The POSTEL Service Centre has produced the first global land cover map at 300 m resolution, that discriminates the land surfaces in 22 classes representatives of the continental ecosystems. Cover types include croplands, wetlands, forests, artificial surfaces, water bodies and permanent snow and ice. The freely available map is based on 20 Terabytes of imagery [...]
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The US Census Bureau recently published new 2007 TIGER/Line Shapefiles. They contain current geographic areas (boundaries of governmental units as of January 1, 2007) and Census 2000 vintage geography. Direkt donwload is here. |
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