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Add changes for variable epssm and reference sounding option #1131

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Add changes for variable epssm and reference sounding option #1131

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f0b26e6
1) Added code to allow epssm to vary with height according to a speci…
Nov 28, 2023
1914709
Modifications to clean version 8 of MPAS coe:
Dec 6, 2023
24e589d
Revisions to the pull request that contain additions to the clean
Dec 28, 2023
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48 changes: 47 additions & 1 deletion src/core_atmosphere/Registry.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -251,7 +251,8 @@
units="-"
description="Coefficient for the divergent component of the Laplacian filter of momentum in the relaxation zone"
possible_values="Positive real values"/>
</nml_record>

</nml_record>

<nml_record name="damping" in_defaults="true">
<nml_option name="config_zd" type="real" default_value="22000.0"
Expand All @@ -264,6 +265,26 @@
description="Maximum w-damping coefficient at model top"
possible_values="0 $\leq$ config_xnutr $\leq$ 1"/>

<nml_option name="config_epssm_minimum" type="real" default_value="0.1"
units="-"
description="Value of epssm below transition zone"
possible_values="Positive real values between 0 and 1"/>

<nml_option name="config_epssm_maximum" type="real" default_value="0.1"
units="-"
description="Value of epssm above transition zone"
possible_values="Positive real values between 0 and 1"/>

<nml_option name="config_epssm_transition_bottom_z" type="real" default_value="10000."
units="m"
description="Height MSL of bottom of transition zone for epssm"
possible_values="Positive real values"/>

<nml_option name="config_epssm_transition_top_z" type="real" default_value="20000."
units="m"
description="Height MSL of top of transition zone for epssm"
possible_values="Positive real values"/>

<nml_option name="config_mpas_cam_coef" type="real" default_value="0.0" in_defaults="false"
units="-"
description="Coefficient for scaling the 2nd-order horizontal mixing in the mpas_cam absorbing layer"
Expand Down Expand Up @@ -471,6 +492,10 @@
<var name="cf3"/>
<var name="zgrid"/>
<var name="rdzw"/>
<var name="etp"/>
<var name="etm"/>
<var name="ewp"/>
<var name="ewm"/>
<var name="dzu"/>
<var name="rdzu"/>
<var name="fzm"/>
Expand All @@ -487,6 +512,7 @@
<var name="deriv_two"/>
<var name="defc_a"/>
<var name="defc_b"/>
<var name="reference_sounding_switch"/>
#ifdef MPAS_CAM_DYCORE
<var name="cell_gradient_coef_x"/>
<var name="cell_gradient_coef_y"/>
Expand Down Expand Up @@ -607,6 +633,10 @@
<var name="cf3"/>
<var name="zgrid"/>
<var name="rdzw"/>
<var name="etp"/>
<var name="etm"/>
<var name="ewp"/>
<var name="ewm"/>
<var name="dzu"/>
<var name="rdzu"/>
<var name="fzm"/>
Expand All @@ -623,6 +653,7 @@
<var name="deriv_two"/>
<var name="defc_a"/>
<var name="defc_b"/>
<var name="reference_sounding_switch"/>
#ifdef MPAS_CAM_DYCORE
<var name="cell_gradient_coef_x"/>
<var name="cell_gradient_coef_y"/>
Expand Down Expand Up @@ -1353,6 +1384,18 @@
<var name="rdzw" type="real" dimensions="nVertLevels" units="unitless"
description="Reciprocal dzw"/>

<var name="etp" type="real" dimensions="nVertLevels" units="unitless"
description="etp = (1+epssm(z))/2 at theta point"/>

<var name="etm" type="real" dimensions="nVertLevels" units="unitless"
description="etm = (1-epssm(z))/2 at theta point"/>

<var name="ewp" type="real" dimensions="nVertLevelsP1" units="unitless"
description="ewp = (1+epssm(z))/2 at w point"/>

<var name="ewm" type="real" dimensions="nVertLevelsP1" units="unitless"
description="ewm = (1-epssm(z))/2 at w point"/>

<var name="dzu" type="real" dimensions="nVertLevels" units="unitless"
description="d(zeta) at w levels"/>

Expand Down Expand Up @@ -1400,6 +1443,9 @@
<var name="qv_init" type="real" dimensions="nVertLevels" units="kg kg^{-1}"
description="qv reference profile"/>

<var name="reference_sounding_switch" type="integer" dimensions="" units="unitless" default_value="1"
description="Switch to designate a reference sounding is used (1) or full variables (0)"/>

<!-- Space needed for advection -->
<var name="deriv_two" type="real" dimensions="FIFTEEN TWO nEdges" units="unitless"
description="weights for cell-centered second derivative, normal to edge, for transport scheme"/>
Expand Down
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