Physics update in cumulus convection, PBL & surface layer for UFS_P7 #314
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JongilHan66
changed the title
| real(kind=kind_phys) :: betas_deep = 0.05 !< fraction factor of downdraft air mass reaching ground surface over sea | ||
| real(kind=kind_phys) :: betal_deep = 0.01 !< fraction factor of downdraft air mass reaching ground surface over land | ||
| real(kind=kind_phys) :: betas_deep = 0.01 !< fraction factor of downdraft air mass reaching ground surface over sea | ||
| real(kind=kind_phys) :: evef = 0.09 !< evaporation factor from convective rain |
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what is the difference between evef and evfact_deep? Both have same documentation.
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evfact_deep & evfactl_deep were commented out in SAS deep convection scheme, are no longer used, and will be eventually removed from both convection schemes and GFS_typedefs.F90.
.gitmodules
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| @@ -5,8 +5,8 @@ | |||
| [submodule "ccpp/framework"] | |||
| path = ccpp/framework | |||
| url = https://github.com/NCAR/ccpp-framework | |||
| branch = main | |||
| branch = master | |||
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Jongil, would you please fix this?
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I don't understand what's the problem and please direct me to fix it.
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In the file .gitmodules in your fv3 branch han_p7, you are using "master" branch for ccpp-framework, please change it back to "main".
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In the file .gitmodules in my fv3 branch han_p7, I changed "master" to "main" and commit and pushed back. Should I also update my ufs-weather-model branch (ufs_hanp7)? Also, do I need to re-do the RT run with this ccpp-framework?
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No, because the hash of ccpp-framework that fv3atm uses is still the same.
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Submodule pointer for ccpp-physics is correct, and |
Description
(Instructions: this, and all subsequent sections of text should be removed and filled in as appropriate.)
Provide a detailed description of what this PR does.
What bug does it fix, or what feature does it add?
Is a change of answers expected from this PR?
Cumulus convection:
a) More strict convection trigger
b) Reduced entrainment rate below cloud base
c) Enhanced downdraft detrainments starting from 60mb above the ground surface
d) Reduced rain evaporation
e) Modification of cloud depth separating shallow convection from deep convection
PBL and surface layer:
a) Inclusion of wind shear effect reducing characteristic mixing length
b) Reduction of background diffusivity in the inversion layers as a function of surface roughness and green vegetation fraction
c) PBL updraft overshooting limited by bulk Richardson number-based-PBL depth
d) Inclusion of new canopy heat storage parameterization
e) Modification of thermal roughness calculation over land
f) Increase of momentum roughness length over sea
g) Inclusion of sea spray effect parameterization
The verification results for the physics updates above can be found in https://www.emc.ncep.noaa.gov/gmb/jhan/vsdbw/ccaa14
More detailed description for the updates and ccaa14 results are given in the attached ppt file.
Tests_physics_MRF_MJO_JHan_WLi.pptx
Verification results for additional physics updates are in:
Winter: https://www.emc.ncep.noaa.gov/gmb/jhan/vsdbw/ccaa41
Summer: https://www.emc.ncep.noaa.gov/gmb/jhan/vsdbw/ccaa41x
The final update is based on 'ccaa41'.
Description for the new maximum z/L parameterization can be found in the attached ppt file.
PBL_SL_inv_JHan.pptx
Issue(s) addressed
Link the issues to be closed with this PR, whether in this repository, or in another repository.
(Remember, issues should always be created before starting work on a PR branch!)
Testing
How were these changes tested?
What compilers / HPCs was it tested with?
Are the changes covered by regression tests? (If not, why? Do new tests need to be added?)
Have the ufs-weather-model regression test been run? On what platform?
Dependencies
If testing this branch requires non-default branches in other repositories, list them.
Those branches should have matching names (ideally)
Do PRs in upstream repositories need to be merged first?
If so add the "waiting for other repos" label and list the upstream PRs
NCAR/ccpp-physics#665
ufs-community/ufs-weather-model#589