Dataset Update Announcement: July and August data added to JPL GRACE Mascon Version 2 Datasets

Monday, January 9, 2017

The JPL GRACE Mascon Ocean, Ice and Hydrology Equivalent Water Height (hereafter, Mascon) Version 2 datasets have been recently updated with two additional months to its data time series, which brings the time series up to August 2016.
Access to the CRI dataset, valued for its Coastline Resolution Improvement (CRI) filter to separate land and ocean mass anomalies along coastlines, can be found here:
Expert users who wish to access the data without the implementation of the CRI filter can find the non-CRI dataset here:
Data will continue to be updated with a nominal 2 month latency.
As an artifact of the JPL Mascon Version 2 processing algorithm, the integration of the additional two months of data have resulted in very slight changes to data from all previous months. Users who wish to continue accessing data from previous months under previous Version 2 iterations can do so by visiting the following FTP location:
For more general information about the Mascon processing, usage guidance, and information on auxiliary files, please visit
For a detailed description on the Mascon algorithm, including the mathematical derivation, implementation of geophysical constraints, and solution validation, please see Watkins et al., 2015, DOI: 10.1002/2014JB011547 and Wiese et al., 2016, DOI: 10.1002/2016WR019344.