NASA Global Web-Enabled Landsat Data Monthly Global 30 m V032

Description

The NASA Making Earth System Data Records for Use in Research Environments ([MEaSUREs](https://earthdata.nasa.gov/about/competitive-programs/measures)) Global Web-Enabled Landsat Data Monthly (GWELDMO) Version 3.2 data product provides Landsat data at 30 meter (m) resolution for terrestrial non-Antarctica locations over monthly reporting periods for the 2005 epoch. GWELD products are generated from all available Landsat 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 provides a consistent data source 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 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 GWELDMO product are layers for surface reflectance bands 1-5 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. Known Issues * GWELDYR Version 3.2 known issues can be found in Section 4 of the Algorithm Theoretical Basis Document (ATBD). * Within the CFMask_State layer, the valid range is listed in the granule metadata as 0 to 65534 which includes the fill value. To avoid inclusion of the fill value, the valid range should be considered 1 to 65534 as reflected in the Data Layers Characteristics table above. * Within the CFMask_State layer, the bit flag descriptions include a description for bit 0 that contradicts the listed fill value. In the description, bit 0 is stated as 1 when fill value is present, which prevents the use of 0 as the fill value. To avoid errors when using the CFMask_State layer, bit 0 should be ignored as an indicator of fill value. Improvements/Changes from Previous Version * GWELD Version 3.2 products now use Landsat Collection 2 products as input while previous GWELD versions use Landsat Collection 1. Additionally, the Landsat FMask layer, CFMask_State, was adopted as the cloud mask replacing the DT_Cloud_State and ACCA_State layers.

Resources

Name Format Description Link
22 L57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2.1.jpg https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/GWELDMO.032/L57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2/L57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2.1.jpg
5 https://e4ftl01.cr.usgs.gov%2FMEASURES%2FGWELDMO.032%2F
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DC2763268462-LPCLOUD
5 https://doi.org%2F10.5067%2FMEaSUREs%2FGWELD%2FGWELDMO.032
5 https://lpdaac.usgs.gov%2Fdocuments%2F2086%2FGWELD_User_Guide_V32.pdf
5 https://lpdaac.usgs.gov%2Fdocuments%2F2085%2FGWELD_ATBD_V32.pdf
5 https://earthdata.nasa.gov%2Fesds%2Fcompetitive-programs%2Fmeasures%2Fglobal-long-term-multi-sensor-weld
5 https://data.lpdaac.earthdatacloud.nasa.gov%2Flp-prod-public%2FGWELDMO.032%2FL57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2%2FL57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2.1.jpg
5 https://opendap.cr.usgs.gov%2Fopendap%2Fhyrax%2FGWELD1%2FMEASURES%2FGWELDMO.032%2Fcontents.html
5 https://www.earthdata.nasa.gov%2Fcenters%2Flp-daac
5 GWELDMO.032 https://e4ftl01.cr.usgs.gov/MEASURES/GWELDMO.032/
5 https://search.earthdata.nasa.gov/search?q=C2763268462-LPCLOUD
33 GWELD_User_Guide_V32.pdf https://lpdaac.usgs.gov/documents/2086/GWELD_User_Guide_V32.pdf
33 GWELD_ATBD_V32.pdf https://lpdaac.usgs.gov/documents/2085/GWELD_ATBD_V32.pdf
5 https://earthdata.nasa.gov/esds/competitive-programs/measures/global-long-term-multi-sensor-weld
21 contents.html https://opendap.cr.usgs.gov/opendap/hyrax/GWELD1/MEASURES/GWELDMO.032/contents.html
5 https://www.earthdata.nasa.gov/centers/lp-daac
21 GWELDMO.032 https://doi.org/10.5067/MEaSUREs/GWELD/GWELDMO.032
5 https://search.earthdata.nasa.gov/search/granules?p=C1000000142-LARC_ASDC
21 https://doi.org/10.5067/ASDCDAAC/NARSTO/0004
5 https://asdc.larc.nasa.gov/citing-data
5 https://asdc.larc.nasa.gov/project/NARSTO
5 https://www.narsto.org/
5 https://cdiac.ess-dive.lbl.gov/programs/NARSTO/
33 narsto_sos99nash_wind_profiler_data.pdf https://asdc.larc.nasa.gov/documents/narsto/guide/narsto_sos99nash_wind_profiler_data.pdf
57 Data_and_Metadata_Reporting_Guidance_Documents.zip https://asdc.larc.nasa.gov/documents/gewex-rfa/data/Data_and_Metadata_Reporting_Guidance_Documents.zip
33 Intro_1_2.pdf https://asdc.larc.nasa.gov/documents/narsto/readme/Intro_1_2.pdf
33 Section_3.pdf https://asdc.larc.nasa.gov/documents/narsto/readme/Section_3.pdf
33 Section_4.pdf https://asdc.larc.nasa.gov/documents/narsto/readme/Section_4.pdf
33 Sect_5_6.pdf https://asdc.larc.nasa.gov/documents/narsto/readme/Sect_5_6.pdf
33 narsto_texas_final_report.pdf https://asdc.larc.nasa.gov/documents/narsto/narsto_texas_final_report.pdf
5 https://asdc.larc.nasa.gov/data/NARSTO/SOS99NASH_WIND_PROFILER_DATA_1/
5 GWELDMO.032 https://e4ftl01.cr.usgs.gov/MEASURES/GWELDMO.032/
5 https://search.earthdata.nasa.gov/search?q=C2763268462-LPCLOUD
5 GWELDMO.032 https://doi.org/10.5067/MEaSUREs/GWELD/GWELDMO.032
33 GWELD_User_Guide_V32.pdf https://lpdaac.usgs.gov/documents/2086/GWELD_User_Guide_V32.pdf
5 https://earthdata.nasa.gov/esds/competitive-programs/measures/global-long-term-multi-sensor-weld
22 L57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2.1.jpg https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/GWELDMO.032/L57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2/L57.Globe.month07.2006.hh10vv04.h0v3.doy182to212.NBAR.v3.2.1.jpg
5 https://www.earthdata.nasa.gov/centers/lp-daac
21 contents.html https://opendap.cr.usgs.gov/opendap/hyrax/GWELD1/MEASURES/GWELDMO.032/contents.html
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2763268462-LPCLOUD.iso19115
33 GWELD_ATBD_V32.pdf https://lpdaac.usgs.gov/documents/2085/GWELD_ATBD_V32.pdf

Tags

  • earth-science-surface-radiative-properties-land-surface-reflectance
  • earth-science-land-use-land-cover-land-surface
  • earth-science-vegetation-biosphere-vegetation-index-normalized-difference-vegetation-index-ndvi

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