GRACE/GRACE-FO Level-4 Monthly Gravitational-Rotational-Deformation version 01 from NASA MEaSUREs HOMaGE
(HOMAGE_GGFO_MSC_CRI_SALGRD_v01)| Version | 1.0 |
| Processing Level | 4 |
| Start/Stop Date | 2002-Apr-16 to Present |
| Short Name | HOMAGE_GGFO_MSC_CRI_SALGRD_v01 |
| Description | This data set contains global gridded, monthly solutions of the sea level equation (gravitational-rotational-deformational GRD components) using surface mass data from the GRACE and GRACE Follow-On (G/GFO) satellite missions, beginning in April 2002. The sea level components are provided for separate land domains to allow users the local contributions from various ice melt sources (e.g., Greenland, Antarctica, mountain glaciers), as well as non-glaciated land regions. The full record for each component is given in a separate netCDF file, and includes gridded data of radial deformation, geoid height and relative sea level, as well as timeseries of global mean barystatic sea level. The data are frequently updated as new monthly observations are acquired by the GFO mission. These data are based on the gridded JPL CRI-filtered mascons (e.g., https://doi.org/10.5067/TEMSC-3JC634 ), and thus inherit all processing steps from those fields. For more information on GRD definitions and related terminology, please refer to Gregory et al., 2019 (https://doi.org/10.1007/s10712-019-09525-z). |
| DOI | 10.5067/HMOGD-4JM01 |
| Measurement | CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SEA LEVEL RISE OCEANS > SEA SURFACE TOPOGRAPHY > SEA LEVEL SOLID EARTH > GEODETICS > GEOID CHARACTERISTICS |
| Platform/Sensor | GRACE-FO / Platform Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) Orbit Period: 94.5 minutes Inclination Angle: 89.0 degrees GRACE-FO MWI SENSOR Name: GRACE-FO Microwave Instrument (GRACE-FO MWI) GRACE / Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: 94.5 minutes GRACE INTERFEROMETER SENSOR Name: GRACE INTERFEROMETER (GRACE INTERFEROMETER) |
| Project | MEaSUREs HOMaGE: Heat and Ocean Mass from Gravity ESDR (MEaSUREs/HOMaGE) |
| Data Provider | Publisher: PO.DAAC Creator: Felix Landerer, David Wiese, Munish Sikka Release Place: PO.DAAC Release Date: 2025-Sep-01 |
| Format | netCDF-4 |
| Keyword(s) | GRACE-FO, HOMAGE, Sea Level, Ocean Mass, Gravitational-Rotational-Deformation |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Temporal Resolution: Monthly - < Annual Coverage Region: GLOBAL North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2002-Apr-16 to Present Projection Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
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| OPENDAP DATA | |
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| This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command line interface. The URL redirects to the data-subscriber home page with instructions for utilizing the tool | |
| DIRECT S3-ACCESS | |
| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/HOMAGE_GGFO_MSC_CRI_SALGRD_v01 | |
| podaac-ops-cumulus-public/HOMAGE_GGFO_MSC_CRI_SALGRD_v01 | |
AWS S3 Credentials | |
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| TOOLS AND SERVICES | |
| This dataset can be accessed with the Harmony subsetter service to subset and regrid data on-the-fly. Several subsetting options are available such as spatial, variable, temporal, and vertical level. The URL redirects to a general page with information about utilizing the service. An example query: https://harmony.earthdata.nasa.gov/C3378626164-POCLOUD/ogc-api-coverages/1.0.0/collections/all/coverage/rangeset?subset=lat(minLat:maxLat)&subset=lon(minLon:maxLon)&subset=time(startTime:stopTime)&format=application%2Fx-netcdf4 | |
| Name | Long Name | Unit |
|---|---|---|
| all_land | GRD_Source_Mask | |
| Barystatic | Global Mean Barystatic Sea Level | meter |
| Geoid | Geoid height | meters |
| land_mask | Land_Mask | |
| lat | latitude | degrees_north |
| lat_bounds | latitude boundaries | degrees_north |
| LOD | length-of-day | seconds |
| lon | longitude | degrees_east |
| lon_bounds | longitude boundaries | degrees_east |
| Rad | Radial deformation | meters |
| RSL | Relative Sea Level | meters |
| time | time | days since 2002-01-01T00:00:00Z |
| time_bounds | time boundaries | days since 2002-01-01T00:00:00Z |
| DATA CITATION GUIDELINES | |
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| GENERAL DOCUMENTATION | |
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| PUBLICATIONS | |
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| READ-ME | |
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
| Citation | Felix Landerer, David Wiese, Munish Sikka. 2025. GRACE/GRACE-FO Level-4 Monthly Gravitational-Rotational-Deformation version 01 from NASA MEaSUREs HOMaGE. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/HMOGD-4JM01
For more information see Data Citations and Acknowledgments.
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