Table 6.40 — EEs for EAs with labels beginning with E
Attribute label Enumerant label Concept definition Figure(s) Code
ECOSYSTEM_TYPE_OLSON   The type of an ecosystem in the Global Ecosystem Framework based on a combination of land cover, floristic properties, climate, and physiognomy; ecosystem type Olson.    
  BAMBOO_TREED_TRACT Comprised of woody tall <GRASS> <SHRUB>/woods, having evergreen <VEGETATION> and a moist-wet, hot-mild climate; bamboo treed tract. Dominant taxa include Bambusa (Asia) and Oxylenanthera (Africa).   1
  BARE_COAST_DUNE Comprised of moving/reversible <SAND_DUNE>s, having sparse <VEGETATION> and a hot-cold, dry climate; bare coast dune. Dominant taxa include Cakile, Corispermum, Lathyrus, and Croton. This Olson ecosystem type occurs where the <WIND> limits <VEGETATION> to a small fraction of the land <<AREA>> (for example: less than ten percent over an <<AREA>> of more than one square kilometre).   2
  BARE_DESERT Comprised of ephemeral/sparse xerophytes, having low cover <VEGETATION> and an extreme drought hot-cold climate; bare desert. Dominant taxa include Salsola, Ambrosia, Cordylanthus, Lactuca, and Capparis.   3
  BARREN_TUNDRA Comprised of dwarf herb, <SHRUB>, moss, lichen, having variable <VEGETATION> and a cold permafrost climate; barren tundra. Dominant taxa include Oxyria, Alopecuris, Carex, and Eriophorum.   4
  BEACH_FOREDUNE_SHORELINE Comprised of low linear <SAND_DUNE>s, having pioneer <VEGETATION> and a wind-swept, storm-swept climate; beach foredune shoreline. Dominant taxa include Uniola, Elymus (Leymus), Ammophila, Andropogon, and Prunus. This Olson ecosystem type is a subtype of <<<COAST_HINTERLAND>>> that averages 0 to 3 metres above sea level in a <REGION> with an <<AREA>> of one square kilometre. Beach foredune shoreline can be more specifically separated into <<<SPARSE_DUNE_BUILDER>>>, <<<BARE_COAST_DUNE>>>, <<<RESIDUAL_DUNES_BEACH>>>, <<<COMPOUND_COAST>>>, and/or <<<ROCK_CLIFF_SLOPE>>>.   5
  BROADLEAF_CROP_LAND Comprised of leafy rowcrops with/without <GRASS> and comprised of woody <VEGETATION>, having annual tops <VEGETATION> and a hot-cold climate; broadleaf crop land. Dominant taxa include Arachis (peanut), Solanum, Vitis (grape), and Humulus (hop).   6
  COAST_HINTERLAND Comprised of <BEACH>/<SAND_DUNE>/<ROCK>/slope, having variable <VEGETATION> and a marine climate; coast hinterland. Dominant taxa include Cakile and Lathyrus. This Olson ecosystem type has subtype <<<BEACH_FOREDUNE_SHORELINE>>>.   11
  COAST_WETLAND_NE Comprised of mixed wet/dry <COAST> such that the principal land part, whether mainland or <ISLAND>, is in the north-east quadrant of the <REGION> being characterized, having variable <VEGETATION> and a hot-cold, windy climate; coast wetland-north-east. Dominant taxa include Spartina, Elymus, Ammophila, and Uniola.   7
  COAST_WETLAND_NW Comprised of mixed wet/dry <COAST> such that the principal land part, whether mainland or <ISLAND>, is in the north-west quadrant of the <REGION> being characterized, having variable <VEGETATION> and a hot-cold, windy climate; coast wetland-north-west. Dominant taxa include Spartina, Elymus, Ammophila, and Uniola.   8
  COAST_WETLAND_SE Comprised of mixed wet/dry <COAST> such that the principal land part, whether mainland or <ISLAND>, is in the south-east quadrant of the <REGION> being characterized, having variable <VEGETATION> and a hot-cold, windy climate; coast wetland-south-east. Dominant taxa include Spartina, Elymus, Ammophila, and Uniola.   9
  COAST_WETLAND_SW Comprised of mixed wet/dry <COAST> such that the principal land part, whether mainland or <ISLAND>, is in the south-west quadrant of the <REGION> being characterized, having variable <VEGETATION> and a hot-cold, windy climate; coast wetland-south-west. Dominant taxa include Spartina, Elymus, Ammophila, and Uniola.   10
  COLD_GRASSLAND Comprised of browsed meadow/steppe, having annual top <VEGETATION> and a cold, windy, dry-wet climate; cold grassland. Dominant taxa include Calamogrostis, Elymus, Eriophorum, other herbs, and Azorella.   12
  COLD_IRRIGATED_CROP_LAND Comprised of tilled/hay pastured fields, having some irrigated crop <VEGETATION> and a snowy, long winter climate; cold irrigated crop land. Dominant taxa include Solanum tuberosa (potato), and Brassica (cabbage).   13
  COMPOUND_COAST Comprised of a mixture of <<<HEATH_SCRUB>>>, <<<MANGROVE_FOREST_SCRUB>>>, <<<WATER_ISLAND_FRINGE>>>, <<<LAND_WATER_SHORE>>>, <<<LAND_WATER_RIVER>>> <<<CROP_LAND_WATER_MIXED>>>, <<<S_HMISPH_CONIFER>>>, <<<COAST_HINTERLAND>>>, and/or the other subtypes of <<<COAST_HINTERLAND>>>, having varied cover <VEGETATION> and a varied climate; compound coast.   14
  CONIFER_BOREAL_FOREST Comprised of medium-low dense-open taiga, having narrow conifer <VEGETATION> and a cold climate; conifer boreal forest. Dominant taxa include Abies balsamea, Picea, and Pinus banksiana.   15
