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1.8.16
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MOM6
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This control structure holds parameters for the MOM_energetic_PBL module.
Definition at line 35 of file MOM_energetic_PBL.F90.
Public variables and constants | |
| real | vonkar = 0.41 |
| The von Karman coefficient. This should be runtime, but because it is runtime in KPP and set to 0.4 it might change answers. | |
| real | omega |
| The Earth's rotation rate [T-1]. | |
| real | omega_frac |
| When setting the decay scale for turbulence, use this fraction of the absolute rotation rate blended with the local value of f, as sqrt((1-of)*f^2 + of*4*omega^2) [nondim]. | |
| real | nstar |
| The fraction of the TKE input to the mixed layer available to drive entrainment [nondim]. This quantity is the vertically integrated buoyancy production minus the vertically integrated dissipation of TKE produced by buoyancy. | |
| logical | use_mld_iteration =.false. |
| False to use old ePBL method. | |
| logical | mld_iteration_guess =.false. |
| False to default to guessing half the ocean depth for the iteration. | |
| integer | max_mld_its |
| The maximum number of iterations that can be used to find a self-consistent mixed layer depth with Use_MLD_iteration. | |
| real | mixlenexponent |
| Exponent in the mixing length shape-function. 1 is law-of-the-wall at top and bottom, 2 is more KPP like. | |
| real | mke_to_tke_effic |
| The efficiency with which mean kinetic energy released by mechanically forced entrainment of the mixed layer is converted to TKE [nondim]. | |
| real | ustar_min |
| A minimum value of ustar to avoid numerical problems [Z T-1 ~> m s-1]. If the value is small enough, this should not affect the solution. | |
| real | ekman_scale_coef |
| A nondimensional scaling factor controlling the inhibition of the diffusive length scale by rotation. Making this larger decreases the diffusivity in the planetary boundary layer. | |
| real | translay_scale |
| A scale for the mixing length in the transition layer at the edge of the boundary layer as a fraction of the boundary layer thickness. The default is 0, but a value of 0.1 might be better justified by observations. | |
| real | mld_tol |
| A tolerance for determining the boundary layer thickness when Use_MLD_iteration is true [Z ~> m]. | |
| real | min_mix_len |
| The minimum mixing length scale that will be used by ePBL [Z ~> m]. The default (0) does not set a minimum. | |
| integer | wt_scheme |
| An enumerated value indicating the method for finding the turbulent velocity scale. There are currently two options: wT_mwT_from_cRoot_TKE is the original (TKE_remaining)^1/3 wT_from_RH18 is the version described by Reichl and Hallberg, 2018. | |
| real | wstar_ustar_coef |
| A ratio relating the efficiency with which convectively released energy is converted to a turbulent velocity, relative to mechanically forced turbulent kinetic energy [nondim]. Making this larger increases the diffusivity. | |
| real | vstar_surf_fac |
| If (wT_scheme == wT_from_RH18) this is the proportionality coefficient between ustar and the surface mechanical contribution to vstar [nondim]. | |
| real | vstar_scale_fac |
| An overall nondimensional scaling factor for vstar times a unit conversion factor [Z s T-1 m-1 ~> nondim]. Making this larger increases the diffusivity. | |
| integer | mstar_scheme |
| An encoded integer to determine which formula is used to set mstar. | |
| logical | mstar_flatcap =.true. |
| Set false to use asymptotic mstar cap. | |
| real | mstar_cap |
| Since MSTAR is restoring undissipated energy to mixing, there must be a cap on how large it can be. This is definitely a function of latitude (Ekman limit), but will be taken as constant for now. | |
| real | tke_decay |
| The ratio of the natural Ekman depth to the TKE decay scale [nondim]. | |
| real | fixed_mstar |
| Mstar is the ratio of the friction velocity cubed to the TKE available to drive entrainment, nondimensional. This quantity is the vertically integrated shear production minus the vertically integrated dissipation of TKE produced by shear. This value is used if the option for using a fixed mstar is used. | |
| real | c_ek = 0.17 |
| MSTAR Coefficient in rotation limit for mstar_scheme=OM4. | |
| real | mstar_coef = 0.3 |
| MSTAR coefficient in rotation/stabilizing balance for mstar_scheme=OM4. | |
| real | rh18_mstar_cn1 |
| MSTAR_N coefficient 1 (outter-most coefficient for fit). Value of 0.275 in RH18. Increasing this coefficient increases mechanical mixing for all values of Hf/ust, but is most effective at low values (weakly developed OSBLs). | |
| real | rh18_mstar_cn2 |
| MSTAR_N coefficient 2 (coefficient outside of exponential decay). Value of 8.0 in RH18. Increasing this coefficient increases MSTAR for all values of HF/ust, with a consistent affect across a wide range of Hf/ust. | |
