[825] | 1 | MODULE limtrp |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE limtrp *** |
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| 4 | !! LIM transport ice model : sea-ice advection/diffusion |
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| 5 | !!====================================================================== |
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[2715] | 6 | !! History : LIM-2 ! 2000-01 (M.A. Morales Maqueda, H. Goosse, and T. Fichefet) Original code |
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| 7 | !! 3.0 ! 2005-11 (M. Vancoppenolle) Multi-layer sea ice, salinity variations |
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| 8 | !! 4.0 ! 2011-02 (G. Madec) dynamical allocation |
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| 9 | !!---------------------------------------------------------------------- |
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[825] | 10 | #if defined key_lim3 |
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| 11 | !!---------------------------------------------------------------------- |
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[834] | 12 | !! 'key_lim3' LIM3 sea-ice model |
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[825] | 13 | !!---------------------------------------------------------------------- |
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| 14 | !! lim_trp : advection/diffusion process of sea ice |
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| 15 | !!---------------------------------------------------------------------- |
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[3625] | 16 | USE phycst ! physical constant |
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| 17 | USE dom_oce ! ocean domain |
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| 18 | USE sbc_oce ! ocean surface boundary condition |
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| 19 | USE dom_ice ! ice domain |
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| 20 | USE ice ! ice variables |
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| 21 | USE limadv ! ice advection |
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| 22 | USE limhdf ! ice horizontal diffusion |
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[5123] | 23 | USE limvar ! |
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| 24 | ! |
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[3625] | 25 | USE in_out_manager ! I/O manager |
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| 26 | USE lbclnk ! lateral boundary conditions -- MPP exchanges |
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| 27 | USE lib_mpp ! MPP library |
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| 28 | USE wrk_nemo ! work arrays |
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| 29 | USE prtctl ! Print control |
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| 30 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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[5123] | 31 | USE timing ! Timing |
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[4688] | 32 | USE limcons ! conservation tests |
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[5123] | 33 | USE limctl ! control prints |
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[825] | 34 | |
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| 35 | IMPLICIT NONE |
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| 36 | PRIVATE |
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| 37 | |
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[5123] | 38 | PUBLIC lim_trp ! called by sbcice_lim |
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[825] | 39 | |
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[5123] | 40 | INTEGER :: ncfl ! number of ice time step with CFL>1/2 |
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| 41 | |
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[825] | 42 | !! * Substitution |
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| 43 | # include "vectopt_loop_substitute.h90" |
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| 44 | !!---------------------------------------------------------------------- |
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[4161] | 45 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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[1156] | 46 | !! $Id$ |
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[2715] | 47 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[825] | 48 | !!---------------------------------------------------------------------- |
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| 49 | CONTAINS |
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| 50 | |
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[921] | 51 | SUBROUTINE lim_trp( kt ) |
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[825] | 52 | !!------------------------------------------------------------------- |
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| 53 | !! *** ROUTINE lim_trp *** |
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| 54 | !! |
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| 55 | !! ** purpose : advection/diffusion process of sea ice |
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| 56 | !! |
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| 57 | !! ** method : variables included in the process are scalar, |
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| 58 | !! other values are considered as second order. |
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| 59 | !! For advection, a second order Prather scheme is used. |
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| 60 | !! |
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| 61 | !! ** action : |
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| 62 | !!--------------------------------------------------------------------- |
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[5123] | 63 | INTEGER, INTENT(in) :: kt ! number of iteration |
