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Note that this directory will contain the pre-compiled precompiled  master.exe  file which already includes the software branch which we later will use to perturb the physics tendencies.  In the control run we will leave these everything at their the standard setting.

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

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

This directory contains now not only initial files for the atmospheric model (ICM*INI*) but also input files for the wave model. 

399_4  links to a directory which contains data on sea surface temperature and radiatively active greenhouse gases (e.g. ozone). 

rtables  contains input files for the radiation scheme.

run.ccb  is the model runs script which will be submitted to the PBS job scheduler.  It 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.The file

Part 2 – Perturbation Experiment