EDCS Attribute Symbolic Constant: EAC_VARIABLE_SEA_STATE_FRACTION

EDCS Attribute Code: 1499

Definition:
A number between 0 and 1 representing the linearly-scaled fraction of <<SEA_STATE_CATEGORY>> reports indicating varying <<SEA_STATE_CATEGORY>>; the variable sea state fraction.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PURE_NUMBER

EDCS Group Labels: RATE_OR_RATIO, WATERBODY_SURFACE

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VARIABLE_WIND_END_DIRECTION

EDCS Attribute Code: 1500

Definition:
The <<GEODETIC_AZIMUTH>> of the ending extreme in <<WIND_DIRECTION>> under variable <<WIND_DIRECTION>> conditions. Variable wind end direction is normally only reported for <<WIND_SPEED>>s exceeding 3,09 metres per second (six knots) and the variability must equal or exceed a range of 60 arc degrees during the preceding two minutes.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE, ATMOSPHERE

Reference Type: PR

Reference: [WMO182]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VARIABLE_WIND_START_DIRECTION

EDCS Attribute Code: 1501

Definition:
The <<GEODETIC_AZIMUTH>> of the starting extreme in <<WIND_DIRECTION>> under variable <<WIND_DIRECTION>> conditions. Variable wind start direction is normally only reported for <<WIND_SPEED>>s exceeding 3,09 metres per second (six knots) and the variability must equal or exceed a range of 60 arc degrees during the preceding two minutes.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE, ATMOSPHERE

Reference Type: PR

Reference: [WMO182]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VECTOR_AZIMUTH_GEODETIC

EDCS Attribute Code: 1502

Definition:
The smallest angle from vector A to vector B where A is a particular reference vector fixed in the local x-y plane, perpendicular to the local normal and defined by the projection onto this plane of the vector toward geodetic north and B is the projection onto the surface plane of the vector of interest. The positive sense is clockwise when looking in the <DIRECTION> of the cross product AxB.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE

Reference Type: IR

Reference: [TRHT]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VECTOR_AZIMUTH_LOCAL

EDCS Attribute Code: 1503

Definition:
The smallest angle from vector A to vector B where A is the local x-axis fixed in the local x-y plane, perpendicular to the local normal) and B is the projection onto the surface plane of the vector of interest. The positive sense is clockwise when looking in the <DIRECTION> of the cross product AxB.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE

Reference Type: IR

Reference: [TRHT]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VECTOR_AZIMUTH_MAGNETIC

EDCS Attribute Code: 1504

Definition:
The smallest angle from vector A to vector B where A is the reference vector with origin in the local x-y plane, perpendicular to the local normal, and defined by the projection onto this plane of the vector toward magnetic north and B is the projection onto the surface plane of the vector of interest. The positive sense is clockwise when looking in the <DIRECTION> of the cross product AxB.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE

Reference Type: IR

Reference: [TRHT]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VECTOR_ELEV_ANGLE_HORIZONTAL

EDCS Attribute Code: 1505

Definition:
The <<VECTOR_ELEV_ANGLE_LOCAL>> with respect to the local x-y plane, perpendicular to the local normal.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VECTOR_ELEV_ANGLE_LOCAL

EDCS Attribute Code: 1506

Definition:
The smallest angle from vector A to vector B where B is the vector of interest and A is the projection of B on the local x-y plane, perpendicular to the local normal; the elevation angle. The positive sense is clockwise when looking in the <DIRECTION> of the cross product AxB.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE

Reference Type: IR

Reference: [TRHT]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEGETATION_RESTRICTED_SPEED

EDCS Attribute Code: 1507

Definition:
A number between 0 and 1 inclusive representing the linearly-scaled fractional restriction of the <<SPEED>> of ground <GROUND_VEHICLE>s as a fraction of maximum speed. Zero means no restriction (maximum speed) and one means completely restricted and immobilized.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PURE_NUMBER

EDCS Group Labels: LAND_TRNSP, RATE_OR_RATIO, TRNSP, VEHICLE

Reference Type: IR

Reference: [FACC, Annex B: VRC]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEGETATION_TYPE

