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Output 24 hour average instead if daily average for CICE output #2422
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May I ask if a "forecast day" history stream would work?
before looking to workaround calendar days. |
@NickSzapiro-NOAA see my test run on hercules at /work/noaa/marine/nbarton/RUNS/UFS/run_CICE_24h_OUTPUT The output in the history directory is at 00Z |
Instead of one of the calendar-based options then, a timestep stream seems to work, like
for datm_cdeps_gfs (on hercules at /work/noaa/global/nszapiro/tasks/ice_24hrOutput/ufs-weather-model/tests/run_dir/datm_cdeps_gfs_intel/ . See time_bounds in history/iceh.*nc files) You do need to have the ice timestep to know how many steps in 24h, like 96 n for 900s dt |
Thanks @NickSzapiro-NOAA . Tagging @aerorahul as I think this was a feature request for g-w. |
@NickSzapiro-NOAA I got permission denied when accessing your directory on Hercules. |
I started a draft PR #2437 and run_dir on hera should be readable for all (/scratch1/NCEPDEV/nems/Nick.Szapiro/tasks/ice_24hrOutput/ufs-weather-model/tests/run_dir/cpld_control_gfsv17_intel/history/) For how to configure/exercise this stream:
|
We'd like to have the same configurations in RT and GFS workflow. @RuiyuSun @aerorahul can you provide the ice_in file in G-W used in GFSv17 forecast? |
@junwang-noaa @aerorahul An example is ice_in at /lfs/h2/emc/stmp/ruiyu.sun/RUNDIRS/HR46/gfs.2020012600/gfsfcst.2020012600/fcst.212569 and /lfs/h2/emc/physics/noscrub/ruiyu.sun/ice_in. The file was created by https://github.com/NOAA-EMC/global-workflow/blob/develop/ush/parsing_namelists_CICE.sh |
Thanks @RuiyuSun |
The ice_in files look consistent to me, differing only in history_dir and incond_dir |
Description
Currently CICE can only output daily average. E.g. when model run starts from 2023032206 and run for 72 hours, and the history output is specified as:
the history output will be daily output. The first file iceh.2021-03-22.nc covers 2021032206-2021032300 (time bound 0-0.75hr), then the second file iceh.2021-03-23.nc covers 2021032300-2021032400 (time bound 0.75-1.75). In order to have consistent 24 hour average files as those other model components do, a new option needs to be added to CICE so that it can output 24 hour average. E.g. the file iceh.2021-03-22.nc covers 2021032206-2021032306 (time bound 0-1.0hr) and iceh.2021-03-23.nc covers 2021032306-2021032406 (time bound 1.0-2.0hr).
Solution
Add an option in CICE to output 24 hour average history files.
Alternatives
Related to
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