[6152] | 1 | |
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| 2 | MODULE wet_dry |
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| 3 | !!============================================================================== |
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| 4 | !! *** MODULE wet_dry *** |
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| 5 | !! Wetting and drying includes initialisation routine and routines to |
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| 6 | !! compute and apply flux limiters and preserve water depth positivity |
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| 7 | !! only effects if wetting/drying is on (ln_wd == .true.) |
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| 8 | !!============================================================================== |
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| 9 | !! History : |
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| 10 | !! NEMO 3.6 ! 2014-09 ((H.Liu) Original code |
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| 11 | !! ! will add the runoff and periodic BC case later |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | !! wad_lmt : Compute the horizontal flux limiter and the limited velocity |
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| 16 | !! when wetting and drying happens |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | USE oce ! ocean dynamics and tracers |
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| 19 | USE dom_oce ! ocean space and time domain |
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| 20 | USE sbc_oce, ONLY : ln_rnf ! surface boundary condition: ocean |
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| 21 | USE sbcrnf ! river runoff |
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| 22 | USE in_out_manager ! I/O manager |
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| 23 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 24 | USE lib_mpp ! MPP library |
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| 25 | USE wrk_nemo ! Memory Allocation |
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| 26 | USE timing ! Timing |
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| 27 | |
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| 28 | IMPLICIT NONE |
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| 29 | PRIVATE |
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| 30 | |
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| 31 | !!---------------------------------------------------------------------- |
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| 32 | !! critical depths,filters, limiters,and masks for Wetting and Drying |
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| 33 | !! --------------------------------------------------------------------- |
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| 34 | |
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| 35 | REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: wdmask !: u- and v- limiter |
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| 36 | |
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| 37 | LOGICAL, PUBLIC :: ln_wd !: Wetting/drying activation switch (T:on,F:off) |
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| 38 | REAL(wp), PUBLIC :: rn_wdmin1 !: minimum water depth on dried cells |
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| 39 | REAL(wp), PUBLIC :: rn_wdmin2 !: tolerrance of minimum water depth on dried cells |
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| 40 | REAL(wp), PUBLIC :: rn_wdld !: land elevation below which wetting/drying |
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| 41 | !: will be considered |
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| 42 | INTEGER , PUBLIC :: nn_wdit !: maximum number of iteration for W/D limiter |
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| 43 | |
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| 44 | PUBLIC wad_init ! initialisation routine called by step.F90 |
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| 45 | PUBLIC wad_lmt ! routine called by sshwzv.F90 |
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| 46 | PUBLIC wad_lmt_bt ! routine called by dynspg_ts.F90 |
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[7397] | 47 | PUBLIC wad_istate ! routine called by istate.F90 and domvvl.F90 |
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[6152] | 48 | |
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| 49 | !! * Substitutions |
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| 50 | # include "vectopt_loop_substitute.h90" |
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| 51 | CONTAINS |
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| 52 | |
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| 53 | SUBROUTINE wad_init |
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| 54 | !!---------------------------------------------------------------------- |
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| 55 | !! *** ROUTINE wad_init *** |
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| 56 | !! |
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| 57 | !! ** Purpose : read wetting and drying namelist and print the variables. |
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| 58 | !! |
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| 59 | !! ** input : - namwad namelist |
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| 60 | !!---------------------------------------------------------------------- |
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| 61 | NAMELIST/namwad/ ln_wd, rn_wdmin1, rn_wdmin2, rn_wdld, nn_wdit |
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| 62 | INTEGER :: ios ! Local integer output status for namelist read |
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| 63 | INTEGER :: ierr ! Local integer status array allocation |
