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Download free global elevation data products using AppEEARS or EarthExplorer. Free registration is required.
Download Aster Global Digital Elevation Model (GDEM version 3)
In EarthExplorer, select “Digital Elevation” under the "Data Sets" tab and choose an option:
Shuttle Radar Topography Mission (SRTM)
Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010)
3D Elevation Program (3DEP) product updates and status maps are available at these sites:3DEP Product Availability3DEP Data Acquisition Status MapsAcquire updated products through The National Map Downloader, The National Map Services, or through a bulk data request.3D Elevation Program NewsThe National Map Data Delivery News Subscribe to Simple Notification Services to receive emails regarding...
A Digital Elevation Model (DEM) is a representation of the bare ground (bare earth) topographic surface of the Earth excluding trees, buildings, and any other surface objects. DEMs are created from a variety of sources. USGS DEMs used to be derived primarily from topographic maps. Those are being systematically replaced with DEMs derived from high-resolution lidar and IfSAR (Alaska only) data...
The most recently published figure of absolute vertical accuracy of the 3D Elevation Program (3DEP) DEMs within the conterminous United States, in terms of the National Standard for Spatial Data Accuracy (NSSDA) at 95% confidence level, is 3.04 meters. It is important to note that the vertical accuracy actually varies significantly across the U.S. because of differences in source quality, terrain...
Access global land cover data using two sources on EarthExplorer:Global Land Cover Characterization (GLCC) Select "GLCC" under "Land Cover" in the "Data Sets" tab in EarthExplorer. Derived from 1-km Advanced Very High Resolution Radiometer (AVHRR) data collected April 1992-March 1993. Moderate Resolution Imaging Spectroradiometer (MODIS) Land Cover Select "NASA LPDAAC Collections" under the "Data...
Digital elevation data for the United States and its territories are available through The National Map Downloader. Click the “Help” link at the top of the page for detailed instructions on how to find and download data. There is a separate site for The National Map Services.The 3D Elevation Program (3DEP) products and services available through The National Map consist of standard digital...
As sea levels rise around the planet, as storm surges threaten islands and coastal communities, decision makers face a lot of questions about how to...
How 3D Elevation Can Benefit Each State and Puerto Rico