MOM6
Public variables and constants | List of all members
mom_kappa_shear::kappa_shear_cs Type Reference

Detailed Description

This control structure holds the parameters that regulate shear mixing.

Definition at line 35 of file MOM_kappa_shear.F90.

Collaboration diagram for mom_kappa_shear::kappa_shear_cs:
[legend]

Public variables and constants

real rino_crit
 The critical shear Richardson number for shear-entrainment. The theoretical value is 0.25. The values found by Jackson et al. are 0.25-0.35.
 
real shearmix_rate
 A nondimensional rate scale for shear-driven entrainment. The value given by Jackson et al. is 0.085-0.089.
 
real fri_curvature
 A constant giving the curvature of the function of the Richardson number that relates shear to sources in the kappa equation [nondim]. The values found by Jackson et al. are -0.97 - -0.89.
 
real c_n
 The coefficient for the decay of TKE due to stratification (i.e. proportional to N*tke) [nondim]. The values found by Jackson et al. are 0.24-0.28.
 
real c_s
 The coefficient for the decay of TKE due to shear (i.e. proportional to |S|*tke) [nondim]. The values found by Jackson et al. are 0.14-0.12.
 
real lambda
 The coefficient for the buoyancy length scale in the kappa equation. Nondimensional. The values found by Jackson et al. are 0.82-0.81.
 
real lambda2_n_s
 The square of the ratio of the coefficients of the buoyancy and shear scales in the diffusivity equation, 0 to eliminate the shear scale. Nondim.
 
real tke_bg
 The background level of TKE [Z2 T-2 ~> m2 s-2].
 
real kappa_0
 The background diapycnal diffusivity [Z2 T-1 ~> m2 s-1].
 
real kappa_tol_err
 The fractional error in kappa that is tolerated.
 
real prandtl_turb
 Prandtl number used to convert Kd_shear into viscosity.
 
integer nkml
 The number of layers in the mixed layer, as treated in this routine. If the pieces of the mixed layer are not to be treated collectively, nkml is set to 1.
 
integer max_rino_it
 The maximum number of iterations that may be used to estimate the instantaneous shear-driven mixing.
 
integer max_ks_it
 The maximum number of iterations that may be used to estimate the time-averaged diffusivity.
 
logical ks_at_vertex
 If true, do the calculations of the shear-driven mixing at the cell vertices (i.e., the vorticity points).
 
logical eliminate_massless
 If true, massless layers are merged with neighboring massive layers in this calculation.
 
real vel_underflow
 Velocity components smaller than vel_underflow are set to 0 [Z T-1 ~> m s-1].
 
logical debug = .false.
 If true, write verbose debugging messages.
 
type(diag_ctrl), pointer diag => NULL()
 A structure that is used to regulate the timing of diagnostic output.
 
integer id_kd_shear = -1
 Diagnostic IDs.
 
integer id_tke = -1
 Diagnostic IDs.
 
integer id_ild2 = -1
 Diagnostic IDs.
 
integer id_dz_int = -1
 Diagnostic IDs.
 
The documentation for this type was generated from the following file: