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C $Header: /u/gcmpack/MITgcm/pkg/kpp/KPP_PARAMS.h,v 1.14 2009/09/18 11:40:22 mlosch Exp $ |
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C $Name: $ |
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|
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C *==========================================================* |
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C | KPP_PARAMS.h |
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C | o Basic parameter header for KPP vertical mixing |
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C | parameterization. These parameters are initialized by |
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C | and/or read in from data.kpp file. |
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C *==========================================================* |
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|
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C Parameters used in kpp routine arguments (needed for compilation |
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C of kpp routines even if ALLOW_KPP is not defined) |
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C mdiff :: number of diffusivities for local arrays |
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C Nrm1, Nrp1, Nrp2 :: number of vertical levels |
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C imt :: array dimension for local arrays |
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|
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integer mdiff, Nrm1, Nrp1, Nrp2 |
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integer imt |
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parameter( mdiff = 3 ) |
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parameter( Nrm1 = Nr-1 ) |
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parameter( Nrp1 = Nr+1 ) |
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parameter( Nrp2 = Nr+2 ) |
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parameter( imt=(sNx+2*OLx)*(sNy+2*OLy) ) |
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|
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#ifdef ALLOW_KPP |
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|
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C Time invariant parameters initialized by subroutine kmixinit |
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C nzmax (nx,ny) :: Maximum number of wet levels in each column |
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C pMask :: Mask relating to Pressure/Tracer point grid. |
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C 0. if P point is on land. |
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C 1. if P point is in water. |
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C Note: use now maskC since pMask is identical to maskC |
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C zgrid (0:Nr+1) :: vertical levels of tracers (<=0) (m) |
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C hwide (0:Nr+1) :: layer thicknesses (>=0) (m) |
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C kpp_freq :: Re-computation frequency for KPP parameters (s) |
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C kpp_dumpFreq :: KPP dump frequency. (s) |
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C kpp_taveFreq :: KPP time-averaging frequency. (s) |
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|
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INTEGER nzmax ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, nSx, nSy ) |
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c _RL pMask ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nr, nSx, nSy ) |
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_RL zgrid ( 0:Nr+1 ) |
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_RL hwide ( 0:Nr+1 ) |
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_RL kpp_freq |
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_RL kpp_dumpFreq |
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_RL kpp_taveFreq |
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|
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COMMON /kpp_i/ nzmax |
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|
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COMMON /kpp_r1/ zgrid, hwide |
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|
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COMMON /kpp_r2/ kpp_freq, kpp_dumpFreq, kpp_taveFreq |
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|
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C----------------------------------------------------------------------- |
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C |
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C KPP flags and min/max permitted values for mixing parameters |
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C |
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C KPPwriteState :: if true, write KPP state to file |
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C minKPPhbl :: KPPhbl minimum value (m) |
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C KPP_ghatUseTotalDiffus :: |
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C if T : Compute the non-local term using |
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C the total vertical diffusivity ; |
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C if F (=default): use KPP vertical diffusivity |
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C Note: prior to checkpoint55h_post, was using the total Kz |
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C KPPuseDoubleDiff :: if TRUE, include double diffusive |
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C contributions |
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C LimitHblStable :: if TRUE (the default), limits the depth of the |
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C hbl under stable conditions. |
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C |
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C----------------------------------------------------------------------- |
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|
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LOGICAL KPPwriteState, KPP_ghatUseTotalDiffus |
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LOGICAL KPPuseDoubleDiff |
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LOGICAL LimitHblStable |
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COMMON /KPP_PARM_L/ |
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& KPPwriteState, KPP_ghatUseTotalDiffus, |
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& KPPuseDoubleDiff, LimitHblStable |
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|
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_RL minKPPhbl |
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COMMON /KPP_PARM_R/ minKPPhbl |
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|
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C====================== file "kmixcom.h" ======================= |
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C----------------------------------------------------------------------- |
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C Define various parameters and common blocks for KPP vertical- |
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C mixing scheme; used in "kppmix.F" subroutines. |
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C Constants are set in subroutine KPP_READPARMS. |
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C----------------------------------------------------------------------- |
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C |
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C----------------------------------------------------------------------- |
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C parameters for several subroutines |
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C |
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C epsln = 1.0e-20 |
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C phepsi = 1.0e-10 |
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C epsilon = nondimensional extent of the surface layer = 0.1 |
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C vonk = von Karmans constant = 0.4 |
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C dB_dz = maximum dB/dz in mixed layer hMix = 5.2e-5 s^-2 |
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C conc1,conam,concm,conc2,zetam,conas,concs,conc3,zetas |
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C = scalar coefficients |
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C----------------------------------------------------------------------- |
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|
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_RL epsln,phepsi,epsilon,vonk,dB_dz, |
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& conc1, |
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& conam,concm,conc2,zetam, |
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& conas,concs,conc3,zetas |
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|
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common /kmixcom/ epsln,phepsi,epsilon,vonk,dB_dz, |
