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The CPDN OpenIFS@Home uses slightly different terminology to what OpenIFS users might be used to.

OpenIFS@Home Ancillary Files

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This refers to all the input files that the OpenIFS model needs to run:

  • initial data to start a forecast (normally obtained from ECMWF);
  • ifsdata and climate files (downloaded from the OpenIFS ftp site);
  • model namelist (only parts of the OpenIFS namelist can be uploaded, see below)

These ancillary files are stored in a zipped format on the CPDN repository.

Experiment information is read from the initial files GRIB metadata upon upload to the OpenIFS@Home repository and used to set the experiment id, date/time of forecast etc.


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