[1239] | 1 | MODULE zdftke2 |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE zdftke2 *** |
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| 4 | !! Ocean physics: vertical mixing coefficient computed from the tke |
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| 5 | !! turbulent closure parameterization |
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| 6 | !!===================================================================== |
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| 7 | !! History : OPA ! 1991-03 (b. blanke) Original code |
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| 8 | !! 7.0 ! 1991-11 (G. Madec) bug fix |
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| 9 | !! 7.1 ! 1992-10 (G. Madec) new mixing length and eav |
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| 10 | !! 7.2 ! 1993-03 (M. Guyon) symetrical conditions |
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| 11 | !! 7.3 ! 1994-08 (G. Madec, M. Imbard) nn_pdl flag |
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| 12 | !! 7.5 ! 1996-01 (G. Madec) s-coordinates |
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| 13 | !! 8.0 ! 1997-07 (G. Madec) lbc |
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| 14 | !! 8.1 ! 1999-01 (E. Stretta) new option for the mixing length |
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| 15 | !! NEMO 1.0 ! 2002-06 (G. Madec) add zdf_tke2_init routine |
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| 16 | !! - ! 2002-08 (G. Madec) rn_cri and Free form, F90 |
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| 17 | !! - ! 2004-10 (C. Ethe ) 1D configuration |
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| 18 | !! 2.0 ! 2006-07 (S. Masson) distributed restart using iom |
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| 19 | !! 3.0 ! 2008-05 (C. Ethe, G.Madec) : update TKE physics: |
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| 20 | !! - tke penetration (wind steering) |
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| 21 | !! - suface condition for tke & mixing length |
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| 22 | !! - Langmuir cells |
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| 23 | !! - ! 2008-05 (J.-M. Molines, G. Madec) 2D form of avtb |
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| 24 | !! - ! 2008-06 (G. Madec) style + DOCTOR name for namelist parameters |
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| 25 | !! - ! 2008-12 (G. Reffray) stable discretization of the production term |
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| 26 | !!---------------------------------------------------------------------- |
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| 27 | #if defined key_zdftke2 || defined key_esopa |
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| 28 | !!---------------------------------------------------------------------- |
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| 29 | !! 'key_zdftke2' TKE vertical physics |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | !!---------------------------------------------------------------------- |
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| 32 | !! zdf_tke2 : update momentum and tracer Kz from a tke scheme |
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| 33 | !! zdf_tke2_init : initialization, namelist read, and parameters control |
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| 34 | !! tke2_rst : read/write tke restart in ocean restart file |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | USE oce ! ocean dynamics and active tracers |
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| 37 | USE dom_oce ! ocean space and time domain |
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| 38 | USE zdf_oce ! ocean vertical physics |
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| 39 | USE sbc_oce ! surface boundary condition: ocean |
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| 40 | USE phycst ! physical constants |
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| 41 | USE zdfmxl ! mixed layer |
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| 42 | USE restart ! only for lrst_oce |
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| 43 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 44 | USE prtctl ! Print control |
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| 45 | USE in_out_manager ! I/O manager |
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| 46 | USE iom ! I/O manager library |
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| 47 | |
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| 48 | IMPLICIT NONE |
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| 49 | PRIVATE |
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| 50 | |
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| 51 | PUBLIC zdf_tke2 ! routine called in step module |
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| 52 | |
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| 53 | LOGICAL , PUBLIC, PARAMETER :: lk_zdftke2 = .TRUE. !: TKE vertical mixing flag |
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| 54 | REAL(wp), PUBLIC :: eboost !: multiplicative coeff of the shear product. |
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| 55 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: en !: now turbulent kinetic energy |
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| 56 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: avmt !: now mixing coefficient of diffusion for TKE |
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| 57 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: dissl !: now mixing lenght of dissipation |
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| 58 | |
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| 59 | #if defined key_c1d |
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| 60 | ! !!! 1D cfg only |
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| 61 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: e_dis, e_mix !: dissipation and mixing turbulent lengh scales |
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| 62 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: e_pdl, e_ric !: prandl and local Richardson numbers |
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| 63 | #endif |
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| 64 | |
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| 65 | ! !!! ** Namelist namtke ** |
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| 66 | LOGICAL :: ln_rstke = .FALSE. ! =T restart with tke from a run without tke |
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| 67 | LOGICAL :: ln_mxl0 = .FALSE. ! mixing length scale surface value as function of wind stress or not |
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| 68 | LOGICAL :: ln_lc = .FALSE. ! Langmuir cells (LC) as a source term of TKE or not |
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| 69 | INTEGER :: nn_itke = 50 ! number of restart iterative loops |
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| 70 | INTEGER :: nn_mxl = 2 ! type of mixing length (=0/1/2/3) |
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| 71 | INTEGER :: nn_pdl = 1 ! Prandtl number or not (ratio avt/avm) (=0/1) |
