+Rescale SST and SSS as seen at the driver level #172
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@@ Coverage Diff @@
## dev/gfdl #172 +/- ##
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- Coverage 37.40% 37.40% -0.01%
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Files 259 259
Lines 71840 71848 +8
Branches 13442 13443 +1
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+ Hits 26871 26873 +2
- Misses 40025 40031 +6
Partials 4944 4944
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Modified the coupler_types, data_override and time_interp modules used in the mct_cap and nuopc_cap driver code to use the appropriate modules from the MOM6 framework directory, which are properly documented and extensible, and will accommodate and buffer changes in the underlying FMS or other infrastructure code. These changes should have been in place previously, but are required to allow for rescaling of the fields being read via time_interp_external or data_override. Some unused module use references to mpp_chksum from mpp_mod were also removed. These changes mirror changes that had previously been applied to the FMS_cap driver code. All answers should be bitwise identical, but this has not been specifically tested via the GFDL testing procedures.
Applied dimensional rescaling of the ocean_heat and ocean_salt elements of the surface type. Although this surface_state is a public type, neither of these particular elements are used outside of MOM6 and these fields are not reused after they are set. They are instead being retained because they may become useful in the future. All answers are bitwise identical.
Applied temperature rescaling to the heat capacity element, C_p, of the forcing type. All answers are bitwise identical, but the rescaled units of one element of a public type were altered.
Rescaled the SST and SSS element of the surface type, usually sfc_state%SST and sfc_state%SSS, from units of [degC] and [ppt] to [degC ~> C] and [ppt ~> S], as well as a handful of other temperature and salinity variables related to the surface forcing (usually targets of restoring), and cancelled out a number of common US%C_to_degC or US%S_to_ppt conversion factors. Several unused variables were also removed, and a missing allocate and restart registration were added for the running-mean salinity in the (as yet unused) MOM_controlled_forcing module. All answers are bitwise identical, but there are changes to the rescaled units of two elements of a public type.
Use cons_temp_to_pot_temp and abs_saln_to_prac_saln to do the conversions for several diagnostics, working with rescaled variables on array segments, rather than calling gsw_pt_from_ct and gsw_sp_from_sr once from each point. All answers are bitwise identical.
Dimensionally rescaled the Stokes drift velocity variables in the mech_forcing type from [m s-1] to [L T-1 ~> m s-1], and the surface wave wavenumber variable from [rad m-1] to [rad Z-1 ~> rad m-1], eliminating several scaling factors from the code in the process, and attaching a scaling factor to a hard-coded dimensional velocity. All answers in the MOM6-examples test suite are bitwise identical.
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The force-push done to this PR was to re-order the commits, so that the code after each of the commits in this PR should compile correctly and pass all tests. |
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Gaea regression: https://gitlab.gfdl.noaa.gov/ogrp/MOM6/-/pipelines/16273 ✔️ |
marshallward
approved these changes
Aug 3, 2022
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This PR consists of a sequence of commits that add dimensional rescaling for
temperature and salinity and related variables that are visible at the driver
level, most prominently including the SST and SSS fields in the surface type.
Appropriate dimensional rescaling is also applied to the Stokes drifts and
Stokes-band wavenumbers in the mech_forcing type. These changes include a
correction to the documented units of one diagnostic variable, so there are some
small changes to the contents of the available_diags files. All answers are
bitwise identical.
The commits in this PR include: