[3] | 1 | MODULE traadv_muscl |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE traadv_muscl *** |
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| 4 | !! Ocean active tracers: horizontal & vertical advective trend |
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| 5 | !!============================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! tra_adv_muscl : update the tracer trend with the horizontal |
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| 9 | !! and vertical advection trends using MUSCL scheme |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! * Modules used |
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| 12 | USE oce ! ocean dynamics and active tracers |
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| 13 | USE dom_oce ! ocean space and time domain |
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[216] | 14 | USE trdmod ! ocean active tracers trends |
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| 15 | USE trdmod_oce ! ocean variables trends |
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[3] | 16 | USE in_out_manager ! I/O manager |
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| 17 | USE dynspg_fsc ! surface pressure gradient |
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| 18 | USE dynspg_fsc_atsk ! autotasked surface pressure gradient |
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| 19 | USE trabbl ! tracers: bottom boundary layer |
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[216] | 20 | USE lib_mpp ! distribued memory computing |
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[67] | 21 | USE lbclnk ! ocean lateral boundary condition (or mpp link) |
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[132] | 22 | USE diaptr ! poleward transport diagnostics |
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[3] | 23 | |
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| 24 | IMPLICIT NONE |
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| 25 | PRIVATE |
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| 26 | |
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| 27 | !! * Accessibility |
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| 28 | PUBLIC tra_adv_muscl ! routine called by step.F90 |
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| 29 | |
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| 30 | !! * Substitutions |
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| 31 | # include "domzgr_substitute.h90" |
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| 32 | # include "vectopt_loop_substitute.h90" |
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| 33 | !!---------------------------------------------------------------------- |
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| 34 | !! OPA 9.0 , LODYC-IPSL (2003) |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | |
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| 37 | CONTAINS |
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| 38 | |
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| 39 | SUBROUTINE tra_adv_muscl( kt ) |
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| 40 | !!---------------------------------------------------------------------- |
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| 41 | !! *** ROUTINE tra_adv_muscl *** |
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[216] | 42 | !! |
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[3] | 43 | !! ** Purpose : Compute the now trend due to total advection of T and |
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| 44 | !! S using a MUSCL scheme (Monotone Upstream-centered Scheme for |
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| 45 | !! Conservation Laws) and add it to the general tracer trend. |
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| 46 | !! |
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[216] | 47 | !! ** Method : MUSCL scheme plus centered scheme at ocean boundaries |
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[3] | 48 | !! |
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| 49 | !! ** Action : - update (ta,sa) with the now advective tracer trends |
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[216] | 50 | !! - save trends in (ztdta,ztdsa) ('key_trdtra') |
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[3] | 51 | !! |
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| 52 | !! References : |
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| 53 | !! Estubier, A., and M. Levy, Notes Techn. Pole de Modelisation |
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| 54 | !! IPSL, Sept. 2000 (http://www.lodyc.jussieu.fr/opa) |
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| 55 | !! |
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| 56 | !! History : |
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| 57 | !! ! 06-00 (A.Estublier) for passive tracers |
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| 58 | !! ! 01-08 (E.Durand G.Madec) adapted for T & S |
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| 59 | !! 8.5 ! 02-06 (G. Madec) F90: Free form and module |
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[216] | 60 | !! 9.0 ! 04-08 (C. Talandier) New trends organization |
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[3] | 61 | !!---------------------------------------------------------------------- |
