Logical Model

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Information Concept Data Concept Definition Type
AerialRefuelling - A procedure used by the military to transfer fuel from one aircraft to another during flight. -
WorkAreaActivity isActive An indication that an aerodrome work area is active. Boolean
WorkAreaActivity - Aerodrome work area activity information. -
WorkArea associatedAerodrome The aerodrome the work area is associated with. Aerodrome
WorkArea activation Time period during which the building site is active or not. WorkAreaActivity
WorkArea type The type of work performed in the work area. CodeWorkAreaType
WorkArea plannedOperational Date when the activities in the construction area are expected to be operational. Date
WorkArea - A part of an aerodrome in which maintenance or construction works are in progress. -
WindShear level Altitude expressed as a vertical distance where the wind shear occurs. ValDistanceType
WindShear - Local variation of the wind vector or any of its components in a given direction. -
WindLayer windVariesTo Indication of the variation of the direction and speed of the wind. windVariesTo indicates the final value of the direction and speed of a varying wind. Wind
WindLayer windInfo The wind information. Wind
WindLayer windVariesFrom Indication of the variation of the direction and speed of the wind. windVariesFrom indicates the initial value of the direction and speed of a varying wind. Wind
WindLayer windCharacteristics Description of the wind characteristics. CodeWindCharacteristicType
WindLayer - Vertically bounded area wind phenomenon, characterized by several attributes of type WindDirection, WindSpeed, a position and a height. -
Wind windSpeed The speed of the wind. ValSpeedType
Wind windGust Variation from the mean surface wind speed as defined by ICAO Annex 3. ValSpeedType
Wind windDirection Direction from which wind is blowing. Angle
Wind verticalWindGust Component wind gust in the upward or downward direction. ValSpeedType
Wind minWindSpeed The minimum speed of the wind. ValSpeedType
Wind maxWindSpeed The maximum speed of the wind. ValSpeedType
Wind isVariable Indication that the direction of the wind changes frequently. According to Annex 3 the wind is reported as variable (VRB) in local routine or special reports, in METAR and SPECI, when one of the following situations occur: - when the total variation is 60 or more and less than 180 and the wind speed is less than 1.5 m/s (3 kt), the wind direction shall be reported as variable with no mean wind direction; or - when the total variation is 180 or more, the wind direction shall be reported as variable with no mean wind direction. Boolean
Wind isCalm Indication that the wind is forecast to be less than 0.5 m/s (1 kt). Boolean
Wind headwind A wind blowing from directly in front, opposing forward motion or orientation. ValSpeedType
Wind extremeCounterClockwiseWindDirection The extreme counter-clockwise direction from which the wind is blowing, inclusive. Angle
Wind extremeClockwiseWindDirection The extreme clockwise direction from which the wind is blowing, inclusive. Angle
Wind crosswind A wind blowing perpendicularly to one's direction of travel or orientation. ValSpeedType
Wind - Air motion relative to the Earth's surface. Unless otherwise specified, only the horizontal component is considered. -
WeatherRadar weatherRadarType The type of weather radar system. CodeWeatherRadarType
WeatherRadar - Radar used to observe weather elements and phenomena. -
WeatherPhenomenon movement The movement of the weather phenomenon. MovementDescription
WeatherPhenomenon weatherCondition The observation or forecast of the weather phenomenon. WeatherCondition
WeatherPhenomenon element A phenomenon which forms an element of this phenomenon. WeatherPhenomenon
WeatherPhenomenon top Altitude of the highest level of the description of a weather phenomenon. ValDistanceType
WeatherPhenomenon significantWeatherQualifier A qualifier used in association with a reported significant weather phenomenon. CodeSignificantWeatherQualifierType
WeatherPhenomenon phenomenonType Description of the type of a weather phenomenon. CodeWeatherPhenomenonType
WeatherPhenomenon intensity Severity of a weather phenomenon. CodeWeatherIntensityType
WeatherPhenomenon base Altitude of the lowest level of the description of a weather phenomenon. ValDistanceType
WeatherPhenomenon - A meteorological event. -
WeatherObserver contactDetails The contact details of the weather observer. ContactInformation
WeatherObserver organisation The organisation for which the weather observer works. Organisation
WeatherObserver - The agent responsible for manual weather observations. -
WeatherLayer cloud A cloud forming part of the weather layer. Cloud
WeatherLayer obscuration An obscuration forming part of the weather layer. Obscuration
WeatherLayer - An array of clouds and/or obscurations whose bases are at approximately the same level. -
WeatherInformationSource location The facility where the weather information source is located. Facility
WeatherInformationSource isWeatherStation Indicator that the source is a weather station. Boolean
WeatherInformationSource isAltimeterInformationProvided Indicates whether the weather source provides altimeter information. Boolean
WeatherInformationSource - An automated or non-automated weather information source. -
WeatherCondition contour A contour used to outline a particular weather situation within the forecast or observation. Contour
WeatherCondition weatherInformationSource The weather information source. WeatherInformationSource
WeatherCondition phenomenon The phenomenon of relevance for the weather condition. WeatherPhenomenon
WeatherCondition type The type of weather condition being reported. CodeWeatherConditionType
WeatherCondition probability Relative likelihood of a forecast expressed as a percentage. Decimal
WeatherCondition hasNoSignificantWeather Indication that no specified en-route weather phenomena which may affect the safety of aircraft operations is occurring or expected to occur. Boolean
WeatherCondition confidence Quality of trusting for a forecast expressed as a percentage. Decimal
WeatherCondition changeIndicator Indication about the type of meteorological conditions changes. CodeChangeIndicatorType
WeatherCondition analysisTime The time at which the forecast or observation process starts. DateTime
WeatherCondition - Weather observations or forecast for an area of interest. -
WaterLaneEnd markingBuoy A buoy used to mark the water lane end. MarkingBuoy
WaterLaneEnd width The overall width of the primary water lane. ValDistanceType
WaterLaneEnd isStandardAirMarkerUsed Indicates that a Standard Air Maker is used at the location. The anchor symbol, similar to the designator found on aeronautical charts, is the Standard Air Marker used to designate a seaplane base. The symbol is often painted on roofs or other flat surfaces that are easily visible from the air. Boolean
WaterLaneEnd name Name given to the water lane end. CharacterString
WaterLaneEnd primaryWaterCentroidLocation The geographic location of the primary water centroid, used to determine the primary and alternate water lanes within the water operating area. Integer
WaterLaneEnd length The overall length of the primary water lane. ValDistanceType
WaterLaneEnd depth The depth of the primary water lane with respect to mean lowest low tide. ValVerticalDistanceType
WaterLaneEnd cardinalDirection Code indicating the cardinal compass location of the turning basin from centroid of the WaterLaneEnd. CodeCompassPointType
WaterLaneEnd approachGuidance Identifies the type of approach guidance in use or planned for the Water Lane End. CharacterString
WaterLaneEnd airMarkerColour The color of the air marker at the location (if any). CodeColourType
WaterLaneEnd - The end of the water lane (typically located at the furthest end of a turning basin) suitable for landing or takeoff runs of aircraft. WaterLaneEnds define the water lane and describe the approach/departure procedure characteristics of a water lane. -
WaterBodyCondition surfaceTemperature The temperature of the ocean surface. The term sea surface temperature is generally meant to be representative of the upper few meters of the ocean as opposed to the skin temperature, which is the temperature of the upper few centimeters. ValTemperatureType
WaterBodyCondition significantWaveHeight The vertical distance between the trough and crest of a wave of operational significance. ValVerticalDistanceType
WaterBodyCondition - Weather observations or forecasts over a defined water body. -
WaterBody associatedAerodrome The aerodrome in the vicinity of which the water body is located. Aerodrome
WaterBody name Name of the sea. CharacterString
WaterBody - A stretch of water on the surface of the Earth. -
VOR informationService The Information service which broadcasts on the VOR InformationService
VOR zeroBearingDirection A code indicating the direction of the 'zero bearing' provided by the station. CodeNorthReferenceType
VOR type A code indicating a type of VOR. CodeVORType
VOR frequency The value of the frequency. ValFrequencyType
VOR declination The angular difference between True North and the station declination. Angle
VOR - A short-range, very-high-frequency omnidirectional beacon which provides an indication in the aircraft of the bearing of the beacon, or left-right track indication. -
Volcano name The name of the volcano. CharacterString
Volcano - A geological formation in form of an Earth crust opening/rupture, which allows hot magma, volcanic ash and gases from below the surface, escape into the atmosphere. -
VolcanicAshCloud volcanicActivity The volcanic activity at the origin of the volcanic ash cloud. VolcanicActivity
VolcanicAshCloud ashConcentration Mass concentration of ash in an ash cloud expressed in mass unit per volume unit. ValConcentrationType
VolcanicAshCloud - Ash contaminated atmospheric volume. -
VolcanicActivity volcano The active volcano. Volcano
VolcanicActivity ashCloud The volcanic ash cloud generated by the volcanic activity. VolcanicAshCloud
VolcanicActivity isErupting Indication wether a volcano is erupting or not. Boolean
VolcanicActivity - Volcanic unrest or eruption. -
VisualGlideSlopeIndicator runwayDirection The runway direction associated with the visual glide slope indicator. RunwayDirection
VisualGlideSlopeIndicator type The type of visual glide slope indicator system installed, based upon the number, colour, and/or position of various components. CodeVASISType
VisualGlideSlopeIndicator slopeAngle A descent angle determined by a visual glide slope indicator system for visual vertical guidance during the final approach of an aircraft. Angle
VisualGlideSlopeIndicator position A location, relative to a runway centreline, of the visual approach slope indicator for a final approach and take off area (FATO)/runway direction. CodeRelativePositionType
VisualGlideSlopeIndicator numberBox The number of units that compose the visual glide slope indicator system. Integer
VisualGlideSlopeIndicator minimumEyeHeightOverThreshold The minimum height of the aircraft cockpit over the threshold when the aircraft glide slope indicator is showing an on-slope indication. ValVerticalDistanceType
VisualGlideSlopeIndicator isPortable An indicator of whether or not a runway's visual glide slope indicator system is capable of being transported or conveyed. Boolean
VisualGlideSlopeIndicator - A visual guidance system that provides 'below/above glidepath' information to an aircraft executing an approach to a specific runway direction. -
VerticalStructurePart lighting An element of the vertical structure part lighting. LightElement
VerticalStructurePart visibleMaterial An indicator of the type(s) of material that compose the load-bearing structure and/or exterior facing of a vertical construction. CodeVerticalStructureMaterialType
VerticalStructurePart verticalExtentAccuracy Accuracy of the value of the declared vertical extent of the vertical structure part. ValDistanceType
VerticalStructurePart verticalExtent The vertical extent of the vertical structure part. ValDistanceType
VerticalStructurePart type An indicator of the type of vertical structure part. CodeVerticalStructureType
VerticalStructurePart topElevation The vertical distance of the highest point of the vertical structure measured from mean sea level. ValAltitudeType
VerticalStructurePart markingSecondColour The secondary colour for the marking of the vertical structure part. CodeColourType
VerticalStructurePart markingPattern The general layout of the external paint or another marking element, intended to increase the visibility of the vertical structure part. CodeVerticalStructureMarkingType
VerticalStructurePart markingFirstColour The principal colour of the marking of the vertical structure part. CodeColourType
VerticalStructurePart isMobile Indication whether the vertical structure part is expected to move around its nominal location. Boolean
VerticalStructurePart isFrangible An indicator that the vertical structure part is easily broken. Boolean
VerticalStructurePart designator A distinguishing label by which the vertical structure part is identified locally. CharacterString
VerticalStructurePart constructionStatus The status of construction of the man-made object that constitutes the vertical structure part. CodeStatusConstructionType
VerticalStructurePart - A part of the vertical structure that can be represented as point, line or polygon with vertical extent. -
VerticalStructure associatedAerodrome The aerodrome associated with the vertical structure Aerodrome
VerticalStructure supportedGroundLight The ground light system supported by the vertical structure. GroundLightSystem
VerticalStructure marker The marker beacon that marks the vertical structure. MarkerBeacon
VerticalStructure hostedRadioNavigationEquipment The radio navigation aid hosted by the vertical structure. RadioNavigationAid
VerticalStructure hostedSpecialNavigationStation The special navigation station hosted by the vertical structure. SpecialNavigationStation
VerticalStructure obstacleArea The ObstacleArea in which the vertical Structure is situated ObstacleArea
VerticalStructure lightingAvailability The operational status of the vertical structure lighting. LightStatus
VerticalStructure supportedService The service supported by the vertical structure. Service
VerticalStructure hostedOrganisation The organisation hosted by the vertical structure. Organisation
VerticalStructure part Part of the vertical structure. VerticalStructurePart
VerticalStructure hostedPassengerService The passenger service hosted by the vertical structure. PassengerService
VerticalStructure obstacleDocumentation Documentation of how an obstacle is obtained, studied and/or built. Document
VerticalStructure hostedUnit The unit hosted by the vertical structure. Unit
VerticalStructure width Overall width of the vertical structure. ValDistanceType
VerticalStructure type The type of vertical structure. CodeVerticalStructureType
VerticalStructure radius The overall length of the radius of a vertical structure that has a relatively circular shape. ValDistanceType
VerticalStructure name The name of the vertical structure. CharacterString
VerticalStructure length The overall length of the vertical structure. ValDistanceType
VerticalStructure isSynchronisedLighting Indication that the flashing light elements that compose the lighting of the vertical structure (could be a group) are synchronised (flash in unison). Boolean
VerticalStructure isMarkingICAOStandard Indication whether vertical structure markings comply with the International Civil Aviation Organisation (ICAO) standard, as described in Annex 14. Boolean
VerticalStructure isLightingICAOStandard Indication whether the lighting complies with the ICAO standard as described in Annex 14. Boolean
VerticalStructure isLighted Indication that the vertical surface is lighted. Boolean
VerticalStructure isGroup An indication that the vertical structure consists of a number of closely situated similar objects. Boolean
VerticalStructure - All fixed and mobile objects, or parts thereof that extend above the surface of the Earth. -
VerticalConstraint - A restriction brought to the vertical component of the trajectory of an aircraft. -
Vehicle state Current vehicle vector. AircraftState
Vehicle - Any means of carriage, conveyance, or transport. -
ValWeightType uom Unit of measure CodeUomWeightType
ValWeightType - The weight value. -
ValVerticalDistanceType verticalReference The reference surface used for determining the value of the vertical distance. CodeVerticalReferenceType
ValVerticalDistanceType specialHeightValue ATM specific height type CodeSpecialHeightValueType
ValVerticalDistanceType heightReference The reference surface for a height value. CodeHeightReferenceType
ValVerticalDistanceType - The separation between two points in the vertical plane. -
ValVelocityType direction The direction of travel. Angle
ValVelocityType - Velocity is the instantaneous rate of change of position with time. It is usually calculated using the simple formula, the change in position during a given time interval. -
ValTemperatureType uom Unit of measure CodeUomTemperatureType
ValTemperatureType - The value of a temperature. -
ValSpeedWithBoundaryType valueInterpretation Indication of how the speed value should be interpreted. CodeValueInterpretationType
ValSpeedWithBoundaryType speedTolerance Allowable amount of variation in speed. SpeedRangeType
ValSpeedWithBoundaryType - A speed contained within given limits. -
ValSpeedType uom Unit of measure CodeUomVelocityType
ValSpeedType - The measure of motion in terms of speed in a particular direction. It is usually calculated using the simple formula, the change in position during a given time interval. -
ValRateOfTurnType turnIndicator The turn indicator. CodeDirectionTurnType
ValRateOfTurnType precision The precision of the unit. Number
ValRateOfTurnType accuracy Accuracy (standard deviation) of the measured value. Number
ValRateOfTurnType - The value of a rate of turn. -
ValPressureType uom Unit of measure CodeUomPressureType
ValPressureType - The value of a pressure. -
ValPowerType uom Unit of measure CodeUomPowerType
ValPowerType - The value of a power. -
ValParticleFluxType uom Unit of measure CodeUomParticleFluxType
ValParticleFluxType - The value of the particle flux. -
ValParticleContentType uom Unit of measure CodeUomParticleContentType
ValParticleContentType - The value of a particle content. -
ValMassType uom Unit of measure CodeUomMassType
ValMassType - A mass value. -
ValLightIntensityType uom Unit of measure CodeUomLuminousIntensityType
ValLightIntensityType - The luminous intensity of a light source. It is a measure of the wavelength-weighted power emitted by a light source in a particular direction. -
ValHexType pattern A regular expression constraining the datatype CharacterString
ValHexType - A hexadecimal value. -
ValFrequencyType uom Unit of measure CodeUomFrequencyType
ValFrequencyType - The frequency value of a navigation system. -
ValEnergyFluxType uom Unit of measure CodeUomEnergyFluxType
ValEnergyFluxType - missing data -
ValDistanceType uom Unit of measure CodeUomLengthType
ValDistanceType - The separation between two points. -
ValConcentrationType uom Unit of measure CodeUomMassConcentrationType
ValConcentrationType - The value of a concentration, which represent the abundance of a constituent divided by the total volume of a mixture. -
ValAltitudeWithBoundaryType valueInterpretation Indication of how the altitude value should be interpreted. CodeValueInterpretationType
ValAltitudeWithBoundaryType altitudeTolerance Allowable amount of variation in altitude. AltitudeRangeType
ValAltitudeWithBoundaryType - An altitude contained within given limits. -
ValAltitudeType - The vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL). -
ValAccelerationType uom Unit of measure CodeUomAccelerationType
ValAccelerationType - Calculated acceleration of the target expressed in Cartesian co-ordinates. -
UsageCondition aircraftType A type of aircraft for which the usage is specified. AircraftType
UsageCondition weather Weather conditions for which the usage is specified. AviationCondition
UsageCondition flight A type of flight for which the usage is specified. Flight
UsageCondition contact The contact information for a person or group. ContactInformation
UsageCondition type The nature of the limitation which determines rules for usage of an aerodrome or one of its surfaces. CodeUsageLimitationType
UsageCondition priorPermission An indication that a prior permission is required before using the aerodrome movement area. TM_Duration
UsageCondition - A rule governing the usage of an aerodrome or one of its surfaces. -
UpperAirObservingSystem upperAirObservationSystemType The type of upper air observing system. CodeUpperAirObservationSystemType
UpperAirObservingSystem - The upper-air observing program of NOAA, composed a network of ground-based remote-sensing wind profilers, en-route commercial aircraft in-situ observations (MDCRS), upper-air observations taken manually by pilots and disseminated by PIREPs, and of a network of rawinsonde stations (section 0). -
UnplannedHolding holdingFix Point used to evaluate safe holding. InfrastructurePoint
UnplannedHolding unplannedHolding Indication whether the holding pattern is used as an unplanned holding. CodeApprovalType
UnplannedHolding isCompletelyWithinControlledAirspace Indication whether the unplanned holding is completely contained within controlled airspace. Boolean
UnplannedHolding authorizedAltitude Approved altitude based on unplanned holding assessment. ValVerticalDistanceType
UnplannedHolding - A specific holding procedure requested at an en-route fix on airway or route radials, bearings, or courses. -
UnitDependency type An indicator of the kind of dependency that a related unit has in relation to the unit. CodeUnitDependencyType
UnitDependency - The operational or functional relationship between two related units. -
UnitAvailability operationalStatus An indicator of the operational status of a Unit in regards to its availability. CodeStatusOperationsType
UnitAvailability - Status and scheduling information about a unit. -
Unit airspaceUnderResponsibility The Airspace which is under the responsibility of the Unit Airspace
Unit areaOfResponsibility The airspace wherein flights are under the control of the ATSU. Airspace
Unit areaOfInterest The volumetric extension of the area of resposibility of an ATSU that allows detecting flights of interest. Airspace
Unit aerodromeLocation The aerodrome where the unit is located. Aerodrome
Unit surveillanceRadar SurveillanceRadar utilised by the Unit SurveillanceRadar
Unit service The service provided by the Unit Service
Unit contact Contact details for the unit. ContactInformation
Unit ownerOrganisation The organisation to which the unit belongs. Organisation
Unit availability The operational status of the unit. UnitAvailability
Unit relatedUnit The related unit. Unit
Unit unitRole The role played by the unit. CodeRoleKindType
Unit unitResponsibility The responsibility of the unit. CodeResponsibilityKindType
Unit type An indicator of the type of unit, usually related to the standard type of services provided by it. CodeUnitType
Unit name The full textual name of a unit, established according to the rules specified by International Civil Aviation Organisation (ICAO), and specifically in the official language of the country, transposed into the Latin Alphabet where necessary. CharacterString
Unit military An indicator of the operational nature of the unit. CodeMilitaryOperationsType
Unit locationIndicatorICAO A four-letter code group formulated in accordance with rules prescribed by ICAO and assigned to the ATS unit. CharacterString
Unit isIOPEnabled Indication whether the unit is IOP-enabled. Boolean
Unit isCpdlcEnabled Indication whether CPDLC facility is enabled. Boolean
Unit isCompliantICAO An indicator that the Unit is setup according to the International Civil Aviation Organisation (ICAO) Standards and Recommended Practices (SARPS). Boolean
Unit isAirspaceManagementCell Indicates whether the Unit is an AMC, a joint civil/military unit responsible for the day-to-day management and temporary allocation of national or sub-regional airspace under the jurisdiction of one or more ECAC state(s). Boolean
Unit designator A distinguishing label, term, abbreviation or acronym used to identify the Unit. CharacterString
Unit - A generic term referring to all types of entities providing all types of ATM related services. -
TwoDimensionalSurfaceType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
TwoDimensionalSurfaceType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
TwoDimensionalSurfaceType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
TwoDimensionalSurfaceType - Derived from GM_Surface and extended to include Horizontal Accuracy properties -
TwoDimensionalPointType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
TwoDimensionalPointType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
TwoDimensionalPointType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
TwoDimensionalPointType - Derived from GM_Point and extended to include Horizontal Accuracy properties -
TwoDimensionalCurveType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
TwoDimensionalCurveType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
TwoDimensionalCurveType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
TwoDimensionalCurveType - Derived from GM_Curve and extended to include Horizontal Accuracy properties -
TurningBasin width The overall width measurement of the turning basin to the nearest 5 feet. ValDistanceType
TurningBasin restriction Any restrictions or cautions associated with the Turning Basin. CharacterString
TurningBasin name A commonly used name for the turning basin. CharacterString
TurningBasin length The overall length measurement of the turning basin to the nearest 5 feet. ValDistanceType
TurningBasin diameter The diameter of the turning basin available for use by aircraft to the nearest 5 feet. ValDistanceType
TurningBasin depth The depth measurement of the turning basin with respect to mean lowest low tide to the nearest 0.5 foot. ValVerticalDistanceType
TurningBasin cardinalDirection Code indicating the cardinal compass location of the turning basin from centroid of the WaterLaneEnd. CodeCompassPointType
TurningBasin - A water area used for the maneuvering of aircraft where the use of water surface is restricted. Turning basins should be located adjacent to shoreline facilities and at each end of the water operating area. -
Turbulence turbulenceType The type of turbulence. CodeTurbulenceType
Turbulence edr Eddy dissipation rate, characterization of atmospheric turbulence. Decimal
Turbulence - Atmospheric flow regime characterized by chaotic and stochastic property changes. This includes low momentum diffusion, high momentum convection, and rapid variation of pressure and velocity in space and time. -
Tropopause temperature The temperature of the tropopause. ValTemperatureType
Tropopause - The boundary between the troposphere and the stratosphere, where an abrupt change in lapse rate usually occurs. -
TropicalCyclone name Name of the tropical cyclone. CharacterString
TropicalCyclone maxSurfaceWindSpeed Maximum surface wind speed of a tropical cyclone. ValSpeedType
TropicalCyclone centralPressure Pressure at the centre of the cyclone. ValPressureType
TropicalCyclone - Cyclone of tropical origin of small diameter (some hundreds of kilometres) with minimum surface pressure in some cases less than 900 hPa, very violent winds and torrential rain; sometimes accompanied by thunderstorms. It usually contains a central region, known as the eye" of the storm, with a diameter of the order of some tens of kilometres, and with light winds and more or less lightly clouded sky." -
TrafficSeparationService isRadarAssisted Indication whether the service is provided with radar assistance. Boolean
TrafficSeparationService isDataLinkEnabled Indication whether Controller-Pilot Data-Link Communication (CPDLC) is available in support of the service. Boolean
TrafficSeparationService dataLinkChannel The channel on which the data-link takes place, if applicable. CharacterString
TrafficSeparationService airTrafficServiceType The type of air traffic service provided. CodeAirTrafficServiceType
TrafficSeparationService - A service that provides control and separation services, to aircraft in the air and on the ground. -
TouchDownLiftOffSafeArea protectedTouchDownLiftOff The protected touch down and lift-off area. TouchDownLiftOff
TouchDownLiftOffSafeArea - An obstacle-free area situated in the vicinity of a touchdown and lift-off area, provided to protect helicopters during manoeuvring, take-off and / or landing operations. -
TouchDownLiftOffMarking markedTouchDownLiftOff The touch down lift-off marked. TouchDownLiftOff
TouchDownLiftOffMarking TLOFmarkingType The type of TLOF marking. CodeTLOFMarkingType
TouchDownLiftOffMarking - A symbol or group of symbols displayed on the surface of the touch down and lift-off area at an aerodrome. -
TouchDownLiftOffLightSystem lightedTouchDownLiftOff The touch down lift off zone lit by the touch down lift-off light system. TouchDownLiftOff
TouchDownLiftOffLightSystem position A indication of the part of the touch down and lift-off surface the lighting system is serving. CodeTLOFSectionType
TouchDownLiftOffLightSystem - The lighting system provided for a touch down and lift-off surface at an aerodrome. -
TouchDownLiftOffContamination contaminatedTLOF The contaminated TouchDownLiftOff. TouchDownLiftOff
TouchDownLiftOffContamination - The presence or removal of hazardous conditions due to snow, ice, slush, water, etc. on the Touch Down and Lift-Off (TLOF) surface. -
TouchDownLiftOff helicopterClass The class of a helicopter associated with a touch down and lift-off area. AircraftCategory
TouchDownLiftOff aimingPoint The centre point of the touch down lift-off used as a significant point on instrument approach procedures. InfrastructurePoint
TouchDownLiftOff contaminant Touch down lift-off contaminant. TouchDownLiftOffContamination