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| 64 | !!---------------------------------------------------------------------- |
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| 65 | |
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| 66 | REWIND( numnam_ref ) ! Namelist namwad in reference namelist |
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| 67 | ! : Parameters for Wetting/Drying |
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| 68 | READ ( numnam_ref, namwad, IOSTAT = ios, ERR = 905) |
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| 69 | 905 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namwad in reference namelist', .TRUE.) |
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| 70 | REWIND( numnam_cfg ) ! Namelist namwad in configuration namelist |
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| 71 | ! : Parameters for Wetting/Drying |
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| 72 | READ ( numnam_cfg, namwad, IOSTAT = ios, ERR = 906) |
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| 73 | 906 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namwad in configuration namelist', .TRUE. ) |
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| 74 | IF(lwm) WRITE ( numond, namwad ) |
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| 75 | |
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| 76 | IF(lwp) THEN ! control print |
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| 77 | WRITE(numout,*) |
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| 78 | WRITE(numout,*) 'wad_init : Wetting and drying initialization through namelist read' |
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| 79 | WRITE(numout,*) '~~~~~~~ ' |
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| 80 | WRITE(numout,*) ' Namelist namwad' |
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| 81 | WRITE(numout,*) ' Logical activation ln_wd = ', ln_wd |
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| 82 | WRITE(numout,*) ' Minimum wet depth on dried cells rn_wdmin1 = ', rn_wdmin1 |
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| 83 | WRITE(numout,*) ' Tolerance of min wet depth rn_wdmin2 = ', rn_wdmin2 |
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| 84 | WRITE(numout,*) ' land elevation threshold rn_wdld = ', rn_wdld |
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| 85 | WRITE(numout,*) ' Max iteration for W/D limiter nn_wdit = ', nn_wdit |
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| 86 | ENDIF |
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| 87 | |
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| 88 | IF(ln_wd) THEN |
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[7397] | 89 | ALLOCATE( wdmask(jpi,jpj), STAT=ierr ) |
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[6152] | 90 | IF( ierr /= 0 ) CALL ctl_stop('STOP', 'wad_init : Array allocation error') |
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| 91 | ENDIF |
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| 92 | END SUBROUTINE wad_init |
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| 93 | |
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| 94 | SUBROUTINE wad_lmt( sshb1, sshemp, z2dt ) |
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| 95 | !!---------------------------------------------------------------------- |
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| 96 | !! *** ROUTINE wad_lmt *** |
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| 97 | !! |
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| 98 | !! ** Purpose : generate flux limiters for wetting/drying |
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| 99 | !! |
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| 100 | !! ** Method : - Prevent negative depth occurring (Not ready for Agrif) |
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| 101 | !! |
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| 102 | !! ** Action : - calculate flux limiter and W/D flag |
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| 103 | !!---------------------------------------------------------------------- |
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| 104 | REAL(wp), DIMENSION(:,:), INTENT(inout) :: sshb1 |
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| 105 | REAL(wp), DIMENSION(:,:), INTENT(in) :: sshemp |
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| 106 | REAL(wp), INTENT(in) :: z2dt |
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| 107 | ! |
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| 108 | INTEGER :: ji, jj, jk, jk1 ! dummy loop indices |
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| 109 | INTEGER :: zflag ! local scalar |
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| 110 | REAL(wp) :: zcoef, zdep1, zdep2 ! local scalars |
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| 111 | REAL(wp) :: zzflxp, zzflxn ! local scalars |
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| 112 | REAL(wp) :: zdepwd ! local scalar, always wet cell depth |
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| 113 | REAL(wp) :: ztmp ! local scalars |
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| 114 | REAL(wp), POINTER, DIMENSION(:,:) :: zwdlmtu, zwdlmtv !: W/D flux limiters |
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| 115 | REAL(wp), POINTER, DIMENSION(:,:) :: zflxp, zflxn ! local 2D workspace |
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| 116 | REAL(wp), POINTER, DIMENSION(:,:) :: zflxu, zflxv ! local 2D workspace |
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| 117 | REAL(wp), POINTER, DIMENSION(:,:) :: zflxu1, zflxv1 ! local 2D workspace |
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| 118 | |
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| 119 | !!---------------------------------------------------------------------- |
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| 120 | ! |
