[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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[4688] | 7 | !! 3.6 ! 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 limrhg ! ice rheology |
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| 16 | |
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| 17 | USE dom_oce |
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| 18 | USE oce ! dynamics and tracers variables |
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| 19 | USE in_out_manager |
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| 20 | USE sbc_oce ! Surface boundary condition: ocean fields |
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| 21 | USE sbc_ice ! Surface boundary condition: ice fields |
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| 22 | USE dom_ice |
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| 23 | USE phycst ! physical constants |
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| 24 | USE ice |
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| 25 | USE limdyn |
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| 26 | USE limtrp |
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| 27 | USE limthd |
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| 28 | USE limsbc |
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| 29 | USE limdiahsb |
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| 30 | USE limwri |
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| 31 | USE limrst |
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| 32 | USE thd_ice ! LIM thermodynamic sea-ice variables |
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| 33 | USE par_ice |
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| 34 | USE limitd_th |
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| 35 | USE limitd_me |
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| 36 | USE limvar |
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| 37 | USE prtctl ! Print control |
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| 38 | USE lbclnk ! lateral boundary condition - MPP exchanges |
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| 39 | USE wrk_nemo ! work arrays |
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| 40 | USE lib_fortran ! glob_sum |
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[4072] | 41 | USE timing ! Timing |
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[4688] | 42 | USE limcons ! conservation tests |
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[4045] | 43 | |
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| 44 | IMPLICIT NONE |
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| 45 | PRIVATE |
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| 46 | |
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| 47 | PUBLIC lim_update2 ! routine called by ice_step |
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| 48 | |
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[4688] | 49 | REAL(wp) :: epsi10 = 1.e-10_wp ! - - |
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| 50 | REAL(wp) :: epsi20 = 1.e-20_wp |
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| 51 | |
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[4045] | 52 | !! * Substitutions |
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| 53 | # include "vectopt_loop_substitute.h90" |
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| 54 | !!---------------------------------------------------------------------- |
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| 55 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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| 56 | !! $Id: limupdate.F90 3294 2012-01-28 16:44:18Z rblod $ |
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| 57 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | CONTAINS |
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| 60 | |
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| 61 | SUBROUTINE lim_update2 |
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| 62 | !!------------------------------------------------------------------- |
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| 63 | !! *** ROUTINE lim_update2 *** |
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| 64 | !! |
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| 65 | !! ** Purpose : Computes update of sea-ice global variables at |
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| 66 | !! the end of the time step. |
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| 67 | !! |
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| 68 | !!--------------------------------------------------------------------- |
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[4688] | 69 | INTEGER :: ji, jj, jk, jl, jm ! dummy loop indices |
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| 70 | INTEGER :: jbnd1, jbnd2 |
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| 71 | INTEGER :: i_ice_switch |
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| 72 | REAL(wp) :: zh, zsal |
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| 73 | ! |
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| 74 | REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b |
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[4045] | 75 | !!------------------------------------------------------------------- |