  CONIFER_COOL_RAINFOREST Comprised of medium/tall <FOREST>, having evergreen conifer <VEGETATION> and a rainy/snowy climate; conifer cool rainforest. Dominant taxa include Picea sitkensis/rubra, Tsuga, Alnus/Betula, and Gaultheria.   26
  CONIFER_EVERGREEN_FOREST Comprised of needle-leaf <FOREST>, having evergreen conifer <VEGETATION> and a warm-cold climate. Dominant taxa include Tsuga, Pinus, Picea, Abies, and Chamaecyparis.   16
  CONIFEROUS_FOREST Comprised of very tall-to-low <FOREST>/woodland, having evergreen <TREE>/<SHRUB> <VEGETATION> and a hot-mild climate; coniferous forest. Dominant taxa include Pinus (taeda, palustris, elliotii, and caribaea) and Sequoia with <<<MIXED_FOREST>>>.   17
  COOL_CONIFER_FOREST Comprised of low-to-tall <FOREST> and comprised of woodland, having evergreen conifer <VEGETATION> and a snowy climate; cool conifer forest. Dominant taxa include Pinus, Pseudotsuga, Picea, Abies, and Libocedrus.   19
  COOL_CROP_LAND_TOWN Comprised of <FARM>s with/without pasture and comprised of settlements, having summer crop <VEGETATION> and a snowy winter climate; cool crop land/town. Dominant taxa include spring grain, forage with or without <<<CORN_BEAN_CROP_LAND>>>, Poa, Agrostis, and Agropyron with <<<URBAN_SUBURBAN>>>.   20
  COOL_DECID_FOREST Comprised of medium-tall <FOREST>, having cold-deciduous <VEGETATION> and a persistent snowy climate; cool deciduous forest. Dominant taxa include Acer, Quercus rubra, Quercus alba, and Fraxinus with or without Fagus.   18
  COOL_FIELD_TREED_TRACT Comprised of <CROP_LAND>/herb with <TREED_TRACT>/<SHRUB> covering 20-40 percent of the <<AREA>> of the <REGION> being characterized, having cold-deciduous/evergreen <VEGETATION> and a snowy climate; cool field/treed tract. Crops cover no more than 60 percent of the <<AREA>> of the <REGION>. Dominant taxa include Poa, Bromus, Quercus, Prunus, and Crataegus.   21
  COOL_FOREST_FIELD Comprised of <FOREST> with <CROP_LAND>/<SHRUB>/<GRASSLAND>, having mixed/cold-deciduous <VEGETATION> and a snowy climate; cool forest field. Dominant taxa include Quercus, Betula, Acer, and Amelanchier.   22
  COOL_GRASS_HERB_SHRUB Comprised of mid-tall <GRASS>, herb, <SHRUB>, having annual foliage <VEGETATION> and a snowy, windy climate; cool grass herb/shrub. Dominant taxa include Bromus, Poa (C3 <GRASS>), Trifolium, Andropogon, and Panicum.   23
  COOL_IRRIGATED_CROP_LAND Comprised of tilled/hay pastured fields, having mostly irrigated crop <VEGETATION> and a snowy most winters climate; cool irrigated crop land. Dominant taxa include Beta vulgaris (sugar beets), grains, and forage.   24
  COOL_MIXED_FOREST Comprised of medium/tall <FOREST>, having evergreen/cold-deciduous <VEGETATION> and a snowy climate; cool mixed forest. Dominant taxa include Betula, Acer with/without Fagus, Pinus, Picea, Abies, and Tsuga.   25
  COOL_S_HMISPH_MIXED_FOREST Comprised of tall-to-low <FOREST>, having evergreen broadleaf <VEGETATION> and a cool-cold climate; cool southern hemisphere mixed forest. Dominant taxa include Nothofagus, Drimes winteri, Pilgerodendron, and Podocarpus.   27
  CORN_BEAN_CROP_LAND Comprised of rowcrops: maize, soy, cover, having alternation <VEGETATION> with/without irrigation; corn/bean crop land. Dominant taxa include Zea maize, Gycine max (soy), Festuca, and Bromus.   28
  CROP_LAND_GRASSLAND_SCRUB_LAND Comprised of <FARM>, <GRASSLAND>, and/or <SCRUB_LAND>, having herbage <VEGETATION> and a cold-hot, wet-dry climate; crop land/grassland/scrub land. Dominant taxa are mosaics of other Olson ecosystem types.   31
  CROP_LAND_TOWN Comprised of <FARM>s with/without pasture and <TOWN>s, having crop mix <VEGETATION> and a mild-hot, wet-dry climate; crop land/town. Dominant taxa include winter grain, Gossypium, Sorghum, and Panicum with/without <<<CORN_BEAN_CROP_LAND>>>.   30
  CROP_LAND_WATER_MIXED Comprised of <CROP_LAND> with coast/<RIVER>/pond/<WETLAND>, having variable cover <VEGETATION> and a variable climate; crop land/water mixed. Dominant taxa include Calamogrostis, Phragmites with crop, and pasture.   29
  DECID_BROADLEAF_FOREST Comprised of medium/tall <FOREST>, having cold-deciduous <VEGETATION> and a mild-hot climate; deciduous broadleaf forest. Dominant taxa include Quercus, Carya, Liriodendron, Magnolia, Acer, and Juglans with <<<DECID_BROADLEAF_TREED_TRACT>>>.   32
  DECID_BROADLEAF_TREED_TRACT Comprised of broadleaf <FOREST>/woodland with <SHRUB>, having deciduous <VEGETATION> and a hot-cold climate; deciduous broadleaf treed tract. Dominant taxa include Quercus, Carya, Fraxinus, Ulmus, Celtis, and Populus.   33
  DECID_CONIFER_FOREST Comprised of needle-leaf <FOREST> with woodland, having deciduous <VEGETATION> and a generally cold climate; deciduous conifer forest. Dominant taxa include Larix (Taxodium is in <<<TREED_WETLAND>>>).   34
  DECIDUOUS_TREE_CROP Comprised of <FARM>s on which deciduous <TREE>s are cultivated; deciduous tree crop.   36