EDCS Attribute Code: 1508

Definition:
The type of <VEGETATION>.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	AGRI_SCATTERED_FORESTS	EEC_VEGTY_AGRI_SCATTERED_FORESTS	<CROP_LAND> is the predominant <VEGETATION> with 25 percent to 50 percent of the <REGION> covered with scattered <FOREST>s or rows of <TREE>s.	IR	[FACC, Annex B, VEG:5]
2	AGRI_SCATTERED_TREES	EEC_VEGTY_AGRI_SCATTERED_TREES	<CROP_LAND> is the predominant <VEGETATION> with 25 percent to 50 percent of the <REGION> covered with scattered <TREE>s or rows of <TREE>s.	IR	[FACC, Annex B, VEG:57]
3	ALMOND	EEC_VEGTY_ALMOND	Almond tree.	IR	[FACC, Annex B, VEG:42]	[SOED, "almond-tree"]
4	ALPINE_TUNDRA	EEC_VEGTY_ALPINE_TUNDRA	Alpine <TUNDRA>.	IR	[FACC, Annex B, VEG:65]
5	APPLE	EEC_VEGTY_APPLE	Apple tree.	IR	[FACC, Annex B, VEG:40]	[SOED, "apple-tree"]
6	ARTEMISIA	EEC_VEGTY_ARTEMISIA	Artemisia.	n/a		[SOED, "artemisia"]
7	ASH	EEC_VEGTY_ASH	Ash tree.	IR	[FACC, Annex B, VEG:47]	[SOED, "ash-tree"]
8	BAMBOO	EEC_VEGTY_BAMBOO	<BAMBOO>.	n/a
9	BEECH	EEC_VEGTY_BEECH	Beech.	IR	[FACC, Annex B, VEG:28]	[SOED, "beech"]
10	BIRCH	EEC_VEGTY_BIRCH	Birch.	IR	[FACC, Annex B, VEG:46]	[SOED, "birch", 1]
11	BLACK_SPRUCE	EEC_VEGTY_BLACK_SPRUCE	A small spruce <TREE> of boggy tracts of north-eastern North America having spreading branches with dense foliage and having blue-green needles and small egg-shaped cones; black spruce [AHD, "black spruce"].	n/a
12	BOG	EEC_VEGTY_BOG	<BOG>.	n/a
13	BRUSHLAND_MEDIUM_TO_DENSE	EEC_VEGTY_BRUSHLAND_MEDIUM_TO_DENSE	<BRUSH_LAND> where the <PLANT> density covers from 5 to 50 percent of the <LAND>; medium to dense brushland.	IR	[FACC, Annex B, VEG:54]
14	BRUSHLAND_OPEN_TO_MEDIUM	EEC_VEGTY_BRUSHLAND_OPEN_TO_MEDIUM	<BRUSH_LAND> where the <PLANT> density covers from 50 to 100 percent of the <LAND>; open to medium density brushland.	IR	[FACC, Annex B, VEG:53]
15	CAROB	EEC_VEGTY_CAROB	Carob.	IR	[FACC, Annex B, VEG:41]	[SOED, "carob", 1]
16	CASUARINA	EEC_VEGTY_CASUARINA	Casuarina.	IR	[FACC, Annex B, VEG:11]	[SOED, "casuarina"]
17	CHESTNUT	EEC_VEGTY_CHESTNUT	Chestnut.	IR	[FACC, Annex B, VEG:36]	[SOED, "chestnut tree"]
18	CITRUS	EEC_VEGTY_CITRUS	Citrus.	IR	[FACC, Annex B, VEG:43]	[SOED, "citrus"]
19	CONIFER	EEC_VEGTY_CONIFER	Conifer.	IR	[FACC, Annex B, VEG:12]	[SOED, "conifer"]
20	CORK_OAK	EEC_VEGTY_CORK_OAK	Cork-oak.	IR	[FACC, Annex B, VEG:26]	[SOED, "cork-oak"]
21	CRANBERRY	EEC_VEGTY_CRANBERRY	Cranberry tree.	IR	[FACC, Annex B, VEG:6]	[SOED, "cranberry-tree"]
22	CYPRESS	EEC_VEGTY_CYPRESS	Cypress.	IR	[FACC, Annex B, VEG:38]	[SOED, "cypress", 1]
23	DECIDUOUS_UNSPECIFIED	EEC_VEGTY_DECIDUOUS_UNSPECIFIED	Unspecified deciduous <VEGETATION>.	IR	[FACC, Annex B, VEG:24]
24	DRY_CROPS	EEC_VEGTY_DRY_CROPS	Crops grown in moist or dry conditions that are generally free of other <VEGETATION> (except near <FENCE>s or <HEDGEROW>s), such as grains, tubers, legumes, and vegetables; dry crops.	IR	[FACC, Annex B, VEG:1]
25	ELM	EEC_VEGTY_ELM	Elm.	IR	[FACC, Annex B, VEG:44]	[SOED, "elm", 1]
26	EUCALYPTUS	EEC_VEGTY_EUCALYPTUS	Eucalyptus.	IR	[FACC, Annex B, VEG:29]	[SOED, "eucalyptus", 1]
27	EVERGREEN_UNSPECIFIED	EEC_VEGTY_EVERGREEN_UNSPECIFIED	Unspecified evergreen <VEGETATION>.	IR	[FACC, Annex B, VEG:25]
28	FILAO	EEC_VEGTY_FILAO	A variety of tropical or sub-tropical <TREE>; filao tree.	IR	[FACC, Annex B, VEG:18]	[S57A, Attribute, CATVEG:22]
29	FIR	EEC_VEGTY_FIR	Fir.	IR	[FACC, Annex B, VEG:27]	[SOED, "fir", 1]
30	FOREST_CLEARING	EEC_VEGTY_FOREST_CLEARING	Forest clearing.	IR	[FACC, Annex B, VEG:52]
31	GARDEN	EEC_VEGTY_GARDEN	Garden.	IR	[FACC, Annex B, VEG:66]	[SOED, "garden", 1]
32	GRASS	EEC_VEGTY_GRASS	<GRASS>.	n/a
33	GRASS_LAND	EEC_VEGTY_GRASS_LAND	<GRASS_LAND>.	n/a
34	GRASS_LAND_SCATTERED_TREES	EEC_VEGTY_GRASS_LAND_SCATTERED_TREES	<<<GRASS_LAND>>> with scattered <TREE>s.	IR	[FACC, Annex B, VEG:9]
35	GROVE	EEC_VEGTY_GROVE	Grove.	IR	[FACC, Annex B, VEG:20]	[SOED, "grove"]
36	HARDWOOD	EEC_VEGTY_HARDWOOD	Hardwood.	n/a		[SOED, "hardwood tree"]
37	HAZEL	EEC_VEGTY_HAZEL	Hazel.	IR	[FACC, Annex B, VEG:48]	[SOED, "hazel", 1]
38	HEATH	EEC_VEGTY_HEATH	Heath.	IR	[FACC, Annex B, VEG:67]	[SOED, "heath", 2]
39	ILEX	EEC_VEGTY_ILEX	Ilex.	IR	[FACC, Annex B, VEG:45]	[SOED, "ilex", 2]
40	JOSHUA_TREE	EEC_VEGTY_JOSHUA_TREE	Joshua <TREE>.	n/a		[SOED, "Joshua", 2]
41	KELP	EEC_VEGTY_KELP	Kelp.	IR	[FACC, Annex B, VEG:60]	[S57A, Attribute, CATWED:1]
42	LARCH	EEC_VEGTY_LARCH	Larch.	IR	[FACC, Annex B, VEG:37]	[SOED, "larch", 1]
43	MAIZE	EEC_VEGTY_MAIZE	Maize.	IR	[FACC, Annex B, VEG:23]	[SOED, "corn", 1]
44	MANGROVE	EEC_VEGTY_MANGROVE	Mangrove.	IR	[FACC, Annex B, VEG:19]	[SOED, "mangrove", 1]
45	MAPLE	EEC_VEGTY_MAPLE	Maple.	IR	[FACC, Annex B, VEG:33]	[SOED, "maple", 1]
46	MARSH	EEC_VEGTY_MARSH	<MARSH>.	n/a
47	MIXED_CROPS	EEC_VEGTY_MIXED_CROPS	A mixture of arable crops.	PR	[S57A, Attribute, CATVEG:10]
48	MIXED_DECIDUOUS	EEC_VEGTY_MIXED_DECIDUOUS	In addition to broadleaf deciduous <TREE>s, also includes deciduous conifers (for example: Dawn, Redwood, and Larch species); mixed deciduous.	IR	[FACC, Annex B, VEG:49]
49	MIXED_TREES	EEC_VEGTY_MIXED_TREES	Contains both evergreen coniferous and deciduous <TREE>s in proportions varying between 40 and 60 percent.	IR	[FACC, Annex B, VEG:50]