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[4072] | 76 | IF( nn_timing == 1 ) CALL timing_start('limupdate2') |
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[4045] | 77 | |
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[4688] | 78 | ! conservation test |
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| 79 | 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] | 80 | |
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[4688] | 81 | !----------------- |
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| 82 | ! zap small values |
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| 83 | !----------------- |
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| 84 | CALL lim_itd_me_zapsmall |
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[4045] | 85 | |
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| 86 | CALL lim_var_glo2eqv |
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| 87 | |
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| 88 | !---------------------------------------------------- |
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[4688] | 89 | ! Rebin categories with thickness out of bounds |
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[4045] | 90 | !---------------------------------------------------- |
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| 91 | DO jm = 1, jpm |
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| 92 | jbnd1 = ice_cat_bounds(jm,1) |
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| 93 | jbnd2 = ice_cat_bounds(jm,2) |
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| 94 | IF (ice_ncat_types(jm) .GT. 1 ) CALL lim_itd_th_reb(jbnd1, jbnd2, jm) |
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| 95 | END DO |
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| 96 | |
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[4688] | 97 | !---------------------------------------------------------------------- |
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| 98 | ! Constrain the thickness of the smallest category above hiclim |
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| 99 | !---------------------------------------------------------------------- |
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[4045] | 100 | DO jm = 1, jpm |
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| 101 | DO jj = 1, jpj |
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| 102 | DO ji = 1, jpi |
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| 103 | jl = ice_cat_bounds(jm,1) |
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[4688] | 104 | IF( v_i(ji,jj,jl) > 0._wp .AND. ht_i(ji,jj,jl) < hiclim ) THEN |
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| 105 | zh = hiclim / ht_i(ji,jj,jl) |
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| 106 | ht_s(ji,jj,jl) = ht_s(ji,jj,jl) * zh |
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| 107 | ht_i(ji,jj,jl) = ht_i(ji,jj,jl) * zh |
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| 108 | a_i (ji,jj,jl) = a_i(ji,jj,jl) / zh |
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| 109 | ENDIF |
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[4045] | 110 | END DO !ji |
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| 111 | END DO !jj |
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| 112 | END DO !jm |
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[4688] | 113 | |
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| 114 | !----------------------------------------------------- |
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| 115 | ! ice concentration should not exceed amax |
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| 116 | !----------------------------------------------------- |
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| 117 | at_i(:,:) = 0._wp |
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[4045] | 118 | DO jl = 1, jpl |
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| 119 | at_i(:,:) = a_i(:,:,jl) + at_i(:,:) |
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| 120 | END DO |
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[4688] | 121 | |
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| 122 | DO jl = 1, jpl |
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| 123 | DO jj = 1, jpj |
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| 124 | DO ji = 1, jpi |
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| 125 | IF( at_i(ji,jj) > amax .AND. a_i(ji,jj,jl) > 0._wp ) THEN |
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| 126 | a_i(ji,jj,jl) = a_i(ji,jj,jl) * ( 1._wp - ( 1._wp - amax / at_i(ji,jj) ) ) |
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| 127 | ht_i(ji,jj,jl) = v_i(ji,jj,jl) / a_i(ji,jj,jl) |
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| 128 | ENDIF |
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[4045] | 129 | END DO |
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| 130 | END DO |
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| 131 | END DO |
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[4688] | 132 | |
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[4045] | 133 | at_i(:,:) = 0.0 |
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| 134 | DO jl = 1, jpl |
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| 135 | at_i(:,:) = a_i(:,:,jl) + at_i(:,:) |
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| 136 | END DO |