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[2715] | 64 | ! |
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[5123] | 65 | INTEGER :: ji, jj, jk, jl, jt ! dummy loop indices |
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[2715] | 66 | INTEGER :: initad ! number of sub-timestep for the advection |
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[4990] | 67 | REAL(wp) :: zcfl , zusnit ! - - |
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[5123] | 68 | CHARACTER(len=80) :: cltmp |
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[2715] | 69 | ! |
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[5134] | 70 | REAL(wp), POINTER, DIMENSION(:,:) :: zsm |
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| 71 | REAL(wp), POINTER, DIMENSION(:,:,:) :: z0ice, z0snw, z0ai, z0es , z0smi , z0oi |
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| 72 | REAL(wp), POINTER, DIMENSION(:,:,:) :: z0opw |
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| 73 | REAL(wp), POINTER, DIMENSION(:,:,:,:) :: z0ei |
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[5123] | 74 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zviold, zvsold, zsmvold ! old ice volume... |
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| 75 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zhimax ! old ice thickness |
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| 76 | REAL(wp), POINTER, DIMENSION(:,:) :: zatold, zeiold, zesold ! old concentration, enthalpies |
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| 77 | REAL(wp) :: zdv, zvi, zvs, zsmv, zes, zei |
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| 78 | REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b |
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[2715] | 79 | !!--------------------------------------------------------------------- |
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[4161] | 80 | IF( nn_timing == 1 ) CALL timing_start('limtrp') |
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[825] | 81 | |
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[5180] | 82 | CALL wrk_alloc( jpi,jpj, zsm, zatold, zeiold, zesold ) |
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| 83 | CALL wrk_alloc( jpi,jpj,jpl, z0ice, z0snw, z0ai, z0es , z0smi , z0oi ) |
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| 84 | CALL wrk_alloc( jpi,jpj,1, z0opw ) |
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| 85 | CALL wrk_alloc( jpi,jpj,nlay_i,jpl, z0ei ) |
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| 86 | CALL wrk_alloc( jpi,jpj,jpl, zhimax, zviold, zvsold, zsmvold ) |
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[825] | 87 | |
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[2715] | 88 | IF( numit == nstart .AND. lwp ) THEN |
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| 89 | WRITE(numout,*) |
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| 90 | IF( ln_limdyn ) THEN ; WRITE(numout,*) 'lim_trp : Ice transport ' |
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| 91 | ELSE ; WRITE(numout,*) 'lim_trp : No ice advection as ln_limdyn = ', ln_limdyn |
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| 92 | ENDIF |
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| 93 | WRITE(numout,*) '~~~~~~~~~~~~' |
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[5123] | 94 | ncfl = 0 ! nb of time step with CFL > 1/2 |
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[2715] | 95 | ENDIF |
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[5123] | 96 | |
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[5836] | 97 | zsm(:,:) = e1e2t(:,:) |
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[2715] | 98 | |
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| 99 | ! !-------------------------------------! |
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| 100 | IF( ln_limdyn ) THEN ! Advection of sea ice properties ! |
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| 101 | ! !-------------------------------------! |
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[4688] | 102 | |
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| 103 | ! conservation test |
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[5123] | 104 | IF( ln_limdiahsb ) CALL lim_cons_hsm(0, 'limtrp', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[4688] | 105 | |
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[5123] | 106 | ! mass and salt flux init |
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[4161] | 107 | zviold(:,:,:) = v_i(:,:,:) |
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[5123] | 108 | zvsold(:,:,:) = v_s(:,:,:) |
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| 109 | zsmvold(:,:,:) = smv_i(:,:,:) |
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| 110 | zeiold(:,:) = SUM( SUM( e_i(:,:,1:nlay_i,:), dim=4 ), dim=3 ) |
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| 111 | zesold(:,:) = SUM( SUM( e_s(:,:,1:nlay_s,:), dim=4 ), dim=3 ) |
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[825] | 112 | |
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[5123] | 113 | !--- Thickness correction init. ------------------------------- |
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| 114 | zatold(:,:) = SUM( a_i(:,:,:), dim=3 ) |
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[5167] | 115 | DO jl = 1, jpl |
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| 116 | DO jj = 1, jpj |
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| 117 | DO ji = 1, jpi |
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| 118 | rswitch = MAX( 0._wp , SIGN( 1._wp, a_i(ji,jj,jl) - epsi20 ) ) |
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| 119 | ht_i (ji,jj,jl) = v_i (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch |
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| 120 | ht_s (ji,jj,jl) = v_s (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch |
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| 121 | END DO |
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| 122 | END DO |
