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MOM_parameter_doc.all
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! This file was written by the model and records all non-layout or debugging parameters used at run-time.
! === module MOM ===
SPLIT = True ! [Boolean] default = True
! Use the split time stepping if true.
CALC_RHO_FOR_SEA_LEVEL = False ! [Boolean] default = False
! If true, the in-situ density is used to calculate the
! effective sea level that is returned to the coupler. If false,
! the Boussinesq parameter RHO_0 is used.
ENABLE_THERMODYNAMICS = True ! [Boolean] default = True
! If true, Temperature and salinity are used as state
! variables.
USE_EOS = True ! [Boolean] default = True
! If true, density is calculated from temperature and
! salinity with an equation of state. If USE_EOS is
! true, ENABLE_THERMODYNAMICS must be true as well.
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.
USE_CONTEMP_ABSSAL = False ! [Boolean] default = False
! If true, the prognostics T&S are the conservative temperature
! and absolute salinity. Care should be taken to convert them
! to potential temperature and practical salinity before
! exchanging them with the coupler and/or reporting T&S diagnostics.
ADIABATIC = False ! [Boolean] default = False
! There are no diapycnal mass fluxes if ADIABATIC is
! true. This assumes that KD = KDML = 0.0 and that
! there is no buoyancy forcing, but makes the model
! faster by eliminating subroutine calls.
OFFLINE_TRACER_MODE = False ! [Boolean] default = False
! If true, barotropic and baroclinic dynamics, thermodynamics
! are all bypassed with all the fields necessary to integrate
! the tracer advection and diffusion equation are read in from
! files stored from a previous integration of the prognostic model.
! NOTE: This option only used in the ocean_solo_driver.
USE_REGRIDDING = True ! [Boolean] default = False
! If True, use the ALE algorithm (regridding/remapping).
! If False, use the layered isopycnal algorithm.
BULKMIXEDLAYER = False ! [Boolean] default = False
! If true, use a Kraus-Turner-like bulk mixed layer
! with transitional buffer 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, interface heights are diffused with a
! coefficient of KHTH.
THICKNESSDIFFUSE_FIRST = True ! [Boolean] default = False
! If true, do thickness diffusion before dynamics.
! This is only used if THICKNESSDIFFUSE is true.
BATHYMETRY_AT_VEL = False ! [Boolean] default = False
! If true, there are separate values for the basin depths
! at velocity points. Otherwise the effects of topography
! are entirely determined from thickness points.
DT = 1200.0 ! [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 or the
! coupling timestep in coupled mode.)
DT_THERM = 1200.0 ! [s] default = 1200.0
! The thermodynamic and tracer advection time step.
! Ideally DT_THERM should be an integer multiple of DT
! and less than the forcing or coupling time-step, unless
! THERMO_SPANS_COUPLING is true, in which case DT_THERM
! can be an integer multiple of the coupling timestep. By
! default DT_THERM is set to DT.
THERMO_SPANS_COUPLING = False ! [Boolean] default = False
! If true, the MOM will take thermodynamic and tracer
! timesteps that can be longer than the coupling timestep.
! The actual thermodynamic timestep that is used in this
! case is the largest integer multiple of the coupling
! timestep that is less than or equal to DT_THERM.
HMIX_SFC_PROP = 1.0 ! [m] default = 1.0
! If BULKMIXEDLAYER is false, HMIX_SFC_PROP is the depth
! over which to average to find surface properties like
! SST and SSS or density (but not surface velocities).
HMIX_UV_SFC_PROP = 0.0 ! [m] default = 0.0
! If BULKMIXEDLAYER is false, HMIX_UV_SFC_PROP is the depth
! over which to average to find surface flow properties,
! SSU, SSV. A non-positive value indicates no averaging.
MIN_Z_DIAG_INTERVAL = 2.16E+04 ! [s] default = 0.0
! The minimum amount of time in seconds between
! calculations of depth-space diagnostics. Making this
! larger than DT_THERM reduces the performance penalty
! of regridding to depth online.
INTERPOLATE_P_SURF = False ! [Boolean] default = False
! If true, linearly interpolate the surface pressure
! over the coupling time step, using the specified value
! at the end of the step.
DTBT_RESET_PERIOD = 1200.0 ! [s] default = 1200.0
! The period between recalculations of DTBT (if DTBT <= 0).
! If DTBT_RESET_PERIOD is negative, DTBT is set based
! only on information available at initialization. If 0,
! DTBT will be set every dynamics time step. The default
! is set by DT_THERM. This is only used if SPLIT is true.
FRAZIL = True ! [Boolean] default = False
! If true, water freezes if it gets too cold, and the
! the accumulated heat deficit is returned in the
! surface state. FRAZIL is only used if
! ENABLE_THERMODYNAMICS is true.
DO_GEOTHERMAL = False ! [Boolean] default = False
! If true, apply geothermal heating.
BOUND_SALINITY = True ! [Boolean] default = False
! If true, limit salinity to being positive. (The sea-ice
! model may ask for more salt than is available and
! drive the salinity negative otherwise.)
C_P = 3925.0 ! [J kg-1 K-1] default = 3991.86795711963
! The heat capacity of sea water, approximated as a
! constant. This is only used if ENABLE_THERMODYNAMICS is
! true. The default value is from the TEOS-10 definition
! of conservative temperature.
P_REF = 2.0E+07 ! [Pa] default = 2.0E+07
! The pressure that is used for calculating the coordinate
! density. (1 Pa = 1e4 dbar, so 2e7 is commonly used.)
! This is only used if USE_EOS and ENABLE_THERMODYNAMICS
! are true.
FIRST_DIRECTION = 0 ! default = 0
! An integer that indicates which direction goes first
! in parts of the code that use directionally split
! updates, with even numbers (or 0) used for x- first
! and odd numbers used for y-first.
CHECK_BAD_SURFACE_VALS = False ! [Boolean] default = False
! If true, check the surface state for ridiculous values.
SAVE_INITIAL_CONDS = False ! [Boolean] default = False
! If true, write the initial conditions to a file given
! by IC_OUTPUT_FILE.
IC_OUTPUT_FILE = "MOM_IC" ! default = "MOM_IC"
! The file into which to write the initial conditions.
WRITE_GEOM = 0 ! default = 1
! If =0, never write the geometry and vertical grid files.
! If =1, write the geometry and vertical grid files only for
! a new simulation. If =2, always write the geometry and
! vertical grid files. Other values are invalid.
ENSEMBLE_OCEAN = False ! [Boolean] default = False
! If False, The model is being run in serial mode as a single realization.
! If True, The current model realization is part of a larger ensemble
! and at the end of step MOM, we will perform a gather of the ensemble
! members for statistical evaluation and/or data assimilation.