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| 72 | INTEGER :: nn_ave = 1 ! horizontal average or not on avt, avmu, avmv (=0/1) |
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| 73 | INTEGER :: nn_avb = 0 ! constant or profile background on avt (=0/1) |
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| 74 | REAL(wp) :: rn_ediff = 0.1_wp ! coefficient for avt: avt=rn_ediff*mxl*sqrt(e) |
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| 75 | REAL(wp) :: rn_ediss = 0.7_wp ! coefficient of the Kolmogoroff dissipation |
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| 76 | REAL(wp) :: rn_ebb = 3.75_wp ! coefficient of the surface input of tke |
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| 77 | REAL(wp) :: rn_efave = 1._wp ! coefficient for ave : ave=rn_efave*avm |
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| 78 | REAL(wp) :: rn_emin = 0.7071e-6_wp ! minimum value of tke (m2/s2) |
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| 79 | REAL(wp) :: rn_emin0 = 1.e-4_wp ! surface minimum value of tke (m2/s2) |
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| 80 | REAL(wp) :: rn_cri = 2._wp / 9._wp ! critic Richardson number |
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| 81 | INTEGER :: nn_havtb = 1 ! horizontal shape or not for avtb (=0/1) |
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| 82 | INTEGER :: nn_etau = 0 ! type of depth penetration of surface tke (=0/1/2) |
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| 83 | INTEGER :: nn_htau = 0 ! type of tke profile of penetration (=0/1/2) |
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| 84 | REAL(wp) :: rn_lmin0 = 0.4_wp ! surface min value of mixing length |
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[1268] | 85 | REAL(wp) :: rn_lmin = 0.1_wp ! interior min value of mixing length |
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[1239] | 86 | REAL(wp) :: rn_efr = 1.0_wp ! fraction of TKE surface value which penetrates in the ocean |
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| 87 | REAL(wp) :: rn_lc = 0.15_wp ! coef to compute vertical velocity of Langmuir cells |
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| 88 | |
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| 89 | REAL(wp), DIMENSION (jpi,jpj) :: avtb_2d ! set in tke2_init, for other modif than ice |
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| 90 | |
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| 91 | !! * Substitutions |
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| 92 | # include "domzgr_substitute.h90" |
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| 93 | # include "vectopt_loop_substitute.h90" |
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| 94 | !!---------------------------------------------------------------------- |
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| 95 | !! NEMO/OPA 3.0 , LOCEAN-IPSL (2008) |
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| 96 | !! $Id: zdftke2.F90 1201 2008-09-24 13:24:21Z rblod $ |
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| 97 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 98 | !!---------------------------------------------------------------------- |
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| 99 | |
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| 100 | CONTAINS |
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| 101 | |
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| 102 | SUBROUTINE zdf_tke2( kt ) |
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| 103 | !!---------------------------------------------------------------------- |
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| 104 | !! *** ROUTINE zdf_tke2 *** |
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| 105 | !! |
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| 106 | !! ** Purpose : Compute the vertical eddy viscosity and diffusivity |
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| 107 | !! coefficients using a 1.5 turbulent closure scheme. |
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| 108 | !! |
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| 109 | !! ** Method : The time evolution of the turbulent kinetic energy |
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| 110 | !! (tke) is computed from a prognostic equation : |
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| 111 | !! d(en)/dt = eboost eav (d(u)/dz)**2 ! shear production |
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| 112 | !! + d( rn_efave eav d(en)/dz )/dz ! diffusion of tke |
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| 113 | !! + grav/rau0 pdl eav d(rau)/dz ! stratif. destruc. |
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| 114 | !! - rn_ediss / emxl en**(2/3) ! dissipation |
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| 115 | !! with the boundary conditions: |
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| 116 | !! surface: en = max( rn_emin0, rn_ebb sqrt(utau^2 + vtau^2) ) |
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| 117 | !! bottom : en = rn_emin |
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| 118 | !! -1- The dissipation and mixing turbulent lengh scales are computed |
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| 119 | !! from the usual diagnostic buoyancy length scale: |
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| 120 | !! mxl= sqrt(2*en)/N where N is the brunt-vaisala frequency |
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| 121 | !! with mxl = rn_lmin at the bottom minimum value of 0.4 |
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| 122 | !! Four cases : |
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| 123 | !! nn_mxl=0 : mxl bounded by the distance to surface and bottom. |
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| 124 | !! zmxld = zmxlm = mxl |
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| 125 | !! nn_mxl=1 : mxl bounded by the vertical scale factor. |
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| 126 | !! zmxld = zmxlm = mxl |
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| 127 | !! nn_mxl=2 : mxl bounded such that the vertical derivative of mxl |
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| 128 | !! is less than 1 (|d/dz(xml)|<1). |
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| 129 | !! zmxld = zmxlm = mxl |
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| 130 | !! nn_mxl=3 : lup = mxl bounded using |d/dz(xml)|<1 from the surface |
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| 131 | !! to the bottom |
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| 132 | !! ldown = mxl bounded using |d/dz(xml)|<1 from the bottom |
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| 133 | !! to the surface |
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| 134 | !! zmxld = sqrt (lup*ldown) ; zmxlm = min(lup,ldown) |
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| 135 | !! -2- Compute the now Turbulent kinetic energy. The time differencing |
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| 136 | !! is implicit for vertical diffusion term, linearized for kolmo- |
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| 137 | !! goroff dissipation term, and explicit forward for both buoyancy |
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| 138 | !! and dynamic production terms. Thus a tridiagonal linear system is |
