Nextsimdg test cycling DA on betzy #9
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hcorr is with unit (unlike in fortran code) so scorr here don't need to divide by dx
the namelist option "init_file" meant for the very first initial condition file, not the restart file during cycling; to link the first cycle restart file, we need to keep time_start in kwargs during cycling, restart files will be copied over, not linked over, since DA step will update the restart file, making it a new copy
restart at first cycle perturbed seems to cause forecast to fail, removed perturb:restart option; only perturb the forcing for now. add parallel_mode options in slurm.py job submitter, to allow running openmp program in single-job mode (spawning multiple model.run in a big allocation using srun). The job script is scripts/nextsim.dg.test.submit.sh
only show the messages when c.debug=True
if variable is in a group: e.g. data/tair, the assert on variable name in f.variables is not working. use try-catch instead f['data/tair'] shall work
renamed scripts/diag.py to scripts/diagnose.py
f.variables doesn't work for compound varname, change the way to assert variable is in file.
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Based on previous PR #7, and PR #8 , I've tested nextsimdg model ensemble forecasts on betzy.sigma2.no computers. Found a few further issues and resolved in the following commits.
I'm now testing nextsimdg model DA code assimilating some OSISAF routine observations. Cherry-picking some development of the data assimilation code from "other_features" branch, will also include these commits in this PR.