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| 123 | END DO |
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[4161] | 124 | !--------------------------------------------------------------------- |
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[5167] | 125 | ! Record max of the surrounding ice thicknesses for correction |
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[4161] | 126 | ! in case advection creates ice too thick. |
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| 127 | !--------------------------------------------------------------------- |
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[5134] | 128 | zhimax(:,:,:) = ht_i(:,:,:) + ht_s(:,:,:) |
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[4161] | 129 | DO jl = 1, jpl |
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| 130 | DO jj = 2, jpjm1 |
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| 131 | DO ji = 2, jpim1 |
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[5134] | 132 | zhimax(ji,jj,jl) = MAXVAL( ht_i(ji-1:ji+1,jj-1:jj+1,jl) + ht_s(ji-1:ji+1,jj-1:jj+1,jl) ) |
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[4161] | 133 | END DO |
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| 134 | END DO |
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| 135 | CALL lbc_lnk(zhimax(:,:,jl),'T',1.) |
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| 136 | END DO |
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| 137 | |
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[5123] | 138 | !=============================! |
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| 139 | !== Prather scheme ==! |
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| 140 | !=============================! |
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| 141 | |
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| 142 | ! If ice drift field is too fast, use an appropriate time step for advection. |
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| 143 | zcfl = MAXVAL( ABS( u_ice(:,:) ) * rdt_ice * r1_e1u(:,:) ) ! CFL test for stability |
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| 144 | zcfl = MAX( zcfl, MAXVAL( ABS( v_ice(:,:) ) * rdt_ice * r1_e2v(:,:) ) ) |
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| 145 | IF(lk_mpp ) CALL mpp_max( zcfl ) |
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| 146 | |
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| 147 | IF( zcfl > 0.5 ) THEN ; initad = 2 ; zusnit = 0.5_wp |
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| 148 | ELSE ; initad = 1 ; zusnit = 1.0_wp |
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| 149 | ENDIF |
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| 150 | |
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| 151 | IF( zcfl > 0.5_wp .AND. lwp ) ncfl = ncfl + 1 |
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[5202] | 152 | !! IF( lwp ) THEN |
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| 153 | !! IF( ncfl > 0 ) THEN |
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| 154 | !! WRITE(cltmp,'(i6.1)') ncfl |
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| 155 | !! CALL ctl_warn( 'lim_trp: ncfl= ', TRIM(cltmp), 'advective ice time-step using a split in sub-time-step ') |
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| 156 | !! ELSE |
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| 157 | !! ! WRITE(numout,*) 'lim_trp : CFL criterion for ice advection is always smaller than 1/2 ' |
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| 158 | !! ENDIF |
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| 159 | !! ENDIF |
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[5123] | 160 | |
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[825] | 161 | !------------------------- |
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[2715] | 162 | ! transported fields |
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[825] | 163 | !------------------------- |
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[5836] | 164 | z0opw(:,:,1) = ato_i(:,:) * e1e2t(:,:) ! Open water area |
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[2715] | 165 | DO jl = 1, jpl |
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[5836] | 166 | z0snw (:,:,jl) = v_s (:,:, jl) * e1e2t(:,:) ! Snow volume |
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| 167 | z0ice(:,:,jl) = v_i (:,:, jl) * e1e2t(:,:) ! Ice volume |
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| 168 | z0ai (:,:,jl) = a_i (:,:, jl) * e1e2t(:,:) ! Ice area |
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| 169 | z0smi (:,:,jl) = smv_i(:,:, jl) * e1e2t(:,:) ! Salt content |
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| 170 | z0oi (:,:,jl) = oa_i (:,:, jl) * e1e2t(:,:) ! Age content |
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| 171 | z0es (:,:,jl) = e_s (:,:,1,jl) * e1e2t(:,:) ! Snow heat content |
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[5123] | 172 | DO jk = 1, nlay_i |
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[5836] | 173 | z0ei (:,:,jk,jl) = e_i (:,:,jk,jl) * e1e2t(:,:) ! Ice heat content |
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[5123] | 174 | END DO |
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[825] | 175 | END DO |
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| 176 | |
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[921] | 177 | |
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[2715] | 178 | IF( MOD( ( kt - 1) / nn_fsbc , 2 ) == 0 ) THEN !== odd ice time step: adv_x then adv_y ==! |
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[5123] | 179 | DO jt = 1, initad |
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[5134] | 180 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0opw (:,:,1), sxopw(:,:), & !--- ice open water area |
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[5123] | 181 | & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) |
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[5134] | 182 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0opw (:,:,1), sxopw(:,:), & |