! === module MOM_domains ===
REENTRANT_X = False ! [Boolean] default = True
! If true, the domain is zonally reentrant.
REENTRANT_Y = False ! [Boolean] default = False
! If true, the domain is meridionally reentrant.
TRIPOLAR_N = False ! [Boolean] default = False
! Use tripolar connectivity at the northern edge of the
! domain. With TRIPOLAR_N, NIGLOBAL must be even.
NIGLOBAL = 180 !
! The total number of thickness grid points in the
! x-direction in the physical domain. With STATIC_MEMORY_
! this is set in MOM_memory.h at compile time.
NJGLOBAL = 480 !
! The total number of thickness grid points in the
! y-direction in the physical domain. With STATIC_MEMORY_
! this is set in MOM_memory.h at compile time.
! === module MOM_hor_index ===
! Sets the horizontal array index types.
! === module MOM_verticalGrid ===
! Parameters providing information about the vertical grid.
G_EARTH = 9.8 ! [m s-2] default = 9.8
! The gravitational acceleration of the Earth.
RHO_0 = 1035.0 ! [kg m-3] default = 1035.0
! The mean ocean density used with BOUSSINESQ true to
! calculate accelerations and the mass for conservation
! properties, or with BOUSSINSEQ false to convert some
! parameters from vertical units of m to kg m-2.
BOUSSINESQ = True ! [Boolean] default = True
! If true, make the Boussinesq approximation.
ANGSTROM = 1.0E-10 ! [m] default = 1.0E-10
! The minumum layer thickness, usually one-Angstrom.
H_TO_M = 1.0 ! [m H-1] default = 1.0
! A constant that translates the model's internal
! units of thickness into m.
NK = 75 ! [nondim]
! The number of model layers.
! === module MOM_fixed_initialization ===
INPUTDIR = "INPUT" ! default = "."
! The directory in which input files are found.
! === module MOM_grid_init ===
GRID_CONFIG = "mosaic" !
! A character string that determines the method for
! defining the horizontal grid. Current options are:
! mosaic - read the grid from a mosaic (supergrid)
! file set by GRID_FILE.
! cartesian - use a (flat) Cartesian grid.
! spherical - use a simple spherical grid.
! mercator - use a Mercator spherical grid.
GRID_FILE = "ocean_hgrid.nc" !
! Name of the file from which to read horizontal grid data.
TOPO_CONFIG = "file" !
! This specifies how bathymetry is specified:
! file - read bathymetric information from the file
! specified by (TOPO_FILE).
! flat - flat bottom set to MAXIMUM_DEPTH.
! bowl - an analytically specified bowl-shaped basin
! ranging between MAXIMUM_DEPTH and MINIMUM_DEPTH.
! spoon - a similar shape to 'bowl', but with an vertical
! wall at the southern face.
! halfpipe - a zonally uniform channel with a half-sine
! profile in the meridional direction.
! benchmark - use the benchmark test case topography.
! Neverland - use the Neverland test case topography.
! DOME - use a slope and channel configuration for the
! DOME sill-overflow test case.
! ISOMIP - use a slope and channel configuration for the
! ISOMIP test case.
! DOME2D - use a shelf and slope configuration for the
! DOME2D gravity current/overflow test case.
! Kelvin - flat but with rotated land mask.
! seamount - Gaussian bump for spontaneous motion test case.
! dumbbell - Sloshing channel with reservoirs on both ends.
! shelfwave - exponential slope for shelfwave test case.
! supercritical - flat but with 8.95 degree land mask.
! Phillips - ACC-like idealized topography used in the Phillips config.
! dense - Denmark Strait-like dense water formation and overflow.
! USER - call a user modified routine.
TOPO_FILE = "ocean_topog.nc" ! default = "topog.nc"
! The file from which the bathymetry is read.
TOPO_VARNAME = "depth" ! default = "depth"
! The name of the bathymetry variable in TOPO_FILE.
TOPO_EDITS_FILE = "" ! default = ""
! The file from which to read a list of i,j,z topography overrides.
MAXIMUM_DEPTH = 6500.0 ! [m]
! The maximum depth of the ocean.
MINIMUM_DEPTH = 9.5 ! [m] default = 0.0
! If MASKING_DEPTH is unspecified, then anything shallower than
! MINIMUM_DEPTH is assumed to be land and all fluxes are masked out.
! If MASKING_DEPTH is specified, then all depths shallower than
! MINIMUM_DEPTH but deeper than MASKING_DEPTH are rounded to MINIMUM_DEPTH.
! === module MOM_open_boundary ===
! Controls where open boundaries are located, what kind of boundary condition to impose, and what data to apply, if any.
OBC_NUMBER_OF_SEGMENTS = 3 ! default = 0
! The number of open boundary segments.
OBC_ZERO_VORTICITY = False ! [Boolean] default = False
! If true, sets relative vorticity to zero on open boundaries.
OBC_FREESLIP_VORTICITY = False ! [Boolean] default = False
! If true, sets the normal gradient of tangential velocity to
! zero in the relative vorticity on open boundaries. This cannot
! be true if another OBC_XXX_VORTICITY option is True.
OBC_COMPUTED_VORTICITY = True ! [Boolean] default = False
! If true, uses the external values of tangential velocity
! in the relative vorticity on open boundaries. This cannot
! be true if another OBC_XXX_VORTICITY option is True.
OBC_SPECIFIED_VORTICITY = False ! [Boolean] default = False
! If true, uses the external values of tangential velocity
! in the relative vorticity on open boundaries. This cannot
! be true if another OBC_XXX_VORTICITY option is True.
OBC_ZERO_STRAIN = False ! [Boolean] default = False
! If true, sets the strain used in the stress tensor to zero on open boundaries.
OBC_FREESLIP_STRAIN = False ! [Boolean] default = False
! If true, sets the normal gradient of tangential velocity to
! zero in the strain use in the stress tensor on open boundaries. This cannot
! be true if another OBC_XXX_STRAIN option is True.
OBC_COMPUTED_STRAIN = True ! [Boolean] default = False
! If true, sets the normal gradient of tangential velocity to
! zero in the strain use in the stress tensor on open boundaries. This cannot
! be true if another OBC_XXX_STRAIN option is True.
OBC_SPECIFIED_STRAIN = False ! [Boolean] default = False
! If true, sets the normal gradient of tangential velocity to
! zero in the strain use in the stress tensor on open boundaries. This cannot
! be true if another OBC_XXX_STRAIN option is True.
OBC_ZERO_BIHARMONIC = True ! [Boolean] default = False
! If true, zeros the Laplacian of flow on open boundaries in the biharmonic
! viscosity term.