50	MOSS	EEC_VEGTY_MOSS	Moss.	IR	[FACC, Annex B, VEG:59]	[SOED, "moss", 3]
51	MOUNTAIN_BIRCH	EEC_VEGTY_MOUNTAIN_BIRCH	Betula pubenscens, subspecies Czerepanovii; mountain birch.	IR	[SNLS]
52	NIPA_PALM	EEC_VEGTY_NIPA_PALM	Nipa palm.	IR	[FACC, Annex B, VEG:16]	[SOED, "nipa", 2]
53	NON_TREED	EEC_VEGTY_NON_TREED	Herb or shrub; non-treed.	IR	[FACC, Annex B, VEG:51]
54	OAK	EEC_VEGTY_OAK	Oak.	IR	[FACC, Annex B, VEG:30]	[SOED, "oak", 1]
55	OLIVE	EEC_VEGTY_OLIVE	Olive tree.	IR	[FACC, Annex B, VEG:35]	[SOED, "olive-tree"]
56	PALM	EEC_VEGTY_PALM	Palm tree.	IR	[FACC, Annex B, VEG:17]	[SOED, "palm-tree"]
57	PEACH	EEC_VEGTY_PEACH	Peach tree.	IR	[FACC, Annex B, VEG:39]	[SOED, "peach-tree"]
58	PEAT	EEC_VEGTY_PEAT	Peat.	IR	[FACC, Annex B, VEG:7]	[SOED, "peat", 1]
59	PINE	EEC_VEGTY_PINE	Pine.	IR	[FACC, Annex B, VEG:31]	[SOED, "pine", n2 1]
60	POPLAR	EEC_VEGTY_POPLAR	Poplar.	IR	[FACC, Annex B, VEG:34]	[SOED, "poplar", 1]
61	REED	EEC_VEGTY_REED	Reed.	IR	[FACC, Annex B, VEG:58]	[SOED, "reed", 2]
62	RHANTERIUM	EEC_VEGTY_RHANTERIUM	A perennial, dwarf shrub of south-west Asia that provides natural salts and has long roots reach down into the <SOIL> in search of water; rhanterium.	IR	[DIB]
63	RICE_FIELD	EEC_VEGTY_RICE_FIELD	<RICE_FIELD>.	n/a		[FACC, Annex B, VEG:4]
64	SARGASSUM	EEC_VEGTY_SARGASSUM	Sargassum.	IR	[FACC, Annex B, VEG:63]	[SOED, "sargassum"]
65	SEA_GRASS	EEC_VEGTY_SEA_GRASS	Sea-grass.	IR	[FACC, Annex B, VEG:62]	[S57A, Attribute, CATWED:3]
66	SEAWEED	EEC_VEGTY_SEAWEED	<SEAWEED>.	n/a
67	SWAMP	EEC_VEGTY_SWAMP	<SWAMP>.	n/a
68	SWAMP_DECIDUOUS	EEC_VEGTY_SWAMP_DECIDUOUS	A <<<SWAMP>>> where fewer than 40 percent of the <TREE>s retain their foliage throughout the year; a deciduous swamp.	IR	[PTADB, 3.15.2.1.2.g.2, "Deciduous Swamp"]
69	SWAMP_EVERGREEN	EEC_VEGTY_SWAMP_EVERGREEN	A <<<SWAMP>>> where more than 60 percent of the <TREE>s retain their foliage throughout the year; an evergreen swamp.	IR	[PTADB, 3.15.2.1.2.g.1, "Evergreen/Coniferous Swamp"]
70	SWAMP_MANGROVE	EEC_VEGTY_SWAMP_MANGROVE	A <<<SWAMP>>> with a dense growth of <TREE>s with tangled aerial roots usually found along seacoasts and banks of tidewater streams in tropical and semi-tropical <REGION>s; a mangrove swamp.	IR	[PTADB, 3.15.2.1.2.g.4, "Mangrove Swamp"]
71	SWAMP_MIXED	EEC_VEGTY_SWAMP_MIXED	A <<<SWAMP>>> where between 40 and 60 percent of the <TREE>s retain their foliage throughout the year; a mixed swamp.	IR	[PTADB, 3.15.2.1.2.g.3, "Mixed Swamp"]
72	SYSTEMATIC_DECIDUOUS_PLANTING	EEC_VEGTY_SYSTEMATIC_DECIDUOUS_PLANTING	A <<<SYSTEMATIC_PLANTING>>> where less than 40 percent of the <TREE>s retain their foliage throughout the year; includes both broadleaf and coniferous/deciduous <TREE>s.	IR	[PTADB, 3.15.2.1.2.d.2, "Deciduous Orchard/Plantation/Nursery"]
73	SYSTEMATIC_EVERGREEN_PLANTING	EEC_VEGTY_SYSTEMATIC_EVERGREEN_PLANTING	A <<<SYSTEMATIC_PLANTING>>> where more than 60 percent of the <TREE>s retain their foliage throughout the year; includes both broadleaf and evergreen coniferous <TREE>s.	IR	[PTADB, 3.15.2.1.2.d.1, "Evergreen/Coniferous Orchard/Plantation/Nursery"]
74	SYSTEMATIC_MIXED_PLANTING	EEC_VEGTY_SYSTEMATIC_MIXED_PLANTING	A <<<SYSTEMATIC_PLANTING>>> that contains both evergreen coniferous and deciduous <TREE>s in proportions varying between 40 to 60 percent.	IR	[PTADB, 3.15.2.1.2.d.3, "Mixed Orchard/Plantation/Nursery"]
75	SYSTEMATIC_PALM_PLANTING	EEC_VEGTY_SYSTEMATIC_PALM_PLANTING	A <<<SYSTEMATIC_PLANTING>>> that contains <<<PALM>>>s.	IR	[PTADB, 3.15.2.1.2.d.4, "Palm Orchard/Plantation/Nursery"]
76	SYSTEMATIC_PLANTING	EEC_VEGTY_SYSTEMATIC_PLANTING	A <SYSTEMATIC_TREE_PLANTING> of rows of evenly spaced perennial <TREE>s, generally free of underbrush and vines, yielding commercial products exclusive of timber (for example: nuts, spices, and/or fruits).	IR	[PTADB, 3.15.2.1.2.d, "Commercially Treed Areas"]
77	TROPICAL_GRASS	EEC_VEGTY_TROPICAL_GRASS	Tropical <GRASS>.	IR	[FACC, Annex B, VEG:10]
78	TUNDRA	EEC_VEGTY_TUNDRA	<TUNDRA>.	n/a
79	TUNDRA_BUSH_SCRUB	EEC_VEGTY_TUNDRA_BUSH_SCRUB	Bush or shrub <<<TUNDRA>>>.	IR	[PTADB, Appendix I, 30.2.2.a.2, "Brush (scrub) Tundra"]	[FACC, Annex B, VEG]
80	TUNDRA_HERBACEOUS	EEC_VEGTY_TUNDRA_HERBACEOUS	Herbaceous <<<TUNDRA>>>.	IR	[PTADB, Appendix I, 30.2.2.a.3, "Herbaceous"]	[FACC, Annex B, VEG]
81	TUNDRA_WET	EEC_VEGTY_TUNDRA_WET	Wet <<<TUNDRA>>>.	IR	[FACC, Annex B, VEG:64]
82	VINEYARDS_HOPS_GINSENG	EEC_VEGTY_VINEYARDS_HOPS_GINSENG	A field containing vertical protective <STRUCTURE>s with <<HEIGHT_AGL>> less than or equal to 3 metres, placed in a regularly spaced pattern, usually rows, supporting <VEGETATION> (for example: vines, hops, ginseng, and/or juvenile <TREE>s) with supported shading <STRUCTURE>s.	IR	[PTADB, 3.15.2.1.2.j, "Vineyards/Hops/Ginseng"]	[FACC, Annex B, VEG]
83	WALNUT	EEC_VEGTY_WALNUT	Walnut tree.	IR	[FACC, Annex B, VEG:32]	[SOED, "walnut-tree"]
84	WET_CROPS	EEC_VEGTY_WET_CROPS	Wet crops.	IR	[PTADB, 3.15.2.1.2.a.2, "Wet Crops"]	[FACC, Annex B, VEG]
85	WHEAT	EEC_VEGTY_WHEAT	Wheat.	IR	[FACC, Annex B, VEG:22]	[SOED, "wheat", 1]
86	WITH_TREES	EEC_VEGTY_WITH_TREES	Including <TREE>s.	IR	[FACC, Annex B, VEG:55]	[S57A, Attribute, CATVEG:13]
87	WITHOUT_TREES	EEC_VEGTY_WITHOUT_TREES	Not including <TREE>s.	IR	[FACC, Annex B, VEG:56]