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| 121 | |
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| 122 | IF( nn_timing == 1 ) CALL timing_start('wad_lmt') |
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| 123 | |
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| 124 | IF(ln_wd) THEN |
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| 125 | |
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| 126 | CALL wrk_alloc( jpi, jpj, zflxp, zflxn, zflxu, zflxv, zflxu1, zflxv1 ) |
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| 127 | CALL wrk_alloc( jpi, jpj, zwdlmtu, zwdlmtv) |
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| 128 | ! |
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| 129 | |
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| 130 | !IF(lwp) WRITE(numout,*) |
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| 131 | !IF(lwp) WRITE(numout,*) 'wad_lmt : wetting/drying limiters and velocity limiting' |
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| 132 | |
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| 133 | zflag = 0 |
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| 134 | zdepwd = 50._wp !maximum depth on which that W/D could possibly happen |
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| 135 | |
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| 136 | |
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| 137 | zflxp(:,:) = 0._wp |
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| 138 | zflxn(:,:) = 0._wp |
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| 139 | zflxu(:,:) = 0._wp |
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| 140 | zflxv(:,:) = 0._wp |
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| 141 | |
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| 142 | zwdlmtu(:,:) = 1._wp |
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| 143 | zwdlmtv(:,:) = 1._wp |
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| 144 | |
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| 145 | ! Horizontal Flux in u and v direction |
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| 146 | DO jk = 1, jpkm1 |
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[7397] | 147 | DO jj = 1, jpj |
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| 148 | DO ji = 1, jpi |
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[6152] | 149 | zflxu(ji,jj) = zflxu(ji,jj) + e3u_n(ji,jj,jk) * un(ji,jj,jk) * umask(ji,jj,jk) |
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| 150 | zflxv(ji,jj) = zflxv(ji,jj) + e3v_n(ji,jj,jk) * vn(ji,jj,jk) * vmask(ji,jj,jk) |
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| 151 | END DO |
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| 152 | END DO |
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| 153 | END DO |
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| 154 | |
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| 155 | zflxu(:,:) = zflxu(:,:) * e2u(:,:) |
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| 156 | zflxv(:,:) = zflxv(:,:) * e1v(:,:) |
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| 157 | |
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[7397] | 158 | wdmask(:,:) = 1 |
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| 159 | DO jj = 2, jpj |
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| 160 | DO ji = 2, jpi |
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[6152] | 161 | |
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| 162 | IF(tmask(ji, jj, 1) < 0.5_wp) CYCLE ! we don't care about land cells |
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| 163 | IF(bathy(ji,jj) > zdepwd) CYCLE ! and cells which will unlikely go dried out |
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| 164 | |
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| 165 | zflxp(ji,jj) = max(zflxu(ji,jj), 0._wp) - min(zflxu(ji-1,jj), 0._wp) + & |
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| 166 | & max(zflxv(ji,jj), 0._wp) - min(zflxv(ji, jj-1), 0._wp) |
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| 167 | zflxn(ji,jj) = min(zflxu(ji,jj), 0._wp) - max(zflxu(ji-1,jj), 0._wp) + & |
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| 168 | & min(zflxv(ji,jj), 0._wp) - max(zflxv(ji, jj-1), 0._wp) |
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| 169 | |
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| 170 | zdep2 = bathy(ji,jj) + sshb1(ji,jj) - rn_wdmin1 |
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[7397] | 171 | IF(zdep2 .le. 0._wp) THEN !add more safty, but not necessary |
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[6152] | 172 | !zdep2 = 0._wp |
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| 173 | sshb1(ji,jj) = rn_wdmin1 - bathy(ji,jj) |
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[7397] | 174 | wdmask(ji,jj) = 0._wp |
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[6152] | 175 | END IF |
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| 176 | ENDDO |
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| 177 | END DO |
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| 178 | |
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| 179 | |
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| 180 | !! start limiter iterations |
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| 181 | DO jk1 = 1, nn_wdit + 1 |
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| 182 | |
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| 183 | |
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| 184 | zflxu1(:,:) = zflxu(:,:) * zwdlmtu(:,:) |
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| 185 | zflxv1(:,:) = zflxv(:,:) * zwdlmtv(:,:) |
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| 186 | |
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[7397] | 187 | DO jj = 2, jpj |
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| 188 | DO ji = 2, jpi |
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[6152] | 189 | |