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| 62 | !! * modules used |
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| 63 | #if defined key_trabbl_adv |
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| 64 | USE oce , zun => ua, & ! use ua as workspace |
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| 65 | & zvn => va ! use va as workspace |
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| 66 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zwn |
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| 67 | #else |
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| 68 | USE oce , zun => un, & ! When no bbl, zun == un |
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| 69 | zvn => vn, & ! zvn == vn |
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| 70 | zwn => wn ! zwn == wn |
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| 71 | #endif |
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| 72 | |
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| 73 | !! * Arguments |
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| 74 | INTEGER, INTENT( in ) :: kt ! ocean time-step |
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| 75 | |
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| 76 | !! * Local declarations |
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| 77 | INTEGER :: ji, jj, jk ! dummy loop indices |
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[216] | 78 | REAL(wp) :: & |
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| 79 | zu, zv, zw, zeu, zev, & |
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| 80 | zew, zbtr, zstep, & |
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| 81 | z0u, z0v, z0w, & |
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| 82 | zzt1, zzt2, zalpha, & |
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| 83 | zzs1, zzs2, z2, & |
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| 84 | zta, zsa |
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[3] | 85 | REAL(wp), DIMENSION (jpi,jpj,jpk) :: & |
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[216] | 86 | zt1, zt2, ztp1, ztp2, & |
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| 87 | zs1, zs2, zsp1, zsp2, & |
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| 88 | ztdta, ztdsa |
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[3] | 89 | !!---------------------------------------------------------------------- |
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| 90 | |
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| 91 | IF( kt == nit000 .AND. lwp ) THEN |
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| 92 | WRITE(numout,*) |
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| 93 | WRITE(numout,*) 'tra_adv : MUSCL advection scheme' |
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| 94 | WRITE(numout,*) '~~~~~~~' |
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| 95 | ENDIF |
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| 96 | |
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| 97 | IF( neuler == 0 .AND. kt == nit000 ) THEN |
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| 98 | z2=1. |
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| 99 | ELSE |
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| 100 | z2=2. |
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| 101 | ENDIF |
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| 102 | |
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[216] | 103 | ! Save ta and sa trends |
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| 104 | IF( l_trdtra ) THEN |
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| 105 | ztdta(:,:,:) = ta(:,:,:) |
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| 106 | ztdsa(:,:,:) = sa(:,:,:) |
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| 107 | l_adv = 'mus' |
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| 108 | ENDIF |
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| 109 | |
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[3] | 110 | #if defined key_trabbl_adv |
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| 111 | ! Advective bottom boundary layer |
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| 112 | ! ------------------------------- |
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| 113 | zun(:,:,:) = un (:,:,:) - u_bbl(:,:,:) |
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| 114 | zvn(:,:,:) = vn (:,:,:) - v_bbl(:,:,:) |
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| 115 | zwn(:,:,:) = wn (:,:,:) + w_bbl( :,:,:) |
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| 116 | #endif |
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| 117 | |
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| 118 | |
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| 119 | ! I. Horizontal advective fluxes |
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| 120 | ! ------------------------------ |
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| 121 | |
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| 122 | ! first guess of the slopes |
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| 123 | ! interior values |
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| 124 | DO jk = 1, jpkm1 |
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| 125 | DO jj = 1, jpjm1 |
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| 126 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 127 | zt1(ji,jj,jk) = umask(ji,jj,jk) * ( tb(ji+1,jj,jk) - tb(ji,jj,jk) ) |
