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rtables  contains input files for the radiation scheme.

run.ccb  is the model runs run script which will be submitted to the PBS job scheduler.  It calls oifs_run and loads all the module files and defines shell variable required for the runtime environment of the model.  Therefore the oifs-config.ccb.sh file is not needed in this case.

oifs_run  is a generic run script for the model.  It is possible to pass arguments to this script which is done by run.ccb.  At the end of the model experiment this script moves the model output to a specific output directory (which is numbered according to the OIFS_RUN variable).  Also command line grib tools are used to extract selected model fields into separate files. 

All settings and parameters which define the model experiments are set in namelists which need to be copied to fort.4.  We will explore here some of the values set in the namelists:

Code Block
UTSTEP=900.0
CUSTOP='h144'
CNMEXP="h7cc"

NFPLEV=137
NFPMAX=399

NFRPOS=24
NFRHIS=24

Part 2 – Perturbation Experiment