A digital map of the elevation of an area on the earth. The data are either collected by a private party or purchased from an organization such as the U.S. Geological Survey (USGS) that has ...

This first-ever global digital-elevation model (DEM) of Mercury combines more than 10,000 images acquired by the spacecraft to take viewers across the wide-open spaces of the tiny world.

Love, Matthew R 1 ; Eakins, Barry W 2 ; Caldwell, Jason R 3. 1 CIRES/NGDC 2 CIRES/NGDC 3 CU Boulder. CIRES scientists at NGDC have created tested and reviewed a new Digital Elevation Model (DEM) ...

The digital elevation models, or DEMs, serve as a benchmark for measuring future climate changes in the Arctic by assisting scientists studying glaciers, permafrost collapse, and coastal retreat.

A DEM is a computer-generated 3D topographic map that shows the height of everything on the earth’s surface. Current elevation models for the Arctic have a resolution of one kilometer—Morin’s models ...

PlanetObserver has released PlanetDEM, its new global Digital Elevation Model (DEM) with a 30m and a 90m resolution. This new DEM offers an updated, reliable, ...

Although random elevation errors are relatively high in the map (±45 m in the accumulation area 2) and in the satellite DEMs (±15 m for ASTER (ref. 12), ±10 m for Spot5 (ref. 13)), they are ...

A research team led by Prof. Di Kaichang from the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences has developed an innovative method to enhance the study of ...

The new Arctic digital elevation model maps show a much more precise picture of the Interior. This map shows downtown Fairbanks rendered to show slopes, going from white (no slope) to red (steep ...