TouchDownLiftOff associatedAerodrome The aerodrome the touch down lift-off zone is associated with. Aerodrome
TouchDownLiftOff connectingGuidanceLine A GuidanceLine which connects to the TouchDownLiftOff GuidanceLine
TouchDownLiftOff availability The operational status of the touch down lift-off area. ManoeuvringAreaAvailability
TouchDownLiftOff approachTakeOffArea The approach and take off runway area containing the touchdown lift off zone. Runway
TouchDownLiftOff surfaceProperties Surface characteristics of the touch down and lift-off zone. SurfaceCharacteristics
TouchDownLiftOff touchDownLiftOffLightSystem The LightSystem provided for an TouchDownLiftOff TouchDownLiftOffLightSystem
TouchDownLiftOff touchDownLiftOffMarking The Marking marked on the TouchDownLiftOff TouchDownLiftOffMarking
TouchDownLiftOff touchDownLiftOffSafeArea A safe area protecting the touch down lift-off area. TouchDownLiftOffSafeArea
TouchDownLiftOff navaid Navaid installed at a particular landing area. RadioNavigationService
TouchDownLiftOff width The physical width of the touchdown and lift-off area. ValDistanceType
TouchDownLiftOff slope The slope (rate of upward inclination of the surface from the horizontal) of the surface of a touch down and lift-off area. Decimal
TouchDownLiftOff length The physical length of the touchdown and lift-off area. ValDistanceType
TouchDownLiftOff isAbandoned An indicator that the touch down and lift-off area is no longer in operational use, but it is still physically present and visible, although usually in a degraded state. Boolean
TouchDownLiftOff designator The designator of the touch down and lift-off area. CharacterString
TouchDownLiftOff - A load bearing area on which a helicopter may touch down or lift off. -
TornadicVortex isWaterspout Indicates a violent, rotating column of air that forms over a body of water, and touches the water surface; tornado or funnel cloud that touches a body of water. Boolean
TornadicVortex isTornado Indicates a violent, rotating column of air touching the ground. It forms a pendant, usually from a cumulonimbus cloud, nearly always starts as a funnel cloud, and is accompanied by a loud roaring noise. Boolean
TornadicVortex isFunnelCloud Indicates a violent, rotating column of air, which does not touch the surface, usually appended to a cumulonimbus cloud. Boolean
TornadicVortex - A violently rotating column of air, usually pendant to a cumulonimbus, with circulation reaching the ground. It nearly always starts as a funnel cloud and may be accompanied by a loud roaring noise. -
Timesheet timeReference An indicator of the time reference system or reference system offset for time values specified in the timesheet. CodeTimeReferenceType
Timesheet startTimeRelativeEvent The number of minutes before or after the start event when the period described in the timesheet starts. TM_Duration
Timesheet startTime The time of the day when the period described in the timesheet starts. ClockTime
Timesheet startEventInterpretation When both the 'StartTime' and 'StartEvent' values of a timesheet are not blank, this explains how the combination of the two values should be interpreted, i.e. which of the two moments in time is the beginning of the period described by the timesheet. CodeTimeEventCombinationType
Timesheet startEvent A reference to an event (like sunset or sunrise), the occurrence of which indicates when the period described in the timesheet starts. CodeTimeEventType
Timesheet startDate The start date of the validity of the timesheet. Date
Timesheet isExcluded An indicator that the time block indicated by the timesheet is excluded (subtracted) from the total time interval(s) defined by one or more additional timesheet(s). Boolean
Timesheet endTimeRelativeEvent The number of minutes before or after the end event when the period described in the timesheet ends. TM_Duration
Timesheet endTime The time of the day when the period described in the timesheet ends. ClockTime
Timesheet endEventInterpretation When both the 'EndTime' and 'EndEvent' values of the timesheet are not blank, this attribute explains how the combination of the two attributes should be interpreted, i.e. which of the two moments in time is the end of the period described by the timesheet. CodeTimeEventCombinationType
Timesheet endEvent A reference to an event (like sunset or sunrise), the occurrence of which indicates when the period described in the timesheet ends. CodeTimeEventType
Timesheet endDate The end date of the validity of the timesheet. Date
Timesheet dayTil An indicator of the days affected by the timesheet. CodeParticularDayType
Timesheet daylightSavingAdjust Indicates that the startTime and endTime values of the timesheet have to be decreased by one hour when Daylight Saving is in force (summer time). Boolean
Timesheet day An indicator of the day the timesheet is referring to. CodeParticularDayType
Timesheet - The definition of a single time interval, that occurs repeatedly as part of a schedule. -
TimeRangeType later The upper limit of the time range. DateTime
TimeRangeType earlier The lower limit of the time range. DateTime
TimeRangeType - The area of variation of a time between earlier and later limits. -
TimeConstraint requiredLanding The landing event required by the time constraint. Landing
TimeConstraint requiredOffBlock The off block event required by the time constraint. OffBlock
TimeConstraint requiredTakeOff The take-off event required by the time constraint. TakeOff
TimeConstraint - A restriction brought to the time component of the trajectory of an aircraft. -
ThreeDimensionalSurfaceType verticalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
ThreeDimensionalSurfaceType verticalDatum The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements are made as basis for measuring elevations. CodeVerticalDatumType
ThreeDimensionalSurfaceType verticalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
ThreeDimensionalSurfaceType verticalAccuracy The difference between the recorded elevation of an entity and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability. ValDistanceType
ThreeDimensionalSurfaceType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
ThreeDimensionalSurfaceType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
ThreeDimensionalSurfaceType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
ThreeDimensionalSurfaceType geoidUndulation The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the surface. ValDistanceType
ThreeDimensionalSurfaceType elevation The vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level. ValAltitudeType
ThreeDimensionalSurfaceType - Derived from GM_Surface and extended to include properties that represent the vertical position (elevation, datum, accuracy). -
ThreeDimensionalPointType verticalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
ThreeDimensionalPointType verticalDatum The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements are made as basis for measuring elevations. CodeVerticalDatumType
ThreeDimensionalPointType verticalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
ThreeDimensionalPointType verticalAccuracy The difference between the recorded elevation of an entity and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability. ValDistanceType
ThreeDimensionalPointType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
ThreeDimensionalPointType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
ThreeDimensionalPointType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
ThreeDimensionalPointType height The vertical distance of a level, a point or an object considered as a point, measured from a specified datum. ValVerticalDistanceType
ThreeDimensionalPointType geoidUndulation The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point. ValDistanceType
ThreeDimensionalPointType elevation The vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level. ValAltitudeType
ThreeDimensionalPointType altitude The vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL). ValAltitudeType
ThreeDimensionalPointType - Derived from GM_Point and extended to include properties for describing a point with elevation and vertical extent. -
ThreeDimensionalCurveType verticalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
ThreeDimensionalCurveType verticalDatum The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements are made as basis for measuring elevations. CodeVerticalDatumType
ThreeDimensionalCurveType verticalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
ThreeDimensionalCurveType verticalAccuracy The difference between the recorded elevation of an entity and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability. ValDistanceType
ThreeDimensionalCurveType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
ThreeDimensionalCurveType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
ThreeDimensionalCurveType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
ThreeDimensionalCurveType geoidUndulation The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the curve. ValDistanceType
ThreeDimensionalCurveType elevation The vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level. ValAltitudeType
ThreeDimensionalCurveType - Derived from GM_Curve and extended to include properties that represent the vertical position (elevation, datum, accuracy). -
TerminalArrivalAreaSector sectorDefinition A portion of a circle. CircleSector
TerminalArrivalAreaSector significantObstacle The obstacle that controls the altitude definition of the sector. Obstruction
TerminalArrivalAreaSector waypointType The type of waypoint over or by which the aircraft is required to fly. CodeInfrastructurePointUsageType
TerminalArrivalAreaSector isCourseReversalRequired Indication whether a course reversal is required. Boolean
TerminalArrivalAreaSector altitudeDescription Indication how the altitude attributes should be interpreted. CodeAltitudeUseType
TerminalArrivalAreaSector - Subdivision of the TAA to allow for lower altitudes. The lowest altitude will provide a minimum clearance of 300m (1000ft) above all objects located in the sector. -
TerminalArrivalAltitude iaf Initial approach fix used by the TAA. InfrastructurePoint
TerminalArrivalAltitude if Intermediate fix used by the TAA. InfrastructurePoint
TerminalArrivalAltitude approachRNAV An approach built for use by aircraft with equipment that can determine the location of a point based on the latitude and longitude. InstrumentApproachProcedure
TerminalArrivalAltitude sector A subdivision of the TAA designed to provide the lowest altitude possible and maintain safety. TerminalArrivalAreaSector
TerminalArrivalAltitude outerBufferWidth The buffer size of the outer arc boundary. ValDistanceType
TerminalArrivalAltitude lateralBufferWidth The buffer size of the lateral or inner boundary. ValDistanceType
TerminalArrivalAltitude arrivalAreaType The base type of the terminal arrival area. CodeTAAType
TerminalArrivalAltitude - The lowest altitude that will provide a minimum clearance of 300 m (1 000 ft) above all objects located in an arc of a circle defined by a 46 km (25 NM) radius centred on the initial approach fix (IAF), or where there is no IAF on the intermediate approach fix (IF), delimited by straight lines joining the extremity of the arc to the IF. The combined TAAs associated with an approach procedure shall account for an area of 360 degrees around the IF. -
Terminal availability Information about the operational status of the terminal. AerodromeAvailability
Terminal gate A gate at the terminal. Gate
Terminal numberOfPassengerLevels Number of levels for passengers at the terminal. Integer
Terminal numberOfLuggageReclaimDevices Number of luggage reclaim devices available at the terminal. Integer
Terminal numberOfGateRooms Number of gate rooms available at the terminal. Integer
Terminal numberOfDeparturePassportDesks Number of departure passport desks available at the terminal. Integer
Terminal numberOfCustomChannels Number of custom channels at the terminal. Integer
Terminal numberOfCheckInDesks Number of check-in desks available at the terminal. Integer
Terminal numberOfBagSecurityPoints Number of bag security points available at the terminal. Integer
Terminal numberOfArrivalPassportDesks Number of arrival passport desks available at the terminal. Integer
Terminal internationalType The Terminal may be reserved for domestic/national flights or for international flights (Schengen or not). CodeInternationalFlightType
Terminal designator A name identifying a terminal. CharacterString
Terminal description Free text field used to describe a terminal. CharacterString
Terminal - An installation on an aerodrome with facilities for loading and unloading aircraft and processing traffic (passengers, baggage, cargo and mail). -
TemporalEnabledEntity timesheet A schedule concerning the entity. Timesheet
TemporalEnabledEntity startValidity Date and time at which the data contained in the entity state starts to be effective DateTime
TemporalEnabledEntity startEntityLifetime Start of life of the entity, indicating the date and time at which the entity starts to exist DateTime
TemporalEnabledEntity source Name of entity or organisation that supplied data. CharacterString
TemporalEnabledEntity lastRevision Date and time when the data was last revised. DateTime
TemporalEnabledEntity interpretation How the entity state is to be interpreted. CodeValidityPeriodInterpretationType
TemporalEnabledEntity endValidity Date and time at which the data contained in the entity state ceases to be effective DateTime
TemporalEnabledEntity endEntityLifetime End of life of the entity, indicating the date and time at which the entity ceases to exist DateTime
TemporalEnabledEntity - An entity which has a lifecycle, including a start of life, an end of life and various states along its life. -
TelephoneContact voice The telephone number by which individuals can speak to the responsible organisation or individual. CharacterString
TelephoneContact facsimile The telephone number of a facsimile machine for the responsible organisation or individual. CharacterString
TelephoneContact - Telephone numbers at which the organisation or individual may be contacted. -
TaxiwayMarking markedTaxiway Taixway that is marked. Taxiway
TaxiwayMarking markedElement Taxiway element marked by the taxiway marking. TaxiwayElement
TaxiwayMarking taxiwayMarkingType The type of taxiway marking. CodeTaxiwayMarkingType
TaxiwayMarking - A symbol or group of symbols displayed on the surface of the taxiway. -
TaxiwayLightSystem lightedTaxiway Taxiway lit by the light system. Taxiway
TaxiwayLightSystem position A code indicating the part of the taxiway surface the lighting system is serving. CodeTaxiwaySectionType
TaxiwayLightSystem - The lighting system provided for a taxiway at an aerodrome. -
TaxiwayIntersectionMarking markingPattern The type of marking pattern used at this location CodeMarkingPatternType
TaxiwayIntersectionMarking holdingSide Relative location of the holding side of a holding position, from startpoint to endpoint of line CodeHoldingSideType
TaxiwayIntersectionMarking - A marking painted at a position at which taxiing aircraft and vehicles are expected to stop and hold until further cleared to proceed, when so instructed by the aerodrome control tower. -
TaxiwayHoldingPositionMarking markedTaxiwayHoldingPosition Taxiway holding position that is marked. TaxiwayHoldingPosition
TaxiwayHoldingPositionMarking taxiwayHoldingPositionMarkingType The type of taxiway holding position marking. CodeTaxiwayHoldingPositionMarkingType
TaxiwayHoldingPositionMarking markingPattern The type of marking pattern used at this location CodeMarkingPatternType
TaxiwayHoldingPositionMarking holdingSide Relative location of the holding side of a holding position, from startpoint to endpoint of line CodeHoldingSideType
TaxiwayHoldingPositionMarking isRunwayEntryLightSystemInstalled Indicates if Runway Entry Light system is installed at holding position Boolean
TaxiwayHoldingPositionMarking - A symbol or group of symbols displayed on the surface of a Taxiway indicating the location of the Taxiway Holding Position. -
TaxiwayHoldingPositionLightSystem taxiwayHoldingPosition The taxiway holding position lit by the taxiway holding position light system. TaxiwayHoldingPosition
TaxiwayHoldingPositionLightSystem type The kind of lighting aid provided for the taxiway holding position. CodeLightHoldingPositionType
TaxiwayHoldingPositionLightSystem - Lighting system for a taxiway hold position. -
TaxiwayHoldingPosition associatedGuidanceLine The guidance line containing the taxi holding position. GuidanceLine
TaxiwayHoldingPosition protectedRunway Runway protected by the taxi holding position. Runway
TaxiwayHoldingPosition runwayElement A runway element associated with the taxiway holding position. RunwayElement
TaxiwayHoldingPosition taxiwayElement A taxiway element associated with the taxiway holding position. TaxiwayElement
TaxiwayHoldingPosition taxiHoldingPositionLightSystem The LightSystem provided for an TaxiHoldingPosition TaxiwayHoldingPositionLightSystem
TaxiwayHoldingPosition taxiwayHoldingPositionMarking The Marking marked on the TaxiHoldingPosition TaxiwayHoldingPositionMarking
TaxiwayHoldingPosition status An indication of the operational status of the taxi holding position. CodeStatusOperationsType
TaxiwayHoldingPosition landingCategory Type of landing operations for which that holding position is relevant. CodeInstrumentApproachCategoryType
TaxiwayHoldingPosition - A designated position at which taxiing aircraft and vehicles must stop and hold position, unless otherwise authorized by the aerodrome control tower. -
TaxiwayElement suitableAircraft Aircraft for which this taxiway element is suitable. AircraftType
TaxiwayElement apronElement An apron element associated with this taxiway element. ApronElement
TaxiwayElement deicingArea A deicing area associated with the taxiway element. DeicingArea
TaxiwayElement guidanceLine A guidance line associated with the taxiway element. GuidanceLine
TaxiwayElement availability The operational status of the taxiway element. ManoeuvringAreaAvailability
TaxiwayElement runwayElement A runway element associated with the taxiway element. RunwayElement
TaxiwayElement surfaceProperties Surface characteristics of the taxiway element. SurfaceCharacteristics
TaxiwayElement associatedTaxiway The taxiway associated with the taxiway element. Taxiway
TaxiwayElement taxiwayElement A taxiway element associated with this taxiway element. TaxiwayElement
TaxiwayElement taxiwayHoldingPosition A taxiway holding position associated with the taxiway element. TaxiwayHoldingPosition
TaxiwayElement taxiwayElementMarking The Marking marked on the TaxiwayElement TaxiwayMarking
TaxiwayElement width The width of the taxiway element. ValDistanceType
TaxiwayElement type The type of taxiway element. CodeTaxiwayElementType
TaxiwayElement length The length of the taxiway element. ValDistanceType
TaxiwayElement gradeSeparation An indication of the placement of the taxiway element at a different height from another element. CodeGradeSeparationType
TaxiwayElement - Part of a taxiway. -
TaxiwayContamination contaminatedTaxiway The contaminated taxiway Taxiway
TaxiwayContamination clearedWidth The width of taxiway cleared of contamination. ValDistanceType
TaxiwayContamination - The presence or removal of hazardous conditions due to snow, ice, slush, water, etc. on the taxiway surface. -
Taxiway contaminant Taxiway contaminant. TaxiwayContamination
Taxiway associatedAerodrome The aerodrome the taxiway is associated with. Aerodrome
Taxiway deicingArea Deicing area located on the taxiway DeicingArea
Taxiway connectingGuidanceLine A GuidanceLine which connects to the Taxiway GuidanceLine
Taxiway availability The operational status of the taxiway. ManoeuvringAreaAvailability
Taxiway surfaceProperties Surface characteristics of the taxiway. SurfaceCharacteristics
Taxiway taxiwayLightSystem The LightSystem provided for an Taxiway TaxiwayLightSystem
Taxiway taxiwayMarking The Marking marked on the Taxiway TaxiwayMarking
Taxiway taxiwayElement TaxiwayElement which describes part of the Taxiway TaxiwayElement
Taxiway widthShoulder The taxiway shoulder width. ValDistanceType
Taxiway width The physical width of the taxiway. ValDistanceType
Taxiway type An indication of a type of taxiway. CodeTaxiwayType
Taxiway length The length of the taxiway. ValDistanceType
Taxiway isAbandoned An indicator that a taxiway is no longer in operational use, but it is still physically present and visible, although usually in a degraded state. Boolean
Taxiway designator The textual designator of the taxiway. CharacterString
Taxiway - A defined path on a land aerodrome established for the taxiing of aircraft and intended to provide a link between one part of the aerodrome and another, including: a) Aircraft stand taxilane. A portion of an apron designated as a taxiway and intended to provide access to aircraft stands only. b) Apron taxiway. A portion of a taxiway system located on an apron and intended to provide a through taxi route across the apron. c) Rapid exit taxiway. A taxiway connected to a runway at an acute angle and designed to allow landing aeroplanes to turn off at higher speeds than are achieved on other exit taxiways thereby minimizing runway occupancy times. -
TaxiInClearance taxiPath The taxi path that is expected to be given as part of the clearance. RouteTrajectorySegment
TaxiInClearance - Information relating to the taxi-in clearance of an aircraft. -
TaxiChannel markingBuoy A buoy used to mark the taxi channel. MarkingBuoy
TaxiChannel width The overall width measurement of the Taxi Channel. ValDistanceType
TaxiChannel restriction Any restrictions or cautions associated with the taxi channel. CharacterString
TaxiChannel name Any commonly used name associated with the taxi channel. CharacterString
TaxiChannel length The overall length measurement of the Taxi Channel. ValDistanceType
TaxiChannel depth The depth measurement of the Taxi Channel with respect to mean lowest low tide. ValVerticalDistanceType
TaxiChannel - A water channel used for the movement of aircraft between on shore facilities and the water lane. -
TakeOffConfiguration constraint A constraint on the flight configuration caused by the operator's configuration. OperatorConfiguration
TakeOffConfiguration flight The flight for which the configuration applies. Flight
TakeOffConfiguration crewMember Crew member onboard the aircraft. CrewMember
TakeOffConfiguration takeOffWeight The weight of the aircraft at the beginning of the take-off phase. ValMassType
TakeOffConfiguration numberOfTrafficUnits Number of traffic units for the flight. One traffic unit is equivalent to one passenger or 100Kg air freight or 10 kg air mail. Integer
TakeOffConfiguration personsOnBoard The total number of persons (passengers and crew) on board. Integer
TakeOffConfiguration numberOfPassengers The number of passenger for the flight. Integer
TakeOffConfiguration isPassenger Whether the aircraft has passengers onboard at take-off. Boolean
TakeOffConfiguration isCargo Whether the aircraft has cargo onboard at take-off. Boolean
TakeOffConfiguration estimatedTakeOffWeight The weight of the aircraft at the beginning of the take-off phase. ValWeightType
TakeOffConfiguration cargoWeight The weight of the cargo of the flight. ValMassType
TakeOffConfiguration - Aircraft configuration for a given flight. It is the configuration at take-off"." -
TakeOff time Time at which the aircraft leaves the ground and becomes airborne. DateTimeWithPlanningType
TakeOff targetTimeStatus The status of the target take-off time. CodeTargetTimeStatusType
TakeOff - Event in which an aircraft takes-off. -
TACAN declination The angular difference between the direction of the 'zero bearing' indicated by the station and the direction of the True North. Angle
TACAN channel A code indicating the channel of the TACAN system. CodeTACANChannelType
TACAN - A navigation system developed by military and naval forces providing, as far as the navigating pilot is concerned and for suitably equipped aircraft, the same indication as a VOR/DME system. -
SurveillanceRadar groundStation The ground station where the radar scope is utilised. Unit
SurveillanceRadar verticalCoverageAzimuth Azimuth for which the radar provides vertical coverage. Angle
SurveillanceRadar verticalCoverageDistance Distance for which the radar provides vertical coverage. ValDistanceType
SurveillanceRadar verticalCoverageAltitude Altitude for which the radar provides vertical coverage. ValVerticalDistanceType
SurveillanceRadar tiltAngle Angle at which the antenna is tilted. Angle
SurveillanceRadar isAntennaTiltFixed Indication whether the antenna tilt is fixed. Boolean
SurveillanceRadar automatedRadarTerminalSystem A system in the air traffic control system using radar intelligence to detect and display pertinent data such as flight identification, altitude, and position of aircraft operating in the terminal area. CharacterString
SurveillanceRadar - Radar equipment used to determine the position of an aircraft in range and azimuth. -
SurveillanceGroundStation isVideoMapAvailable Indication whether a Video Map is available for the component. Boolean
SurveillanceGroundStation - Information about the ground station where the radar scope is utilised. -
SurfaceWeatherObservation surfaceWeatherObservationSystemType The type of surface weather observation system. CodeSurfaceWeatherObservationSystem
SurfaceWeatherObservation - Surface weather observations provide numerous weather elements, that are observed by a variety of sensors, both measurable (e.g., pressure and temperature) and derived elements (e.g., density altitude). -
SurfaceVehicle surfaceVehicleType Type of surface vehicle. CodeSurfaceVehicleIdentificationType
SurfaceVehicle - A vehicle (other than aircraft) which may operate in the airport movement area. -
SurfaceContaminationLayer type The type of contaminating substance on the movement area surface. CodeContaminationType
SurfaceContaminationLayer surfaceExtent Contamination extent. ThreeDimensionalSurfaceType
SurfaceContaminationLayer layerOrder The order of the layer (starting from the uppermost, towards the movement area surface), in case overlapping contaminants are present. Integer
SurfaceContaminationLayer contaminationExtent The proportion of a runway surface that is contaminated by a contaminant, as a percentage of the total runway area. CodeValueContaminationExtentType
SurfaceContaminationLayer - An operationally significant contaminant of homogeneous type such as snow, ice, slush, water, sand, etc., which is present on a large surface of the aerodrome area. -
SurfaceContamination criticalRidge A ridge or bank of contaminant that might affect operations. Ridge
SurfaceContamination layer A layer of contaminant. SurfaceContaminationLayer
SurfaceContamination wasCleared Indication that the surface was cleared. Boolean
SurfaceContamination proportion The percentage of the contaminated area of the overall extent of the surface. Decimal
SurfaceContamination observationTime The date and time of surface contamination measurement completion. DateTime
SurfaceContamination nextObservationTime The date and time of the next intended measurement of conditions on an aerodrome surface. DateTime
SurfaceContamination isFurtherTotalClearanceExpected Indicates that further total clearance of an aerodrome surface with contamination is expected. Boolean
SurfaceContamination isExtremeDesposit Indication that the surface contamination has extreme consequences. Boolean
SurfaceContamination isEstimatedSurfaceFrictionUnreliable Indication that the estimated surface friction is unreliable and is not reported. Boolean
SurfaceContamination hasObscuredLights Indicates that the surface lights are obscured by surface contamination. Boolean
SurfaceContamination furtherClearanceTime The time when it is expected to complete further clearance of an aerodrome surface with contamination. DateTime
SurfaceContamination frictionDevice The type of equipment used to determine the friction coefficient of an aerodrome surface with contamination. CodeFrictionDeviceType
SurfaceContamination frictionEstimation A qualitative estimate of the friction on an aerodrome surface with contamination. CodeFrictionEstimateType
SurfaceContamination frictionCoefficient The average ratio of the weight of an object being moved along an aerodrome surface with contamination and the force that maintains contact between the object and that surface. Decimal
SurfaceContamination depth The depth of the contamination on the surface. ValDistanceType
SurfaceContamination - Presence or removal of hazardous conditions on aerodrome movement areas due to snow, ice, slush, water. -
SurfaceCharacteristics weightSIWL The maximum calculated load on each tire of a landing gear assembly that a movement area surface can support. ValMassType
SurfaceCharacteristics weightAUW The maximum total value of the weight of an aircraft that a movement area surface may support, regardless of the landing gear configuration of the aircraft. ValMassType
SurfaceCharacteristics tyrePressureSIWL The maximum aircraft tire pressure that a movement area surface can support. ValPressureType
SurfaceCharacteristics surfaceCondition The quality of the surface of an aerodrome surface. CodeSurfaceConditionType
SurfaceCharacteristics preparation The preparation technique applied to a surface composition. CodeSurfacePreparationType
SurfaceCharacteristics pavementTypePCN The pavement behaviour (rigid or flexible) used for determining the Pavement Classification Number (PCN). CodePCNPavementType
SurfaceCharacteristics pavementSurfaceClassification A classification of airfield pavement surfaces for Airport Obstruction Charts. CodePavementSurfaceClassificationType
SurfaceCharacteristics pavementSubgradePCN An indication of the pavement subgrade strength related to the Pavement Classification Number (PCN). CodePCNSubgradeType
SurfaceCharacteristics maxTyrePressurePCN The maximum allowable tire pressure category related to the Pavement Classification Number (PCN). CodePCNTyrePressureType
SurfaceCharacteristics evaluationMethodPCN The method used to rate a runway pavement. CodePCNMethodType