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| 137 | |
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[4688] | 138 | ! -------------------------------------- |
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[4045] | 139 | ! Final thickness distribution rebinning |
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| 140 | ! -------------------------------------- |
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| 141 | DO jm = 1, jpm |
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| 142 | jbnd1 = ice_cat_bounds(jm,1) |
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| 143 | jbnd2 = ice_cat_bounds(jm,2) |
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| 144 | IF (ice_ncat_types(jm) .GT. 1 ) CALL lim_itd_th_reb(jbnd1, jbnd2, jm) |
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| 145 | IF (ice_ncat_types(jm) .EQ. 1 ) THEN |
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| 146 | ENDIF |
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| 147 | END DO |
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| 148 | |
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[4688] | 149 | !----------------- |
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| 150 | ! zap small values |
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| 151 | !----------------- |
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| 152 | CALL lim_itd_me_zapsmall |
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| 153 | |
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[4045] | 154 | !--------------------- |
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| 155 | ! 2.11) Ice salinity |
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| 156 | !--------------------- |
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[4688] | 157 | IF ( num_sal == 2 ) THEN |
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[4045] | 158 | DO jl = 1, jpl |
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[4688] | 159 | DO jj = 1, jpj |
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| 160 | DO ji = 1, jpi |
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| 161 | zsal = smv_i(ji,jj,jl) |
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| 162 | smv_i(ji,jj,jl) = sm_i(ji,jj,jl) * v_i(ji,jj,jl) |
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| 163 | ! salinity stays in bounds |
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| 164 | i_ice_switch = 1._wp - MAX( 0._wp, SIGN( 1._wp, - v_i(ji,jj,jl) ) ) |
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| 165 | smv_i(ji,jj,jl) = i_ice_switch * MAX( MIN( s_i_max * v_i(ji,jj,jl), smv_i(ji,jj,jl) ), s_i_min * v_i(ji,jj,jl) ) !+ s_i_min * ( 1._wp - i_ice_switch ) * v_i(ji,jj,jl) |
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| 166 | ! associated salt flux |
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| 167 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( smv_i(ji,jj,jl) - zsal ) * rhoic * r1_rdtice |
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| 168 | END DO ! ji |
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| 169 | END DO ! jj |
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[4045] | 170 | END DO !jl |
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| 171 | ENDIF |
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| 172 | |
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| 173 | !------------------------------------------------------------------------------ |
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| 174 | ! 2) Corrections to avoid wrong values | |
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| 175 | !------------------------------------------------------------------------------ |
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| 176 | ! Ice drift |
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| 177 | !------------ |
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| 178 | DO jj = 2, jpjm1 |
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[4072] | 179 | DO ji = 2, jpim1 |
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[4688] | 180 | IF ( at_i(ji,jj) == 0._wp ) THEN ! what to do if there is no ice |
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| 181 | IF ( at_i(ji+1,jj) == 0._wp ) u_ice(ji,jj) = 0._wp ! right side |
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| 182 | IF ( at_i(ji-1,jj) == 0._wp ) u_ice(ji-1,jj) = 0._wp ! left side |
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| 183 | IF ( at_i(ji,jj+1) == 0._wp ) v_ice(ji,jj) = 0._wp ! upper side |
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| 184 | IF ( at_i(ji,jj-1) == 0._wp ) v_ice(ji,jj-1) = 0._wp ! bottom side |
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[4045] | 185 | ENDIF |
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| 186 | END DO |
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| 187 | END DO |
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[4072] | 188 | !lateral boundary conditions |
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| 189 | CALL lbc_lnk( u_ice(:,:), 'U', -1. ) |
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| 190 | CALL lbc_lnk( v_ice(:,:), 'V', -1. ) |
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[4045] | 191 | !mask velocities |
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| 192 | u_ice(:,:) = u_ice(:,:) * tmu(:,:) |