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| 139 | !! solved. |
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| 140 | !! Note that - the shear production is multiplied by eboost in order |
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| 141 | !! to set the critic richardson number to rn_cri (namelist parameter) |
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| 142 | !! - the destruction by stratification term is multiplied |
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| 143 | !! by the Prandtl number (defined by an empirical funtion of the local |
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| 144 | !! Richardson number) if nn_pdl=1 (namelist parameter) |
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| 145 | !! coefficient (zesh2): |
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| 146 | !! -3- Compute the now vertical eddy vicosity and diffusivity |
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| 147 | !! coefficients from en (before the time stepping) and zmxlm: |
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| 148 | !! avm = max( avtb, rn_ediff*zmxlm*en^1/2 ) |
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| 149 | !! avt = max( avmb, pdl*avm ) (pdl=1 if nn_pdl=0) |
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| 150 | !! eav = max( avmb, avm ) |
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| 151 | !! avt and avm are horizontally averaged to avoid numerical insta- |
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| 152 | !! bilities. |
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| 153 | !! N.B. The computation is done from jk=2 to jpkm1 except for |
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| 154 | !! en. Surface value of avt avmu avmv are set once a time to |
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| 155 | !! their background value in routine zdf_tke2_init. |
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| 156 | !! |
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| 157 | !! ** Action : compute en (now turbulent kinetic energy) |
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| 158 | !! update avt, avmu, avmv (before vertical eddy coef.) |
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| 159 | !! |
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| 160 | !! References : Gaspar et al., JGR, 1990, |
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| 161 | !! Blanke and Delecluse, JPO, 1991 |
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| 162 | !! Mellor and Blumberg, JPO 2004 |
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| 163 | !! Axell, JGR, 2002 |
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| 164 | !!---------------------------------------------------------------------- |
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| 165 | |
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| 166 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 167 | |
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| 168 | IF( kt == nit000 ) THEN |
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| 169 | CALL zdf_tke2_init ! Initialization (first time-step only) |
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| 170 | IF( .NOT. ln_rstart ) CALL tke_tke( kt ) |
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| 171 | CALL tke_mlmc |
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| 172 | ELSE |
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| 173 | CALL tke_tke( kt ) |
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| 174 | IF( kt /= nitend+1 ) CALL tke_mlmc |
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| 175 | IF( lrst_oce ) CALL tke2_rst( kt, 'WRITE' ) ! write en in restart file |
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| 176 | ENDIF |
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| 177 | |
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| 178 | END SUBROUTINE zdf_tke2 |
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| 179 | |
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| 180 | SUBROUTINE tke_tke( kt ) |
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| 181 | !!---------------------------------------------------------------------- |
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| 182 | !! Now Turbulent kinetic energy (output in en) |
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| 183 | !! --------------------------------------------------------------------- |
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| 184 | !! Surface boundary condition for TKE |
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| 185 | !! Resolution of a tridiagonal linear system by a "methode de chasse" |
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| 186 | !! computation from level 2 to jpkm1 (e(1) computed and e(jpk)=0 ). |
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| 187 | !! avmt represents the turbulent coefficient of the TKE |
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| 188 | !!---------------------------------------------------------------------- |
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| 189 | USE oce, zwd => ua ! use ua as workspace |
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| 190 | USE oce, zdiag1 => va ! use va as workspace |
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| 191 | USE oce, zdiag2 => ta ! use ta as workspace |
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| 192 | USE oce, ztkelc => sa ! use sa as workspace |
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| 193 | ! |
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| 194 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 195 | ! |
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| 196 | INTEGER :: ji, jj, jk ! dummy loop arguments |
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| 197 | REAL(wp) :: zbbrau, zesurf, zesh2 ! temporary scalars |
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| 198 | REAL(wp) :: zfact1, ztx2, zdku ! - - |
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| 199 | REAL(wp) :: zfact2, zty2, zdkv ! - - |
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| 200 | REAL(wp) :: zfact3, zcoef, zcof ! - - |
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| 201 | REAL(wp) :: zus, zwlc, zind ! - - |
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| 202 | INTEGER , DIMENSION(jpi,jpj) :: imlc ! 2D workspace |
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| 203 | REAL(wp), DIMENSION(jpi,jpj) :: zhtau ! - - |
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| 204 | REAL(wp), DIMENSION(jpi,jpj) :: zhlc ! - - |
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| 205 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpelc ! 3D workspace |
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| 206 | !!-------------------------------------------------------------------- |
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| 207 | ! ! Local constant initialization |
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| 208 | zbbrau = .5 * rn_ebb / rau0 |
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| 209 | zfact1 = -.5 * rdt * rn_efave |
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| 210 | zfact2 = 1.5 * rdt * rn_ediss |
