[4045] | 1 | MODULE limupdate2 |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE limupdate2 *** |
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| 4 | !! LIM-3 : Update of sea-ice global variables at the end of the time step |
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| 5 | !!====================================================================== |
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| 6 | !! History : 3.0 ! 2006-04 (M. Vancoppenolle) Original code |
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[5123] | 7 | !! 3.5 ! 2014-06 (C. Rousset) Complete rewriting/cleaning |
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[4045] | 8 | !!---------------------------------------------------------------------- |
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| 9 | #if defined key_lim3 |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! 'key_lim3' LIM3 sea-ice model |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! lim_update2 : computes update of sea-ice global variables from trend terms |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE sbc_oce ! Surface boundary condition: ocean fields |
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| 16 | USE sbc_ice ! Surface boundary condition: ice fields |
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| 17 | USE dom_ice |
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[5123] | 18 | USE dom_oce |
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[4045] | 19 | USE phycst ! physical constants |
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| 20 | USE ice |
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| 21 | USE thd_ice ! LIM thermodynamic sea-ice variables |
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| 22 | USE limitd_th |
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| 23 | USE limvar |
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[5123] | 24 | USE prtctl ! Print control |
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| 25 | USE lbclnk ! lateral boundary condition - MPP exchanges |
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| 26 | USE wrk_nemo ! work arrays |
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[4072] | 27 | USE timing ! Timing |
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[5123] | 28 | USE limcons ! conservation tests |
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| 29 | USE limctl |
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| 30 | USE lib_mpp ! MPP library |
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| 31 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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| 32 | USE in_out_manager |
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[4045] | 33 | |
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| 34 | IMPLICIT NONE |
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| 35 | PRIVATE |
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| 36 | |
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| 37 | PUBLIC lim_update2 ! routine called by ice_step |
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| 38 | |
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| 39 | !! * Substitutions |
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| 40 | # include "vectopt_loop_substitute.h90" |
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| 41 | !!---------------------------------------------------------------------- |
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| 42 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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[5215] | 43 | !! $Id$ |
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[4045] | 44 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 45 | !!---------------------------------------------------------------------- |
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| 46 | CONTAINS |
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| 47 | |
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[5123] | 48 | SUBROUTINE lim_update2( kt ) |
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[4045] | 49 | !!------------------------------------------------------------------- |
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| 50 | !! *** ROUTINE lim_update2 *** |
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| 51 | !! |
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| 52 | !! ** Purpose : Computes update of sea-ice global variables at |
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| 53 | !! the end of the time step. |
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| 54 | !! |
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| 55 | !!--------------------------------------------------------------------- |
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[5123] | 56 | INTEGER, INTENT(in) :: kt ! number of iteration |
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| 57 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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[5134] | 58 | REAL(wp) :: zsal |
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[5123] | 59 | REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b |