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| 128 | zs1(ji,jj,jk) = umask(ji,jj,jk) * ( sb(ji+1,jj,jk) - sb(ji,jj,jk) ) |
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| 129 | zt2(ji,jj,jk) = vmask(ji,jj,jk) * ( tb(ji,jj+1,jk) - tb(ji,jj,jk) ) |
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| 130 | zs2(ji,jj,jk) = vmask(ji,jj,jk) * ( sb(ji,jj+1,jk) - sb(ji,jj,jk) ) |
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| 131 | END DO |
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| 132 | END DO |
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| 133 | END DO |
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| 134 | ! bottom values |
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| 135 | zt1(:,:,jpk) = 0.e0 ; zt2(:,:,jpk) = 0.e0 |
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| 136 | zs1(:,:,jpk) = 0.e0 ; zs2(:,:,jpk) = 0.e0 |
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| 137 | |
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| 138 | ! lateral boundary conditions on zt1, zt2 ; zs1, zs2 (changed sign) |
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| 139 | CALL lbc_lnk( zt1, 'U', -1. ) ; CALL lbc_lnk( zs1, 'U', -1. ) |
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| 140 | CALL lbc_lnk( zt2, 'V', -1. ) ; CALL lbc_lnk( zs2, 'V', -1. ) |
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| 141 | |
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| 142 | ! Slopes |
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| 143 | ! interior values |
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| 144 | DO jk = 1, jpkm1 |
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| 145 | DO jj = 2, jpj |
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[97] | 146 | DO ji = fs_2, jpi ! vector opt. |
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| 147 | ztp1(ji,jj,jk) = ( zt1(ji,jj,jk) + zt1(ji-1,jj ,jk) ) & |
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| 148 | & * ( 0.25 + SIGN( 0.25, zt1(ji,jj,jk) * zt1(ji-1,jj ,jk) ) ) |
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| 149 | zsp1(ji,jj,jk) = ( zs1(ji,jj,jk) + zs1(ji-1,jj ,jk) ) & |
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| 150 | & * ( 0.25 + SIGN( 0.25, zs1(ji,jj,jk) * zs1(ji-1,jj ,jk) ) ) |
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| 151 | ztp2(ji,jj,jk) = ( zt2(ji,jj,jk) + zt2(ji ,jj-1,jk) ) & |
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| 152 | & * ( 0.25 + SIGN( 0.25, zt2(ji,jj,jk) * zt2(ji ,jj-1,jk) ) ) |
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| 153 | zsp2(ji,jj,jk) = ( zs2(ji,jj,jk) + zs2(ji ,jj-1,jk) ) & |
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| 154 | & * ( 0.25 + SIGN( 0.25, zs2(ji,jj,jk) * zs2(ji ,jj-1,jk) ) ) |
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[3] | 155 | END DO |
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| 156 | END DO |
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| 157 | END DO |
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| 158 | ! bottom values |
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| 159 | ztp1(:,:,jpk) = 0.e0 ; ztp2(:,:,jpk) = 0.e0 |
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| 160 | zsp1(:,:,jpk) = 0.e0 ; zsp2(:,:,jpk) = 0.e0 |
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| 161 | |
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[97] | 162 | ! Slopes limitation |
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[3] | 163 | DO jk = 1, jpkm1 |
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| 164 | DO jj = 2, jpj |
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[97] | 165 | DO ji = fs_2, jpi ! vector opt. |
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[3] | 166 | ztp1(ji,jj,jk) = SIGN( 1., ztp1(ji,jj,jk) ) & |
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| 167 | & * MIN( ABS( ztp1(ji ,jj,jk) ), & |
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| 168 | & 2.*ABS( zt1 (ji-1,jj,jk) ), & |
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| 169 | & 2.*ABS( zt1 (ji ,jj,jk) ) ) |
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| 170 | zsp1(ji,jj,jk) = SIGN( 1., zsp1(ji,jj,jk) ) & |
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| 171 | & * MIN( ABS( zsp1(ji ,jj,jk) ), & |
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| 172 | & 2.*ABS( zs1 (ji-1,jj,jk) ), & |
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| 173 | & 2.*ABS( zs1 (ji ,jj,jk) ) ) |
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| 174 | ztp2(ji,jj,jk) = SIGN( 1., ztp2(ji,jj,jk) ) & |
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| 175 | & * MIN( ABS( ztp2(ji,jj ,jk) ), & |
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| 176 | & 2.*ABS( zt2 (ji,jj-1,jk) ), & |
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| 177 | & 2.*ABS( zt2 (ji,jj ,jk) ) ) |
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| 178 | zsp2(ji,jj,jk) = SIGN( 1., zsp2(ji,jj,jk) ) & |
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| 179 | & * MIN( ABS( zsp2(ji,jj ,jk) ), & |
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| 180 | & 2.*ABS( zs2 (ji,jj-1,jk) ), & |
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| 181 | & 2.*ABS( zs2 (ji,jj ,jk) ) ) |
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| 182 | END DO |
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| 183 | END DO |