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| 190 | IF(tmask(ji, jj, 1) < 0.5_wp) CYCLE |
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| 191 | IF(bathy(ji,jj) > zdepwd) CYCLE |
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| 192 | |
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| 193 | ztmp = e1e2t(ji,jj) |
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| 194 | |
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| 195 | zzflxp = max(zflxu1(ji,jj), 0._wp) - min(zflxu1(ji-1,jj), 0._wp) + & |
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| 196 | & max(zflxv1(ji,jj), 0._wp) - min(zflxv1(ji, jj-1), 0._wp) |
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| 197 | zzflxn = min(zflxu1(ji,jj), 0._wp) - max(zflxu1(ji-1,jj), 0._wp) + & |
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| 198 | & min(zflxv1(ji,jj), 0._wp) - max(zflxv1(ji, jj-1), 0._wp) |
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| 199 | |
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| 200 | zdep1 = (zzflxp + zzflxn) * z2dt / ztmp |
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| 201 | zdep2 = bathy(ji,jj) + sshb1(ji,jj) - rn_wdmin1 - z2dt * sshemp(ji,jj) ! this one can be moved out of the loop |
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| 202 | |
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| 203 | IF(zdep1 > zdep2) THEN |
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| 204 | zflag = 1 |
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[7397] | 205 | wdmask(ji, jj) = 0 |
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[6152] | 206 | zcoef = ( ( zdep2 - rn_wdmin2 ) * ztmp - zzflxn * z2dt ) / ( zflxp(ji,jj) * z2dt ) |
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| 207 | zcoef = max(zcoef, 0._wp) |
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| 208 | IF(jk1 > nn_wdit) zcoef = 0._wp |
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| 209 | IF(zflxu1(ji, jj) > 0._wp) zwdlmtu(ji ,jj) = zcoef |
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| 210 | IF(zflxu1(ji-1,jj) < 0._wp) zwdlmtu(ji-1,jj) = zcoef |
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| 211 | IF(zflxv1(ji, jj) > 0._wp) zwdlmtv(ji ,jj) = zcoef |
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[7397] | 212 | IF(zflxv1(ji,jj-1) < 0._wp) zwdlmtv(ji,jj-1) = zcoef |
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[6152] | 213 | END IF |
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| 214 | END DO ! ji loop |
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| 215 | END DO ! jj loop |
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| 216 | |
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| 217 | CALL lbc_lnk( zwdlmtu, 'U', 1. ) |
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| 218 | CALL lbc_lnk( zwdlmtv, 'V', 1. ) |
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| 219 | |
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| 220 | IF(lk_mpp) CALL mpp_max(zflag) !max over the global domain |
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| 221 | |
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| 222 | IF(zflag == 0) EXIT |
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| 223 | |
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| 224 | zflag = 0 ! flag indicating if any further iteration is needed? |
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| 225 | END DO ! jk1 loop |
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| 226 | |
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| 227 | DO jk = 1, jpkm1 |
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| 228 | un(:,:,jk) = un(:,:,jk) * zwdlmtu(:, :) |
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| 229 | vn(:,:,jk) = vn(:,:,jk) * zwdlmtv(:, :) |
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| 230 | END DO |
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| 231 | |
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| 232 | CALL lbc_lnk( un, 'U', -1. ) |
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| 233 | CALL lbc_lnk( vn, 'V', -1. ) |
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[7397] | 234 | ! |
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| 235 | un_b(:,:) = un_b(:,:) * zwdlmtu(:, :) |
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| 236 | vn_b(:,:) = vn_b(:,:) * zwdlmtv(:, :) |
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| 237 | CALL lbc_lnk( un_b, 'U', -1. ) |
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| 238 | CALL lbc_lnk( vn_b, 'V', -1. ) |
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[6152] | 239 | |
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| 240 | IF(zflag == 1 .AND. lwp) WRITE(numout,*) 'Need more iterations in wad_lmt!!!' |
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| 241 | |
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| 242 | !IF( ln_rnf ) CALL sbc_rnf_div( hdivn ) ! runoffs (update hdivn field) |
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| 243 | !IF( nn_cla == 1 ) CALL cla_div ( kt ) ! Cross Land Advection (update hdivn field) |
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| 244 | ! |
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| 245 | ! |
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| 246 | CALL wrk_dealloc( jpi, jpj, zflxp, zflxn, zflxu, zflxv, zflxu1, zflxv1 ) |
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| 247 | CALL wrk_dealloc( jpi, jpj, zwdlmtu, zwdlmtv) |
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| 248 | ! |
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| 249 | END IF |
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| 250 | |
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| 251 | IF( nn_timing == 1 ) CALL timing_stop('wad_lmt') |
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| 252 | END SUBROUTINE wad_lmt |
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| 253 | |
