The release of the ASTER Global Digital Elevation Model (GDEM) was announced by Japan’s Ministry of Economy, Trade and Industry (METI) and NASA on June 29, 2009. The GDEM is distributed as 1 x 1 degree tiles, and has a spatial resolution of 30 m (i.e. equivalent to Landsat TM and ETM+). The AfSIS team is currently compiling the GDEM for the African continent, and will be running analysis and quality checks on this during the course of the next few weeks.

The GDEM data can be searched and downloaded from https://wist.echo.nasa.gov