Antarctic Ice-Mass Change
Mass changes of the Antarctic Ice Sheet (AIS) observed by GRACE/GRACE-FO, relative to the long-term mean over the period 2002/04 through 2020/03, are provided in terms of the following two different Level-3 products: gridded ice-mass changes and basin-averaged ice-mass changes.
Although different algorithms are used for their generation, both data sets agree within the monthly GRACE uncertainty at basin level. Both products are corrected for Glacial Isostatic Adjustment (GIA) based on the ICE-6G_D (VM5a) model ( click here for more details ).
Further information on the AIS data products and the applied processing scheme is available here as technical note.