The Land Processes Distributed Active Archive Center (LP DAAC) is responsible for the archive and distribution of NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) SRTM, which includes the global 3 arc second (~90 meter) product. The 3 arc second data was derived from the 1 arc second using sampling and averaging methods. SRTMGL3_NUMNC is used along with the SRTMGL3_NC data product and offers the number count in NetCDF. NASA Shuttle Radar Topography Mission (SRTM) datasets result from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency (NGA - previously known as the National Imagery and Mapping Agency, or NIMA), as well as the participation of the German and Italian space agencies. The purpose of SRTM was to generate a near-global digital elevation model (DEM) of the Earth using radar interferometry. SRTM was a primary component of the payload on the Space Shuttle Endeavour during its STS-99 mission. Endeavour launched February 11, 2000 and flew for 11 days. SRTM collected data in swaths, which extend from ~30 degrees off-nadir to ~58 degrees off-nadir from an altitude of 233 kilometers (km). These swaths are ~225 km wide, and consisted of all land between 60° North (N) and 56° South (S) latitude. This accounts for about 80% of Earth’s total landmass. Improvements/Changes from Previous Versions * Voids in the Version 3.0 products have been filled with ASTER Global Digital Elevation Model (GDEM) Version 2.0, the Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010), and the National Elevation Dataset (NED).
Science Keywords: |
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Spatial Extent: | Bounding Rectangle: N: 60.0 S: -56.0 E: 180.0 W: -180.0 |
Data Format(s): | Archive: NetCDF4Distribution: NetCDF4 |
Temporal Extent: | Platform(s): | STS-99 | |
Data Center(s): | LP DAAC | Instrument(s): | SRTM C-BAND RADAR |
Version: | 003 |
10.5067/MEASURES/SRTM/SRTMGL3_NUMNC.003
https://doi.org
Creation | |
Last Revision |
3
GRID
Complete
None
Project Short Name | Campaigns | Project Dates |
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SRTM |
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No dates provided. |
Coverage Type | Zone Identifier | Geometry | Granule Representation |
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HORIZONTAL | CARTESIAN | CARTESIAN |
90.0 Meters
90.0 Meters
U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls,
South Dakota
57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
This data center does not have any contact mechanisms listed.
U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
47914 252nd Street
Sioux Falls,
South Dakota
57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
Format: NetCDF4
Format Type: Supported
Average File Size: 2.79 MB
Total Collection File Size: 39.86 GB
Format: NetCDF4
Format Type: Supported
Media: https
Average File Size: 2.79 MB
Total Collection File Size: 39.86 GB