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[5123] | 183 | & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) |
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[825] | 184 | DO jl = 1, jpl |
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[5134] | 185 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0ice (:,:,jl), sxice(:,:,jl), & !--- ice volume --- |
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[2715] | 186 | & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) |
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[5134] | 187 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0ice (:,:,jl), sxice(:,:,jl), & |
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[2715] | 188 | & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) |
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[5134] | 189 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0snw (:,:,jl), sxsn (:,:,jl), & !--- snow volume --- |
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[2715] | 190 | & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) |
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[5134] | 191 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0snw (:,:,jl), sxsn (:,:,jl), & |
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[2715] | 192 | & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) |
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[5134] | 193 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0smi (:,:,jl), sxsal(:,:,jl), & !--- ice salinity --- |
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[2715] | 194 | & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) |
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[5134] | 195 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0smi (:,:,jl), sxsal(:,:,jl), & |
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[2715] | 196 | & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) |
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[5134] | 197 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0oi (:,:,jl), sxage(:,:,jl), & !--- ice age --- |
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[2715] | 198 | & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) |
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[5134] | 199 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0oi (:,:,jl), sxage(:,:,jl), & |
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[2715] | 200 | & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) |
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[5134] | 201 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0ai (:,:,jl), sxa (:,:,jl), & !--- ice concentrations --- |
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[2715] | 202 | & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) |
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[5134] | 203 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0ai (:,:,jl), sxa (:,:,jl), & |
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[2715] | 204 | & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) |
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[5134] | 205 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0es (:,:,jl), sxc0 (:,:,jl), & !--- snow heat contents --- |
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[2715] | 206 | & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) |
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[5134] | 207 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0es (:,:,jl), sxc0 (:,:,jl), & |
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[2715] | 208 | & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) |
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[5123] | 209 | DO jk = 1, nlay_i !--- ice heat contents --- |
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[5134] | 210 | CALL lim_adv_x( zusnit, u_ice, 1._wp, zsm, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & |
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[4870] | 211 | & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & |
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| 212 | & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) |
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[5134] | 213 | CALL lim_adv_y( zusnit, v_ice, 0._wp, zsm, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & |
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[4870] | 214 | & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & |
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| 215 | & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) |
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[825] | 216 | END DO |
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| 217 | END DO |
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| 218 | END DO |
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| 219 | ELSE |
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[5123] | 220 | DO jt = 1, initad |
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[5134] | 221 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0opw (:,:,1), sxopw(:,:), & !--- ice open water area |
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[5123] | 222 | & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) |
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[5134] | 223 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0opw (:,:,1), sxopw(:,:), & |
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[5123] | 224 | & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) |
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[825] | 225 | DO jl = 1, jpl |
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[5134] | 226 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0ice (:,:,jl), sxice(:,:,jl), & !--- ice volume --- |
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[2715] | 227 | & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) |
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[5134] | 228 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0ice (:,:,jl), sxice(:,:,jl), & |
