set_fv3nml_ens_stoch_seeds module

Updates stochastic physics parameters in the namelist based on user configuration settings.

set_fv3nml_ens_stoch_seeds(cdate, expt_config)

Creates new namelist files with unique stochastic “seed” parameters for an ensemble-enabled experiment (i.e., where DO_ENSEMBLE: True), using a base namelist file in ${EXPTDIR} as a template. These new namelist files are stored within each member directory housed within each cycle directory. Files of any two ensemble members differ only in their stochastic “seed” parameter values. These namelist files are generated when this file is called as part of the run_fcst task.

Parameters:

  • cdate (datetime.datetime) – The cycle date

  • expt_config (dict) – The in-memory dictionary representing the experiment configuration file

Returns:

None