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[4045] | 60 | !!------------------------------------------------------------------- |
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[4072] | 61 | IF( nn_timing == 1 ) CALL timing_start('limupdate2') |
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[4045] | 62 | |
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[5123] | 63 | IF( kt == nit000 .AND. lwp ) THEN |
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| 64 | WRITE(numout,*) ' lim_update2 ' |
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| 65 | WRITE(numout,*) ' ~~~~~~~~~~~ ' |
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| 66 | ENDIF |
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| 67 | |
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[4688] | 68 | ! conservation test |
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| 69 | IF( ln_limdiahsb ) CALL lim_cons_hsm(0, 'limupdate2', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[4045] | 70 | |
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[4688] | 71 | !---------------------------------------------------------------------- |
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[5123] | 72 | ! Constrain the thickness of the smallest category above himin |
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[4688] | 73 | !---------------------------------------------------------------------- |
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[4869] | 74 | DO jj = 1, jpj |
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| 75 | DO ji = 1, jpi |
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[5167] | 76 | rswitch = MAX( 0._wp , SIGN( 1._wp, a_i(ji,jj,1) - epsi20 ) ) !0 if no ice and 1 if yes |
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| 77 | ht_i(ji,jj,1) = v_i (ji,jj,1) / MAX( a_i(ji,jj,1) , epsi20 ) * rswitch |
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[5123] | 78 | IF( v_i(ji,jj,1) > 0._wp .AND. ht_i(ji,jj,1) < rn_himin ) THEN |
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[5202] | 79 | a_i (ji,jj,1) = a_i (ji,jj,1) * ht_i(ji,jj,1) / rn_himin |
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| 80 | oa_i(ji,jj,1) = oa_i(ji,jj,1) * ht_i(ji,jj,1) / rn_himin |
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[4869] | 81 | ENDIF |
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| 82 | END DO |
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| 83 | END DO |
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[4688] | 84 | |
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| 85 | !----------------------------------------------------- |
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| 86 | ! ice concentration should not exceed amax |
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| 87 | !----------------------------------------------------- |
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| 88 | at_i(:,:) = 0._wp |
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[4045] | 89 | DO jl = 1, jpl |
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| 90 | at_i(:,:) = a_i(:,:,jl) + at_i(:,:) |
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| 91 | END DO |
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[4688] | 92 | |
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| 93 | DO jl = 1, jpl |
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| 94 | DO jj = 1, jpj |
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| 95 | DO ji = 1, jpi |
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[5123] | 96 | IF( at_i(ji,jj) > rn_amax .AND. a_i(ji,jj,jl) > 0._wp ) THEN |
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[5202] | 97 | a_i (ji,jj,jl) = a_i (ji,jj,jl) * ( 1._wp - ( 1._wp - rn_amax / at_i(ji,jj) ) ) |
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| 98 | oa_i(ji,jj,jl) = oa_i(ji,jj,jl) * ( 1._wp - ( 1._wp - rn_amax / at_i(ji,jj) ) ) |
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[4688] | 99 | ENDIF |
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[4045] | 100 | END DO |
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| 101 | END DO |
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| 102 | END DO |
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[4688] | 103 | |
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[4045] | 104 | !--------------------- |
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[5123] | 105 | ! Ice salinity |
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[4045] | 106 | !--------------------- |
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[5123] | 107 | IF ( nn_icesal == 2 ) THEN |
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[4045] | 108 | DO jl = 1, jpl |
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[4688] | 109 | DO jj = 1, jpj |
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| 110 | DO ji = 1, jpi |
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| 111 | zsal = smv_i(ji,jj,jl) |
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| 112 | ! salinity stays in bounds |
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[5123] | 113 | rswitch = 1._wp - MAX( 0._wp, SIGN( 1._wp, - v_i(ji,jj,jl) ) ) |