SurfaceCharacteristics composition The type of the predominant material of which a surface of the movement area is composed. CodeSurfaceCompositionType
SurfaceCharacteristics classPCN The bearing strength of a pavement for unrestricted operations. Decimal
SurfaceCharacteristics classLCN A value which denotes the peak bearing moment the surface can handle repeatedly without shortening its service life. Decimal
SurfaceCharacteristics - The characteristics of an aerodrome surface. -
State airspace Airspace located within the state borders. Airspace
State city A city belonging to the state. City
State border The border of the state. GeoBorder
State role Role of a Country with respect to Nas. CodeNasRoleType
State isEcacState Indicates if the Country is one of the ECAC states. Boolean
State icaoNationalityLetters Nationality letters as defined by ICAO. CodeICAONationalityLettersType
State iataCountryCode Country codes as defined by IATA and ISO. CodeIATACountryCodeType
State - An internationally recognized geographic entity that provides air traffic service. -
StartUpClearance departure Operations for which the start-up clearance applies. DepartureOperations
StartUpClearance time Time at which the Start-Up of the aircraft engines is approved. DateTimeWithPlanningType
StartUpClearance startUpApprovalRequestTime Time the pilot requests start up clearance. DateTimeWithPlanningType
StartUpClearance - Approval from air traffic control to proceed with the Start-Up. -
StartUp departure Operations for which the start-up is executed. DepartureOperations
StartUp time Time at which the aircraft starts up. DateTimeWithPlanningType
StartUp - The start up of the aircraft engines by the flight crew upon the ATC approval. -
StandMarking markedStand Aircraft stand marked by the aircraft stand marking. AircraftStand
StandMarking aircraftStandMarkingType The type of aircraft stand marking. CodeAircraftStandMarking
StandMarking - A symbol or group of symbols displayed on the surface of the Aircraft Stand. -
StandardLevelTable name A code identifying the table of discrete cruising levels. CodeLevelTableDesignatorType
StandardLevelTable isStandardICAO An indication whether the table is according to the ICAO SARPS. Boolean
StandardLevelTable - A table of consecutive cruising levels described under vertical separation criteria limited by an upper and lower level and used by General Air Traffic. -
StandardLevelSector applicableAirspace The airspace into which the standard level sector applies. Airspace
StandardLevelSector applicableLevelColumn The standard level column for which the standard level sector applies. StandardLevelColumn
StandardLevelSector toTrack The end angle of the sector relative to the North. Angle
StandardLevelSector fromTrack The start angle of the sector relative to the North. Angle
StandardLevelSector flightRule A code indicating the flight rules observed by the aircraft. CodeFlightRulesType
StandardLevelSector angleType A code indicating the direction of the zero bearing. CodeNorthReferenceType
StandardLevelSector - The general rule by which standard level columns are used in a national airspace or within a region. -
StandardLevelColumn levelTable The standard level table that the standard level column belongs to. StandardLevelTable
StandardLevelColumn uom The unit of measure used by the column. CodeUomLengthType
StandardLevelColumn standardCruisingLevel A specified cruising level, part of a column within a table of discrete cruising levels used by General Air Traffic. ValVerticalDistanceType
StandardLevelColumn series A code identifying the column. CodeLevelSeriesType
StandardLevelColumn isRvsmApplied Indication that reduced vertical separation minima is applied in the column. Boolean
StandardLevelColumn - A column of consecutive cruising levels within a standard level table. -
StandardInstrumentDeparture departureClearance A departure clearance authorising a flight to fly the standard instrument departure. DepartureClearance
StandardInstrumentDeparture departure Operations for which the SID is used. DepartureOperations
StandardInstrumentDeparture isContingencyRoute Indication whether the standard instrument departure is a contingency route. Boolean
StandardInstrumentDeparture designator The designator of the SID. CharacterString
StandardInstrumentDeparture - A designated instrument flight rule (IFR) departure route linking the aerodrome or a specified runway of the aerodrome with a specified significant point, normally on a designated ATS route, at which the en-route phase of a flight commences. -
StandardInstrumentArrival designator The designator of the STAR. CharacterString
StandardInstrumentArrival - A designated instrument flight rule (IFR) arrival route linking a significant point, normally on an ATS route, with a point from which a published instrument approach procedure can be commenced. -
SSRCode modeSIdentifier The ICAO aircraft address used in Mode S. AircraftAddress
SSRCode status The status of the SSR code. CodeSSRCodeStatusType
SSRCode modeSType Type of mode S CodeModeSType
SSRCode mode The surveillance system used for the SSR code. CodeSSRModeType
SSRCode codeCategory The category of code according to the type of flight. CodeSSRCategoryType
SSRCode code Four numerics giving the SSR code assigned to the aircraft by ATS. CharacterString
SSRCode - The number assigned to a particular multiple pulse reply signal transmitted by a transponder in Mode A or Mode C. -
SpeedRangeType upper The upper limit of the speed range. ValSpeedType
SpeedRangeType lower The lower limit of the speed range. ValSpeedType
SpeedRangeType - The area of variation of a speed between upper and lower limits. -
SpeedConstraint - A restriction brought to the speed component of the trajectory of an aircraft. -
SpecialNavigationSystem responsibleOrganisation The organisation responsible for the equipment. Organisation
SpecialNavigationSystem station SpecialNavigationStation which provides a service in the SpecialNavigationSystem chain SpecialNavigationStation
SpecialNavigationSystem type A code indicating the type of special navigation system. CodeSpecialNavigationSystemType
SpecialNavigationSystem name The textual name of the chain of a special navigation system. CharacterString
SpecialNavigationSystem designator The designator of a special navigation system chain. CharacterString
SpecialNavigationSystem - Wide area (worldwide) navigation systems based on a chain of land or maritime stations providing radio frequency signals which can be used by airborne equipment to determine at least, the mobile two-dimensional position. -
SpecialNavigationStationStatus operationalStatus The operational status of the special navigation station. CodeStatusNavaidType
SpecialNavigationStationStatus - Information about the status of the special navigation station. -
SpecialNavigationStation responsibleOrganisation The organisation responsible for the station. Organisation
SpecialNavigationStation systemChain A special navigation system chain to which the station belongs. SpecialNavigationSystem
SpecialNavigationStation availability The operational status of the special navigation station. SpecialNavigationStationStatus
SpecialNavigationStation type A code indicating the type of service within the chain. CodeSpecialNavigationStationType
SpecialNavigationStation name The textual name of the station. CharacterString
SpecialNavigationStation frequency The value of the emission frequency. ValFrequencyType
SpecialNavigationStation emission A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. CodeRadioEmissionType
SpecialNavigationStation - A land based station of a special navigation system. -
SpecialDate organisation The organisation that observes the special date. Organisation
SpecialDate type The kind of special date. CodeParticularDayType
SpecialDate name The name by which the date is known by the public (especially for public holidays). CharacterString
SpecialDate dateYear The year concerned. Date
SpecialDate dateDay The calendar date concerned. Date
SpecialDate - A calendar date that has a special meaning for a particular state or organisation. -
SpaceWeather - The physical and phenomenological state of the natural space environment, including the Sun and the interplanetary and planetary environments. -
SolarRadiation solarRadiatiionStormLevelScale The correlation of solar radiation storm related space weather events with their likely effects on technological systems. CodeSpaceWeatherScaleType
SolarRadiation solarRadiationProtonFlux The amount of solar energetic protons passing through a specified area in a given time period. ValParticleFluxType
SolarRadiation - Electromagnetic radiation emitted by the Sun with a spectrum close to the one of a black body with a temperature of 5770 K. The radiation peaks in visible wavelengths. When compared to the terrestrial radiation it is often referred to as shortwave radiation. -
SolarFlare xRayFlux The amount of solar x-rays passing through a specified area in a given time period. ValEnergyFluxType
SolarFlare solarFlareRadioBlackoutScale The correlation of the radio blackout related space weather events with their likely effects on technological systems. CodeSpaceWeatherScaleType
SolarFlare - Bright eruption from the Sun's chromosphere. Solar flares are classified in terms of the area of chromosphere affected, the duration of the phenomenon, and the width of the Ha line of hydrogen, on a scale ranging from 1- (minor eruption) to 3+ (very large eruption). -
SimplifiedDirectionalFacility trueBearing The measured angle between the localizer beam and True North at the localizer antenna. Angle
SimplifiedDirectionalFacility magneticBearing The measured angle between the localizer beam and Magnetic North at the localizer antenna. Angle
SimplifiedDirectionalFacility frequency The frequency of the localizer. ValFrequencyType
SimplifiedDirectionalFacility - A radio navigation aid providing a final approach course similar to, but less precise than, that of the ILS localizer. -
SignificantPoint pointReference The location of a significant point defined using a combination of angles and distances based on the navaid system, radar system or special navigation system. PointReference
SignificantPoint designatorType The rules by which the significant point designator has been created. CodeSignificantPointDesignatorType
SignificantPoint designator The coded identifier of the significant point. CharacterString
SignificantPoint - A specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes. -
ServiceProviderCallsign language A code indicating the language in which the service is provided on a particular frequency, as associated with a particular call-sign. LanguageCode
ServiceProviderCallsign callSign The full textual service provider identification or call-sign for a particular frequency. CharacterString
ServiceProviderCallsign - Information about the operational identifier by which the provider of the service is called and the language used. -
ServiceOperationalStatus operationalStatus Indication of the operational capability of the service. CodeStatusServiceType
ServiceOperationalStatus - The operational status of the service. -
Service radioCommunication The radio frequency on which the service is provided. RadioCommunicationChannel
Service groundCommunication The point of contact on the ground for the service. ContactInformation
Service serviceProvider The unit that provides the service. Unit
Service availability The operational status of the service. ServiceOperationalStatus
Service callSign The callsign of the unit providing the service. ServiceProviderCallsign
Service rank The order of priority of the service, such as primary" or "alternate". " CodeFacilityRankingType
Service name A free text name by which the service is identified. CharacterString
Service isCompliantICAO A code indicating whether the service is compliant with the ICAO standards and recommended practices specified for this type of service. Boolean
Service flightOperations The destination (arriving, departing, etc.) of the flights for which the information is provided. CodeFlightServiceAvailabilityType
Service - The provision of tangible goods, information, instructions or guidance. -
SeparationMode arrivalSeparationMode Arrival separation mode (distance based or time based separation) used for arrival sequence. CodeArrivalSeparationModeType
SeparationMode - An approved set of rules, procedures and conditions of application associated with separation minima. -
SeparationMinima separationMode The separation mode with which the separation minima are associated. SeparationMode
SeparationMinima - The minimum displacements between an aircraft and a hazard which maintain the risk of collision at an acceptable level of safety. -
SegmentLeg aircraftCategory The aircraft category for which the segment leg is valid. AircraftCategory
SegmentLeg startTerminalSegmentPoint The point used to indicate the beginning of a segment. InfrastructurePoint
SegmentLeg endTerminalSegmentPoint The point used to indicate the end of a segment. InfrastructurePoint
SegmentLeg arcCentre The center point used to define an arc. InfrastructurePoint
SegmentLeg holding Established holding used on a procedure. HoldingProcedure
SegmentLeg angle The angle defined to limit aircraft trajectory. AngleIndication
SegmentLeg designSurface An evaluation area used when designing a procedure segment to insure safety of aircraft. ObstacleAssessmentArea
SegmentLeg distance The distance defined to limit aircraft trajectory. DistanceIndication
SegmentLeg verticalAngle The vertical climb angle of the aircraft on the procedure leg. Angle
SegmentLeg upperLimitAltitude The upper limit altitude. ValVerticalDistanceType
SegmentLeg turnDirection The direction of the turn. CodeDirectionTurnType
SegmentLeg speedReference A code indicating the reference system for a speed value. CodeSpeedReferenceType
SegmentLeg speedLimit The value of the speed limit on the procedure leg. ValSpeedType
SegmentLeg speedInterpretation Indication how the speed attribute of a procedure leg should be interpreted. CodeAltitudeUseType
SegmentLeg lowerLimitAltitude The lower limit altitude. ValVerticalDistanceType
SegmentLeg length The length of the segment. ValDistanceType
SegmentLeg legType The type of 'path and terminator' as given in ARINC Specification 424, Attachment 5, Path and Terminator. CodeSegmentPathType
SegmentLeg legPath The type of flight path. CodeLegPathType
SegmentLeg isProcedureTurnRequired Indication whether a procedure turn is required at the end of the segment leg. Boolean
SegmentLeg endConditionDesignator An indication of the event that allows identifying the end of the leg and the start of the next leg on the procedure. CodeSegmentTerminationType
SegmentLeg duration The duration of the segment. TM_Duration
SegmentLeg courseType A code indicating the type of course to be observed. CodeCourseType
SegmentLeg courseDirection The flight direction to/from the navaid providing the course guidance. CodeRelativeDirectionType
SegmentLeg course The value of the course angle. Angle
SegmentLeg bankAngle The recommended bank angle of the aircraft on the turn. Angle
SegmentLeg altitudeOverrideATC Alternate altitude when directed by Air Traffic Control. ValVerticalDistanceType
SegmentLeg altitudeInterpretation A code indicating how the altitude attributes of a procedure leg should be interpreted. CodeAltitudeUseType
SegmentLeg - A part of an instrument or visual flight procedure defined by two consecutive significant points. -
SecondarySurveillanceRadar transponder The transponder mode. CodeTransponderType
SecondarySurveillanceRadar isMonopulse Indication whether the SSR is monopulse radar. Boolean
SecondarySurveillanceRadar isAutonomous Indication whether the SSR is autonomous. Boolean
SecondarySurveillanceRadar - A surveillance radar system which uses transmitters/receivers (interrogators) and transponders. -
SearchAndRescueService clientAirspace The airspace where the search and rescue service is available. Airspace
SearchAndRescueService clientRoute The route for which the search and rescue service is provided. RoutePortion
SearchAndRescueService type The type of search ad rescue service provided. CodeServiceSARType
SearchAndRescueService - The performance of distress monitoring, communication, coordination and search and rescue functions, initial medical assistance or medical evacuation, through the use of public and private resources, including cooperating aircraft, vessels and other craft and installations. -
SeaplaneRampSite seaplaneLandingArea The SeaplaneLandingArea associated with the SeaplaneRampSite SeaplaneLandingArea
SeaplaneRampSite guidanceLine A centreline providing guidance on the seaplane ramp. SeaplaneRampCentreline
SeaplaneRampSite width A measurement of the width of the Seaplane Ramp Site. ValDistanceType
SeaplaneRampSite slope A measurement of the slope of the Seaplane Ramp Site. ValDistanceType
SeaplaneRampSite name Any commonly used name associated with the Seaplane Ramp Site. CharacterString
SeaplaneRampSite - Ramps specifically designed to transit seaplanes from land to water and vice versa. -
SeaplaneRampCentreline name Any commonly used name associated with the Seaplane Ramp Centerline. CharacterString
SeaplaneRampCentreline length The length measurement of the Seaplane Ramp Centerline from the water to the shoreline. ValDistanceType
SeaplaneRampCentreline - The centerline of ramps specifically designed to transit seaplanes to or from land or water. -
SeaplaneLandingArea associatedAerodrome The aerodrome the seaplane landing area is associated with. Aerodrome
SeaplaneLandingArea anchorageArea An anchorage area at the seaplane landing area. AnchorageArea
SeaplaneLandingArea dockingArea A docking area used by the seaplane landing area. DockingArea
SeaplaneLandingArea dockSite Seaplane landing area dock site. FloatingDockSite
SeaplaneLandingArea availability The operational status of the seaplane landing area. ManoeuvringAreaAvailability
SeaplaneLandingArea markingBuoy A buoy used to mark the SeaplaneLandingArea MarkingBuoy
SeaplaneLandingArea taxiChannel A taxi channel used at the seaplane landing area. TaxiChannel
SeaplaneLandingArea turningBasin A turning basin used at the seaplane landing area. TurningBasin
SeaplaneLandingArea waterLaneEnd A water lane end used for take-off and landing. WaterLaneEnd
SeaplaneLandingArea rampSite Landing area ramp site location. SeaplaneRampSite
SeaplaneLandingArea width The overall width measurement of the seaplane landing area to the nearest 5 feet. ValDistanceType
SeaplaneLandingArea tidalRange The calculated height difference between the mean low tide and the mean high tide. ValDistanceType
SeaplaneLandingArea name Name of the feature water body (river/lake). CharacterString
SeaplaneLandingArea length The overall length measurement of the seaplane landing area to the nearest 5 feet. ValDistanceType
SeaplaneLandingArea currentFlowRate The measured current flow rate in the Water Operating Area. ValSpeedType
SeaplaneLandingArea currentFlowCardinalDirection Code indicating the cardinal compass location of the turning basin from centroid of the water lane end. CodeCompassPointType
SeaplaneLandingArea coordinatedUseActivityLevel The amount of activity based on percentage of daily use of the primary coordinated use type. If coordinated use type is multiple provide the largest activity level of the single most expected activity. Integer
SeaplaneLandingArea coordinatedUse The primary coordinated use of the waterway. CodeWaterOperatingAreaCoordinatedUseType
SeaplaneLandingArea - A defined area on water at an aerodrome prescribed for the landing and take-off of seaplanes. -
SeaCondition sea The sea which is subject to observation or forecast. Sea
SeaCondition seaState The state of agitation of the sea resulting from various factors such as wind, swell, currents, angle between swell and wind, etc. CodeSeaStateType
SeaCondition - Weather observations or forecasts over a defined area of sea. -
Sea - Large body of (salt-) water which can have a high meteorological impact on air-traffic taking place above it. -
SatelliteWeatherObservingSystem weatherSatelliteOrbitType The weather satellite's orbit. CodeWeatherSatelliteOrbitType
SatelliteWeatherObservingSystem - Weather satellites transmit visible imagery for daytime observing, infrared photos for both day and night observing and water vapor imagery that identify locations of moist and dry air (important for thunderstorm forecasting). Satellite imagery and data are also detection sources of convection, volcanic ash, ceiling, and fog products used in flight planning. -
SafeAltitudeAreaSector sectorDefinition A portion of a circle. CircleSector
SafeAltitudeAreaSector significantObstacle The obstacle that controls the altitude definition of the sector. Obstruction
SafeAltitudeAreaSector bufferWidth Width of the secondary area used to evaluate the lowest usable altitude for obstacle assessment. ValDistanceType
SafeAltitudeAreaSector - Subdivision of the Minimum Sector Altitudes to allow for lower altitudes. -
SafeAltitudeArea centrePoint The point used to build the safe altitude area. InfrastructurePoint
SafeAltitudeArea location The localisation of the safe altitudes area at a specific aerodrome. Aerodrome
SafeAltitudeArea sector A subdivision of the safe altitude area designed to provide the lowest altitude possible and maintain safety. SafeAltitudeAreaSector
SafeAltitudeArea safeAreaType The type of area. CodeSafeAltitudeType
SafeAltitudeArea - A set of Minimum Sector Altitudes which completely describe an area centred on a significant point, usually contained within a sector of 46km (25NM) radius. -
RunwayVisualRangeSystem rvr The RVR provided by the runway visual range system. RunwayVisualRange
RunwayVisualRangeSystem readingPosition The position along the runway direction for which the Runway Visual Range (RVR) reading is provided. CodeRVRReadingType
RunwayVisualRangeSystem - A meteorological equipment providing information about the distance over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the lights delineating the runway or identifying its centre line. -
RunwayVisualRange associatedRunwayDirection The runway direction for which the RVR is specified. RunwayDirection
RunwayVisualRange rvrValueInterpretation The relational operator that can be used for interpreting the RVR value, for instance in order to express a mean RVR of at least 2000 meters (ABOVE 2000 meters). CodeValueInterpretationType
RunwayVisualRange rvrValue Value of the Runway Visual Range. ValDistanceType
RunwayVisualRange rvrTendency When instrumented systems are used for the assessment of runway visual range, the variations in runway visual range during the 10-minute period immediately preceding the observation. CodeRVRTendencyType
RunwayVisualRange - The range over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the lights delineating the runway or identifying its centre line. -
RunwaySectionContamination contaminatedRunway The contaminated runway. Runway
RunwaySectionContamination section Indicates the part of the runway that is affected. This supports indicating the contamination information on each third of the runway length, starting from the threshold of the runway direction having the lower designation number. CodeRunwaySectionType
RunwaySectionContamination - The presence or removal of hazardous conditions due to snow, ice, slush, water, etc. on a section of the runway surface. -
RunwaySafetyArea determinationDate The date the RSA determination was approved. DateTime
RunwaySafetyArea determination A formal declaration of the RSA condition with respect to standards and any requirement improvements. CharacterString
RunwaySafetyArea - A defined surface surrounding the runway prepared or suitable for reducing the risk of damage to airplanes in the event of an undershoot, overshoot, or excursion from the runway. -
RunwayProtectAreaLightSystem lightedArea The protection area lit by the runway project area light system. RunwayProtectArea
RunwayProtectAreaLightSystem position An indication of the part of the runway served by the runway protect area lighting system. CodeProtectAreaSectionType
RunwayProtectAreaLightSystem - The lighting for the runway protect area. -
RunwayProtectArea protectedRunwayDirection The runway direction protected by the protection area. RunwayDirection
RunwayProtectArea runwayElement The runway element which contains the runway protect area. RunwayElement
RunwayProtectArea runwayProtectAreaLightSystem The light system provided for a runway protect area. RunwayProtectAreaLightSystem
RunwayProtectArea type A type of runway protect area. CodeRunwayProtectionAreaType
RunwayProtectArea status The operational status of an aerodrome movement area, as a category. CodeStatusOperationsType
RunwayProtectArea name The name of the Runway Protection Area. CharacterString
RunwayProtectArea - An area situated in the vicinity of a runway or provided to protect aircraft during manoeuvring, take-off and landing operations. -
RunwayMarking runwayCentrelinePoint The runway centreline point marked. InfrastructurePoint
RunwayMarking markedRunway Runway that is marked. Runway
RunwayMarking protectedRunway The runway protected by the runway markings. Runway
RunwayMarking runwayBlastPad TThe runway blast pad the runway markings. RunwayBlastPad
RunwayMarking landingDirection The runway direction marked by the runway markings. RunwayDirection
RunwayMarking runwayElement The runway element having the runway markings. RunwayElement
RunwayMarking protectedTaxiway The taxiway protected by the runway markings. Taxiway
RunwayMarking runwayProtectArea The runway protect area marked by the runway markings. RunwayProtectArea
RunwayMarking runwayMarking A section of runway marking which forms part of a larger marking. RunwayMarking
RunwayMarking runwayMarkingType The type of runway marking. CodeRunwayMarkingType
RunwayMarking - A symbol or group of symbols displayed on the surface of the runway in order to convey aeronautical information. -
RunwayExitLine runway The runway served by the exit line Runway
RunwayExitLine exitType Type of runway exit. CodeRunwayExitType
RunwayExitLine - Guidance line painted on the runway exit. -
RunwayElement runwayCentrelinePoint The runway centreline point. InfrastructurePoint
RunwayElement guidanceLine A guidance line associated with the runway element. GuidanceLine
RunwayElement availability The operational status of the runway element. ManoeuvringAreaAvailability
RunwayElement associatedRunway Runway associated with the element. Runway
RunwayElement runwayDirection The RunwayDirection whose start is characterised by the RunwayElement RunwayDirection
RunwayElement taxiwayElement A taxiway element associated with the runway element. TaxiwayElement
RunwayElement runwayElement A runway element associated with this runway element. RunwayElement
RunwayElement surfaceProperties Surface characteristics of the runway element. SurfaceCharacteristics
RunwayElement width The width of the runway element. ValDistanceType
RunwayElement type The type of runway element. CodeRunwayElementType
RunwayElement length The length of the runway element. ValDistanceType
RunwayElement gradeSeparation An indicator of the placement of the element at a different height from another element. CodeGradeSeparationType
RunwayElement - A portion of a runway. -
RunwayDirectionLightSystem associatedRunwayDirection Runway direction associated with the runway direction light system. RunwayDirection
RunwayDirectionLightSystem runwayStatusLightType The type of runway status lights (RWSL). CodeRunwayStatusLightsType
RunwayDirectionLightSystem runwayEdgeLightingType The type of runway edge lighting. CodeRunwayEdgeLightingType
RunwayDirectionLightSystem position A indication of the part of the runway served by the runway direction lighting system. CodeRunwaySectionType
RunwayDirectionLightSystem inRunwayLightingType The type of In-Runway lighting. CodeInRunwayLightingType
RunwayDirectionLightSystem category The category of runway lights. CodeRunwayLightingCategoryType
RunwayDirectionLightSystem - The lighting system provided for a landing and take-off direction, including the stopway lights. -
RunwayDirection suitableAircraft Aircraft for which this runway direction is suitable. AircraftType
RunwayDirection runwayCentrelinePoint The centre line point of the runway direction. InfrastructurePoint
RunwayDirection capacity The capacity of the runway direction. Capacity
RunwayDirection approachLightingSystem The LightSystem provided for an RunwayDirection ApproachLightingSystem
RunwayDirection arrestingGear The arresting gear used on the runway direction. ArrestingGear
RunwayDirection availability The operational status of the runway direction. ManoeuvringAreaAvailability
RunwayDirection usedRunway The runway used by the runway direction. Runway
RunwayDirection runwayBlastPad A runway blast pad used on the runway direction. RunwayBlastPad
RunwayDirection dependentRunwayDirection A dependent runway direction. RunwayDirection
RunwayDirection rvr The runway visual range. RunwayVisualRange
RunwayDirection runwayProtectArea The ProtectArea protecting the RunwayDirection RunwayProtectArea
RunwayDirection runwayDirectionLightSystem The LightSystem provided for an RunwayDirection RunwayDirectionLightSystem
RunwayDirection visualGlideSlopeIndicator The VisualGlideSlopeIndicator which provides guidance for the RunwayDirection. VisualGlideSlopeIndicator
RunwayDirection navaid The navaid installed at a particular landing area. RadioNavigationService
RunwayDirection startingElement The runway element that starts the runway direction. RunwayElement
RunwayDirection trueBearingAccuracy The accuracy of the measured angle between the runway direction and true north at a given position. Angle
RunwayDirection trueBearing The measured angle between the runway direction and true north at a given position. Angle
RunwayDirection touchDownZoneSlope Touchdown zone longitudinal slope (slope of 1/3 of the runway length from threshold or first 3000 feet for runways longer than 9000 feet) for a runway direction. Decimal
RunwayDirection touchDownZoneElevationAccuracy The accuracy of the reported touch down zone elevation of runway direction. ValDistanceType
