Table C.2 — EAs whose label begins with A

Label Groups Reference type Reference Supplemental references
ABSOLUTE_ELEVATION_ACCURACY LOCATION, SURVEY IR [MCGA]  
ABSOLUTE_HORIZONTAL_ACCURACY LOCATION, SURVEY IR [FACC, Annex B: AHA]  
ABSOLUTE_HUMIDITY ATMOSPHERE, RATE_OR_RATIO PR [WMO182, "absolute humidity"]  
ABSOLUTE_LATITUDE_ACCURACY ANGULAR_MEASURE, LOCATION, SURVEY IR [FACC, Annex B: ALA]  
ABSOLUTE_LONGITUDE_ACCURACY ANGULAR_MEASURE, LOCATION, SURVEY IR [FACC, Annex B: ALO]  
ABSOLUTE_VERTICAL_ACCURACY LOCATION, SURVEY IR [FACC, Annex B: AVA]  
ACCESS_DIRECTION_TYPE ABSTRACT_OBJECT IR [FAD, Annex B: ADT]  
ACCESSIBILITY_STATUS ABSTRACT_OBJECT IR [FAD, Annex B: ACS]  
ACCUM_PRECIP ATMOSPHERE, DIMENSION, MATERIAL, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_24_HOUR ATMOSPHERE, DIMENSION, MATERIAL, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_24_HOUR_DENSITY MATERIAL, RATE_OR_RATIO, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_3_HOUR ATMOSPHERE, DIMENSION, MATERIAL, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_3_HOUR_DENSITY ATMOSPHERE, MATERIAL, RATE_OR_RATIO, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_6_HOUR ATMOSPHERE, DIMENSION, MATERIAL, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_6_HOUR_DENSITY ATMOSPHERE, MATERIAL, RATE_OR_RATIO, SURFACE_MATERIAL IR [FMH1, 12.7.2]  
ACCUM_PRECIP_DENSITY RATE_OR_RATIO PR [WMO306, I.1, Part B, BUFR Code Table B.13]  
ACCUMULATION_PERIOD MATERIAL, SURFACE, TIME      
ACCUMULATION_PERIOD_CATEGORY TIME      
ACOUSTIC_BOUNDARY_LOSS ACOUSTIC_PHENOMENON, COMMUNICATION, RATE_OR_RATIO, WATERBODY_FLOOR, WATERBODY_SURFACE     [PUWS]
ACOUSTIC_CENTRE_FREQUENCY_BAND ACOUSTIC_PHENOMENON PR ISO 266  
ACOUSTIC_HALFCHANNEL-
_OBSERVATION_FRACTION 		ACOUSTIC_PHENOMENON, RATE_OR_RATIO, WATERBODY_STATE     [PUWS]
ACOUSTIC_NOISE_MARGINAL_ICE-
_ZONE_MULTIPLIER 		ACOUSTIC_PHENOMENON, AIR_TRNSP, ICE, TRNSP IR [OAML, Shipping Noise Database]  
ACOUSTIC_NOISE_SPECTRAL-
_CURVE_CORRECTION 		ACOUSTIC_PHENOMENON, RATE_OR_RATIO, WATERBODY_STATE IR [OAML, Shipping Noise Database]  
ACOUSTIC_PWR_LVL_BAND ACOUSTIC_PHENOMENON, RATE_OR_RATIO, WATERBODY_STATE     [PUWS]
ACOUSTIC_PWR_LVL_SPECTRUM ACOUSTIC_PHENOMENON, RATE_OR_RATIO, WATERBODY_STATE     [PUWS]
ACOUSTIC_PWR_LVL_SPECTRUM-
_CORRECTION 		ACOUSTIC_PHENOMENON, RATE_OR_RATIO, WATERBODY_STATE IR [OAML, Shipping Noise Database]  
