Remove capability to have non-zero land ice frazil salinity

E3SM-Ocean-Discussion · Apr 2, 2024 · 76365bd · 76365bd
1 parent edf89d1
commit 76365bd
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Showing 2 changed files with 3 additions and 6 deletions.
diff --git a/components/mpas-ocean/src/Registry.xml b/components/mpas-ocean/src/Registry.xml
@@ -954,13 +954,9 @@
 					possible_values="Any positive real number."
 		/>
 		<nml_option name="config_frazil_sea_ice_reference_salinity" type="real" default_value="4.0" units="1.e-3"
-					description="assumed salinity of frazil ice in the open ocean."
+					description="assumed salinity of frazil ice in the open ocean. Land ice frazil salinity is always 0."
 					possible_values="Any positive real number."
 		/>
-		<nml_option name="config_frazil_land_ice_reference_salinity" type="real" default_value="0.0" units="1.e-3"
-					description="assumed salinity of frazil ice under land ice."
-					possible_values="Any non-negative real number."
-		/>
 		<nml_option name="config_frazil_maximum_freezing_temperature" type="real" default_value="0.0" units="C"
 			description="Maximum freezing temperature for the creation of frazil"
 			possible_values="Any real number."

diff --git a/components/mpas-ocean/src/shared/mpas_ocn_frazil_forcing.F b/components/mpas-ocean/src/shared/mpas_ocn_frazil_forcing.F
@@ -527,7 +527,7 @@ subroutine ocn_frazil_forcing_build_arrays(domain, meshPool, forcingPool, stateP
 
             ! get frazil salinity
             if (underLandIce) then
-              frazilSalinity = config_frazil_land_ice_reference_salinity
+              frazilSalinity = 0.0_RKIND
             else
               frazilSalinity = config_frazil_sea_ice_reference_salinity
             end if
@@ -618,6 +618,7 @@ subroutine ocn_frazil_forcing_build_arrays(domain, meshPool, forcingPool, stateP
            ! for freshwater budgets
            accumulatedLandIceFrazilMassNew(iCell) = accumulatedLandIceFrazilMassOld(iCell) &
                                                   + sumNewFrazilIceThickness * config_frazil_ice_density
+           ! There is no accumulatedLandIceFrazilSalinity because it is always 0
         end if
 
       enddo   ! do iCell = 1, nCells