GRAMI · Annual NetCDF Archive
Browse annual GRAMI files
Download daily global GRAMI classifications by spatial-smoothing product and calendar year. Each file is a global NetCDF archive for one year.
Annual NetCDF files
Select a product and year to download a global daily NetCDF file. Files currently span 1940 through 2024.
Unsmoothed GRAMI
Native grid-cell classifications with no spatial smoothing applied.
Mesoscale-smoothed GRAMI
Spatially smoothed classifications designed to reduce local grid-cell noise while retaining regional-scale air-mass structure.
Synoptic-scale-smoothed GRAMI
Spatially smoothed classifications designed to emphasize broad air-mass patterns and large-scale atmospheric structure.
These direct archive downloads provide complete global daily files by year. Custom point, bounding-box, and time-subset downloads are planned for a later data-access interface.