RunwayDirection touchDownZoneElevation The highest elevation of the runway touch down zone for a runway direction. ValVerticalDistanceType
RunwayDirection thresholdToThresholdGradientSlope Threshold to threshold gradient slope. Decimal
RunwayDirection precisionApproachGuidance Degree to which navigation aids provide accurate approach guidance for a runway direction. CodeInstrumentRunwayType
RunwayDirection patternVFR The direction of the VFR flight pattern at an aerodrome for a runway direction. CodeDirectionTurnType
RunwayDirection magneticBearing The measured angle between the runway direction and magnetic north at a given position. Angle
RunwayDirection isUsedForInstrumentFlightRuleProcedures Indicates that the runway is used for Instrument Flight Rule procedures. Boolean
RunwayDirection isStraightInNightOperations isStraightInNightOperations of type Boolean Definition: An indicator used to identify an approach end of a runway expected to support instrument night operations, serving approach Category A and B aircraft only. " Boolean
RunwayDirection isRightHandTrafficPattern An indicator used to identify if there is a right hand traffic pattern for the landing aircraft. Boolean
RunwayDirection isPositiveVerticalGuidance An indicator used to identify an approach end of a runway expected to accommodate approaches with vertical guidance. Boolean
RunwayDirection displacedThresholdApproachRatio The distance of the controlling obstruction from the runway end (minus 200 feet for hard surface runways) in ratio to the height of the controlling obstruction above the runway end. Scale
RunwayDirection designator A designator for one of the two possible landing and/or take-off directions of a runway or final approach and take-off area. CharacterString
RunwayDirection approachMarkingType The type of runway direction marking related to landing categories. CodeApproachMarkingType
RunwayDirection approachMarkingCondition The quality of the runway marking. CodeMarkingConditionType
RunwayDirection - One of the two possible landing and/or take-off directions of a runway or Final Approach and Take-off Area (FATO). -
RunwayDeclaredDistance runwayCentrelinePoint The runway centreline point marking the declared distance. InfrastructurePoint
RunwayDeclaredDistance type The type of a conventional operational distance declared for a runway direction. CodeDeclaredDistanceType
RunwayDeclaredDistance distanceAccuracy The accuracy of the value of a conventional operational distance declared for a runway direction. ValDistanceType
RunwayDeclaredDistance distance The conventional operational distance declared for a runway direction. ValDistanceType
RunwayDeclaredDistance - A conventional operational distance declared for a runway direction. -
RunwayContamination contaminatedRunway The contaminated runway. Runway
RunwayContamination obscuredLightsSide Indicates the side of the runway on which the lights are obscured by contamination. CodeRelativePositionType
RunwayContamination isTaxiwayAvailable An indication that there are cleared taxiways available serving that runway. Boolean
RunwayContamination isApronAvailable An indication that there are cleared aprons available serving a runway. Boolean
RunwayContamination furtherClearanceWidth Width of runway that is expected to be cleared of contamination, if less than the total width. ValDistanceType
RunwayContamination furtherClearanceLength Length of runway that is expected to be cleared of contamination, if less than the total length. ValDistanceType
RunwayContamination clearedSide Indicates that the cleared width is offset left or right of a runway centre line. CodeRelativePositionType
RunwayContamination clearedWidth Width of runway cleared of contamination, if less than the total width. ValDistanceType
RunwayContamination clearedLengthBegin The distance from the threshold of the runway direction having the lowest designator number to the point where the cleared portion starts, in case of partial clearance. ValDistanceType
RunwayContamination clearedLength Length of runway cleared of contamination, if less than the total length of the runway. ValDistanceType
RunwayContamination - The presence or removal of hazardous conditions due to snow, ice, slush, water, etc. on the runway surface. -
RunwayCondition runway The runway which is subject to observation or forecast. Runway
RunwayCondition rvr The observed or forecast runway visual range. RunwayVisualRange
RunwayCondition temperature The temperature measured by a probe under the runway surface at the touchdown (TDZ) zone. ValTemperatureType
RunwayCondition qfe Atmospheric pressure at runway threshold elevation. A pressure type altimeter calibrated in accordance with the Standard Atmosphere, when set to a QFE altimeter setting using this particular pressure value, will indicate the height above the touch-down zone of the runway. ValPressureType
RunwayCondition - Weather observations and / or forecasts related to a runway. May be defined for single or multiple runways. -
RunwayBlastPad runwayProtectArea A runway protect area associated with the runway blast pad. RunwayProtectArea
RunwayBlastPad runwayElement The runway element which contains the blast pad. RunwayElement
RunwayBlastPad usedRunwayDirection The runway direction containing the blast pad. RunwayDirection
RunwayBlastPad surfaceProperties Surface properties of the blast pad. SurfaceCharacteristics
RunwayBlastPad width The total width of the blast pad surface. ValDistanceType
RunwayBlastPad status The operational status of an aerodrome movement area related directly to the runway blast pad. CodeStatusOperationsType
RunwayBlastPad length The overall length of a barrier used to divert and/or dissipate jet and/or propeller blast. ValDistanceType
RunwayBlastPad - Specially prepared surface placed adjacent to the end of a runway to eliminate the erosive effect of the high wind forces produced by airplanes at the beginning of their take-off rolls. -
Runway overallContaminant Runway contaminant. RunwayContamination
Runway areaContaminant Area contamination of a runway. RunwaySectionContamination
Runway associatedAerodrome The aerodrome the runway is associated with. Aerodrome
Runway radarSystem Radar sytem serving the runway. RadarSystem
Runway surfaceProperties Surface characteristics of the runway. SurfaceCharacteristics
Runway touchDownLiftOff The TouchDownLiftOff area of a Runway of type FATO TouchDownLiftOff
Runway runwayMarking The Marking marked on the Runway RunwayMarking
Runway protectingTaxiHoldingPosition A TaxiHoldingPosition which prevents the entry on the Runway TaxiwayHoldingPosition
Runway runwayDirection One landing and take-off direction of a Runway RunwayDirection
Runway runwayElement The RunwayElement which belongs to the Runway RunwayElement
Runway widthStrip The physical width of the strip. ValDistanceType
Runway widthShoulder The runway shoulder width. ValDistanceType
Runway widthOffset A value specifying the lateral offset of the strip, when it is not symmetrically extended beyond the two runway edges. ValDistanceType
Runway widthAccuracy Accuracy of the value of the physical width of the runway. ValDistanceType
Runway type The type of runway. CodeRunwayType
Runway nominalWidth The declared transversal extent of the runway for operational (performance) calculations. ValDistanceType
Runway nominalLength The declared longitudinal extent of the runway for operational (performance) calculations. ValDistanceType
Runway lengthStrip The physical length of the strip. ValDistanceType
Runway lengthOffset A value specifying the longitudinal offset of the strip, when it is not symmetrically extended beyond the two runway ends. ValDistanceType
Runway lengthAccuracy Accuracy of the value of the physical length of the runway. ValDistanceType
Runway isMilitaryAssaultStrip An indicator used to identify if the runway is a military assault strip. Boolean
Runway isAbandoned An indicator that the surface is no longer in operational use, but is still physically present and visible, although usually in a degraded state. Boolean
Runway designator The designator of a runway, used to uniquely identify it at an aerodrome. CharacterString
Runway - A defined rectangular area on a land aerodrome prepared for the landing and take-off of aircraft. -
RulesProcedures affectedArea Airspace within which the rule or procedure is applicable. Airspace
RulesProcedures affectedLocation Aerodrome where the rule or procedure is effective. Aerodrome
RulesProcedures title A general heading by which the rule or procedure is usually identified in the Aeronautical Information Publications (AIP) or similar/related documents. CodeRuleProcedureTitleType
RulesProcedures content The definition of the actual content of the rule or procedure. CharacterString
RulesProcedures category An indication of the purpose of the rule or procedure. CodeRuleProcedureType
RulesProcedures - An instruction or regulation that needs to be considered by personnel involved in flight operations in relation with an aerodrome or an airspace. -
RouteTrajectorySegment procedure The procedure used by the trajectory element. Procedure
RouteTrajectorySegment route The route used by the trajectory element. Route
RouteTrajectorySegment routePortion The route portion used by the trajectory element. RoutePortion
RouteTrajectorySegment routeSegment The published route segment on which the trajectory segment is based. RouteSegment
RouteTrajectorySegment taxiInClearance The clearance giving the cleared taxi path. TaxiInClearance
RouteTrajectorySegment alternateAerodrome Alternate aerodrome applicable to this trajectory element. Aerodrome
RouteTrajectorySegment startPoint The starting point of the trajectory segment. RouteTrajectoryPoint
RouteTrajectorySegment endPoint The ending point of the route trajectory segment. RouteTrajectoryPoint
RouteTrajectorySegment specialRequirements Applicable special requirements to this trajectory element. This is an indicator that the flight is expected to be operating in accordance with regulations issued by the relevant State for aircraft operating as State aircraft, as per Article 3 of the Convention on International Civil Aviation (Doc 7300) and for aircraft operating in accordance with State regulations for non-standard flying activities, normally through the use of reserved airspace. CharacterString
RouteTrajectorySegment rateOfClimbDescent Average rate of climb and descent for the leg (ft per minute), derived from rateOfAltitudeChange of the two Waypoints delimiting the FlightSegment. Integer
RouteTrajectorySegment mainEnginesFuelBurn The amount of fuel burn of the main engines during the flight segment. Decimal
RouteTrajectorySegment type The type of TrajectorySegment. CodeRouteTrajectorySegmentType
RouteTrajectorySegment fuelBurnRate Average Fuel burn rate for the leg. Derived from the deltaFuelBurn for the WayPoints delimiting the FlightSegment. Number
RouteTrajectorySegment fuelBurn The fuelBurn for the FlightSegment, expressed in kg. Number
RouteTrajectorySegment flightRules The regulation, or combination of regulations, that governs all aspects of operations under which the pilot plans to fly that trajectory element. CodeFlightRulesType
RouteTrajectorySegment exceedLength A value used to indicate that only Direct Flight Segments (DCT) that exceed this value are concerned by a Flight Restriction. ValDistanceType
RouteTrajectorySegment estimatedElapsedTime The estimated time required to proceed from one significant point to another. TM_Duration
RouteTrajectorySegment duration Duration of the Trajectory Segment, derived from the eventTime and the eventEndTime. TM_Duration
RouteTrajectorySegment cruisingLevel The planned cruising level for the first or the whole portion of the route to be flown. Integer
RouteTrajectorySegment auxiliaryPowerUnitFuelBurn The amount of fuel burn of the auxiliary power unit usage during flight segment. Decimal
RouteTrajectorySegment assignedSpeed The True Airspeed for the first or the whole cruising portion of the flight. ValSpeedType
RouteTrajectorySegment - A portion of the flight route or trajectory. -
RouteTrajectoryPoint upstream The upstream ATC volume related to the trajectory point. Airspace
RouteTrajectoryPoint belongsTo The ATC volumes to which the point belongs to. Airspace
RouteTrajectoryPoint downstream The downstream ATC volume related to the trajectory point. Airspace
RouteTrajectoryPoint correspondingInfrastructurePoint The infrastructure point matched by the trajectory point. InfrastructurePoint
RouteTrajectoryPoint sourceSTAR The standard instrument arrival of which one of the constituting significant point is matched by the trajectory point. StandardInstrumentArrival
RouteTrajectoryPoint sourceSID The standard instrument departure of which one of the constituting significant point is matched by the trajectory point. StandardInstrumentDeparture
RouteTrajectoryPoint arrival The arrival operations which make use of the trajectory point. ArrivalOperations
RouteTrajectoryPoint aircraftState The state of the aircraft at the trajectory point. AircraftState
RouteTrajectoryPoint airspaceEntry Airspace entry that occurs at the trajectory point. AirspaceEntry
RouteTrajectoryPoint overPoint Over point event occuring at the trajectory point. OverPoint
RouteTrajectoryPoint referedOpenConstraint The reference to the open constraint closed through this trajectory point. ATMTrajectoryConstraint
RouteTrajectoryPoint lateralConstraint Type and bound of a lateral constraint. LateralConstraint
RouteTrajectoryPoint speedConstraint Type and bound of a speed constraint. SpeedConstraint
RouteTrajectoryPoint altitudeConstraint Type and bound of a vertical constraint. VerticalConstraint
RouteTrajectoryPoint timeConstraint Type and bound of a time constraint. TimeConstraint
RouteTrajectoryPoint stakeholder The stakeholder inserting the trajectory point. Unit
RouteTrajectoryPoint weatherCondition The weather condition at the trajectory point. WeatherCondition
RouteTrajectoryPoint inboundSegment The trajectory segment followed to reach the trajectory point. RouteTrajectorySegment
RouteTrajectoryPoint usage Characterizes a point of the trajectory CodeRouteTrajectoryPointUsageType
RouteTrajectoryPoint estimatedElapsedTimeFromReference Time elapsed since a point of reference. TM_Duration
RouteTrajectoryPoint distanceFromTakeOff Cumulative track distance from take-off to that trajectory point. ValDistanceType
RouteTrajectoryPoint cumulativeDistance Distance flown from a point of reference. ValDistanceType
RouteTrajectoryPoint accumulatedEstimatedElapsedTime The estimated time required from take-off to that trajectory point. TM_Duration
RouteTrajectoryPoint acceptanceStatus The status of acceptance of the trajectory point by the FDMP. CodeTrajectoryPointAcceptanceStatusType
RouteTrajectoryPoint - A significant point used in defining the flight path of an aircraft. -
RouteTrajectory route Route on which the trajectory is based. Route
RouteTrajectory flight The flight whose movement is described by the trajectory. Flight
RouteTrajectory trajectoryConstraint A trajectory constraint that restricts the planning and execution of the trajectory. ATMTrajectoryConstraint
RouteTrajectory trajectorySegment A trajectory segment being part of the trajectory. RouteTrajectorySegment
RouteTrajectory trajectoryPoint A trajectory point used for describing the trajectory. RouteTrajectoryPoint
RouteTrajectory type The type of trajectory. CodeRouteTrajectoryType
RouteTrajectory requestReference The reference of the clearance request for a 4D trajectory across an ATSU AoR. CharacterString
RouteTrajectory rejectReason The reason under which the Trajectory request is rejected. CharacterString
RouteTrajectory flightRules The category of flight rules with which the pilot intends to comply. CodeFiledFlightRulesType
RouteTrajectory dialogueStatus Status information for monitoring the progression of the dialogue. CodeTrajectoryDialogueStatusType
RouteTrajectory - The description of movement of an aircraft. -
RouteSegment airway A control area or portion thereof established in the form of a corridor. Airspace
RouteSegment startEnRouteSegmentPoint The start en-route segment point for the route segment. InfrastructurePoint
RouteSegment endEnRouteSegmentPoint The end en-route segment point for the route segment. InfrastructurePoint
RouteSegment routeFormed The route formed partly by the route segment. Route
RouteSegment availability The operational availability of the route segment. RouteAvailability
RouteSegment evaluationArea The obstacle evaluation area for the route segment. ObstacleAssessmentArea
RouteSegment widthRight The distance from the centreline of the route segment to the right edge, when considering the direction from the start point to the end point. ValDistanceType
RouteSegment widthLeft The distance from the centreline of the route segment to the left edge, when considering the direction from the start point to the end point. ValDistanceType
RouteSegment upperLimit The vertical position of the route segment ceiling. ValVerticalDistanceType
RouteSegment turnDirection The turn direction, if any, at the end of the segment in order to continue on to the next segment of the same route. CodeDirectionTurnType
RouteSegment trueTrack The initial true track. Angle
RouteSegment reverseTrueTrack The reverse initial true track. Angle
RouteSegment reverseMagneticTrack The reverse initial magnetic track. Angle
RouteSegment requiredNavigationPerformance The required navigation performance for the route portion expressed in NM. Decimal
RouteSegment pathType The type of segment path. CodeRouteSegmentPathType
RouteSegment navigationType Classification of the route portion for navigational purposes. CodeRouteNavigationType
RouteSegment minimumObstacleClearanceAltitude The minimum altitude for a defined segment of flight that provides the required obstacle clearance. ValVerticalDistanceType
RouteSegment minimumEnrouteAltitude The altitude for an en-route segment that provides adequate reception of relevant navigation facilities and ATS communications, complies with the airspace structure and provides the required obstacle clearance. ValVerticalDistanceType
RouteSegment minimumCrossingAtEnd The lowermost vertical position at the end point, when flying on the route portion in the direction indicated in the route portion usage. ValVerticalDistanceType
RouteSegment maximumCrossingAtEnd The uppermost vertical position at the end point, when flying on the route portion in the direction indicated in the route portion usage. ValVerticalDistanceType
RouteSegment magneticTrack The initial magnetic track. Angle
RouteSegment lowerLimit The vertical position of the route segment floor. ValVerticalDistanceType
RouteSegment level A code indicating if the route segment is in the upper airspace, the lower airspace or both. CodeLevelType
RouteSegment length The length of the path. ValDistanceType
RouteSegment hasSignalGap Indication of a signal gap in the segment. Boolean
RouteSegment designatorSuffix A suffix for the route designator defined in accordance with ICAO Annex 11. CodeRouteDesignatorSuffixType
RouteSegment - A route or portion of route usually flown without an intermediate stop. -
RoutePortion changeOverPoint The change over point that applies to the route portion. InfrastructurePoint
RoutePortion start The starting significant point for the route portion. InfrastructurePoint
RoutePortion intermediatePoint An intermediate significant point for the route portion. InfrastructurePoint
RoutePortion end The ending significant point for the route portion. InfrastructurePoint
RoutePortion referencedRoute The route referenced by the route portion. Route
RoutePortion flightPlanningAndATFMservice The flight planning and air traffic flow management service provided for the route portion. AirTrafficManagementService
RoutePortion distance The distance from the start of the route portion to the position where change over occurs. ValDistanceType
RoutePortion - A group of two or more consecutive segments of the same route, which have the usage and/or the same flight restrictions. -
RouteDME referencedDME The DME referenced on the route. DME
RouteDME applicableRoutePortion The route portion that the routeDME applies to. RoutePortion
RouteDME isSatisfactory Indication whether the critical DME passed satisfactory or unsatisfactory. Boolean
RouteDME isCriticalDME Indication whether the DME is critical for navigation on the route portion. Boolean
RouteDME - DME facilities that are used for a particular route for DME/DME navigation. -
RouteCondition route The route which is subject to observation or forecast. Route
RouteCondition - Weather observations and / or forecasts related to routes. -
RouteAvailability hostAirspace The Flight Information Region where the route opening/closure is located. Airspace
RouteAvailability level The airspace layer referenced by the route usage. AirspaceLayer
RouteAvailability status The availability status of the route, in the direction indicated by the direction and/or cardinalDirection. CodeRouteAvailabilityType
RouteAvailability direction The direction in which the route segment is considered when a specific usage is described. CodeDirectionType
RouteAvailability conditionalRouteType The category of the conditional route according to the Flexible Use of Airspace rules. CodeConditionalRouteType
RouteAvailability cardinalDirection The direction for which the usage is specified, expressed as compass angle. CodeCompassPointType
RouteAvailability - The operational availability of a route. -
Route airspace The airspace which protects the route Airspace
Route userOrganisation The organisation that normally generates activity on the military training route. Organisation
Route routeSegment A route segment which forms a part of the route. RouteSegment
Route type The classification of the route. CodeRouteType
Route name The name by which the route is known. CharacterString
Route multipleIdentifier A suffix for the route designator, indicating alternates for homonymous routes. CodeUpperAlphaType
Route militaryUse Indication whether the route is for exclusive use by military aircraft. CodeMilitaryStatusType
Route militaryTrainingType The type of military training activity for which the route has been designed. CodeMilitaryTrainingType
Route locationDesignator A description of the area in which the designated route is situated. CharacterString
Route internationalUse yA code indicating if the route segment is international or domestic. CodeRouteOriginType
Route flightRule Indication of the flight rules to be observed by aircraft. CodeFlightRulesType
Route designatorSecondLetter The letter of the route designator, which may have special significance with regard to the route usage limitations, depending on the region. CodeRouteDesignatorLetterType
Route designatorPrefix A prefix for the route designator, indicating whether the route is upper ATS, reserved for helicopters or reserved for supersonic flights. CodeRouteDesignatorPrefixType
Route designatorNumber The number of the route designator. Integer
Route - A specified route designed for channeling the flow of traffic as necessary for the provision of air traffic service (ATS) from the end of the take-off and initial climb phase to the commencement of the approach and landing phase. -
Road associatedAerodrome The aerodrome the road is associated with. Aerodrome
Road accessibleStand Aircraft stand that is accessed via the road. AircraftStand
Road surfaceProperties Surface characteristics of the road. SurfaceCharacteristics
Road type Type of road at an aerodrome. CodeRoadType
Road status An indicator of the operational status of a service road. CodeStatusOperationsType
Road isAbandoned An indicator that a road is no longer in operational use, but it is still physically present and visible, although usually in a degraded state. Boolean
Road designator The designator or name of the service road. CharacterString
Road - An established surface route on the movement area meant for the exclusive use of vehicles. -
Ridge side The side of the runway where the ridge of deposited material is located. CodeRelativePositionType
Ridge distance Distance of the ridge of deposited material from the edge of the movement area. ValDistanceType
Ridge depth Height of the ridges of deposited material. ValDistanceType
Ridge - Ridges of deposited material to the left or right of the runway, relative to the runway direction with the lowest designation number. -
Reflector type The type of reflector. CodeReflectorType
Reflector - A reflector used with a precision approach radar. -
Ranked4DTrajectories desired4DTrajectory One of the desired trajectory that is part of the ranked listing of preferred trajectories. RouteTrajectory
Ranked4DTrajectories - A series of desired 4D trajectories, with tolerances supplied if necessary by the airspace user to define when the next ranked trajectory should be used. -
RadioNavigationService servedAerodrome The aerodrome served by the radio navigation service. Aerodrome
RadioNavigationService runwayDirection The runway direction served by the radio navigation service. RunwayDirection
RadioNavigationService touchDownLiftOff Particular landing area at which the radio navigation service is installed. TouchDownLiftOff
RadioNavigationService radioNavaidEquipment The component of the radio navigation service. RadioNavigationAid
RadioNavigationService availability The operational status of the radio navigation service. NavaidOperationalStatus
RadioNavigationService authority The authority repsonsible for the service. Organisation
RadioNavigationService type The type of the radio navigation service. CodeNavaidServiceType
RadioNavigationService purpose Indication of the intended usage of the radio navigation service. CodeNavaidPurposeType
RadioNavigationService name The long name given to the composite radio navigation service. CharacterString
RadioNavigationService isFlightChecked Indication whether the radio navigation service has been flight checked. Boolean
RadioNavigationService designator The coded identifier given to the radio navigation service. CharacterString
RadioNavigationService - A service providing guidance information or position data for the efficient and safe operation of aircraft supported by one or more radio navigation aids. -
RadioNavigationAid supportedAirspace The airspace through which the Radio Navigation Aid supports navigation. Airspace
RadioNavigationAid referenceRunwayCentreLinePoint The RunwayCentrelinePoint from which the relative distance of the NavaidEquipment is computed InfrastructurePoint
RadioNavigationAid referenceRunwayCentreLinePoint missing data InfrastructurePoint
RadioNavigationAid authority The organisation responsible for the equipment. Organisation
RadioNavigationAid navaid The Navaid composed of the NavaidEquipment RadioNavigationService
RadioNavigationAid monitoring Radio navigation aid monitoring information. NavaidEquipmentMonitoring
RadioNavigationAid availability The operational status of the radio navigation aid. NavaidOperationalStatus
RadioNavigationAid name The long name given to the radio navigation aid. CharacterString
RadioNavigationAid magneticVariationAccuracy The accuracy of the magnetic variation. Angle
RadioNavigationAid magneticVariation The measured angle between Magnetic North and True North at the VOR, at the time the magnetic variation was measured. Angle
RadioNavigationAid isMobile Indication whether the radio navigation aid is mobile. Boolean
RadioNavigationAid isFlightChecked Indication whether the radio navigation aid has been flight checked. Boolean
RadioNavigationAid emissionClass A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. CodeRadioEmissionType
RadioNavigationAid designator The identifying code given to the radio navigation aid. CharacterString
RadioNavigationAid dateMagneticVariation The year the magnetic variation was measured. Date
RadioNavigationAid - Any electronic system which provides information to be used by the pilot or aircraft navigation systems for position determination or flight path guidance. -
RadioFrequencyArea sector A non graphical definition describing a portion of a circle associated with the radio frequency area. CircleSector
RadioFrequencyArea par The precision approach radar affected by the signal limitation. PrecisionApproachRadar
RadioFrequencyArea specialNavigationStation A land based station of a special navigation system. SpecialNavigationStation
RadioFrequencyArea ssr The secondary surveillance radar affected by the signal limitation. SecondarySurveillanceRadar
RadioFrequencyArea radioNavaidEquipment The component of a system used for air navigation. RadioNavigationAid
RadioFrequencyArea frequency A frequency in the range within which radio waves may be transmitted. RadioCommunicationChannel
RadioFrequencyArea type A code indicating the type of radio navigation aid limitation. CodeRadioFrequencyAreaType
RadioFrequencyArea signalType The type of signal that is affected by the usage limitation. CodeRadioSignalType
RadioFrequencyArea angleScallop The value of the scalloping angle, which may affect the radial reading of a VOR or TACAN in plus or minus. Angle
RadioFrequencyArea - A limitation, such as coverage, usability, etc., of a radio navigation aid or service frequency. -
RadioCommunicationOperationalStatus operationalStatus The operational capability of the radio communication channel. CodeStatusServiceType
RadioCommunicationOperationalStatus - Information about the operational status of the radio communication channel. -
RadioCommunicationChannel service The service provided on the radio frequency Service
RadioCommunicationChannel availability The operational status of the radio communication channel. RadioCommunicationOperationalStatus
RadioCommunicationChannel trafficDirection Indication of the eventual directionality of the communication channel. CodeCommunicationDirectionType
RadioCommunicationChannel rank A code indicating the role of the communication channel. CodeFacilityRankingType
RadioCommunicationChannel mode The type of communication channel. CodeCommunicationModeType
RadioCommunicationChannel logon A specified code used for data link, for instance for logon to an ATS unit. CharacterString
RadioCommunicationChannel isSelectiveCall A code indicating whether a frequency treats selective call"." Boolean