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| 254 | SUBROUTINE wad_lmt_bt( zflxu, zflxv, sshn_e, zssh_frc, rdtbt ) |
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| 255 | !!---------------------------------------------------------------------- |
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| 256 | !! *** ROUTINE wad_lmt *** |
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| 257 | !! |
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| 258 | !! ** Purpose : limiting flux in the barotropic stepping (dynspg_ts) |
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| 259 | !! |
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| 260 | !! ** Method : - Prevent negative depth occurring (Not ready for Agrif) |
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| 261 | !! |
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| 262 | !! ** Action : - calculate flux limiter and W/D flag |
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| 263 | !!---------------------------------------------------------------------- |
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| 264 | REAL(wp), INTENT(in) :: rdtbt ! ocean time-step index |
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| 265 | REAL(wp), DIMENSION(:,:), INTENT(inout) :: zflxu, zflxv, sshn_e, zssh_frc |
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| 266 | ! |
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| 267 | INTEGER :: ji, jj, jk, jk1 ! dummy loop indices |
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| 268 | INTEGER :: zflag ! local scalar |
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| 269 | REAL(wp) :: z2dt |
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| 270 | REAL(wp) :: zcoef, zdep1, zdep2 ! local scalars |
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| 271 | REAL(wp) :: zzflxp, zzflxn ! local scalars |
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| 272 | REAL(wp) :: zdepwd ! local scalar, always wet cell depth |
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| 273 | REAL(wp) :: ztmp ! local scalars |
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| 274 | REAL(wp), POINTER, DIMENSION(:,:) :: zwdlmtu, zwdlmtv !: W/D flux limiters |
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| 275 | REAL(wp), POINTER, DIMENSION(:,:) :: zflxp, zflxn ! local 2D workspace |
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| 276 | REAL(wp), POINTER, DIMENSION(:,:) :: zflxu1, zflxv1 ! local 2D workspace |
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| 277 | |
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| 278 | !!---------------------------------------------------------------------- |
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| 279 | ! |
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| 280 | |
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| 281 | IF( nn_timing == 1 ) CALL timing_start('wad_lmt_bt') |
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| 282 | |
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| 283 | IF(ln_wd) THEN |
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| 284 | |
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| 285 | CALL wrk_alloc( jpi, jpj, zflxp, zflxn, zflxu1, zflxv1 ) |
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| 286 | CALL wrk_alloc( jpi, jpj, zwdlmtu, zwdlmtv) |
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| 287 | ! |
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| 288 | |
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| 289 | !IF(lwp) WRITE(numout,*) |
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| 290 | !IF(lwp) WRITE(numout,*) 'wad_lmt_bt : wetting/drying limiters and velocity limiting' |
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| 291 | |
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| 292 | zflag = 0 |
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| 293 | zdepwd = 50._wp !maximum depth that ocean cells can have W/D processes |
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| 294 | |
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| 295 | z2dt = rdtbt |
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| 296 | |
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| 297 | zflxp(:,:) = 0._wp |
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| 298 | zflxn(:,:) = 0._wp |
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| 299 | |
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| 300 | zwdlmtu(:,:) = 1._wp |
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| 301 | zwdlmtv(:,:) = 1._wp |
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| 302 | |
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| 303 | ! Horizontal Flux in u and v direction |
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| 304 | |
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[7397] | 305 | DO jj = 2, jpj |
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| 306 | DO ji = 2, jpi |
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[6152] | 307 | |
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| 308 | IF(tmask(ji, jj, 1) < 0.5_wp) CYCLE ! we don't care about land cells |
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| 309 | IF(bathy(ji,jj) > zdepwd) CYCLE ! and cells which will unlikely go dried out |
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| 310 | |
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| 311 | zflxp(ji,jj) = max(zflxu(ji,jj), 0._wp) - min(zflxu(ji-1,jj), 0._wp) + & |
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| 312 | & max(zflxv(ji,jj), 0._wp) - min(zflxv(ji, jj-1), 0._wp) |
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| 313 | zflxn(ji,jj) = min(zflxu(ji,jj), 0._wp) - max(zflxu(ji-1,jj), 0._wp) + & |
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| 314 | & min(zflxv(ji,jj), 0._wp) - max(zflxv(ji, jj-1), 0._wp) |
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| 315 | |
