The NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Global Web-Enabled Landsat Data Annual (GWELDYR) Version 3 data product provides Landsat data at 30 meter (m) resolution for terrestrial non-Antarctica locations over annual reporting periods. GWELD data products are generated from all available Landsat 4 and 5 Thematic Mapper (TM) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) data in the U.S. Geological Survey (USGS) Landsat archive. The GWELD suite of products provide consistent data to derive land cover as well as geophysical and biophysical information for regional assessment of land surface dynamics. The GWELD products include Nadir Bidirectional Reflectance Distribution Function (BRDF)-Adjusted Reflectance (NBAR) for the reflective wavelength bands and to top of atmosphere (TOA) brightness temperature for the thermal bands. The products are defined in the Sinusoidal coordinate system to promote continuity of NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) land tile grid Provided in the GWELDYR product are layers for surface reflectance bands 1 through 5 and 7, TOA brightness temperature for thermal bands, Normalized Difference Vegetation Index (NDVI), day of year, ancillary angle, and data quality information. A low-resolution red, green, blue (RGB) browse image of bands 5, 4, 3 is also available for each granule.
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Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Archive: HDF4Distribution: HDF4 |
Temporal Extent: | Platform(s): | LANDSAT-7, LANDSAT-5 | |
Data Center(s): | LP DAAC | Instrument(s): | ETM+, TM |
Version: | 003 |
10.5067/MEaSUREs/GWELD/GWELDYR.003
https://doi.org
2
Geophysical Quantities at the sensor resolution or geolocated
Complete
The WELD products are freely available for educational, research, or commercial applications. If you use the WELD products please cite them following the WELD Citation guidelines.
Project Short Name | Campaigns | Project Dates |
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MEaSUREs |
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No dates provided. |
Coverage Type | Zone Identifier | Geometry | Granule Representation |
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HORIZONTAL | CARTESIAN | GEODETIC |
30.0 Meters
30.0 Meters
System Name | Coordinate 1 Min | Coordinate 1 Max | Coordinate 2 Min | Coordinate 2 Max |
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MODIS Tile SIN | 0.0 | 35.0 | 0.0 | 17.0 |
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
There are no listed data contacts for this collection.
Format: HDF4
Format Type: Native
Average File Size: 370.0 MB
Total Collection File Size Begin Date: 2009-01-01T00:00:00.000Z
Format: HDF4
Format Type: Native
Media: https
Average File Size: 370.0 MB
Total Collection File Size Begin Date: 2009-01-01T00:00:00.000Z