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[2715] | 229 | & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) |
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[5134] | 230 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0snw (:,:,jl), sxsn (:,:,jl), & !--- snow volume --- |
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[2715] | 231 | & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) |
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[5134] | 232 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0snw (:,:,jl), sxsn (:,:,jl), & |
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[2715] | 233 | & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) |
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[5134] | 234 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0smi (:,:,jl), sxsal(:,:,jl), & !--- ice salinity --- |
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[2715] | 235 | & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) |
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[5134] | 236 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0smi (:,:,jl), sxsal(:,:,jl), & |
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[2715] | 237 | & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) |
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[5134] | 238 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0oi (:,:,jl), sxage(:,:,jl), & !--- ice age --- |
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[2715] | 239 | & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) |
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[5134] | 240 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0oi (:,:,jl), sxage(:,:,jl), & |
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[2715] | 241 | & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) |
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[5134] | 242 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0ai (:,:,jl), sxa (:,:,jl), & !--- ice concentrations --- |
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[2715] | 243 | & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) |
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[5134] | 244 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0ai (:,:,jl), sxa (:,:,jl), & |
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[2715] | 245 | & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) |
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[5134] | 246 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0es (:,:,jl), sxc0 (:,:,jl), & !--- snow heat contents --- |
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[2715] | 247 | & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) |
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[5134] | 248 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0es (:,:,jl), sxc0 (:,:,jl), & |
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[2715] | 249 | & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) |
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[4870] | 250 | DO jk = 1, nlay_i !--- ice heat contents --- |
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[5134] | 251 | CALL lim_adv_y( zusnit, v_ice, 1._wp, zsm, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & |
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[4870] | 252 | & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & |
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| 253 | & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) |
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[5134] | 254 | CALL lim_adv_x( zusnit, u_ice, 0._wp, zsm, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & |
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[4870] | 255 | & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & |
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| 256 | & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) |
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[825] | 257 | END DO |
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| 258 | END DO |
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| 259 | END DO |
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| 260 | ENDIF |
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| 261 | |
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| 262 | !------------------------------------------- |
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| 263 | ! Recover the properties from their contents |
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| 264 | !------------------------------------------- |
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[5836] | 265 | ato_i(:,:) = z0opw(:,:,1) * r1_e1e2t(:,:) |
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[825] | 266 | DO jl = 1, jpl |
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[5836] | 267 | v_i (:,:, jl) = z0ice(:,:,jl) * r1_e1e2t(:,:) |
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| 268 | v_s (:,:, jl) = z0snw(:,:,jl) * r1_e1e2t(:,:) |
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| 269 | smv_i(:,:, jl) = z0smi(:,:,jl) * r1_e1e2t(:,:) |
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| 270 | oa_i (:,:, jl) = z0oi (:,:,jl) * r1_e1e2t(:,:) |
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| 271 | a_i (:,:, jl) = z0ai (:,:,jl) * r1_e1e2t(:,:) |
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| 272 | e_s (:,:,1,jl) = z0es (:,:,jl) * r1_e1e2t(:,:) |
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[5123] | 273 | DO jk = 1, nlay_i |
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[5836] | 274 | e_i(:,:,jk,jl) = z0ei(:,:,jk,jl) * r1_e1e2t(:,:) |
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[5123] | 275 | END DO |
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[825] | 276 | END DO |
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| 277 | |
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[5123] | 278 | at_i(:,:) = a_i(:,:,1) ! total ice fraction |
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| 279 | DO jl = 2, jpl |
