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Features.md

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Layers and features in the data

Layers

The data is divided in thematic layers, each layer is represented by a geojson file.

  • continents
  • geoareas
  • islands
  • marine
  • terrain
  • waterrelated
  • deserts
  • biomes

Note: while deserts are waterrelated, they get their own layer.

Features

The following table shows which features can currently be expected in the different layers. You can also find this information structured in featureclasses_layers.json. This is work in progress, and featureclasses as well as layers may still be added or changed if deemed useful.

featureclass layer definition wikidata
archipelago islands An archipelago is a group of islands Q33837
basin terrain here a basin is a depression on land (seawater covered basins are found in the sea file) Q190429
coast terrain a coastal land area Q93352
continent continents large landmass as recognized by cultural convention Q5107
delta waterrelated a river delta, a landform at the mouth of a river Q43197
desert deserts a landscape with little precipitation Q8514
foothills terrain hilly transition zone between plains and higher mountains or hills Q1354045
geoarea geoareas a geographic region Q82794
gorge terrain a narrow and deep ravine between cliffs, a canyon Q150784
island islands an island: land completely surrounded by water and smaller than a continent Q23442
isthmus terrain a narrow strip of land connecting two larger land areas Q93267
lake waterrelated a body of relatively still water located in a basin Q23397
lowland terrain plains which are located close to the sea level (not above ~150m) Q193071
mountainrange terrain an area with several geologically related mountains Q46831
peninsula terrain a landform which is surrounded more than half but not completely by water Q34763
plain terrain a flat geographic region (see also lowland and plateau) Q160091
plateau terrain a flat geographic region which is higher than the surrounding Q75520
tundra biomes a biome where the tree growth is hindered by low temperatures and short grow seasons Q43262
valley terrain low area between hills, often with a river running through it Q39816
wetlands waterrelated land area that is permanently or seasonally saturated with water Q170321
bay marine body of water connected to an ocean or lake, formed by an indentation of the shoreline Q39594
channel marine type of landform; confined river; strait Q1210950
fjord marine long, narrow inlet of the ocean created in a valley carved by glacial activity Q45776
generic marine
gulf marine large inlet that is an arm of an ocean or sea Q1322134
inlet marine an indentation of a shoreline that often leads to an enclosed body of salt water, such as a sound, bay, lagoon, or marsh Q1172599
lagoon marine shallow body of water separated from larger body of water by a barrier Q187223
ocean marine very large body of saline water Q9430
reef marine feature lying beneath the surface of the water Q184358
river marine larger natural watercourse Q4022
sea marine large body of saline water Q165
sound marine long, relatively wide body of water, connecting two larger parts of the sea Q491713
strait marine naturally formed, narrow waterway that connects two larger bodies of water Q37901

Properties

While all properties are optional you should provide these properties for easier handling (identification)

  • name
  • featureclass
  • scalerank
  • region
  • subregion
  • wikidata

Regions

These are the currently used values for the region, you should not add more regions:

  • Africa
  • Antarctica
  • Asia
  • Europe
  • North America
  • Oceania
  • Seven seas (open ocean)
  • South America

Subregions

These are the currently used values for the subregion but you can add more subregions as you see fit:

  • Arabian Sea
  • Arctic Archipelago
  • Arctic Ocean
  • Australasia
  • Bay of Bengal
  • British Isles
  • Central America
  • Comores
  • Falkland Islands
  • Galapagos islands
  • Greenland
  • Iceland
  • Indian Ocean
  • Is. Revillagigedo
  • Malay Archipelago
  • Mascarene Islands
  • Mediterranean Sea
  • Melanesia
  • Micronesia
  • New Zealand
  • North Atlantic Ocean
  • Polynesia
  • Seychelles
  • South China Sea
  • Southern Atlantic Ocean
  • Southern Indian Ocean
  • West Indies

imported from geography_10m.geojson v.5.0.0 feature classes

  • 7 "continent"
  • 68 "peninsula"
  • 12 "delta"
  • 4 "isthmus"
  • 295 "island"
  • 165 "archipelago"
  • 58 "desert"
  • 4 "tundra"
  • 3 "wetlands"
  • 222 "mountain_range"
  • 72 "plateau"
  • 37 "coast"
  • 30 "plain"
  • 6 "valley"
  • 5 "lowland"
  • 11 "basin"
  • 3 "foothills"
  • 3 "lake"
  • 3 "gorge"
  • 44 "geoarea"