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[5134] | 114 | smv_i(ji,jj,jl) = rswitch * MAX( MIN( rn_simax * v_i(ji,jj,jl), smv_i(ji,jj,jl) ), rn_simin * v_i(ji,jj,jl) ) |
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[4688] | 115 | ! associated salt flux |
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| 116 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( smv_i(ji,jj,jl) - zsal ) * rhoic * r1_rdtice |
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[5134] | 117 | END DO |
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| 118 | END DO |
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| 119 | END DO |
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[4045] | 120 | ENDIF |
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| 121 | |
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[5167] | 122 | !---------------------------------------------------- |
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| 123 | ! Rebin categories with thickness out of bounds |
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| 124 | !---------------------------------------------------- |
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| 125 | IF ( jpl > 1 ) CALL lim_itd_th_reb( 1, jpl ) |
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| 126 | |
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| 127 | !----------------- |
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| 128 | ! zap small values |
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| 129 | !----------------- |
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| 130 | CALL lim_var_zapsmall |
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| 131 | |
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[4045] | 132 | !------------------------------------------------------------------------------ |
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[5123] | 133 | ! Corrections to avoid wrong values | |
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[4045] | 134 | !------------------------------------------------------------------------------ |
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| 135 | ! Ice drift |
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| 136 | !------------ |
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| 137 | DO jj = 2, jpjm1 |
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[4072] | 138 | DO ji = 2, jpim1 |
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[4688] | 139 | IF ( at_i(ji,jj) == 0._wp ) THEN ! what to do if there is no ice |
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| 140 | IF ( at_i(ji+1,jj) == 0._wp ) u_ice(ji,jj) = 0._wp ! right side |
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| 141 | IF ( at_i(ji-1,jj) == 0._wp ) u_ice(ji-1,jj) = 0._wp ! left side |
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| 142 | IF ( at_i(ji,jj+1) == 0._wp ) v_ice(ji,jj) = 0._wp ! upper side |
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| 143 | IF ( at_i(ji,jj-1) == 0._wp ) v_ice(ji,jj-1) = 0._wp ! bottom side |
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[4045] | 144 | ENDIF |
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| 145 | END DO |
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| 146 | END DO |
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[4072] | 147 | !lateral boundary conditions |
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| 148 | CALL lbc_lnk( u_ice(:,:), 'U', -1. ) |
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| 149 | CALL lbc_lnk( v_ice(:,:), 'V', -1. ) |
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[4045] | 150 | !mask velocities |
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[5123] | 151 | u_ice(:,:) = u_ice(:,:) * umask(:,:,1) |
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| 152 | v_ice(:,:) = v_ice(:,:) * vmask(:,:,1) |
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[4045] | 153 | |
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[4688] | 154 | ! ------------------------------------------------- |
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| 155 | ! Diagnostics |
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| 156 | ! ------------------------------------------------- |
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[5123] | 157 | DO jl = 1, jpl |
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[5202] | 158 | oa_i(:,:,jl) = oa_i(:,:,jl) + a_i(:,:,jl) * rdt_ice / rday ! ice natural aging |
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[5123] | 159 | afx_thd(:,:) = afx_thd(:,:) + ( a_i(:,:,jl) - a_i_b(:,:,jl) ) * r1_rdtice |
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| 160 | END DO |
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| 161 | afx_tot = afx_thd + afx_dyn |
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[4688] | 162 | |
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| 163 | DO jj = 1, jpj |
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| 164 | DO ji = 1, jpi |
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[5167] | 165 | ! heat content variation (W.m-2) |
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| 166 | diag_heat(ji,jj) = diag_heat(ji,jj) - & |
