[456] | 1 | MODULE dynzdf |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE dynzdf *** |
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| 4 | !! Ocean dynamics : vertical component of the momentum mixing trend |
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| 5 | !!============================================================================== |
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[2528] | 6 | !! History : 1.0 ! 2005-11 (G. Madec) Original code |
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| 7 | !! 3.3 ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase |
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[456] | 8 | !!---------------------------------------------------------------------- |
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[503] | 9 | |
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| 10 | !!---------------------------------------------------------------------- |
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[456] | 11 | !! dyn_zdf : Update the momentum trend with the vertical diffusion |
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[2528] | 12 | !! dyn_zdf_init : initializations of the vertical diffusion scheme |
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[456] | 13 | !!---------------------------------------------------------------------- |
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| 14 | USE oce ! ocean dynamics and tracers variables |
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| 15 | USE dom_oce ! ocean space and time domain variables |
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| 16 | USE zdf_oce ! ocean vertical physics variables |
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| 17 | |
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| 18 | USE dynzdf_exp ! vertical diffusion: explicit (dyn_zdf_exp routine) |
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| 19 | USE dynzdf_imp ! vertical diffusion: implicit (dyn_zdf_imp routine) |
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| 20 | |
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| 21 | USE ldfdyn_oce ! ocean dynamics: lateral physics |
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| 22 | USE trdmod ! ocean active dynamics and tracers trends |
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| 23 | USE trdmod_oce ! ocean variables trends |
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| 24 | USE in_out_manager ! I/O manager |
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[2715] | 25 | USE lib_mpp ! MPP library |
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[456] | 26 | USE prtctl ! Print control |
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[3294] | 27 | USE wrk_nemo ! Memory Allocation |
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| 28 | USE timing ! Timing |
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[456] | 29 | |
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| 30 | IMPLICIT NONE |
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| 31 | PRIVATE |
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| 32 | |
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[2528] | 33 | PUBLIC dyn_zdf ! routine called by step.F90 |
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| 34 | PUBLIC dyn_zdf_init ! routine called by opa.F90 |
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[456] | 35 | |
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[2528] | 36 | INTEGER :: nzdf = 0 ! type vertical diffusion algorithm used, defined from ln_zdf... namlist logicals |
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| 37 | REAL(wp) :: r2dt ! time-step, = 2 rdttra except at nit000 (=rdttra) if neuler=0 |
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[456] | 38 | |
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| 39 | !! * Substitutions |
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| 40 | # include "domzgr_substitute.h90" |
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| 41 | # include "zdfddm_substitute.h90" |
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| 42 | # include "vectopt_loop_substitute.h90" |
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| 43 | !!---------------------------------------------------------------------- |
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[2528] | 44 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[1152] | 45 | !! $Id$ |
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[2528] | 46 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[456] | 47 | !!---------------------------------------------------------------------- |
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| 48 | |
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| 49 | CONTAINS |
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| 50 | |
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| 51 | SUBROUTINE dyn_zdf( kt ) |
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| 52 | !!---------------------------------------------------------------------- |
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| 53 | !! *** ROUTINE dyn_zdf *** |
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| 54 | !! |
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| 55 | !! ** Purpose : compute the vertical ocean dynamics physics. |
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| 56 | !!--------------------------------------------------------------------- |
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[2715] | 57 | !! |
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[456] | 58 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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[3294] | 59 | ! |
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| 60 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ztrdu, ztrdv |
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[456] | 61 | !!--------------------------------------------------------------------- |
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[3294] | 62 | ! |
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| 63 | IF( nn_timing == 1 ) CALL timing_start('dyn_zdf') |
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| 64 | ! |
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[456] | 65 | ! ! set time step |
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[2528] | 66 | IF( neuler == 0 .AND. kt == nit000 ) THEN ; r2dt = rdt ! = rdtra (restart with Euler time stepping) |
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| 67 | ELSEIF( kt <= nit000 + 1 ) THEN ; r2dt = 2. * rdt ! = 2 rdttra (leapfrog) |
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[456] | 68 | ENDIF |
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| 69 | |
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| 70 | IF( l_trddyn ) THEN ! temporary save of ta and sa trends |
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[3294] | 71 | CALL wrk_alloc( jpi, jpj, jpk, ztrdu, ztrdv ) |
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[456] | 72 | ztrdu(:,:,:) = ua(:,:,:) |
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| 73 | ztrdv(:,:,:) = va(:,:,:) |
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| 74 | ENDIF |
