A user recently sent me an email about an common issue, so I thought it would be useful to share the solution here:
Question:
I am running WACCM with the FWmaSD compset and the default start date is 2005-01-01. When I try to change this to say, 2006-01-01 or any other date, the code crashes immediately after I submit the run.
To set a new start date is execute the command ./xmlchange RUN_STARTDATE = yyyy-dd-dd
Is there another way to change the start date of the run?
Solution:
You have changed the RUN_STARTDATE correctly. The trouble you are running in to is specific to compsets with specified dynamics, in that there is an additional change to the atmosphere namelist required to tell the model which met field file to start with. By default, this is set to:
met_data_file = '2005/GEOS5_09x125_20050101.nc’
So if you change the RUN_STARTDATE to 2006-01-01, you also need this in your user_nl_cam file:
met_data_file = '2006/GEOS5_09x125_20060101.nc’
Question:
I am running WACCM with the FWmaSD compset and the default start date is 2005-01-01. When I try to change this to say, 2006-01-01 or any other date, the code crashes immediately after I submit the run.
To set a new start date is execute the command ./xmlchange RUN_STARTDATE = yyyy-dd-dd
Is there another way to change the start date of the run?
Solution:
You have changed the RUN_STARTDATE correctly. The trouble you are running in to is specific to compsets with specified dynamics, in that there is an additional change to the atmosphere namelist required to tell the model which met field file to start with. By default, this is set to:
met_data_file = '2005/GEOS5_09x125_20050101.nc’
So if you change the RUN_STARTDATE to 2006-01-01, you also need this in your user_nl_cam file:
met_data_file = '2006/GEOS5_09x125_20060101.nc’