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EA:  ATM_VERTICAL_REFERENCE

Status: STD 2005/06/07
Code: 129
Concept definition: The <SURFACE_DATUM> and accompanying method of reporting the vertical displacement to an <OBJECT> (for example: a level in an <ATMOSPHERE>) in an <ATMOSPHERE>; atmosphere vertical reference.
 
Attribute value type: ENUMERATION
Reference type: IR
Reference: [FACC, Annex B: ICL]
Supplemental references:  
Enumerants (presented in a natural order)
Status Attribute label Enumerant label ▾ Concept definition Code Ref type Reference Supplemental references
STD
2005/06/07		 ATM_VERTICAL_REFERENCE ICAO_STD_ATM The reference <SURFACE_DATUM> is at 1 013,25 hectoPascals in the ICAO standard atmosphere and the resulting measurement is reported as the <<PRESSURE_ALTITUDE>>. 1 IR [GMET, "standard atmosphere"]  
STD
2005/06/07		 ATM_VERTICAL_REFERENCE ICAO_STD_ATM_FLIGHT-
_LEVEL		 The reference <SURFACE_DATUM> is at 1 013,25 hectoPascals in the ICAO standard atmosphere and the resulting measurement is reported as an ICAO flight level. 2 IR [GMET, "standard atmosphere"]  
STD
2005/06/07		 ATM_VERTICAL_REFERENCE PLANETARY_SURFACE The reference <SURFACE_DATUM> is a <PLANETARY_SURFACE> and the resulting measurement is reported as the height. 3 IR [WMO407, Paragraph II.2.1.1]  
STD
2005/06/07		 ATM_VERTICAL_REFERENCE STATION_ALTIMETER_SETTING The reference <SURFACE_DATUM> is defined by the <<PRESSURE_ALTIMETER_SETTING>> and the resulting altimeter reading is reported as the indicated altitude; station altimeter setting. 4 IR [GMET, "station pressure"]  
STD
2005/06/07		 ATM_VERTICAL_REFERENCE TRUE_ALTITUDE The reference <SURFACE_DATUM> is MSL and the resulting measurement is reported as the true altitude. 5 IR [GMET, "true altitude"]  
Group membership:

In addition to the status and date information for each entry, a colour coding scheme highlights the database holding to which an entry belongs. The following highlight colours are used:

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