EDCS Group Labels: LIVING_ORGANISM, PLANT

Reference Type: IR

Reference: [FACC, Annex B: VEG]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_CAPACITY

EDCS Attribute Code: 1509

Definition:
The number of <VEHICLE>s that an <OBJECT> can accommodate; the vehicle capacity.

EDCS Attribute Value Data Type: COUNT

EDCS Group Labels: ABSTRACT_OBJECT, TRNSP

Reference Type: IR

Reference: [FACC, Annex B: VEC]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_MAINTENANCE_AVAILABLE

EDCS Attribute Code: 1510

Definition:
The type of vehicle maintenance <FACILITY>s available at a <LOCATION> or in the near vicinity.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	AIRCRAFT_FABRICATION	EEC_VEHMAINTAVAIL_AIRCRAFT_FABRICATION	Fabrication of <AIRCRAFT>.	IR	[FACC, Annex B, MFA:8]
2	AIRCRAFT_REPAIR	EEC_VEHMAINTAVAIL_AIRCRAFT_REPAIR	Maintenance and repair of <AIRCRAFT>.	IR	[FACC, Annex B, MFA:7]
3	BARGE_FABRICATION	EEC_VEHMAINTAVAIL_BARGE_FABRICATION	Fabrication of barges.	IR	[FACC, Annex B, MFA:4]
4	BARGE_REPAIR	EEC_VEHMAINTAVAIL_BARGE_REPAIR	A <FACILITY> used for barge maintenance and repair.	IR	[FACC, Annex B, MFA:3]
5	BOAT_HOIST	EEC_VEHMAINTAVAIL_BOAT_HOIST	<EQUIPMENT> used to lift a small <VESSEL>.	IR	[FACC, Annex B, MFA:14]
6	GENERAL_FABRICATION	EEC_VEHMAINTAVAIL_GENERAL_FABRICATION	General fabrication of <VEHICLE>s.	IR	[FACC, Annex B, MFA:17]
7	GENERAL_ELECTRICAL_FABRICATION	EEC_VEHMAINTAVAIL_GENERAL_ELECTRICAL_FABRICATION	General electrical fabrication.	IR	[FACC, Annex B, MFA:16]
8	GENERAL_MECHANICAL_FABRICATION	EEC_VEHMAINTAVAIL_GENERAL_MECHANICAL_FABRICATION	General mechanical fabrication.	IR	[FACC, Annex B, MFA:15]
9	INSPECTION_RAMP	EEC_VEHMAINTAVAIL_INSPECTION_RAMP	A <RAMP> at a specific <LOCATION> used to validate the ability of an item to perform its desired function; an inspection ramp.	IR	[FACC, Annex B, MFA:13]
10	LOCOMOTIVE_FABRICATION	EEC_VEHMAINTAVAIL_LOCOMOTIVE_FABRICATION	Fabrication of <LOCOMOTIVE_ENGINE>s.	IR	[FACC, Annex B, MFA:6]
11	LOCOMOTIVE_REPAIR	EEC_VEHMAINTAVAIL_LOCOMOTIVE_REPAIR	Maintenance and repair of <LOCOMOTIVE_ENGINE>s.	IR	[FACC, Annex B, MFA:5]
12	NONE_AVAILABLE	EEC_VEHMAINTAVAIL_NONE_AVAILABLE	No maintenance <FACILITY>s for <VEHICLE>s are available.	IR	[FACC, Annex B, MFA:995]
13	ROAD_VEH_FABRICATION	EEC_VEHMAINTAVAIL_ROAD_VEH_FABRICATION	Fabrication of <GROUND_VEHICLE>s that operate on <ROAD>s.	IR	[FACC, Annex B, MFA:10]
14	ROAD_VEH_REPAIR	EEC_VEHMAINTAVAIL_ROAD_VEH_REPAIR	Maintenance and repair of <GROUND_VEHICLE>s that operate on <ROAD>s.	IR	[FACC, Annex B, MFA:9]
15	SAIL_FABRICATION	EEC_VEHMAINTAVAIL_SAIL_FABRICATION	Fabrication of sails for <VESSEL>s.	IR	[FACC, Annex B, MFA:12]
16	VESSEL_FABRICATION	EEC_VEHMAINTAVAIL_VESSEL_FABRICATION	Fabrication of <VESSEL>s.	IR	[FACC, Annex B, MFA:2]
17	VESSEL_REPAIR	EEC_VEHMAINTAVAIL_VESSEL_REPAIR	Maintenance and repair of <VESSEL>s.	IR	[FACC, Annex B, MFA:1]
18	VESSEL_SALVAGE	EEC_VEHMAINTAVAIL_VESSEL_SALVAGE	Recovery of parts or sections of <VESSEL>s for future use; vessel salvage.	IR	[FACC, Annex B, MFA:11]