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| 211 | zfact3 = 0.5 * rdt * rn_ediss |
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| 212 | |
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| 213 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 214 | ! Langmuir circulation source term |
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| 215 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 216 | IF( ln_lc ) THEN |
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| 217 | ! |
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| 218 | ! Computation of total energy produce by LC : cumulative sum over jk |
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| 219 | zpelc(:,:,1) = MAX( rn2(:,:,1), 0. ) * fsdepw(:,:,1) * fse3w(:,:,1) |
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| 220 | DO jk = 2, jpk |
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| 221 | zpelc(:,:,jk) = zpelc(:,:,jk-1) + MAX( rn2(:,:,jk), 0. ) * fsdepw(:,:,jk) * fse3w(:,:,jk) |
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| 222 | END DO |
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| 223 | ! |
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| 224 | ! Computation of finite Langmuir Circulation depth |
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| 225 | ! Initialization to the number of w ocean point mbathy |
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| 226 | imlc(:,:) = mbathy(:,:) |
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| 227 | DO jk = jpkm1, 2, -1 |
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| 228 | DO jj = 1, jpj |
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| 229 | DO ji = 1, jpi |
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| 230 | ! Last w-level at which zpelc>=0.5*us*us with us=0.016*wind(starting from jpk-1) |
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| 231 | zus = 0.000128 * wndm(ji,jj) * wndm(ji,jj) |
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| 232 | IF( zpelc(ji,jj,jk) > zus ) imlc(ji,jj) = jk |
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| 233 | END DO |
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| 234 | END DO |
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| 235 | END DO |
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| 236 | ! |
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| 237 | ! finite LC depth |
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| 238 | DO jj = 1, jpj |
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| 239 | DO ji = 1, jpi |
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| 240 | zhlc(ji,jj) = fsdepw(ji,jj,imlc(ji,jj)) |
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| 241 | END DO |
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| 242 | END DO |
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| 243 | ! |
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| 244 | # if defined key_c1d |
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| 245 | hlc(:,:) = zhlc(:,:) * tmask(:,:,1) ! c1d configuration: save finite Langmuir Circulation depth |
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| 246 | # endif |
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| 247 | ! |
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| 248 | ! TKE Langmuir circulation source term |
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| 249 | !CDIR NOVERRCHK |
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| 250 | DO jk = 2, jpkm1 |
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| 251 | !CDIR NOVERRCHK |
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| 252 | DO jj = 2, jpjm1 |
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| 253 | !CDIR NOVERRCHK |
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| 254 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 255 | ! Stokes drift |
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| 256 | zus = 0.016 * wndm(ji,jj) |
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| 257 | ! computation of vertical velocity due to LC |
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| 258 | zind = 0.5 - SIGN( 0.5, fsdepw(ji,jj,jk) - zhlc(ji,jj) ) |
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| 259 | zwlc = zind * rn_lc * zus * SIN( rpi * fsdepw(ji,jj,jk) / zhlc(ji,jj) ) |
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| 260 | ! TKE Langmuir circulation source term |
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| 261 | ztkelc(ji,jj,jk) = ( zwlc * zwlc * zwlc ) / zhlc(ji,jj) |
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| 262 | END DO |
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| 263 | END DO |
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| 264 | END DO |
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| 265 | ! |
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| 266 | ENDIF |
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| 267 | |
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| 268 | ! Surface boundary condition on tke |
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| 269 | ! ------------------------------------------------- |
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| 270 | ! en(1) = rn_ebb sqrt(utau^2+vtau^2) / rau0 (min value rn_emin0) |
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| 271 | !CDIR NOVERRCHK |
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| 272 | DO jj = 2, jpjm1 |
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| 273 | !CDIR NOVERRCHK |
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| 274 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 275 | ztx2 = utau(ji-1,jj ) + utau(ji,jj) |
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| 276 | zty2 = vtau(ji ,jj-1) + vtau(ji,jj) |
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| 277 | zesurf = zbbrau * SQRT( ztx2 * ztx2 + zty2 * zty2 ) |
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| 278 | en (ji,jj,1) = MAX( zesurf, rn_emin0 ) * tmask(ji,jj,1) |
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| 279 | END DO |
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| 280 | END DO |
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| 281 | |
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| 282 | ! Preliminary computing |
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| 283 | DO jk = 2, jpkm1 |
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| 284 | DO jj = 2, jpjm1 |
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| 285 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 286 | avmu(ji,jj,jk) = avmu(ji,jj,jk) * ( un(ji,jj,jk-1) - un(ji,jj,jk) ) * & |
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| 287 | & ( ub(ji,jj,jk-1) - ub(ji,jj,jk) ) |
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| 288 | avmv(ji,jj,jk) = avmv(ji,jj,jk) * ( vn(ji,jj,jk-1) - vn(ji,jj,jk) ) * & |
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| 289 | & ( vb(ji,jj,jk-1) - vb(ji,jj,jk) ) |
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| 290 | ENDDO |
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| 291 | ENDDO |
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| 292 | ENDDO |
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| 293 | |
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| 294 | ! Lateral boundary conditions (avmu,avmv) (sign unchanged) |
