Antarctica Mass Variability Time Series Version 1 from JPL GRACE Mascon CRI Filtered

Antarctica Mass Variability Time Series Version 1 from JPL GRACE Mascon CRI Filtered
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DOI10.5067/TEMSC-ANTS1
Short NameANTARCTICA_MASS_TELLUS_GRACE_MASCON_CRI_TIME_SERIES_RL05_V1
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 RL05M.1 CRI Filtered Version 2, which can be found at https://podaac.jpl.nasa.gov/dataset/TELLUS_GRACE_MASCON_CRI_GRID_RL05_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.
Version1
Dataset TypeOPEN
MeasurementCryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance
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
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-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
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-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

ProjectMaking Earth Science Data Records for Use in Research Environments (MEaSUREs)
Data ProviderCreator: D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, M. M. Watkins
Release Place: JPL
Release Date: 2017-Mar-20
Resource: http://grace.jpl.nasa.gov/data/get-data/jpl_global_mascons/
Keyword(s)GRACE, Tellus, Mascon, water storage, ocean mass, land mass, water height, water mass, mass, land, ocean, gravity, pressure, ocean pressure, ocean bottom pressure
Persistent IDPODAAC-TEMSC-ANTS1
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
PO.DAAC DRIVEhttps://podaac-tools.jpl.nasa.gov/drive/files/allData/tellus/L3/mascon/RL05/JPL/CRI/mass_variability_time_series
Format (Compression)NETCDF (NONE)
Read Software
Generic netCDF read software.https://podaac-tools.jpl.nasa.gov/drive/files/common/sw/generic_nc_readers/
Generic netCDF read software provided in IDL, MATLAB, Python, and R.
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 Near-Real-Time Orbit Datahttp://www.csr.utexas.edu/grace/ground/
This page is maintained by the Center for Space Research at the University of Texas at Austin.
GRACE Historical and Current Mission Statushttp://www.csr.utexas.edu/grace/operations/mission_status/
GRACE Mission status is updated weekly and maintained by the Center for Space Research at the University of Texas at Austin.
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. For all other inquiries, please visit https://podaac.jpl.nasa.gov/forum/.
GRACE Data Availability Timetablehttps://podaac-tools.jpl.nasa.gov/drive/files/allData/tellus/L3/docs/GraceMonths.html
Contains a timetable of data availability from GRACE for each month starting from the beginning of the GRACE mission.
README.txt file for JPL RL05M.1 GRACE Mascon Solutionhttps://podaac-tools.jpl.nasa.gov/drive/files/allData/tellus/L3/mascon/RL05/JPL/README.txt
README File containing list of changes from Version 1 to Version 2.
FAQs
Frequently Asked Questionshttp://grace.jpl.nasa.gov/about/faq/
GRACE Tellus Project page for Frequently Asked Questions.
Citation D. N. Wiese, D.-N. Yuan, C. Boening, F. W. Landerer, M. M. Watkins. 2017. Antarctica Mass Variability Time Series Version 1 from JPL GRACE Mascon CRI Filtered. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/TEMSC-ANTS1.

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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.