ACOUSTIC_REFLECTION_TYPE ACOUSTIC_PHENOMENON, WATERBODY_FLOOR IR [FACC, Annex B: RET]  
ACOUSTIC_REFLECTOR ABSTRACT_OBJECT, ACOUSTIC_PHENOMENON IR [APDS, "acoustic reflectivity"]  
ACOUSTIC_SCATTERING_STRENGTH ACOUSTIC_PHENOMENON, RATE_OR_RATIO, WATERBODY_STATE IR [OAML, Volume Scattering Strength Database]  
ACOUSTIC_TARGET_STRENGTH ACOUSTIC_PHENOMENON, RATE_OR_RATIO     [PUWS]
ACOUSTIC_TRANSMISSION_LOSS ACOUSTIC_PHENOMENON, RATE_OR_RATIO      
ACOUSTIC_VOLUME_LAYER-
_SCATTERING_STRENGTH_FREQUENCY 		ACOUSTIC_PHENOMENON, WATERBODY_STATE IR [OAML, Volume Scattering Strength Database]  
ACTIVE_ACOUSTIC ABSTRACT_OBJECT, ACOUSTIC_PHENOMENON     [PUWS]
AERIAL_COUNT COMMUNICATION, DEVICE_AND_EQUIPMENT, EM_PHENOMENON, INFRASTRUCTURE, SUPPORT_STRUCTURE      
AERIAL_FUNCTION COMMUNICATION, DEVICE_AND_EQUIPMENT, EM_PHENOMENON, INFRASTRUCTURE      
AERIAL_TYPE COMMUNICATION, DEVICE_AND_EQUIPMENT, EM_PHENOMENON, INFRASTRUCTURE      
AERODROME_ELEVATION AIR_TRNSP, LOCATION, TRNSP IR [FACC, Annex B: ZV3]  
AERODROME_EMERGENCY_LIGHTING-
_INTENSITY 		AIR_TRNSP, EM_PHENOMENON, LIGHTING_AND_VISIBILITY, RATE_OR_RATIO, TRNSP      
AERODROME_GATE_LIGHTING-
_INTENSITY 		AIR_TRNSP, EM_PHENOMENON, LIGHTING_AND_VISIBILITY, RATE_OR_RATIO, TRNSP      
AERODROME_IDENTIFICATION AIR_TRNSP, ALGORITHM_RELATED, IDENTIFICATION, TRNSP PR [DAFIF, Sec. 201.A.1, "Airport Identification"]  
AERODROME_TYPE AIR_TRNSP, TRNSP, USAGE_REGION IR [FACC, Annex B: APT]  
AERONAUTICAL_APPROACH_TYPE AIR_TRNSP IR [FAD, Annex B: AAC]  
AERONAUTICAL_FUNCTION AIR_TRNSP IR [FAD, Annex B: AMC]  
AERONAUTICAL_LIGHT_TYPE AIR_TRNSP, LIGHTING_AND_VISIBILITY, TRNSP IR [FACC, Annex B: LFA]  
AERONAUTICAL_OBSTRUCTION-
_HEIGHT_ACCURACY 		AIR_TRNSP, LOCATION, TRNSP IR [FACC, Annex B: AHO]  
AERONAUTICAL_POINT_FUNCTION AIR_TRNSP IR [FAD, Annex B: APC]  
AERONAUTICAL_ROUTE_TYPE AIR_TRNSP IR [FAD, Annex B: ART]  
AEROSOL_LAYER_BASE_LEVEL AIRBORNE_PARTICLE, ATMOSPHERE, LOCATION      
AEROSOL_LAYER_TOP_LEVEL AIRBORNE_PARTICLE, ATMOSPHERE, LOCATION IR [JMCDM, "AEROSOL-ANALYSIS-FORECAST top height dimension"]  
AEROSOL_PARTICLE_CONCENTRATION AIRBORNE_PARTICLE, ATMOSPHERE, RATE_OR_RATIO IR [PRUP]  
AEROSOL_PARTICLE_TYPE AIRBORNE_PARTICLE, ATMOSPHERE      
AFTERBURNER_INDUCED_FLAME_RATE AIR_TRNSP, RATE_OR_RATIO, TRNSP, VEHICLE IR [EBEV, 4.3.1.2, Bit: 16 (Afterburner)]  
AID_TO_NAVIGATION_COLOUR-