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| 167 | & ( SUM( e_i(ji,jj,1:nlay_i,:) - e_i_b(ji,jj,1:nlay_i,:) ) + & |
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| 168 | & SUM( e_s(ji,jj,1:nlay_s,:) - e_s_b(ji,jj,1:nlay_s,:) ) & |
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| 169 | & ) * r1_rdtice |
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| 170 | ! salt, volume |
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| 171 | diag_smvi(ji,jj) = diag_smvi(ji,jj) + SUM( smv_i(ji,jj,:) - smv_i_b(ji,jj,:) ) * rhoic * r1_rdtice |
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| 172 | diag_vice(ji,jj) = diag_vice(ji,jj) + SUM( v_i (ji,jj,:) - v_i_b (ji,jj,:) ) * rhoic * r1_rdtice |
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| 173 | diag_vsnw(ji,jj) = diag_vsnw(ji,jj) + SUM( v_s (ji,jj,:) - v_s_b (ji,jj,:) ) * rhosn * r1_rdtice |
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[4045] | 174 | END DO |
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| 175 | END DO |
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| 176 | |
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[5167] | 177 | ! conservation test |
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| 178 | IF( ln_limdiahsb ) CALL lim_cons_hsm(1, 'limupdate2', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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| 179 | |
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[5410] | 180 | ! necessary calls (at least for coupling) |
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[5167] | 181 | CALL lim_var_glo2eqv |
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| 182 | CALL lim_var_agg(2) |
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| 183 | |
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[5123] | 184 | ! ------------------------------------------------- |
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| 185 | ! control prints |
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| 186 | ! ------------------------------------------------- |
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[5128] | 187 | IF( ln_icectl ) CALL lim_prt( kt, iiceprt, jiceprt, 2, ' - Final state - ' ) ! control print |
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[4045] | 188 | |
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| 189 | IF(ln_ctl) THEN ! Control print |
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| 190 | CALL prt_ctl_info(' ') |
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| 191 | CALL prt_ctl_info(' - Cell values : ') |
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| 192 | CALL prt_ctl_info(' ~~~~~~~~~~~~~ ') |
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[5123] | 193 | CALL prt_ctl(tab2d_1=e12t , clinfo1=' lim_update2 : cell area :') |
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[4045] | 194 | CALL prt_ctl(tab2d_1=at_i , clinfo1=' lim_update2 : at_i :') |
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| 195 | CALL prt_ctl(tab2d_1=vt_i , clinfo1=' lim_update2 : vt_i :') |
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| 196 | CALL prt_ctl(tab2d_1=vt_s , clinfo1=' lim_update2 : vt_s :') |
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| 197 | CALL prt_ctl(tab2d_1=strength , clinfo1=' lim_update2 : strength :') |
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| 198 | CALL prt_ctl(tab2d_1=u_ice , clinfo1=' lim_update2 : u_ice :', tab2d_2=v_ice , clinfo2=' v_ice :') |
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[4872] | 199 | CALL prt_ctl(tab2d_1=u_ice_b , clinfo1=' lim_update2 : u_ice_b :', tab2d_2=v_ice_b , clinfo2=' v_ice_b :') |
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[4045] | 200 | |
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| 201 | DO jl = 1, jpl |
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| 202 | CALL prt_ctl_info(' ') |
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| 203 | CALL prt_ctl_info(' - Category : ', ivar1=jl) |
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| 204 | CALL prt_ctl_info(' ~~~~~~~~~~') |
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| 205 | CALL prt_ctl(tab2d_1=ht_i (:,:,jl) , clinfo1= ' lim_update2 : ht_i : ') |
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| 206 | CALL prt_ctl(tab2d_1=ht_s (:,:,jl) , clinfo1= ' lim_update2 : ht_s : ') |
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| 207 | CALL prt_ctl(tab2d_1=t_su (:,:,jl) , clinfo1= ' lim_update2 : t_su : ') |
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| 208 | CALL prt_ctl(tab2d_1=t_s (:,:,1,jl) , clinfo1= ' lim_update2 : t_snow : ') |
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| 209 | CALL prt_ctl(tab2d_1=sm_i (:,:,jl) , clinfo1= ' lim_update2 : sm_i : ') |
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| 210 | CALL prt_ctl(tab2d_1=o_i (:,:,jl) , clinfo1= ' lim_update2 : o_i : ') |
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| 211 | CALL prt_ctl(tab2d_1=a_i (:,:,jl) , clinfo1= ' lim_update2 : a_i : ') |
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[4872] | 212 | CALL prt_ctl(tab2d_1=a_i_b (:,:,jl) , clinfo1= ' lim_update2 : a_i_b : ') |
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[4045] | 213 | CALL prt_ctl(tab2d_1=v_i (:,:,jl) , clinfo1= ' lim_update2 : v_i : ') |