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| 280 | at_i(:,:) = at_i(:,:) + a_i(:,:,jl) |
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| 281 | END DO |
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| 282 | |
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[921] | 283 | !------------------------------------------------------------------------------! |
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[5123] | 284 | ! Diffusion of Ice fields |
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[921] | 285 | !------------------------------------------------------------------------------! |
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[825] | 286 | |
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[5123] | 287 | ! |
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[2715] | 288 | !-------------------------------- |
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| 289 | ! diffusion of open water area |
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| 290 | !-------------------------------- |
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| 291 | ! ! Masked eddy diffusivity coefficient at ocean U- and V-points |
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| 292 | DO jj = 1, jpjm1 ! NB: has not to be defined on jpj line and jpi row |
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| 293 | DO ji = 1 , fs_jpim1 ! vector opt. |
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[5123] | 294 | pahu(ji,jj) = ( 1._wp - MAX( 0._wp, SIGN( 1._wp, -at_i(ji ,jj) ) ) ) & |
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| 295 | & * ( 1._wp - MAX( 0._wp, SIGN( 1._wp, -at_i(ji+1,jj) ) ) ) * ahiu(ji,jj) |
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| 296 | pahv(ji,jj) = ( 1._wp - MAX( 0._wp, SIGN( 1._wp, -at_i(ji,jj ) ) ) ) & |
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| 297 | & * ( 1._wp - MAX( 0._wp, SIGN( 1._wp,- at_i(ji,jj+1) ) ) ) * ahiv(ji,jj) |
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[2715] | 298 | END DO |
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| 299 | END DO |
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| 300 | ! |
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[5134] | 301 | CALL lim_hdf( ato_i (:,:) ) |
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[2715] | 302 | |
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[921] | 303 | !------------------------------------ |
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[2715] | 304 | ! Diffusion of other ice variables |
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[921] | 305 | !------------------------------------ |
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[825] | 306 | DO jl = 1, jpl |
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[2715] | 307 | ! ! Masked eddy diffusivity coefficient at ocean U- and V-points |
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| 308 | DO jj = 1, jpjm1 ! NB: has not to be defined on jpj line and jpi row |
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| 309 | DO ji = 1 , fs_jpim1 ! vector opt. |
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[5123] | 310 | pahu(ji,jj) = ( 1._wp - MAX( 0._wp, SIGN( 1._wp, -a_i(ji ,jj,jl) ) ) ) & |
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| 311 | & * ( 1._wp - MAX( 0._wp, SIGN( 1._wp, -a_i(ji+1,jj,jl) ) ) ) * ahiu(ji,jj) |
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| 312 | pahv(ji,jj) = ( 1._wp - MAX( 0._wp, SIGN( 1._wp, -a_i(ji,jj ,jl) ) ) ) & |
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| 313 | & * ( 1._wp - MAX( 0._wp, SIGN( 1._wp,- a_i(ji,jj+1,jl) ) ) ) * ahiv(ji,jj) |
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[825] | 314 | END DO |
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[921] | 315 | END DO |
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[825] | 316 | |
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[5123] | 317 | CALL lim_hdf( v_i (:,:, jl) ) |
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| 318 | CALL lim_hdf( v_s (:,:, jl) ) |
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| 319 | CALL lim_hdf( smv_i(:,:, jl) ) |
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| 320 | CALL lim_hdf( oa_i (:,:, jl) ) |
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| 321 | CALL lim_hdf( a_i (:,:, jl) ) |
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| 322 | CALL lim_hdf( e_s (:,:,1,jl) ) |
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[825] | 323 | DO jk = 1, nlay_i |
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[5123] | 324 | CALL lim_hdf( e_i(:,:,jk,jl) ) |
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[2715] | 325 | END DO |
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| 326 | END DO |
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[825] | 327 | |
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[921] | 328 | !------------------------------------------------------------------------------! |
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[5123] | 329 | ! limit ice properties after transport |
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[921] | 330 | !------------------------------------------------------------------------------! |
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[5123] | 331 | !!gm & cr : MAX should not be active if adv scheme is positive ! |
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[825] | 332 | DO jl = 1, jpl |
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| 333 | DO jj = 1, jpj |
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| 334 | DO ji = 1, jpi |
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[5123] | 335 | v_s (ji,jj,jl) = MAX( 0._wp, v_s (ji,jj,jl) ) |
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| 336 | v_i (ji,jj,jl) = MAX( 0._wp, v_i (ji,jj,jl) ) |
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| 337 | smv_i(ji,jj,jl) = MAX( 0._wp, smv_i(ji,jj,jl) ) |
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| 338 | oa_i (ji,jj,jl) = MAX( 0._wp, oa_i (ji,jj,jl) ) |