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| 193 | v_ice(:,:) = v_ice(:,:) * tmv(:,:) |
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| 194 | |
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[4688] | 195 | ! ------------------------------------------------- |
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| 196 | ! Diagnostics |
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| 197 | ! ------------------------------------------------- |
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| 198 | d_a_i_thd(:,:,:) = a_i(:,:,:) - old_a_i(:,:,:) |
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| 199 | d_v_s_thd(:,:,:) = v_s(:,:,:) - old_v_s(:,:,:) |
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| 200 | d_v_i_thd(:,:,:) = v_i(:,:,:) - old_v_i(:,:,:) |
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| 201 | d_e_s_thd(:,:,:,:) = e_s(:,:,:,:) - old_e_s(:,:,:,:) |
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| 202 | d_e_i_thd(:,:,1:nlay_i,:) = e_i(:,:,1:nlay_i,:) - old_e_i(:,:,1:nlay_i,:) |
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| 203 | !?? d_oa_i_thd(:,:,:) = oa_i (:,:,:) - old_oa_i (:,:,:) |
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| 204 | d_smv_i_thd(:,:,:) = 0._wp |
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| 205 | IF( num_sal == 2 ) d_smv_i_thd(:,:,:) = smv_i(:,:,:) - old_smv_i(:,:,:) |
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| 206 | ! diag only (clem) |
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| 207 | dv_dt_thd(:,:,:) = d_v_i_thd(:,:,:) * r1_rdtice * rday |
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| 208 | |
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| 209 | ! heat content variation (W.m-2) |
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| 210 | DO jj = 1, jpj |
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| 211 | DO ji = 1, jpi |
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| 212 | diag_heat_dhc(ji,jj) = ( SUM( d_e_i_trp(ji,jj,1:nlay_i,:) + d_e_i_thd(ji,jj,1:nlay_i,:) ) + & |
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[4765] | 213 | & SUM( d_e_s_trp(ji,jj,1:nlay_s,:) + d_e_s_thd(ji,jj,1:nlay_s,:) ) & |
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| 214 | & ) * unit_fac * r1_rdtice / area(ji,jj) |
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[4045] | 215 | END DO |
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| 216 | END DO |
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| 217 | |
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[4688] | 218 | ! conservation test |
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| 219 | 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] | 220 | |
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| 221 | IF(ln_ctl) THEN ! Control print |
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| 222 | CALL prt_ctl_info(' ') |
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| 223 | CALL prt_ctl_info(' - Cell values : ') |
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| 224 | CALL prt_ctl_info(' ~~~~~~~~~~~~~ ') |
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| 225 | CALL prt_ctl(tab2d_1=area , clinfo1=' lim_update2 : cell area :') |
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| 226 | CALL prt_ctl(tab2d_1=at_i , clinfo1=' lim_update2 : at_i :') |
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| 227 | CALL prt_ctl(tab2d_1=vt_i , clinfo1=' lim_update2 : vt_i :') |
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| 228 | CALL prt_ctl(tab2d_1=vt_s , clinfo1=' lim_update2 : vt_s :') |
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| 229 | CALL prt_ctl(tab2d_1=strength , clinfo1=' lim_update2 : strength :') |
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| 230 | CALL prt_ctl(tab2d_1=u_ice , clinfo1=' lim_update2 : u_ice :', tab2d_2=v_ice , clinfo2=' v_ice :') |
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| 231 | CALL prt_ctl(tab2d_1=old_u_ice , clinfo1=' lim_update2 : old_u_ice :', tab2d_2=old_v_ice , clinfo2=' old_v_ice :') |
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| 232 | |
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| 233 | DO jl = 1, jpl |
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| 234 | CALL prt_ctl_info(' ') |
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| 235 | CALL prt_ctl_info(' - Category : ', ivar1=jl) |
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| 236 | CALL prt_ctl_info(' ~~~~~~~~~~') |
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| 237 | CALL prt_ctl(tab2d_1=ht_i (:,:,jl) , clinfo1= ' lim_update2 : ht_i : ') |
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| 238 | CALL prt_ctl(tab2d_1=ht_s (:,:,jl) , clinfo1= ' lim_update2 : ht_s : ') |
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| 239 | CALL prt_ctl(tab2d_1=t_su (:,:,jl) , clinfo1= ' lim_update2 : t_su : ') |
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| 240 | CALL prt_ctl(tab2d_1=t_s (:,:,1,jl) , clinfo1= ' lim_update2 : t_snow : ') |
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| 241 | CALL prt_ctl(tab2d_1=sm_i (:,:,jl) , clinfo1= ' lim_update2 : sm_i : ') |
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| 242 | CALL prt_ctl(tab2d_1=o_i (:,:,jl) , clinfo1= ' lim_update2 : o_i : ') |
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| 243 | CALL prt_ctl(tab2d_1=a_i (:,:,jl) , clinfo1= ' lim_update2 : a_i : ') |
