JPL GRACE and GRACE-FO Mascon Ocean, Ice, and Hydrology Equivalent Water Height JPL Release 06.1 Version 03
(TELLUS_GRAC-GRFO_MASCON_GRID_RL06.1_V3)| Version | RL06.1Mv03 |
| Processing Level | 3 |
| Start/Stop Date | 2002-Apr-04 to Present |
| Short Name | TELLUS_GRAC-GRFO_MASCON_GRID_RL06.1_V3 |
| Description | This dataset contains gridded monthly global water storage/height anomalies relative to a time-mean, derived from GRACE and GRACE-FO and processed at JPL using the Mascon approach (RL06.1Mv03). These data are provided in a single data file in netCDF format, and can be used for analysis for ocean, ice, and hydrology phenomena. The water storage/height anomalies are given in equivalent water thickness units (cm). The solution provided here is derived from solving for monthly gravity field variations in terms of geolocated spherical cap mass concentration functions, rather than global spherical harmonic coefficients. Additionally, realistic geophysical information is introduced during the solution inversion to intrinsically remove correlated error. Thus, these Mascon grids do not need to be destriped or smoothed, like traditional spherical harmonic gravity solutions. The complete Mascon solution consists of 4,551 relatively independent estimates of surface mass change that have been derived using an equal-area 3-degree grid of individual mascons. It should be noted that this dataset does not correct for leakage errors across coastlines; it is therefore recommended only for users who want to apply their own algorithm to separate between land and ocean mass very near coastlines. This RL06.1Mv03 is an updated version of the previous Tellus JPL Mascon RL06Mv02 (DOI, 10.5067/TEMSC-3JC62). RL06.1Mv03 differs from RL06Mv02 only in the Level-1B accelerometer transplant data that is used for the GF2 (GRACE-FO 2) satellite; RL06.1Mv03 uses the ACH data product. For more information, please visit https://grace.jpl.nasa.gov/data/get-data/jpl_global_mascons/. For a detailed description on the Mascon solution, including the mathematical derivation, implementation of geophysical constraints, and solution validation, please see Watkins et al., 2015, doi: 10.1002/2014JB011547. This product is intended for expert use only; other users are encouraged to use the CRI-filtered Mascon dataset, which is available here: https://podaac.jpl.nasa.gov/dataset/TELLUS_GRAC-GRFO_MASCON_GRID_RL06.1_V3 |
| DOI | 10.5067/TEMSC-3MJ63 |
| Measurement | SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITY ANOMALIES OCEANS > SEA SURFACE TOPOGRAPHY > SEA LEVEL CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SEA LEVEL RISE |
| Platform/Sensor | GRACE-FO / Platform Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) Orbit Period: -1.0 minutes Inclination Angle: 89.0 degrees KBR SENSOR Name: K-Band Ranging system (KBR) Swath Width: -1.0 kilometers Description: K-Band Ranging System uses K and Ka-band to measure the separation change between the two satellites. GRACE / Platform Name: Gravity Recovery and Climate Experiment (GRACE) Orbit Period: -1.0 minutes Inclination Angle: 89.0 degrees KBR SENSOR Name: K-Band Ranging system (KBR) Swath Width: -1.0 kilometers Description: K-Band Ranging System uses K and Ka-band to measure the separation change between the two satellites. |
| Project | Gravity Recovery and Climate Experiment (GRACE) |
| Project | Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) |
| Data Provider | Publisher: JPL/Tellus Creator: D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, M. M. Watkins Release Place: JPL/PO.DAAC Release Date: 2023-Jan-25 Resource: https://grace.jpl.nasa.gov/data/get-data/jpl_global_mascons/ |
| Format | netCDF-4 |
| Keyword(s) | GRACE, Tellus, mascon, water storage, ocean mass, land mass, water height, water mass, GRACE-FO, RL06.1Mv03, ocean pressure, ocean bottom pressure, RL06.1, sea level, Gravity |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 0.5 Decimal Degrees x 0.5 Decimal Degrees 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-04 to Present Granule Time Span: 2002-Apr-16 to 2023-Mar-16 Projection Projection Type: Equal Area Spherical Lat-Lon Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
| Browse Granule Listing | |
| LAND_MASK.CRI File | |
| PLACEMENT file | |
| SCALE_FACTOR File | |
| Search Granules | |
| DIRECT S3-ACCESS | |
| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/TELLUS_GRAC-GRFO_MASCON_GRID_RL06.1_V3/ | |
| podaac-ops-cumulus-public/TELLUS_GRAC-GRFO_MASCON_GRID_RL06.1_V3/ | |
AWS S3 Credentials | |
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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 | D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, M. M. Watkins. 2023. JPL GRACE and GRACE-FO Mascon Ocean, Ice, and Hydrology Equivalent Water Height JPL RL06.1 Version 03. Ver. RL06.1Mv03. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/TEMSC-3MJ63
For more information see Data Citations and Acknowledgments.
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| Journal Reference | Watkins, M. M., D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer. 2015. Improved methods for observing Earth's time variable mass distribution with GRACE, JGR Solid Earth, 120, 4. 10.1002/2014JB011547 |
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