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| 184 | END DO |
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| 185 | |
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| 186 | ! Advection terms |
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| 187 | ! interior values |
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| 188 | DO jk = 1, jpkm1 |
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| 189 | zstep = z2 * rdttra(jk) |
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| 190 | DO jj = 2, jpjm1 |
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| 191 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 192 | ! volume fluxes |
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| 193 | #if defined key_s_coord || defined key_partial_steps |
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| 194 | zeu = e2u(ji,jj) * fse3u(ji,jj,jk) * zun(ji,jj,jk) |
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| 195 | zev = e1v(ji,jj) * fse3v(ji,jj,jk) * zvn(ji,jj,jk) |
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| 196 | #else |
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| 197 | zeu = e2u(ji,jj) * zun(ji,jj,jk) |
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| 198 | zev = e1v(ji,jj) * zvn(ji,jj,jk) |
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| 199 | #endif |
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| 200 | ! MUSCL fluxes |
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| 201 | z0u = SIGN( 0.5, zun(ji,jj,jk) ) |
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| 202 | zalpha = 0.5 - z0u |
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| 203 | zu = z0u - 0.5 * zun(ji,jj,jk) * zstep / e1u(ji,jj) |
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| 204 | zzt1 = tb(ji+1,jj,jk) + zu*ztp1(ji+1,jj,jk) |
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| 205 | zzt2 = tb(ji ,jj,jk) + zu*ztp1(ji ,jj,jk) |
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| 206 | zzs1 = sb(ji+1,jj,jk) + zu*zsp1(ji+1,jj,jk) |
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| 207 | zzs2 = sb(ji ,jj,jk) + zu*zsp1(ji ,jj,jk) |
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| 208 | zt1(ji,jj,jk) = zeu * ( zalpha * zzt1 + (1.-zalpha) * zzt2 ) |
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| 209 | zs1(ji,jj,jk) = zeu * ( zalpha * zzs1 + (1.-zalpha) * zzs2 ) |
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| 210 | |
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| 211 | z0v = SIGN( 0.5, zvn(ji,jj,jk) ) |
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| 212 | zalpha = 0.5 - z0v |
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| 213 | zv = z0v - 0.5 * zvn(ji,jj,jk) * zstep / e2v(ji,jj) |
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| 214 | zzt1 = tb(ji,jj+1,jk) + zv*ztp2(ji,jj+1,jk) |
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| 215 | zzt2 = tb(ji,jj ,jk) + zv*ztp2(ji,jj ,jk) |
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| 216 | zzs1 = sb(ji,jj+1,jk) + zv*zsp2(ji,jj+1,jk) |
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| 217 | zzs2 = sb(ji,jj ,jk) + zv*zsp2(ji,jj ,jk) |
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| 218 | zt2(ji,jj,jk) = zev * ( zalpha * zzt1 + (1.-zalpha) * zzt2 ) |
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| 219 | zs2(ji,jj,jk) = zev * ( zalpha * zzs1 + (1.-zalpha) * zzs2 ) |
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| 220 | END DO |
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| 221 | END DO |
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| 222 | END DO |
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| 223 | |
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| 224 | ! lateral boundary conditions on zt1, zt2 ; zs1, zs2 (changed sign) |
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[216] | 225 | CALL lbc_lnk( zt1, 'U', -1. ) ; CALL lbc_lnk( zs1, 'U', -1. ) |
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[3] | 226 | CALL lbc_lnk( zt2, 'V', -1. ) ; CALL lbc_lnk( zs2, 'V', -1. ) |
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| 227 | |
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[216] | 228 | ! Save MUSCL fluxes to compute i- & j- horizontal |
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| 229 | ! advection trends in the MLD |
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| 230 | IF( l_trdtra ) THEN |
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| 231 | ! save i- terms |
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| 232 | tladi(:,:,:) = zt1(:,:,:) |
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| 233 | sladi(:,:,:) = zs1(:,:,:) |
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| 234 | ! save j- terms |
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| 235 | tladj(:,:,:) = zt2(:,:,:) |
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| 236 | sladj(:,:,:) = zs2(:,:,:) |
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| 237 | ENDIF |
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| 238 | |
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[3] | 239 | ! Compute & add the horizontal advective trend |
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| 240 | |
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| 241 | DO jk = 1, jpkm1 |
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| 242 | DO jj = 2, jpjm1 |
