ElevatedPoint


             ElevatedPoint

A zero-dimensional object that specifies geometric location which includes elevation and vertical extent and is used in obstacles, navaids, etc.

Properties	Definition	Type
elevation	The vertical distance of the point measured from Mean Sea Level (MSL).	(string) ValDistanceVerticalType
geoidUndulation	The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point.	(decimal) ValDistanceSignedType
verticalAccuracy	The difference between the recorded elevation of a point and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability.	(decimal) ValDistanceType
verticalDatum	The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements of a point, are made as basis for measuring elevations.	(string) CodeVerticalDatumType

Details

ElevatedPoint


              ElevatedPoint

A zero-dimensional object that specifies geometric location which includes elevation and vertical extent and is used in obstacles, navaids, etc.

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalPointType	Derived from GM_Point and extended to include properties for describing a point with elevation and vertical extent.

elevation


              ElevatedPoint.elevation

The vertical distance of the point measured from Mean Sea Level (MSL).

Semantic Correspondence

AIRM Concept	Definition
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.

geoidUndulation


              ElevatedPoint.geoidUndulation

The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point.

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalPointType.geoidUndulation	The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the point.

verticalAccuracy


              ElevatedPoint.verticalAccuracy

The difference between the recorded elevation of a point and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability.

Semantic Correspondence

AIRM Concept	Definition
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.

verticalDatum


              ElevatedPoint.verticalDatum

The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements of a point, are made as basis for measuring elevations.

Semantic Correspondence

AIRM Concept	Definition
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.