| References | |
|---|---|
| official web page | https://grace.jpl.nasa.gov https://podaac.jpl.nasa.gov |
| Climate Explorer URL | climexp.knmi.nl/select.cgi?grace_all |
| Climate Explorer filename | GRACEData/grace_all.nc |
| Variable | |
| name | lwe_thickness |
| units | cm |
| long_name | Liquid_Water_Equivalent_Thickness |
| standard_name | Liquid_Water_Equivalent_Thickness |
| Netcdf global metadata | |
| CDI | Climate Data Interface version 1.9.10 (mpimet.mpg.de/cdi) |
| Conventions | CF-1.6, ACDD-1.3, ISO 8601 |
| source | GRACE and GRACE-FO JPL RL06Mv2-CRI |
| institution | NASA/JPL |
| Metadata_Conventions | Unidata Dataset Discovery v1.0 |
| standard_name_vocabulary | NetCDF Climate and Forecast (CF) Metadata Convention-1.6 |
| title | JPL GRACE and GRACE-FO MASCON RL06Mv2 CRI |
| summary | Monthly gravity solutions from GRACE and GRACE-FO as determined from the JPL RL06Mv2 mascon solution - with CRI filter applied |
| keywords | Solid Earth, Geodetics/Gravity, Gravity, liquid_water_equivalent_thickness |
| keywords_vocabulary | NASA Global Change Master Directory (GCMD) Science Keywords |
| platform | GRACE and GRACE-FO |
| creator_name | David Wiese |
| creator_email | grace@podaac.jpl.nasa.gov |
| creator_url | grace.jpl.nasa.gov |
| creator_type | group |
| creator_institution | NASA/JPL |
| publisher_name | Physical Oceanography Distributed Active Archive Center |
| publisher_email | podaac@jpl.nasa.gov |
| publisher_url | podaac.jpl.nasa.gov |
| publisher_type | group |
| publisher_institution | NASA/JPL |
| project | NASA Gravity Recovery and Climate Experiment (GRACE) and NASA Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) |
| program | NASA Earth Science System Pathfinder and NASA Earth Systematic Missions Program |
| id | 10.5067/TEMSC-3JC62 |
| naming_authority | org.doi.dx |
| processing_level | 2 and 3 |
| acknowledgement | GRACE is a joint mission of NASA (USA) and DLR (Germany). GRACE-FO is a joint mission of NASA (USA) and the German Research Center for Geosciences (GFZ). Use the digital object identifier provided in the id attribute when citing this data. See podaac.jpl.nasa.gov/CitingPODAAC |
| license | science.nasa.gov/earth-science/earth-science-data/data-information-policy |
| product_version | v2.0 |
| time_epoch | 2002-01-01T00:00:00Z |
| time_coverage_start | 2002-04-16T00:00:00Z |
| time_coverage_end | 2021-07-16T23:59:59Z |
| geospatial_lat_min | -89.75 |
| geospatial_lat_max | 89.75 |
| geospatial_lat_units | degrees_north |
| geospatial_lat_resolution | 0.5 degree grid; however the native resolution of the data is 3-degree equal-area mascons |
| geospatial_lon_min | 0.25 |
| geospatial_lon_max | 359.75 |
| geospatial_lon_units | degrees_east |
| geospatial_lon_resolution | 0.5 degree grid; however the native resolution of the data is 3-degree equal-area mascons |
| time_mean_removed | 2004.000 to 2009.999 |
| months_missing | 2002-06;2002-07;2003-06;2011-01;2011-06;2012-05;2012-10;2013-03;2013-08;2013-09;2014-02;2014-07;2014-12;2015-06;2015-10;2015-11;2016-04;2016-09;2016-10;2017-02;2017-07;2017-08;2017-09;2017-10;2017-11;2017-12;2018-01;2018-02;2018-03;2018-04;2018-05;2018-08-2018-09 |
| postprocess_1 | OCEAN_ATMOSPHERE_DEALIAS_MODEL (GAD), MONTHLY_AVE, ADDED BACK TO OCEAN PIXELS ONLY |
| postprocess_2 | Water density used to convert to equivalent water height: 1000 kg/m^3 |
| postprocess_3 | Coastline Resolution Improvement (CRI) filter has been applied to separate land/ocean mass within mascons that span coastlines |
| GIA_removed | ICE6G-D; Peltier, W. R., D. F. Argus, and R. Drummond (2018) Comment on the paper by Purcell et al. 2016 entitled An assessment of ICE-6G_C (VM5a) glacial isostatic adjustment model, J. Geophys. Res. Solid Earth, 122. |
| geocenter_correction | We use a version of TN-13 based on the JPL mascons |
| C_20_substitution | TN-14; Loomis et al., 2019, Geophys. Res. Lett., doi:10.1029/2019GL082929 |
| C_30_substitution | TN-14; Loomis et al., 2019, Geophys. Res. Lett., doi:10.1029/2019GL082929. This substitution is made for all months after August 2016. |
| user_note_1 | The accelerometer on the GRACE-B spacecraft was turned off after August 2016. After this date, the accelerometer on GRACE-A was used to derive the non-gravitational accelerations acting on GRACE-B using a transplant procedure. This has led to a subsequent degradation in the quality of the gravity fields derived. The uncertainties in this file have been scaled to accomodate this degradation. |
| user_note_2 | The accelerometer on the GRACE-D spacecraft began performing sub-optimally after June 21, 2018. After this date, the accelerometer on GRACE-C is used to derive the non-gravitational accelerations acting on GRACE-D using a transplant procedure. The uncertainties in the file have been scaled to accomodate this degradation using the current best state of knowledge. |
| journal_reference | Watkins, M. M., D. N. Wiese, D.-N. Yuan, C. Boening, and F. W. Landerer (2015) Improved methods for observing Earth\'s time variable mass distribution with GRACE using spherical cap mascons, J. Geophys. Res., 120, doi:10.1002/2014JB011547. |
| CRI_filter_journal_reference | Wiese, D. N., F. W. Landerer, and M. M. Watkins (2016) Quantifying and reducing leakage errors in the JPL RL05M GRACE mascon solution, Water Resour. Res., 52, doi:10.1002/2016WR019344. |
| date_created | 2021-09-01T16:09:15Z |
| history | Mon Oct 04 10:12:02 2021: cdo mul grace_all_tmp1.nc scalefactor.nc grace_all.nc Mon Oct 04 10:11:50 2021: cdo settaxis,2002-04-15,0:00,1mon grace_all_tmp0.nc grace_all_tmp1.nc Mon Oct 4 10:11:39 2021: ncks -O -v lwe_thickness GRCTellus.JPL.200204_202107.GLO.RL06M.MSCNv02CRI.nc grace_all_tmp0.nc |
| NCO = netCDF Operators version 4.9.3 (Homepage = nco.sf.net, Code | http://github.com/nco/nco) |
| CDO | Climate Data Operators version 1.9.10 (mpimet.mpg.de/cdo) |