SIGMETPosition
SIGMETPosition
Conditions that indicate the presence of a specific SIGMET phenomenon such as volcanic ash or a thunderstorm. Used to represent the forecast positions of SIGMET phenomena. TC TOP (ABV and BLW) conditions are represented by the vertical component of the geometry. For example: CB TOP FL500 is represented as a missing lowerLimit and an upperLimit of 500FL. In cases where the position covers an entire FIR or CTA, (ENTIRE CTA or ENTIRE FIR" from ICAO Annex 3 / WMO No. 49-2), the geometry should be an xlink to the AirspaceVolume under geometryComponent of issuingAirTrafficServicesRegion."
| Properties | Definition | Type |
|---|---|---|
| approximateLocation | Indicator of whether the location of phenomena is approximate. If not reported locations are not approximate | Boolean |
| geometry | The geographic region affected by the reported phenomenon at a particular time (thunderstorms, volcanic ash, etc.). This geometry covers all combinations of phenomenon historically reported in Annex 3: a boundary with a base and top, a TC centre position, and a VA line with a width | AirspaceVolume |
Details
SIGMETPosition
SIGMETPosition
Conditions that indicate the presence of a specific SIGMET phenomenon such as volcanic ash or a thunderstorm. Used to represent the forecast positions of SIGMET phenomena. TC TOP (ABV and BLW) conditions are represented by the vertical component of the geometry. For example: CB TOP FL500 is represented as a missing lowerLimit and an upperLimit of 500FL. In cases where the position covers an entire FIR or CTA, (ENTIRE CTA or ENTIRE FIR" from ICAO Annex 3 / WMO No. 49-2), the geometry should be an xlink to the AirspaceVolume under geometryComponent of issuingAirTrafficServicesRegion."
Notes
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approximateLocation
SIGMETPosition.approximateLocation
Indicator of whether the location of phenomena is approximate. If not reported locations are not approximate
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| Change request | A change request is required on the AIRM. |
geometry
SIGMETPosition.geometry
The geographic region affected by the reported phenomenon at a particular time (thunderstorms, volcanic ash, etc.). This geometry covers all combinations of phenomenon historically reported in Annex 3: a boundary with a base and top, a TC centre position, and a VA line with a width
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| WeatherCondition.contour | A contour used to outline a particular weather situation within the forecast or observation. |