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| 295 | CALL lbc_lnk( avmu, 'U', 1. ) ; CALL lbc_lnk( avmv, 'V', 1. ) |
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| 296 | |
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| 297 | ! Now Turbulent kinetic energy (output in en) |
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| 298 | ! ------------------------------- |
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| 299 | ! Resolution of a tridiagonal linear system by a "methode de chasse" |
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| 300 | ! computation from level 2 to jpkm1 (e(1) already computed and e(jpk)=0 ). |
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| 301 | ! zwd : diagonal zdiag1 : upper diagonal zdiag2 : lower diagonal |
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| 302 | ! Warning : after this step, en : right hand side of the matrix |
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| 303 | DO jk = 2, jpkm1 |
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| 304 | DO jj = 2, jpjm1 |
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| 305 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 306 | ! ! shear prod. - stratif. destruction |
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| 307 | zcoef = 0.5 / ( fse3w(ji,jj,jk) * fse3w(ji,jj,jk) ) |
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| 308 | ! shear |
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| 309 | zdku = zcoef * ( avmu(ji-1,jj ,jk) + avmu(ji,jj,jk) ) ! shear |
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| 310 | zdkv = zcoef * ( avmv(ji ,jj-1,jk) + avmv(ji,jj,jk) ) |
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| 311 | zesh2 = eboost * ( zdku + zdkv ) - avt(ji,jj,jk) * rn2(ji,jj,jk) ! coefficient (zesh2) |
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| 312 | ! |
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| 313 | ! ! Matrix |
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| 314 | zcof = zfact1 * tmask(ji,jj,jk) |
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| 315 | ! ! lower diagonal |
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| 316 | zdiag2(ji,jj,jk) = zcof * ( avmt (ji,jj,jk ) + avmt (ji,jj,jk-1) ) & |
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| 317 | & / ( fse3t(ji,jj,jk-1) * fse3w(ji,jj,jk ) ) |
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| 318 | ! ! upper diagonal |
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| 319 | zdiag1(ji,jj,jk) = zcof * ( avmt (ji,jj,jk+1) + avmt (ji,jj,jk ) ) & |
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| 320 | & / ( fse3t(ji,jj,jk ) * fse3w(ji,jj,jk) ) |
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| 321 | ! ! diagonal |
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| 322 | zwd(ji,jj,jk) = 1. - zdiag2(ji,jj,jk) - zdiag1(ji,jj,jk) + zfact2 * dissl(ji,jj,jk) * tmask(ji,jj,jk) |
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| 323 | ! |
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| 324 | ! ! right hand side in en |
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| 325 | IF( .NOT. ln_lc ) THEN ! No Langmuir cells |
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| 326 | en(ji,jj,jk) = en(ji,jj,jk) + zfact3 * dissl (ji,jj,jk) * en(ji,jj,jk) * tmask(ji,jj,jk) & |
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| 327 | & + rdt * zesh2 * tmask(ji,jj,jk) |
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| 328 | ELSE ! Langmuir cell source term |
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| 329 | en(ji,jj,jk) = en(ji,jj,jk) + zfact3 * dissl (ji,jj,jk) * en(ji,jj,jk) * tmask(ji,jj,jk) & |
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| 330 | & + rdt * zesh2 * tmask(ji,jj,jk) & |
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| 331 | & + rdt * ztkelc(ji,jj,jk) * tmask(ji,jj,jk) |
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| 332 | ENDIF |
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| 333 | END DO |
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| 334 | END DO |
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| 335 | END DO |
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| 336 | ! Matrix inversion from level 2 (tke prescribed at level 1) |
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| 337 | !!-------------------------------- |
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| 338 | DO jk = 3, jpkm1 ! First recurrence : Dk = Dk - Lk * Uk-1 / Dk-1 |
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| 339 | DO jj = 2, jpjm1 |
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| 340 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 341 | zwd(ji,jj,jk) = zwd(ji,jj,jk) - zdiag2(ji,jj,jk) * zdiag1(ji,jj,jk-1) / zwd(ji,jj,jk-1) |
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| 342 | END DO |
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| 343 | END DO |
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| 344 | END DO |
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| 345 | DO jj = 2, jpjm1 ! Second recurrence : Lk = RHSk - Lk / Dk-1 * Lk-1 |
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| 346 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 347 | zdiag2(ji,jj,2) = en(ji,jj,2) - zdiag2(ji,jj,2) * en(ji,jj,1) ! Surface boudary conditions on tke |
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| 348 | END DO |
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| 349 | END DO |
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| 350 | DO jk = 3, jpkm1 |
---|
| 351 | DO jj = 2, jpjm1 |
---|
| 352 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 353 | zdiag2(ji,jj,jk) = en(ji,jj,jk) - zdiag2(ji,jj,jk) / zwd(ji,jj,jk-1) *zdiag2(ji,jj,jk-1) |
---|
| 354 | END DO |
---|
| 355 | END DO |
---|
| 356 | END DO |
---|
| 357 | DO jj = 2, jpjm1 ! thrid recurrence : Ek = ( Lk - Uk * Ek+1 ) / Dk |
---|
| 358 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 359 | en(ji,jj,jpkm1) = zdiag2(ji,jj,jpkm1) / zwd(ji,jj,jpkm1) |
---|
| 360 | END DO |
---|
| 361 | END DO |
---|
| 362 | DO jk = jpk-2, 2, -1 |
---|
| 363 | DO jj = 2, jpjm1 |
---|
| 364 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 365 | en(ji,jj,jk) = ( zdiag2(ji,jj,jk) - zdiag1(ji,jj,jk) * en(ji,jj,jk+1) ) / zwd(ji,jj,jk) |
---|
| 366 | END DO |
---|
| 367 | END DO |
---|
| 368 | END DO |
---|
| 369 | DO jk = 2, jpkm1 ! set the minimum value of tke |
---|
| 370 | DO jj = 2, jpjm1 |
---|
| 371 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 372 | en(ji,jj,jk) = MAX( en(ji,jj,jk), rn_emin ) * tmask(ji,jj,jk) |
---|
| 373 | END DO |
---|
| 374 | END DO |
---|
| 375 | END DO |
---|
| 376 | |
---|
| 377 | ! 5. Add extra TKE due to surface and internal wave breaking (nn_etau /= 0) |
---|
| 378 | !!---------------------------------------------------------- |
---|
| 379 | IF( nn_etau /= 0 ) THEN ! extra tke : en = en + rn_efr * en(1) * exp( -z/zhtau ) |
---|
| 380 | ! |
---|
| 381 | SELECT CASE( nn_htau ) ! Choice of the depth of penetration |
---|
| 382 | CASE( 0 ) ! constant depth penetration (here 10 meters) |
---|
| 383 | DO jj = 2, jpjm1 |
---|
| 384 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 385 | zhtau(ji,jj) = 10. |
---|
| 386 | END DO |
---|
| 387 | END DO |
---|
| 388 | CASE( 1 ) ! meridional profile 1 |
---|
| 389 | DO jj = 2, jpjm1 ! ( 5m in the tropics to a maximum of 40 m at high lat.) |