MASK_OUTSIDE_OBCS = False ! [Boolean] default = False
! If true, set the areas outside open boundaries to be land.
OBC_SEGMENT_001 = "J=0,I=0:N,FLATHER,ORLANSKI,NUDGED,ORLANSKI_TAN,NUDGED_TAN" !
! Documentation needs to be dynamic?????
OBC_SEGMENT_001_VELOCITY_NUDGING_TIMESCALES = 0.3, 360.0 ! [days] default = 0.0
! Timescales in days for nudging along a segment,
! for inflow, then outflow. Setting both to zero should
! behave like SIMPLE obcs for the baroclinic velocities.
OBC_SEGMENT_002 = "J=N,I=N:0,FLATHER,ORLANSKI,NUDGED,ORLANSKI_TAN,NUDGED_TAN" !
! Documentation needs to be dynamic?????
OBC_SEGMENT_002_VELOCITY_NUDGING_TIMESCALES = 0.3, 360.0 ! [days] default = 0.0
! Timescales in days for nudging along a segment,
! for inflow, then outflow. Setting both to zero should
! behave like SIMPLE obcs for the baroclinic velocities.
OBC_SEGMENT_003 = "I=0,J=N:0,FLATHER,ORLANSKI,NUDGED,ORLANSKI_TAN,NUDGED_TAN" !
! Documentation needs to be dynamic?????
OBC_SEGMENT_003_VELOCITY_NUDGING_TIMESCALES = 0.3, 360.0 ! [days] default = 0.0
! Timescales in days for nudging along a segment,
! for inflow, then outflow. Setting both to zero should
! behave like SIMPLE obcs for the baroclinic velocities.
BRUSHCUTTER_MODE = True ! [Boolean] default = False
! If true, read external OBC data on the supergrid.
OBC_RADIATION_MAX = 10.0 ! [m s-1] default = 10.0
! The maximum magnitude of the baroclinic radiation
! velocity (or speed of characteristics). This is only
! used if one of the open boundary segments is using Orlanski.
OBC_RAD_VEL_WT = 0.3 ! [nondim] default = 0.3
! The relative weighting for the baroclinic radiation
! velocities (or speed of characteristics) at the new
! time level (1) or the running mean (0) for velocities.
! Valid values range from 0 to 1. This is only used if
! one of the open boundary segments is using Orlanski.
OBC_RAD_THICK_WT = 0.2 ! [nondim] default = 0.2
! The relative weighting for the baroclinic radiation
! velocities (or speed of characteristics) at the new
! time level (1) or the running mean (0) for thicknesses.
! Valid values range from 0 to 1. This is only used if
! one of the open boundary segments is using Orlanski.
OBC_TRACER_RESERVOIR_LENGTH_SCALE_OUT = 3.0E+04 ! [m] default = 0.0
! An effective length scale for restoring the tracer concentration
! at the boundaries to externally imposed values when the flow
! is exiting the domain.
OBC_TRACER_RESERVOIR_LENGTH_SCALE_IN = 3000.0 ! [m] default = 0.0
! An effective length scale for restoring the tracer concentration
! at the boundaries to values from the interior when the flow
! is entering the domain.
MASKING_DEPTH = 1.0 ! [m] default = -9999.0
! The depth below which to mask points as land points, for which all
! fluxes are zeroed out. MASKING_DEPTH is ignored if negative.
CHANNEL_CONFIG = "none" ! default = "none"
! A parameter that determines which set of channels are
! restricted to specific widths. Options are:
! none - All channels have the grid width.
! global_1deg - Sets 16 specific channels appropriate
! for a 1-degree model, as used in CM2G.
! list - Read the channel locations and widths from a
! text file, like MOM_channel_list in the MOM_SIS
! test case.
! file - Read open face widths everywhere from a
! NetCDF file on the model grid.
ROTATION = "2omegasinlat" ! default = "2omegasinlat"
! This specifies how the Coriolis parameter is specified:
! 2omegasinlat - Use twice the planetary rotation rate
! times the sine of latitude.
! betaplane - Use a beta-plane or f-plane.
! USER - call a user modified routine.
OMEGA = 7.2921E-05 ! [s-1] default = 7.2921E-05
! The rotation rate of the earth.
! === module MOM_boundary_update ===
USE_FILE_OBC = False ! [Boolean] default = False
! If true, use external files for the open boundary.
USE_TIDAL_BAY_OBC = False ! [Boolean] default = False
! If true, use the tidal_bay open boundary.
USE_KELVIN_WAVE_OBC = False ! [Boolean] default = False
! If true, use the Kelvin wave open boundary.
USE_SHELFWAVE_OBC = False ! [Boolean] default = False
! If true, use the shelfwave open boundary.
USE_DYED_CHANNEL_OBC = False ! [Boolean] default = False
! If true, use the dyed channel open boundary.
! === module MOM_tracer_registry ===
! === module segment_tracer_registry_init ===
! === module MOM_EOS ===
EQN_OF_STATE = "WRIGHT" ! default = "WRIGHT"
! EQN_OF_STATE determines which ocean equation of state
! should be used. Currently, the valid choices are
! "LINEAR", "UNESCO", "WRIGHT", "NEMO" and "TEOS10".
! This is only used if USE_EOS is true.
EOS_QUADRATURE = False ! [Boolean] default = False
! If true, always use the generic (quadrature) code
! code for the integrals of density.
TFREEZE_FORM = "LINEAR" ! default = "LINEAR"
! TFREEZE_FORM determines which expression should be
! used for the freezing point. Currently, the valid
! choices are "LINEAR", "MILLERO_78", "TEOS10"
TFREEZE_S0_P0 = 0.0 ! [deg C] default = 0.0
! When TFREEZE_FORM=LINEAR,
! this is the freezing potential temperature at
! S=0, P=0.
DTFREEZE_DS = -0.054 ! [deg C PSU-1] default = -0.054
! When TFREEZE_FORM=LINEAR,
! this is the derivative of the freezing potential
! temperature with salinity.
DTFREEZE_DP = -7.75E-08 ! [deg C Pa-1] default = 0.0
! When TFREEZE_FORM=LINEAR,
! this is the derivative of the freezing potential
! temperature with pressure.
! === module MOM_restart ===
PARALLEL_RESTARTFILES = True ! [Boolean] default = False
! If true, each processor writes its own restart file,
! otherwise a single restart file is generated
RESTARTFILE = "MOM.res" ! default = "MOM.res"
! The name-root of the restart file.
LARGE_FILE_SUPPORT = True ! [Boolean] default = True
! If true, use the file-size limits with NetCDF large
! file support (4Gb), otherwise the limit is 2Gb.
