Variables in restart files

[dickson]

Hi,

I am currently trying out the 4DVAR module. To use the GLS mixing scheme, the field AKv is required in the initial condition. I decided to include it by running ROMS for a few days to generate a restart file. Yet, although AKv could be found in restart files generated from my operational runs using COAWST with ROMS-SWAN coupling, I couldn't find it in the file generated from the mentioned run. Besides, I also noticed that variables in the restart files are not the same when I run the model for different duration.

For example, only a few variables could be found if the model was run for 24 hours, with restart interval of 12 hours.

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More fields could be found if the model was run for 72 hours, but this still does not contain AKv.

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A lot more variables, including Akv, could be found in the restart file from my operational runs. The run duration was also 72 hours.

I was wondering how the fields included in the restart files are defined. How could I include Akv in the restart file?

Thanks in advance!