CSR TELLUS GRACE Level-3 Monthly Ocean Bottom Pressure Anomaly Release 6.0 version 02 in netCDF/ASCII/GeoTIFF Formats

CSR TELLUS GRACE Level-3 Monthly Ocean Bottom Pressure Anomaly Release 6.0 version 02 in netCDF/ASCII/GeoTIFF Formats
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DOI10.5067/TEOCN-3AC62
Short NameTELLUS_GRAC_L3_CSR_RL06_OCN_v02
DescriptionThe CSR monthly ocean bottom pressure grids are given as equivalent water thickness changes derived from GRACE time-variable gravity observations during the specified timespan in ASCII/netCDF/GeoTIFF formats. The Equivalent water thickness represent 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). The Level-2 GAD product has been added back, a glacial isostatic adjustment (GIA) correction has been applied, and standard corrections for geocenter (degree-1) and C20 (degree-20) are incorporated. Post-processing filters (i.e., de-striping and spatial smoothing) have been applied to reduce correlated errors. For the RL06 version, all GRACE products in the ASCII format have adopted the YAML encoding header, which is in full compliance with the PO.DAAC metadata best practices. Version 02 (v02) of the ocean bottom pressure data has resolved a processing inconsistency issue in the version 01 files for both GRACE and GRACE-FO. This inconsistency resulted in erroneous leakage corrections, in particular near GIA-affected regions. Interior ocean data points (i.e., more than 1000 km away from coastlines) were minimally affected.
VersionRL06 v02
Dataset TypeOPEN
MeasurementSOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITY
OCEANS > OCEAN PRESSURE > WATER PRESSURE > OCEAN BOTTOM PRESSURE
Processing Level3
CoverageRegion: Global
Northernmost Latitude: 89.5 degrees
Southernmost Latitude: -89.5 degrees
Westernmost Longitude: 0 degrees
Easternmost Longitude: 360 degrees
Time Span: 2002-Apr-04 to 2017-Oct-25
ResolutionSpatial Resolution: 1 degrees (Latitude) x 1 degrees (Longitude)
Temporal Resolution: 1 Month
ProjectionType: Gridded
Detail:
Ellipsoid: WGS 84
Latency hours
Platform/Sensor
GRACE
Platform
Name: Gravity Recovery and Climate Experiment (GRACE)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE SCA
SENSOR
Name: Star Camera Assembly (GRACE SCA)
Swath Width: - km
Description: The two star cameras mounted close to the accelerometer on each satellite provide the precise attitude references for the satellites when making science measurements.

GRACE
Platform
Name: Gravity Recovery and Climate Experiment (GRACE)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE KBR
SENSOR
Name: GRACE K-Band Ranging System (GRACE KBR)
Swath Width: -1 km
Description: This instrument precisely measures the changes in the separation between the two GRACE satellites using phase tracking of K- and Ka-band signals sent between the two satellites

GRACE
Platform
Name: Gravity Recovery and Climate Experiment (GRACE)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE ACC
SENSOR
Name: GRACE SuperSTAR Accelerometer (GRACE ACC)
Swath Width: -1 km
Description: The accelerometer, located at the center of mass of each satellite, measures all non-gravitational forces acting on each satellite. These forces include air drag, solar radiation pressure, and attitude control activator operation.

ProjectMaking Earth Science Data Records for Use in Research Environments (MEaSUREs)
Data ProviderCreator: Felix Landerer
Release Place: JPL
Release Date: 2019-Oct-30
Resource: https://grace.jpl.nasa.gov/data/get-data/monthly-mass-grids-ocean/
Keyword(s)TELLUS, GRACE, OBP, LWET, Gravity, CSR, RL06v02, Ocean
Persistent IDPODAAC-TEOCN-3AC62
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation Felix Landerer. 2019. CSR TELLUS GRACE Level-3 Monthly Ocean Bottom Pressure Anomaly Release 6.0 version 02 in netCDF/ASCII/GeoTIFF Formats. Ver. RL06 v02. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/TEOCN-3AC62.

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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.