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| 75 | |
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| 76 | SELECT CASE ( nzdf ) ! compute lateral mixing trend and add it to the general trend |
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[503] | 77 | ! |
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[2528] | 78 | CASE ( 0 ) ; CALL dyn_zdf_exp( kt, r2dt ) ! explicit scheme |
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| 79 | CASE ( 1 ) ; CALL dyn_zdf_imp( kt, r2dt ) ! implicit scheme |
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[503] | 80 | ! |
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[2715] | 81 | CASE ( -1 ) ! esopa: test all possibility with control print |
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[2528] | 82 | CALL dyn_zdf_exp( kt, r2dt ) |
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[684] | 83 | CALL prt_ctl( tab3d_1=ua, clinfo1=' zdf0 - Ua: ', mask1=umask, & |
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[2715] | 84 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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[2528] | 85 | CALL dyn_zdf_imp( kt, r2dt ) |
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[684] | 86 | CALL prt_ctl( tab3d_1=ua, clinfo1=' zdf1 - Ua: ', mask1=umask, & |
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[2715] | 87 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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[456] | 88 | END SELECT |
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| 89 | |
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[503] | 90 | IF( l_trddyn ) THEN ! save the vertical diffusive trends for further diagnostics |
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[456] | 91 | ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) |
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| 92 | ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) |
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[503] | 93 | CALL trd_mod( ztrdu, ztrdv, jpdyn_trd_zdf, 'DYN', kt ) |
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[3294] | 94 | ! |
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| 95 | CALL wrk_dealloc( jpi, jpj, jpk, ztrdu, ztrdv ) |
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[456] | 96 | ENDIF |
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| 97 | ! ! print mean trends (used for debugging) |
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| 98 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' zdf - Ua: ', mask1=umask, & |
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| 99 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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[503] | 100 | ! |
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[3294] | 101 | IF( nn_timing == 1 ) CALL timing_stop('dyn_zdf') |
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[2715] | 102 | ! |
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[456] | 103 | END SUBROUTINE dyn_zdf |
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| 104 | |
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| 105 | |
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[2528] | 106 | SUBROUTINE dyn_zdf_init |
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[456] | 107 | !!---------------------------------------------------------------------- |
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[2528] | 108 | !! *** ROUTINE dyn_zdf_init *** |
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[456] | 109 | !! |
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[503] | 110 | !! ** Purpose : initializations of the vertical diffusion scheme |
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[456] | 111 | !! |
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| 112 | !! ** Method : implicit (euler backward) scheme (default) |
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| 113 | !! explicit (time-splitting) scheme if ln_zdfexp=T |
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| 114 | !!---------------------------------------------------------------------- |
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| 115 | USE zdftke |
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[2528] | 116 | USE zdfgls |
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[456] | 117 | USE zdfkpp |
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| 118 | !!---------------------------------------------------------------------- |
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[2528] | 119 | ! |
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[456] | 120 | ! Choice from ln_zdfexp read in namelist in zdfini |
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[503] | 121 | IF( ln_zdfexp ) THEN ; nzdf = 0 ! use explicit scheme |
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| 122 | ELSE ; nzdf = 1 ! use implicit scheme |
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[456] | 123 | ENDIF |
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[2528] | 124 | ! |
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[456] | 125 | ! Force implicit schemes |
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[2528] | 126 | IF( lk_zdftke .OR. lk_zdfgls .OR. lk_zdfkpp ) nzdf = 1 ! TKE, GLS or KPP physics |
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| 127 | IF( ln_dynldf_iso ) nzdf = 1 ! iso-neutral lateral physics |
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| 128 | IF( ln_dynldf_hor .AND. ln_sco ) nzdf = 1 ! horizontal lateral physics in s-coordinate |
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| 129 | ! |
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[503] | 130 | IF( lk_esopa ) nzdf = -1 ! Esopa key: All schemes used |
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[2528] | 131 | ! |
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[503] | 132 | IF(lwp) THEN ! Print the choice |
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[456] | 133 | WRITE(numout,*) |
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[2528] | 134 | WRITE(numout,*) 'dyn_zdf_init : vertical dynamics physics scheme' |
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[456] | 135 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 136 | IF( nzdf == -1 ) WRITE(numout,*) ' ESOPA test All scheme used' |
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| 137 | IF( nzdf == 0 ) WRITE(numout,*) ' Explicit time-splitting scheme' |
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| 138 | IF( nzdf == 1 ) WRITE(numout,*) ' Implicit (euler backward) scheme' |
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| 139 | ENDIF |
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[503] | 140 | ! |
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[2528] | 141 | END SUBROUTINE dyn_zdf_init |
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[456] | 142 | |
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| 143 | !!============================================================================== |
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| 144 | END MODULE dynzdf |
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