GRACE-FO Level-2 Monthly Geopotential Spherical Harmonics JPL Release 6.3 (RL06.3)

Description

FOR EXPERT USE ONLY. This dataset contains estimates of the total month-by-month geopotential of the Earth, derived from the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission measurements, produced by the NASA Jet Propulsion Laboratory (JPL). The data are provided as spherical harmonic coefficients, averaged over approximately a month, and available from 2018 onward. These coefficients are derived from the Microwave Instrument (MWI) measured intersatellite range changes between the twin spacecraft of the GRACE-FO (Gravity Recovery and Climate Experiment Follow-On) mission. The GRACE-FO mission, a joint partnership between NASA and the German Research Centre for Geosciences (GFZ), launched on 22 May 2018. It uses twin satellites to accurately map variations in the Earth's gravity field and surface mass distribution. It is designed as a successor to the Gravity Recovery and Climate Experiment (GRACE) mission.

This GRACE-FO RL06.3 data is an updated version of the GRACE-FO RL06.1 Level-2 data products. RL06.3 differs from RL06.1 only in the Level-1B accelerometer transplant data that is used for the GF2 satellite: Level-2 RL06.3 uses ACH1B RL04 that is contained within the ACX2 Level-1 bundle, which replaces ACH1B RL04 contained within the ACX Level-1 bundle that was used for Level-2 RL06.1 (note: ACX2-L1B is only applicable for 01/2023 onwards in wide-pointing operational mode; from 6/2018 through 12/2022, RL06.1 and RL06.3 GRACE-FO data are identical and based on ACX; ACX2 is not available for 03/2023-06/2023 as the satellites were not in wide-pointing mode during that period). All GRACE-FO RL06.3 Level-2 products are fully compatible with the GRACE RL06 level-2 fields. Refer to the mission page for more information.

Resources

Name Format Description Link
21 PO.DAAC's Project Page for GRACE-FO https://podaac.jpl.nasa.gov/GRACE-FO
33 Level-2 Gravity Field Product User Handbook https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/gracefo/open/docs/GRACE-FO_L2_UserHandbook.pdf
33 GRACE-FO JPL Level-2 Processing Standards Document https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/gracefo/open/docs/GRACE-FO_L2-JPL_ProcStds_v1.0.pdf
21 GRACE-FO Project Website (external to PO.DAAC) https://gracefo.jpl.nasa.gov/
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/GRACEFO_L2_JPL_MONTHLY_0061.jpg
21 Page for all GRACE-FO Documentation and Technical Notes https://podaac.jpl.nasa.gov/gravity/gracefo-documentation
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 Technical Note (TN) - 14 https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/gracefo/open/docs/TN-14_C30_C20_GSFC_SLR.txt
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FGFL20-MJ063
33 GRACE-FO JPL Release Notes https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/gracefo/open/docs/GRACE-FO_L2-ReleaseNotes_JPL_RL06.3.pdf
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C3059700062-POCLOUD
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C3059700062-POCLOUD
21 Technical Note (TN) - 13 https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/gracefo/open/docs/TN-13_GEOC_JPL_RL0601.txt

Tags

  • gravity-gravitational-field
  • solid-earth
  • earth-science

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