[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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| 25 | USE prtctl ! Print control |
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| 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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| 29 | |
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[2528] | 30 | PUBLIC dyn_zdf ! routine called by step.F90 |
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| 31 | PUBLIC dyn_zdf_init ! routine called by opa.F90 |
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[456] | 32 | |
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[2528] | 33 | INTEGER :: nzdf = 0 ! type vertical diffusion algorithm used, defined from ln_zdf... namlist logicals |
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| 34 | REAL(wp) :: r2dt ! time-step, = 2 rdttra except at nit000 (=rdttra) if neuler=0 |
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[456] | 35 | |
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| 36 | !! * Substitutions |
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| 37 | # include "domzgr_substitute.h90" |
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| 38 | # include "zdfddm_substitute.h90" |
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| 39 | # include "vectopt_loop_substitute.h90" |
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| 40 | !!---------------------------------------------------------------------- |
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[2528] | 41 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[1152] | 42 | !! $Id$ |
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[2528] | 43 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[456] | 44 | !!---------------------------------------------------------------------- |
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| 45 | |
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| 46 | CONTAINS |
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| 47 | |
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| 48 | SUBROUTINE dyn_zdf( kt ) |
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| 49 | !!---------------------------------------------------------------------- |
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| 50 | !! *** ROUTINE dyn_zdf *** |
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| 51 | !! |
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| 52 | !! ** Purpose : compute the vertical ocean dynamics physics. |
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| 53 | !!--------------------------------------------------------------------- |
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[2590] | 54 | USE wrk_nemo, ONLY: wrk_use, wrk_release |
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| 55 | USE wrk_nemo, ONLY: ztrdu => wrk_3d_1, ztrdv => wrk_3d_2 |
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| 56 | !! |
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[456] | 57 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 58 | !!--------------------------------------------------------------------- |
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| 59 | |
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[2590] | 60 | IF(.NOT. wrk_use(3, 1,2))THEN |
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| 61 | CALL ctl_stop('dyn_zdf: requested workspace arrays unavailable.') |
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| 62 | RETURN |
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| 63 | END IF |
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[456] | 64 | ! ! set time step |
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[2528] | 65 | IF( neuler == 0 .AND. kt == nit000 ) THEN ; r2dt = rdt ! = rdtra (restart with Euler time stepping) |
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| 66 | ELSEIF( kt <= nit000 + 1 ) THEN ; r2dt = 2. * rdt ! = 2 rdttra (leapfrog) |
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[456] | 67 | ENDIF |
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| 68 | |
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| 69 | IF( l_trddyn ) THEN ! temporary save of ta and sa trends |
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| 70 | ztrdu(:,:,:) = ua(:,:,:) |
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| 71 | ztrdv(:,:,:) = va(:,:,:) |
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| 72 | ENDIF |
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| 73 | |
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| 74 | SELECT CASE ( nzdf ) ! compute lateral mixing trend and add it to the general trend |
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[503] | 75 | ! |
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[2528] | 76 | CASE ( 0 ) ; CALL dyn_zdf_exp( kt, r2dt ) ! explicit scheme |
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| 77 | CASE ( 1 ) ; CALL dyn_zdf_imp( kt, r2dt ) ! implicit scheme |
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[503] | 78 | ! |
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| 79 | CASE ( -1 ) ! esopa: test all possibility with control print |
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[2528] | 80 | CALL dyn_zdf_exp( kt, r2dt ) |
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[684] | 81 | CALL prt_ctl( tab3d_1=ua, clinfo1=' zdf0 - Ua: ', mask1=umask, & |
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[503] | 82 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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[2528] | 83 | CALL dyn_zdf_imp( kt, r2dt ) |
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[684] | 84 | CALL prt_ctl( tab3d_1=ua, clinfo1=' zdf1 - Ua: ', mask1=umask, & |
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[503] | 85 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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[456] | 86 | END SELECT |
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| 87 | |
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[503] | 88 | IF( l_trddyn ) THEN ! save the vertical diffusive trends for further diagnostics |
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[456] | 89 | ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) |
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| 90 | ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) |
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[503] | 91 | CALL trd_mod( ztrdu, ztrdv, jpdyn_trd_zdf, 'DYN', kt ) |
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[456] | 92 | ENDIF |
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| 93 | ! ! print mean trends (used for debugging) |
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| 94 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' zdf - Ua: ', mask1=umask, & |
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| 95 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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[503] | 96 | ! |
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[2590] | 97 | IF(.NOT. wrk_release(3, 1,2))THEN |
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| 98 | CALL ctl_stop('dyn_zdf: failed to release workspace arrays.') |
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| 99 | END IF |
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| 100 | ! |
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[456] | 101 | END SUBROUTINE dyn_zdf |
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| 102 | |
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| 103 | |
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[2528] | 104 | SUBROUTINE dyn_zdf_init |
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[456] | 105 | !!---------------------------------------------------------------------- |
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[2528] | 106 | !! *** ROUTINE dyn_zdf_init *** |
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[456] | 107 | !! |
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[503] | 108 | !! ** Purpose : initializations of the vertical diffusion scheme |
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[456] | 109 | !! |
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| 110 | !! ** Method : implicit (euler backward) scheme (default) |
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| 111 | !! explicit (time-splitting) scheme if ln_zdfexp=T |
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| 112 | !!---------------------------------------------------------------------- |
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| 113 | USE zdftke |
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[2528] | 114 | USE zdfgls |
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[456] | 115 | USE zdfkpp |
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| 116 | !!---------------------------------------------------------------------- |
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[2528] | 117 | ! |
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[456] | 118 | ! Choice from ln_zdfexp read in namelist in zdfini |
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[503] | 119 | IF( ln_zdfexp ) THEN ; nzdf = 0 ! use explicit scheme |
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| 120 | ELSE ; nzdf = 1 ! use implicit scheme |
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[456] | 121 | ENDIF |
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[2528] | 122 | ! |
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[456] | 123 | ! Force implicit schemes |
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[2528] | 124 | IF( lk_zdftke .OR. lk_zdfgls .OR. lk_zdfkpp ) nzdf = 1 ! TKE, GLS or KPP physics |
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| 125 | IF( ln_dynldf_iso ) nzdf = 1 ! iso-neutral lateral physics |
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| 126 | IF( ln_dynldf_hor .AND. ln_sco ) nzdf = 1 ! horizontal lateral physics in s-coordinate |
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| 127 | ! |
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[503] | 128 | IF( lk_esopa ) nzdf = -1 ! Esopa key: All schemes used |
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[2528] | 129 | ! |
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[503] | 130 | IF(lwp) THEN ! Print the choice |
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[456] | 131 | WRITE(numout,*) |
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[2528] | 132 | WRITE(numout,*) 'dyn_zdf_init : vertical dynamics physics scheme' |
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[456] | 133 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 134 | IF( nzdf == -1 ) WRITE(numout,*) ' ESOPA test All scheme used' |
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| 135 | IF( nzdf == 0 ) WRITE(numout,*) ' Explicit time-splitting scheme' |
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| 136 | IF( nzdf == 1 ) WRITE(numout,*) ' Implicit (euler backward) scheme' |
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| 137 | ENDIF |
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[503] | 138 | ! |
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[2528] | 139 | END SUBROUTINE dyn_zdf_init |
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[456] | 140 | |
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| 141 | !!============================================================================== |
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| 142 | END MODULE dynzdf |
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