RadioCommunicationChannel isFlightChecked Indication whether the communication channel has been flight checked. Boolean
RadioCommunicationChannel frequencyReception The value of the reception frequency. ValFrequencyType
RadioCommunicationChannel frequencyTransmission The value of the transmission frequency. ValFrequencyType
RadioCommunicationChannel emissionType A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. CodeRadioEmissionType
RadioCommunicationChannel - A radio frequency band of sufficient width and associated identification data used for one- or two-way communication from or to a transmitter on the ground or in the air. -
RadarSystem aerodrome The aerodrome on which the equipment is located. Aerodrome
RadarSystem servedRunway Runway served by the radar system. Runway
RadarSystem radarEquipment The equipment that make up the component(s) of the radar system. RadarEquipment
RadarSystem office The office responsible for the equipment. Organisation
RadarSystem type The type of service for the radar system. CodeRadarServiceType
RadarSystem model The model of the equipment. CharacterString
RadarSystem isGeneralTerrainMonitor Indication whether aircraft clearance above the highest terrain and obstacles in a general area is monitored. Boolean
RadarSystem broadcastIdentifier The identifier broadcasted for a secondary radar. CharacterString
RadarSystem - One or more radar equipments providing radar services. -
RadarEquipment radarSystem RadarSystem composed of the RadarEquipment RadarSystem
RadarEquipment contact The contact information of the group or individual associated with the radar equipment. ContactInformation
RadarEquipment standbyPower A description of how the component is powered if the primary power fails. CodeStandbyPowerType
RadarEquipment serialNumber Serial number of the equipment. CharacterString
RadarEquipment rangeAccuracy Accuracy of the applicable range of the equipment to detect aircraft. ValDistanceType
RadarEquipment range The applicable range of the equipment to detect aircraft. ValDistanceType
RadarEquipment name The name of the equipment. CharacterString
RadarEquipment magneticVariationAccuracy Accuracy of the magnetic variation. Angle
RadarEquipment magneticVariation The angular difference between True North and Magnetic North measured at a given position and date. Angle
RadarEquipment isMovingTargetIndicatorAvailable Indication whether a Moving Target Indicator (MTI) is available for the component. Boolean
RadarEquipment isForSpecialUseOnly Indication whether the equipment is for special use procedures only. Boolean
RadarEquipment isForSpecialAircraftOnly Indication whether the equipment is to be only used for certain type of aircraft that are capable of using it. Boolean
RadarEquipment isForMilitaryUseOnly Indication whether the equipment is for military use only. Boolean
RadarEquipment isDualChannel Indication whether the radar equipment has dual frequency. Boolean
RadarEquipment isDigital Indication whether the radar equipment is digital. Boolean
RadarEquipment dateMagneticVariation The date at which the magnetic variation had this value. Date
RadarEquipment - A physical radar equipment. -
RadarComponent collocationGroup A number identifying the collocation group to which the radar equipment aid belongs. Integer
RadarComponent - The use of a radar equipment as a component of the radar service provided by a radar system. -
Qualification aircraftEquipment AircraftEquipment for which the air crew is qualified. AircraftEquipment
Qualification qualificationType The type of qualification. CodeFlightCrewQualificationType
Qualification isQualified Indication whether the air crew has this qualification. Boolean
Qualification - A particular equipment or procedure qualification. -
ProcedureTransition transitionLeg One segment of a transition. SegmentLeg
ProcedureTransition departureRunwayDirection Runway direction that may be referenced from the departure. RunwayDirection
ProcedureTransition departureTouchDownLiftOff Touchdown and lift-off area that may be referenced from the departure. TouchDownLiftOff
ProcedureTransition vectorHeading A heading provided for use, when a departure is designed to incorporate radar vectors at the termination point, in the event ATC instructions are not received prior to or at the termination fix. Angle
ProcedureTransition type The type of procedure transition. CodeProcedurePhaseType
ProcedureTransition instruction Operational instructions that must be observed when flying the procedure transition part. CharacterString
ProcedureTransition - A group of consecutive segments that are part of a branch on an approach procedure, SID or STAR. -
ProcedureDME dme The distance measuring equipment passing DME/DME evaluation criteria. DME
ProcedureDME segmentLeg Segment leg used for evaluating the DME. SegmentLeg
ProcedureDME isSatisfactory Indication whether the critical DME passed the DME/DME evaluation criteria. Boolean
ProcedureDME isCriticalDME Indication whether the DME is critical for navigation on a procedure segment. Boolean
ProcedureDME - DME facilities that are used for a particular segment for DME/DME navigation. -
ProcedureAvailability status Indication of the status of the procedure for flight planning/operations. CodeProcedureAvailabilityType
ProcedureAvailability - The status of the procedure for flight planning/operations. -
Procedure aircraftCategoryLimit Aircraft category limit applicable to the procedure. AircraftCategory
Procedure aircraftEquipmentLimit Aircraft equipment limit applicable to the procedure. AircraftEquipment
Procedure safeAltitude A series of minimum altitudes in the area where the procedure is executed. SafeAltitudeArea
Procedure aerodrome Aerodrome served by the procedure Aerodrome
Procedure servedTouchDownLiftOff Thetouch downl lift off served by this procedure. TouchDownLiftOff
Procedure specialNavigationSystem The navigation system on which the procedure is based. SpecialNavigationSystem
Procedure servedRunwayDirection The runway direction served by this procedure. RunwayDirection
Procedure radar The radar system on which a procedure is based. RadarSystem
Procedure radioNavigationService The radio navigation service on which the procedure is based. RadioNavigationService
Procedure flightTransition A procedure transition belonging to the procedure. ProcedureTransition
Procedure availability The operational availability of the procedure. ProcedureAvailability
Procedure informationService The service which provides information for the procedure. InformationService
Procedure name The name of the instrument procedure. CharacterString
Procedure isRNAV Indication whether the procedure is an RNAV procedure. Boolean
Procedure isFlightChecked Indication whether the procedure has been flight checked. Boolean
Procedure instruction Operational instructions, other than communication failure instructions, which must be respected when flying the procedure. CharacterString
Procedure codingStandard The set of rules followed when encoding the procedure legs. CodeProcedureCodingStandardType
Procedure designCriteria Rules used in the design of the procedure. CodeDesignStandardType
Procedure communicationFailureInstruction Operational instructions which must be observed in case of communication failure. CharacterString
Procedure - A series of predetermined manoeuvres with specified protection from obstacles. -
PrimarySurveillanceRadar type Defines the type of Primary Surveillance Radar (i.e. ASR or ARSR). CodePrimaryRadarType
PrimarySurveillanceRadar - A surveillance radar system which uses reflected radio signals. -
PrecisionApproachRadar reflector The reflector used with a PAR. Reflector
PrecisionApproachRadar slopeAccuracy The accuracy of the glideslope angle at which the PAR provides landing assistance. Angle
PrecisionApproachRadar slope The glideslope angle at which the PAR provides landing assistance. Angle
PrecisionApproachRadar precisionApproachRadarType The type of precision approach radar. CodePARType
PrecisionApproachRadar - Primary radar equipment used to determine the position of an aircraft during final approach, in terms of lateral and vertical deviations relative to a nominal approach path, and in range relative to touchdown. -
Precipitation type Description of the precipitation characteristics using a classification. CodePrecipitationType
Precipitation amount Total amount of precipitation measured over a defined period, expressed in mm/hours. Integer
Precipitation - Hydrometeor consisting of a fall of an ensemble of particles. The forms of precipitation are: rain, drizzle, snow, snow grains, snow pellets, diamond dust, hail and ice pellets. -
PostalAddress postalCode The ZIP or other postal code portion of the physical address for an organisation or individual. CharacterString
PostalAddress deliveryPoint The street address portion of the physical address for an organisation or individual. CharacterString
PostalAddress country The country name portion of the physical address for an organisation or individual. CharacterString
PostalAddress city The city portion of the physical address for an organisation or individual. CharacterString
PostalAddress administrativeArea The state or province of an organisation's or individual's physical address. CharacterString
PostalAddress - Physical address at which the organization or individual may be contacted. -
PointReference facilityAngle missing data AngleIndication
PointReference facilityDistance Distance from the facility to the significant point. DistanceIndication
PointReference significantPoint A significant point defined by a latitude and longitude and/or a combination of angle and/or distance indications. SignificantPoint
PointReference role The role of the defined point reference. CodeReferenceRoleType
PointReference postFixTolerance The error distance from the fix to the latest point where the fix may be received along the flight course. ValDistanceType
PointReference priorFixTolerance The error distance from the fix to the earliest point where the fix may be received along the flight course. ValDistanceType
PointReference fixToleranceArea The area determined by the system use accuracy of the navigation aid(s) on which the fix is based, and the distance from the facility. TwoDimensionalSurfaceType
PointReference - The location of a significant point defined using a combination of angles and distances based on the navaid system, radar system or special navigation system. -
PilotInCommand - The pilot designated by the operator, or in the case of general aviation, the owner, as being in command and charged with the safe conduct of a flight. -
PilotControlledLighting activatedGroundLighting The lighting system on the ground that may be remotely activated by the pilot. GroundLightSystem
PilotControlledLighting controlledLightIntensity The characteristics of the lighting system. LightActivation
PilotControlledLighting type Type of pilot controlled lighting service. CodePilotControlledLightingType
PilotControlledLighting standByIntensity The intensity step/level of the lighting system when not in use. CodeIntensityStandByType
PilotControlledLighting radioFrequency The radio frequency to be used by the pilot for the activation of the system. ValFrequencyType
PilotControlledLighting intensitySteps The number of intensity steps/levels for a particular type of lighting system. Integer
PilotControlledLighting duration The duration the lighting is illuminated. TM_Duration
PilotControlledLighting activationInstruction Operational instructions for controlling the lighting systems. CharacterString
PilotControlledLighting - An indication that radio control of lighting is available to provide airborne control of lights by keying the aircraft's microphone. -
Pier width The overall measured width available for the pier. ValDistanceType
Pier material A code used to identify the material(s) used in the construction of the structure. CodeVerticalStructureMaterialType
Pier length The overall measured length available for the pier. ValDistanceType
Pier - A platform extending from a shore over water and supported by piles or pillars, used to secure, protect, and provide access to ships, boats, and seaplanes. -
PassengerService type A code indicating the type of passenger facility/service available. CodePassengerServiceType
PassengerService - The availability of passenger amenities and facilities at or in the vicinity of an aerodrome. -
PassengerLoadingBridge associatedStand The aircraft stand associated with the passenger loading bridge. AircraftStand
PassengerLoadingBridge type Type of bridge used by passengers and crew to board and deplane an aircraft. CodeLoadingBridgeType
PassengerLoadingBridge name A name for the passenger boarding bridge. CharacterString
PassengerLoadingBridge - A mechanically operated, adjustable ramp to provide direct passenger access between aircraft and buildings. -
OxygenSupply type The type of oxygen supplies for aviation usage. CodeOxygenSupplyType
OxygenSupply - The type(s) of oxygen supplies available for aviation usage. -
OverPoint infrastructurePoint The infrastructure point which is overflown. InfrastructurePoint
OverPoint routeTrajectoryPoint The point of the flight route or trajectory which can match the associated infrastructure point, thus triggering the OverPoint event. RouteTrajectoryPoint
OverPoint time The time at which the fly over point event occurs. DateTimeWithPlanningType
OverPoint hasOverflightHappened Indicates whether the significant point has been actually overflown. Boolean
OverPoint delay The delay at the point. DurationWithPlanningType
OverPoint assignedSpeed Speed that the flight is requested to respect when flying over the point. ValSpeedWithBoundaryType
OverPoint assignedFlightLevel Altitude that the flight is requested to respect when flying over the point. ValAltitudeWithBoundaryType
OverPoint - The event of flying over a significant point. -
OrganisationAssociation type The kind of association between two organisations. CodeOrganisationHierarchyType
OrganisationAssociation - A type of hierarchical or associative relationship between two organisations showing ownership, supervision or membership. -
Organisation authorityType The type of authority that the organisation has for an airspace AuthorityForAirspace
Organisation militaryTrainingRoute A military training route used by the organisation. Route
Organisation aerodrome The aerodrome over which the organisation has authority. Aerodrome
Organisation radioNavaidEquipment NavaidEquipment which is under the responsibility of the OrganisationAuthority RadioNavigationAid
Organisation station The SpecialNavigationStation which is under the responsibility of the OrganisationAuthority SpecialNavigationStation
Organisation navigationSystem SpecialNavigationSystem which is under the responsibility of the OrganisationAuthority SpecialNavigationSystem
Organisation navigationService Radio navigation service provided by the organisation. RadioNavigationService
Organisation managedRadar RadarSystem which is managed by the OrganisationAuthority RadarSystem
Organisation dateReference A special date which applies in the organisation. SpecialDate
Organisation contact Contact details for the organisation. ContactInformation
Organisation supervisingUnit The Unit in charge of the supervision of the OrganisationAuthority Unit
Organisation relatedOrganisation The related organisation, authority or agency. Organisation
Organisation type An indicator of the nature of an authority in terms of its status or business role in air traffic management. CodeOrganisationType
Organisation nationalityMark A nationality symbol included in the radio call signs allocated to the State of Registry by the International Telecommunication Union. CharacterString
Organisation name The full official name of the organisation. CharacterString
Organisation military An indicator of the type of operations under the authority of the organisation. CodeMilitaryOperationsType
Organisation designator A distinguishing label, term, abbreviation or acronym used to identify an organisation, authority, agency or unit. CharacterString
Organisation commonMark A mark assigned by the International Civil Aviation Organization to the common mark registering authority registering aircraft of an international operating agency on other than a national basis. CharacterString
Organisation - A collection of people organized together into a community or other social, commercial or political structure. The group has some common purpose or reason for existence which goes beyond the set of people belonging to it, and can act as an agent. -
OperatorConfiguration colourAndMarking The colour and markings of the operator. AircraftColourAndMarking
OperatorConfiguration configurationOwner The operator which selected the configuration. AircraftOperator
OperatorConfiguration numberOfSeats The number of seats installed on the aircraft. Integer
OperatorConfiguration - Aircraft configuration established by an aircraft operator for its fleet. -
OnlineContact protocol The connection protocol to be used for accessing an contact's online resource. CharacterString
OnlineContact network The official name of the telecommunication network on which a contact's online resource is located. CodeTelecomNetworkType
OnlineContact linkage A contact's location (address) for on-line access using a Uniform Resource Locator address or similar addressing scheme. CharacterString
OnlineContact eMail The address of the electronic mailbox of the responsible organisation or individual. CharacterString
OnlineContact - On-line or Network information that can be used to contact the individual or organisation, including eMail address and web site page. -
Oil category A code indicating a category of oil used in aircraft. CodeOilType
Oil - The type(s) of lubricating oil available for aircraft at an aerodrome. -
OffBlockReady tobtUpdateCount The number of updates of TOBT after TSAT has been issued. Integer
OffBlockReady time Time at which the aircraft is ready for Off-Block. DateTimeWithPlanningType
OffBlockReady - Event at which all doors of an aircraft are closed and departure will be possible immediately after reception of the ATC clearance. -
OffBlock departure Operations for which the aircraft departs from its parking position. DepartureOperations
OffBlock time Time at which the aircraft departs from its parking position. DateTimeWithPlanningType
OffBlock - The departure of the aircraft from its parking position. -
Obstruction adjustment Operational factors applied to obstacle clearance altitudes to produce the safest usable altitude. AltitudeAdjustment
Obstruction obstaclePlacement Location of obstacle in relation to a given point. ObstaclePlacement
Obstruction verticalStructureObstruction Vertical assessment controlling obstacle. VerticalStructure
Obstruction slopePenetration A value calculated by dividing 102.0 (a constant) with the angle of the glidepath. Angle
Obstruction requiredClearance Required altitude adjustment above any obstacle or terrain within a defined safety buffer region. ValDistanceType
Obstruction minimumAltitude The value of the minimum obstacle clearance altitude. ValVerticalDistanceType
Obstruction isControlling Indication whether it is a controlling obstruction for the associated obstacle assessment area. Boolean
Obstruction isCloseIn Indication whether the obstruction penetrates the 40:1 OCS, therefore requiring a climb gradient to 200 feet or less above the departure end of runway. Boolean
Obstruction isAssessmentSurfacePenetrated A code indicating whether the controlling obstacle penetrates the assessment surfaces. Boolean
Obstruction - The highest airspace, obstacle or terrain relative to a prescribed plane within a specified area. -
ObstaclePlacement pointType The type of point referenced when determining the bearing and distance to the obstruction. CharacterString
ObstaclePlacement obstaclePlacement The obstacle position relative to the centreline. CodeRelativePositionType
ObstaclePlacement obstacleDistance The distance from a given point to the obstruction. ValDistanceType
ObstaclePlacement obstacleBearing The bearing from a given point to the obstruction. Angle
ObstaclePlacement - Provides the location relative to a given point. -
ObstacleAssessmentArea aircraftCategory Aircraft category for which the obstacle assessment area is evaluated. AircraftCategory
ObstacleAssessmentArea significantObstacle The obstacle that controls the altitude definition of the assessment area would penetrate the 40:1 OCS. Obstruction
ObstacleAssessmentArea type The type of area being assessed. CodeObstacleAssessmentSurfaceType
ObstacleAssessmentArea surfaceZone A description of the zones within obstruction identification surfaces (OIS). CodeObstructionIdSurfaceZoneType
ObstacleAssessmentArea slopeLowerAltitude The altitude at the bottom of the assessment area. ValVerticalDistanceType
ObstacleAssessmentArea slope The slope value of the extent. Decimal
ObstacleAssessmentArea sectionNumber A sequence number indicating a part of an assessment area. Integer
ObstacleAssessmentArea safetyRegulation Identifier for the safety regulations in effect within the zone. CharacterString
ObstacleAssessmentArea gradientLowHigh Low to high gradient within the airspace. Decimal
ObstacleAssessmentArea assessedAltitude Highest of the minimum altitudes in controlling obstacles plus the altitude adjustments (operational factors). ValVerticalDistanceType
ObstacleAssessmentArea - The geometry of surfaces used to define the altitude the length of a segment, holding pattern, etc., in function of the obstructions located in the area. -
ObstacleArea ownerAerodrome The aerodrome for which the obstacle area has been defined. Aerodrome
ObstacleArea ownerRunway The ruwnay for which the obstacle area has been defined. RunwayDirection
ObstacleArea obstacle Obstale within the obstacle area. VerticalStructure
ObstacleArea ownerOrganisation The organisation for which the obstacle area has been defined. Organisation
ObstacleArea type The type of obstacle coverage area. CodeObstacleAreaType
ObstacleArea obstructionIdentificationSurfaceCondition An indicator of the type of obstacle assessment surface that obstructing area represents. CodeObstacleAssessmentSurfaceType
ObstacleArea - An area used for the purpose of collecting obstacle data, as necessary for air navigation systems or functions. -
Obscuration type Type of hydrometeor. CodeObscurationType
Obscuration - A weather phenomenon which reduces the visibility due to hydrometeor or lithometeor in suspension in the air. -
ObjectWithSchedule timesheet A component of the schedule. Timesheet
ObjectWithSchedule specialDateAuthority The organisation responsible for the special dates within the schedule. CharacterString
ObjectWithSchedule - An object with a repetitive time period, occurring cyclically. -
Object annotation A general text note for the object or for one of its properties. Note
Object - A standardized or formalized collection of a Data Entity's Property/(ies). Object does not exist without the Data Entity but can be part of the operational language or system-specific property. -
Note linguisticNote The note written linguistically. LinguisticNote
Note purpose An indication of the goal which led to the provision of the free text note. CodeNotePurposeType
Note propertyName The name of the entity property for which this note is relevant, if applicable. If no propertyName is specified, then the Note is relevant for the entity as a whole. CharacterString
Note - A general text note for an entity or for one of its properties. -
NonMovementArea associatedAerodrome The aerodrome the non-movement area is associated with. Aerodrome
NonMovementArea - Area where aircraft cannot be seen by a control tower and therefore are restricted to move. -
NonAutomatedWeatherObservationSource nonAutomatedWeatherInformationSourceType The type of weather information source. CodeNonAutomatedWeatherInformationSourceType
NonAutomatedWeatherObservationSource - Weather sources that tend to be manual in nature. -
NonAutomatedWeatherObservationInstrument weatherInstrumentType The type of weather instrument used in non-automated weather observation. CodeWeatherInstrumentType
NonAutomatedWeatherObservationInstrument - Non-Automated Weather Observation Instrument -
NitrogenSupply type The type of nitrogen supplies for aviation usage. CodeNitrogenSupplyType
NitrogenSupply - Nitrogen supplies in aviation. -
NDB frequency The frequency of the NDB emission. ValFrequencyType
NDB emissionBand The emission band for the NDB. CodeEmissionBandType
NDB class The class of the NDB. CodeNDBUsageType
NDB - A low or medium radio navigation service transmitting signals whereby the pilot of a suitably equipped aircraft can determine bearings, 'home in' on, and/or track to or from the station. -
NavigationAreaSectorDesign turnDirection A code indicating the direction of the turn. CodeDirectionTurnType
NavigationAreaSectorDesign terminationAltitude The termination altitude. ValVerticalDistanceType
NavigationAreaSectorDesign isTurnPermitted Indication whether the sector is clear for the direction of turn. Boolean
NavigationAreaSectorDesign designGradient The procedure design gradient. Decimal
NavigationAreaSectorDesign - Design criteria used for the navigation area sector. -
NavigationAreaSector sectorDefinition A portion of a navigation area. CircleSector
NavigationAreaSector significantObstacle The obstacle that controls the altitude definition of the sector or would penetrate the 40:1 obstacle clearance surface. Obstruction
NavigationAreaSector sectorCriteria The sector criteria used to define a navigation area sector. NavigationAreaSectorDesign
NavigationAreaSector - Subdivision of a sector to allow for different altitudes or gradients. -
NavigationAreaRestriction sectorDefinition The assessment area. CircleSector
NavigationAreaRestriction designSurface An evaluation area used when designing a procedure to insure safety of aircraft. ObstacleAssessmentArea
NavigationAreaRestriction procedure The procedure to which the navigation area restriction applies. Procedure
NavigationAreaRestriction type The type of restriction area. CodeNavigationAreaRestrictionType
NavigationAreaRestriction - Area that is restricted from use for a procedure. -
NavigationArea centrePoint The significant point which the navigation area is based on. InfrastructurePoint
NavigationArea sector A subdivision of the navigation area designed to provide safety. NavigationAreaSector
NavigationArea departure The SID that is protected by the navigation area. StandardInstrumentDeparture
NavigationArea navigationAreaType The type of navigation area that is defined. CodeNavigationAreaType
NavigationArea minimumVisibility The minimum visibility needed when using the departure navigation area. ValDistanceType
NavigationArea minimumCeiling The minimum cloud base needed when using the departure navigation area. ValVerticalDistanceType
NavigationArea - An area specified by sectors with altitude or procedure descent gradient limitations for omnidirectional departures or Pilot navigation area. -
NavaidOperationalStatus signalType The type of signal that is affected by the operational status. CodeRadioSignalType
NavaidOperationalStatus operationalStatus The operational status of the radio navigation aid. CodeStatusNavaidType
NavaidOperationalStatus - Information about the operational status of the radio navigation aid. -
NavaidEquipmentMonitoring isMonitored An indicator that the radio navigation aid is monitored. Boolean
NavaidEquipmentMonitoring - Information about the radio navigation aid monitoring. -
NavaidEquipmentDistance distanceAccuracy The accuracy of the distance between a runway's centreline point and a specified radio navigation aid. ValDistanceType
NavaidEquipmentDistance distance The measured or calculated distance between a runway centreline point and a radio navigation aid. ValDistanceType
NavaidEquipmentDistance - The distances between various runway centreline points and a radio navigation aid. -
NavaidComponent markerPosition A code indicating the position, in a navaid landing system, of the markers situated on the centreline of a runway. CodePositionInILSType
NavaidComponent isOwnedByService Indicator that the navaid component is owned by the radio navigation service instead of just being used by the service (as a navaid component can be used by multiple radio navigation services). Boolean
NavaidComponent isNavigableLocation Indication that the radio navigation aid is used to specify the navigable location of the radio navigation service when the radio navigation service is used as a significant point. Boolean
NavaidComponent collocationGroup A number identifying the collocation group to which the radio navigation aid belongs. Integer
NavaidComponent - The use of a radio navigation aid as a component of a radio navigation service. -
MovementDescription towardsCardinalDirection The cardinal direction towards which the meteorological phenomenon is moving. CodeCompassPointType
MovementDescription speed Speed of the movement of the meteorological phenomenon. ValSpeedType
MovementDescription isStationary Indication whether a meteorological phenomenon is moving or not. Boolean
MovementDescription fromCardinalDirection The cardinal direction from which the meteorological phenomenon is moving. CodeCompassPointType
MovementDescription directionTowards Heading of the movement of a meteorological phenomenon. Angle
MovementDescription directionFrom The angle from which the meteorological phenomenon is moving. Angle
MovementDescription - Movement information associated with a phenomenon. -
MLSElevation angleSpan The value of the span angle of the elevation transmitter signal between the lower and the upper limits. Angle
MLSElevation angleNominal The normal glide path angle for the MLS installation. Angle
MLSElevation angleMinimum The value of the lowest elevation angle authorized for an MLS procedure. Angle
MLSElevation angleAccuracy Accuracy of the elevation angle. Angle
MLSElevation - A component of an MLS consisting of an SHF transmitter, and associated equipment radiating signals within a volume of airspace served by the MLS, thereby furnishing elevation information as an angular value to aircraft approaching the runway. -
