2015. Herried. This map was produced by the Polar Geospatial Center at the University of Minnesota with a generous donation from Lockheed Martin Antarctic Support... Polar Geospatial Center.
2015. Collins Bartholomew Ltd. This raster dataset is a representation of the coverage area for 2G mobile communications networks around the world. Mobile Coverage is released an... Collins Bartholomew Ltd.
2015. Collins Bartholomew Ltd. This raster dataset is a representation of the coverage area for 3G mobile communications networks around the world. Mobile Coverage is released an... Collins Bartholomew Ltd.
2015. Collins Bartholomew Ltd. This raster dataset is a representation of the coverage area for 4G mobile communications networks around the world. Mobile Coverage is released an... Collins Bartholomew Ltd.
2015. East View Cartographic, Incorporated and East View Cartographic, Incorporated. LandScan 2015 Global Population Database is a raster theme representing population counts at 30 arc second resolution (1 km. or finer) as of 2015. East View Cartographic, Incorporated.