MAX_FIELDS = 100 ! default = 100
! The maximum number of restart fields that can be used.
RESTART_CHECKSUMS_REQUIRED = True ! [Boolean] default = True
! If true, require the restart checksums to match and error out otherwise.
! Users may want to avoid this comparison if for example the restarts are
! made from a run with a different mask_table than the current run,
! in which case the checksums will not match and cause crash.
! === module MOM_tracer_flow_control ===
USE_USER_TRACER_EXAMPLE = False ! [Boolean] default = False
! If true, use the USER_tracer_example tracer package.
USE_DOME_TRACER = False ! [Boolean] default = False
! If true, use the DOME_tracer tracer package.
USE_ISOMIP_TRACER = False ! [Boolean] default = False
! If true, use the ISOMIP_tracer tracer package.
USE_IDEAL_AGE_TRACER = False ! [Boolean] default = False
! If true, use the ideal_age_example tracer package.
USE_REGIONAL_DYES = False ! [Boolean] default = False
! If true, use the regional_dyes tracer package.
USE_OIL_TRACER = False ! [Boolean] default = False
! If true, use the oil_tracer tracer package.
USE_ADVECTION_TEST_TRACER = False ! [Boolean] default = False
! If true, use the advection_test_tracer tracer package.
USE_OCMIP2_CFC = False ! [Boolean] default = False
! If true, use the MOM_OCMIP2_CFC tracer package.
USE_generic_tracer = False ! [Boolean] default = False
! If true and _USE_GENERIC_TRACER is defined as a
! preprocessor macro, use the MOM_generic_tracer packages.
USE_PSEUDO_SALT_TRACER = False ! [Boolean] default = False
! If true, use the pseudo salt tracer, typically run as a diagnostic.
USE_BOUNDARY_IMPULSE_TRACER = False ! [Boolean] default = False
! If true, use the boundary impulse tracer.
USE_DYED_OBC_TRACER = False ! [Boolean] default = False
! If true, use the dyed_obc_tracer tracer package.
! === module MOM_coord_initialization ===
COORD_CONFIG = "gprime" !
! This specifies how layers are to be defined:
! ALE or none - used to avoid defining layers in ALE mode
! file - read coordinate information from the file
! specified by (COORD_FILE).
! BFB - Custom coords for buoyancy-forced basin case
! based on SST_S, T_BOT and DRHO_DT.
! linear - linear based on interfaces not layers
! layer_ref - linear based on layer densities
! ts_ref - use reference temperature and salinity
! ts_range - use range of temperature and salinity
! (T_REF and S_REF) to determine surface density
! and GINT calculate internal densities.
! gprime - use reference density (RHO_0) for surface
! density and GINT calculate internal densities.
! ts_profile - use temperature and salinity profiles
! (read from COORD_FILE) to set layer densities.
! USER - call a user modified routine.
GFS = 9.8 ! [m s-2] default = 9.8
! The reduced gravity at the free surface.
GINT = 0.0098 ! [m s-2]
! The reduced gravity across internal interfaces.
REMAP_UV_USING_OLD_ALG = True ! [Boolean] default = True
! If true, uses the old remapping-via-a-delta-z method for
! remapping u and v. If false, uses the new method that remaps
! between grids described by an old and new thickness.
REGRIDDING_COORDINATE_MODE = "Z*" ! default = "LAYER"
! Coordinate mode for vertical regridding.
! Choose among the following possibilities:
! LAYER - Isopycnal or stacked shallow water layers
! ZSTAR, Z* - stetched geopotential z*
! SIGMA_SHELF_ZSTAR - stetched geopotential z* ignoring shelf
! SIGMA - terrain following coordinates
! RHO - continuous isopycnal
! HYCOM1 - HyCOM-like hybrid coordinate
! SLIGHT - stretched coordinates above continuous isopycnal
! ADAPTIVE - optimize for smooth neutral density surfaces
REGRIDDING_COORDINATE_UNITS = "m" ! default = "m"
! Units of the regridding coordinuate.
ALE_COORDINATE_CONFIG = "FILE:vgrid_75_2m.nc,dz" ! default = "UNIFORM"
! Determines how to specify the coordinate
! resolution. Valid options are:
! PARAM - use the vector-parameter ALE_RESOLUTION
! UNIFORM[:N] - uniformly distributed
! FILE:string - read from a file. The string specifies
! the filename and variable name, separated
! by a comma or space, e.g. FILE:lev.nc,dz
! or FILE:lev.nc,interfaces=zw
! WOA09[:N] - the WOA09 vertical grid (approximately)
! FNC1:string - FNC1:dz_min,H_total,power,precision
! HYBRID:string - read from a file. The string specifies
! the filename and two variable names, separated
! by a comma or space, for sigma-2 and dz. e.g.
! HYBRID:vgrid.nc,sigma2,dz
!ALE_RESOLUTION = 4*2.0, 2*2.01, 2.02, 2.03, 2.05, 2.08, 2.11, 2.15, 2.2, 2.27, 2.34, 2.44, 2.55, 2.69, 2.85, 3.04, 3.27, 3.54, 3.85, 4.22, 4.66, 5.18, 5.79, 6.52, 7.37, 8.37, 9.55, 10.94, 12.57, 14.48, 16.72, 19.33, 22.36, 25.87, 29.91, 34.53, 39.79, 45.72, 52.37, 59.76, 67.89, 76.74, 86.29, 96.47, 107.2, 118.35, 129.81, 141.42, 153.01, 164.41, 175.47, 186.01, 195.9, 205.01, 213.27, 220.6, 226.99, 232.43, 236.96, 240.63, 243.52, 245.72, 247.33, 248.45, 249.18, 249.62, 249.86, 249.96, 249.99, 2*250.0 ! [m]
! The distribution of vertical resolution for the target
! grid used for Eulerian-like coordinates. For example,
! in z-coordinate mode, the parameter is a list of level
! thicknesses (in m). In sigma-coordinate mode, the list
! is of non-dimensional fractions of the water column.
MIN_THICKNESS = 1.0E-06 ! [m] default = 0.001
! When regridding, this is the minimum layer
! thickness allowed.
REMAPPING_SCHEME = "PPM_H4" ! default = "PLM"
! This sets the reconstruction scheme used
! for vertical remapping for all variables.
! It can be one of the following schemes:
! PCM (1st-order accurate)
! PLM (2nd-order accurate)
! PPM_H4 (3rd-order accurate)
! PPM_IH4 (3rd-order accurate)
! PQM_IH4IH3 (4th-order accurate)
! PQM_IH6IH5 (5th-order accurate)
FATAL_CHECK_RECONSTRUCTIONS = False ! [Boolean] default = False
! If true, cell-by-cell reconstructions are checked for
! consistency and if non-monotonicty or an inconsistency is
! detected then a FATAL error is issued.
