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Update NUOPC cap for new features #41

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DeniseWorthen opened this issue Nov 12, 2021 · 0 comments · Fixed by ufs-community/ufs-weather-model#910
Closed

Update NUOPC cap for new features #41

DeniseWorthen opened this issue Nov 12, 2021 · 0 comments · Fixed by ufs-community/ufs-weather-model#910

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@DeniseWorthen
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DeniseWorthen commented Nov 12, 2021

The NUOPC cap for CICE6 needs to be updated to implement recent features added to CICE6

  • addition of optional cap-level debugging for a single model location (set using latpnt(1) , lonpnt(1)) using flag debug_model in ice_in
  • addition of required calls and parameters associated with the implementation of Advanced Snow Physics in Icepack Advanced snow physics CICE-Consortium/Icepack#360.

The optional snow physics are not currently exercised in UWM but are required to fully test a fix for meltsliq initialization (CICE-Consortium/Icepack#376) when compiling with debug option -init=snan,arrays . See related UWM Issue 580.

The proposed fix does allow UWM to run in debug model with NaN initialization if tr_snow is false. Setting tr_snow to true still fails for the array meltsliq and additional debugging will be required to determine a fix when tr_snow is true.

To run a test using tr_snow, the following were added to ice_in:

...
    restart_pond_lvl  = .false.
    tr_snow      = .false.
    restart_snow = .false.
    tr_aero      = .false.
...

&snow_nml
    snwredist       = 'bulk'
    snwlvlfac       =    0.3
    rsnw_fall       =  100.0
    snw_aging_table = 'test'
/

&icefields_snow_nml
/
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