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MOM6: Add INTERFACE_FILTER_DT_BUG (#850) #517

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Mar 10, 2025
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MOM6: Add INTERFACE_FILTER_DT_BUG (#850) #517

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16 changes: 8 additions & 8 deletions coupled_AM2_LM3_SIS2/AM2_SIS2_MOM6i_1deg/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -44,14 +44,6 @@ BULKMIXEDLAYER = True ! [Boolean] default = True
! layers. Layers 1 through NKML+NKBL have variable densities. There must be at
! least NKML+NKBL+1 layers if BULKMIXEDLAYER is true. BULKMIXEDLAYER can not be
! used with USE_REGRIDDING. The default is influenced by ENABLE_THERMODYNAMICS.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
USE_POROUS_BARRIER = False ! [Boolean] default = False
! If true, use porous barrier to constrain the widths and face areas at the
! edges of the grid cells.
Expand Down Expand Up @@ -84,6 +76,14 @@ TRADV_SPANS_COUPLING = False ! [Boolean] default = False
! the coupling timestep. The actual tracer advection timestep that is used in
! this case is the largest integer multiple of the coupling timestep that is
! less than or equal to DT_TRACER_ADVECT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
HFREEZE = -1.0 ! [m] default = -1.0
! If HFREEZE > 0, melt potential will be computed. The actual depth over which
! melt potential is computed will be min(HFREEZE, OBLD), where OBLD is the
Expand Down
10 changes: 5 additions & 5 deletions coupled_AM2_LM3_SIS2/AM2_SIS2_MOM6i_1deg/MOM_parameter_doc.short
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,6 @@
! This file was written by the model and records the non-default parameters used at run-time.

! === module MOM ===
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DT = 3600.0 ! [s]
! The (baroclinic) dynamics time step. The time-step that is actually used will
! be an integer fraction of the forcing time-step (DT_FORCING in ocean-only mode
Expand All @@ -15,6 +10,11 @@ DT_THERM = 7200.0 ! [s] default = 3600.0
! DT and of DT_TRACER_ADVECT and less than the forcing or coupling time-step.
! However, if THERMO_SPANS_COUPLING is true, DT_THERM can be an integer multiple
! of the coupling timestep. By default DT_THERM is set to DT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DTBT_RESET_PERIOD = 0.0 ! [s] default = 7200.0
! The period between recalculations of DTBT (if DTBT <= 0). If DTBT_RESET_PERIOD
! is negative, DTBT is set based only on information available at
Expand Down
16 changes: 8 additions & 8 deletions coupled_AM2_LM3_SIS2/Concurrent_ice_1deg/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,14 +44,6 @@ BULKMIXEDLAYER = True ! [Boolean] default = True
! layers. Layers 1 through NKML+NKBL have variable densities. There must be at
! least NKML+NKBL+1 layers if BULKMIXEDLAYER is true. BULKMIXEDLAYER can not be
! used with USE_REGRIDDING. The default is influenced by ENABLE_THERMODYNAMICS.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
USE_POROUS_BARRIER = False ! [Boolean] default = False
! If true, use porous barrier to constrain the widths and face areas at the
! edges of the grid cells.
Expand Down Expand Up @@ -84,6 +76,14 @@ TRADV_SPANS_COUPLING = False ! [Boolean] default = False
! the coupling timestep. The actual tracer advection timestep that is used in
! this case is the largest integer multiple of the coupling timestep that is
! less than or equal to DT_TRACER_ADVECT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
HFREEZE = -1.0 ! [m] default = -1.0
! If HFREEZE > 0, melt potential will be computed. The actual depth over which
! melt potential is computed will be min(HFREEZE, OBLD), where OBLD is the
Expand Down
10 changes: 5 additions & 5 deletions coupled_AM2_LM3_SIS2/Concurrent_ice_1deg/MOM_parameter_doc.short
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,6 @@
! This file was written by the model and records the non-default parameters used at run-time.

