Monthly mass change fields from GRACE CSR RL05 GSM solutions.

Time Span: Apr. 2002 - Jun. 2017
Sampling Rate: Monthly, 163 Solutions
Grids: 1 x 1 Degree (180x360 grids, -89.5 to 89.5 degree latitude, and 0.5 to 359.5 degree longitude)
Decorrelation + 500 or 300 km Gaussian Smoothing
Truncation at degree 60 
C20 coefficients are replaced by SLR estimates, and seasonal geocenter variations from Swenson et al. (2008) are included.
The reference mean pole correction suggested by Wahr et al. (2015) is also included.

Name Conventions:
dm_gsm_r05_300p4m6_j2gc_163.mat   - P4M6 Decorrelation + 300km Gaussian smoothing

dm_gsm_r05_500p4m6_j2gc_163.mat   - P4M6 Decorrelation + 500km Gaussian smoothing

The time steps (in year) are given in the "t5_163.mat" file, and the units for mass change are in cm of equivalent water height change.

Questions: Dr. Jianli Chen (chen@csr.utexas.edu) at the Center for Space Research, University of Texas at Austin