EDCS Group Labels: TRNSP, USAGE_REGION

Reference Type: IR

Reference: [FACC, Annex B: MFA]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_MARKING

EDCS Attribute Code: 1511

Definition:
The marking displayed on a <VEHICLE>, typically including echelon designation and coded bumper number. The marking is formatted in a Basic Latin string containing twelve characters as specified by [EBEV, Section 4.5, Entity Marking - Character Set].

EDCS Attribute Value Data Type: CONSTRAINED_STRING

EDCS Group Labels: TRNSP, VEHICLE

Reference Type: IR

Reference: [EBEV, 4.5 (Entity Marking)]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_SMOKE_TYPE

EDCS Attribute Code: 1512

Definition:
The type or origin of <SMOKE> from a <VEHICLE>.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	ENGINE	EEC_VEHSMOKTY_ENGINE	Engine <SMOKE>.	n/a
2	ENGINE_WITH_PLUME	EEC_VEHSMOKTY_ENGINE_WITH_PLUME	Engine <SMOKE> with <PLUME>.	n/a
3	NONE_PRESENT	EEC_VEHSMOKTY_NONE_PRESENT	No <SMOKE> is present.	n/a
4	PLUME	EEC_VEHSMOKTY_PLUME	<PLUME>.	n/a

EDCS Group Labels: AIRBORNE_PARTICLE, ATMOSPHERE, TRNSP

Reference Type: IR

Reference: [EBEV, 4.3.1.1, Bits: 5-6 (Smoke)]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_STORAGE_AREA

EDCS Attribute Code: 1513

Definition:
The total <<AREA>> of a <STRUCTURE> which can be used for the storage of <VEHICLE>s.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: AREA

EDCS Group Labels: DIMENSION, SUPPORT_STRUCTURE, TRNSP

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_STORAGE_DOOR_PRI_HEIGHT

EDCS Attribute Code: 1514

Definition:
The <<HEIGHT>> of the primary <STRUCTURE_ENTRANCE_AND_OR_EXIT> for <VEHICLE>s.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: DIMENSION, SUPPORT_STRUCTURE, TRNSP

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_STORAGE_DOOR_PRI_WIDTH

EDCS Attribute Code: 1515

Definition:
The <<WIDTH>> of the primary <STRUCTURE_ENTRANCE_AND_OR_EXIT> for <VEHICLE>s.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: DIMENSION, SUPPORT_STRUCTURE, TRNSP

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_TRAFFIC_FLOW

EDCS Attribute Code: 1516

Definition:
The type of flow-pattern of <VEHICLE>s on a <TRANSPORTATION_ROUTE>; the vehicle traffic flow.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	INBOUND	EEC_VEHTRAFFLOW_INBOUND	Traffic flow in a general <DIRECTION> toward a <MARINE_PORT> or similar destination; inbound.	IR	[S57A, Attribute, TRAFIC:1]
2	ONE_WAY	EEC_VEHTRAFFLOW_ONE_WAY	Traffic flow in one general <DIRECTION> only; one way.	PR	[S57A, Attribute, TRAFIC:3]
3	OUTBOUND	EEC_VEHTRAFFLOW_OUTBOUND	Traffic flow in a general <DIRECTION> away from a <MARINE_PORT> or similar point of origin; outbound.	PR	[S57A, Attribute, TRAFIC:2]
4	TWO_WAY	EEC_VEHTRAFFLOW_TWO_WAY	Traffic flow in two generally opposite <DIRECTION>s; two way.	PR	[S57A, Attribute, TRAFIC:4]

EDCS Group Labels: TRNSP

Reference Type: IR

Reference: [FACC, Annex B: TRF]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICLE_TRAFFIC_GEODETIC_DIRECTION

EDCS Attribute Code: 1517

Definition:
The <<GEODETIC_AZIMUTH>> of the <DIRECTION> of <VEHICLE>s on a <TRANSPORTATION_ROUTE>; the vehicle traffic geodetic direction.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PLANE_ANGLE

EDCS Group Labels: ANGULAR_MEASURE, TRNSP

Reference Type: IR

Reference: [FACC, Annex B: DF1, DF2, DF3, and DF4]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VEHICULAR_SPEED_LIMIT

EDCS Attribute Code: 1518

Definition:
The maximum <<SPEED>> legally permitted on a given stretch of a <LAND_TRANSPORTATION_ROUTE>; the vehicular speed limit.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: SPEED

EDCS Group Labels: LAND_TRNSP, RATE_OR_RATIO, TRNSP

Reference Type: IR

Reference: [FACC, Annex B: SPM]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VELOCITY

EDCS Attribute Code: 1519

Definition:
<<SPEED>> in a <DIRECTION>; velocity.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: SPEED

EDCS Group Labels: RATE_OR_RATIO

Reference Type: n/a

Reference: none

Supplemental References: [SOED, "velocity", 3]

EDCS Attribute Symbolic Constant: EAC_VENTILATION_FILTER_EFFICIENCY

EDCS Attribute Code: 1520

Definition:
The fraction of <PARTICLE>s in the <AIR> removed as the <AIR> makes a single pass through ventilation filters; the ventilation filter efficiency.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: SURFACE_DENSITY

