Seamless polygonal continental landmass and oceanic island mask data layer derived from SRTM-SWBD tiled database. The MASK_PY shapefile data layer is comprised of 4333 derivative vector surface water bodies features derived based on 1:100 000 data originally from SRTM-SWBD. The layer provides nominal analytical/mapping at 1:125 000. Data processing 60% complete globally, with African and Arabian subsets 100% complete. Acronyms and Abbreviations: SRTM - Shuttle Radar Topography Mission; SWBD - Surface water Body.

Volta Basin SRTM 3 as Based Hillshade Mosaic. SRTM is Shuttle Radar Topography Mission. The HSHD_MOS grid data layer is comprised of 13201x14401 derivative raster hillshade features derived based on 0.000833_ data originally from SRTM 3as v.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.

Provides spatial reference for Tropics of Capricorn and Cancer, the Equator and the Prime Meridian. The TROP_REF shapefile data layer is comprised of 4 derivative line reference lines for tropics-equator-meridian features derived based on 1:1 000 000 data originally from FIRI. The layer provides nominal analytical/mapping at 1:1 000 000. Acronyms and Abbreviations: FIRI - Inland Water resources and Aquaculture Service, recently changed in FIMA - Aquaculture Management and Conservation Service.

Volta Basin SRTM 3 as Based DEM Mosaic. SRTM is Shuttle Radar Topography Mission; DEM is Digital Elevation Model. The DEM_MOS grid data layer is comprised of 13201x14401 derivative raster digital elevation model features derived based on 0.000833_ data originally from SRTM 3as v.2.

Lake Tanganyika SRTM 3 as DEM Mosaic. The DEM_MOS grid data layer is comprised of 14401x16801 derivative raster digital elevation model features derived based on 0.000833_ data originally from SRTM. The layer provides nominal analytical/mapping at 1:250 000. Acronyms and Abbreviations: SRTM - Shuttle Radar Topography Mission DEM - Digital Elevation Model

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.

Catalog of Arc-Grid based derivaitive of SRTM 3-arc second Version 2 DEM for Africa, seamless baseline of 3 204 1x1 overlapping tiles. SRTM is Shuttle Radar Topography Mission; DEM is Digital Elevation Model. The SRTM-3AS_IMGCAT_BASE Image data layer is comprised of 3204 derivative calculated seamless image catalog features derived based on 0.000833_ data originally from FAO.

SRTM 1x1 degree tile reference layer with various encoding attributes. The 1X1_PY shapefile data layer is comprised of 64800 derivative vector surface water bodies features derived based on 1:100 000 data originally from SRTM-SWBD. The layer provides nominal analytical/mapping at 1:125 000. Data processing 60% complete globally, with African and Arabian subsets 100% complete. Acronyms and Abbreviations: SWBD - Surface water Body SRTM - Shuttle Radar Topography Mission;