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1980-present time series of assimilated land ice surface diagnostics produced by NASA's Global Modeling and Assimilation Office (GMAO). The dataset provides 3-hourly time-averaged values for variables like fractional glaciated snow cover, snow mass, and snow depth, starting from 01:30 UTC. It is part of the MERRA-2 global atmospheric reanalysis and is updated with a latency of approximately three weeks after the end of each month.
License is 'other-license-specified'; users should check the specific terms. Reprocessed data filenames differ from original files, and users are advised to check linked documentation.