All model's have been regridded to NSIDC's polar stereographic projection.
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We have regridded all model output to a common grid, but applied no further post processing.
Some forecasts are bias corrected before we acquired them.
More on forecast source and model information,
our methods, and
*Contains modified Copernicus Climate Change Service information 2018. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains