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For every 6-hour period the IFS suite will create one gridpoint and one spectral forcing file from ERA-Interim analyses at T255L60 reduced linear Gaussian horizontal grid. It is essential that the forcing files have the same horizontal grid and vertical levels as the OpenIFS experiment.
Forcing File Examples
Example for a spectral and a gridpoint forcing file are available for download from http://download.ecmwf.int/test-data/openifs/nudging/examples/ (no login required for access)
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