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MOM6: *+Fix CHANNEL_DRAG with bathymetry above sea level #570

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Merged
Hallberg-NOAA merged 1 commit into from
Dec 9, 2025
Merged

MOM6: *+Fix CHANNEL_DRAG with bathymetry above sea level #570

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7 changes: 7 additions & 0 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 @@ -866,6 +866,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions coupled_AM2_LM3_SIS2/Concurrent_ice_1deg/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -866,6 +866,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions coupled_AM2_LM3_SIS2/Intersperse_ice_1deg/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -866,6 +866,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/Baltic/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -866,6 +866,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/Baltic_ALE_z_offline_tracers/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -1067,6 +1067,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/Baltic_OM4_025/MOM_parameter_doc.all
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1185,6 +1185,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/Baltic_OM4_05/MOM_parameter_doc.all
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1189,6 +1189,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/Baltic_OM5_025/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -1172,6 +1172,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/Baltic_OM5nb_025/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -1164,6 +1164,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/OM4_025/MOM_parameter_doc.all
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1185,6 +1185,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/OM4_05/MOM_parameter_doc.all
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1189,6 +1189,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/OM_1deg/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -1176,6 +1176,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/SIS2/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -837,6 +837,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/SIS2_bergs_cgrid/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -837,6 +837,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ice_ocean_SIS2/SIS2_cgrid/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -837,6 +837,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
7 changes: 7 additions & 0 deletions ocean_only/global_ALE/hycom/MOM_parameter_doc.all
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Original file line number Diff line number Diff line change
Expand Up @@ -1114,6 +1114,13 @@ DRAG_AS_BODY_FORCE = False ! [Boolean] default = False
CHANNEL_DRAG = True ! [Boolean] default = False
! If true, the bottom drag is exerted directly on each layer proportional to the
! fraction of the bottom it overlies.
CHANNEL_DRAG_SHELFBREAK_DEPTH = 0.0 ! [m] default = 0.0
! When CHANNEL_DRAG is true, the bathymetric depth interpolated to the vorticity
! point is a combination of the harmonic mean of the adjacent velocity point
! depths below this depth and the arithmetic mean of the depths above it, to
! roughly mimic a continental shelf break profile. Setting this to exceed
! MAXIMUM_DEPTH leads to linear interpolation of the topography between velocity
! points.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag law is
! cdrag*DRAG_BG_VEL*u.
Expand Down
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