FATAL_CHECK_REMAPPING = False ! [Boolean] default = False
! If true, the results of remapping are checked for
! conservation and new extrema and if an inconsistency is
! detected then a FATAL error is issued.
REMAP_BOUND_INTERMEDIATE_VALUES = False ! [Boolean] default = False
! If true, the values on the intermediate grid used for remapping
! are forced to be bounded, which might not be the case due to
! round off.
REMAP_BOUNDARY_EXTRAP = False ! [Boolean] default = False
! If true, values at the interfaces of boundary cells are
! extrapolated instead of piecewise constant
REMAP_AFTER_INITIALIZATION = True ! [Boolean] default = True
! If true, applies regridding and remapping immediately after
! initialization so that the state is ALE consistent. This is a
! legacy step and should not be needed if the initialization is
! consistent with the coordinate mode.
REGRID_TIME_SCALE = 0.0 ! [s] default = 0.0
! The time-scale used in blending between the current (old) grid
! and the target (new) grid. A short time-scale favors the target
! grid (0. or anything less than DT_THERM) has no memory of the old
! grid. A very long time-scale makes the model more Lagrangian.
REGRID_FILTER_SHALLOW_DEPTH = 0.0 ! [m] default = 0.0
! The depth above which no time-filtering is applied. Above this depth
! final grid exactly matches the target (new) grid.
REGRID_FILTER_DEEP_DEPTH = 0.0 ! [m] default = 0.0
! The depth below which full time-filtering is applied with time-scale
! REGRID_TIME_SCALE. Between depths REGRID_FILTER_SHALLOW_DEPTH and
! REGRID_FILTER_SHALLOW_DEPTH the filter wieghts adopt a cubic profile.
! === module MOM_grid ===
! Parameters providing information about the lateral grid.
! === module MOM_state_initialization ===
INIT_LAYERS_FROM_Z_FILE = False ! [Boolean] default = False
! If true, intialize the layer thicknesses, temperatures,
! and salnities from a Z-space file on a latitude-
! longitude grid.
THICKNESS_CONFIG = "file" !
! A string that determines how the initial layer
! thicknesses are specified for a new run:
! file - read interface heights from the file specified
! thickness_file - read thicknesses from the file specified
! by (THICKNESS_FILE).
! coord - determined by ALE coordinate.
! uniform - uniform thickness layers evenly distributed
! between the surface and MAXIMUM_DEPTH.
! list - read a list of positive interface depths.
! DOME - use a slope and channel configuration for the
! DOME sill-overflow test case.
! ISOMIP - use a configuration for the
! ISOMIP test case.
! benchmark - use the benchmark test case thicknesses.
! Neverland - use the Neverland test case thicknesses.
! search - search a density profile for the interface
! densities. This is not yet implemented.
! circle_obcs - the circle_obcs test case is used.
! DOME2D - 2D version of DOME initialization.
! adjustment2d - 2D lock exchange thickness ICs.
! sloshing - sloshing gravity thickness ICs.
! seamount - no motion test with seamount ICs.
! dumbbell - sloshing channel ICs.
! soliton - Equatorial Rossby soliton.
! rossby_front - a mixed layer front in thermal wind balance.
! USER - call a user modified routine.
THICKNESS_FILE = "NWA_IC.nc" !
! The name of the thickness file.
ADJUST_THICKNESS = True ! [Boolean] default = False
! If true, all mass below the bottom removed if the
! topography is shallower than the thickness input file
! would indicate.
TS_CONFIG = "file" !
! A string that determines how the initial tempertures
! and salinities are specified for a new run:
! file - read velocities from the file specified
! by (TS_FILE).
! fit - find the temperatures that are consistent with
! the layer densities and salinity S_REF.
! TS_profile - use temperature and salinity profiles
! (read from TS_FILE) to set layer densities.
! benchmark - use the benchmark test case T & S.
! linear - linear in logical layer space.
! DOME2D - 2D DOME initialization.
! ISOMIP - ISOMIP initialization.
! adjustment2d - 2d lock exchange T/S ICs.
! sloshing - sloshing mode T/S ICs.
! seamount - no motion test with seamount ICs.
! dumbbell - sloshing channel ICs.
! rossby_front - a mixed layer front in thermal wind balance.
! SCM_ideal_hurr - used in the SCM idealized hurricane test.
! SCM_CVMix_tests - used in the SCM CVMix tests.
! USER - call a user modified routine.
TS_FILE = "NWA_IC.nc" !
! The initial condition file for temperature.
TEMP_IC_VAR = "temp" ! default = "PTEMP"
! The initial condition variable for potential temperature.
SALT_IC_VAR = "salt" ! default = "SALT"
! The initial condition variable for salinity.
SALT_FILE = "NWA_IC.nc" ! default = "IC.nc"
! The initial condition file for salinity.
VELOCITY_CONFIG = "zero" ! default = "zero"
! A string that determines how the initial velocities
! are specified for a new run:
! file - read velocities from the file specified
! by (VELOCITY_FILE).
! zero - the fluid is initially at rest.
! uniform - the flow is uniform (determined by
! parameters INITIAL_U_CONST and INITIAL_V_CONST).
! rossby_front - a mixed layer front in thermal wind balance.
! soliton - Equatorial Rossby soliton.
! USER - call a user modified routine.
CONVERT_THICKNESS_UNITS = False ! [Boolean] default = False
! If true, convert the thickness initial conditions from
! units of m to kg m-2 or vice versa, depending on whether
! BOUSSINESQ is defined. This does not apply if a restart
! file is read.
DEPRESS_INITIAL_SURFACE = False ! [Boolean] default = False
! If true, depress the initial surface to avoid huge
! tsunamis when a large surface pressure is applied.
TRIM_IC_FOR_P_SURF = False ! [Boolean] default = False
! If true, cuts way the top of the column for initial conditions
! at the depth where the hydrostatic presure matches the imposed
! surface pressure which is read from file.
REGRID_ACCELERATE_INIT = False ! [Boolean] default = False
! If true, runs REGRID_ACCELERATE_ITERATIONS iterations of the regridding
! algorithm to push the initial grid to be consistent with the initial
! condition. Useful only for state-based and iterative coordinates.
SPONGE = False ! [Boolean] default = False
! If true, sponges may be applied anywhere in the domain.
! The exact location and properties of those sponges are
! specified via SPONGE_CONFIG.
