Create an account or log in to save stories. A comparison shows the higher definition of a digital elevation map next to an image created from a traditional contour map. Chuck Fritz is a little ...

This digital elevation map, produced from satellite data overlain on an image taken by the Mars Orbital Camera on NASA’s Mars Global Surveyor spacecraft, shows changes in elevation along the ...

The original global digital elevation model was released in June of 2009, but the new version adds more than a quarter million new stereo-pairs to the data set, improving spatial resolution and ...

The resulting Global Digital Elevation Map covers 99% of the Earth's surface, and will be free to download and use. The Terra satellite, dedicated to Earth monitoring missions, has shed light on ...

Geographers, video game designers, and anyone else who needs a detailed three-dimensional map of Earth's mountains, valleys, and other land areas now have one available. Technicians at the U.S ...

Digital cartographer Robert Szucs turns maps of rivers into rainbow-colored pieces of art. ... "It's all 100% scientific, based on satellite data and digital elevation models," Szucs says.

Digital terrain elevation data has been in production since 1968 when the Air Force’s Aeronautical Chart and Information Center, the oceanographic and charting services of the U.S. Naval Hydrographic ...

It’s packed with millions of POIs and features digital elevation maps that show you shaded terrain contours at higher zoom levels. With the nüvi 500 series, ...