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[4872] | 214 | CALL prt_ctl(tab2d_1=v_i_b (:,:,jl) , clinfo1= ' lim_update2 : v_i_b : ') |
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[4045] | 215 | CALL prt_ctl(tab2d_1=v_s (:,:,jl) , clinfo1= ' lim_update2 : v_s : ') |
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[4872] | 216 | CALL prt_ctl(tab2d_1=v_s_b (:,:,jl) , clinfo1= ' lim_update2 : v_s_b : ') |
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[5123] | 217 | CALL prt_ctl(tab2d_1=e_i (:,:,1,jl) , clinfo1= ' lim_update2 : e_i1 : ') |
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| 218 | CALL prt_ctl(tab2d_1=e_i_b (:,:,1,jl) , clinfo1= ' lim_update2 : e_i1_b : ') |
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| 219 | CALL prt_ctl(tab2d_1=e_i (:,:,2,jl) , clinfo1= ' lim_update2 : e_i2 : ') |
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| 220 | CALL prt_ctl(tab2d_1=e_i_b (:,:,2,jl) , clinfo1= ' lim_update2 : e_i2_b : ') |
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[4045] | 221 | CALL prt_ctl(tab2d_1=e_s (:,:,1,jl) , clinfo1= ' lim_update2 : e_snow : ') |
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[4872] | 222 | CALL prt_ctl(tab2d_1=e_s_b (:,:,1,jl) , clinfo1= ' lim_update2 : e_snow_b : ') |
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[4045] | 223 | CALL prt_ctl(tab2d_1=smv_i (:,:,jl) , clinfo1= ' lim_update2 : smv_i : ') |
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[4872] | 224 | CALL prt_ctl(tab2d_1=smv_i_b (:,:,jl) , clinfo1= ' lim_update2 : smv_i_b : ') |
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[4045] | 225 | CALL prt_ctl(tab2d_1=oa_i (:,:,jl) , clinfo1= ' lim_update2 : oa_i : ') |
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[4872] | 226 | CALL prt_ctl(tab2d_1=oa_i_b (:,:,jl) , clinfo1= ' lim_update2 : oa_i_b : ') |
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[4045] | 227 | |
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| 228 | DO jk = 1, nlay_i |
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| 229 | CALL prt_ctl_info(' - Layer : ', ivar1=jk) |
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| 230 | CALL prt_ctl(tab2d_1=t_i(:,:,jk,jl) , clinfo1= ' lim_update2 : t_i : ') |
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| 231 | END DO |
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| 232 | END DO |
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| 233 | |
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| 234 | CALL prt_ctl_info(' ') |
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| 235 | CALL prt_ctl_info(' - Heat / FW fluxes : ') |
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| 236 | CALL prt_ctl_info(' ~~~~~~~~~~~~~~~~~~ ') |
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| 237 | CALL prt_ctl(tab2d_1=sst_m , clinfo1= ' lim_update2 : sst : ', tab2d_2=sss_m , clinfo2= ' sss : ') |
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| 238 | |
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| 239 | CALL prt_ctl_info(' ') |
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| 240 | CALL prt_ctl_info(' - Stresses : ') |
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| 241 | CALL prt_ctl_info(' ~~~~~~~~~~ ') |
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| 242 | CALL prt_ctl(tab2d_1=utau , clinfo1= ' lim_update2 : utau : ', tab2d_2=vtau , clinfo2= ' vtau : ') |
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| 243 | CALL prt_ctl(tab2d_1=utau_ice , clinfo1= ' lim_update2 : utau_ice : ', tab2d_2=vtau_ice , clinfo2= ' vtau_ice : ') |
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| 244 | CALL prt_ctl(tab2d_1=u_oce , clinfo1= ' lim_update2 : u_oce : ', tab2d_2=v_oce , clinfo2= ' v_oce : ') |
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| 245 | ENDIF |
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| 246 | |
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[4688] | 247 | IF( nn_timing == 1 ) CALL timing_stop('limupdate2') |
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[4045] | 248 | |
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| 249 | END SUBROUTINE lim_update2 |
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| 250 | #else |
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| 251 | !!---------------------------------------------------------------------- |
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| 252 | !! Default option Empty Module No sea-ice model |
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| 253 | !!---------------------------------------------------------------------- |
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| 254 | CONTAINS |
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| 255 | SUBROUTINE lim_update2 ! Empty routine |
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| 256 | END SUBROUTINE lim_update2 |
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| 257 | |
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| 258 | #endif |
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| 259 | |
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| 260 | END MODULE limupdate2 |
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