Daily restart files

[angothelene]

Hi, I'm doing a simulation ending on 20191114 000000. At the end of the simulation I get the following two restart files: HEMCO_restart.201911140000.nc and GEOSChem.Restart.20191101_0000z.nc4. Is it possible to get GEOSChem.Restart.20191114_0000z.nc4 instead? Thanks much!

[yantosca]

Thanks for writing @angothelene. It could be that the out-of-the-box settings for Restart.frequency and Restart.duration collection were never reset from 00000100 0000001 to 00000014 000000. Or if you would like to get daily restarts, then these should be 00000001 0000000.

You can also set theDiagnFreq setting to the same value as in the HISTORY.rc file (it accepts words like Daily, Monthly, End, or also intervals like 0000001 000000.

Note that PR #1515 (which will be released in GEOS-Chem 14.0.2, hopefully today) fixes an issue where the restart file was not flushed to disk immediately after writing.

[yantosca]

Also tagging @Jourdan-He and @SaptSinha

[angothelene]

Thanks Bob, interestingly the settings were set to "End" in both HISTORY.nc and HEMCO_Config.rc that's why I was suprised to get GEOSChem.Restart.20191101_0000z.nc4 instead of GEOSChem.Restart.20191114_0000z.nc4.

DiagnFreq:                   End

#==============================================================================
# %%%%% THE Restart COLLECTION %%%%%
#
# GEOS-Chem restart file fields
#
# Available for all simulations
#==============================================================================
  Restart.filename:           './GEOSChem.Restart.%y4%m2%d2_%h2%n2z.nc4',
  Restart.format:             'CFIO',
  Restart.frequency:          'End',
  Restart.duration:           'End',
  Restart.mode:               'instantaneous'

[yantosca]

@angothelene: Which version are you using?

[angothelene]

Ha, I should have started with that. I'm using 12.9.3

[yantosca]

Ah OK. If you can, try to add the modifications in #1515 to your code and see if that resolves it. You can do a short run (1 or 2 days) to test. There have also been other minor fixes to History diagnostics since 12.9.3.

[yantosca]

@angothelene: Were you able to find a solution?

[angothelene]

Not yet, I’ve been busy with other stuff. I’ll work on that early Jan and will report back!

[angothelene]

It actually works when changing Restart.duration to the same value as in Restart.frequency in HISTORY.rc. So to save a restart file every day the following works:

Restart.frequency: 00000001 000000 Restart.duration: 00000001 000000

[yantosca]

Thanks @angothelene for the feedback. We can close this issue out then.