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Minor modification and bug fix in GFS cumulus convection schemes #2487
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@rhaesung Can I check your holiday PTO schedule this week? If you are available tomorrow, we can schedule to work on this pr. |
@FernandoAndrade-NOAA @BrianCurtis-NOAA #2483 has ACS subcomponent PR as well. I think people will be away for holiday. Instead, can we schedule to work on this pr? @rhaesung can you sync up branches? |
FV3 needs their CM's to approve it. |
There's WW3 changes but no WW3 PR linked. |
Sync issue at WW3. @rhaesung please, go ahead to sync up branches across sub components and weather model level. |
@FernandoAndrade-NOAA @BrianCurtis-NOAA FYI: If @grantfirl @dustinswales are off this week, we may not be able to do merging this week. |
The test_changes.list hasn't been merged properly. |
@jkbk2004 Okay, it should be good to go. Please let me know if you encounter any issues. |
the test_changes.list wasn't updated properly, lots of merge conflicts there. Unless you have the original test_changes.list from when you ran your initial full suite test, it might be easiest to ask @jkbk2004 to run the full suite again to generate an updated test_changes.list |
Sorry for the confusion—I'm still getting familiar with the process, and I don't have the original test_changes.list file. @jkbk2004, could you please help by running the full suite to generate a fresh test_changes.list? |
@rhaesung When you merge develop and your test_changes.list is different (so you have conflicts), what I do is
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@DeniseWorthen Great, thanks for the tip! I appreciate the guidance. |
@rhaesung Could you please pull in the latest develop to this branch (same for fv3atm and ufs/dev for ccpp-physics)? |
@rhaesung correct CMEPS hash is https://github.com/NOAA-EMC/CMEPS/tree/cdbed6c48c2626e67ee5c071947d991e6f0fbc2e |
@jkbk2004 Done. Please let me know if you see any other issues. |
@BrianCurtis-NOAA as there is still some discussion on #2529: cubed sphere, we are about to start working on this pr. |
@rhaesung quite some cases are failing when comparing with new baseline. It happens across machines. no crash and baseline creation itself is ok. I suspect some random behavior is happening. There is no problem with develop branch. Sounds like some debugging is needed. @BrianCurtis-NOAA @FernandoAndrade-NOAA FYI: Failed baseline comparison cases are
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This PR is supposed to change the results. |
yes, baseline changes are expected. New baseline creation is ok but when it compares with new baseline, it fails. |
Are the results not reproducible with this change? |
@JongilHan66 Could you take a look at this ? |
@rhaesung can you sync up branches again? We want to resume to test this. Also, we want to combine in #2570 and #2579 to this pr. @RatkoVasic-NOAA @gspetro-NOAA can you sync up branches in your PRs? |
@jkbk2004 Syncing is complete, but the baseline reproduction issue still persists. I'm not sure if you'd like to resume testing on your side |
@rhaesung ok! then we need to give more time to this pr. |
Thanks @jkbk2004! I'll let you know when it's ready for retesting. |
Done, updated #2579 |
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Description:
This PR includes minor modifications and bug fixes to the GFS cumulus convection schemes, enhancing their performance and addressing identified issues. The code of this PR was provided by @JongilHan66.
Modified prognostic updraft fraction (sigmab) calculation in 'progsigma_calc.f90' which is physically more sound:
a) moisture convergence calculation: integrate from the convection source level rather than from the cloud base
b) 2D advection of sigmab: sigmab advection averaged over the cloud layers rather than taking a maximum sigmab advection from k=2 to the model top
c) To suppress unrealistically large reflectivity in the model first time step, minimum sigmab at the first time step is set to zero
Fix in missing vertical transport of turbulent kinetic energy (TKE) when aerosol transport is turned on (samfdeepcnv.f & samfshalcnv.f)
Introduce TKE at model layer interfaces (tkeh) for use in convection schemes (GFS_typedefs.F90, GFS_typedefs.meta, satmedmfvdifq.F, satmedmfvdifq.meta, samfdeepcnv.f, samfdeepcnv.meta, samfshalcnv.f, and samfshalcnv.meta)
Vertical transports of hydrometeor variables are currently not allowed in the convection schemes. But vertical transports of number concentrations of only cloud water and ice are mistakenly allowed, which is fixed in this update (CCPP_typedefs.F90)
All the modifications and bug fixes above had neutral impacts on the GFS forecasts
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