Skip to content

MOM6: Spatially varying bottom drag coefficient (#983) #568

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Hallberg-NOAA merged 1 commit into from
Dec 3, 2025
Merged

MOM6: Spatially varying bottom drag coefficient (#983) #568

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 3 additions & 0 deletions coupled_AM2_LM3_SIS2/AM2_SIS2_MOM6i_1deg/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -892,6 +892,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 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 @@ -892,6 +892,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 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 @@ -892,6 +892,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 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 @@ -892,6 +892,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/Baltic_ALE_z_offline_tracers/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1078,6 +1078,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/Baltic_OM4_025/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1196,6 +1196,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/Baltic_OM4_05/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1200,6 +1200,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/Baltic_OM5_025/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1183,6 +1183,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/Baltic_OM5nb_025/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1175,6 +1175,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/OM4_025/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1196,6 +1196,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/OM4_05/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1200,6 +1200,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/OM_1deg/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1187,6 +1187,9 @@ HBBL = 10.0 ! [m]
! KV_EXTRA_BBL if BOTTOMDRAGLAW is not defined, or the thickness over which
! near-bottom velocities are averaged for the drag law if BOTTOMDRAGLAW is
! defined but LINEAR_DRAG is not.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/SIS2/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -863,6 +863,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ice_ocean_SIS2/SIS2_bergs_cgrid/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -863,6 +863,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 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 @@ -863,6 +863,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/cooling_only/BML/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -722,6 +722,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/cooling_only/EPBL/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,6 +860,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/cooling_only/KPP/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,6 +860,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/mech_only/BML/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -722,6 +722,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/mech_only/EPBL/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,6 +860,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/mech_only/KPP/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,6 +860,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/skin_warming_wind/BML/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -722,6 +722,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
3 changes: 3 additions & 0 deletions ocean_only/CVmix_SCM_tests/skin_warming_wind/EPBL/MOM_parameter_doc.all
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,6 +860,9 @@ HBBL = 10.0 ! [m]
CDRAG = 0.0 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of the velocity field to
! the bottom stress. CDRAG is only used if BOTTOMDRAGLAW is defined.
CDRAG_MAP = False ! [Boolean] default = False
! If true, apply a spatially varying scaling factor to CDRAG, specified by
! CDRAG_VAR in CDRAG_FILE.
BBL_USE_TIDAL_BG = False ! [Boolean] default = False
! Flag to use the tidal RMS amplitude in place of constant background velocity
! for computing u* in the BBL. This flag is only used when BOTTOMDRAGLAW is true
Expand Down
Loading