MLSAzimuth type A code indicating if it is 'normal' or 'back' azimuth equipment. CodeMLSAzimuthType
MLSAzimuth trueBearingAccuracy Accuracy of the measured angle between the azimuth beam and True North at the azimuth antenna Angle
MLSAzimuth trueBearing The measured angle between the azimuth beam and True North at the azimuth antenna. Angle
MLSAzimuth magneticBearing The measured angle between the direction of the azimuth beam and Magnetic North at the azimuth antenna. Angle
MLSAzimuth channel A code indicating the channel on which the Microwave Landing System is operating. CodeMLSChannelType
MLSAzimuth angleProportionalRight The value of the angle within which the azimuth indication is proportional to the deviation from the azimuth zero indication direction, and right of this direction from the azimuth antenna. Angle
MLSAzimuth angleProportionalLeft The value of the angle within which the azimuth indication is proportional to the deviation from the azimuth zero indication direction, and left of this direction from the azimuth antenna. Angle
MLSAzimuth angleCoverRight The value of the angle from the zero indication direction within which the azimuth indication is usable, and right of this direction from the azimuth antenna. Angle
MLSAzimuth angleCoverLeft The value of the angle from the zero indication direction within which the azimuth indication is usable, and left of this direction from the azimuth antenna. Angle
MLSAzimuth - A component of an MLS consisting of an SHF transmitter and associated equipment, radiating signals in a volume of airspace served by the MLS, thereby furnishing azimuth indications to aircraft approaching the runway or back azimuth indications to aircraft departing from the runway or performing a missed approach procedure. -
MissedApproachProcedure altimeter A source for determining aircraft altitude using pressure measurements. AltimeterSource
MissedApproachProcedure instruction Operational instructions that must be observed when flying the Missed Approach. CharacterString
MissedApproachProcedure alternateClimbInstruction A second climb-to-altitude provided on a missed approach based off the remote altimeter source. CharacterString
MissedApproachProcedure alternateClimbAltitude The altitude for the alternate climb instruction. ValVerticalDistanceType
MissedApproachProcedure - The procedure to be followed if the approach cannot be continued. -
MissedApproachLeg condition A particular final approach condition that must be met for the assessed missed approach. ApproachCondition
MissedApproachLeg type The types of missed approach. CodeMissedApproachType
MissedApproachLeg requiredNavigationPerformance The minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Decimal
MissedApproachLeg isThresholdAfterMissedApproachPoint Indication whether the missed approach point is after the threshold. Boolean
MissedApproachLeg heightAfterMissedApproachPoint Elevation of the missed approach surface at the missed approach point. ValVerticalDistanceType
MissedApproachLeg - A segment leg designed in accordance with the rules for missed approach segments. -
Minima adjustmentINOP The inoperable equipment. EquipmentUnavailableAdjustment
Minima visibility The minimum visibility needed to land at the airport when using the specified altitude and/or height. ValDistanceType
Minima radioHeight The height reported by a radio altimeter. ValVerticalDistanceType
Minima militaryVisibility The visibility value applicable to the military height. ValDistanceType
Minima militaryHeight The height value for the minimum used by militaries. ValVerticalDistanceType
Minima isRVREquipmentMandatory Indication that RVR equipment is mandatory for this operation. Boolean
Minima heightCode An indication of the meaning of the height value, such as obstacle clearance height or decision height. CodeMinimumHeightType
Minima height The height value for the minimum ValVerticalDistanceType
Minima altitudeCode An indication of the meaning of the altitude value. CodeMinimumAltitudeType
Minima altitude The lowest altitude an aircraft flies before making a decision to land or abort and take the missed approach. ValVerticalDistanceType
Minima - Vertical and horizontal visual minima for a procedure segment conditions such as aircraft category, navigation equipment usage, procedure type, altimeter, etc. -
MilitaryAuthority fleetAircraft An aircraft which forms part of the military authority's fleet. Aircraft
MilitaryAuthority militaryAuthorityType The type of military authority. CodeMilitaryAuthorityType
MilitaryAuthority - The military authority designated by the State. -
MicrowaveLandingSystem mlsAzimuth The MLS Azimuth component of the MLS. MLSAzimuth
MicrowaveLandingSystem mlsElevation The MLS Elevation component of the MLS. MLSElevation
MicrowaveLandingSystem signalPerformance The signal performance level indicating the precision of the MLS system. CodeSignalPerformanceType
MicrowaveLandingSystem frequency The frequency of the MLS system. ValFrequencyType
MicrowaveLandingSystem - A precision approach and landing guidance system operating in the microwave spectrum, which provides position information and various ground-to-air data. -
Measure precision The precision of the unit. Number
Measure accuracy Accuracy (standard deviation) of the measured value. Number
Measure - The result from performing the act or process of ascertaining the extent, dimensions, or quantity of some entity. -
MarkingElement style The style of the marking element line, such as continuous, dotted, etc. on an aerodrome surface. CodeMarkingStyleType
MarkingElement colour The colour of the marking element on an aerodrome surface. CodeColourType
MarkingElement - A symbol displayed on an aerodrome surface in order to convey aeronautical information. -
MarkingBuoy markedSeaplaneLandingArea The seaplane landing area which is marked by the buoy. SeaplaneLandingArea
MarkingBuoy element A component of the marking buoy. LightElement
MarkingBuoy type The type of the marking buoy at a seaplane landing area. CodeBuoyType
MarkingBuoy owner Code indicating the owner of the navigation buoy CodeMarkingBouyOwnerType
MarkingBuoy name Any commonly used name associated with the buoy. CharacterString
MarkingBuoy lightingType The type of marking buoy lighting. CharacterString
MarkingBuoy designator Official number of the marking buoy at a seaplane landing area. CharacterString
MarkingBuoy colour Colour of the marking buoy at a seaplane landing area. CodeColourType
MarkingBuoy - A floating object moored to the bottom in a particular place, as an aid to navigation or for other specific purposes. -
Marking sign A sign used to indicate the position AerodromeSign
Marking element A component of the marking. MarkingElement
Marking marking A marking used to indicate the position Marking
Marking type The type of the marking. CodeMarkingType
Marking isMarkingICAOStandard Indicates the aerodrome protection area surface marking is in accordance with International Civil Aviation Organization (ICAO) standard as described in Annex 14. Boolean
Marking isUsedInLVO Usage of the feature instance for Low Visibility Operations Boolean
Marking condition The quality of aerodrome protection area surface marking such as good, fair, poor and other. CodeMarkingConditionType
Marking - A symbol or group of symbols displayed on the surface of the movement area in order to convey aeronautical information. -
MarkerBeacon frequency The value of the radio emission frequency. ValFrequencyType
MarkerBeacon class A code indicating the class of the radio marker. CodeMarkerBeaconSignalType
MarkerBeacon axisBearing The true bearing of the minor axis of the marker beacon. Angle
MarkerBeacon auralMorseCode The Morse code transmitted by the beacon. CharacterString
MarkerBeacon - A radio navigation service identifying a particular location in space by means of a 75 megahertz (MHz) transmitter which transmits a directional signal to be received by aircraft flying overhead. -
MarineRailway platformWidth The measured width of the marine railway platform. ValDistanceType
MarineRailway platformLength The measured length of the marine railway platform. ValDistanceType
MarineRailway platformCapacity The capacity of the marine railway platform. ValWeightType
MarineRailway - A seaplane hauling system using a rolling carriage running from the water to a repair facility ashore. The vessel to be hauled is floated to a position over the carriage and secured with chocks, then the carriage is hauled up the tracks using a cable winch. -
ManualSurfaceWeatherObservation observedBy The weather observer who performed the observation. WeatherObserver
ManualSurfaceWeatherObservation - Manual Surface Weather Observation -
ManoeuvringAreaUsage operation The type of activity for which an area under air traffic control is specified. CodeOperationManoeuvringAreaType
ManoeuvringAreaUsage - A rule governing the usage of the manoeuvring area element. -
ManoeuvringAreaAvailability usage Rule which regulates the usage of the manoeuvring area. ManoeuvringAreaUsage
ManoeuvringAreaAvailability warning A reason for caution when operating at the facility. CodeAirportWarningType
ManoeuvringAreaAvailability operationalStatus An indicator of the availability of the facility for specific flight operations. CodeStatusAirportType
ManoeuvringAreaAvailability - Information about the operational status of the manoeuvring area elements. -
LongitudinalSeparationMinima - The minimum spacing between the estimated positions of the aircraft being separated. The spacing may be based on time or distance. -
Localizer widthCourseAccuracy Accuracy of the localizer course width, in degrees. Angle
Localizer widthCourse The localizer course width, in degrees. Angle
Localizer trueBearingAccuracy Accuracy of the measured angle between the localizer beam and True North at the localizer antenna. Angle
Localizer trueBearing The measured angle between the localizer beam and True North at the localizer antenna. Angle
Localizer magneticBearingAccuracy Accuracy of the measured angle between the localizer beam and Magnetic North at the localizer antenna. Angle
Localizer magneticBearing The measured angle between the localizer beam and Magnetic North at the localizer antenna. Angle
Localizer frequency The frequency of the localizer. ValFrequencyType
Localizer declination The angular difference between True North and the station declination (Magnetic North - as indicated by the station). Angle
Localizer backCourseUsable A code indicating the usability of the localizer signal in the back course sector. CodeILSBackCourseType
Localizer - A component of an ILS consisting of a VHF transmitter, radiating signals in the direction served by the ILS, to provide a straight line descent path in the vertical plane containing the centre line of the runway. -
LinguisticNote language The language in which the note is written. LanguageCode
LinguisticNote note The text of the note, in a specific language. CharacterString
LinguisticNote - The note content expressed in a specific language. -
LightStatus status The operational status of the light element. CodeStatusOperationsType
LightStatus - The operational status of the light(s). -
LightElement lightElementAvailability The operational status of the light element. LightStatus
LightElement type The type of light source. CodeLightSourceType
LightElement position The position of the light element. ThreeDimensionalPointType
LightElement lightMountingType A code used to identify the relationship of a lighting fixture with respect to it's mounting surface. CharacterString
LightElement lightBulbType The source type of the light. CodeLightBulbType
LightElement intensity The intensity of the lights in a light element group. ValLightIntensityType
LightElement intensityLevel The relative intensity of the lights in a light element group. CodeLightIntensityType
LightElement fixtureType The type of lighting fixture. CodeLightFixtureType
LightElement colour An indication of the colour of the lights in a light element group. CodeColourType
LightElement - An elementary light source, part of a lighting system. -
LightActivation intensityLevel The intensity step of the airborne controlled lighting system activated by the pilot, depending on the number of clicks. CodeLightIntensityType
LightActivation clicks The number of clicks on the microphone required for activation of airborne controlled lights at a particular intensity step. Integer
LightActivation activation The status of an airborne controlled lighting system when activated as the result of the number of clicks. CodeLightSystemActivationType
LightActivation - The status and the intensity of an airborne controlled lighting system when activated by the pilot. -
LateralConstraint - A restriction brought to the lateral component of the trajectory of an aircraft. -
LargeLakeCondition lake The lake which is subject to observation or forecast. Lake
LargeLakeCondition - Weather observations or forecasts over a large body of water with sufficient fetch to generate appreciable wave height. -
Landing arrival Operations during which the landing takes place. ArrivalOperations
Landing preferredLandingRunwayDirection For Air Ground cooperative air traffic services and especially for Pilot Preferences Downlink services, this data is part of the Aircrew's preferences on the way the flight is to be conducted for various operational reasons. In order to elaborate pertinent control strategies, Controllers need to be aware of these preferences. RunwayDirection
Landing time Time at which an aircraft touches down. DateTimeWithPlanningType
Landing landingTolerance The tolerance with which the Target Landing time is required to be achieved by the Aircraft. DateTime
Landing - Event in which an aircraft touches down. -
LandAndHoldShortOperationsMarking lahsoType The type of location being protected by the feature instance CodeLAHSOMarkingType
LandAndHoldShortOperationsMarking holdingSide Relative location of the holding side of a holding position, from startpoint to endpoint of line CodeHoldingSideType
LandAndHoldShortOperationsMarking - Marking used for Land and Hold Short Operations (LAHSO). -
Lake - Inland body of surface water of significant extent. -
JetStream type The type of jet stream. CodeJetStreamType
JetStream - Flat tubular, quasi-horizontal, current of air generally near the tropopause, whose axis is along a line of maximum speed and which is characterized by great speeds and strong vertical and horizontal wind shears. -
IonosphericStorm electronContent The number of electrons along a ray path between a transmitter and a receiver. This number is significant in determining ionospheric effects such as refraction, dispersion, and group delay on radio waves, and can be used to estimate critical frequencies. The total electron content (TEC) is strongly affected by solar and geomagnetic activity. ValParticleContentType
IonosphericStorm - Turbulence in the F region of the ionosphere, usually due to a sudden burst of radiation from the Sun. -
IntermediateLeg requiredNavigationPerformance The minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Decimal
IntermediateLeg - A segment leg designed in accordance with the rules for intermediate segments. -
InstrumentLandingSystem ilsGlidepath The ILS Glidepath component of the ILS. ILSGlidepath
InstrumentLandingSystem localizer The localizer component of the ILS. Localizer
InstrumentLandingSystem marker The Marker Beacon component of the ILS. MarkerBeacon
InstrumentLandingSystem signalPerformance The signal performance level indicating the precision of the ILS system. CodeSignalPerformanceType
InstrumentLandingSystem integrityLevel The quality which relates to the trust which can be placed in the correctness of the information supplied by the ILS facility. CodeIntegrityLevelILSType
InstrumentLandingSystem frequency The frequency of the ILS system. ValFrequencyType
InstrumentLandingSystem courseQuality An indication of the signal quality of the ILS course structure based on the location the precision signal is usable to. CodeCourseQualityILSType
InstrumentLandingSystem - A combination of radio navigation services intended to facilitate aircraft in landing by providing lateral and vertical guidance including indications of distance from the optimum point of landing. -
InstrumentApproachProcedure circlingArea The circling area used on an instrument approach procedure to safely provide visual guidance to other runways. CirclingArea
InstrumentApproachProcedure approachLeg The approach leg which is part of the instrument approach procedure. ApproachLeg
InstrumentApproachProcedure finalProfile The profile view of a final segment defined for an approach procedure. FinalProfile
InstrumentApproachProcedure taa The TAA which supplies shift from the enroute environment to the approach procedure. TerminalArrivalAltitude
InstrumentApproachProcedure missedApproachProcedure Missed approach procedure to be used when the instrument approach procedure is aborted. MissedApproachProcedure
InstrumentApproachProcedure multipleIdentification One character code for multiple approaches of the same approach type. CodeUpperAlphaType
InstrumentApproachProcedure isSBASReliable Indication about SBAS reliability and expected level of service. Boolean
InstrumentApproachProcedure courseReversalInstruction Operational instruction that must be observed for procedure turns and tear drops. CharacterString
InstrumentApproachProcedure copterTrack The final approach track value for copter procedures. Angle
InstrumentApproachProcedure circlingIdentification A suffix letter for circling only procedures. CodeUpperAlphaType
InstrumentApproachProcedure channelGNSS Operating channel of electronic transceiving equipment. Decimal
InstrumentApproachProcedure approachType The type of instrument approach procedure. CodeApproachType
InstrumentApproachProcedure approachPrefix Prefix used in support of current naming conventions. CodeApproachPrefixType
InstrumentApproachProcedure additionalEquipment Additional equipment needed to fly the procedure. CodeApproachEquipmentAdditionalType
InstrumentApproachProcedure - A series of predetermined manoeuvres by reference to flight instruments with specified protection from obstacles from the initial approach fix, or where applicable, from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en-route obstacle clearance criteria apply. -
InitialLeg requiredNavigationPerformance The minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Decimal
InitialLeg - A segment leg designed in accordance with the rules for initial segments. -
InfrastructurePoint containingAirspace The airspace containing the significant point. Airspace
InfrastructurePoint airspaceLayerForCheck The block in which the checking of a navigation system or initialisation of an inertial navigation system should be performed. AirspaceLayer
InfrastructurePoint radioNavaidEquipment A radio navigation aid that is located near the runway and for which the relative position from a centreline point is defined. RadioNavigationAid
InfrastructurePoint extendedServiceVolume For a significant point used as segment point, an approved and flight checked extension to the standard service volume of a navaid. RadioFrequencyArea
InfrastructurePoint runwayElement The runway element marked by the significant point. RunwayElement
InfrastructurePoint applicableRoutePortion The route portion that the change over point applies to. RoutePortion
InfrastructurePoint radioNavaidEquipment missing data RadioNavigationAid
InfrastructurePoint navaidSystem A radio navigation service used as significant point. RadioNavigationService
InfrastructurePoint checkPointFacility The navigation aid on which the check point is based. VOR
InfrastructurePoint runwayBlastPad The runway blast pad marked by the significant point. RunwayBlastPad
InfrastructurePoint runwayProtectArea The runway protect area marked by the significant point. RunwayProtectArea
InfrastructurePoint runwayMarking The runway marking at the point. RunwayMarking
InfrastructurePoint aerodrome Aerodrome with which the infrastructure point is associated. Aerodrome
InfrastructurePoint arrestingGear The arresting gear protecting the point. ArrestingGear
InfrastructurePoint touchDownLiftOff The touch down lift-off area whose centre is marked by the significant point. TouchDownLiftOff
InfrastructurePoint connectingGuidanceLine A GuidanceLine which connects to the RunwayCentrelinePoint GuidanceLine
InfrastructurePoint associatedDeclaredDistance The declared distance marked by the runway centreline point. RunwayDeclaredDistance
InfrastructurePoint onRunway Location of the runway centreline point. RunwayDirection
InfrastructurePoint passedBy The flight which passed by the point. Flight
InfrastructurePoint facilityMakeup Specific facility make up used by aircraft to locate the significant point used as segment point. PointReference
InfrastructurePoint turnRadius The recommended turn radius when continuing on the previous segment of the route (start point) or when continuing on the next segment of the route (end point). ValDistanceType
InfrastructurePoint reportingATC An indicator of the type of position report required by an ATC Unit. CodeATCReportingType
InfrastructurePoint relativeLocation A code indicating the location of a significant point in relation to airspace. CodeAirspacePointPositionType
InfrastructurePoint leadRadial The lead radial provides information for aircraft with single receiving equipment to change the receiver to the localizer or other facility providing the course guidance and to ensure the aircraft is within the clearance coverage area of LOC facilities before changing frequency or accepting on-course indication. Angle
InfrastructurePoint leadDME The lead DME , like the lead Radial, provides information for aircraft with single receiving equipment to change the receiver to the localizer or other facility providing the course guidance and to ensure the aircraft is within the clearance coverage area of LOC facilities before changing frequency or accepting on-course indication. ValDistanceType
InfrastructurePoint isRadarGuidancePossible An indicator whether radar guidance is possible for reaching this point. Boolean
InfrastructurePoint usage The usage of a point when describing the Airspace or Base Infrastructure. CodeInfrastructurePointUsageType
InfrastructurePoint checkpointDistance The value of the distance from the checkpoint to the navaid. ValDistanceType
InfrastructurePoint checkpointCategory Indicates the position of the checkpoint; airborne or ground CodeCheckpointCategoryType
InfrastructurePoint checkpointAngle The indication of a bearing (at a given point) by the measurement of the angle between the checkpoint and the navaid equipment (VOR). Angle
InfrastructurePoint - A point used in describing the base or airspace infrastructure. -
InformationService clientAirspace The airspace about which the information is provided. Airspace
InformationService clientAerialRefuelling The aerial refuelling for which the information service is provided. AerialRefuelling
InformationService clientHolding The holding procedure for which the information is provided. HoldingProcedure
InformationService clientProcedure The procedure for which the information is provided. Procedure
InformationService clientRoute The route portion for which the information is provided. RoutePortion
InformationService clientAerodrome The aerodrome for which the information service is provided. Aerodrome
InformationService directionFinder The DirectionFinder associated with the InformationService DirectionFinder
InformationService navaidBroadcast The VOR on which the information service is broadcast. VOR
InformationService type The type of information service provided. CodeServiceInformationType
InformationService isVoice Indication whether the service is provided as voice message. Boolean
InformationService isRecorded Indication whether the information broadcast is recorded and played back rather than a live transmission. Boolean
InformationService isDataLink Indication whether the service is available via data-link. Boolean
InformationService - A service that consists in the provision of aeronautical, meteorological, traffic and related information to aircraft crew and other actors involved in flight operations, in flight or on the ground. -
InBlock arrival Operations during which the aircraft arrives at its parking position. ArrivalOperations
InBlock time The time that an aircraft arrives in-blocks. DateTimeWithPlanningType
InBlock - The arrival of the aircraft at its parking position. -
ILSGlidepath slope The angle of the glide path. Angle
ILSGlidepath referenceDatumHeightAccuracy Accuracy of the value of the ILS reference datum height. ValVerticalDistanceType
ILSGlidepath referenceDatumHeight The value of the ILS reference datum height. ValVerticalDistanceType
ILSGlidepath frequency The frequency value of the glide path indicator. ValFrequencyType
ILSGlidepath angleAccuracy Accuracy of the glide path angle. Angle
ILSGlidepath - A component of an ILS consisting of a UHF transmitter radiating signals and providing a straight line descent path in the vertical plane containing the centre line of the runway served by the ILS, and thereby furnishing descent information down to the lowest authorized decision height or to the surface of a runway, depending on the Facility Performance Category of the ILS. -
IdentifierType schemeVersionIdentifier The identification of the version of the identifier scheme. CharacterString
IdentifierType schemeIdentifier The identification of the identifier scheme. CharacterString
IdentifierType schemeAgencyIdentifier The identification of the agency that manages the identifier scheme. CharacterString
IdentifierType - An identifier used to identify one instance of an entity within an identification scheme that is managed by a formal organisation. -
Icing accretionRate Ratio of growth of the ice deposit. Decimal
Icing - Formation of ice, rime, or hoarfrost on an aircraft in flight. -
HorizontalVisibility prevailingVisibility The greatest visibility value, observed in accordance with the definition of visibility", which is reached within at least half the horizon circle or within at least half of the surface of the aerodrome. These areas could comprise contiguous or non-contiguous sectors." ValDistanceType
HorizontalVisibility minimumVisibility Visibility for aeronautical purposes is the greater of: a) the greatest distance at which a black object of suitable dimensions, situated near the ground, can be seen and recognized when observed against a bright background; b) the greatest distance at which lights in the vicinity of 1 000 candelas can be seen and identified against an unlit background. ValDistanceType
HorizontalVisibility isUnidirectionalVisibility Indication whether the horizontalVisibility is given for a single direction or not. Boolean
HorizontalVisibility isPrevailingVisibilityAbove10000metres Indication that the prevailing visibility is of at least 10000 meters. Boolean
HorizontalVisibility minimumVisibilityDirection The direction of the minimum visibility relative to the reporting station. CodeCompassPointType
HorizontalVisibility - An aggregation of horizontal visibility conditions typically reported together at an aerodrome, including the prevailing visibility and minimum visibility. -
HoldingUse instruction Operational instruction concerning the use of the holding procedure in relation with a procedure. CharacterString
HoldingUse instructedAltitude An altitude referenced in the holding use instructions. ValVerticalDistanceType
HoldingUse holdingUse Indication of how the holding is used on the approach segment. CodeHoldingUseType
HoldingUse - The usage of the holding procedure on a segment. -
HoldingProcedure outboundLegEndPoint The second waypoint of a two point holding, used to define the end of the outbound leg. InfrastructurePoint
HoldingProcedure holdingFix A geographical location that serves as a reference for a holding procedure. InfrastructurePoint
HoldingProcedure upperLimit The maximum vertical distance, measured from a specified reference, allowed for all aircraft categories, at all defined speeds, operating in a holding procedure. ValVerticalDistanceType
HoldingProcedure type An indicator of the type of holding procedure. CodeHoldingUsageType
HoldingProcedure turnDirection An indicator of the turn direction in an aerial manoeuvre performed by aircraft during holding operations. CodeDirectionTurnType
HoldingProcedure speedLimit Restricted speed for containment in a smaller pattern during holding operations. ValSpeedType
HoldingProcedure outboundLegEndTime The duration of the holding pattern outbound leg. TM_Duration
HoldingProcedure outboundLegEndDistance The length of the holding pattern outbound leg. ValDistanceType
HoldingProcedure outboundCourseType The type of outbound course to be observed. CodeCourseType
HoldingProcedure outboundCourse The outbound course (for example, true track, magnetic track, heading, VOR radial, true bearing, magnetic bearing) from the significant point on which holding is based. Angle
HoldingProcedure lowerLimit The minimum vertical distance, measured from a specified reference, allowed for all aircraft categories, at all defined speeds, operating in a holding procedure. ValVerticalDistanceType
HoldingProcedure isNonStandardHolding An indication that the holding pattern is non-standard. Boolean
HoldingProcedure instruction Operational instructions that must be observed when flying the holding procedure. CharacterString
HoldingProcedure inboundCourse The radial, course or bearing of the inbound leg as it pertains to a holding procedure. Angle
HoldingProcedure - A predetermined manoeuvre which keeps an aircraft within a specified airspace while awaiting further clearance. -
HoldingAssessment holdingFix Point used to evaluate safe holding. InfrastructurePoint
HoldingAssessment assessedHoldingProcedure The holding procedure assessed by the holding assessment. HoldingProcedure
HoldingAssessment unplannedHolding Holding approved for all significant radials of a navaid or fix. UnplannedHolding
HoldingAssessment obstacleAssessment Obstacle assessment area used in the holding assessment. ObstacleAssessmentArea