_PATTERN 		ABSTRACT_OBJECT, COLOUR, TRNSP IR [FACC, Annex B: PAT]  
AID_TO_NAVIGATION_DESCRIPTION DEVICE_AND_EQUIPMENT, TRNSP IR [FACC, Annex B: DAN]  
AID_TO_NAVIGATION-
_EFFECTIVENESS_RADIUS 		DEVICE_AND_EQUIPMENT, DIMENSION, TRNSP IR [FACC, Annex B: RAN]  
AID_TO_NAVIGATION_MARK_COLOUR COLOUR, TRNSP IR [FACC, Annex B: MAR]  
AID_TO_NAVIGATION_MARK_SYSTEM ABSTRACT_OBJECT, TRNSP PR [S57A, Attribute: MARSYS] [FACC, Annex B: NMS]
AID_TO_NAVIGATION_MARKER_TYPE DEVICE_AND_EQUIPMENT, TRNSP IR [FACC, Annex B: BDT]  
AID_TO_NAVIGATION_PRIMARY-
_OPERATING_RANGE 		DEVICE_AND_EQUIPMENT, DIMENSION, TRNSP IR [FACC, Annex B: ORC]  
AID_TO_NAVIGATION_RANGE DEVICE_AND_EQUIPMENT, DIMENSION, TRNSP IR [FACC, Annex B: LRP]  
AID_TO_NAVIGATION_SECONDARY-
_OPERATING_RANGE 		DEVICE_AND_EQUIPMENT, DIMENSION, TRNSP IR [FACC, Annex B: OR2]  
AID_TO_NAVIGATION_STATUS ABSTRACT_OBJECT, DEVICE_AND_EQUIPMENT, TRNSP IR [FACC, Annex B: ATN]  
AID_TO_NAVIGATION_SYSTEM_TYPE DEVICE_AND_EQUIPMENT, TRNSP IR [FACC, Annex B: IAC]  
AIR_DENSITY ATMOSPHERE, MATERIAL, RATE_OR_RATIO PR [WMO182, "air density"]  
AIR_EXFILTRATION_RATE ATMOSPHERE, RATE_OR_RATIO, SUPPORT_STRUCTURE IR [HVACS]  
AIR_INFILTRATION_RATE ATMOSPHERE, RATE_OR_RATIO, SUPPORT_STRUCTURE IR [HVACS]  
AIR_TEMPERATURE ATMOSPHERE, TEMPERATURE IR [GMET, "air temperature"]  
AIR_TEMPERATURE_ERROR ATMOSPHERE, TEMPERATURE      
AIR_TEMPERATURE_PERIOD ATMOSPHERE, TIME      
AIRCRAFT_CARRIER_CLASS AIR_TRNSP, HYDROGRAPHIC_TRNSP, TRNSP, VEHICLE      
AIRCRAFT_FUNCTION AIR_TRNSP, TRNSP, VEHICLE      
AIRCRAFT_ICING_INTENSITY AIR_TRNSP, ICE, TRNSP, VEHICLE IR [AWS, Table 3.4]  
AIRCRAFT_ICING_LEVEL_BASE-
_ALTITUDE 		AIR_TRNSP, ICE, LOCATION, TRNSP IR [WMO182, "icing level"]  
AIRCRAFT_ICING_LEVEL_TOP-
_ALTITUDE 		AIR_TRNSP, ICE, LOCATION, TRNSP IR [WMO182, "icing level"]  
AIRCRAFT_ICING_TYPE AIR_TRNSP, ICE, TRNSP, VEHICLE IR [GMET, "aircraft icing"]  
AIRCRAFT_LANDING_GEAR-
_DEPLOYED_POSITION 		AIR_TRNSP, RATE_OR_RATIO, TRNSP, VEHICLE      
AIRCRAFT_LOAD_RESTRICTIONS AIR_TRNSP, TRNSP, VEHICLE IR [FACC, Annex B: ALC]  
AIRCRAFT_PROPULSION_TYPE AIR_TRNSP, TRNSP, VEHICLE      
AIRCRAFT_TURBULENCE_BASE-
_ALTITUDE 		AIR_TRNSP, ATMOSPHERE, LOCATION, TRNSP IR [JMCDM, "AIRCRAFT-TURBULENCE-OBSERVATION base dimension"]  
AIRCRAFT_TURBULENCE_FREQUENCY AIR_TRNSP, ATMOSPHERE, TRNSP IR [JMCDM, "AIRCRAFT-TURBULENCE-OBSERVATION frequency code"]  
