multiple years OBCs files

[milicak]

Hi,

I am trying to setup a regional MOM6 domain with open boundary conditions. And I am wondering if there is a way to provide OBC files with different years rather than combining all of them in one single netcdf file. My domain is pretty big, so each years file is around 1 GB, and I want to run 60 years of simulation.
Instead I'd like to force with a year of file_obc_year.nc and model can understand which "year" it is, and get the proper data.

In fact, a similar question is for the output as well, I want each month to be written in a different netcdf file. Is it possible that in diag_table?

Thanks in advance,
Best,
Mehmet

 

[adcroft]

The latter is possible: look at the diag_table in double_gyre which uses a format for writing output as file_%yr_%mn (MOM6-examples/diag_table at dev/gfdl · NOAA-GFDL/MOM6-examples).

The former, reading a time-series from multiple files is not. We've suggested this would be a useful feature for FMS but it's not there yet. Worse, we have to "pad" the yearly files with data from the preceding/subsequent files in the series so that time_interp() can do the correct thing near the year boundaries. This means we have to pre-process all our forcing data which is very wasteful (disk space and human time).