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| 243 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 244 | #if defined key_s_coord || defined key_partial_steps |
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| 245 | zbtr = 1. / ( e1t(ji,jj)*e2t(ji,jj)*fse3t(ji,jj,jk) ) |
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| 246 | #else |
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| 247 | zbtr = 1. / ( e1t(ji,jj)*e2t(ji,jj) ) |
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| 248 | #endif |
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| 249 | ! horizontal advective trends |
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| 250 | zta = - zbtr * ( zt1(ji,jj,jk) - zt1(ji-1,jj ,jk ) & |
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| 251 | & + zt2(ji,jj,jk) - zt2(ji ,jj-1,jk ) ) |
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| 252 | zsa = - zbtr * ( zs1(ji,jj,jk) - zs1(ji-1,jj ,jk ) & |
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| 253 | & + zs2(ji,jj,jk) - zs2(ji ,jj-1,jk ) ) |
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| 254 | ! add it to the general tracer trends |
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| 255 | ta(ji,jj,jk) = ta(ji,jj,jk) + zta |
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| 256 | sa(ji,jj,jk) = sa(ji,jj,jk) + zsa |
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| 257 | END DO |
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| 258 | END DO |
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| 259 | END DO |
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| 260 | |
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[216] | 261 | ! Save the horizontal advective trends for diagnostic |
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| 262 | |
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| 263 | IF( l_trdtra ) THEN |
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| 264 | ! Recompute the horizontal advection zta & zsa trends computed |
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| 265 | ! at the step 2. above in making the difference between the new |
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| 266 | ! trends and the previous one ta()/sa - ztdta()/ztdsa() and add |
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| 267 | ! the term tn()/sn()*hdivn() to recover the Uh gradh(T/S) trends |
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| 268 | ztdta(:,:,:) = ta(:,:,:) - ztdta(:,:,:) + tn(:,:,:) * hdivn(:,:,:) |
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| 269 | ztdsa(:,:,:) = sa(:,:,:) - ztdsa(:,:,:) + sn(:,:,:) * hdivn(:,:,:) |
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| 270 | |
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| 271 | CALL trd_mod(ztdta, ztdsa, jpttdlad, 'TRA', kt) |
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| 272 | |
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| 273 | ! Save the new ta and sa trends |
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| 274 | ztdta(:,:,:) = ta(:,:,:) |
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| 275 | ztdsa(:,:,:) = sa(:,:,:) |
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| 276 | |
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| 277 | ENDIF |
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| 278 | |
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[97] | 279 | IF(l_ctl) THEN |
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[106] | 280 | zta = SUM( ta(2:nictl,2:njctl,1:jpkm1) * tmask(2:nictl,2:njctl,1:jpkm1) ) |
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| 281 | zsa = SUM( sa(2:nictl,2:njctl,1:jpkm1) * tmask(2:nictl,2:njctl,1:jpkm1) ) |
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[97] | 282 | WRITE(numout,*) ' had - Ta: ', zta-t_ctl, ' Sa: ', zsa-s_ctl, ' muscl' |
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| 283 | t_ctl = zta ; s_ctl = zsa |
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| 284 | ENDIF |
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| 285 | |
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[216] | 286 | ! "zonal" mean advective heat and salt transport |
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[132] | 287 | IF( ln_diaptr .AND. ( MOD( kt, nf_ptr ) == 0 ) ) THEN |
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[3] | 288 | # if defined key_s_coord || defined key_partial_steps |
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[132] | 289 | pht_adv(:) = ptr_vj( zt2(:,:,:) ) |
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| 290 | pst_adv(:) = ptr_vj( zs2(:,:,:) ) |
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[3] | 291 | # else |
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| 292 | DO jk = 1, jpkm1 |
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| 293 | DO jj = 2, jpjm1 |
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| 294 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 295 | zt2(ji,jj,jk) = zt2(ji,jj,jk) * fse3v(ji,jj,jk) |
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| 296 | zs2(ji,jj,jk) = zs2(ji,jj,jk) * fse3v(ji,jj,jk) |
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| 297 | END DO |
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| 298 | END DO |
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| 299 | END DO |
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[132] | 300 | pht_adv(:) = ptr_vj( zt2(:,:,:) ) |
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| 301 | pst_adv(:) = ptr_vj( zs2(:,:,:) ) |