OBC_USER_CONFIG = "none" ! default = "none"
! A string that sets how the user code is invoked to set open
! boundary data:
! DOME - specified inflow on northern boundary
! dyed_channel - supercritical with dye on the inflow boundary
! dyed_obcs - circle_obcs with dyes on the open boundaries
! Kelvin - barotropic Kelvin wave forcing on the western boundary
! shelfwave - Flather with shelf wave forcing on western boundary
! supercritical - now only needed here for the allocations
! tidal_bay - Flather with tidal forcing on eastern boundary
! USER - user specified
! === module MOM_diag_mediator ===
NUM_DIAG_COORDS = 1 ! default = 1
! The number of diagnostic vertical coordinates to use.
! For each coordinate, an entry in DIAG_COORDS must be provided.
DIAG_COORDS = "z Z ZSTAR" ! default = "z Z ZSTAR"
! A list of string tuples associating diag_table modules to
! a coordinate definition used for diagnostics. Each string
! is of the form "MODULE_SUFFIX PARAMETER_SUFFIX COORDINATE_NAME".
DIAG_MISVAL = 1.0E+20 ! [not defined] default = 1.0E+20
! Set the default missing value to use for diagnostics.
DIAG_AS_CHKSUM = False ! [Boolean] default = False
! Instead of writing diagnostics to the diag manager, write
! a textfile containing the checksum (bitcount) of the array.
AVAILABLE_DIAGS_FILE = "available_diags.000000" ! default = "available_diags.000000"
! A file into which to write a list of all available
! ocean diagnostics that can be included in a diag_table.
DIAG_COORD_DEF_Z = "WOA09" ! default = "WOA09"
! Determines how to specify the coordinate
! resolution. Valid options are:
! PARAM - use the vector-parameter DIAG_COORD_RES_Z
! UNIFORM[:N] - uniformly distributed
! FILE:string - read from a file. The string specifies
! the filename and variable name, separated
! by a comma or space, e.g. FILE:lev.nc,dz
! or FILE:lev.nc,interfaces=zw
! WOA09[:N] - the WOA09 vertical grid (approximately)
! FNC1:string - FNC1:dz_min,H_total,power,precision
! HYBRID:string - read from a file. The string specifies
! the filename and two variable names, separated
! by a comma or space, for sigma-2 and dz. e.g.
! HYBRID:vgrid.nc,sigma2,dz
! === module MOM_MEKE ===
USE_MEKE = True ! [Boolean] default = False
! If true, turns on the MEKE scheme which calculates
! a sub-grid mesoscale eddy kinetic energy budget.
MEKE_DAMPING = 0.0 ! [s-1] default = 0.0
! The local depth-indepented MEKE dissipation rate.
MEKE_CD_SCALE = 0.0 ! [nondim] default = 0.0
! The ratio of the bottom eddy velocity to the column mean
! eddy velocity, i.e. sqrt(2*MEKE). This should be less than 1
! to account for the surface intensification of MEKE.
MEKE_CB = 25.0 ! [nondim] default = 25.0
! A coefficient in the expression for the ratio of bottom projected
! eddy energy and mean column energy (see Jansen et al. 2015).
MEKE_MIN_GAMMA2 = 1.0E-04 ! [nondim] default = 1.0E-04
! The minimum allowed value of gamma_b^2.
MEKE_CT = 50.0 ! [nondim] default = 50.0
! A coefficient in the expression for the ratio of barotropic
! eddy energy and mean column energy (see Jansen et al. 2015).
MEKE_GMCOEFF = 1.0 ! [nondim] default = -1.0
! The efficiency of the conversion of potential energy
! into MEKE by the thickness mixing parameterization.
! If MEKE_GMCOEFF is negative, this conversion is not
! used or calculated.
MEKE_FRCOEFF = -1.0 ! [nondim] default = -1.0
! The efficiency of the conversion of mean energy into
! MEKE. If MEKE_FRCOEFF is negative, this conversion
! is not used or calculated.
MEKE_BGSRC = 1.0E-13 ! [W kg-1] default = 0.0
! A background energy source for MEKE.
MEKE_KH = -1.0 ! [m2 s-1] default = -1.0
! A background lateral diffusivity of MEKE.
! Use a negative value to not apply lateral diffusion to MEKE.
MEKE_K4 = -1.0 ! [m4 s-1] default = -1.0
! A lateral bi-harmonic diffusivity of MEKE.
! Use a negative value to not apply bi-harmonic diffusion to MEKE.
MEKE_DTSCALE = 1.0 ! [nondim] default = 1.0
! A scaling factor to accelerate the time evolution of MEKE.
MEKE_KHCOEFF = 1.0 ! [nondim] default = 1.0
! A scaling factor in the expression for eddy diffusivity
! which is otherwise proportional to the MEKE velocity-
! scale times an eddy mixing-length. This factor
! must be >0 for MEKE to contribute to the thickness/
! and tracer diffusivity in the rest of the model.
MEKE_USCALE = 0.0 ! [m s-1] default = 0.0
! The background velocity that is combined with MEKE to
! calculate the bottom drag.
MEKE_VISC_DRAG = True ! [Boolean] default = True
! If true, use the vertvisc_type to calculate the bottom
! drag acting on MEKE.
MEKE_KHTH_FAC = 0.0 ! [nondim] default = 0.0
! A factor that maps MEKE%Kh to KhTh.
MEKE_KHTR_FAC = 0.0 ! [nondim] default = 0.0
! A factor that maps MEKE%Kh to KhTr.
MEKE_KHMEKE_FAC = 0.0 ! [nondim] default = 0.0
! A factor that maps MEKE%Kh to Kh for MEKE itself.
MEKE_OLD_LSCALE = False ! [Boolean] default = False
! If true, use the old formula for length scale which is
! a function of grid spacing and deformation radius.
MEKE_RD_MAX_SCALE = False ! [nondim] default = False
! If true, the length scale used by MEKE is the minimum of
! the deformation radius or grid-spacing. Only used if
! MEKE_OLD_LSCALE=True
MEKE_VISCOSITY_COEFF = 0.0 ! [nondim] default = 0.0
! If non-zero, is the scaling coefficient in the expression for
! viscosity used to parameterize lateral momentum mixing by
! unresolved eddies represented by MEKE. Can be negative to
! represent backscatter from the unresolved eddies.
MEKE_FIXED_MIXING_LENGTH = 0.0 ! [m] default = 0.0
! If positive, is a fixed length contribution to the expression
! for mixing length used in MEKE-derived diffusiviity.
MEKE_ALPHA_DEFORM = 0.0 ! [nondim] default = 0.0
! If positive, is a coefficient weighting the deformation scale
! in the expression for mixing length used in MEKE-derived diffusiviity.