---|
| 390 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 391 | zhtau(ji,jj) = MAX( 5., MIN( 40., 60.*ABS( SIN( rpi/180. * gphit(ji,jj) ) ) ) ) |
---|
| 392 | END DO |
---|
| 393 | END DO |
---|
| 394 | CASE( 2 ) ! meridional profile 2 |
---|
| 395 | DO jj = 2, jpjm1 ! ( 5m in the tropics to a maximum of 60 m at high lat.) |
---|
| 396 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 397 | zhtau(ji,jj) = MAX( 5.,6./4.* MIN( 40., 60.*ABS( SIN( rpi/180. * gphit(ji,jj) ) ) ) ) |
---|
| 398 | END DO |
---|
| 399 | END DO |
---|
| 400 | END SELECT |
---|
| 401 | ! |
---|
| 402 | IF( nn_etau == 1 ) THEN ! extra term throughout the water column |
---|
| 403 | DO jk = 2, jpkm1 |
---|
| 404 | DO jj = 2, jpjm1 |
---|
| 405 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 406 | en(ji,jj,jk) = en(ji,jj,jk) & |
---|
| 407 | & + rn_efr * en(ji,jj,1)*EXP( -fsdepw(ji,jj,jk) / zhtau(ji,jj) ) & |
---|
| 408 | & * ( 1.e0 - fr_i(ji,jj) ) * tmask(ji,jj,jk) |
---|
| 409 | END DO |
---|
| 410 | END DO |
---|
| 411 | END DO |
---|
| 412 | ELSEIF( nn_etau == 2 ) THEN ! extra term only at the base of the mixed layer |
---|
| 413 | DO jj = 2, jpjm1 |
---|
| 414 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 415 | jk = nmln(ji,jj) |
---|
| 416 | en(ji,jj,jk) = en(ji,jj,jk) & |
---|
| 417 | & + rn_efr * en(ji,jj,1)*EXP( -fsdepw(ji,jj,jk) / zhtau(ji,jj) ) & |
---|
| 418 | & * ( 1.e0 - fr_i(ji,jj) ) * tmask(ji,jj,jk) |
---|
| 419 | END DO |
---|
| 420 | END DO |
---|
| 421 | ENDIF |
---|
| 422 | ! |
---|
| 423 | ENDIF |
---|
| 424 | ! Lateral boundary conditions (sign unchanged) |
---|
| 425 | CALL lbc_lnk( en, 'W', 1. ) |
---|
| 426 | |
---|
| 427 | END SUBROUTINE tke_tke |
---|
| 428 | |
---|
| 429 | SUBROUTINE tke_mlmc |
---|
| 430 | !!---------------------------------------------------------------------- |
---|
| 431 | !! |
---|
| 432 | !!---------------------------------------------------------------------- |
---|
| 433 | USE oce, zmpdl => ua ! use ua as workspace |
---|
| 434 | USE oce, zmxlm => va ! use va as workspace |
---|
| 435 | USE oce, zmxld => ta ! use ta as workspace |
---|
| 436 | USE oce, visco => sa ! use sa as workspace |
---|
| 437 | ! |
---|
| 438 | INTEGER :: ji, jj, jk ! dummy loop arguments |
---|
| 439 | REAL(wp) :: zbbrau, zrn2, zraug ! temporary scalars |
---|
| 440 | REAL(wp) :: zfact1, ztx2, zdku ! - - |
---|
| 441 | REAL(wp) :: zfact2, zty2, zdkv ! - - |
---|
| 442 | REAL(wp) :: zfact3, zcoef, zav ! - - |
---|
| 443 | REAL(wp) :: zpdl, zri, zsqen ! - - |
---|
| 444 | REAL(wp) :: zemxl, zemlm, zemlp ! - - |
---|
| 445 | !!-------------------------------------------------------------------- |
---|
| 446 | |
---|
| 447 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
| 448 | ! Mixing length |
---|
| 449 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
| 450 | |
---|
| 451 | ! Buoyancy length scale: l=sqrt(2*e/n**2) |
---|
| 452 | ! --------------------- |
---|
[1268] | 453 | IF( ln_mxl0 ) THEN ! surface mixing length = F(stress) : l=vkarmn*2.e5*sqrt(utau^2 + vtau^2)/(rau0*g) |
---|
[1239] | 454 | !!gm this should be useless |
---|
| 455 | zmxlm(:,:,1) = 0.e0 |
---|
| 456 | !!gm end |
---|
[1268] | 457 | zraug = 0.5 * vkarmn * 2.e5 / ( rau0 * grav ) |
---|
[1239] | 458 | DO jj = 2, jpjm1 |
---|
| 459 | !CDIR NOVERRCHK |
---|
| 460 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 461 | ztx2 = utau(ji-1,jj ) + utau(ji,jj) |
---|
| 462 | zty2 = vtau(ji ,jj-1) + vtau(ji,jj) |
---|
| 463 | zmxlm(ji,jj,1) = MAX( rn_lmin0, zraug * SQRT( ztx2 * ztx2 + zty2 * zty2 ) ) |
---|
| 464 | END DO |
---|
| 465 | END DO |
---|
| 466 | ELSE ! surface set to the minimum value |
---|
| 467 | zmxlm(:,:,1) = rn_lmin0 |
---|
| 468 | ENDIF |
---|
| 469 | zmxlm(:,:,jpk) = rn_lmin ! bottom set to the interior minium value |
---|
| 470 | ! |
---|
| 471 | !CDIR NOVERRCHK |
---|
| 472 | DO jk = 2, jpkm1 ! interior value : l=sqrt(2*e/n**2) |
---|
| 473 | !CDIR NOVERRCHK |
---|
| 474 | DO jj = 2, jpjm1 |
---|
| 475 | !CDIR NOVERRCHK |
---|
| 476 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 477 | zrn2 = MAX( rn2(ji,jj,jk), rsmall ) |
---|
| 478 | zmxlm(ji,jj,jk) = MAX( rn_lmin, SQRT( 2. * en(ji,jj,jk) / zrn2 ) ) |
---|
| 479 | END DO |
---|
| 480 | END DO |
---|
| 481 | END DO |
---|
| 482 | |
---|
| 483 | ! Physical limits for the mixing length |
---|
| 484 | ! ------------------------------------- |
---|
| 485 | zmxld(:,:, 1 ) = zmxlm(:,:,1) ! surface set to the minimum value |
---|
| 486 | zmxld(:,:,jpk) = rn_lmin ! bottom set to the minimum value |
---|
| 487 | |
---|
| 488 | SELECT CASE ( nn_mxl ) |
---|
| 489 | ! |
---|
| 490 | CASE ( 0 ) ! bounded by the distance to surface and bottom |
---|
| 491 | DO jk = 2, jpkm1 |
---|
| 492 | DO jj = 2, jpjm1 |
---|
| 493 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 494 | zemxl = MIN( fsdepw(ji,jj,jk), zmxlm(ji,jj,jk), & |
---|
| 495 | & fsdepw(ji,jj,mbathy(ji,jj)) - fsdepw(ji,jj,jk) ) |
---|
| 496 | zmxlm(ji,jj,jk) = zemxl |
---|
| 497 | zmxld(ji,jj,jk) = zemxl |
---|
| 498 | END DO |
---|
| 499 | END DO |
---|
| 500 | END DO |
---|
| 501 | ! |
---|
| 502 | CASE ( 1 ) ! bounded by the vertical scale factor |
---|
| 503 | DO jk = 2, jpkm1 |
---|
| 504 | DO jj = 2, jpjm1 |
---|
| 505 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 506 | zemxl = MIN( fse3w(ji,jj,jk), zmxlm(ji,jj,jk) ) |
---|
| 507 | zmxlm(ji,jj,jk) = zemxl |
---|
| 508 | zmxld(ji,jj,jk) = zemxl |
---|
| 509 | END DO |
---|
| 510 | END DO |
---|
| 511 | END DO |
---|
| 512 | ! |
---|
| 513 | CASE ( 2 ) ! |dk[xml]| bounded by e3t : |
---|
| 514 | DO jk = 2, jpkm1 ! from the surface to the bottom : |
---|
| 515 | DO jj = 2, jpjm1 |
---|
| 516 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 517 | zmxlm(ji,jj,jk) = MIN( zmxlm(ji,jj,jk-1) + fse3t(ji,jj,jk-1), zmxlm(ji,jj,jk) ) |
---|
| 518 | END DO |
---|
| 519 | END DO |
---|
| 520 | END DO |
---|
| 521 | DO jk = jpkm1, 2, -1 ! from the bottom to the surface : |
---|
| 522 | DO jj = 2, jpjm1 |
---|
| 523 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 524 | zemxl = MIN( zmxlm(ji,jj,jk+1) + fse3t(ji,jj,jk+1), zmxlm(ji,jj,jk) ) |
---|
| 525 | zmxlm(ji,jj,jk) = zemxl |
---|
| 526 | zmxld(ji,jj,jk) = zemxl |
---|
| 527 | END DO |
---|
| 528 | END DO |
---|
| 529 | END DO |
---|
| 530 | ! |
---|
| 531 | CASE ( 3 ) ! lup and ldown, |dk[xml]| bounded by e3t : |
---|
| 532 | DO jk = 2, jpkm1 ! from the surface to the bottom : lup |
---|
| 533 | DO jj = 2, jpjm1 |
---|
| 534 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 535 | zmxld(ji,jj,jk) = MIN( zmxld(ji,jj,jk-1) + fse3t(ji,jj,jk-1), zmxlm(ji,jj,jk) ) |
---|
| 536 | END DO |
---|
| 537 | END DO |
---|
| 538 | END DO |
---|
| 539 | DO jk = jpkm1, 2, -1 ! from the bottom to the surface : ldown |
---|
| 540 | DO jj = 2, jpjm1 |
---|
| 541 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 542 | zmxlm(ji,jj,jk) = MIN( zmxlm(ji,jj,jk+1) + fse3t(ji,jj,jk+1), zmxlm(ji,jj,jk) ) |
---|
| 543 | END DO |
---|
| 544 | END DO |
---|
| 545 | END DO |
---|
| 546 | !CDIR NOVERRCHK |
---|
| 547 | DO jk = 2, jpkm1 |
---|
| 548 | !CDIR NOVERRCHK |
---|
| 549 | DO jj = 2, jpjm1 |
---|
| 550 | !CDIR NOVERRCHK |
---|
| 551 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 552 | zemlm = MIN ( zmxld(ji,jj,jk), zmxlm(ji,jj,jk) ) |
---|
| 553 | zemlp = SQRT( zmxld(ji,jj,jk) * zmxlm(ji,jj,jk) ) |
---|
| 554 | zmxlm(ji,jj,jk) = zemlm |
---|
| 555 | zmxld(ji,jj,jk) = zemlp |