  DRY_EVERGREEN_BROADLEAF-
_TREED_TRACT
Comprised of woodland and low/dry <FOREST>, having broadleaf evergreen <VEGETATION> and a dry climate; dry evergreen broadleaf treed tract. Dominant taxa include Tecoma, Schinopsis, Aspidosperma, and Acacia (quebracho).   37
  DRY_TREED_SCRUB_LAND Comprised of <SHRUB> with/without low/open woodland, having evergreen <VEGETATION> and a dry/cool-warm climate; dry treed scrub land. Dominant taxa include Juniperus and Pinus (cedulus, monosperma, and flexilis).   39
  DRY_TROPICAL_TREED_TRACT Comprised of woodland/low <FOREST> and C4 <GRASS>, having drought-deciduous <VEGETATION> and a hot, dry climate; dry tropical treed tract. Dominant taxa include Prosopis, Cercidium, Aspidospermum, and Cedrela.   38
  EVERGREEN_BROADLEAF_TREED-
_TRACT
Comprised of broadleaf <FOREST>/woodland, having evergreen <VEGETATION> and a mild-warm climate; evergreen broadleaf treed tract. Dominant taxa include Quercus virginiana, Persea, Magnolia, and Ilex.   40
  EVERGREEN_FOREST_FIELD Comprised of crop/herb, <SHRUB>, and/or <FOREST>, having evergreen conifer/broadleaf <VEGETATION>; evergreen forest/field. Dominant taxa include Pinus, Pseudotsuga, and Sabal palmetto.   41
  EVERGREEN_TREE_CROP Comprised of <FARM>s on which evergreen <TREE>s are cultivated; evergreen tree crop.   42
  FIELD_TREED_SAVANNA Comprised of <CROP_LAND>/herb with <FOREST>/<SHRUB> covering 20-40 percent of the <<AREA>> of the <REGION> being characterized, having deciduous/evergreen <VEGETATION> and a hot-cool climate; field/treed savanna. Dominant taxa include Festuca, Diospyros, Sassafras, and Cornus.   43
  FOREST_FIELD Comprised of <FOREST> with <CROP_LAND>/<SHRUB>/<GRASSLAND>, having mixed/deciduous <VEGETATION> and a mild-hot climate; forest field. Dominant taxa include Quercus, Platanus, and Liquidambar.   44
  GLACIER_ICE Comprised of Antarctic/mountain/sea <ICE>, having algae/lichen <VEGETATION> and a very cold climate; glacier ice. Dominant taxa include cryptogams (lichen and algae).   45
  GLACIER_ROCK Comprised of Arctic/mountain <GLACIER> and/or <SNOW_GROUND_COVER>, having microbe/herb <VEGETATION> and a very cold climate; glacier rock.   46
  GRASS_CROP_LAND Comprised of cereal, hay greater than 60 percent cover with/without settlements, having annual tops <VEGETATION> and a cool-hot, wet-dry climate; grass crop land. Dominant taxa include Triticum (wheat), Avena (oats), Hordeum (barley), and Secale (rye).   47
  HEATH_SCRUB Comprised of dwarf-tall scrub, acid <SOIL>, having evergreen-mixed <VEGETATION> and a mild-cold climate; heath scrub. Dominant taxa include Empetrum, Vaccinum, Calluna, Kalmia, and Rhododendron.   48
  HOT_MILD_GRASS_HERB_SHRUB Comprised of prairie/pampas/rangeland, having mixed foliage (C4) <VEGETATION> and a mild-hot climate; hot-mild grass herb shrub. Dominant taxa include Bouteloua, Aristida, Setaria (C4 <GRASS>) with/without <SHRUB>, and <TREE>s.   50
  HOT_MILD_IRRIGATED_CROP_LAND Comprised of tilled/pastured fields, having extensively irrigated crop <VEGETATION> and a climate with rare or no <SNOW_PRECIPITATION>; hot-mild irrigated crop land. Dominant taxa include Gossypium (cotton) and Saccharum officinarium (sugar cane).   49
  IRRIGATED_CROP_GRASSLAND Comprised of farm rangeland with irrigated <CROP_LAND>, having herbage <VEGETATION> and a dry, hot-cold climate; irrigated crop grassland. Dominant taxa include Medicago sativa (alfalfa), Sorghum, Triticum, and Bromus.   52
  LAND_WATER_RIVER Comprised of alluvial mix, <RIVER>, and <PLANT>s, having varied foliage <VEGETATION> and a varied climate; land/water river. Dominant taxa include Ambrosia, Salix, Populus, Acer, Ulmus, and Platanus.   53
  LAND_WATER_SHORE Comprised of lake/<WETLAND> with marginal <PLANT>s, having varied foliage <VEGETATION> and a varied climate; land/water shore. Dominant taxa include plankton, Scirpus, and Typha.   54
  LOW_SPARSE_GRASSLAND Comprised of steppe, herb with/without sparse woody <VEGETATION>, having shortgrass/<HUMMOCK> <VEGETATION> and a dry/cold climate; low/sparse grassland. Dominant taxa include Bouteloua, Buchlöe, Stipa, Sporobolus, and Opuntia.   55
  MANGROVE_FOREST_SCRUB Comprised of <FOREST>/scrub and comprised of tidal flat, having evergreen broadleaf <VEGETATION> and a hot climate; mangrove forest scrub. Dominant taxa include Rhizophora, Avicenna, and Hibiscus.   56
  MARSHY_WETLAND Comprised of graminoid/herb with/without <SHRUB>/<TREE>, having mixed <VEGETATION> and a marine or cold-hot climate; marshy wetland. Dominant taxa include Spartina, Juncus, Scirpus, Salicornia, and Hibiscus with <<<TREED_WETLAND>>>.   57
  MEDITERRANEAN_SCRUB_LAND Comprised of scrub with/without wood/<GRASSLAND>, having evergreen <VEGETATION> and a winter rain/dry summer climate; Mediterranean scrub land. Dominant taxa include Quercus, Cercocarpus, Adenostema, Ceanothus, and Baccharis.   58
