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  • Enhanced natural color orthorectified image baseline, reprojected and mosiaced into single coverage of a Megabasin. Source: NASA Landsat Orthorectified MSS, TM and ETM+. The VOLTA_TM-RGB image data layer is comprised of 42465x46324 derivative image satellite based imagery features derived based on 28.5 metre data originally from TM.

  • 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.

  • Enhanced natural color and 2.5d hillshade orthorectified image derivative, reprojected and mosaiced into single coverage of a Megabasin. Source: NASA Landsat Orthorectified MSS, TM and ETM+. The VOLTA_TM-SHD image data layer is comprised of 42465x46324 derivative image satellite based imagery features derived based on 28.5 metre data originally from TM.

  • ETM+ based natural-color image mosaic base contrast-lightened for better visual integration with 1:1m scale cartographic vector data. The AF_ETM_BASE image data layer is comprised of 18910x23158 derivative image satellite based imagery features derived based on 465 metre data originally from ETM+ Browse.

  • ETM+ Browse based cartographic reference, 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_ETM-SHD image data layer is comprised of 37221x45583 derivative image satellite based imagery features derived based on 0.0020833333_ data originally from ETM+ Browse.

  • 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.

  • SRTM-30as 2.5d enhanced ETM+ based natural-color image mosaic baseline. SRTM is Shuttle Radar Topography Mission. The ETM_MOSAIC_SHD image data layer is comprised of 18899x19509 derivative image satellite based imagery features derived based on 465 metre data originally from ETM+ Browse.

  • 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.