---|
| 556 | END DO |
---|
| 557 | END DO |
---|
| 558 | END DO |
---|
| 559 | ! |
---|
| 560 | END SELECT |
---|
| 561 | |
---|
| 562 | # if defined key_c1d |
---|
| 563 | ! c1d configuration : save mixing and dissipation turbulent length scales |
---|
| 564 | e_dis(:,:,:) = zmxld(:,:,:) |
---|
| 565 | e_mix(:,:,:) = zmxlm(:,:,:) |
---|
| 566 | # endif |
---|
| 567 | |
---|
| 568 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>! |
---|
| 569 | ! II Vertical eddy viscosity on tke (put in zmxlm) and first estimate of avt ! |
---|
| 570 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<! |
---|
| 571 | ! Surface boundary condition on avt and avmt : jk = 1 |
---|
| 572 | ! ------------------------------------------------- |
---|
| 573 | ! avt (1) = avmb(1) and avt (jpk) = 0. |
---|
| 574 | ! avmt(1) = avmb(1) and avmt(jpk) = 0. |
---|
| 575 | ! |
---|
| 576 | !CDIR NOVERRCHK |
---|
| 577 | DO jk = 1, jpkm1 |
---|
| 578 | !CDIR NOVERRCHK |
---|
| 579 | DO jj = 2, jpjm1 |
---|
| 580 | !CDIR NOVERRCHK |
---|
| 581 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 582 | zsqen = SQRT( en(ji,jj,jk) ) |
---|
| 583 | zav = rn_ediff * zmxlm(ji,jj,jk) * zsqen |
---|
| 584 | avmt (ji,jj,jk) = MAX( zav, avmb(jk) ) * tmask(ji,jj,jk) |
---|
| 585 | avt (ji,jj,jk) = MAX( zav, avtb_2d(ji,jj) * avtb(jk) ) * tmask(ji,jj,jk) |
---|
| 586 | visco(ji,jj,jk) = avmt (ji,jj,jk) |
---|
| 587 | dissl(ji,jj,jk) = zsqen / zmxld(ji,jj,jk) |
---|
| 588 | END DO |
---|
| 589 | END DO |
---|
| 590 | END DO |
---|
| 591 | |
---|
| 592 | ! Lateral boundary conditions (sign unchanged) |
---|
| 593 | CALL lbc_lnk( avmt, 'W', 1. ) ; CALL lbc_lnk( visco, 'W', 1. ) |
---|
| 594 | |
---|
| 595 | DO jk = 2, jpkm1 ! only vertical eddy viscosity |
---|
| 596 | DO jj = 2, jpjm1 |
---|
| 597 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 598 | avmu(ji,jj,jk) = ( visco(ji,jj,jk) + visco(ji+1,jj ,jk) ) * umask(ji,jj,jk) & |
---|
| 599 | & / MAX( 1., tmask(ji,jj,jk) + tmask(ji+1,jj ,jk) ) |
---|
| 600 | avmv(ji,jj,jk) = ( visco(ji,jj,jk) + visco(ji ,jj+1,jk) ) * vmask(ji,jj,jk) & |
---|
| 601 | & / MAX( 1., tmask(ji,jj,jk) + tmask(ji ,jj+1,jk) ) |
---|
| 602 | END DO |
---|
| 603 | END DO |
---|
| 604 | END DO |
---|
| 605 | CALL lbc_lnk( avmu, 'U', 1. ) ; CALL lbc_lnk( avmv, 'V', 1. ) ! Lateral boundary conditions |
---|
| 606 | ! |
---|
| 607 | ! |
---|
| 608 | DO jk = 2, jpkm1 ! Minimum value on the eddy viscosity |
---|
| 609 | avmu(:,:,jk) = MAX( avmu(:,:,jk), avmb(jk) ) * umask(:,:,jk) |
---|
| 610 | avmv(:,:,jk) = MAX( avmv(:,:,jk), avmb(jk) ) * vmask(:,:,jk) |
---|
| 611 | END DO |
---|
| 612 | |
---|
| 613 | ! Prandtl number |
---|
| 614 | ! ---------------------------------------- |
---|
| 615 | IF( nn_pdl == 1 ) THEN |
---|
| 616 | DO jk = 2, jpkm1 |
---|
| 617 | DO jj = 2, jpjm1 |
---|
| 618 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 619 | zcoef = 0.5 / ( fse3w(ji,jj,jk) * fse3w(ji,jj,jk) ) |
---|
| 620 | ! shear |
---|
| 621 | zdku = avmu(ji-1,jj,jk) * (un(ji-1,jj,jk-1)-un(ji-1,jj,jk)) * (ub(ji-1,jj,jk-1)-ub(ji-1,jj,jk)) + & |
---|
| 622 | & avmu(ji ,jj,jk) * (un(ji ,jj,jk-1)-un(ji ,jj,jk)) * (ub(ji ,jj,jk-1)-ub(ji ,jj,jk)) |
---|
| 623 | zdkv = avmv(ji,jj-1,jk) * (vn(ji,jj-1,jk-1)-vn(ji,jj-1,jk)) * (vb(ji,jj-1,jk-1)-vb(ji,jj-1,jk)) + & |
---|
| 624 | & avmv(ji,jj ,jk) * (vn(ji,jj ,jk-1)-vn(ji,jj ,jk)) * (vb(ji,jj ,jk-1)-vb(ji,jj ,jk)) |
---|
| 625 | zri = MAX( rn2(ji,jj,jk), 0. ) / (zcoef * (zdku + zdkv + 1.e-20) / avmt(ji,jj,jk)) ! local Richardson number |
---|
| 626 | # if defined key_cfg_1d |
---|
| 627 | e_ric(ji,jj,jk) = zri * tmask(ji,jj,jk) ! c1d config. : save Ri |
---|
| 628 | # endif |
---|
| 629 | zpdl = 1.0 ! Prandtl number |
---|
| 630 | IF( zri >= 0.2 ) zpdl = 0.2 / zri |
---|
| 631 | zpdl = MAX( 0.1, zpdl ) |
---|
| 632 | avt(ji,jj,jk) = MAX( zpdl * avt(ji,jj,jk), avtb_2d(ji,jj) * avtb(jk) ) * tmask(ji,jj,jk) |
---|
| 633 | zmpdl(ji,jj,jk) = zpdl * tmask(ji,jj,jk) |
---|
| 634 | END DO |
---|
| 635 | END DO |
---|
| 636 | END DO |
---|
| 637 | ENDIF |
---|
| 638 | |
---|
| 639 | # if defined key_c1d |
---|
| 640 | e_pdl(:,:,2:jpkm1) = zmxld(:,:,2:jpkm1) ! c1d configuration : save masked Prandlt number |
---|
| 641 | e_pdl(:,:, 1) = e_pdl(:,:, 2) |
---|
| 642 | e_pdl(:,:, jpk) = e_pdl(:,:, jpkm1) |
---|
| 643 | # endif |
---|
| 644 | |
---|
| 645 | CALL lbc_lnk( avt, 'W', 1. ) ! Lateral boundary conditions on avt (sign unchanged) |
---|
| 646 | |
---|
| 647 | IF(ln_ctl) THEN |
---|
| 648 | CALL prt_ctl( tab3d_1=en , clinfo1=' tke - e: ', tab3d_2=avt, clinfo2=' t: ', ovlap=1, kdim=jpk) |
---|
| 649 | CALL prt_ctl( tab3d_1=avmu, clinfo1=' tke - u: ', mask1=umask, & |
---|
| 650 | & tab3d_2=avmv, clinfo2= ' v: ', mask2=vmask, ovlap=1, kdim=jpk ) |
---|
| 651 | ENDIF |
---|
| 652 | ! |
---|
| 653 | END SUBROUTINE tke_mlmc |
---|
| 654 | |
---|
| 655 | SUBROUTINE zdf_tke2_init |
---|
| 656 | !!---------------------------------------------------------------------- |
---|
| 657 | !! *** ROUTINE zdf_tke2_init *** |
---|
| 658 | !! |
---|
| 659 | !! ** Purpose : Initialization of the vertical eddy diffivity and |
---|
| 660 | !! viscosity when using a tke turbulent closure scheme |
---|
| 661 | !! |
---|
| 662 | !! ** Method : Read the namtke namelist and check the parameters |
---|
| 663 | !! called at the first timestep (nit000) |
---|
| 664 | !! |
---|
| 665 | !! ** input : Namlist namtke |
---|
| 666 | !! |
---|
| 667 | !! ** Action : Increase by 1 the nstop flag is setting problem encounter |
---|
| 668 | !! |
---|
| 669 | !!---------------------------------------------------------------------- |
---|
| 670 | USE dynzdf_exp |
---|
| 671 | USE trazdf_exp |
---|
| 672 | ! |
---|
| 673 | # if defined key_vectopt_memory |
---|
| 674 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 675 | # else |
---|
| 676 | INTEGER :: jk ! dummy loop indices |
---|
| 677 | # endif |
---|
| 678 | !! |
---|
| 679 | NAMELIST/namtke/ ln_rstke, rn_ediff, rn_ediss, rn_ebb , rn_efave, rn_emin, & |
---|
| 680 | & rn_emin0, rn_cri , nn_itke , nn_mxl , nn_pdl , nn_ave , & |
---|
| 681 | & nn_avb , ln_mxl0 , rn_lmin , rn_lmin0, nn_havtb, nn_etau, & |
---|
| 682 | & nn_htau , rn_efr , ln_lc , rn_lc |
---|
| 683 | !!---------------------------------------------------------------------- |
---|
| 684 | |
---|
| 685 | ! Read Namelist namtke : Turbulente Kinetic Energy |
---|
| 686 | ! -------------------- |
---|
| 687 | REWIND ( numnam ) |
---|
| 688 | READ ( numnam, namtke ) |
---|
| 689 | |
---|
| 690 | ! Compute boost associated with the Richardson critic |
---|
| 691 | ! (control values: rn_cri = 0.3 ==> eboost=1.25 for nn_pdl=1) |
---|
| 692 | ! ( rn_cri = 0.222 ==> eboost=1. ) |
---|
| 693 | eboost = rn_cri * ( 2. + rn_ediss / rn_ediff ) / 2. |
---|
| 694 | |
---|
| 695 | |
---|
| 696 | |
---|
| 697 | ! Parameter control and print |
---|
| 698 | ! --------------------------- |
---|
| 699 | ! Control print |
---|
| 700 | IF(lwp) THEN |
---|
| 701 | WRITE(numout,*) |
---|
| 702 | WRITE(numout,*) 'zdf_tke2_init : tke turbulent closure scheme' |
---|
| 703 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
| 704 | WRITE(numout,*) ' Namelist namtke : set tke mixing parameters' |
---|
| 705 | WRITE(numout,*) ' restart with tke from no tke ln_rstke = ', ln_rstke |
---|
| 706 | WRITE(numout,*) ' coef. to compute avt rn_ediff = ', rn_ediff |
---|
| 707 | WRITE(numout,*) ' Kolmogoroff dissipation coef. rn_ediss = ', rn_ediss |