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| 316 | zdep2 = bathy(ji,jj) + sshn_e(ji,jj) - rn_wdmin1 |
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| 317 | ENDDO |
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| 318 | END DO |
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| 319 | |
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| 320 | |
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| 321 | !! start limiter iterations |
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| 322 | DO jk1 = 1, nn_wdit + 1 |
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| 323 | |
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| 324 | |
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| 325 | zflxu1(:,:) = zflxu(:,:) * zwdlmtu(:,:) |
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| 326 | zflxv1(:,:) = zflxv(:,:) * zwdlmtv(:,:) |
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| 327 | |
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[7397] | 328 | DO jj = 2, jpj |
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| 329 | DO ji = 2, jpi |
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[6152] | 330 | |
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| 331 | IF(tmask(ji, jj, 1) < 0.5_wp) CYCLE |
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| 332 | IF(bathy(ji,jj) > zdepwd) CYCLE |
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| 333 | |
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| 334 | ztmp = e1e2t(ji,jj) |
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| 335 | |
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| 336 | zzflxp = max(zflxu1(ji,jj), 0._wp) - min(zflxu1(ji-1,jj), 0._wp) + & |
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| 337 | & max(zflxv1(ji,jj), 0._wp) - min(zflxv1(ji, jj-1), 0._wp) |
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| 338 | zzflxn = min(zflxu1(ji,jj), 0._wp) - max(zflxu1(ji-1,jj), 0._wp) + & |
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| 339 | & min(zflxv1(ji,jj), 0._wp) - max(zflxv1(ji, jj-1), 0._wp) |
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| 340 | |
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| 341 | zdep1 = (zzflxp + zzflxn) * z2dt / ztmp |
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| 342 | zdep2 = bathy(ji,jj) + sshn_e(ji,jj) - rn_wdmin1 ! this one can be moved out of the loop |
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| 343 | zdep2 = zdep2 - z2dt * zssh_frc(ji,jj) |
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| 344 | |
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| 345 | IF(zdep1 > zdep2) THEN |
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| 346 | zflag = 1 |
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| 347 | zcoef = ( ( zdep2 - rn_wdmin2 ) * ztmp - zzflxn * z2dt ) / ( zflxp(ji,jj) * z2dt ) |
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| 348 | zcoef = max(zcoef, 0._wp) |
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| 349 | IF(jk1 > nn_wdit) zcoef = 0._wp |
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| 350 | IF(zflxu1(ji, jj) > 0._wp) zwdlmtu(ji ,jj) = zcoef |
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| 351 | IF(zflxu1(ji-1,jj) < 0._wp) zwdlmtu(ji-1,jj) = zcoef |
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| 352 | IF(zflxv1(ji, jj) > 0._wp) zwdlmtv(ji ,jj) = zcoef |
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[7397] | 353 | IF(zflxv1(ji,jj-1) < 0._wp) zwdlmtv(ji,jj-1) = zcoef |
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[6152] | 354 | END IF |
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| 355 | END DO ! ji loop |
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| 356 | END DO ! jj loop |
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| 357 | |
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| 358 | CALL lbc_lnk( zwdlmtu, 'U', 1. ) |
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| 359 | CALL lbc_lnk( zwdlmtv, 'V', 1. ) |
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| 360 | |
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| 361 | IF(lk_mpp) CALL mpp_max(zflag) !max over the global domain |
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| 362 | |
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| 363 | IF(zflag == 0) EXIT |
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| 364 | |
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| 365 | zflag = 0 ! flag indicating if any further iteration is needed? |
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| 366 | END DO ! jk1 loop |
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| 367 | |
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| 368 | zflxu(:,:) = zflxu(:,:) * zwdlmtu(:, :) |
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| 369 | zflxv(:,:) = zflxv(:,:) * zwdlmtv(:, :) |
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| 370 | |
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| 371 | CALL lbc_lnk( zflxu, 'U', -1. ) |
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| 372 | CALL lbc_lnk( zflxv, 'V', -1. ) |
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| 373 | |
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| 374 | IF(zflag == 1 .AND. lwp) WRITE(numout,*) 'Need more iterations in wad_lmt_bt!!!' |
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| 375 | |
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| 376 | ! |
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| 377 | ! |
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| 378 | CALL wrk_dealloc( jpi, jpj, zflxp, zflxn, zflxu1, zflxv1 ) |
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| 379 | CALL wrk_dealloc( jpi, jpj, zwdlmtu, zwdlmtv) |
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| 380 | ! |
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| 381 | END IF |
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| 382 | |
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| 383 | IF( nn_timing == 1 ) CALL timing_stop('wad_lmt') |
