NASA - Visible Earth
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2nd generation NASA Blue Marble image base, resampled and 2.5d enhanced using SRTM 3 as DEM to provide visual and map output reference for HydroShed data of Africa. SRTM is Shuttle Radar Topography Mission; DEM is Digital Elevation Model.. The AF_BMNG-SHD image data layer is comprised of 37221x45583 derivative image satellite based imagery features derived based on 0.0020833333_ data originally from MODIS BlueMarble-2.
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2.5d enhanced version of NASA Blue-Marble mosaic. The BLUMRBL_SHD image data layer is comprised of 9600x9600 derivative image satellite based imagery features derived based on 0.00833_ data originally from MODIS BlueMarble-1 generation.
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Contrast enhanced satellite image mosaic based on 2nd generation NASA Blue Marble imagery base. The AF_BMNG_BASE image data layer is comprised of 18612x22793 derivative image satellite based imagery features derived based on 0.0041666667_ data originally from MODIS BlueMarble-2.