WindObservedOrEstimated


             WindObservedOrEstimated

Wind information within a vertical layer to be provided when volcanic ash is not identifiable from satellite data.

Properties	Definition	Type
variableWindDirection	When true, indicates that the wind direction is variable. Wind direction should not be reported	Boolean
verticalLayer	The vertical layer in terms of flight levels in which wind is provided.	AirspaceLayer
windDirection	Wind direction within the layer. It shall be given in degrees from true North. Plane angle unit of measure (uom) is deg"."	Angle
windSpeed	Wind speed within the layer. Unit of measure shall be given in m/s" or "[kn_i]" (knot)."	Velocity

Details

WindObservedOrEstimated


              WindObservedOrEstimated

Wind information within a vertical layer to be provided when volcanic ash is not identifiable from satellite data.

variableWindDirection


              WindObservedOrEstimated.variableWindDirection

When true, indicates that the wind direction is variable. Wind direction should not be reported

Semantic Correspondence

AIRM Concept	Definition
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.

AIRM Concept

Definition

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.

verticalLayer


              WindObservedOrEstimated.verticalLayer

The vertical layer in terms of flight levels in which wind is provided.

Semantic Correspondence

AIRM Concept	Definition
WindLayer	Vertically bounded area wind phenomenon, characterized by several attributes of type WindDirection, WindSpeed, a position and a height.

windDirection


              WindObservedOrEstimated.windDirection

Wind direction within the layer. It shall be given in degrees from true North. Plane angle unit of measure (uom) is deg"."

Semantic Correspondence

AIRM Concept	Definition
Wind.windDirection	Direction from which wind is blowing.

windSpeed


              WindObservedOrEstimated.windSpeed

Wind speed within the layer. Unit of measure shall be given in m/s" or "[kn_i]" (knot)."

Semantic Correspondence

AIRM Concept	Definition
Wind.windSpeed	The speed of the wind.