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Forcing files are generated using IFS CY43R3 experiment h7z9. The IFS experiment is set up for nudged configuration and the inigroup process family will extract ERA-Interim analyses from MARS and generate forcing files.  There is no need to run the model process family, the suite can be aborted after inigroup has completed. 

In prepIFS select the Select start date and run length in order to produce forcing files. Adjust This is done by adjusting variables INIBEGINDATE, INIENDDATE and INITIME to all reflect the same start date (first day of the month), e.g. 2013070100.

FCLENGTH should be set to 744 for one month or to 1488 for two months of forcing files to be created.For every 6-hour period one gridpoint and one spectral forcing file is created from ERA-I analyses, at T255L60 reduced linear Gaussian horizontal grid. 

A local copy of scripts branch damk_CY43R3_getrelax is required which . This branch (gen/getrelax) copies the forcing files from the /fws working directory to $SCRATCH/rlxml/. At present the directory rlxml must exist in the user's scratch space with 777 writing permissions.

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.

Model Code Changes

git repository branch feature/nudging