Description of the earth surface features in terms of terrain
Keywords: terrain, relief, contour lines, elevation, slope, landform, bathymetry, geo-morphological units, photogrammetry, topography

Global Median Elevation, Terrain Slope and Aspect Data 20 March 2006 Slope gradient and slope aspects for 30 arc sec grids have been compiled using elevation data from the Shuttle Radar Topography Mission (SRTM). The SRTM data is publicly available as 3 arc second (approximately 90 meters resolution at the equator) DEMs (CGIAR-CSI, 2006). [more]

dernière mise à jour:  jeudi 23 avril 2009