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[3] | 302 | # endif |
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| 303 | ENDIF |
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| 304 | |
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| 305 | ! II. Vertical advective fluxes |
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| 306 | ! ----------------------------- |
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| 307 | |
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| 308 | ! First guess of the slope |
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| 309 | ! interior values |
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| 310 | DO jk = 2, jpkm1 |
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| 311 | zt1(:,:,jk) = tmask(:,:,jk) * ( tb(:,:,jk-1) - tb(:,:,jk) ) |
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| 312 | zs1(:,:,jk) = tmask(:,:,jk) * ( sb(:,:,jk-1) - sb(:,:,jk) ) |
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| 313 | END DO |
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| 314 | ! surface & bottom boundary conditions |
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| 315 | zt1 (:,:, 1 ) = 0.e0 ; zt1 (:,:,jpk) = 0.e0 |
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| 316 | zs1 (:,:, 1 ) = 0.e0 ; zs1 (:,:,jpk) = 0.e0 |
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| 317 | |
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| 318 | ! Slopes |
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| 319 | DO jk = 2, jpkm1 |
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| 320 | DO jj = 1, jpj |
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| 321 | DO ji = 1, jpi |
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[97] | 322 | ztp1(ji,jj,jk) = ( zt1(ji,jj,jk) + zt1(ji,jj,jk+1) ) & |
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| 323 | & * ( 0.25 + SIGN( 0.25, zt1(ji,jj,jk) * zt1(ji,jj,jk+1) ) ) |
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| 324 | zsp1(ji,jj,jk) = ( zs1(ji,jj,jk) + zs1(ji,jj,jk+1) ) & |
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| 325 | & * ( 0.25 + SIGN( 0.25, zs1(ji,jj,jk) * zs1(ji,jj,jk+1) ) ) |
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[3] | 326 | END DO |
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| 327 | END DO |
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| 328 | END DO |
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| 329 | |
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| 330 | ! Slopes limitation |
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| 331 | ! interior values |
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| 332 | DO jk = 2, jpkm1 |
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| 333 | DO jj = 1, jpj |
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| 334 | DO ji = 1, jpi |
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| 335 | ztp1(ji,jj,jk) = SIGN( 1., ztp1(ji,jj,jk) ) & |
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| 336 | & * MIN( ABS( ztp1(ji,jj,jk ) ), & |
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| 337 | & 2.*ABS( zt1 (ji,jj,jk+1) ), & |
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| 338 | & 2.*ABS( zt1 (ji,jj,jk ) ) ) |
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| 339 | zsp1(ji,jj,jk) = SIGN( 1., zsp1(ji,jj,jk) ) & |
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| 340 | & * MIN( ABS( zsp1(ji,jj,jk ) ), & |
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| 341 | & 2.*ABS( zs1 (ji,jj,jk+1) ), & |
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| 342 | & 2.*ABS( zs1 (ji,jj,jk ) ) ) |
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| 343 | END DO |
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| 344 | END DO |
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| 345 | END DO |
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| 346 | ! surface values |
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[97] | 347 | ztp1(:,:,1) = 0.e0 |
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| 348 | zsp1(:,:,1) = 0.e0 |
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[3] | 349 | |
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| 350 | ! vertical advective flux |
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| 351 | ! interior values |
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| 352 | DO jk = 1, jpkm1 |
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| 353 | zstep = z2 * rdttra(jk) |
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| 354 | DO jj = 2, jpjm1 |
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| 355 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 356 | zew = zwn(ji,jj,jk+1) |
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| 357 | z0w = SIGN( 0.5, zwn(ji,jj,jk+1) ) |
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| 358 | zalpha = 0.5 + z0w |
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| 359 | zw = z0w - 0.5 * zwn(ji,jj,jk+1)*zstep / fse3w(ji,jj,jk+1) |
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| 360 | zzt1 = tb(ji,jj,jk+1) + zw*ztp1(ji,jj,jk+1) |
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| 361 | zzt2 = tb(ji,jj,jk ) + zw*ztp1(ji,jj,jk ) |
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| 362 | zzs1 = sb(ji,jj,jk+1) + zw*zsp1(ji,jj,jk+1) |
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| 363 | zzs2 = sb(ji,jj,jk ) + zw*zsp1(ji,jj,jk ) |
