Download Australian Climate Ocean Model (AusCOM) Users Guide

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If users wants to restart a run (from a certain time point in the run history) for whatever
reason, they can simply rename the associated (exp).date_?? file to (exp).date and
submit the job, under one condition though: the associated restart files for all submodels and the coupler have to be there.
R-3. Getting All the Files into the Run Directory
This section puts in place all preprocessed auxiliary files, initial condition data files, and submodel and OASIS executables. Some configuration files that control run time execution will be
edited to reflect particular features of the experiment, and control over the to-be-performed run
segment. Run time configuration of ‘namelist’ files are also created for each of the sub-models.
R-3.1 Grids, Initial Condition, Executables and some Preprocessed Auxiliary Files
boundary_layer=gfdl
runoff_data=core
cold_start=1
#"gfdl" or "non-gfdl"
#"core" or "non-core"
#1/0: cold/warm start
In this section, probably only these top lines need close attention. They decide some features of
an experiment:
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using the ‘external’ GFDL module for surface flux calculations (otherwise using the
CICE ‘built-in’ boundary module).
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using the preprocessed CORE runoff (regrided, currently the annual mean climatology
only) data instead of that read in by MATM and interpolated by OASIS3. Doing so
ensures reasonable re-distribution (spreading) of the river runoff into ocean, avoiding
potential model crashes due to unrealistic freshwater ‘accumulation’ and assocaied
abnormal heating at some river outlets. The penalty is that model loses all temporal
variablities of the runoff forcing.
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ocean and sea ice start from the observed temperature and salinity, namely, a “cold
start”. Otherwise the ocean-sea ice system will use a “warm start”, as described below.
A “warm start” means an experiment is initialised with the full set of restart data from an
existing AusCOM spin-up run. So in the case of “cold_start=0”, the user must set a path to an
initial condition source, for example:
owner=dhb599
expname=cnyf2-01
ic_year=500
access=~$owner
#access=/short/p66/$owner
#if run under owner’s home directory
#if run under /short/p66 disk
These example lines indicate that restart files of (end of) year 500 from user dhb599’s spin-up
run cnyf2-01 will be used to start this experiment.
Following the above pre-definition, all data files will be copied to the working directory (i.e.
$rundir).
R-3.2 Adapting or Creating Configuration Files
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