EDCS Group Labels: AIRBORNE_PARTICLE, ATMOSPHERE, INFRASTRUCTURE, RATE_OR_RATIO

Reference Type: IR

Reference: [HVACS]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VENTILATION_INFILTRATION_RATE

EDCS Attribute Code: 1521

Definition:
The rate at which a ventilation <SYSTEM> draws in exterior <AIR>. The rate is expressed as the fraction of the <<VOLUME>> of <AIR> in the <STRUCTURE> drawn in per unit time.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: RATE

EDCS Group Labels: ATMOSPHERE, INFRASTRUCTURE, RATE_OR_RATIO, SUPPORT_STRUCTURE

Reference Type: IR

Reference: [HVACS]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_CLEARANCE_CLOSED

EDCS Attribute Code: 1522

Definition:
The vertical clearance of an <OBJECT> (for example: a closed lifting <BRIDGE>) in its closed condition measured from the ground <SURFACE> underneath to the <OBJECT> overhead.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: ABSTRACT_OBJECT, DIMENSION

Reference Type: IR

Reference: [FACC, Annex B: VCC]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_CLEARANCE_OPENED

EDCS Attribute Code: 1523

Definition:
The vertical clearance of an <OBJECT> (for example: an opened lifting <BRIDGE>) in its opened condition measured from the ground <SURFACE> underneath to the <OBJECT> overhead.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: ABSTRACT_OBJECT, DIMENSION

Reference Type: IR

Reference: [FACC, Annex B: VCO]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_CLEARANCE_SAFE

EDCS Attribute Code: 1524

Definition:
The safe vertical clearance of an <OBJECT> measured from the ground <SURFACE> underneath to the <OBJECT> overhead.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: ABSTRACT_OBJECT, DIMENSION

Reference Type: IR

Reference: [FACC, Annex B: VCS]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_DATUM_IDENTIFIER

EDCS Attribute Code: 1525

Definition:
The designation of a <VERTICAL_DATUM>; vertical datum identifier.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	EARTH_GRAVITATIONAL_MODEL_1996	EEC_VERTDTMID_EARTH_GRAVITATIONAL_MODEL_1996	The geopotential surface defined by the WGS 84 Earth Gravitational Model 1996 that is closely associated with the mean ocean surface.	PR	[83502T, Section 6]
2	MEAN_SEA_LEVEL	EEC_VERTDTMID_MEAN_SEA_LEVEL	A continuous surface over the oceans (or its hypothetical extension under the land masses) defined by the mean of sea level surfaces approximated and observed over 19 years; mean sea level (MSL).	PR	[BOWD, Section 913]
3	WGS_1984_ELLIPSOID	EEC_VERTDTMID_WGS_1984_ELLIPSOID	WGS 84 Ellipsoid.	PR	[83502T, Section 3]
4	WGS_1984_GEOID	EEC_VERTDTMID_WGS_1984_GEOID	The geopotential surface defined by the WGS 84 Earth Gravity Model that is closely associated with the mean ocean surface; WGS 84 Geoid.	PR	[83502T, Section 6]

EDCS Group Labels: LOCATION, SURVEY

Reference Type: IR

Reference: [GMCG]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_LOAD_BEARING_CAPACITY

EDCS Attribute Code: 1526

Definition:
The maximum distributed load per unit cross-section a vertical <OBJECT> can support; the vertical load bearing capacity.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: SURFACE_DENSITY

EDCS Group Labels: ABSTRACT_OBJECT, RATE_OR_RATIO

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_MEASUREMENT_QUALITY

EDCS Attribute Code: 1527

Definition:
The quality of a vertical measurement.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	ESTIMATED	EEC_VERTMEASQUAL_ESTIMATED	Estimated.	IR	[FACC, Annex B, VEM:2]	[SOED, "estimate"]
2	MEASURED	EEC_VERTMEASQUAL_MEASURED	Measured.	IR	[FACC, Annex B, VEM:1]	[SOED, "measured"]

EDCS Group Labels: LOCATION, SURVEY

Reference Type: IR

Reference: [FACC, Annex B: VEM]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VERTICAL_PASSAGE_ENCLOSED

EDCS Attribute Code: 1528

Definition:
An indication that a vertical passage (for example: a <RAMP>, a<STAIR>, and/or an <ESCALATOR>) in a <STRUCTURE> is fully enclosed by <WALL>s on both sides.

EDCS Attribute Value Data Type: BOOLEAN

EDCS Group Labels: SUPPORT_STRUCTURE, TRNSP

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VESSEL_DENSITY

EDCS Attribute Code: 1529

Definition:
The areal density of <WATER_SURFACE_VESSEL>s in a <REGION> of a <WATERBODY_SURFACE>.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: AREAL_ENTITY_DENSITY

EDCS Group Labels: HYDROGRAPHIC_TRNSP, RATE_OR_RATIO, TRNSP, VEHICLE

Reference Type: IR

Reference: [OAML, Historical Temporal Shipping Database]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VESSEL_DENSITY_ACOUSTIC_LEVEL_CATEGORY

EDCS Attribute Code: 1530

Definition:
The category of <<VESSEL_DENSITY>>, determined according to induced ambient acoustic noise levels in a <WATERBODY>.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	REMOTE	EEC_VESDENSACLEV_REMOTE	Acoustically distant shipping; remote.	IR	[PUWS]
2	LIGHT	EEC_VESDENSACLEV_LIGHT	Acoustically far from shipping lanes; light.	IR	[PUWS]
3	MODERATE	EEC_VESDENSACLEV_MODERATE	Acoustically intermediate between <<<LIGHT>>> and <<<HEAVY>>>; moderate.	IR	[PUWS]
4	HEAVY	EEC_VESDENSACLEV_HEAVY	Acoustically near to shipping lanes; heavy.	IR	[PUWS]

EDCS Group Labels: ACOUSTIC_PHENOMENON, HYDROGRAPHIC_TRNSP, TRNSP, VEHICLE

Reference Type: n/a

Reference: none

Supplemental References: [PUWS], [WENZ]