HoldingAssessment upperLimit Max altitude allowed for all aircraft categories at all defined speeds. ValVerticalDistanceType
HoldingAssessment speedLimit Restricted speed for containment in a smaller pattern. ValSpeedType
HoldingAssessment patternTemplate Number of the holding template. CharacterString
HoldingAssessment lowerLimit Minimum altitude allowed for all aircraft categories at all defined speeds. ValVerticalDistanceType
HoldingAssessment legLengthToward Leg length for when holding is toward the navaid. ValDistanceType
HoldingAssessment legLengthAway Leg length for when holding is away the navaid. ValDistanceType
HoldingAssessment isForTurbulentAir Indication that the evaluation is for turbulent air. Boolean
HoldingAssessment - The geometry of surfaces that define altitude levels and the structure of an area used to evaluate obstacles for determining holding patterns. -
Hoist hoistingCapability Lifting capability of the hoist. ValWeightType
Hoist - A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The load is attached to the hoist by means of a lifting hook. -
GuidanceLineMarking markedGuidanceLine Guidance line that is marked. GuidanceLine
GuidanceLineMarking guidanceLineMarkingType The type of guidance line marking. CodeGuidanceLineMarkingType
GuidanceLineMarking - A symbol or group of symbols displayed as the guidance line. -
GuidanceLineLightSystem lightedGuidanceLine The guidance line lit by the guidance line light system. GuidanceLine
GuidanceLineLightSystem - The lighting system for the centreline guidance line. -
GuidanceLine connectedRunwayCentrelinePoint Runway centreline point connected via the guidance line. InfrastructurePoint
GuidanceLine connectedStand Aircraft stand connected by the guidance line. AircraftStand
GuidanceLine connectedApron Apron connected by the guidance line. Apron
GuidanceLine apronElement An apron element containing the guidance line. ApronElement
GuidanceLine deicingArea A deicing area associated with the guidance line. DeicingArea
GuidanceLine connectedTouchDownLiftOff The touch down lift off zone connected by the guidance line. TouchDownLiftOff
GuidanceLine connectedTaxiway Taxiway connected by the guidance line. Taxiway
GuidanceLine guidanceLine A guidance line related to the current guidance line. GuidanceLine
GuidanceLine runwayElement A runway element associated with the guidance line. RunwayElement
GuidanceLine taxiwayElement A taxiway element associated with the guidance line. TaxiwayElement
GuidanceLine taxiHoldingPosition A TaxiHoldingPosition situated on the GuidanceLine TaxiwayHoldingPosition
GuidanceLine guidanceLineMarking The Marking marked on the GuidanceLine GuidanceLineMarking
GuidanceLine guidanceLineLightSystem The LightSystem provided for an GuidanceLine GuidanceLineLightSystem
GuidanceLine usageDirection The direction in which the guidance line can be used with reference to its geometry. CodeDirectionType
GuidanceLine type The type of guidance line on a taxiway. CodeGuidanceLineType
GuidanceLine maxSpeed The maximum ground speed permitted on a taxiway. ValSpeedType
GuidanceLine designator The identifier of a guidance line on a taxiway. CharacterString
GuidanceLine - A line used to guide aircraft on and between airport movement areas. -
GroundTrafficControlService clientAerodrome The aerodrome where the surface traffic control service is provided. Aerodrome
GroundTrafficControlService - An ATC service provided for the purpose of: (a) preventing collisions on the manoeuvring area between aircraft and between aircraft and obstacles or vehicles; and (b) expediting and maintaining an orderly flow of aircraft operating on the manoeuvring area. -
GroundLightSystem aerodrome The aerodrome at which the ground light system is located. Aerodrome
GroundLightSystem owner The organisation that owns the ground light system. Organisation
GroundLightSystem availability The operational status of the ground light system. LightStatus
GroundLightSystem supportingStructure The VerticalStructure which supports the GroundLightSystem VerticalStructure
GroundLightSystem pilotControlledLighting The PilotControlledLighting service which activates the GroundLightSystem PilotControlledLighting
GroundLightSystem element A component of the ground light system. LightElement
GroundLightSystem usage A code indicating the usage of an entity. CodeEntityUsageType
GroundLightSystem length The length of the lighting system. ValDistanceType
GroundLightSystem isEmergencyLightingAvailable The availability of a back-up lighting system to be used in case of failure of the main lighting system. Boolean
GroundLightSystem intensityLevel An indication of the relative intensity of the ground lighting system. CodeLightIntensityType
GroundLightSystem distanceToRunwayThreshold The distance measurement of an identified light system point to the associated runway threshold. ValDistanceType
GroundLightSystem colour An indication of the global colour of the ground lighting system. CodeColourType
GroundLightSystem - One or more light sources located on the ground that provide visual assistance. -
GroundHandling aircraft The aircraft subject to ground handling. Aircraft
GroundHandling location The airspace to be monitored for emissions during ground handling. Airspace
GroundHandling startTime The time at which Ground Handling services start for a flight. DateTimeWithPlanningType
GroundHandling endTime The time at which Ground Handling services end for a flight. DateTimeWithPlanningType
GroundHandling duration The total duration of the ground handling of the aircraft. DurationWithPlanningType
GroundHandling - Services necessary for an aircraft's arrival at, and departure from, an airport, other than air traffic services. -
GeoTemporalEnabledEntity - An entity which is both geospatial in character and has temporal aspects. -
GeomagneticActivity interplanetaryKIndexLevel A 3-hourly quasi-logarithmic local index of geomagnetic activity relative to an assumed quiet-day curve for the recording site. The K index measures the deviation of the most disturbed component. Decimal
GeomagneticActivity geomagneticStormLevelScale The correlation of geomagnetic storm related space weather events with their likely effects on technological systems. CodeSpaceWeatherScaleType
GeomagneticActivity - Disturbances in the geomagnetic field caused by gusts in the solar wind that blows by the Earth. -
GeoEnabledEntity relativeLocation The location of an entity expressed in relation to another entity. GeoEnabledEntity
GeoEnabledEntity volume The geometry of the entity expressed as a volume. GM_Solid
GeoEnabledEntity surfaceExtent The geometry of the entity expressed as a surface or area described by a closed line. GM_Surface
GeoEnabledEntity position The geometry of the entity expressed as the position of a point on the surface of the Earth. GM_Point
GeoEnabledEntity curveExtent The geometry of the entity expressed as a curve which is a connected sequence of points. GM_Curve
GeoEnabledEntity - An entity which has a geospatial character. -
GeoBorder type The type of geographical border. CodeGeoBorderType
GeoBorder name The name of the geographical border. CharacterString
GeoBorder - A physical or political border. -
Gate availability The availability of the gate. ApronAreaAvailability
Gate terminal Terminal served by the gate. Terminal
Gate useMode The Gate may be used for arrival, for departure, or both. CodeAirportMovementType
Gate isUsableForTransit Indication that the gate can be used for transit. Boolean
Gate internationalType The gate may be reserved for domestic/national flights or for international flights (Schengen or not). CodeInternationalFlightType
Gate designator The textual designator of the gate. For example, 13, 84 A, etc.. CharacterString
Gate - Access to an airport terminal on the passenger side. -
Gangway width The measured overall width available for the gangway. ValDistanceType
Gangway material A code used to identify the material(s) used in the construction of the structure. CodeVerticalStructureMaterialType
Gangway length The measured overall length available for the gangway. ValDistanceType
Gangway - A variable-sloped pedestrian walkway that links a fixed structure or land with a floating structure. -
GalacticCosmicRay backgroundThresholdPercentage The percentage of background galactic cosmic ray intensity as observed by neutron monitors. Decimal
GalacticCosmicRay - Highly energetic radiation thought to be created by supernovae, etc., where the outer layers of an exploding star are shock-accelerated to enormous speeds. This radiation, primarily protons, crosses the galaxy and possibly even between galaxies. -
Fuel category A code indicating a type of fuel for aircraft and helicopters. CodeFuelType
Fuel - The type(s) of fuel available for aircraft and helicopters. -
FourDimensionalPointType verticalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
FourDimensionalPointType verticalDatum The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements are made as basis for measuring elevations. CodeVerticalDatumType
FourDimensionalPointType verticalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
FourDimensionalPointType verticalAccuracy The difference between the recorded elevation of an entity and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability. ValDistanceType
FourDimensionalPointType time The time corresponding to the point. DateTime
FourDimensionalPointType temporalAccuracy The difference between the recorded time of an entity and its true time. ClockTime
FourDimensionalPointType horizontalResolution A distance corresponding to the number of units or digits to which a measured or calculated value is expressed and used. ValDistanceType
FourDimensionalPointType horizontalAccuracy The difference between the recorded horizontal coordinates of an entity and its true position referenced to the same geodetic datum expressed as a circular error at 95 percent probability. ValDistanceType
FourDimensionalPointType horizontalConfidenceLevel A statistical measure of the estimated confidence with which the data captured met its required accuracy. A required confidence level of 90% indicates that 90% of the measured point(s) should meet their respective accuracy requirements. Integer
FourDimensionalPointType height The vertical distance of a level, a point or an object considered as a point, measured from a specified datum. ValVerticalDistanceType
FourDimensionalPointType geoidUndulation The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point. ValDistanceType
FourDimensionalPointType elevation The vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level. ValAltitudeType
FourDimensionalPointType altitude The vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL). ValAltitudeType
FourDimensionalPointType - Derived from GM_Point and extended to include properties for describing a three dimensional point with a time. -
FormationComponent fleetAircraft The aircraft in the formation component Aircraft
FormationComponent aircraftType The aircraft type that is common to the machines belonging to the military fleet. AircraftType
FormationComponent owner The Unit that owns the fleet. Unit
FormationComponent numberOfAircraft Number of aircraft with the same aircraft type in the fleet of one unit Integer
FormationComponent - A set of airframes that belong to one Unit and are of the same type. -
FloatingDockSite seaplaneLandingArea The SeaplaneLandingArea associated with the FloatingDockSite SeaplaneLandingArea
FloatingDockSite width The overall measured width available for the floating dock. ValDistanceType
FloatingDockSite material A code used to identify the material(s) used in the construction of the structure. CodeVerticalStructureMaterialType
FloatingDockSite length The overall measured length available for the floating dock. ValDistanceType
FloatingDockSite - Floating facility which can serve as a mooring place for vessels or as a floating dry dock. -
FloatingBarge width The overall measured width available for the floating barge. ValDistanceType
FloatingBarge material A code used to identify the material(s) used in the construction of the structure. CodeVerticalStructureMaterialType
FloatingBarge length The overall measured length available for the floating barge. ValDistanceType
FloatingBarge - A long, large, usually flatbottom boat for transporting freight that is generally unpowered and towed or pushed by other craft. A barge anchored offshore makes an excellent seaplane service facility. An office, lounge, or shop is normally included aboard;" and floating docks can be added alongside the barge. The barge may be anchored directly to the shore or to a pier by booms and a gangway or anchored offshore in a fixed position." -
FlightRoutingElement airspaceElement Airspace which is impacted by a flight restriction. Airspace
FlightRoutingElement aerialRefuellingElement Aerial refuelling element which is impacted by a flight restriction. AerialRefuelling
FlightRoutingElement routePortionElement Route portion which is impacted by a flight restriction. RoutePortion
FlightRoutingElement standardInstrumentArrivalElement Standard instrument arrival which is impacted by a flight restriction. StandardInstrumentArrival
FlightRoutingElement standardInstrumentDepartureElement SID which is impacted by a flight restriction. StandardInstrumentDeparture
FlightRoutingElement flightLevel Level associated with the routing element. FlightRestrictionLevel
FlightRoutingElement directFlightElement Direct flight segment which is impacted by a flight restriction. RouteTrajectorySegment
FlightRoutingElement pointElement Significant point which is impacted by a flight restriction. SignificantPoint
FlightRoutingElement aerodromeElement Aerodrome which is impacted by a flight restriction. Aerodrome
FlightRoutingElement speedReference A code indicating the reference system for the speed value. CodeSpeedReferenceType
FlightRoutingElement speedCriteria A code indicating whether the speed is a maximum, a minimum or an imposed value. CodeComparisonType
FlightRoutingElement speed The value of the speed limit imposed on a routing element. ValSpeedType
FlightRoutingElement orderNumber A number in sequence used to indicate the order of the routing element in the flight restriction routing to which it belongs. Integer
FlightRoutingElement - An airspace, route or point that is concerned by a specified flight restriction. -
FlightRestrictionRoute routeElement Routing element concerned by a specified flight restriction. FlightRoutingElement
FlightRestrictionRoute contact The contact information of the relevant authority which can grant the permission for using the routing. ContactInformation
FlightRestrictionRoute isPriorPermissionRequired Indication that a minimum lead time is required for contacting the relevant authority in order to get permission for using the routing. Boolean
FlightRestrictionRoute - A sequence of routing elements (points, route portions or airspace) that must/must not appear in the specified order in the flight plan of an aircraft fulfilling the conditions of the related Flight Restriction. -
FlightRestrictionLevel cruisingLevelRange A cruising level band associated with a flight restriction. DistanceVerticalRangeType
FlightRestrictionLevel cruisingLevel A cruising level associated with a flight restriction. ValVerticalDistanceType
FlightRestrictionLevel - A single level or a level band associated with a flight restriction, either condition or routing element. -
FlightRestriction flight Fflight affected by the flight restriction. FlightConditionCombination
FlightRestriction regulatedRoute Route regulated by the flight restriction FlightRestrictionRoute
FlightRestriction type A code indicating if the restriction is an interdiction or a mandatory routing. CodeFlightRestrictionType
FlightRestriction instruction A description of the operational instructions which form the flight restriction. CharacterString
FlightRestriction designator A coded value which identifies the restriction. CharacterString
FlightRestriction - A rule meant to regulate the use of the route network, by identifying a set of flights which fulfil a combination of elementary flow conditions and either forbidding them on a particular routing or obliging them to follow one routing out of a set of mandatory alternatives. -
FlightCrewApplicationAndApproval qualification A particular equipment or procedure qualification. Qualification
FlightCrewApplicationAndApproval runwayVisualRangeMinima Operating minima when special meteorological conditions exist. ValDistanceType
FlightCrewApplicationAndApproval - Equipment and procedures for which the air crew is qualified. -
FlightConfiguration mainEnginesFuelFlow The fuel flow for the main engines of an aircraft at a specific time during a flight in terms of amount per time unit. Decimal
FlightConfiguration isTCASResolutionAdvisoryActive Flag indicating if TCAS Resolution Advisory is active =0 TCAS II or ACAS RA not active =1 TCAS RA active Boolean
FlightConfiguration isSpecificServiceCapability Indication whether specific BDS-registers are used, without additional specifications. Boolean
FlightConfiguration isSingleAntenna Single Antenna = 0 Antenna Diversity = 1 Single Antenna only Boolean
FlightConfiguration isReceivingATCServices Indication whether the aircraft is receiving ATC Services. Boolean
FlightConfiguration isPositionOffsetApplied Position Offset Applied = 0 Position transmitted is not ADS-B position reference point = 1 Position transmitted is the ADS-B position reference point Boolean
FlightConfiguration isIDENTSwitchActive Indication that the IDENT"-switch is active." Boolean
FlightConfiguration barometricPressureSetting The barometric pressure reading used to adjust a pressure altimeter for variations in existing atmospheric pressure or to the standard altimeter setting. ValPressureType
FlightConfiguration auxiliaryPowerUnitFuelFlow The fuel flow for the auxilliary power unit of aircraft at a specific time during a flight in terms of amount per time unit. Decimal
FlightConfiguration aircraftMass The mass of the aircraft at a specific time during the flight. ValMassType
FlightConfiguration - Configuration of aircraft in operation. -
FlightConditionElement aircraft A condition based on an aircraft. Aircraft
FlightConditionElement airspaceCondition A condition based on an airspace. Airspace
FlightConditionElement aerialRefuellingCondition A condition based on an aerial refuelling. AerialRefuelling
FlightConditionElement routePortionCondition A condition based on a route portion. RoutePortion
FlightConditionElement standardInstrumentArrivalCondition A condition based on an standard instrument arrival. StandardInstrumentArrival
FlightConditionElement standardInstrumentDepartureCondition A condition based on an SID. StandardInstrumentDeparture
FlightConditionElement operationalCondition A condition based on operational circumstances. FlightConditionCircumstance
FlightConditionElement operand A combination of flight conditions. FlightConditionCombination
FlightConditionElement directFlightCondition A condition based on a direct flight. RouteTrajectorySegment
FlightConditionElement weather A condition based on the weather. WeatherCondition
FlightConditionElement organisationCondition A condition based on an organisation. Organisation
FlightConditionElement significantPointCondition A condition based on a significant point. SignificantPoint
FlightConditionElement flightLevel Flight level associated with a flight condition element. FlightRestrictionLevel
FlightConditionElement aerodromeCondition A condition based on an aerodrome. Aerodrome
FlightConditionElement borderCrossingCondition A condition based on the crossing of the common border between two adjacent airspaces. AirspaceEntry
FlightConditionElement index A sequence number used to indicate the order of the operand when composing the flight condition combination. Integer
FlightConditionElement - An operand in a flight condition combination. -
FlightConditionCombination element An element of the flight condition. FlightConditionElement
FlightConditionCombination logicalOperator The type of operation combining an elementary condition or a previously defined combination with other elementary conditions or previously defined combinations. CodeLogicalOperatorType
FlightConditionCombination - A combination of conditions involving: 1) an operator such as \AND\", \"OR\", \"AND NOT\", \"SEQUENCE\", \"NONE\" and 2) one or more operands, each of these being either a condition element or another combination of conditions." -
FlightConditionCircumstance relationWithLocation A code qualifying a location (such as an airspace, aerodrome, point, etc.) when used as condition element. CodeLocationQualifierType
FlightConditionCircumstance isReferenceLocation A code indicating if the condition element is a reference location for the flight restriction, i.e. if the time schedule associated with the restriction must be considered as applicable for that flight condition element. Boolean
FlightConditionCircumstance - Circumstance related to the elementary condition (such as departing from an aerodrome), which is used to further refine the selection of flights being affected by the restriction. -
FlightCapability aircraftCapability The ability of an aircraft or an aircraft equipment to provide a service or perform a function that, either on its own or with other services or functions, can deliver a definable level of performance. AircraftCapability
FlightCapability flightCrewApplicationAndApproval Equipment and procedures for which the air crew is qualified. FlightCrewApplicationAndApproval
FlightCapability rnpCapability Indication about which Required Navigation Performance requirements can be met by the aircraft while operating in the context of a particular airspace when supported by the appropriate navigation infrastructure. CodeRNPCapabilityType
FlightCapability rnavCapability Indication about which Area Navigation requirements can be met by the aircraft while operating in the context of a particular airspace when supported by the appropriate navigation infrastructure. CodeRNAVFlightCapabilityType
FlightCapability navigationCapability The navigation capability of the aircraft and associated flight crew qualifications. CodeNavigationCapabilityType
FlightCapability communicationCapability The capability of the aircraft and associated flight crew qualifications to communicate with ATS units. CodeCommunicationCapabilityType
FlightCapability - The capabilities of the flight comprising of the: a) presence of relevant serviceable equipment on board the aircraft; b) equipment and capabilities commensurate with flight crew qualifications; and c) where applicable, authorization from the appropriate authority. -
Flight aircraft The aircraft enabling the flight. Aircraft
Flight actualPassedWaypoint The actual waypoint passed by the flight. InfrastructurePoint
Flight arrivalOperations The set of flight operations following procedures associated with the destination aerodrome. ArrivalOperations
Flight departureOperations The set of flight operations following procedures associated with the departure aerodrome. DepartureOperations
Flight emergencyPhase Emergency situation in which the flight may be. EmergencyPhase
Flight diplomaticClearance Diplomatic clearance applicable to the flight. DiplomaticClearance
Flight coordination The coordination of the conditions of transfer between ATC units successively in control of the flight. CoordinationAndTransfer
Flight destinationAerodrome The aerodrome of intended landing. Aerodrome
Flight departureAerodrome The aerodrome from which the flight departs. Aerodrome
Flight alternateAerodrome An aerodrome to which an aircraft may proceed when it becomes either impossible or inadvisable to proceed to or to land at the aerodrome of intended landing where the necessary services and facilities are available, where aircraft performance requirements can be met and which is operational at the expected time of use. Aerodrome
Flight pilot The pilot in command of the aircraft. PilotInCommand
Flight flightCapability The capabilities of the flight. FlightCapability
Flight responsibleATSU The ATSU controlling the flight. Unit
Flight routeTrajectory The description of movement of an aircraft. RouteTrajectory
Flight airspaceEntry Airspace entry event occurring during the flight. AirspaceEntry
Flight operator The aircraft operator of the flight. AircraftOperator
Flight ssrCode SSR code assigned to the flight. SSRCode
Flight militaryAircraftOperator The Unit that flies the Sortie. MilitaryAuthority
Flight dataLinkAuthority The Air traffic services unit (ATSU) with which the aircraft is communicating using Controller-pilot data link communications (CPDLC). Unit
Flight diversionRecoveryFlight Indication that a flight is the recovery for a flight that changed its original destination. Flight
Flight previousFlight The arrival flight that will use the same aircraft. Flight
Flight nextFlight The departure flight that will use the same aircraft. Flight
Flight airspaceExit Airspace exit event occurring during the flight. AirspaceExit
Flight aircraftIdentification The aircraft identifiation of the flight. AircraftIdentification
Flight formationComponent Description of the set of airframes belonging to the formation flight that are of the same type. FormationComponent
Flight emergencyContact Emergency contact information. ContactInformation
Flight type The type of the flight. CodeFlightType
Flight totalEstimatedElapsedTime For IFR flights, the estimated time required from take-off to arrive over that designated point, defined by reference to navigation aids, from which it is intended that an instrument approach procedure will be commenced, or, if no navigation aid is associated with the destination aerodrome, to arrive over the destination aerodrome. For VFR flights, the estimated time required from take-off to arrive over the destination aerodrome. TM_Duration
Flight statusForCount A flight status for limiting the traffic count. CodeFlightStatusForCountType
Flight statusFFICE Status information for information management of the flight information. CodeFFICEStatusType
Flight reasonForSpecialHandling The reason for special handling of a flight by ATS. CodeReasonForSpecialHandlingType
Flight readyStatus The flight readiness status. CodeFlightReadyStatusType
Flight preferredCourseDeviationIfReRoute Preferring a southerly course deviation if a re-route is necessary. CodeCompassPointType
Flight origin An indication of the origin of the flight with regard to the national borders. CodeFlightOriginType
Flight operatorFlightPriority Value between 0 and 100 that the flight operator assigns to the aircraft to indicate a relative level or priority among its aircrafts arriving in a given airport in case of traffic, in order to assign delays. Integer
Flight numberOfAircraft Number of aircraft flying in a formation in which the aircraft are governed by one flight plan. Integer
Flight isReRouteOf120NmAcceptable Any reroute less than 120 nm or less is acceptable. Boolean
Flight isIFPLIdentifierTemporary For an AFIL flight, indication whether the IFPL identifier is temporary assigned by FDP. Boolean
Flight isGroundDelayPreferrableOverReRoute Preferring a ground delay over a reroute for pre-departure flights. Boolean
Flight isFlightManagementForced Indication whether a change in the management of the flight has been forced by a manual arbitration. Boolean
Flight isAirborne Indication whether the flight is airborne. Boolean
Flight isAbleToAcceptSpecificRunway The operator may be unwilling or unable to accept a specific runway. Boolean
Flight isAbleToAcceptCirclingApproaches The aircraft operator may be unwilling to perform circling approaches. Boolean
Flight isAbleToAcceptAirToAirSeparation The aircraft operator may be unwilling to perform air-to-air separation. Boolean
Flight ifplIdentifier A unique flight plan identifier allocated by the IFPS. CharacterString
Flight hasSpecialRequirements Indicator that the flight is expected to be operating in accordance with regulations issued by the relevant State for aircraft operating as State aircraft, as per Article 3 of the Convention on International Civil Aviation (Doc 7300), and for aircraft operating in accordance with State regulations for non-standard flying activities, normally through the use of reserved airspace. Boolean
Flight globallyUniqueFlightIdentifier A single reference for FF-ICE information pertinent to a flight that is unique globally. CharacterString
Flight fuelEndurance The estimated maximum length of time the aircraft can spend in the cruise phase of flight, determined by the amount of fuel at take-off. TM_Duration
Flight flightDataKind Indication whether the flight information is real or a copy of a real flight (alternative or what-if flight). CodeFlightDataKindType
Flight dateOfDeparture The date of flight departure. Date
Flight - The operation of an aircraft which, in the case of a manned aircraft, takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, or in the case of an unmanned aircraft, takes place between the time the aircraft is ready to move with the purpose of flight until such time as it comes to rest at the end of the flight and the primary propulsion system is shut down. -
FireFightingService standard A code indicating the standard referred to by the fire fighting category value. CodeAviationStandardsType
FireFightingService category A standard categorisation of the rescue and fire-fighting capabilities of an aerodrome on the basis of the length and fuselage width of the largest aircraft to be rescued. CodeFireFightingType
FireFightingService - An airport service that provides rescue and fire fighting capabilities for aircraft in emergency at and around the airport. -
FinalProfile altitude A declared altitude defined for a final segment. ApproachAltitudeTable
FinalProfile distance A declared distance defined for a final segment. ApproachDistanceTable
FinalProfile timing A declared time defined for a final segment. ApproachTimingTable
FinalProfile - The profile view of a final segment defined for an approach procedure. -
FinalLeg visualDescentPoint A defined point on the final approach course of a nonprecision straight-in approach procedure from which normal descent from the MDA to the runway touchdown point may be commenced, provided visual reference is established. InfrastructurePoint