---|
| 708 | WRITE(numout,*) ' tke surface input coef. rn_ebb = ', rn_ebb |
---|
| 709 | WRITE(numout,*) ' tke diffusion coef. rn_efave = ', rn_efave |
---|
| 710 | WRITE(numout,*) ' minimum value of tke rn_emin = ', rn_emin |
---|
| 711 | WRITE(numout,*) ' surface minimum value of tke rn_emin0 = ', rn_emin0 |
---|
| 712 | WRITE(numout,*) ' number of restart iter loops nn_itke = ', nn_itke |
---|
| 713 | WRITE(numout,*) ' mixing length type nn_mxl = ', nn_mxl |
---|
| 714 | WRITE(numout,*) ' prandl number flag nn_pdl = ', nn_pdl |
---|
| 715 | WRITE(numout,*) ' horizontal average flag nn_ave = ', nn_ave |
---|
| 716 | WRITE(numout,*) ' critic Richardson nb rn_cri = ', rn_cri |
---|
| 717 | WRITE(numout,*) ' and its associated coeff. eboost = ', eboost |
---|
| 718 | WRITE(numout,*) ' constant background or profile nn_avb = ', nn_avb |
---|
| 719 | WRITE(numout,*) ' surface mixing length = F(stress) or not ln_mxl0 = ', ln_mxl0 |
---|
| 720 | WRITE(numout,*) ' surface mixing length minimum value rn_lmin0 = ', rn_lmin0 |
---|
| 721 | WRITE(numout,*) ' interior mixing length minimum value rn_lmin0 = ', rn_lmin0 |
---|
| 722 | WRITE(numout,*) ' horizontal variation for avtb nn_havtb = ', nn_havtb |
---|
| 723 | WRITE(numout,*) ' test param. to add tke induced by wind nn_etau = ', nn_etau |
---|
| 724 | WRITE(numout,*) ' flag for computation of exp. tke profile nn_htau = ', nn_htau |
---|
| 725 | WRITE(numout,*) ' % of rn_emin0 which pene. the thermocline rn_efr = ', rn_efr |
---|
| 726 | WRITE(numout,*) ' flag to take into acc. Langmuir circ. ln_lc = ', ln_lc |
---|
| 727 | WRITE(numout,*) ' coef to compute verticla velocity of LC rn_lc = ', rn_lc |
---|
| 728 | WRITE(numout,*) |
---|
| 729 | ENDIF |
---|
| 730 | |
---|
| 731 | ! Check of some namelist values |
---|
| 732 | IF( nn_mxl < 0 .OR. nn_mxl > 3 ) CALL ctl_stop( 'bad flag: nn_mxl is 0, 1 or 2 ' ) |
---|
| 733 | IF( nn_pdl < 0 .OR. nn_pdl > 1 ) CALL ctl_stop( 'bad flag: nn_pdl is 0 or 1 ' ) |
---|
| 734 | IF( nn_ave < 0 .OR. nn_ave > 1 ) CALL ctl_stop( 'bad flag: nn_ave is 0 or 1 ' ) |
---|
| 735 | IF( nn_htau < 0 .OR. nn_htau > 2 ) CALL ctl_stop( 'bad flag: nn_htau is 0, 1 or 2 ' ) |
---|
| 736 | IF( rn_lc < 0.15 .OR. rn_lc > 0.2 ) CALL ctl_stop( 'bad value: rn_lc must be between 0.15 and 0.2 ' ) |
---|
| 737 | |
---|
| 738 | IF( nn_etau == 2 ) CALL zdf_mxl( nit000 ) ! Initialization of nmln |
---|
| 739 | |
---|
| 740 | ! Horizontal average : initialization of weighting arrays |
---|
| 741 | ! ------------------- |
---|
| 742 | ! |
---|
| 743 | IF(lwp) WRITE(numout,*) ' no horizontal average on avt, avmu, avmv' |
---|
| 744 | |
---|
| 745 | ! Background eddy viscosity and diffusivity profil |
---|
| 746 | ! ------------------------------------------------ |
---|
| 747 | IF( nn_avb == 0 ) THEN ! Define avmb, avtb from namelist parameter |
---|
| 748 | avmb(:) = avm0 |
---|
| 749 | avtb(:) = avt0 |
---|
| 750 | ELSE ! Background profile of avt (fit a theoretical/observational profile (Krauss 1990) |
---|
| 751 | avmb(:) = avm0 |
---|
| 752 | avtb(:) = avt0 + ( 3.0e-4 - 2 * avt0 ) * 1.0e-4 * gdepw_0(:) ! m2/s |
---|
| 753 | IF(ln_sco .AND. lwp) CALL ctl_warn( ' avtb profile not valid in sco' ) |
---|
| 754 | ENDIF |
---|
| 755 | ! |
---|
| 756 | ! ! 2D shape of the avtb |
---|
| 757 | avtb_2d(:,:) = 1.e0 ! uniform |
---|
| 758 | ! |
---|
| 759 | IF( nn_havtb == 1 ) THEN ! decrease avtb in the equatorial band |
---|
| 760 | ! -15S -5S : linear decrease from avt0 to avt0/10. |
---|
| 761 | ! -5S +5N : cst value avt0/10. |
---|
| 762 | ! 5N 15N : linear increase from avt0/10, to avt0 |
---|
| 763 | WHERE(-15. <= gphit .AND. gphit < -5 ) avtb_2d = (1. - 0.09 * (gphit + 15.)) |
---|
| 764 | WHERE( -5. <= gphit .AND. gphit < 5 ) avtb_2d = 0.1 |
---|
| 765 | WHERE( 5. <= gphit .AND. gphit < 15 ) avtb_2d = (0.1 + 0.09 * (gphit - 5.)) |
---|
| 766 | ENDIF |
---|
| 767 | |
---|
| 768 | ! Initialization of vertical eddy coef. to the background value |
---|
| 769 | ! ------------------------------------------------------------- |
---|
| 770 | DO jk = 1, jpk |
---|
| 771 | avt (:,:,jk) = avtb(jk) * tmask(:,:,jk) |
---|
| 772 | avmu(:,:,jk) = avmb(jk) * umask(:,:,jk) |
---|
| 773 | avmv(:,:,jk) = avmb(jk) * vmask(:,:,jk) |
---|
| 774 | avmt(:,:,jk) = avmb(jk) * tmask(:,:,jk) |
---|
| 775 | END DO |
---|
| 776 | dissl(:,:,:) = 1.e-12 |
---|
| 777 | |
---|
| 778 | ! read or initialize turbulent kinetic energy ( en ) |
---|
| 779 | ! ------------------------------------------------- |
---|
| 780 | CALL tke2_rst( nit000, 'READ' ) |
---|
| 781 | ! |
---|
| 782 | END SUBROUTINE zdf_tke2_init |
---|
| 783 | |
---|
| 784 | |
---|
| 785 | SUBROUTINE tke2_rst( kt, cdrw ) |
---|
| 786 | !!--------------------------------------------------------------------- |
---|
| 787 | !! *** ROUTINE ts_rst *** |
---|
| 788 | !! |
---|
| 789 | !! ** Purpose : Read or write TKE file (en) in restart file |
---|
| 790 | !! |
---|
| 791 | !! ** Method : use of IOM library |
---|
| 792 | !! if the restart does not contain TKE, en is either |
---|
| 793 | !! set to rn_emin or recomputed (nn_itke/=0) |
---|
| 794 | !!---------------------------------------------------------------------- |
---|
| 795 | INTEGER , INTENT(in) :: kt ! ocean time-step |
---|
| 796 | CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag |
---|
| 797 | ! |
---|
| 798 | INTEGER :: jit ! dummy loop indices |
---|
| 799 | !!---------------------------------------------------------------------- |
---|
| 800 | ! |
---|
| 801 | IF( TRIM(cdrw) == 'READ' ) THEN |
---|
| 802 | IF( ln_rstart ) THEN |
---|
| 803 | IF( iom_varid( numror, 'en', ldstop = .FALSE. ) > 0 .AND. .NOT.(ln_rstke) ) THEN |
---|
| 804 | CALL iom_get( numror, jpdom_autoglo, 'en', en ) |
---|
| 805 | ELSE |
---|
| 806 | IF( lwp .AND. iom_varid( numror, 'en', ldstop = .FALSE. ) > 0 ) & |
---|
| 807 | & WRITE(numout,*) ' ===>>>> : previous run without tke scheme' |
---|
| 808 | IF( lwp .AND. ln_rstke ) WRITE(numout,*) ' ===>>>> : We do not use en from the restart file' |
---|
| 809 | IF( lwp ) WRITE(numout,*) ' ===>>>> : en is set by iterative loop' |
---|
| 810 | en (:,:,:) = rn_emin * tmask(:,:,:) |
---|
| 811 | DO jit = 2, nn_itke + 1 |
---|
| 812 | CALL zdf_tke2( jit ) |
---|
| 813 | END DO |
---|
| 814 | ENDIF |
---|
| 815 | ELSE |
---|
| 816 | en(:,:,:) = rn_emin * tmask(:,:,:) ! no restart: en set to its minimum value |
---|
| 817 | ENDIF |
---|
| 818 | ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN |
---|
| 819 | IF(lwp) WRITE(numout,*) '---- tke2-rst ----' |
---|
| 820 | CALL iom_rstput( kt, nitrst_tke2, numrow, 'en', en ) |
---|
| 821 | ENDIF |
---|
| 822 | ! |
---|
| 823 | END SUBROUTINE tke2_rst |
---|
| 824 | |
---|
| 825 | #else |
---|
| 826 | !!---------------------------------------------------------------------- |
---|
| 827 | !! Dummy module : NO TKE scheme |
---|
| 828 | !!---------------------------------------------------------------------- |
---|
| 829 | LOGICAL, PUBLIC, PARAMETER :: lk_zdftke2 = .FALSE. !: TKE flag |
---|
| 830 | CONTAINS |
---|
| 831 | SUBROUTINE zdf_tke2( kt ) ! Empty routine |
---|
| 832 | WRITE(*,*) 'zdf_tke2: You should not have seen this print! error?', kt |
---|
| 833 | END SUBROUTINE zdf_tke2 |
---|
| 834 | #endif |
---|
| 835 | |
---|
| 836 | !!====================================================================== |
---|
| 837 | END MODULE zdftke2 |
---|