The U.S. Geological Survey (USGS) Releases New Heights of Accuracy for World Topography
December 1, 2011 in Associate Membership, Business, Geomatics, Land Surveying, Links, News
USGS - Science for a Changing World
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, GMTED2010 is derived from numerous higher quality elevation data sources that were unavailable at the time GTOPO30 was developed. The new sources include near-global Digital Terrain Elevation Data (DTED®) from the Shuttle Radar Topography Mission (SRTM); Canadian elevation data; SPOT 5 Reference 3D data; data from NASA’s Ice, Cloud, and land Elevation Satellite (ICESat); and updated Antarctica and Greenland terrain models.
