CSR TELLUS GRACE-FO Level-3 Monthly Ocean Bottom Pressure Anomaly Release 6.3 version 04

(TELLUS_GRFO_L3_CSR_RL06.3_OCN_v04)
VersionRL06.3v04
Processing Level3
Start/Stop Date2018-May-22 to Present
Short NameTELLUS_GRFO_L3_CSR_RL06.3_OCN_v04
DescriptionThis data set is produced by the Center for Space Research (CSR) GRACE-FO (Gravity Recovery and Climate Experiment Follow-On) program and derives the ocean bottom pressure (OBP) anomaly given as equivalent water thickness. These monthly grids are derived from GRACE-FO time-variable gravity observations during the specified timespan, and relative to the specified time-mean reference period. This quantity represents sea floor pressure changes due to the integral effect of ocean and atmosphere processes, including global mean ocean bottom pressure changes (mean ocean mass and mean atmosphere mass over the global oceans). 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. Data grids are provided in ASCII/netCDF/GeoTIFF formats.

GRACE-FO was launched on 22 May 2018, and extends the original GRACE mission (2002 – 2017) and expands its legacy of scientific achievements in tracking earth surface mass changes. Version 04 (v04) of the ocean bottom pressure 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. Additionally, this release 06.3 is an updated version of the Level 3 products in coordination with the release of the analogous Level 2 products used to generate them. It differs from RL06.1 only in the Level-1B accelerometer transplant data that is used for the GF2 (GRACE-FO 2) satellite; see respective L-2 data descriptions. RL06.3 uses the ACX2-L1B data products. All GRACE-FO RL06.3 Level-3 fields are fully compatible with the GRACE RL06 data.
DOI10.5067/GFOCN-3C634
MeasurementOCEANS > OCEAN PRESSURE > WATER PRESSURE
Platform/Sensor
GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: 94.5 minutes
Inclination Angle: 89 degrees
/
GRACE-FO MWI
SENSOR
Name: GRACE-FO Microwave Instrument (GRACE-FO MWI)
Swath Width: 24, 32 ghz
Description: Microwave frequencies the instrument operates at.

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: 94.5 minutes
Inclination Angle: 89 degrees
/
GRACE-FO LRI
SENSOR
Name: GRACE-FO Laser Ranging Interferometer (GRACE-FO LRI)

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: 94.5 minutes
Inclination Angle: 89 degrees
/
GRACE-FO ACC
SENSOR
Name: GRACE-FO SuperSTAR Accelerometer (GRACE-FO ACC)

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: 94.5 minutes
Inclination Angle: 89 degrees
/
GRACE-FO SCA
SENSOR
Name: GRACE-FO Star Camera Assembly (GRACE-FO SCA)

ProjectGravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Data ProviderPublisher: PO.DAAC
Creator: Felix Landerer
Release Place: PO.DAAC
Release Date: 2024-Oct-01

FormatnetCDF-4
Keyword(s)TELLUS, GRACE-FO, OBP, LWET, Gravity, CSR, RL06.3, OCEAN, OCEAN MASS, Sea Level
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution
Spatial Resolution: 1 Decimal Degrees x 1 Decimal Degrees
Temporal Resolution: Monthly - < Annual
 
Coverage
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-Sep-01
 
Projection
Projection Type: Gridded
Ellipsoid: WGS 84
 
NameLong NameUnit
latlatitudedegrees_north
lat_boundslatitude boundariesdegrees_north
lonlongitudedegrees_east
lon_boundslongitude boundariesdegrees_east
lwe_thicknessLiquid_Water_Equivalent_Thicknessm
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
uncertaintyuncertaintym
GENERAL DOCUMENTATION
USER'S GUIDE
DATA CITATION POLICY
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. 2024. CSR TELLUS GRACE-FO Level-3 Monthly Ocean Bottom Pressure Anomaly Release 6.3 version 04. Ver. RL06.3v04. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GFOCN-3C634

Download Citation
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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.

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