NASA Global Web-Enabled Landsat Data Annual Global 30 m V003
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): | n/a |
| Temporal Extent: | Platform(s): | LANDSAT-7, LANDSAT-5 | |
| Data Center(s): | LP DAAC | Instrument(s): | ETM+, TM |
| Version: | 003 | ||
- GENERAL DOCUMENTATION: https://doi.org/10.5067/MEaSUREs/GWELD/GWELDYR.003 , Data set landing page at the LP DAAC
- USER'S GUIDE: https://lpdaac.usgs.gov/documents/497/GWELD_User_Guide_V31.pdf, The technical information in the User's Guide enables users to interpret and use the data products.
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://lpdaac.usgs.gov/documents/496/GWELD_ATBD.pdf, The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products.
Collection Information
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Version Description
Initial 30 m Global WELD product developed for any terrestrial non-Antarctic location at yearly time intervals -
DOI
10.5067/MEaSUREs/GWELD/GWELDYR.003
https://doi.org
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Data Identification
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Processing Level
2
Geophysical Quantities at the sensor resolution or geolocated
- Quality
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Collection Progress
Complete
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Access Constraints
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.
Related URLs
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| MEaSUREs |
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No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | GEODETIC |
Tiling Identification Systems
| System Name | Coordinate 1 Min | Coordinate 1 Max | Coordinate 2 Min | Coordinate 2 Max |
|---|---|---|---|---|
| MODIS Tile SIN | 0.0 | 35.0 | 0.0 | 17.0 |
Location Keywords
Data Centers
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SD-STATE/GISCCE
PROCESSORGeographic Information Science Center of Excellence, South Dakota State University
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
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LP DAAC
ARCHIVERLand Processes Distributed Active Archive Center
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
There are no listed data contacts for this collection.
Archive And Distribution Information
There is no archive and distribution information for this collection.