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| 384 | END SUBROUTINE wad_lmt_bt |
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[7397] | 385 | |
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| 386 | SUBROUTINE wad_istate |
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| 387 | !!---------------------------------------------------------------------- |
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| 388 | !! *** ROUTINE wad_istate *** |
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| 389 | !! |
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| 390 | !! ** Purpose : Initialization of the dynamics and tracers for WAD test |
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| 391 | !! configurations (channels or bowls with initial ssh gradients) |
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| 392 | !! |
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| 393 | !! ** Method : - set temperature field |
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| 394 | !! - set salinity field |
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| 395 | !! - set ssh slope (needs to be repeated in domvvl_rst_init to |
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| 396 | !! set vertical metrics ) |
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| 397 | !!---------------------------------------------------------------------- |
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| 398 | ! |
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| 399 | INTEGER :: ji, jj ! dummy loop indices |
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| 400 | REAL(wp) :: zi, zj |
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| 401 | !!---------------------------------------------------------------------- |
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| 402 | ! |
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| 403 | ! Uniform T & S in all test cases |
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| 404 | tsn(:,:,:,jp_tem) = 10._wp |
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| 405 | tsb(:,:,:,jp_tem) = 10._wp |
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| 406 | tsn(:,:,:,jp_sal) = 35._wp |
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| 407 | tsb(:,:,:,jp_sal) = 35._wp |
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| 408 | SELECT CASE ( jp_cfg ) |
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| 409 | ! ! ==================== |
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| 410 | CASE ( 1 ) ! WAD 1 configuration |
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| 411 | ! ! ==================== |
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| 412 | ! |
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| 413 | IF(lwp) WRITE(numout,*) |
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| 414 | IF(lwp) WRITE(numout,*) 'istate_wad : Closed box with EW linear bottom slope' |
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| 415 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 416 | ! |
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| 417 | do ji = 1,jpi |
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| 418 | sshn(ji,:) = ( -5.5_wp + 5.5_wp*FLOAT(mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 419 | end do |
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| 420 | ! ! ==================== |
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| 421 | CASE ( 2 ) ! WAD 2 configuration |
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| 422 | ! ! ==================== |
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| 423 | ! |
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| 424 | IF(lwp) WRITE(numout,*) |
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| 425 | IF(lwp) WRITE(numout,*) 'istate_wad : Parobolic EW channel, mid-range initial ssh slope' |
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| 426 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 427 | ! |
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| 428 | do ji = 1,jpi |
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| 429 | sshn(ji,:) = ( -5.5_wp + 3.9_wp*FLOAT(jpidta - mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 430 | end do |
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| 431 | ! ! ==================== |
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| 432 | CASE ( 3 ) ! WAD 3 configuration |
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| 433 | ! ! ==================== |
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| 434 | ! |
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| 435 | IF(lwp) WRITE(numout,*) |
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| 436 | IF(lwp) WRITE(numout,*) 'istate_wad : Parobolic EW channel, extreme initial ssh slope' |
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| 437 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 438 | ! |
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| 439 | do ji = 1,jpi |
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| 440 | sshn(ji,:) = ( -7.5_wp + 6.9_wp*FLOAT(jpidta - mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 441 | end do |
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| 442 | |
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| 443 | ! |
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| 444 | ! ! ==================== |
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| 445 | CASE ( 4 ) ! WAD 4 configuration |
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| 446 | ! ! ==================== |
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| 447 | ! |
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| 448 | IF(lwp) WRITE(numout,*) |
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| 449 | IF(lwp) WRITE(numout,*) 'istate_wad : Parobolic bowl, mid-range initial ssh slope' |