EDCS Attribute Symbolic Constant: EAC_VESSEL_FUNCTION

EDCS Attribute Code: 1531

Definition:
The operating function of a <VESSEL>.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	AIR_SUPPORT	EEC_VESFN_AIR_SUPPORT	Engages in operations in support of <AIRCRAFT>; air support.	n/a
2	AMMUNITION_SUPPLY	EEC_VESFN_AMMUNITION_SUPPLY	Delivers <MUNITION>s to warships; ammunition supply.	n/a
3	BATTLESHIP	EEC_VESFN_BATTLESHIP	Serves as a <BATTLESHIP>.	n/a
4	COMBAT	EEC_VESFN_COMBAT	Engages in combat operations.	n/a
5	COMBAT_STORES	EEC_VESFN_COMBAT_STORES	Serves as a <COMBAT_STORES_VESSEL>.	n/a
6	COMBAT_SUPPORT	EEC_VESFN_COMBAT_SUPPORT	Serves as a <COMBAT_SUPPORT_VESSEL>.	n/a
7	COMMAND	EEC_VESFN_COMMAND	Provides communications and accommodations for fleet commanders and staff; command.	n/a
8	COMMERCIAL	EEC_VESFN_COMMERCIAL	Engages in commercial operations. EXAMPLES Passenger, bulker, self unloader, cargo, tanker, tug, towboat, barge, dredge, icebreaker, oceanographic research, pollution abatement, offshore oil and gas drilling rig, floating drydock, fishing.	n/a
9	CRUISER	EEC_VESFN_CRUISER	Serves as a <CRUISER>.	n/a
10	DESTROYER	EEC_VESFN_DESTROYER	Serves as a <DESTROYER>.	n/a
11	FRIGATE	EEC_VESFN_FRIGATE	Serves as a <FRIGATE>.	n/a
12	GUIDED_MISSILE_CRUISER	EEC_VESFN_GUIDED_MISSILE_CRUISER	Serves as a <GUIDED_MISSILE_CRUISER>.	n/a
13	GUIDED_MISSILE_DESTROYER	EEC_VESFN_GUIDED_MISSILE_DESTROYER	Serves as a <GUIDED_MISSILE_DESTROYER>.	n/a
14	GUIDED_MISSILE_FRIGATE	EEC_VESFN_GUIDED_MISSILE_FRIGATE	Serves as a <GUIDED_MISSILE_FRIGATE>.	n/a
15	GUNNERY	EEC_VESFN_GUNNERY	Uses <MUNITION>s based on the theory of projectiles; gunnery.	n/a
16	ICEBREAKER	EEC_VESFN_ICEBREAKER	Fitted with a powerful bow that is specially designed to drive a navigable path through sea <ICE>; icebreaker.	n/a
17	MERCHANT_MARINE	EEC_VESFN_MERCHANT_MARINE	Serves as a <MERCHANT_MARINE_VESSEL>.	n/a
18	PATROL	EEC_VESFN_PATROL	<PATROL_CRAFT>.	n/a
19	PLEASURE	EEC_VESFN_PLEASURE	Provides amusement, recreation or pleasure.	n/a
20	SALVAGE	EEC_VESFN_SALVAGE	Fitted for use in salvage operations of <VESSEL>s; commonly tugboats fitted with special pumps, lifting gear, and diving gear.	n/a
21	SURVEILLANCE	EEC_VESFN_SURVEILLANCE	Observes <EQUIPMENT>, <PERSONNEL> or a <REGION>; surveillance operations.	n/a
22	SURVIVAL	EEC_VESFN_SURVIVAL	Provides survival capability on large <WATERBODY>s.	n/a
23	TENDER	EEC_VESFN_TENDER	Serves as a <TENDER>.	n/a

EDCS Group Labels: HYDROGRAPHIC_TRNSP, TRNSP, VEHICLE

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VESSEL_LOAD_RESTRICTIONS

EDCS Attribute Code: 1532

Definition:
The description of any load restrictions that apply to <VESSEL>s using a <MARINE_ROUTE> or marine <FACILITY>.

EDCS Attribute Value Data Type: STRING

EDCS Group Labels: HYDROGRAPHIC_TRNSP, TRNSP, USAGE_REGION

Reference Type: IR

Reference: [FACC, Annex B: SLC]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VESSEL_TYPE

EDCS Attribute Code: 1533

Definition:
The type of a <VESSEL>.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	AUXILIARY	EEC_VESTY_AUXILIARY	Takes part in military operations but is not a <COMBATANT_VESSEL>; auxiliary. EXAMPLES Transport <VESSEL>, hospital <VESSEL>.	IR	[APDS, "auxillary vessel", 1]
2	BARGE	EEC_VESTY_BARGE	A flat-bottomed, towed, unpowered cargo <VESSEL>; barge.	IR	[APDS, "barge", 1]
3	CIVILIAN	EEC_VESTY_CIVILIAN	Designed for civil functions, especially not military or police operations; civilian.	n/a
4	HYDROFOIL	EEC_VESTY_HYDROFOIL	<HYDROFOIL_VESSEL>.	n/a
5	LIFE_RAFT	EEC_VESTY_LIFE_RAFT	An inflatable raft carried aboard a <VESSEL> for escape in case the crew and passengers are forced to abandon the <VESSEL>; life raft.	IR	[APDS, "life raft"]
6	LOGISTIC	EEC_VESTY_LOGISTIC	Designed to <CARGO> from strategic sealift <VESSEL>s to <SHORE> during operations; logistic.	IR	[MSSAW]
7	MISSILE	EEC_VESTY_MISSILE	Armed with <MISSILE>s.	n/a
8	PATROL_CRAFT	EEC_VESTY_PATROL_CRAFT	<PATROL_CRAFT>.	n/a
9	TANKER	EEC_VESTY_TANKER	Designed to carry a liquid <CARGO> (for example: <PETROLEUM>); tanker.	IR	[APDS, "tanker"]
10	TUGBOAT	EEC_VESTY_TUGBOAT	Small and equipped with a powerful motor that is out of proportion to its size; used to tow or push other (usually larger) <VESSEL>s; tugboat.	IR	[APDS, "tugboat"]
11	UTILITY	EEC_VESTY_UTILITY	Designed for utility support operations.	n/a

EDCS Group Labels: HYDROGRAPHIC_TRNSP, TRNSP, VEHICLE

Reference Type: IR

Reference: [OAML, Historical Temporal Shipping Database]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VIEW_OPENING_PRESENT

EDCS Attribute Code: 1534

Definition:
An indication that an <OBJECT> contains a view <APERTURE> (for example: a peephole or small <WINDOW> in a <DOOR>).