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| 339 | a_i (ji,jj,jl) = MAX( 0._wp, a_i (ji,jj,jl) ) |
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| 340 | e_s (ji,jj,1,jl) = MAX( 0._wp, e_s (ji,jj,1,jl) ) |
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[825] | 341 | END DO |
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| 342 | END DO |
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| 343 | |
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[4688] | 344 | DO jk = 1, nlay_i |
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| 345 | DO jj = 1, jpj |
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| 346 | DO ji = 1, jpi |
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[5123] | 347 | e_i(ji,jj,jk,jl) = MAX( 0._wp, e_i(ji,jj,jk,jl) ) |
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| 348 | END DO |
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| 349 | END DO |
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| 350 | END DO |
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| 351 | END DO |
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| 352 | !!gm & cr |
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[4688] | 353 | |
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[5167] | 354 | ! --- diags --- |
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| 355 | DO jj = 1, jpj |
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| 356 | DO ji = 1, jpi |
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| 357 | diag_trp_ei(ji,jj) = ( SUM( e_i(ji,jj,1:nlay_i,:) ) - zeiold(ji,jj) ) * r1_rdtice |
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| 358 | diag_trp_es(ji,jj) = ( SUM( e_s(ji,jj,1:nlay_s,:) ) - zesold(ji,jj) ) * r1_rdtice |
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| 359 | |
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| 360 | diag_trp_vi (ji,jj) = SUM( v_i(ji,jj,:) - zviold(ji,jj,:) ) * r1_rdtice |
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| 361 | diag_trp_vs (ji,jj) = SUM( v_s(ji,jj,:) - zvsold(ji,jj,:) ) * r1_rdtice |
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| 362 | diag_trp_smv(ji,jj) = SUM( smv_i(ji,jj,:) - zsmvold(ji,jj,:) ) * r1_rdtice |
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| 363 | END DO |
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| 364 | END DO |
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| 365 | |
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[5123] | 366 | ! zap small areas |
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| 367 | CALL lim_var_zapsmall |
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| 368 | |
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| 369 | !--- Thickness correction in case too high -------------------------------------------------------- |
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[4161] | 370 | DO jl = 1, jpl |
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| 371 | DO jj = 1, jpj |
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| 372 | DO ji = 1, jpi |
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| 373 | |
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| 374 | IF ( v_i(ji,jj,jl) > 0._wp ) THEN |
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[5134] | 375 | |
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[5167] | 376 | rswitch = MAX( 0._wp , SIGN( 1._wp, a_i(ji,jj,jl) - epsi20 ) ) |
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| 377 | ht_i (ji,jj,jl) = v_i (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch |
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| 378 | ht_s (ji,jj,jl) = v_s (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch |
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| 379 | |
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[4688] | 380 | zvi = v_i (ji,jj,jl) |
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| 381 | zvs = v_s (ji,jj,jl) |
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| 382 | zsmv = smv_i(ji,jj,jl) |
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| 383 | zes = e_s (ji,jj,1,jl) |
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[4990] | 384 | zei = SUM( e_i(ji,jj,1:nlay_i,jl) ) |
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[5134] | 385 | |
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| 386 | zdv = v_i(ji,jj,jl) + v_s(ji,jj,jl) - zviold(ji,jj,jl) - zvsold(ji,jj,jl) |
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| 387 | |
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| 388 | IF ( ( zdv > 0.0 .AND. (ht_i(ji,jj,jl)+ht_s(ji,jj,jl)) > zhimax(ji,jj,jl) .AND. zatold(ji,jj) < 0.80 ) .OR. & |
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[5167] | 389 | & ( zdv <= 0.0 .AND. (ht_i(ji,jj,jl)+ht_s(ji,jj,jl)) > zhimax(ji,jj,jl) ) ) THEN |
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[5134] | 390 | |
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| 391 | rswitch = MAX( 0._wp, SIGN( 1._wp, zhimax(ji,jj,jl) - epsi20 ) ) |
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| 392 | a_i(ji,jj,jl) = rswitch * ( v_i(ji,jj,jl) + v_s(ji,jj,jl) ) / MAX( zhimax(ji,jj,jl), epsi20 ) |
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| 393 | |
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| 394 | ! small correction due to *rswitch for a_i |
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| 395 | v_i (ji,jj,jl) = rswitch * v_i (ji,jj,jl) |
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| 396 | v_s (ji,jj,jl) = rswitch * v_s (ji,jj,jl) |
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| 397 | smv_i(ji,jj,jl) = rswitch * smv_i(ji,jj,jl) |
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| 398 | e_s(ji,jj,1,jl) = rswitch * e_s(ji,jj,1,jl) |
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| 399 | e_i(ji,jj,1:nlay_i,jl) = rswitch * e_i(ji,jj,1:nlay_i,jl) |
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| 400 | |
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| 401 | ! Update mass fluxes |
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| 402 | wfx_res(ji,jj) = wfx_res(ji,jj) - ( v_i(ji,jj,jl) - zvi ) * rhoic * r1_rdtice |