  MIRE_BOG_FEN Comprised of sphagnum/graminoid with dwarfshrub, having evergreen/cold-deciduous <VEGETATION> and a cold climate; mire bog/fen. Dominant taxa include Sphagnum, Carex, Ledum, Eriophorum, Rhus, and Picea with <<<MIXED_DECID_BOREAL>>>.   59
  MIXED_DECID_BOREAL Comprised of medium-low <FOREST>/woodland (Larix greater than 20 percent), having deciduous-mixed taiga <VEGETATION> and a cold climate; mixed deciduous boreal. Dominant taxa include Larix, Abies, and Pinus siberica.   35
  MIXED_FOREST Comprised of low-medium <FOREST>/woodland, having conifer/broadleaf <VEGETATION> and a mild-hot climate; mixed forest. Dominant taxa include Quercus, Carya, Liquidambar, Pinus, and Juniperus with <<<DECID_BROADLEAF_FOREST>>>.   60
  MIXED_FOREST_FIELD Comprised of low-to-tall <FOREST> with/without <CROP_LAND>/<GRASSLAND>, having cold-deciduous with evergreen <VEGETATION> and a with/without <SNOW_PRECIPITATION> climate; mixed forest/field. Mixed forest/field has deciduous and/or evergreen broadleaf <TREE>s and <SHRUB>s alternating with the conifers. Crops and <GRASS>, if any, might cover up to 40-50 percent of the <<AREA>> of the <REGION> being characterized, but usually much less or none at all. Dominant taxa include Acer, Tilia, Quercus with <<<DECID_BROADLEAF_TREED_TRACT>>>, Pinus, and Tsuga with <<<CONIFER_BOREAL_FOREST>>>.   61
  MOIST_EUCALYPT_FOREST Comprised of medium open Eucalypt <FOREST>, having broadleaf evergreen <VEGETATION> and a mild-hot climate; moist eucalypt forest. Dominant taxa include Eucalyptus and Acacia.   62
  MONTANE_TROPICAL_COMPLEX Comprised of montane medium-low woods/herbs, having evergreen <VEGETATION> and a mild-warm, wet climate; montane tropical complex. Dominant taxa include Eugenia, Brunellia, Clusia, Castilloa, Tipuana, and Myoxylon.   63
  NARROW_CONIFER_MIX Comprised of dense/sparse <TREE>/<SHRUB>/herb, having evergreen/mixed <VEGETATION> and a subpolar/mountain climate; narrow conifer mix. Dominant taxa include Abies, Picea, Pinus, and Juniperus.   64
  POLAR_ALPINE_DESERT Comprised of barren <ROCK> and polar/alpine <DESERT_REGION>, having lichen <VEGETATION> and an extreme cold, dry climate. Dominant taxa include Draba, Dryas, Cassiope, Luzula nivalis, and Poa arctica.   65
  RAIN_GREEN_TROPICAL_FOREST Comprised of medium <FOREST>, closed-open with drought-deciduous <VEGETATION> and a hot, moist climate; rain green tropical forest. Dominant taxa include Shorea robusta, Tectonia grandis, and Xylia dolobriformis.   66
  RESIDUAL_DUNES_BEACH Comprised of residual <SAND_DUNE>s with fields, having varied cover <VEGETATION> and a varied climate; residual dunes beach.   67
  RICE_PADDY_FIELD Comprised of plain or terrace paddies, having 1-3 crops per year <VEGETATION> with irrigation; rice paddy/field. Dominant taxa include Oryza sativa (rice), other C4 and/or C3 metabolic type crops, gardens, with/without <TREE>s.   68
  ROCK_CLIFF_SLOPE Comprised of shore/montane/sparse cover, having varied <VEGETATION> and a varied climate; rock cliff/slope. Dominant taxa include Arctostaphylos, Vaccinium, Juniperus with lichens, and herbs.   69
  S_HMISPH_CONIFER Comprised of tall-medium rainforest, having evergreen conifer <VEGETATION> and a mild-cool climate; southern hemisphere conifer. Dominant taxa include Podocarp and Auraucaria families.   70
  S_HMISPH_MIXED_FOREST Comprised of medium/tall rainforest with/without conifer, having evergreen broadleaf <VEGETATION> and a mild-warm climate; southern hemisphere mixed forest. Dominant taxa include Nothofagus, Fitzroya, Persea, and Crinodendron.   71
  SALT_SODA_PLAYA_BASIN Comprised of saline/soda desert basins, having halophyte dry lake <VEGETATION> and a hot-cold climate; salt-soda playa basin. Dominant taxa include Salicornia, Atriplex, Suedia, Sarcobatus, and Distlichus.   72
  SAND_DESERT Comprised of blowing <SAND_DUNE>s and flats, having patchy oasis seepage <VEGETATION> and a windy climate; sand desert. Dominant taxa include Oryzopsis, Yucca, Artemisia filifolia, and Andropogon.   73
  SAND_GRASS_SHRUB Comprised of sandy steppe herb/<SHRUB>, having mixed <VEGETATION> and a dry, hot-cold, windy climate; sand grass/shrub. Dominant taxa include Calamovilfa, Oryzopsis, Redfieldia, Artemisia, and Bouteloua.   74
  SAVANNA_TREED_TRACT Comprised of <GRASSLAND> under open <TREED_TRACT>/<SHRUB> covering 10-30 percent of the <<AREA>> of the <REGION> being characterized, having broadleaf/conifer <VEGETATION> and a dry-moist climate; savanna treed tract. Dominant taxa include Paspalum, Andropogon, Vellozia, Mauritia, Tecoma, and Bombax.   75
  SEASONAL_TROPICAL_FOREST Comprised of medium <FOREST> with/without plantation, having evergreen <VEGETATION> and a hot, seasonal moist climate; seasonal tropical forest. Dominant taxa include Ceiba, Tabebuia, Manilkara, Buchenavia, Bombax, and Ocotea.   77
  SEMI_DESERT_SAGE Comprised of <SHRUB>-steppe sparse range, having evergreen <VEGETATION> and a cool-cold climate; semi-desert sage. Dominant taxa include Artemisia, Eurotia, Chrysothamnus, and Kochia.   79