AIRCRAFT_TURBULENCE_INTENSITY AIR_TRNSP, ATMOSPHERE, TRNSP IR [AIM]  
AIRCRAFT_TURBULENCE_TOP-
_ALTITUDE 		AIR_TRNSP, ATMOSPHERE, LOCATION, TRNSP IR [JMCDM, "AIRCRAFT-TURBULENCE-OBSERVATION top dimension"]  
AIRCRAFT_TYPE AIR_TRNSP, TRNSP, VEHICLE      
AIRSPACE_ALTITUDE_LIMITS AIR_TRNSP, DEMARCATION, TRNSP, USAGE_REGION IR [FACC, Annex B: SUA]  
AIRSPACE_IDENTIFIER AIR_TRNSP, IDENTIFICATION, TRNSP IR [FACC, Annex B: AIA]  
AIRSPACE_LIMITATION AIR_TRNSP, TRNSP, USAGE_REGION IR [FACC, Annex B: AUL]  
AIRSPACE_OPERATING-
_RESTRICTIONS 		AIR_TRNSP, TRNSP IR [FACC, Annex B: AUS]  
AIRSPACE_TYPE AIR_TRNSP, TRNSP IR [FACC, Annex B: AUB]  
ALBEDO EM_PHENOMENON, RATE_OR_RATIO IR [GMET, "albedo"]  
ALL_OBJECT_COUNT ABSTRACT_OBJECT      
ALONGSHORE_CURRENT_SPEED LITTORAL, RATE_OR_RATIO IR [BOWD]  
ALTITUDE_MSL LOCATION PR [WMO407, Section II.7.4]  
ANGULAR_SECTOR_WIDTH ANGULAR_MEASURE, DIMENSION      
ANTI_COLLISION_LIGHT_INTENSITY EM_PHENOMENON, LIGHTING_AND_VISIBILITY, RATE_OR_RATIO, TRNSP, VEHICLE IR [EBEV, 4.3.1.2, Bit: 16 (Anti-Collision Lights)] [EBEV, 4.3.1.1, Bit: 14 (Brake Lights)]
APERTURE_COVER_FRACTION LIGHTING_AND_VISIBILITY, RATE_OR_RATIO, SUPPORT_STRUCTURE IR [EBEV, 4.3.1.1, Bits: 9-11 (Hatch)] [EBEV, 4.3.1.2, Bits: 9-11 (Canopy)]
APERTURE_COVER_POSITION LOCATION IR [EBEV, 4.3.1.1, Bits: 9-11 (Hatch)] [EBEV, 4.3.1.2, Bits: 9-11 (Canopy)]
APERTURE_LENGTH DIMENSION, SUPPORT_STRUCTURE      
APERTURE_OPEN SUPPORT_STRUCTURE      
APERTURE_STATE SUPPORT_STRUCTURE      
APERTURE_WIDTH DIMENSION, SUPPORT_STRUCTURE      
APRON_HARD_STANDING_FUNCTION AIR_TRNSP IR [FAD, Annex B: HAC]  
AQUEDUCT_TYPE INFRASTRUCTURE IR [FACC, Annex B: ATC]  
AREA ABSTRACT_OBJECT, DIMENSION IR [FACC, Annex B: ARH]  
ARMOURED ABSTRACT_OBJECT, MILITARY_SCIENCE     [SOED, "armoured", 1]
ARRESTING_GEAR_TYPE AIR_TRNSP, DEVICE_AND_EQUIPMENT, TRNSP IR [FACC, Annex B: AGC]  
ASPECT_ANGLE ABSTRACT_OBJECT, ANGULAR_MEASURE      
ASSAULT_LANDING_CRAFT_TYPE HYDROGRAPHIC_TRNSP, TRNSP, VEHICLE      
ASSOCIATED_TEXT ABSTRACT_OBJECT IR [FACC, Annex B: TXT]  
ASW_CENTROID_PRESENT ABSTRACT_OBJECT, MILITARY_SCIENCE IR [OAML, Wind and Residual Noise Database]  
ASW_WINGED_AIRCRAFT_TYPE AIR_TRNSP, MILITARY_SCIENCE, TRNSP, VEHICLE      
ATM_BOUNDARY_LAYER_HEIGHT ATMOSPHERE, LOCATION IR [WMO182]  
ATM_CEILING AIRBORNE_PARTICLE, ATMOSPHERE, LIGHTING_AND_VISIBILITY, LOCATION IR [WMO182]  
