The U.S. Geological Survey (USGS) and the National Geospatial-Intelligence Agency (NGA) have collaborated in the development of a much improved global elevation model, the Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010).  GMTED2010 replaces the widely used, 15-year-old GTOPO30 terrain model as the best available global digital elevation model.    Useful for regional-, continental-, and global-scale applications, […]