  SEMI_DESERT_SHRUB Comprised of sparse <SHRUB>s and xerophytes, having mixed green <VEGETATION> and a hot-cool climate; semi-desert shrub. Dominant taxa include Larrea, Fouquieria, Coleogyne, Acacia, and Prosopis.   80
  SEMI_DESERT_SHRUB_TREE Comprised of sparse <SHRUB> with/without herb/<TREE>, having spring/ephemeral green <VEGETATION> and a dry climate; semi-desert shrub/tree. Dominant taxa include Tamarix, Sarcobatus, Carnegia, Grayia, Ephedra, and Sitanion.   78
  SHRUB_DECIDUOUS Comprised of sparse-dense <SHRUB>, having cold-deciduous/drought-deciduous <VEGETATION> and a moist climate. Dominant taxa include Diplacus, Salvia, Encelia, Quercus, Lepechinia, and Rhus.   81
  SHRUB_EVERGREEN Comprised of sparse <SHRUB> with/without low <TREE>, having evergreen <VEGETATION> and a cold-hot/wet-dry climate. Dominant taxa include Juniperus, Artemisia, Arctostaphylos, and Ilex.   82
  SMALL_LEAF_MIXED_TREED_TRACT Comprised of low-medium taiga-edge/groves, having cold-deciduous with/without conifer <VEGETATION> and a cold climate; small leaf mixed treed tract. Dominant taxa include Betula, Populus, Salix, and Alnus.   83
  SPARSE_DUNE_BUILDER Comprised of varied dunebuilding <PLANT>s, having pioneer <VEGETATION> and blowout <SAND_DUNE>s; sparse dune builder. Dominant taxa include Calamovilfa, Panicum, Andropogon, Populus, and Tilia.   84
  SUCCULENT_THORN_SCRUB Comprised of succulent/thorn <SHRUB>/<TREE>, having deciduous <VEGETATION> and a hot-mild, dry climate; succulent thorn scrub. Dominant taxa include Opuntia, Yucca, Agave, Acacia, Cavanillesia, and Zizyphus.   85
  TALLGRASS_HERB_SHRUB Comprised of tall <GRASS> with/without woody/crops, having annual foliage <VEGETATION> and a hot-cold climate; tallgrass herb/shrub. Dominant taxa include Andropogon, Sorghastrum, Panicum, and Prunus.   86
  TREED_SAVANNA Comprised of C4 <GRASS> with woodland/low <FOREST> covering 30-50 percent of the <<AREA>> of the <REGION> being characterized, having deciduous-evergreen <VEGETATION> and a dry-wet climate; treed savanna. Dominant taxa include Tristachys, Imperata, Ficus, Chlorophora, and Fragaria.   96
  TREED_TUNDRA Comprised of timberline <TREE>/scrub/herb, having evergreen-deciduous <VEGETATION> and a cold climate; treed tundra. Dominant taxa include Abies lasiocarpa, Picea, Pinus monticola, and Pinus longaeva.   94
  TREED_WETLAND Comprised of <TREE>/<SHRUB> over wetland herbs, having evergreen/deciduous <VEGETATION> and a hot-cold climate; treed wetland. Dominant taxa include Salix, Acer, Nyssa, Taxodium, Thuja, and Cephelanthus.   95
  TROPICAL_DEGRADED_FOREST Comprised of medium-to-low opened <FOREST>/woodland, having evergreen broadleaf <VEGETATION> and a hot climate; tropical degraded forest. Dominant taxa include Cecropia, Didymopanax, Curatella, and plantations. Tropical degraded forest results from cutting either <<<SEASONAL_TROPICAL_FOREST>>> or <<<TROPICAL_RAINFOREST>>>, with insufficient time for recovery.   87
  TROPICAL_RAINFOREST Comprised of tall-medium closed, multilayer <FOREST>, having evergreen broadleaf <VEGETATION> and a hot, wet climate; tropical rainforest. Dominant taxa include Swietena, Bertholletia, Hevea, Dacryodes, Sloanea, and Cordia.   88
  UPLAND_TUNDRA Comprised of dwarf-tall herb, <SHRUB>, cushion, having sparse <VEGETATION> and a strong frost, windy climate; upland tundra. Dominant taxa include Kobresia, Poa, and Salix nana.   89
  URBAN_SUBURBAN Comprised of construction and of lawn with/without <PARK>s, having plantings and weeds <VEGETATION> and a cold-hot climate; urban suburban. Dominant taxa include Poa, Festuca, Cynodon, Ulmus, Populus, and Ailanthus.   90
  VOLCANIC_ROCK_ASH Comprised of sparse <PLANT>s on lava/ash, having patchy <VEGETATION> and an equatorial-subarctic climate; volcanic rock/ash. Dominant taxa include Pisonia, Psidium, Saccharum, ferns, lichens, and algae.   91
  WATER_INLAND Comprised of <PLANKTON> with/without emergents, having seasonal blooms <VEGETATION> and a variable climate; water inland. Dominant taxa include <PLANKTON> with/without emergents.   51
  WATER_ISLAND_FRINGE Comprised of submergible and other complex, having successional <VEGETATION> and a hot-cold climate; water island fringe. Dominant taxa include Ipomea, Cocos nucifera, Juniperus, and Acrocaria.   92
  WATER_SEA Comprised of <PLANKTON> with/without kelp and comprised of reefs, having year-round growth <VEGETATION> and a with/without ice climate; water [sea]. Dominant taxa include <PLANKTON> with/without kelp, and reefs.   76
  WET_SCLEROPHYL_FOREST Comprised of tall open Eucalypt <FOREST>, having broadleaf evergreen <VEGETATION> and a mild, wet climate; wet sclerophyl forest. Dominant taxa include Eucalyptus (regnans, obliqua, and diversicolor).   93
EDUCATIONAL_FACILITY_TYPE   The type of an educational <FACILITY>.    