ATM_CEILING_METHOD AIRBORNE_PARTICLE, ATMOSPHERE, LIGHTING_AND_VISIBILITY IR [GMET, "cloud height indicator"]  
ATM_FREEZING_LEVEL ATMOSPHERE, LOCATION PR [WMO182, "freezing level"]  
ATM_LIQUID_WATER_MIXING_RATIO ATMOSPHERE, RATE_OR_RATIO IR [GMET, "liquid water mixing ratio"]  
ATM_PRESSURE ATMOSPHERE PR [WMO182, "atmospheric pressure"]  
ATM_PRESSURE_CHANGE ATMOSPHERE, RATE_OR_RATIO IR [WMO306, Volume 1]  
ATM_PRESSURE_CHANGE_24_HOUR ATMOSPHERE, RATE_OR_RATIO IR [WMO306, Volume 1]  
ATM_PRESSURE_CHANGE_3_HOUR ATMOSPHERE, RATE_OR_RATIO IR [WMO306, Volume 1]  
ATM_PRESSURE_CHANGE_QUALITY ATMOSPHERE IR [QCMO]  
ATM_PRESSURE_CHANGE_TENDENCY-
_CATEGORY 		ATMOSPHERE IR [WMO306]  
ATM_PRESSURE_MEAN_CLIM ATMOSPHERE, RATE_OR_RATIO IR [JMCDM, "ATMOSPHERIC-PRESSURE-CLIMATOLOGY mean pressure rate"]  
ATM_PRESSURE_MEAN_CLIM_STD_DEV ATMOSPHERE IR [JMCDM, "ATMOSPHERIC-PRESSURE-OBSERVATION-LEVEL pressure quality code"]  
ATM_PRESSURE_QUALITY ATMOSPHERE IR [QCMO]  
ATM_PRESSURE_REDUCED_CLIM-
_STD_DEV 		ATMOSPHERE IR [WMO182] [GMET]
ATM_PRESSURE_REDUCED_MSL ATMOSPHERE IR [WMO182] [GMET]
ATM_PROFILE_MEASUREMENT-
_TECHNIQUE 		ALGORITHM_RELATED, ATMOSPHERE      
ATM_TURBULENCE_TYPE AIR_TRNSP, ATMOSPHERE, TRNSP IR [GMET, "aircraft turbulence"]  
ATM_VERTICAL_REFERENCE ABSTRACT_OBJECT, ATMOSPHERE, SURVEY IR [FACC, Annex B: ICL]  
ATS_ROUTE_COMPONENT_LENGTH AIR_TRNSP, DIMENSION, TRNSP IR [FACC, Annex B: ALN]  
ATS_ROUTE_COMPONENT_LEVEL AIR_TRNSP, TRNSP IR [FACC, Annex B: ATL]  
ATS_ROUTE_COMPONENT_WIDTH AIR_TRNSP, DIMENSION, TRNSP IR [FACC, Annex B: AWD]  
ATS_ROUTE_LOWEST_ALTITUDE AIR_TRNSP, COMMUNICATION, LOCATION, TRNSP IR [FACC, Annex B: MOC]  
ATS_ROUTE_OPPOSITE_FLOW-
_DIRECTION 		AIR_TRNSP, ANGULAR_MEASURE, TRNSP IR [FACC, Annex B: ODF]  
ATS_ROUTE_TYPE AIR_TRNSP, TRNSP IR [IAN11]  
ATS_USE_TYPE AIR_TRNSP, TRNSP, USAGE_REGION IR [FACC, Annex B: AUA]  
ATTACHED ABSTRACT_OBJECT     [SOED, "attach", 5]
ATTACK_WINGED_AIRCRAFT_TYPE AIR_TRNSP, MILITARY_SCIENCE, TRNSP, VEHICLE      
AUXILIARY_VESSEL_TYPE HYDROGRAPHIC_TRNSP, TRNSP, VEHICLE      
AVAILABLE_FACILITIES_TYPE USAGE_REGION IR [FACC, Annex B: AFA]  
AVERAGING_PERIOD TIME      
AVERAGING_PERIOD_CATEGORY TIME      
AVIATION_LOCATION_ID_VALUE_SET AIR_TRNSP, IDENTIFICATION, TRNSP      
AVIATION_LOCATION_IDENTIFIER AIR_TRNSP, IDENTIFICATION, TRNSP IR [FACC, Annex B: IKO]  

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