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 […]

Retreat of the Helheim Glacier between 2001 and 2005. Images from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite.

Creating a Time Series Visualization of Two Decades of Changes in a Glacier

NASA has created a time series visualization of Greenland’s Helheim Glacier using 20 years of data from radar, lasers, and high-resolution cameras.

Mapping Noise Pollution

As noise pollution continues to be a major issue for expanding urban areas, novel geospatial technologies have been deployed to better monitor and measure noise pollution.

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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