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| 403 | wfx_snw(ji,jj) = wfx_snw(ji,jj) - ( v_s(ji,jj,jl) - zvs ) * rhosn * r1_rdtice |
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| 404 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( smv_i(ji,jj,jl) - zsmv ) * rhoic * r1_rdtice |
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| 405 | hfx_res(ji,jj) = hfx_res(ji,jj) + ( e_s(ji,jj,1,jl) - zes ) * r1_rdtice ! W.m-2 <0 |
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| 406 | hfx_res(ji,jj) = hfx_res(ji,jj) + ( SUM( e_i(ji,jj,1:nlay_i,jl) ) - zei ) * r1_rdtice ! W.m-2 <0 |
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| 407 | |
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[4161] | 408 | ENDIF |
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| 409 | |
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| 410 | ENDIF |
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[5123] | 411 | |
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[825] | 412 | END DO |
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| 413 | END DO |
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| 414 | END DO |
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[4688] | 415 | ! ------------------------------------------------- |
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[5123] | 416 | |
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| 417 | !-------------------------------------- |
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| 418 | ! Impose a_i < amax in mono-category |
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| 419 | !-------------------------------------- |
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| 420 | ! |
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| 421 | IF ( ( nn_monocat == 2 ) .AND. ( jpl == 1 ) ) THEN ! simple conservative piling, comparable with LIM2 |
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| 422 | DO jj = 1, jpj |
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| 423 | DO ji = 1, jpi |
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| 424 | a_i(ji,jj,1) = MIN( a_i(ji,jj,1), rn_amax ) |
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| 425 | END DO |
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| 426 | END DO |
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| 427 | ENDIF |
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[825] | 428 | |
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[4990] | 429 | ! --- agglomerate variables ----------------- |
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[4688] | 430 | vt_i (:,:) = 0._wp |
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| 431 | vt_s (:,:) = 0._wp |
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| 432 | at_i (:,:) = 0._wp |
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[825] | 433 | DO jl = 1, jpl |
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| 434 | DO jj = 1, jpj |
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| 435 | DO ji = 1, jpi |
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[5134] | 436 | vt_i(ji,jj) = vt_i(ji,jj) + v_i(ji,jj,jl) |
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| 437 | vt_s(ji,jj) = vt_s(ji,jj) + v_s(ji,jj,jl) |
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| 438 | at_i(ji,jj) = at_i(ji,jj) + a_i(ji,jj,jl) |
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[4688] | 439 | END DO |
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| 440 | END DO |
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| 441 | END DO |
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[825] | 442 | |
---|
[5134] | 443 | ! --- open water = 1 if at_i=0 -------------------------------- |
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[4161] | 444 | DO jj = 1, jpj |
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| 445 | DO ji = 1, jpi |
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[4990] | 446 | rswitch = MAX( 0._wp , SIGN( 1._wp, - at_i(ji,jj) ) ) |
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[5123] | 447 | ato_i(ji,jj) = rswitch + (1._wp - rswitch ) * ato_i(ji,jj) |
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[4161] | 448 | END DO |
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[4688] | 449 | END DO |
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[4161] | 450 | |
---|
[4688] | 451 | ! conservation test |
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| 452 | IF( ln_limdiahsb ) CALL lim_cons_hsm(1, 'limtrp', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[4161] | 453 | |
---|
[825] | 454 | ENDIF |
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| 455 | |
---|
[5123] | 456 | ! ------------------------------------------------- |
---|
| 457 | ! control prints |
---|
| 458 | ! ------------------------------------------------- |
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[5128] | 459 | IF( ln_icectl ) CALL lim_prt( kt, iiceprt, jiceprt,-1, ' - ice dyn & trp - ' ) |
---|
[2715] | 460 | ! |
---|
[5180] | 461 | CALL wrk_dealloc( jpi,jpj, zsm, zatold, zeiold, zesold ) |
---|
| 462 | CALL wrk_dealloc( jpi,jpj,jpl, z0ice, z0snw, z0ai, z0es , z0smi , z0oi ) |
---|
| 463 | CALL wrk_dealloc( jpi,jpj,1, z0opw ) |
---|
| 464 | CALL wrk_dealloc( jpi,jpj,nlay_i,jpl, z0ei ) |
---|
| 465 | CALL wrk_dealloc( jpi,jpj,jpl, zviold, zvsold, zhimax, zsmvold ) |
---|
[5123] | 466 | ! |
---|
[4161] | 467 | IF( nn_timing == 1 ) CALL timing_stop('limtrp') |
---|
[5123] | 468 | |
---|
[825] | 469 | END SUBROUTINE lim_trp |
---|
| 470 | |
---|
| 471 | #else |
---|
| 472 | !!---------------------------------------------------------------------- |
---|
| 473 | !! Default option Empty Module No sea-ice model |
---|
| 474 | !!---------------------------------------------------------------------- |
---|
| 475 | CONTAINS |
---|
| 476 | SUBROUTINE lim_trp ! Empty routine |
---|
| 477 | END SUBROUTINE lim_trp |
---|
| 478 | #endif |
---|
| 479 | !!====================================================================== |
---|
| 480 | END MODULE limtrp |
---|