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  • OIFS_CYCLE - describes the model cycle (e.g. 48r1) for which this configuration file can be used.
  • OIFS_DATA_DIR - describes the location of climatological input files that are required to run OpenIFS. These have been installed on the ECMWF hpc2020 in a central and accessible location under /perm/openifs/oifs_data and the information is organised by model cycle. 
Note

If you do not have access to the ECMWF hpc2020 file system, or if you wish to install the climatological input files in a local directory of your choice, then you can download the required data from the OpenIFS anonymous ftp server: https://myftp.ecmwf.int/files/public/openifs/ifsdata/48r1/

As a minimum you will require the packages ifsdata_rtables_48r1.tgz, ifsdata_climatology_48r1.tgz, and the files required for your selected horizontal grid resolution, which in the case of our example is ifsdata_48r1_climate.v020_255.tgz.

Download and extract these files to your chosen location, the filepath of which should then be set to variable OIFS_DATA_DIR. 

The required global environment variables, described above, are defined in the Platform configuration file, which needs to be modified for your local OpenIFS installation. 

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