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+(*)Remove coord_SLight #337

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merged 2 commits into from
Apr 3, 2023

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Hallberg-NOAA
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Removed the coord_slight module and all calls to it, and obsoleted all run-time parameters that are exclusively related to it. This code was an attempt from 2015 to define an appropriate hybrid vertical coordinate for global climate modeling, but it never worked very well (usually falling apart in the second year), and it has not been used in any publication or active model for many years. The test case that exercised this coordinate in the MOM6-examples test suite is also being removed via MOM6-examples PR #388. The coord_SLight code is being eliminated altogether now to simplify the MOM6 code base and reduce the volume of untested and unused code. All answers in all known MOM6 configurations in active use are bitwise identical, although there is a remote chance that someone somewhere might be using the SLIGHT coordinate.

  Removed the coord_slight module and all calls to it, and obsoleted all
run-time parameters that are exclusively related to it.  This code was an
attempt from 2015 to define an appropriate hybrid vertical coordinate for global
climate modeling, but it never worked very well (usually falling apart in the
second year), and it has not been used in any publication or active model for
many years.  The test case that exercised this coordinate in the MOM6-examples
test suite is also being removed via MOM6-examples PR mom-ocean#388.  The coord_SLight
code is being eliminated altogether now to simplify the MOM6 code base and
reduce the volume of untested and unused code.  All answers in all known MOM6
configurations in active use are bitwise identical, although there is a remote
chance that someone somewhere might be using the SLIGHT coordinate.
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codecov bot commented Mar 13, 2023

Codecov Report

Merging #337 (1b40774) into dev/gfdl (1bb66a4) will increase coverage by 0.19%.
The diff coverage is 100.00%.

❗ Current head 1b40774 differs from pull request most recent head 0d920ef. Consider uploading reports for the commit 0d920ef to get more accurate results

@@             Coverage Diff              @@
##           dev/gfdl     #337      +/-   ##
============================================
+ Coverage     36.91%   37.10%   +0.19%     
============================================
  Files           265      264       -1     
  Lines         74648    74272     -376     
  Branches      13851    13767      -84     
============================================
+ Hits          27554    27560       +6     
+ Misses        42003    41622     -381     
+ Partials       5091     5090       -1     
Impacted Files Coverage Δ
src/ALE/MOM_regridding.F90 28.73% <ø> (+1.72%) ⬆️
src/ALE/regrid_consts.F90 60.00% <ø> (+3.75%) ⬆️
src/framework/MOM_diag_remap.F90 86.27% <ø> (+0.56%) ⬆️
src/diagnostics/MOM_obsolete_params.F90 73.00% <100.00%> (+2.03%) ⬆️

... and 1 file with indirect coverage changes

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@marshallward
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Gaea regression: https://gitlab.gfdl.noaa.gov/ogrp/MOM6/-/pipelines/18725 ✔️ 🟡

@marshallward marshallward merged commit 19f8613 into NOAA-GFDL:dev/gfdl Apr 3, 2023
@Hallberg-NOAA Hallberg-NOAA deleted the rm_coord_slight branch May 10, 2024 22:15
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2 participants