What is the vertical accuracy of the 3D Elevation Program (3DEP) DEMs?
The most recently published figure of absolute vertical accuracy of the 3DEP DEMs within the conterminous United States, in terms of the National Standard for Spatial Data Accuracy (NSSDA) at 95% confidence level, is 3.04 meters.
It is important to note that the vertical accuracy actually varies significantly across the U.S. because of differences in source quality, terrain relief, land cover, and other factors.
Details of this analysis are published in Accuracy Assessment of the U.S. Geological Survey National Elevation Dataset, and Comparison with Other Large-Area Elevation Datasets—SRTM and ASTER: U.S. Geological Survey Open-File Report 2014–1008.
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The National Map—New data delivery homepage, advanced viewer, lidar visualization
As one of the cornerstones of the U.S. Geological Survey’s (USGS) National Geospatial Program, The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. The National Map is featuring direct links to new and improved GIS data access utilities...
The 3D Elevation Program—Supporting California's Economy
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Ostergren, Carol L.; Decker, Drew; Carswell,, William J.
Coastal National Elevation Database
The Coastal National Elevation Database (CoNED) Applications Project develops enhanced topographic (land elevation) and bathymetric (water depth) datasets that serve as valuable resources for coastal hazards research (Danielson and others, 2016; Thatcher and others, 2016). These datasets are used widely for mapping inundation zones from riverine...
Danielson, Jeffrey J.; Poppenga, Sandra K.; Tyler, Dean J.; Palaseanu-Lovejoy, Monica; Gesch, Dean B.
The 3D Elevation Program: summary for Alaska
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USGS 3DEP Lidar Point Cloud Now Available as Amazon Public Dataset
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USGS Topo Base Map Refreshed and Other Updates
The “USGS Topo Base Map” service named “USGS Topo” has been refreshed with new data and design changes. In addition, several of the “Data Availability”, or “Data Index” services have new cloud hosted URLs.
New Elevation Map Service Available From the USGS 3D Elevation Program
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Automated GNIS Summit Core Generation
A few summit cores delineated by the National Terrain Mapping program in the Blue Ridge province, North Carolina. While many summits are mapped via the Geographic Names Information System points, boundaries for these features don't exist. This program is automating procedures to do so for the whole nation.
Elevation
The National Elevation Dataset (NED) is the primary elevation data product produced and distributed by the USGS National 3D Elevation Program (3DEP). The NED provides seamless raster elevation data of the conterminous United States, Alaska, Hawaii, and the island territories. The NED is derived from diverse source data sets that are processed to a specification with a
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PubTalk 11/2010 — Silicon, Software, and Science
Monitoring the Earth's Landscape with Low-Cost High-Tech
by Rian Bogle, Remote Sensing Specialist
- The USGS is one of the world's largest providers of remote sensing data, employing the best tools and techniques to expand our knowledge of the Earth.
- Working with low-cost field and aerial imaging technologies,