Swiping down with two fingers turns the flat digital map into a three-dimensional view that helps to better understand the terrain. The paper topographical map translated the larger area.

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 ...

Digital Terrain Model (DTM): A representation of the bare earth surface generated by removing vegetation, structures, and other non-terrain features from LiDAR data.

Leveraging supercomputers and cloud computing, the USGS has released 4,800 digital terrain models (DTMs) and 155,000 high-resolution images of the red planet.