  ACADEMY Houses a school that teaches a particular subject or trains people for a particular job; also a secondary or college-preparatory school, especially a private one; academy [AHD, "academy", 1 and 2].   1
  COLLEGE Houses a self-governing constituent body of a university offering living quarters and instruction but not granting degrees; or a preparatory or high school; or an independent institution of higher learning offering a course of general studies leading to a bachelor's degree; or a part of a university offering a specialized <NON_EMPTY_SET> of courses; or an institution offering instruction usually in a professional, vocational, and/or technical field; college [AHD, "college"].   2
  EDUCATIONAL_CENTRE Houses an establishment for teaching and learning; educational centre.   3
  LYCEUM A hall in which public lectures, concerts, and similar programs are presented; lyceum [AHD, "Lyceum", 1].   4
  SEMINARY <SEMINARY>.   5
  UNIVERSITY Houses an institution for higher learning with teaching and research facilities constituting a graduate school and professional schools that award master's degrees and doctorates and an undergraduate division that awards bachelor's degrees; university [AHD, "university"].   6
ELEV_ELECTRICAL_CABLE_TYPE   The type of suspension of an <ELEVATED_ELECTRICAL_CABLE>.    
  MOUNTAIN_CATENARY Catenary over <MOUNTAIN>s.   1
  NORMAL_SUSPENSION Normal suspension.   2
  OVERWATER_CATENARY Catenary over <WATERBODY>s.   3
ELEVATION_ACCURACY_STATEMENT   A statement of the accuracy of an <<ELEVATION>>.    
  ACCURATE Conforms to a standard or accepted value; accurate.   1
  APPROXIMATE Approaching closely (approximates) but not attaining a specified accuracy or a precision conformable with the quality of the observations.   2
EM_BAND   The scientifically-accepted designation for a range of <<FREQUENCY>>s within the electromagnetic spectrum; electromagnetic band.    
  RF Less than 3 gigahertz; radio frequency. Note that the RF band omits microwave bands, although these can be used for communication.   1
  ELF 3 hertz to 30 hertz; extremely low frequency.   3
  VLF 3 kilohertz to 30 kilohertz; very low frequency.   4
  LF 30 kilohertz to 300 kilohertz; low frequency.   5
  MF 300 kilohertz to 3 megahertz; medium frequency.   6
  HF 3 megahertz to 30 megahertz; high frequency.   7
  VHF 30 megahertz to 300 megahertz; very high frequency.   8
  Q_RADIO 36 megahertz to 46 megahertz, a radio subband within <<<VHF>>>; Q radio.   9
  P_RADIO 225 megahertz to 390 megahertz, a special radio subband that overlaps the boundary of <<<VHF>>> and <<<UHF>>>; P radio.   10
  UHF 300 megahertz to 3 gigahertz; ultra-high frequency.   11
  L 1 gigahertz to 2 gigahertz, a microwave subband within <<<UHF>>>; L.   12
  MICROWAVE 3 gigahertz to 300 gigahertz; microwave.   13
  SHF 3 gigahertz to 30 gigahertz; super high frequency.   14
  S 2 gigahertz to 4 gigahertz, a special microwave band that overlaps the boundary of <<<UHF>>> and <<<SHF>>>; S.   15
  C 4 to 8 gigahertz, a microwave subband within <<<SHF>>>; C.   16
  X 8 gigahertz to 12 gigahertz, a microwave subband within <<<SHF>>>; X.   17
  KU 12 gigahertz to 18 gigahertz, a microwave subband within <<<SHF>>>; KU.   18
  K 18 gigahertz to 27 gigahertz, a microwave subband within <<<SHF>>>; K.   19
  KA 27 gigahertz to 40 gigahertz, a special band that overlaps the boundary of <<<SHF>>> and <<<EHF>>>; KA.   20
  EHF 30 gigahertz to 300 gigahertz; extremely high frequency.   21
  V 50 gigahertz to 75 gigahertz, a microwave subband within <<<EHF>>>; V.   22
  W 75 gigahertz to 110 gigahertz, a microwave subband within <<<EHF>>>; W.   23
  INFRARED 300 gigahertz to 385 terahertz; infrared.   24
  FAR_INFRARED 300 gigahertz to 6 terahertz; far infrared.   27
  INTERMEDIATE_INFRARED 6 terahertz to 100 terahertz; intermediate infrared. This is also known as mid infrared (MIR).   28
  NEAR_INFRARED 100 terahertz to 385 terahertz; near infrared.   29
  VISIBLE 385 terahertz to 790 terahertz; visible.   30
  RED Approximately 385 terahertz to approximately 482 terahertz; red.   31
  ORANGE Approximately 482 terahertz to approximately 503 terahertz; orange.   32
  YELLOW Approximately 503 terahertz to approximately 520 terahertz; yellow.   33
  GREEN Approximately 520 terahertz to approximately 610 terahertz; green.   34
  BLUE Approximately 610 terahertz to approximately 659 terahertz; blue.   35
  VIOLET Approximately 659 terahertz to approximately 790 terahertz; violet.   36
  UV Approximately 769 terahertz to 30 petahertz; ultraviolet.   37
  NEAR_UV Approximately 790 terahertz to approximately 950 terahertz; near ultraviolet.   38
  FARULTRAVIOLET 3 petahertz to 300 petahertz; farultraviolet.   39
  UV_A Approximately 790 terahertz to 950 terahertz; ultraviolet A. This band is also known as UVA.   40
  UV_B Approximately 950 terahertz to 1,07 petahertz; ultraviolet B. This band is also known as UVB.   41
  UV_C Approximately 1,07 terahertz to 3 petahertz; ultraviolet C. This band is also known as UVC.   42
  X_RAY 30 petahertz to 30 exahertz; X-ray.   43
  GAMMA 30 exahertz to 300 exahertz; gamma.   44
  D 110 gigahertz to 170 gigahertz; D.   45
  DEEP_UV Approximately 1,07 petahertz to approximately 1,580 petahertz; deep ultraviolet.   46
  F 90 gigahertz to 140 gigahertz; F.   47
  HARD_X_RAY 3 exahertz to 30 exahertz; hard X-ray.   48
  MID_UV Approximately 950 terahertz to approximately 1,07 petahertz; mid ultraviolet.   49
  SLF 30 hertz to 300 hertz; super low frequency.   50
  SOFT_X_RAY 30 petahertz to 3 exahertz; soft X-ray.   51
  U 40 gigahertz to 60 gigahertz; U. This band overlaps the Q and <<<V>>> microwave subbands.   52
  VACUUM_UV Approximately 1,58 petahertz to approximately 3 petahertz; vacuum ultraviolet.   53
  VF_ULF 300 hertz to 3 kilohertz; voice frequency (VF) / ultra low frequency (ULF).   54
  EXTREME_UV Approximately 3 petahertz to approximately 30 petahertz; extreme ultraviolet.   55
EM_POLARIZATION_TYPE   The type(s) of electromagnetic polarization established by an <AERIAL> of an emitter and/or a receiver.    