EDCS Attribute Value Data Type: BOOLEAN

EDCS Group Labels: ABSTRACT_OBJECT

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VIRTUAL_AIR_TEMPERATURE

EDCS Attribute Code: 1535

Definition:
In a <SYSTEM> of moist <AIR>, the <<AIR_TEMPERATURE>> of dry <AIR> having the same <<AIR_DENSITY>> and <<ATM_PRESSURE>> as the moist <AIR>; the virtual air temperature.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: THERMO_TEMPERATURE

EDCS Group Labels: ATMOSPHERE, TEMPERATURE

Reference Type: PR

Reference: [WMO182, "virtual air temperature"]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VISIBILITY_DISTANCE

EDCS Attribute Code: 1536

Definition:
The greatest distance in a given <DIRECTION> at which it is just possible to see and identify with the unaided eye either: (1) in the daytime, a prominent dark <OBJECT> against the sky at the horizon or (2) at night, a known, preferably unfocused, moderately intense <LIGHT>; visibility distance.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: DIMENSION, LIGHTING_AND_VISIBILITY

Reference Type: IR

Reference: [GMET]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VISIBILITY_DISTANCE_QUALITY

EDCS Attribute Code: 1537

Definition:
The quality of a <<VISIBILITY_DISTANCE>> observation.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	ERRONEOUS	EEC_VISDISTQUAL_ERRONEOUS	The original observation was in error.	IR	[NCDCM]
2	GOOD	EEC_VISDISTQUAL_GOOD	The quality of the observation was acceptable.	IR	[NCDCM]
3	NO_CHECK	EEC_VISDISTQUAL_NO_CHECK	No check was performed.	IR	[NCDCM]
4	SUSPECT	EEC_VISDISTQUAL_SUSPECT	The original observation may be in error.	IR	[NCDCM]

EDCS Group Labels: LIGHTING_AND_VISIBILITY

Reference Type: IR

Reference: [QCMO]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VISIBILITY_DISTANCE_VARIABLE

EDCS Attribute Code: 1538

Definition:
An indication that a reported <<VISIBILITY_DISTANCE>> observation is variable.

EDCS Attribute Value Data Type: BOOLEAN

EDCS Group Labels: LIGHTING_AND_VISIBILITY

Reference Type: IR

Reference: [JMCDM, "VISIBILITY-OBSERVATION variability code"]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VISUAL_OPACITY

EDCS Attribute Code: 1539

Definition:
A number between 0 and 1 inclusive representing the linearly-scaled fractional opacity (or alpha) of an <OBJECT> in the visual spectrum. The value is determined by how much light fails to penetrate through the <OBJECT>. Zero means that no light is blocked (all light penetrates) and one means that all light is blocked.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: PURE_NUMBER

EDCS Group Labels: ABSTRACT_OBJECT, LIGHTING_AND_VISIBILITY, RATE_OR_RATIO

Reference Type: IR

Reference: [CGPP]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VISUAL_REFLECTOR_PRESENT

EDCS Attribute Code: 1540

Definition:
An indication that a visual reflector is present on an <AID_TO_NAVIGATION>.

EDCS Attribute Value Data Type: BOOLEAN

EDCS Group Labels: DEVICE_AND_EQUIPMENT, TRNSP

Reference Type: IR

Reference: [FACC, Annex B: VRF]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VISUAL_WAVE_HEIGHT

EDCS Attribute Code: 1541

Definition:
The mean apparent <<HEIGHT>> of <WATER_WAVE>s that is determined visually and measured from trough to crest; the visual wave height.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: LENGTH

EDCS Group Labels: DIMENSION, WATERBODY_SURFACE

Reference Type: IR

Reference: [AGM1]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VOLCANIC_FORMATION_TYPE

EDCS Attribute Code: 1542

Definition:
The type of morphology of the <TERRAIN> created by volcanic activity; the volcanic formation type.

EDCS Attribute Value Data Type: ENUMERATION

Code	Label	Symbolic constant	Definition	Reference type	Reference	Supplemental references
1	CALDERA	EEC_VOLCFORMTY_CALDERA	Caldera.	IR	[FACC, Annex B, VGT:4]	[SOED, "caldera"]
2	CINDER_CONE	EEC_VOLCFORMTY_CINDER_CONE	Cinder-cone.	IR	[FACC, Annex B, VGT:2]	[SOED, "cinder-cone"]
3	COMPOSITE	EEC_VOLCFORMTY_COMPOSITE	Large, conical, and composed of alternating layers of lava and pyroclastic<MATERIAL>; composite.	IR	[FACC, Annex B, VGT:5]
4	CONICAL	EEC_VOLCFORMTY_CONICAL	Conical.	IR	[FACC, Annex B, VGT:1]
5	SHIELD	EEC_VOLCFORMTY_SHIELD	Broad, gently sloping, and resembling a flattened dome or shield, generally formed by overlapping and interfingering basaltic lava flows; shield.	IR	[FACC, Annex B, VGT:3]

EDCS Group Labels: PHYSIOGRAPHY

Reference Type: IR

Reference: [FACC, Annex B: VGT]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VOLTAGE_LEVEL

EDCS Attribute Code: 1543

Definition:
The nominal voltage level of supplied electrical power to a transportation <SYSTEM>.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: ELECTRIC_POTENTIAL

EDCS Group Labels: EM_PHENOMENON, INFRASTRUCTURE, TRNSP

Reference Type: IR

Reference: [FACC, Annex B: ETN]

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VOLUME

EDCS Attribute Code: 1544

Definition:
The internal volume of an <OBJECT>.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: VOLUME

EDCS Group Labels: ABSTRACT_OBJECT

Reference Type: n/a

Reference: none

Supplemental References: none

EDCS Attribute Symbolic Constant: EAC_VOLUME_BACKSCATTER_GRADIENT

EDCS Attribute Code: 1545

Definition:
The negative of the depth gradient of the ratio of the flux returned (reflected directly back in the <DIRECTION> of incidence) to the incident flux (generally in decibels per metre of depth) for an <OBJECT>; the volume backscatter gradient.

EDCS Attribute Value Data Type: REAL

EDCS Unit Equivalence Class Label: POWER_LEVEL_DIFF_LEN_GRADIENT

EDCS Group Labels: ABSTRACT_OBJECT, RATE_OR_RATIO

Reference Type: IR

Reference: [GMET]

Supplemental References: none