*Non-Boussinesq revision of 3 MOM_CVMix modules #444
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This commit revises MOM_CVMix_conv, MOM_CVMix_ddiff and MOM_CVMix_shear to work in an appropriate mixture of thickness and vertical extent variables to enable their use in non-Boussinesq mode, using thickness_to_dz to convert between the two, while retaining the previous answers in Boussinesq mode. This includes the use of a layer thicknesses rather than a vertical distance in the denominator of the calculation of the buoyancy frequency and to the units of the internal rescaled gravity variable in CVMix_conv. This commit eliminates any direct or indirect dependency on the Boussinesq reference density in these 3 modules when in non-Boussinesq mode. This set of changes includes changing the units of 7 internal variables and the addition, renaming, or change in the dimensions of 4 internal variables. One element in the CVMix_ddiff_cs type is rescaled to use thickness units. These changes lead to the removal of 4 factors of GV%H_to_Z in these 3 modules. Answers will change in non-Boussinesq mode when USE_CVMix_CONVECTION, USE_CVMIX_DDIFF, USE_PP81 or USE_LMD94 are true, but they are bitwise identical in all Boussinesq test cases.
Hallberg-NOAA
added
enhancement
Codecov Report
@@ Coverage Diff @@
## dev/gfdl #444 +/- ##
============================================
- Coverage 38.07% 38.06% -0.01%
============================================
Files 269 269
Lines 77187 77194 +7
Branches 14256 14258 +2
============================================
+ Hits 29386 29387 +1
- Misses 42477 42484 +7
+ Partials 5324 5323 -1
... and 1 file with indirect coverage changes 📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more |
marshallward
approved these changes
Aug 14, 2023
|
Gaea regresssion: https://gitlab.gfdl.noaa.gov/ogrp/MOM6/-/pipelines/20302 ✔️ |
This was referenced Nov 13, 2023
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This commit revises MOM_CVMix_conv, MOM_CVMix_ddiff and MOM_CVMix_shear to work in an appropriate mixture of thickness and vertical extent variables to enable their use in non-Boussinesq mode, using thickness_to_dz to convert between the two, while retaining the previous answers in Boussinesq mode. This includes the use of a layer thicknesses rather than a vertical distance in the denominator of the calculation of the buoyancy frequency and to the units of the internal rescaled gravity variable in CVMix_conv. This commit eliminates any direct or indirect dependency on the Boussinesq reference density in these 3 modules when in non-Boussinesq mode.
This set of changes includes changing the units of 7 internal variables and the addition, renaming, or change in the dimensions of 4 internal variables. One element in the CVMix_ddiff_cs type is rescaled to use thickness units. These changes lead to the removal of 4 factors of GV%H_to_Z in these 3 modules.
Answers will change in non-Boussinesq mode when USE_CVMix_CONVECTION, USE_CVMIX_DDIFF, USE_PP81 or USE_LMD94 are true, but they are bitwise identical in all Boussinesq test cases.