NASA Web-Enabled Landsat Data CONUS 30m Composite Pixel Center Lat/Longs V001

WELDUSLL.015 was decommissioned on December 2, 2019. Users are encouraged to use the improved monthly Global Web-Enabled Landsat Data (GWELD) Version 3, 3.1, and 3.2 datasets.

NASA’s Web-Enabled Landsat Data (WELD) are generated from composited 30 meter (m) Landsat Enhanced Thematic Mapper Plus (ETM+) mosaics of the United States and Alaska from 2002 to 2012. These mosaics provide consistent data to derive land cover as well as geophysical and biophysical products for regional assessments of surface dynamics for effective study of Earth system function. The Conterminous (CONUS) United States Latitude/Longitude (WELDUSLL) products provide the geographic latitude and longitude for the center of each 30 meter (m) pixel within a tile of WELD data. WELDUSLL is distributed in Hierarchical Data Format 4 (HDF4).

The WELD project is funded by the National Aeronautics and Space Administration (NASA) and is a collaboration between the United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center and the South Dakota State University (SDSU) Geospatial Sciences Center of Excellence (GSCE).

Known Issues

  • WELD Version 1.5 known issues can be found in the WELD Version 1.5 User Guide.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 25, 2026, 03:51 (UTC)
Created June 12, 2025, 23:15 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id f09788f6-066c-4eee-8683-fc5caf6ace35
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/MEASURES/WELD/WELDUSLL.001
license https://www.usa.gov/government-works
modified 2026-08-17T22:15:59Z
programCode {026:000}
publisher LP DAAC;SD-STATE/GISCCE
resource-type Dataset
source_datajson_identifier true
source_hash 1407abe12714c8c1a6ee4b11163aaf2ca53a70f705133c6c2c2422f2cd2ed853
source_schema_version 1.1
spatial ["CARTESIAN", [{"NorthBoundingCoordinate": 52, "WestBoundingCoordinate": -127, "EastBoundingCoordinate": -65, "SouthBoundingCoordinate": 23}]]
temporal 2002-12-01/2012-11-30
theme {"Earth Science"}