Seamless nominal 90 metre DEM (Digital Elevation Model) of Volta Megabasin. The VOLTA_HSHD image data layer is comprised of 13201x14401 derivative raster hillshade features derived based on 0.000833_ data originally from SRTM 3as v.2.

Wetlands, re-encoded from country separates of WRI-AFDS to a seamless continental derivative. The WTLND_PY shapefile data layer is comprised of 4404 derivative vector wetlands features derived based on 1:1 000 000 data originally from WCMC. The layer provides nominal analytical/mapping at 1:1 000 000. Acronyms and Abbreviations: WCMC - World Conservation Monitoring Centre; WRI - World Resources Institute; AFDS - African Data Sampler.