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.

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.

Arc-Grid based hillshaded depiction of NASA 3as SRTM Version 2 for Africa, seamless compilation of 3 204 1x1 overlapping tiles. The SRTM-3AS_IMGCAT_HSHD image data layer is comprised of 3204 derivative calculated seamless image catalog features derived based on 0.000833_ data originally from FAO. SRTM (Shuttle Radar Topography Mission)

1:750 000 scale seamless base map of continental Africa based on VMap0-Ed3, DCW, and Classified GTopo30 DEM. VMAP0 is Vector Map for Level 0; DCW is Digital Chart of the Word; DEM is Digital Elevation Model.. The VRTL_MAP image data layer is comprised of 51784x51084 derivative image virtual base map features derived based on 1:750 000 data originally from FAO.

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.

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.

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.

Enhanced natural color and 2.5d hillshade orthorectified image derivative. The LKTAN_IMGCAT_IMGSHD image data layer is comprised of 120 derivative calculated seamless image catalog features derived based on 15 metre data originally from FAO.