Natural polar ecosystems GeoNetwork test user Antarctic ecosystem Arctic ecosystem polar ecosystem A harmonised database of natural ecosystems in the Circumpolar Arctic, based on published vegetation maps. GeoNetwork test centre Unknown 2000 Maps and graphics Web page 06d3d8ab-3257-4d8c-9ff7-7b3bf4ca10d2 Compiled from published vegetation maps of the 8 circumpolar countries. en Unknown North 90, South -90, East 180, West -180. (Global) Access constraints: None. Usage constraints: No restrictions