1993. National Geophysical and Solar-Terrestrial Data Center. This map shows light sources from human settlements around the world observed during 1993. The Defense Meteorological Satellite Program (DMSP) Oper... National Geophysical and Solar-Terrestrial Data Center.
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1993. Environmental Systems Research Institute (Redlands, Calif.). This point shapefile represents the locations of the major cities (with populations) of the world at a scale of 1:15,000,000. This layer is part of... Environmental Systems Research Institute (Redlands, Calif.).
1993. Environmental Systems Research Institute (Redlands, Calif.) and National Geographic Society (U.S.). This polygon shapefile contains generalized boundaries for the countries of the world and population statistics at 1:50,000,000 scale. This layer i... Environmental Systems Research Institute (Redlands, Calif.).
1993. Environmental Systems Research Institute (Redlands, Calif.). World Gazetteer represents the locations and proper names for map features around the world. The gazetteer includes attribute and annotation name i... Environmental Systems Research Institute (Redlands, Calif.).