| real | rh18_mstar_cn3 |
| MSTAR_N coefficient 3 (exponential decay coefficient). Value of -5.0 in RH18. Increasing this increases how quickly the value of MSTAR decreases as Hf/ust increases. | |
| real | rh18_mstar_cs1 |
| MSTAR_S coefficient for RH18 in stabilizing limit. Value of 0.2 in RH18. | |
| real | rh18_mstar_cs2 |
| MSTAR_S exponent for RH18 in stabilizing limit. Value of 0.4 in RH18. | |
| real | mstar_convect_coef |
| Factor to reduce mstar when statically unstable. | |
| logical | use_lt = .false. |
| Flag for using LT in Energy calculation. | |
| integer | lt_enhance_form |
| Integer for Enhancement functional form (various options) | |
| real | lt_enhance_coef |
| Coefficient in fit for Langmuir Enhancment. | |
| real | lt_enhance_exp |
| Exponent in fit for Langmuir Enhancement. | |
| real | lac_mldoek |
| Coefficient for Langmuir number modification based on the ratio of the mixed layer depth over the Ekman depth. | |
| real | lac_mldoob_stab |
| Coefficient for Langmuir number modification based on the ratio of the mixed layer depth over the Obukov depth with stablizing forcing. | |
| real | lac_ekoob_stab |
| Coefficient for Langmuir number modification based on the ratio of the Ekman depth over the Obukov depth with stablizing forcing. | |
| real | lac_mldoob_un |
| Coefficient for Langmuir number modification based on the ratio of the mixed layer depth over the Obukov depth with destablizing forcing. | |
| real | lac_ekoob_un |
| Coefficient for Langmuir number modification based on the ratio of the Ekman depth over the Obukov depth with destablizing forcing. | |
| real | max_enhance_m = 5. |
| The maximum allowed LT enhancement to the mixing. | |
| type(time_type), pointer | time =>NULL() |
| A pointer to the ocean model's clock. | |
| logical | tke_diagnostics = .false. |
| If true, diagnostics of the TKE budget are being calculated. | |
| logical | answers_2018 |
| If true, use the order of arithmetic and expressions that recover the answers from the end of 2018. Otherwise, use updated and more robust forms of the same expressions. | |
| logical | orig_pe_calc |
| If true, the ePBL code uses the original form of the potential energy change code. Otherwise, it uses a newer version that can work with successive increments to the diffusivity in upward or downward passes. | |
| type(diag_ctrl), pointer | diag =>NULL() |
| A structure that is used to regulate the timing of diagnostic output. | |
| real, dimension(:,:), allocatable | ml_depth |
| The mixed layer depth determined by active mixing in ePBL [Z ~> m]. | |
| real, dimension(:,:), allocatable | diag_tke_wind |
| The wind source of TKE [kg m-3 Z3 T-3 ~> W m-2]. | |
| real, dimension(:,:), allocatable | diag_tke_mke |
| The resolved KE source of TKE [kg m-3 Z3 T-3 ~> W m-2]. | |
| real, dimension(:,:), allocatable | diag_tke_conv |
| The convective source of TKE [kg m-3 Z3 T-3 ~> W m-2]. | |
| real, dimension(:,:), allocatable | diag_tke_forcing |
| The TKE sink required to mix surface penetrating shortwave heating. | |
| real, dimension(:,:), allocatable | diag_tke_mech_decay |
| The decay of mechanical TKE [kg m-3 Z3 T-3 ~> W m-2]. | |
| real, dimension(:,:), allocatable | diag_tke_conv_decay |
| The decay of convective TKE [kg m-3 Z3 T-3 ~> W m-2]. | |
| real, dimension(:,:), allocatable | diag_tke_mixing |
| The work done by TKE to deepen the mixed layer [kg m-3 Z3 T-3 ~> W m-2]. | |
| real, dimension(:,:), allocatable | mstar_mix |
| Mstar used in EPBL [nondim]. | |
| real, dimension(:,:), allocatable | mstar_lt |
| Mstar due to Langmuir turbulence [nondim]. | |
| real, dimension(:,:), allocatable | la |
| Langmuir number [nondim]. | |
| real, dimension(:,:), allocatable | la_mod |
| Modified Langmuir number [nondim]. | |
| real, dimension(:,:,:), allocatable | velocity_scale |
| The velocity scale used in getting Kd [Z T-1 ~> m s-1]. | |
| real, dimension(:,:,:), allocatable | mixing_length |
| The length scale used in getting Kd [Z ~> m]. | |
| integer | id_ml_depth = -1 |
| Diagnostic IDs. | |
| integer | id_tke_wind = -1 |
| Diagnostic IDs. | |
| integer | id_tke_mixing = -1 |
| Diagnostic IDs. | |
| integer | id_tke_mke = -1 |
| Diagnostic IDs. | |
| integer | id_tke_conv = -1 |
| Diagnostic IDs. | |
| integer | id_tke_forcing = -1 |
| Diagnostic IDs. | |
| integer | id_tke_mech_decay = -1 |
| Diagnostic IDs. | |
| integer | id_tke_conv_decay = -1 |
| Diagnostic IDs. | |
| integer | id_mixing_length = -1 |
| Diagnostic IDs. | |
| integer | id_velocity_scale = -1 |
| Diagnostic IDs. | |
| integer | id_mstar_mix = -1 |
| Diagnostic IDs. | |
| integer | id_la_mod = -1 |
| Diagnostic IDs. | |
| integer | id_la = -1 |
| Diagnostic IDs. | |
| integer | id_mstar_lt = -1 |
| Diagnostic IDs. | |
1.8.16