FinalLeg finalPathAlignmentPoint A point defined by a latitude, longitude and MSL elevation used in conjunction with the LTP and the geometric center of the WGS-84 ellipsoid to define the vertical plane of a PA RNAV final approach course. InfrastructurePoint
FinalLeg condition A specific condition established for the final segment leg. ApproachCondition
FinalLeg finalApproachSegmentDataBlock Data used in the CRC calculation of the FMS box to insure the final segment of an approach procedure has not been modified. FinalApproachSegmentDataBlock
FinalLeg isRNPDMEAuthorised Indication whether DME/DME RNP 0.3 is allowed. Boolean
FinalLeg minimumBarometricVerticalNavigationTemperature The aerodrome temperature below which the use of Baro-VNAV is not authorized to the LNAV/VNAV DA. ValTemperatureType
FinalLeg landingSystemCategory Landing system category. CodeInstrumentRunwayType
FinalLeg guidanceSystem Guidance system used on the final approach segment of an instrument approach procedure. CodeFinalGuidanceType
FinalLeg courseOffsetSide Indication on which side of the extended runway centreline the final approach course lies, when viewed from the Final Approach Fix. CodeRelativePositionType
FinalLeg courseOffsetDistance The distance between the final approach course and extended runway centreline at a point located 3000 ft from the landing threshold point, measured perpendicular to the extended runway centreline. ValDistanceType
FinalLeg courseOffsetAngle The offset angle between the final approach course and the extended runway centreline. Angle
FinalLeg courseCentrelineIntersect Indication whether the intersection of the final approach course with the extended runway centreline is located before or after the landing threshold point. CodeRelativePositionType
FinalLeg courseCentrelineDistance The distance from the landing threshold point to the point where the extended runway centreline intersects the final approach course. ValDistanceType
FinalLeg - A segment leg designed in accordance with the rules for final segments. -
FinalApproachSegmentDataBlock verticalAlarmLimit Half the length of a segment on the vertical axis (perpendicular to the horizontal plane of WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated vertical position with a probability of 1-E-7 per approach, assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. Decimal
FinalApproachSegmentDataBlock thresholdCourseWidth The width of the lateral course at the Landing Threshold Point (LTP). This width, in conjunction with the location of the Flight Path Alignment Point (FPAP) defines the sensitivity of the lateral deviations throughout the approach. ValDistanceType
FinalApproachSegmentDataBlock satelliteBasedAugmentationSystemServiceProvider SBAS Service Provider Identifier. A number from 0 to 15 that associates the approach procedure to a particular satellite based approach system service provider. Integer
FinalApproachSegmentDataBlock routeIndicator Route Indicator. A single alpha character (A through Z or blank, omitting I and O) used to differentiate between multiple final approach segments to the same runway or heliport. CharacterString
FinalApproachSegmentDataBlock remainderCyclicRedundancyCheck Hexadecimal representation of the 32-bit CRC used to check the integrity of the FAS data block. ValHexType
FinalApproachSegmentDataBlock referencePathIdentifier Reference Path Identifier. A four-character identifier that is used to confirm selection of the correct approach procedure. CharacterString
FinalApproachSegmentDataBlock referencePathDataSelector Reference Path Data Selector (RPDS). A number (0-48) that enables automatic tuning of a procedure by LAAS avionics. Integer
FinalApproachSegmentDataBlock operationType Operation Type. A number from 0 to 15 that indicates the type of the final approach segment. Integer
FinalApproachSegmentDataBlock lengthOffset Distance from the stop end of the runway to the Flight Path Alignment Point ValDistanceType
FinalApproachSegmentDataBlock horizontalAlarmLimit The radius of a circle in the horizontal plane (the local plane tangent to the WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated horizontal position with the required probability for a particular navigation mode assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. Decimal
FinalApproachSegmentDataBlock codeICAO The first two designators of the ICAO location identifier, as identified in ICAO Doc 7910. CharacterString
FinalApproachSegmentDataBlock approachPerformanceDesignator Approach Performance Designator. A number from 0 to 7 that identifies the type of approach. Integer
FinalApproachSegmentDataBlock - The additional information about the Precision Final Segment. Most attributes describe the LPV path point record required for WAAS procedures. -
Facility icaoPrefixCode ICAO Prefix Code of Facility. CharacterString
Facility facilityType The category of the Facility. CharacterString
Facility facilityName Name of the Facility. CharacterString
Facility fiaoCode Flight Inspection Code of Facility. CharacterString
Facility commissionedDate Date that Facility was commissioned. Date
Facility - A physical structure housing personnel or equipment supporting aviation functions and processes. -
EquipmentUnavailableAdjustmentColumn visibilityAdjustment Adjustment for the corresponding visibility value. ValVerticalDistanceType
EquipmentUnavailableAdjustmentColumn isLandingSystemLightsAvailable Indication whether landing system lights are available. Boolean
EquipmentUnavailableAdjustmentColumn isEquipmentRVRAvailable Indication whether RVR reading equipment is available. Boolean
EquipmentUnavailableAdjustmentColumn isApproachLightingInoperative Indication whether the approach lighting is inoperative. Boolean
EquipmentUnavailableAdjustmentColumn guidanceEquipment The guidance equipment which is inoperative CodeApproachType
EquipmentUnavailableAdjustmentColumn - Adjustments that need to be applied in case equipment is inoperative. -
EquipmentUnavailableAdjustment adjustmentINOPCol The adjustment to the minimum based on the inoperable equipment. EquipmentUnavailableAdjustmentColumn
EquipmentUnavailableAdjustment type Indication whether the specified altitude/height is adjusted for the case when certain equipment is unavailable. CodeEquipmentUnavailableType
EquipmentUnavailableAdjustment isAdjustedWhenApproachLightingInoperative Indication whether the specified altitude/height is adjusted for the case when the approach lighting is inoperative. Boolean
EquipmentUnavailableAdjustment - Adjustments to minima when equipment is not available. -
EquipmentCapability terrainAwarenessAndGroundProximityAlertingCapability The capability of the aircraft to warn or alert about the proximity of the ground. CodeTerrainAwarenessAndGroundProximityAlertingCapability
EquipmentCapability isCapable Indication whether the aircraft equipment has this type of capability. Boolean
EquipmentCapability classB2TransmitPowerCapability The class B2 power transmission capability. CodeClassB2TransmitPowerCapabilityType
EquipmentCapability acasCapability The capability of the airborne collision avoidance system. CodeACASCapabilityType
EquipmentCapability - A particular aircraft equipment capability. -
EntityCollection metadata Metadata about the EntityCollection. MD_Metadata
EntityCollection member An entity that is member of the collection. Entity
EntityCollection annotation A general text note for the entity collection. Note
EntityCollection - A collection of entities. -
Entity metadata Metadata about the Entity. MD_Metadata
Entity annotation A general text note for the entity or for one of its properties. Note
Entity lifecycleStageStatus The lifecycle stage of data to enable controls, such as allowing or prohibiting changes to data that is in a specific status, or making data available to other systems when it is in a certain status. CharacterString
Entity identifier Special unique identifier permanently assigned to an entity. IdentifierType
Entity contextUsage The intended purpose of the data, whether that data is intended for publication, future development, research and development, or future predictions. CharacterString
Entity - A definition (type) of an data (ATM) item of interest that is implementation independent and it is subject to constraints. -
Engine type An indication of the type of aircraft engine. CodeAircraftEngineType
Engine maximumRatedThrust The maximum rated thrust. Decimal
Engine - A unit used or intended to be used for aircraft propulsion. It consists of at least those components and equipment necessary for functioning and control, but excludes the propeller/rotors (if applicable). -
EmergencyPhase lastContactUnit The last ATS unit which had two-way contact with the aircraft. Unit
EmergencyPhase lastReportedPosition Last reported aircraft position. RouteTrajectoryPoint
EmergencyPhase type The type of emergency phase. CodeEmergencyPhaseType
EmergencyPhase timeAtLastReportedPosition Time at last reported aircraft position. ClockTime
EmergencyPhase timeOfLastTwoWayContact Time of the last two-way contact with the aircraft. ClockTime
EmergencyPhase reason The emergency reason. CharacterString
EmergencyPhase frequencyOfLastContact Transmitting or receiving frequency of the last two-way contact with the aircraft. ValFrequencyType
EmergencyPhase emergencyStatus The status of the emergency. CodeEmergencyStatusType
EmergencyPhase communicationDefect An issue in the communication between the ground and the flight. CharacterString
EmergencyPhase actionTaken A description of an action taken by an Air Traffic Service unit, in the event of search and rescue. CharacterString
EmergencyPhase - A generic term meaning, as the case may be, uncertainty phase, alert phase or distress phase. -
DurationWithPlanningType planningStatus Qualification of the planning stage where the information is coming from. CodePlanningStatusType
DurationWithPlanningType - Describes the length or distance in the temporal dimension and allows the planning status to be recorded. -
Document issuer The organisation which issed the document. Organisation
Document versionNumber The version number of the document. Number
Document publicationEndDate The date when the document is no longer in effect. DateTime
Document publicationDate The planned or active date, the official date a document goes into effect and is actually being used. DateTime
Document documentURL The web address of the document in URL format. CharacterString
Document documentType The type of document. CharacterString
Document documentIdentifier The document identifier. CharacterString
Document - A piece of written, printed, or electronic matter that provides information or evidence or that serves as an official record. -
DockingArea pier A pier included in the docking area. Pier
DockingArea floatingBarge A floating barge included in the docking area. FloatingBarge
DockingArea hoist A hoist capability available at the docking area. Hoist
DockingArea dockSite Seaplane landing area dock site. FloatingDockSite
DockingArea gangway A gangway included in the docking area. Gangway
DockingArea marineRailway A marine railway included in the docking area. MarineRailway
DockingArea name A commonly used name associated with the Docking Area. CharacterString
DockingArea isPierAvailable Indicates that a pier is available in the Docking Area. Boolean
DockingArea isMarineRailwayAvailable Indicates that a marine railway is available in the Docking Area. Boolean
DockingArea isHoistAvaible Indicates that a hoist is available in the Docking Area. Boolean
DockingArea isGangwayAvailable Indicates that a Gangway is available in the Docking Area. Boolean
DockingArea isFloatingDockAvailable Indicates that a Floating Dock is available in the Docking Area Boolean
DockingArea isFloatingBargeAvailable Indicates that a Floating Barge is available in the Docking Area Boolean
DockingArea - A defined area on a seaplane base either fixed or floating, intended to accommodate aircraft for purposes of loading or unloading passengers or cargo, refueling, parking, or maintenance. -
DME type The particular spectrum characteristics or accuracy of the DME. CodeDMEType
DME ghostFrequency The frequency of a virtual VHF facility paired with the DME according to ICAO Annex 10, table A, ch.3. ValFrequencyType
DME displace The distance from the DME antenna to the position where the zero range indication occurs in the DME receiver. ValDistanceType
DME channel The channel of the DME. CodeDMEChannelType
DME - Ultra High Frequency (UHF) ground equipment that is used in conjunction with airborne equipment to determine distance between the airborne and ground equipment. -
DistanceVerticalRangeType upper The upper limit of the vertical distance range. ValVerticalDistanceType
DistanceVerticalRangeType lower The lower limit of the vertical distance range. ValVerticalDistanceType
DistanceVerticalRangeType - The area of variation of a vertical distance between upper and lower limits. -
DistanceIndication usedPoint A significant point which defines the facility makeup. SignificantPoint
DistanceIndication fix A selected significant point that may have references (distance and/or angle indications). SignificantPoint
DistanceIndication type The type of distance indication. CodeDistanceIndicationType
DistanceIndication minimumReceptionAltitude The lowest altitude that an aircraft can receive signal. ValVerticalDistanceType
DistanceIndication distance The distance from the significant point. ValDistanceType
DistanceIndication - A distance reference from a significant point. -
DirectionFinder informationProvision An information service associated with the direction finder. InformationService
DirectionFinder assistedATCService The ATC Service which is assisted by the DirectionFinder AirTrafficControlService
DirectionFinder type The type of direction finder. CodeDirectionFinderType
DirectionFinder isDoppler An indication whether the equipment uses the doppler effect for higher precision. Boolean
DirectionFinder - An electronic device used to determine the position of a radio source by means of directional antennas, which receives the strongest radio signal when it is pointing directly at the transmitter. -
DiplomaticClearance participant Nations participating to the diplomatic clearance through a Note of Accession State
DiplomaticClearance clearanceNumber European permanent or blanket diplomatic clearance number for the calendar year or one or more national diplomatic clearance numbers. CharacterString
DiplomaticClearance - A special permission for military transport aircraft of the participants to fly over each other country's territory and to land at and take-off from military and civilian airports (to the exception of the airports and/or areas specifically mentioned in a list of exempted airports and/or areas to be completed by each participant) whilst adhering to all national rules, international agreements, ICAO rules, restrictions described in the national military and civilian Aeronautical Information Publications, ATC regulations, NOTAMs or other special requirements. -
DepartureOperations sid The standard instrument departure the aircraft may use after taking off. StandardInstrumentDeparture
DepartureOperations offBlockReady Off-Block Ready event linked to the departure. OffBlockReady
DepartureOperations departureTaxiway The taxiway allocated to the flight by ATC and used for movement between runway and apron. Taxiway
DepartureOperations departureRunway The runway direction used for taking off. RunwayDirection
DepartureOperations departureStand The aircraft stand from which the aircraft departs. AircraftStand
DepartureOperations offBlock Off-Block event linked to the departure. OffBlock
DepartureOperations clearanceForDeparture The departure clearance of the flight. DepartureClearance
DepartureOperations startUpApproval The departure clearance authorising start-up. StartUpClearance
DepartureOperations departureGate The embarking gate. Gate
DepartureOperations takeOff Take-Off event linked to the departure. TakeOff
DepartureOperations boarding The boarding of the aircraft during the departure operations. Boarding
DepartureOperations deicingProcedure The procedure describing the progress in de-icing process. Deicing
DepartureOperations startUp Start-up event linked to the departure. StartUp
DepartureOperations - The set of flight operations following procedures associated with the departure aerodrome. -
DepartureLegCondition engine Type of aircraft engine allowed for the condition. Engine
DepartureLegCondition minimumEnrouteAltitude The altitude for an en-route segment that provides adequate reception of relevant navigation facilities and ATS communications, complies with the airspace structure and provides the required obstacle clearance. ValVerticalDistanceType
DepartureLegCondition minimumCrossingAtEnd The lowermost vertical position at the end point, when flying on the route portion in the direction indicated in the route portion usage. ValVerticalDistanceType
DepartureLegCondition maximumCrossingAtEnd The uppermost vertical position at the end point, when flying on the route portion in the direction indicated in the route portion usage. ValVerticalDistanceType
DepartureLegCondition - A condition which is established for a departure leg. -
DepartureLeg departure The SID which is composed of the departure leg. StandardInstrumentDeparture
DepartureLeg condition A specific condition established for the departure leg. DepartureLegCondition
DepartureLeg requiredNavigationPerformance The minimum navigation performance accuracy required in an airspace. It is the navigation performance accuracy of all the user and navigation system combinations within an airspace. Decimal
DepartureLeg minimumObstacleClearanceAltitude The minimum altitude for a defined segment of flight that provides the required obstacle clearance. ValVerticalDistanceType
DepartureLeg - A portion of a departure procedure as defined by two consecutive significant points. -
DepartureClearance clearedStandardInstrumentDeparture The standard instrument departure that the flight is cleared to fly after take-off. StandardInstrumentDeparture
DepartureClearance departure Operations for which the departure clearance applies. DepartureOperations
DepartureClearance departureAerodrome The departure aerodrome. Aerodrome
DepartureClearance departureRunway The runway direction from which the flight is cleared to take off. RunwayDirection
DepartureClearance departureClearanceStatus The departure clearance status. CodeDepartureClearanceStatusType
DepartureClearance - Authorization for an aircraft to take-off under conditions specified by an air traffic control unit. -
DeicingGroup associatedAerodrome The aerodrome associated with this deicing group Aerodrome
DeicingGroup deicingArea A deicing area forming part of this deicing group DeicingArea
DeicingGroup - A group of deicing areas. -
DeicingAreaMarking markedDeicingArea Deicing area that is marked. DeicingArea
DeicingAreaMarking - A symbol or group of symbols displayed on the surface of a deicing area -
DeicingArea standLocation Aircraft stand associated with the deicing area. AircraftStand
DeicingArea associatedApron Apron associated with the deicing area. Apron
DeicingArea availability The operational status of the deicing area. ApronAreaAvailability
DeicingArea apronElement An apron element associated with this deicing area. ApronElement
DeicingArea taxiwayElement A taxiway element associated with the deicing area. TaxiwayElement
DeicingArea taxiwayLocation The taxiway associated with the deicing area. Taxiway
DeicingArea deicingArea A deicing area associated with this deicing area. DeicingArea
DeicingArea guidanceLine A guidance line associated with the deicing area. GuidanceLine
DeicingArea surfaceProperties Surface characteristics of the deicing area. SurfaceCharacteristics
DeicingArea deicingGroup The associated Deicing Group DeicingGroup
DeicingArea deicingAreaMarking The Marking marked on the DeicingArea DeicingAreaMarking
DeicingArea - An area comprising an inner area for the parking of an aeroplane to receive de-icing / anti-icing treatment and an outer area for the manoeuvring of two or more mobile de-icing / anti-icing equipment. -
Deicing departure The departure operations that include the deicing. DepartureOperations
Deicing areaForDeicing The deicing area where the deicing operation is carried out. DeicingArea
Deicing readyForDeicing The time when the aircraft is ready to be de-iced. DateTimeWithPlanningType
Deicing endOfDeicing The time when de-icing operations on an aircraft end. DateTimeWithPlanningType
Deicing deicingTolerance Tolerance in deicing time TM_Duration
Deicing deicingStatus Status of progress of the de-icing procedure. CodeDeicingStatusType
Deicing deicingPlace De-icing location. CodeLocationToDeiceType
Deicing deicingDuration The forecast duration of the de-icing procedure. TM_Duration
Deicing commencementOfDeicing The time when de-icing operations on an aircraft starts. DateTimeWithPlanningType
Deicing - De-icing operation on an aircraft that may consist of removal of snow, ice or frost from the aircraft (de-icing), and/or also application of chemicals that remain on a surface and continue to delay the reformation of ice up (anti-icing). -
DateTimeWithPlanningType valueInterpretation Indication of how the time value should be interpreted. CodeValueInterpretationType
DateTimeWithPlanningType timeTolerance Allowable amount of variation in time, expressed symmetrically with regards to the time value. TimeRangeType
DateTimeWithPlanningType planningStatus Qualification of the planning stage where the information is coming from. CodePlanningStatusType
DateTimeWithPlanningType - A combination of a date and a time type which allows the planning status to be recorded. -
CrewMember contactDetails The contact details of the crew member. ContactInformation
CrewMember - A person assigned by an operator to duty on an aircraft during a flight duty period. -
CoordinationAndTransfer currentCommunicationOe The operational entity currently in communication with the flight, indicating the unique contoller that is controlling the flight. Unit
CoordinationAndTransfer transferringOe The transferring operational entity for a given coordination. Unit
CoordinationAndTransfer previousSSRCode The SSR code used by the flight immediately before the one communicated or requested during transfer. SSRCode
CoordinationAndTransfer previousCommunicationOe The operational entity communicating with the aircraft in the transferring system instance before the transfer. Unit
CoordinationAndTransfer boundary The boundary for the transfer of control. RouteTrajectoryPoint
CoordinationAndTransfer receivingCommunicationOe The operational entity that will be in communication with the aircraft after the transfer. Unit
CoordinationAndTransfer nextSSRCode The SSR code used by the receiving system instance. SSRCode
CoordinationAndTransfer receivingOe The receiving operational entity for a given coordination. Unit
CoordinationAndTransfer processStatus The state of progress of the coordination and transfer of control process (between civilian ATSUs or between a civilian and a military ATSU or with an Oceanic centre) CodeCoordinationAndTransferStatusType
CoordinationAndTransfer nonStandardReason The reason for a non standard coordination. CodeNonStandardReasonType
CoordinationAndTransfer isStandardProcedureApplied Indicator of whether or not the coordination process is in agreement with pre-defined criteria (agreed coordination points, flight levels on these points, ADEP, ADES, time or distance limits after which coordination is considered non standard etc.). Boolean
CoordinationAndTransfer isSSRCoderequested Indicator of whether or not the receiving unit is requested to assign an SSR code to the flight. Boolean
CoordinationAndTransfer isNextAuthorityNotified Indication whether the next authority has been notified or not. Boolean
CoordinationAndTransfer coordinationReason The reason for coordination. CodeCoordinationReasonType
CoordinationAndTransfer coordinationConditionStatus The state of coordination of the time and level at the coordination point. CodeBasicCoordinationStatusType
CoordinationAndTransfer - A dialogue procedure between ATC Units successively in control of a flight, comprising - notification of the flight - coordination of conditions of transfer by the transferring ATC unit - coordination, if necessary, and acceptance of conditions of transfer by the accepting ATC unit - transfer of control to the accepting ATC unit. -
ConvectionCell volume The volume of the convection cell. AirspaceVolume
ConvectionCell convection The convection phenomenon occuring within the cell. Convection
ConvectionCell convectionCellType Indication whether the convection cell described is the base (cell base) of a cell, or the upper part of a cell (cell top). CodeConvectionCellType
ConvectionCell convectionCellTopVariation The observed variation of the altitude of the upper part convection cell. CodeConvectionCellTopVariationType
ConvectionCell convectionCellOvershootPosition Location in latitude and longitude of the convection cell overshoot. TwoDimensionalPointType
ConvectionCell - A volume of convective air. -
Convection - In the atmosphere, convection is the dominant vertical transport process in convective boundary layers, which are common over tropical oceans and, during sunny days, over continents. Moist convection in the atmosphere is characterized by deep, saturated updrafts and downdrafts, and unsaturated downdrafts driven by the evaporation and melting of precipitation. This form of convection is made visible by cumulus clouds and cumulonimbus clouds in the case of precipitation convection. -
Contour contourValue The value of the measure that applies to that contour. For example a pressure chart could have contours where each contour line represents a specific pressure value, this could be sorted in the contourValue. Measure
Contour - An estimated or observed outline of a particular weather situation. -
ContactInformation address A postal address for the contact. PostalAddress
ContactInformation networkNode A direct link for the contact, over a data communication network. OnlineContact
ContactInformation phoneFax A phone or fax number for the contact. TelephoneContact
ContactInformation title The official title of the contact. CharacterString
ContactInformation name The official name of the contact. CharacterString
ContactInformation - Information required to enable contact with the responsible person and/or organisation. -
CodeWorkAreaType SURFACE_WORK The work area is used for surface improvements. -
CodeWorkAreaType PARKED_AIRCRAFT Parked or disabled aircraft or machinery. -
CodeWorkAreaType CONSTRUCTION The work area is used for construction. -
CodeWorkAreaType - A code indicating the type of work performed in the work area. -
CodeWindCharacteristicType VRB Wind direction on airport surface is variable -
CodeWindCharacteristicType NORMAL Wind on airport surface is normally described through the direction attribute -
CodeWindCharacteristicType CALM Wind direction on airport surface is irrelevant, wind is less than 1kt -
CodeWindCharacteristicType 100_KNOTS Forecasted wind on airport surface is more than 100kt (200 Km/h) -
CodeWindCharacteristicType - When it is not possible to forecast a prevailing surface wind direction due to its expected variability, for example, during light wind conditions (less than 3 kt) or thunderstorms, the forecast wind direction should be indicated as variable using VRB". When the wind is forecast to be less than 1 kt the forecast wind speed should be indicated as calm. When a wind speed of 20oKm/h (100kt) or more is forecast, it should be indicated as 200Km/h (or 100kt) [ICAO ANNEX 3, recommendation 6.2.12]" -
CodeWeatherSensorStatusType VISNO_LOC VISNO_LOC -
CodeWeatherSensorStatusType TSNO TSNO -
CodeWeatherSensorStatusType RVRNO RVRNO -
CodeWeatherSensorStatusType PWINO PWINO -
CodeWeatherSensorStatusType PNO PNO -
CodeWeatherSensorStatusType FZRANO FZRANO -
CodeWeatherSensorStatusType CHINO_LOC Chino Loc -
CodeWeatherSensorStatusType - The status of sensor used in weather observation. -
CodeWeatherSatelliteOrbitType POLAR_OPERATIONAL_ENVIRONMENTAL_SATELLITE The Polar-orbiting Operational Environmental Satellite (POES) project operates a constellation of weather satellites in polar orbits around the Earth. It is a joint effort between the National Oceanic and Atmospheric Administration (NOAA) and the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT). -
CodeWeatherSatelliteOrbitType GEOSTATIONARY_OPERATIONAL_ENVIRONMENTAL_SATELLITE The Geostationary Operational Environmental Satellite system (GOES), operated by the United States' National Oceanic and Atmospheric Administration's National Environmental Satellite, Data, and Information Service division, supports weather forecasting, severe storm tracking, and meteorology research. -
CodeWeatherSatelliteOrbitType - The type of weather satellite orbits. -
CodeWeatherRadarType TDWR_SYSTEM Terminal Doppler Weather Radar (TDWR) is a Doppler weather radar system with a three-dimensional pencil beam" used primarily for the detection of hazardous wind shear conditions, precipitation, and winds aloft on and near major airports situated in climates with great exposure to thunderstorms in the United States." -
CodeWeatherRadarType NEXRAD_SYSTEM NEXRAD (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars -
CodeWeatherRadarType ASR_4 A type of long-range surveillance radar. -
CodeWeatherRadarType - The types of weather radar. -
CodeWeatherPhenomenonType TEMPERATURE_INVERSION Vertical temperature distribution such that temperature increases with height. -
CodeWeatherPhenomenonType SQUALL Atmospheric phenomenon characterized by an abrupt and large increase of wind speed with a duration of the order of minutes which diminishes rather suddenly. It is often accompanied by showers or thunderstorms. -
CodeWeatherPhenomenonType SANDSTORM An ensemble of particles of sand energetically lifted to great heights by a strong and turbulent wind. -
CodeWeatherPhenomenonType SAND_WHIRL </