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| 364 | zt1(ji,jj,jk+1) = zew * ( zalpha * zzt1 + (1.-zalpha)*zzt2 ) |
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| 365 | zs1(ji,jj,jk+1) = zew * ( zalpha * zzs1 + (1.-zalpha)*zzs2 ) |
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| 366 | END DO |
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| 367 | END DO |
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| 368 | END DO |
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| 369 | ! surface values |
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| 370 | IF( lk_dynspg_fsc .OR. lk_dynspg_fsc_tsk ) THEN ! free surface-constant volume |
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| 371 | zt1(:,:, 1 ) = zwn(:,:,1) * tb(:,:,1) |
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| 372 | zs1(:,:, 1 ) = zwn(:,:,1) * sb(:,:,1) |
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[216] | 373 | ELSE ! rigid lid : flux set to zero |
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[3] | 374 | zt1(:,:, 1 ) = 0.e0 |
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| 375 | zs1(:,:, 1 ) = 0.e0 |
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| 376 | ENDIF |
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[216] | 377 | |
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[3] | 378 | ! bottom values |
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| 379 | zt1(:,:,jpk) = 0.e0 |
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| 380 | zs1(:,:,jpk) = 0.e0 |
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| 381 | |
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| 382 | |
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| 383 | ! Compute & add the vertical advective trend |
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| 384 | |
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| 385 | DO jk = 1, jpkm1 |
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| 386 | DO jj = 2, jpjm1 |
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| 387 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 388 | zbtr = 1. / fse3t(ji,jj,jk) |
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| 389 | ! horizontal advective trends |
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| 390 | zta = - zbtr * ( zt1(ji,jj,jk) - zt1(ji,jj,jk+1) ) |
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| 391 | zsa = - zbtr * ( zs1(ji,jj,jk) - zs1(ji,jj,jk+1) ) |
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| 392 | ! add it to the general tracer trends |
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| 393 | ta(ji,jj,jk) = ta(ji,jj,jk) + zta |
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| 394 | sa(ji,jj,jk) = sa(ji,jj,jk) + zsa |
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| 395 | END DO |
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| 396 | END DO |
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| 397 | END DO |
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| 398 | |
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[216] | 399 | ! Save the vertical advective trends for diagnostic |
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| 400 | |
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| 401 | IF( l_trdtra ) THEN |
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| 402 | ! Recompute the vertical advection zta & zsa trends computed |
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| 403 | ! at the step 2. above in making the difference between the new |
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| 404 | ! trends and the previous one: ta()/sa - ztdta()/ztdsa() and substract |
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| 405 | ! the term tn()/sn()*hdivn() to recover the W gradz(T/S) trends |
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| 406 | ztdta(:,:,:) = ta(:,:,:) - ztdta(:,:,:) - tn(:,:,:) * hdivn(:,:,:) |
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| 407 | ztdsa(:,:,:) = sa(:,:,:) - ztdsa(:,:,:) - sn(:,:,:) * hdivn(:,:,:) |
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| 408 | |
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| 409 | CALL trd_mod(ztdta, ztdsa, jpttdzad, 'TRA', kt) |
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| 410 | ENDIF |
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| 411 | |
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[106] | 412 | IF(l_ctl) THEN |
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| 413 | zta = SUM( ta(2:nictl,2:njctl,1:jpkm1) * tmask(2:nictl,2:njctl,1:jpkm1) ) |
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| 414 | zsa = SUM( sa(2:nictl,2:njctl,1:jpkm1) * tmask(2:nictl,2:njctl,1:jpkm1) ) |
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[3] | 415 | WRITE(numout,*) ' zad - Ta: ', zta-t_ctl, ' Sa: ', zsa-s_ctl, ' muscl' |
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| 416 | t_ctl = zta ; s_ctl = zsa |
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| 417 | ENDIF |
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| 418 | |
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| 419 | END SUBROUTINE tra_adv_muscl |
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| 420 | |
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| 421 | !!====================================================================== |
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| 422 | END MODULE traadv_muscl |
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