elevation data

GIS Data

How LiDAR is Being Used to Help With Natural Disaster Mapping and Management

August 19, 2017By GIS ContributorGIS Data

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.

Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) - Global elevation data. Source: USGS.

New Global Elevation Data Available to Download: Global Multi-resolution Terrain Elevation Data 2010

November 30, 2011By Caitlin DempseyGIS Data

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 […]

New High Resolution DEM of Antarctica Available for Downloading

250 million measurements have resulted in the release of the highest available resolution digital elevation model (DEM) covering Antarctica.

New Geospatial Forum Launches

Last month, geospatialOnline launched a GIS discussion forum.

Elements of a Map

Maps are the primary tools by which spatial relationships are visualized. Maps therefore become important documents. There are several key elements that should be included each time a map is created in order to aid the viewer in understanding the communications of that map and to document the source of […]

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