CSR TELLUS GRACE-FO Level-3 Monthly Land Water-Equivalent-Thickness Surface Mass Anomaly Release 6.2 version 04

Processing Level3
Start/Stop Date2018-May-22 to Present
Short NameTELLUS_GRFO_L3_CSR_RL06.2_LND_v04
DescriptionThe TELLUS_GRFO_L3_CSR_RL06.2_LND_v04 dataset produced by the the Center for Space Research (CSR) GRACE-FO program derives the terrestrial water storage anomaly using the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) satellite data. GRACE-FO was launched on 22 May 2018, and extends the original GRACE mission (2002 โ€“ 2017) and expands its legacy of scientific achievements in tracking earth surface mass changes.

The RL06.2 v04 monthly land mass grids contain water mass anomalies given as equivalent water thickness derived from GRACE-FO time-variable gravity observations during the specified timespan, and relative to the specified time-mean reference period. The Equivalent water thickness represents the total terrestrial water storage anomalies from soil moisture, snow, surface water (incl. rivers, lakes, reservoirs etc.), as well as groundwater and aquifers. A glacial isostatic adjustment (GIA) correction has been applied, and standard corrections for geocenter (degree-1), C20 (degree-20) and C30 (degree-30) are incorporated. Post-processing filters have been applied to reduce correlated errors.

Version 04 (v04) of the terrestrial water storage data uses updated and consistent C20 and Geocenter corrections (i.e., Technical Notes TN-14 and TN-13), as well as an ellipsoidal correction to account for the non-spherical shape of the Earth when mapping gravity anomalies to surface mass change. This RL06.2 is an updated release version of the previous RL06.1. The difference is only in the handling of GPS data set during Level-2 processing. GPS handling for RL06.2 was re-assessed due to steady degradation in low degrees during late 2022 and 2023 in RL06.1. Data grids are provided in ASCII/netCDF/GeoTIFF formats. For the RL06 version and beyond, all GRACE products in ASCII format have adopted the YAML encoding header, which is in full compliance with the PO.DAAC metadata best practices.
ProjectGravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Data ProviderPublisher: PO.DAAC
Creator: Felix Landerer
Release Place: JPL
Release Date: 2023-Oct-02

Keyword(s)TELLUS, GRACE-FO, LWET, Gravity, CSR, RL06.2, Surface Mass, TERRESTRIAL WATER STORAGE, Ground Water
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Spatial Resolution: 1 Decimal Degrees x 1 Decimal Degrees
Temporal Resolution: Monthly - < Annual
Region: GLOBAL
North Bounding Coordinate: 89.5 degrees
South Bounding Coordinate: -89.5 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2018-May-22 to Present
Granule Time Span: 2018-Jun-01 to 2024-Apr-01
Projection Type: Gridded
Ellipsoid: WGS 84
NameLong NameUnit
lat_boundslatitude boundariesdegrees_north
lon_boundslongitude boundariesdegrees_east
timetimedays since 2002-01-01T00:00:00
time_boundstime bounds for each time value, i.e. the first day and last day included in the monthly solutiondays since 2002-01-01T00:00:00
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. 2023. CSR TELLUS GRACE-FO Level-3 Monthly Land Water-Equivalent-Thickness Surface Mass Anomaly Release 6.2 version 04. Ver. RL06.2v04. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GFLND-3C624

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For more information see Data Citations and Acknowledgments.

Journal Reference Landerer F. W. and S. C. Swenson, Accuracy of scaled GRACE terrestrial water storage estimates. Water Resources Research, Vol 48, W04531, 11 PP, doi:10.1029/2011WR011453, 2012.