MEKE_ALPHA_RHINES = 0.05 ! [nondim] default = 0.05
! If positive, is a coefficient weighting the Rhines scale
! in the expression for mixing length used in MEKE-derived diffusiviity.
MEKE_ALPHA_EADY = 0.05 ! [nondim] default = 0.05
! If positive, is a coefficient weighting the Eady length scale
! in the expression for mixing length used in MEKE-derived diffusiviity.
MEKE_ALPHA_FRICT = 0.0 ! [nondim] default = 0.0
! If positive, is a coefficient weighting the frictional arrest scale
! in the expression for mixing length used in MEKE-derived diffusiviity.
MEKE_ALPHA_GRID = 0.0 ! [nondim] default = 0.0
! If positive, is a coefficient weighting the grid-spacing as a scale
! in the expression for mixing length used in MEKE-derived diffusiviity.
MEKE_COLD_START = False ! [Boolean] default = False
! If true, initialize EKE to zero. Otherwise a local equilibrium solution
! is used as an initial condition for EKE.
MEKE_BACKSCAT_RO_C = 0.0 ! [nondim] default = 0.0
! The coefficient in the Rossby number function for scaling the buharmonic
! frictional energy source. Setting to non-zero enables the Rossby number function.
MEKE_BACKSCAT_RO_POW = 0.0 ! [nondim] default = 0.0
! The power in the Rossby number function for scaling the biharmomnic
! frictional energy source.
MEKE_ADVECTION_FACTOR = 0.0 ! [nondim] default = 0.0
! A scale factor in front of advection of eddy energy. Zero turns advection off.
! Using unity would be normal but other values could accomodate a mismatch
! between the advecting barotropic flow and the vertical structure of MEKE.
CDRAG = 0.003 ! [nondim] default = 0.003
! CDRAG is the drag coefficient relating the magnitude of
! the velocity field to the bottom stress.
! === module MOM_lateral_mixing_coeffs ===
USE_VARIABLE_MIXING = True ! [Boolean] default = False
! If true, the variable mixing code will be called. This
! allows diagnostics to be created even if the scheme is
! not used. If KHTR_SLOPE_CFF>0 or KhTh_Slope_Cff>0,
! this is set to true regardless of what is in the
! parameter file.
RESOLN_SCALED_KH = True ! [Boolean] default = False
! If true, the Laplacian lateral viscosity is scaled away
! when the first baroclinic deformation radius is well
! resolved.
RESOLN_SCALED_KHTH = True ! [Boolean] default = False
! If true, the interface depth diffusivity is scaled away
! when the first baroclinic deformation radius is well
! resolved.
RESOLN_SCALED_KHTR = True ! [Boolean] default = False
! If true, the epipycnal tracer diffusivity is scaled
! away when the first baroclinic deformation radius is
! well resolved.
RESOLN_USE_EBT = False ! [Boolean] default = False
! If true, uses the equivalent barotropic wave speed instead
! of first baroclinic wave for calculating the resolution fn.
KHTH_USE_EBT_STRUCT = False ! [Boolean] default = False
! If true, uses the equivalent barotropic structure
! as the vertical structure of thickness diffusivity.
KHTH_SLOPE_CFF = 0.0 ! [nondim] default = 0.0
! The nondimensional coefficient in the Visbeck formula
! for the interface depth diffusivity
KHTR_SLOPE_CFF = 0.25 ! [nondim] default = 0.0
! The nondimensional coefficient in the Visbeck formula
! for the epipycnal tracer diffusivity
USE_STORED_SLOPES = True ! [Boolean] default = False
! If true, the isopycnal slopes are calculated once and
! stored for re-use. This uses more memory but avoids calling
! the equation of state more times than should be necessary.
VISBECK_MAX_SLOPE = 0.0 ! [nondim] default = 0.0
! If non-zero, is an upper bound on slopes used in the
! Visbeck formula for diffusivity. This does not affect the
! isopycnal slope calculation used within thickness diffusion.
KD_SMOOTH = 1.0E-06 ! [not defined] default = 1.0E-06
! A diapycnal diffusivity that is used to interpolate
! more sensible values of T & S into thin layers.
VARMIX_KTOP = 2 ! [nondim] default = 2
! The layer number at which to start vertical integration
! of S*N for purposes of finding the Eady growth rate.
VISBECK_L_SCALE = 0.0 ! [m] default = 0.0
! The fixed length scale in the Visbeck formula.
KH_RES_SCALE_COEF = 1.0 ! [nondim] default = 1.0
! A coefficient that determines how KhTh is scaled away if
! RESOLN_SCALED_... is true, as
! F = 1 / (1 + (KH_RES_SCALE_COEF*Rd/dx)^KH_RES_FN_POWER).
KH_RES_FN_POWER = 100 ! [nondim] default = 2
! The power of dx/Ld in the Kh resolution function. Any
! positive integer may be used, although even integers
! are more efficient to calculate. Setting this greater
! than 100 results in a step-function being used.
VISC_RES_SCALE_COEF = 1.0 ! [nondim] default = 1.0
! A coefficient that determines how Kh is scaled away if
! RESOLN_SCALED_... is true, as
! F = 1 / (1 + (KH_RES_SCALE_COEF*Rd/dx)^KH_RES_FN_POWER).
! This function affects lateral viscosity, Kh, and not KhTh.
VISC_RES_FN_POWER = 100 ! [nondim] default = 100
! The power of dx/Ld in the Kh resolution function. Any
! positive integer may be used, although even integers
! are more efficient to calculate. Setting this greater
! than 100 results in a step-function being used.
! This function affects lateral viscosity, Kh, and not KhTh.
INTERPOLATE_RES_FN = False ! [Boolean] default = True
! If true, interpolate the resolution function to the
! velocity points from the thickness points; otherwise
! interpolate the wave speed and calculate the resolution
! function independently at each point.
USE_VISBECK_SLOPE_BUG = False ! [Boolean] default = False
! If true, then retain a legacy bug in the calculation of weights
! applied to isoneutral slopes. There was an erroneous k-indexing
! for layer thicknesses. In addition, masking at coastlines was not
! used which introduced potential restart issues. This flag will be
! deprecated in a future release.
GILL_EQUATORIAL_LD = True ! [Boolean] default = False
! If true, uses Gill's definition of the baroclinic
! equatorial deformation radius, otherwise, if false, use
! Pedlosky's definition. These definitions differ by a factor
! of 2 infront of the beta term in the denominator. Gill'sis the more appropriate definition.
! === module MOM_set_visc ===
BOTTOMDRAGLAW = True ! [Boolean] default = True
! If true, the bottom stress is calculated with a drag
! law of the form c_drag*|u|*u. The velocity magnitude
! may be an assumed value or it may be based on the
! actual velocity in the bottommost HBBL, depending on
! LINEAR_DRAG.
