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Directories for climatological input files are mostly included through symbolic links to a central storage location. 

Model Experiment Parameters

The model experiment directory should now contain the following files:

Code Block
% ls
399_4@          ICMSHh7ccINIT  master.exe   sfcwindin        wam_namelist
ICMCLh7ccINIT   cdwavein       oifs_run     specwavein       wam_subgrid_0
ICMGGh7ccINIT   fort.4         rtables/     uwavein          wam_subgrid_1
ICMGGh7ccINIUA  ifsdata@       run.ccb      wam_grid_tables  wam_subgrid_2

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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   ! model time step is 900 seconds
CUSTOP='h144'  ! experiment for 144 hours (6 days)
CNMEXP="h7cc"  ! experiment ID

NFPLEV=137     ! model grid has 137 vertical levels
NFPMAX=399     ! horizontal resolution is Tco399

NPOSTS=0       ! regular output every 24 steps,
NHISTS=0       ! with UTSTEP=900 this means every 6 hours
NFRPOS=24
NFRHIS=24

Submitting the Control Experiment

We will not run this experiment in an interactive node because this would not provide sufficient resources for a timely completion of the experiment.  We will instead submit a job to the batch scheduler, requesting a larger number of computing nodes.

Panel
bgColor#f0f0ff
titleTasks - Submit job to HPCF
  1. Type the following command:   qsub ./run.ppn
  2. Verify the status of your submitted job by typing:   qstat -u $USER  or use the alias  qstatu

Part 2 – Perturbation Experiment