WikiPrint - from Polar Technologies

Scientific user will only require to modify 'experiment.wrf4g' in order to design, manage and develop the scientific experiments. This file configures the experiment. It provides all the parameters to the 'namelist.input' file of the WRF. It has the following structure:

Domain of simulation

Input data

Output data

Experiment time-specification


WRF-namelist parameters

User provides namelist values. They will be over-written on multiple_parameters experiments (only the included parameters). User can modify any of the paramters of the namelist. It has to be the same name as in the namelist.input with a prefix-flag and the record to its belongs



Multipledates runs

When the multiple_dates parameter is set to 0, two additional configuration options (simulation_interval_h and simulation_lenght_h) are available to set up hindcast runs. Their usage is best understood through a couple of examples. Imagine you are interested in running a 7-day forecast starting every day at 12Z for the period from 1-Jan-2001 to 31-Dic-2001. This can be accomplished by setting:

start_date = "2001-01-01_12:00:00"
end_date = "2002-01-01_00:00:00"
is_continuous = 0
  simulation_interval_h = 24
  simulation_lenght_h = 168 # this 7 days in hours

and the will setup 365 independent runs performing the 7-day forecasts which will be distributed in the grid or in your local cluster.