2.3 million scenes from the ASTER archive were processed to create the latest version of the ASTER Global Digital Elevation Model (GDEM).
elevation data
Maps and Cartography
ICESat-2: Highest Resolution Laser Altimeter
ICESat-2’s purpose is to collect detailed measurements of the Earth’s surface using its Advanced Topographic Laser Altimeter System (ATLAS).
GIS Data
How LiDAR is Being Used to Help With Natural Disaster Mapping and Management
Michael Shillenn, vice president and program manager with Quantum Spatial outlines three projects where LiDAR data from the USGS 3D Elevation Program (3DEP) has been used to assist in planning, disaster response and recovery, and emergency preparedness.
GIS Data
New Global Elevation Data Available to Download: Global Multi-resolution Terrain Elevation Data 2010
The U.S. Geological Survey (USGS) and the National Geospatial-Intelligence Agency (NGA) have released an updated and more accurate global elevation model that pulls data from 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 […]