! === module MOM ===
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DT = 3600.0 ! [s]
! The (baroclinic) dynamics time step. The time-step that is actually used will
! be an integer fraction of the forcing time-step (DT_FORCING in ocean-only mode
Expand All @@ -15,6 +10,11 @@ DT_THERM = 7200.0 ! [s] default = 3600.0
! DT and of DT_TRACER_ADVECT and less than the forcing or coupling time-step.
! However, if THERMO_SPANS_COUPLING is true, DT_THERM can be an integer multiple
! of the coupling timestep. By default DT_THERM is set to DT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DTBT_RESET_PERIOD = 0.0 ! [s] default = 7200.0
! The period between recalculations of DTBT (if DTBT <= 0). If DTBT_RESET_PERIOD
! is negative, DTBT is set based only on information available at
Expand Down
16 changes: 8 additions & 8 deletions coupled_AM2_LM3_SIS2/Intersperse_ice_1deg/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,14 +44,6 @@ BULKMIXEDLAYER = True ! [Boolean] default = True
! layers. Layers 1 through NKML+NKBL have variable densities. There must be at
! least NKML+NKBL+1 layers if BULKMIXEDLAYER is true. BULKMIXEDLAYER can not be
! used with USE_REGRIDDING. The default is influenced by ENABLE_THERMODYNAMICS.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
USE_POROUS_BARRIER = False ! [Boolean] default = False
! If true, use porous barrier to constrain the widths and face areas at the
! edges of the grid cells.
Expand Down Expand Up @@ -84,6 +76,14 @@ TRADV_SPANS_COUPLING = False ! [Boolean] default = False
! the coupling timestep. The actual tracer advection timestep that is used in
! this case is the largest integer multiple of the coupling timestep that is
! less than or equal to DT_TRACER_ADVECT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
HFREEZE = -1.0 ! [m] default = -1.0
! If HFREEZE > 0, melt potential will be computed. The actual depth over which
! melt potential is computed will be min(HFREEZE, OBLD), where OBLD is the
Expand Down
10 changes: 5 additions & 5 deletions coupled_AM2_LM3_SIS2/Intersperse_ice_1deg/MOM_parameter_doc.short
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,6 @@
DIABATIC_FIRST = True ! [Boolean] default = False
! If true, apply diabatic and thermodynamic processes, including buoyancy
! forcing and mass gain or loss, before stepping the dynamics forward.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DT = 3600.0 ! [s]
! The (baroclinic) dynamics time step. The time-step that is actually used will
! be an integer fraction of the forcing time-step (DT_FORCING in ocean-only mode
Expand All @@ -18,6 +13,11 @@ DT_THERM = 7200.0 ! [s] default = 3600.0
! DT and of DT_TRACER_ADVECT and less than the forcing or coupling time-step.
! However, if THERMO_SPANS_COUPLING is true, DT_THERM can be an integer multiple
! of the coupling timestep. By default DT_THERM is set to DT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DTBT_RESET_PERIOD = 0.0 ! [s] default = 7200.0
! The period between recalculations of DTBT (if DTBT <= 0). If DTBT_RESET_PERIOD
! is negative, DTBT is set based only on information available at
Expand Down
16 changes: 8 additions & 8 deletions ice_ocean_SIS2/Baltic/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,14 +44,6 @@ BULKMIXEDLAYER = True ! [Boolean] default = True
! layers. Layers 1 through NKML+NKBL have variable densities. There must be at
! least NKML+NKBL+1 layers if BULKMIXEDLAYER is true. BULKMIXEDLAYER can not be
! used with USE_REGRIDDING. The default is influenced by ENABLE_THERMODYNAMICS.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
USE_POROUS_BARRIER = False ! [Boolean] default = False
! If true, use porous barrier to constrain the widths and face areas at the
! edges of the grid cells.
Expand Down Expand Up @@ -84,6 +76,14 @@ TRADV_SPANS_COUPLING = False ! [Boolean] default = False
! the coupling timestep. The actual tracer advection timestep that is used in
! this case is the largest integer multiple of the coupling timestep that is
! less than or equal to DT_TRACER_ADVECT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
APPLY_INTERFACE_FILTER = False ! [Boolean] default = False
! If true, model interface heights are subjected to a grid-scale dependent
! spatial smoothing, often with biharmonic filter.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
HFREEZE = -1.0 ! [m] default = -1.0
! If HFREEZE > 0, melt potential will be computed. The actual depth over which
! melt potential is computed will be min(HFREEZE, OBLD), where OBLD is the
Expand Down
10 changes: 5 additions & 5 deletions ice_ocean_SIS2/Baltic/MOM_parameter_doc.short
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,6 @@
! This file was written by the model and records the non-default parameters used at run-time.

! === module MOM ===
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DT = 3600.0 ! [s]
! The (baroclinic) dynamics time step. The time-step that is actually used will
! be an integer fraction of the forcing time-step (DT_FORCING in ocean-only mode
Expand All @@ -15,6 +10,11 @@ DT_THERM = 7200.0 ! [s] default = 3600.0
! DT and of DT_TRACER_ADVECT and less than the forcing or coupling time-step.
! However, if THERMO_SPANS_COUPLING is true, DT_THERM can be an integer multiple
! of the coupling timestep. By default DT_THERM is set to DT.
THICKNESSDIFFUSE = True ! [Boolean] default = False
! If true, isopycnal surfaces are diffused with a Laplacian coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion or interface height smoothing before dynamics.
! This is only used if THICKNESSDIFFUSE or APPLY_INTERFACE_FILTER is true.
DTBT_RESET_PERIOD = 0.0 ! [s] default = 7200.0
! The period between recalculations of DTBT (if DTBT <= 0). If DTBT_RESET_PERIOD
! is negative, DTBT is set based only on information available at
Expand Down
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