GFZ have at last produced another update of GIS Mass Loss, this time to October 2023.
The data includes mass loss by 8 drainage basins, which I have also grouped into 3 regions.
Some of the graphs attached have blank spaces where monthly data was not produced by the first GRACE satellites.
Total Mass Loss since early 2002 is 4,635 GT, about 220 GT a year.
Perhaps the most interesting feature is that Mass Loss in Drainage Basin 306 that fronts the southern half of Baffin Bay has basically stalled since late 2019. Until then Mass Loss was occurring at the highest rate of all the basins. We do not have SMB data from DMI by drainage basins, though they hope one day to be able to produce it. If we had it we would be able to get at least an idea if the stall in Mass Loss of that basin is due to increased SMB (i.e. snowfall) and / or reduced calving and melt of marine-terminating glaciers.
Meanwhile Mass Loss in basin 307 that fronts the Northern half of Baffin Bay and Basin 304 in SE Greenland continues unabated.
Overall, Mass Loss is higher in West Greenland.
ps: Processing GRACE-FO data is a complex business that chews up people and super-computer time. GFZ tells me that this year and next year they have funding to produce more frequent and more-up-to-date analyses. Let's also hope that DMI get the resources they need to develop their capabilities as well.