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| 450 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 451 | ! |
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| 452 | DO ji = 1, jpi |
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| 453 | zi = MAX(1.0-FLOAT((mig(ji)-25)**2)/400.0, 0.0 ) |
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| 454 | DO jj = 1, jpj |
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| 455 | zj = MAX(1.0-FLOAT((mjg(jj)-17)**2)/144.0, 0.0 ) |
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| 456 | sshn(ji,jj) = -8.5_wp + 8.5_wp*zi*zj |
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| 457 | END DO |
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| 458 | END DO |
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| 459 | |
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| 460 | ! |
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| 461 | ! ! =========================== |
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| 462 | CASE ( 5 ) ! WAD 5 configuration |
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| 463 | ! ! ==================== |
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| 464 | ! |
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| 465 | IF(lwp) WRITE(numout,*) |
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| 466 | IF(lwp) WRITE(numout,*) 'istate_wad : Double slope with shelf' |
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| 467 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 468 | ! |
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| 469 | ! Needed rn_wdmin2 increased to 0.01 for this case? |
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| 470 | do ji = 1,jpi |
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| 471 | sshn(ji,:) = ( -5.5_wp + 9.0_wp*FLOAT(mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 472 | end do |
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| 473 | |
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| 474 | ! |
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| 475 | ! ! =========================== |
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| 476 | CASE ( 6 ) ! WAD 6 configuration |
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| 477 | ! ! ==================== |
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| 478 | ! |
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| 479 | IF(lwp) WRITE(numout,*) |
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| 480 | IF(lwp) WRITE(numout,*) 'istate_wad : Parobolic EW channel with gaussian ridge' |
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| 481 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 482 | ! |
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| 483 | do ji = 1,jpi |
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| 484 | !6a |
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| 485 | sshn(ji,:) = ( -5.5_wp + 9.0_wp*FLOAT(jpidta - mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 486 | !Some variations in initial slope that have been tested |
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| 487 | !6b |
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| 488 | !sshn(ji,:) = ( -5.5_wp + 6.5_wp*FLOAT(jpidta - mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 489 | !6c |
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| 490 | !sshn(ji,:) = ( -5.5_wp + 7.5_wp*FLOAT(jpidta - mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 491 | !6d |
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| 492 | !sshn(ji,:) = ( -4.5_wp + 8.0_wp*FLOAT(jpidta - mig(ji))/FLOAT(jpidta-1))*tmask(ji,:,1) |
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| 493 | end do |
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| 494 | |
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| 495 | ! |
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| 496 | ! ! =========================== |
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| 497 | CASE DEFAULT ! NONE existing configuration |
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| 498 | ! ! =========================== |
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| 499 | WRITE(ctmp1,*) 'WAD test with a ', jp_cfg,' option is not coded' |
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| 500 | ! |
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| 501 | CALL ctl_stop( ctmp1 ) |
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| 502 | ! |
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| 503 | END SELECT |
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| 504 | ! |
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| 505 | ! Apply minimum wetdepth criterion |
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| 506 | ! |
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| 507 | do jj = 1,jpj |
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| 508 | do ji = 1,jpi |
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| 509 | IF( bathy(ji,jj) + sshn(ji,jj) < rn_wdmin1 ) THEN |
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| 510 | sshn(ji,jj) = tmask(ji,jj,1)*( rn_wdmin1 - bathy(ji,jj) ) |
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| 511 | ENDIF |
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| 512 | end do |
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| 513 | end do |
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| 514 | sshb = sshn |
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| 515 | ssha = sshn |
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| 516 | ! |
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| 517 | END SUBROUTINE wad_istate |
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| 518 | |
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| 519 | !!===================================================================== |
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[6152] | 520 | END MODULE wet_dry |
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