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.
LINEAR_DRAG = False ! [Boolean] default = False
! If LINEAR_DRAG and BOTTOMDRAGLAW are defined the drag
! law is cdrag*DRAG_BG_VEL*u.
DOUBLE_DIFFUSION = False ! [Boolean] default = False
! If true, increase diffusivitives for temperature or salt
! based on double-diffusive paramaterization from MOM4/KPP.
PRANDTL_TURB = 1.0 ! [nondim] default = 1.0
! The turbulent Prandtl number applied to shear
! instability.
DYNAMIC_VISCOUS_ML = False ! [Boolean] default = False
! If true, use a bulk Richardson number criterion to
! determine the mixed layer thickness for viscosity.
HBBL = 10.0 ! [m]
! The thickness of a bottom boundary layer with a
! viscosity of KVBBL 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.
DRAG_BG_VEL = 0.001 ! [m s-1] default = 0.0
! DRAG_BG_VEL is either the assumed bottom velocity (with
! LINEAR_DRAG) or an unresolved velocity that is
! combined with the resolved velocity to estimate the
! velocity magnitude. DRAG_BG_VEL is only used when
! BOTTOMDRAGLAW is defined.
BBL_USE_EOS = True ! [Boolean] default = False
! If true, use the equation of state in determining the
! properties of the bottom boundary layer. Otherwise use
! the layer target potential densities.
BBL_THICK_MIN = 0.1 ! [m] default = 0.0
! The minimum bottom boundary layer thickness that can be
! used with BOTTOMDRAGLAW. This might be
! Kv / (cdrag * drag_bg_vel) to give Kv as the minimum
! near-bottom viscosity.
HTBL_SHELF_MIN = 0.1 ! [m] default = 0.1
! The minimum top boundary layer thickness that can be
! used with BOTTOMDRAGLAW. This might be
! Kv / (cdrag * drag_bg_vel) to give Kv as the minimum
! near-top viscosity.
HTBL_SHELF = 10.0 ! [m] default = 10.0
! The thickness over which near-surface velocities are
! averaged for the drag law under an ice shelf. By
! default this is the same as HBBL
KV = 1.0E-04 ! [m2 s-1]
! The background kinematic viscosity in the interior.
! The molecular value, ~1e-6 m2 s-1, may be used.
KV_BBL_MIN = 1.0E-04 ! [m2 s-1] default = 1.0E-04
! The minimum viscosities in the bottom boundary layer.
KV_TBL_MIN = 1.0E-04 ! [m2 s-1] default = 1.0E-04
! The minimum viscosities in the top boundary layer.
SMAG_CONST_CHANNEL = 0.15 ! [nondim] default = 0.15
! The nondimensional Laplacian Smagorinsky constant used
! in calculating the channel drag if it is enabled. The
! default is to use the same value as SMAG_LAP_CONST if
! it is defined, or 0.15 if it is not. The value used is
! also 0.15 if the specified value is negative.
TIDES = False ! [Boolean] default = False
! If true, apply tidal momentum forcing.
BE = 0.6 ! [nondim] default = 0.6
! If SPLIT is true, BE determines the relative weighting
! of a 2nd-order Runga-Kutta baroclinic time stepping
! scheme (0.5) and a backward Euler scheme (1) that is
! used for the Coriolis and inertial terms. BE may be
! from 0.5 to 1, but instability may occur near 0.5.
! BE is also applicable if SPLIT is false and USE_RK2
! is true.
BEGW = 0.0 ! [nondim] default = 0.0
! If SPLIT is true, BEGW is a number from 0 to 1 that
! controls the extent to which the treatment of gravity
! waves is forward-backward (0) or simulated backward
! Euler (1). 0 is almost always used.
! If SPLIT is false and USE_RK2 is true, BEGW can be
! between 0 and 0.5 to damp gravity waves.
SPLIT_BOTTOM_STRESS = False ! [Boolean] default = False
! If true, provide the bottom stress calculated by the
! vertical viscosity to the barotropic solver.
BT_USE_LAYER_FLUXES = True ! [Boolean] default = True
! If true, use the summed layered fluxes plus an
! adjustment due to the change in the barotropic velocity
! in the barotropic continuity equation.
! === module MOM_continuity ===
CONTINUITY_SCHEME = "PPM" ! default = "PPM"
! CONTINUITY_SCHEME selects the discretization for the
! continuity solver. The only valid value currently is:
! PPM - use a positive-definite (or monotonic)
! piecewise parabolic reconstruction solver.
! === module MOM_continuity_PPM ===
MONOTONIC_CONTINUITY = False ! [Boolean] default = False
! If true, CONTINUITY_PPM uses the Colella and Woodward
! monotonic limiter. The default (false) is to use a
! simple positive definite limiter.
SIMPLE_2ND_PPM_CONTINUITY = False ! [Boolean] default = False
! If true, CONTINUITY_PPM uses a simple 2nd order
! (arithmetic mean) interpolation of the edge values.
! This may give better PV conservation propterties. While
! it formally reduces the accuracy of the continuity
! solver itself in the strongly advective limit, it does
! not reduce the overall order of accuracy of the dynamic
! core.
UPWIND_1ST_CONTINUITY = False ! [Boolean] default = False
! If true, CONTINUITY_PPM becomes a 1st-order upwind
! continuity solver. This scheme is highly diffusive
! but may be useful for debugging or in single-column
! mode where its minimal stencil is useful.
ETA_TOLERANCE = 1.0E-06 ! [m] default = 3.75E-09
! The tolerance for the differences between the
! barotropic and baroclinic estimates of the sea surface
! height due to the fluxes through each face. The total
! tolerance for SSH is 4 times this value. The default
! is 0.5*NK*ANGSTROM, and this should not be set less x
! than about 10^-15*MAXIMUM_DEPTH.
ETA_TOLERANCE_AUX = 0.001 ! [m] default = 1.0E-06
! The tolerance for free-surface height discrepancies
! between the barotropic solution and the sum of the
! layer thicknesses when calculating the auxiliary
! corrected velocities. By default, this is the same as
! ETA_TOLERANCE, but can be made larger for efficiency.
VELOCITY_TOLERANCE = 3.0E+08 ! [m s-1] default = 3.0E+08
! The tolerance for barotropic velocity discrepancies
! between the barotropic solution and the sum of the
! layer thicknesses.
CONT_PPM_AGGRESS_ADJUST = False ! [Boolean] default = False
! If true, allow the adjusted velocities to have a
! relative CFL change up to 0.5.