  CIRCULAR The electric displacement vector or the electric field vector in a transverse wave propagating through a medium rotates; circular.   1
  CROSSED_VERT_HORIZ Crossed with emission vertical and detection horizontal.   2
  CROSSED_HORIZ_VERT Crossed with emission horizontal and detection vertical.   3
  ELLIPTICAL A vector representing a wave component at any point in space describes an ellipse in a plane perpendicular to the propagation <DIRECTION>; elliptical.   4
  LINEAR_HORIZONTAL The electric lines of force are in a horizontal <DIRECTION>; linear horizontal.   5
  LINEAR_VERTICAL The electric lines of force are in a vertical <DIRECTION> and the magnetic lines of force are in a horizontal <DIRECTION>; linear vertical.   6
  PARALLEL_INCID_RFLCT_PLANE Parallel to incidence-reflectance plane.   7
  PERPENDICULAR_INCID_RFLCT-
_PLANE
Perpendicular to incidence-reflectance plane.   8
  RANDOM Random or none.   9
EM_PROPAGATION_CONDITION   The type of condition causing variation in the propagation path of electromagnetic energy due to interaction of the emitted energy with the vertical density gradient of the <ATMOSPHERE>.    
  RADIO_DUCT The propagation of radio energy under conditions in the <ATMOSPHERE> of the <EARTH> in which the refractive index (<<REFRACTION_INDEX_REAL_PART>>) decreases with <<ALTITUDE_MSL>> at a rate greater than 157 x 10-6 per kilometre; radio duct. The unit of measure equation is defined by N = (n-1) x 106 where n is the <<REFRACTION_INDEX_REAL_PART>> and is known as an "N-unit". Radio energy that originates within a duct and leaves the <AERIAL> at angles near the horizontal may be trapped within the duct.   1
  STANDARD The propagation of radio energy under conditions of standard refraction in the <ATMOSPHERE> of the <EARTH>, that is, an <ATMOSPHERE> or section of the <ATMOSPHERE> in which the refractive index (<<REFRACTION_INDEX_REAL_PART>>) decreases uniformly with <<ALTITUDE_MSL>> at a rate of approximately 40 x 10-6 per kilometre. The unit of measure equation is defined by N = (n-1) x 106 where n is the <<REFRACTION_INDEX_REAL_PART>> and is known as an "N-unit".   2
  SUBSTANDARD The propagation of radio energy under conditions of substandard refraction in the <ATMOSPHERE> of the <EARTH>, that is, an <ATMOSPHERE> or section of the <ATMOSPHERE> in which the refractive index (<<REFRACTION_INDEX_REAL_PART>>) decreases with <<ALTITUDE_MSL>> at a rate of less than 40 x 10-6 per kilometre. The unit of measure equation is defined by N = (n-1) x 106 where n is the <<REFRACTION_INDEX_REAL_PART>> and is known as an "N-unit".   3
  SUPERSTANDARD The propagation of radio energy under conditions of superstandard refraction in the <ATMOSPHERE> of the <EARTH>, that is, an <ATMOSPHERE> or section of the <ATMOSPHERE> in which the refractive index (<<REFRACTION_INDEX_REAL_PART>>) decreases with <<ALTITUDE_MSL>> at a rate of greater than 40 x 10-6 per kilometre. The unit of measure equation is defined by N = (n-1) x 106 where n is the <<REFRACTION_INDEX_REAL_PART>> and is known as an "N-unit".   4
ENGINEER_TRENCH_TYPE   The type of an <ENGINEER_TRENCH>.    
  INFANTRY_TRENCH <INFANTRY_TRENCH>.   1
  SOVIET_ANTI_TANK_DITCH An <ENGINEER_TRENCH> and <PARAPET> combination designed according to Soviet military doctrine to prevent crossing by <ARMOURED_TRACKED_VEHICLE>s; Soviet anti-tank ditch.   2
  US_ANTI_TANK_DITCH An <ENGINEER_TRENCH> and <PARAPET> combination designed according to US military doctrine to prevent crossing by <ARMOURED_TRACKED_VEHICLE>s; US anti-tank ditch.   3
EXPLOSIVE_MINE_TYPE   The type of an <EXPLOSIVE_MINE>.    
