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Start Over Year 2001 Subject Imagery and Base Maps Theme Environment
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for Alaska. Data are in an Albers Equal-Area Conic projection and hav... Geological Survey (U.S.).
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for Hawaii. Data are in an Albers Equal-Area Conic projection and hav... Geological Survey (U.S.).
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for Puerto Rico and the Virgin Islands. Data are in an Albers Equal-A... Geological Survey (U.S.).
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for the conterminous United States. Data are in an Albers Equal-Area ... Geological Survey (U.S.).
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, and 2006. Nature Conservancy (U.S.). This data product was created as part of the Northwest Atlantic Marine Ecoregional Assessment. The Nature Conservancy developed this science-based ... Northeast Ocean Data.
2001. National Geophysical and Solar-Terrestrial Data Center. This map shows light sources from human settlements around the world observed during 2001. The Defense Meteorological Satellite Program (DMSP) Oper... National Geophysical and Solar-Terrestrial Data Center.