Comments:         chen-at-csr.utexas.edu   Web Curator: Jianli Chen   Last updated: Dec. 28, 2011

Data Resources (Updated: Dec. 28, 2011) Parameters Sources Information Global Mass Change From GRACE (Release 04) GRACE (Gravity Recovery And Climate Experiment) Time Span: Apr. 2002 - Sept. 2011 Sampling Rate: Monthly, 109 Solutions CSR RL04 (GSM only, GAC not restored) Grid: 1 x 1 Degree Grid Decorrelation + 500 km Gaussian Smoothing Truncation at degree 60 Global Mass Change From GRACE (Release 01) GRACE (Gravity Recovery And Climate Experiment) Time Span: Apr/May 2002 - Jul 2004 Sampling Rate: Monthly, 22 Solutions CSR RL01 Unconstrained Grid: 1 x 1 Degree Grid Gaussian Smoothing: 600, 800, 1000 km Truncation at degree 60, No C20 GLDAS Monthly Water Storage (New!) NASA Global Land Data Assimilation System Time Span: Jan. 1979 - Aug. 2011 Sampling Rate: Monthly Grid: 1 x 1 Degree Units: mm of water height GLDAS Daily Water Storage NASA Global Land Data Assimilation System Time Span: Jan. 1, 2002 - May 31, 2007 Sampling Rate: Daily Grid: 1 x 1 Degree Units: mm of water height NOAA LadWorld Monthly Water Storage NOAA LadWorld (Fraser) Time Span: Jan., 1980 - Nov., 2006 Sampling Rate: Monthly Grid: 1 x 1 Degree Units: mm of water height CPC Monthly Water Storage CPC Land Data Assimilation System Time Span: Jan. 1948 - Dec. 2007 Sampling Rate: Monthly Grid: 1 x 1 Degree NCEP Daily Water Storage NCEP/NCAR Reanalysis Soil Moisture and Snow Time Span: Jan. 1979 - Dec. 2004 Sampling Rate: Daily Grid: Gaussian (T62), ~1.904 x 1.875 Degree ECMWF Daily Water Storage ECMWF Reanalysis Soil Moisture and Snow Time Span: 1979 - 1993 Sampling Rate: Daily Grid: 2.5 x 2.5 Degree Water Storage NCEP/NCAR Climate Data Assimilation Syatem I (CDAS-1) soil moisture and snow Time Span: 1993 - 1998 Sampling Rate: Monthly Grid: 1 x 1 degree Water Flux NCEP/NCAR Climate Data Assimilation Syatem I (CDAS-1) soil moisture and snow Time Span: 1993 - 1998 Sampling Rate: Monthly Grid: 1 x 1 degree Global grids of loading derived from the GLDAS water storage model (from Dr. Tonie M. van Dam). GFZ Operational AAM (plus OAM & HAM) Products! Daily hydrological excitations of polar motion and LOD from NCEP/NCAR Reanalysis (1948-2008)! Water storage and flux changes of global major basins !!! (Underconstruction) List of global major artificial reservoirs ! (by courtesy of Dr. Ben F. Chao)