Tellus Level-4 Antarctica Mass Anomaly Time Series from JPL GRACE/GRACE-FO Mascon CRI Filtered Release 06 version 02
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DOI10.5067/TEMSC-ATS62
Short NameANTARCTICA_MASS_TELLUS_MASCON_CRI_TIME_SERIES_RL06_V2
DescriptionThis dataset is a time series of mass variability averaged over all of Antarctica. It provides the ice mass changes of Antarctica over time. The mass variability are derived from JPL GRACE Mascon Ocean, Ice, and Hydrology Equivalent Water Height RL06Mv02 CRI Filtered Version 2, which can be found at https://podaac.jpl.nasa.gov/dataset/TELLUS_GRAC-GRFO_MASCON_CRI_GRID_RL06_V2. A more 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. The mass variability are provided as an ASCII table.
Version2
Dataset TypeOPEN
MeasurementCRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER MASS BALANCE/ICE SHEET MASS BALANCE > ICE MASS ANOMALY TIME SERIES
Processing Level4
CoverageRegion: Antarctica
Northernmost Latitude: -70 degrees
Southernmost Latitude: -90 degrees
Westernmost Longitude: 0 degrees
Easternmost Longitude: 360 degrees
Time Span: 2002-Apr-01 to Present
Granule Time Span: 2002-Apr-01 to 2020-May-31
ResolutionSpatial Resolution: 20 degrees (Latitude) x 360 degrees (Longitude)
Temporal Resolution: 1 Month
ProjectionType: N/A
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.

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO ACC
SENSOR
Name: GRACE-FO SuperSTAR Accelerometer (GRACE-FO 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.

GRACE-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO KBR
SENSOR
Name: GRACE-FO K-Band Ranging System (GRACE-FO 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-FO
Platform
Name: Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Orbit Period: -1 minutes
Inclination Angle: 89 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
GRACE-FO SCA
SENSOR
Name: GRACE-FO Star Camera Assembly (GRACE-FO SCA)
Swath Width: -1 km
Description: The SCA (Star Camera Assembly) consists of three temperature controlled CCD star cameras mounted to the accelerometer, along with the respective baffle assemblies. The STR delivers its video frames to the OBC, which then computes the attitude quaternions. The OBC also acts as the power and command/control interface to the STR. Once switched on and initialized, the STR proceeds with automatic coarse attitude acquisition and then on to fine attitude derivation.

ProjectGravity Recovery and Climate Experiment (GRACE)
Data ProviderCreator: D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, M. M. Watkins
Release Place: JPL
Release Date: 2020-Mar-18
Resource: http://grace.jpl.nasa.gov/data/get-data/jpl_global_mascons/
Keyword(s)GRACE, Tellus, Mascon, water storage, ocean mass, water height, water mass, mass, land, ocean, gravity, pressure, ocean pressure, ocean bottom pressure
Persistent IDPODAAC-TEMSC-ATS62
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Announcements
Grace Tellus Data Release Updateshttp://grace.jpl.nasa.gov/data/data-updates/
Grace Tellus Project site for announcing recent and historical updates regarding Tellus datasets.
Project Materials
Tellus Mascon Project Pagehttp://grace.jpl.nasa.gov/data/get-data/jpl_global_mascons/
Provides additional resources and information for the Global Mascon datasets.
GRACE Missionhttp://podaac.jpl.nasa.gov/GRACE
GRACE Mission Information Page
GRACE-FO Missionhttps://podaac.jpl.nasa.gov/GRACE-FO
GRACE Mission Information Page
Journal References
Wiese et al., 2016https://podaac-tools.jpl.nasa.gov/drive/files/allData/grace/docs/Wiese_2016_WRR.pdf
For derivations of the CRI filter and gain factors, along with a discussion of leakage errors, please see Wiese et al., 2016, doi:10.1002/2016WR019344.
Known Issues
GRACE Tellus Feedback Toolhttp://grace.jpl.nasa.gov/about/feedback/
GRACE Tellus Project web tool for entering user feedback. Users are advised to only use this tool when submitting data quality issues directly to the GRACE Tellus Project.
GRACE Data Availability Timetablehttps://podaac-tools.jpl.nasa.gov/drive/files/allData/tellus/L3/docs/GRACE_GRACE-FO_Months_RL06.pdf
GRACE monthly data integration range
FAQs
Frequently Asked Questionshttp://grace.jpl.nasa.gov/about/faq/
GRACE Tellus Project page for Frequently Asked Questions.
PO.DAAC Forum Pagehttps://podaac.jpl.nasa.gov/forum/viewforum.php?f=27
PO.DAAC Forum Page
Citation D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, M. M. Watkins. 2020. Tellus Level-4 Antarctica Mass Anomaly Time Series from JPL GRACE/GRACE-FO Mascon CRI Filtered Release 06 version 02. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/TEMSC-ATS62.

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For more information see Data Citations and Acknowledgments.

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, 10.1002/2014JB011547.