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& conc1, |
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& conam,concm,conc2,zetam, |
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& conas,concs,conc3,zetas |
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|
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C----------------------------------------------------------------------- |
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C parameters for subroutine "bldepth" |
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C |
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C to compute depth of boundary layer: |
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C |
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C Ricr = critical bulk Richardson Number = 0.3 |
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C cekman = coefficient for ekman depth = 0.7 |
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C cmonob = coefficient for Monin-Obukhov depth = 1.0 |
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C concv = ratio of interior buoyancy frequency to |
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C buoyancy frequency at entrainment depth = 1.8 |
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C hbf = fraction of bounadry layer depth to |
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C which absorbed solar radiation |
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C contributes to surface buoyancy forcing = 1.0 |
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C Vtc = non-dimensional coefficient for velocity |
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C scale of turbulant velocity shear |
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C (=function of concv,concs,epsilon,vonk,Ricr) |
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C----------------------------------------------------------------------- |
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|
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_RL Ricr,cekman,cmonob,concv,Vtc |
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_RL hbf |
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common /kpp_bldepth1/ Ricr,cekman,cmonob,concv,Vtc |
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common /kpp_bldepth2/ hbf |
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C----------------------------------------------------------------------- |
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C parameters and common arrays for subroutines "kmixinit" |
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C and "wscale" |
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C |
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C to compute turbulent velocity scales: |
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C |
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C nni = number of values for zehat in the look up table |
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C nnj = number of values for ustar in the look up table |
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C |
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C wmt = lookup table for wm, the turbulent velocity scale |
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C for momentum |
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C wst = lookup table for ws, the turbulent velocity scale |
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C for scalars |
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C deltaz = delta zehat in table |
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C deltau = delta ustar in table |
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C zmin = minimum limit for zehat in table (m3/s3) |
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C zmax = maximum limit for zehat in table |
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C umin = minimum limit for ustar in table (m/s) |
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C umax = maximum limit for ustar in table |
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C----------------------------------------------------------------------- |
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|
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integer nni , nnj |
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parameter (nni = 890, nnj = 480) |
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|
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_RL wmt(0:nni+1,0:nnj+1), wst(0:nni+1,0:nnj+1) |
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_RL deltaz,deltau,zmin,zmax,umin,umax |
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common /kmixcws/ wmt, wst, |
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& deltaz,deltau,zmin,zmax,umin,umax |
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|
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C----------------------------------------------------------------------- |
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C parameters for subroutine "ri_iwmix" |
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C |
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C to compute vertical mixing coefficients below boundary layer: |
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C |
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C num_v_smooth_Ri = number of times Ri is vertically smoothed |
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C Riinfty = local Richardson Number limit for shear instability = 0.7 |
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C BVSQcon = Brunt-Vaisala squared (1/s^2) |
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C difm0 = viscosity max due to shear instability (m^2/s) |
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C difs0 = tracer diffusivity .. (m^2/s) |
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C dift0 = heat diffusivity .. (m^2/s) |
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C difmcon = viscosity due to convective instability (m^2/s) |
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C difscon = tracer diffusivity .. (m^2/s) |
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C diftcon = heat diffusivity .. (m^2/s) |
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C----------------------------------------------------------------------- |
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INTEGER num_v_smooth_Ri |
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COMMON /kmixcri_i/ num_v_smooth_Ri |
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|
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_RL Riinfty, BVSQcon |
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_RL difm0 , difs0 , dift0 |
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_RL difmcon, difscon, diftcon |
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COMMON /kmixcri_r/ Riinfty, BVSQcon, |
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& difm0, difs0, dift0, |
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& difmcon, difscon, diftcon |
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|
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C----------------------------------------------------------------------- |
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C parameters for subroutine "ddmix" |
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C |
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C to compute additional diffusivity due to double diffusion: |
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C |
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C Rrho0 = limit for double diffusive density ratio |
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C dsfmax = maximum diffusivity in case of salt fingering (m2/s) |
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C----------------------------------------------------------------------- |
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|
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_RL Rrho0, dsfmax |
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common /kmixcdd/ Rrho0, dsfmax |
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C----------------------------------------------------------------------- |
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C parameters for subroutine "blmix" |
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C |
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C to compute mixing within boundary layer: |
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C |
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C cstar = proportionality coefficient for nonlocal transport |
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C cg = non-dimensional coefficient for counter-gradient term |
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C----------------------------------------------------------------------- |
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_RL cstar, cg |
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common /kmixcbm/ cstar, cg |
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#endif /* ALLOW_KPP */ |
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|
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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