  ANTI_PERSONNEL An <EXPLOSIVE_LAND_MINE> designed to kill or incapacitate <HUMAN>s; anti-personnel.   1
  ANTI_TANK An <EXPLOSIVE_LAND_MINE> designed to immobilize or destroy <ARMOURED_TRACKED_FIGHTING_VEHICLE>s and their occupants; anti-tank.   2
  ANTI_TANK_SMART A "smart" anti-tank <EXPLOSIVE_LAND_MINE> designed to produce a mobility or catastrophic kill by a top or side attack when a target <VEHICLE> activates the fuse with acoustic or seismic signals. When activated, an infrared-sensored, explosive-formed penetrating or a shaped-charge rocket warhead sublet is launched and the warhead acquires the target.   3
  AQUATIC_ACTIVE An <EXPLOSIVE_NAVAL_MINE> actuated by the reflection from a target of a signal emitted by the <EXPLOSIVE_NAVAL_MINE>; aquatic active.   4
  AQUATIC_BOTTOM An <EXPLOSIVE_NAVAL_MINE> with negative buoyancy that remains on the <WATERBODY_FLOOR>; aquatic bottom. An aquatic bottom <EXPLOSIVE_NAVAL_MINE> is also known as a ground <EXPLOSIVE_NAVAL_MINE>.   5
  AQUATIC_BURIED An <EXPLOSIVE_NAVAL_MINE> with negative buoyancy that is completely buried in the <WATERBODY_FLOOR>; aquatic buried.   6
  AQUATIC_DRIFTING A buoyant or neutrally buoyant <EXPLOSIVE_NAVAL_MINE>, free to drift under the influence of <WATER_WAVE>s, <WIND>s, <WATER_CURRENT>s or the <TIDE>; aquatic drifting.   7
  AQUATIC_FLOATING An <EXPLOSIVE_NAVAL_MINE> floating on a <WATERBODY_SURFACE>; aquatic floating.   8
  AQUATIC_FREE A moored <EXPLOSIVE_NAVAL_MINE>, the mooring of which has parted or been cut so that it is floating free; aquatic free.   9
  AQUATIC_MOORED A contact or influence-operated <EXPLOSIVE_NAVAL_MINE> of positive buoyancy held below the <WATERBODY_SURFACE> by a mooring attached to a sinker or <ANCHOR> on the <WATERBODY_FLOOR>; aquatic moored.   10
  AQUATIC_PROUD An <EXPLOSIVE_NAVAL_MINE> that is partially buried in the <WATERBODY_FLOOR>; aquatic "proud".   11
  AQUATIC_WATCHING An <EXPLOSIVE_NAVAL_MINE> secured to its mooring but showing on the <WATERBODY_SURFACE> possibly only in certain tidal conditions; aquatic "watching".   12
  DECOY A phony or decoy <EXPLOSIVE_MINE>.   13
  INFLUENCE A <EXPLOSIVE_MINE> actuated by the influence of a target on some physical condition in the vicinity of the <EXPLOSIVE_MINE> or on radiations emanating from the <EXPLOSIVE_MINE>.   14
  MIXED An <EXPLOSIVE_MINE>s of multiple characteristics; mixed.   15
  WIDE_AREA An <EXPLOSIVE_LAND_MINE> dispersed by <FIELD_ARTILLERY> that uses ground <SENSOR>s (for example: seismic, acoustic, and/or magnetic) to activate itself against moving targets within a designated range; wide area.   16
EXTERIOR_WALL_CONSTRUCTION-
_TYPE
  The type of <MATERIAL> and/or techniques used to construct an <EXTERIOR_WALL>; exterior wall construction type.    
  BRICK Bricks cemented with mortar.   1
  GLASS Predominantly of glass.   2
  HOLLOW_CONCRETE_BLOCK Hollow concrete blocks cemented with mortar.   3
  HOLLOW_FIRED_CLAY_BLOCK Hollow fired clay blocks cemented with mortar.   4
  MASONRY Masonry.   5
  PREFABRICATED_CONCRETE_TILT_UP Constructed of load bearing pre-fabricated concrete sheets assembled at the building <SITE>; pre-fabricated concrete tilt up.   6
  REINFORCED_CONCRETE Reinforced concrete.   7
  WOOD_PRODUCT Wood product secured to framing <WALL_STUD>s.   8
EXTERIOR_WALL_FORTIFICATION   The <MATERIAL>s and/or techniques used to fortify an <EXTERIOR_WALL>; exterior wall fortification.    
  NONE_PRESENT No <FORTIFICATION>s are present; none present.   1
  ONE_ROW_SANDBAGS One row of sandbags.   2
  TIMBERS Timbers leaning against the exterior.   3
  TWO_ROWS_SANDBAGS Two rows of sandbags.   4
EXTERNAL_PAINT_SCHEME   The applied external paint scheme of an <OBJECT>.    
  DESERT_CAMOUFLAGE Desert camouflage.   1
  FOREST_CAMOUFLAGE Forest camouflage.   2
  NONE_PRESENT None present.   3
  UNIFORM_COLOUR Uniform colour.   4
  WINTER_CAMOUFLAGE Winter camouflage.   5
EXTERNAL_WINDOW_COVERING   The type of the external covering of a <WINDOW>.    
  BARS Framework of metal bars.   1
  HURRICANE_SHUTTERS Shutters that provide protection for <WINDOW>s during <HURRICANE>s.
EXAMPLES     Bahama shutter, awning, storm pane, roll down shutter, accordion shutter.
  2
  NONE_PRESENT No external covering is present; none present.   3
  WINDOW_SCREEN Fine wire mesh; window screen.   4
EXTRACTION_MINE_TYPE   The type of an <EXTRACTION_MINE>.    
  BELOW_SURFACE Tunnels are cut below the <SURFACE> of the <TERRAIN> to gain access to the mineral deposit.   1
  BORROW Borrow.   2
  HORIZONTAL_SHAFT Horizontal shaft.   3
  OPEN_PIT Open pit.   4
  PEAT_CUTTINGS Peat cuttings.   5
  PLACER Placer.   6
  PROSPECT Prospect.   7
  STRIP Strip-mine; strip. Strip mining is also known as surface mining.   8
  VERTICAL_SHAFT Vertical shaft.   9