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| 244 | CALL prt_ctl(tab2d_1=old_a_i (:,:,jl) , clinfo1= ' lim_update2 : old_a_i : ') |
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| 245 | CALL prt_ctl(tab2d_1=d_a_i_thd (:,:,jl) , clinfo1= ' lim_update2 : d_a_i_thd : ') |
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| 246 | CALL prt_ctl(tab2d_1=v_i (:,:,jl) , clinfo1= ' lim_update2 : v_i : ') |
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| 247 | CALL prt_ctl(tab2d_1=old_v_i (:,:,jl) , clinfo1= ' lim_update2 : old_v_i : ') |
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| 248 | CALL prt_ctl(tab2d_1=d_v_i_thd (:,:,jl) , clinfo1= ' lim_update2 : d_v_i_thd : ') |
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| 249 | CALL prt_ctl(tab2d_1=v_s (:,:,jl) , clinfo1= ' lim_update2 : v_s : ') |
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| 250 | CALL prt_ctl(tab2d_1=old_v_s (:,:,jl) , clinfo1= ' lim_update2 : old_v_s : ') |
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| 251 | CALL prt_ctl(tab2d_1=d_v_s_thd (:,:,jl) , clinfo1= ' lim_update2 : d_v_s_thd : ') |
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| 252 | CALL prt_ctl(tab2d_1=e_i (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : e_i1 : ') |
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| 253 | CALL prt_ctl(tab2d_1=old_e_i (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : old_e_i1 : ') |
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| 254 | CALL prt_ctl(tab2d_1=d_e_i_thd (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : de_i1_thd : ') |
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| 255 | CALL prt_ctl(tab2d_1=e_i (:,:,2,jl)/1.0e9, clinfo1= ' lim_update2 : e_i2 : ') |
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| 256 | CALL prt_ctl(tab2d_1=old_e_i (:,:,2,jl)/1.0e9, clinfo1= ' lim_update2 : old_e_i2 : ') |
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| 257 | CALL prt_ctl(tab2d_1=d_e_i_thd (:,:,2,jl)/1.0e9, clinfo1= ' lim_update2 : de_i2_thd : ') |
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| 258 | CALL prt_ctl(tab2d_1=e_s (:,:,1,jl) , clinfo1= ' lim_update2 : e_snow : ') |
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| 259 | CALL prt_ctl(tab2d_1=old_e_s (:,:,1,jl) , clinfo1= ' lim_update2 : old_e_snow : ') |
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| 260 | CALL prt_ctl(tab2d_1=d_e_s_thd (:,:,1,jl)/1.0e9, clinfo1= ' lim_update2 : d_e_s_thd : ') |
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| 261 | CALL prt_ctl(tab2d_1=smv_i (:,:,jl) , clinfo1= ' lim_update2 : smv_i : ') |
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| 262 | CALL prt_ctl(tab2d_1=old_smv_i (:,:,jl) , clinfo1= ' lim_update2 : old_smv_i : ') |
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| 263 | CALL prt_ctl(tab2d_1=d_smv_i_thd(:,:,jl) , clinfo1= ' lim_update2 : d_smv_i_thd : ') |
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| 264 | CALL prt_ctl(tab2d_1=oa_i (:,:,jl) , clinfo1= ' lim_update2 : oa_i : ') |
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| 265 | CALL prt_ctl(tab2d_1=old_oa_i (:,:,jl) , clinfo1= ' lim_update2 : old_oa_i : ') |
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| 266 | CALL prt_ctl(tab2d_1=d_oa_i_thd (:,:,jl) , clinfo1= ' lim_update2 : d_oa_i_thd : ') |
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| 267 | |
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| 268 | DO jk = 1, nlay_i |
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| 269 | CALL prt_ctl_info(' - Layer : ', ivar1=jk) |
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| 270 | CALL prt_ctl(tab2d_1=t_i(:,:,jk,jl) , clinfo1= ' lim_update2 : t_i : ') |
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| 271 | END DO |
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| 272 | END DO |
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| 273 | |
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| 274 | CALL prt_ctl_info(' ') |
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| 275 | CALL prt_ctl_info(' - Heat / FW fluxes : ') |
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| 276 | CALL prt_ctl_info(' ~~~~~~~~~~~~~~~~~~ ') |
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| 277 | CALL prt_ctl(tab2d_1=sst_m , clinfo1= ' lim_update2 : sst : ', tab2d_2=sss_m , clinfo2= ' sss : ') |
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| 278 | |
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| 279 | CALL prt_ctl_info(' ') |
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| 280 | CALL prt_ctl_info(' - Stresses : ') |
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| 281 | CALL prt_ctl_info(' ~~~~~~~~~~ ') |
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| 282 | CALL prt_ctl(tab2d_1=utau , clinfo1= ' lim_update2 : utau : ', tab2d_2=vtau , clinfo2= ' vtau : ') |
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| 283 | CALL prt_ctl(tab2d_1=utau_ice , clinfo1= ' lim_update2 : utau_ice : ', tab2d_2=vtau_ice , clinfo2= ' vtau_ice : ') |
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| 284 | CALL prt_ctl(tab2d_1=u_oce , clinfo1= ' lim_update2 : u_oce : ', tab2d_2=v_oce , clinfo2= ' v_oce : ') |
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| 285 | ENDIF |
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| 286 | |
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[4688] | 287 | IF( nn_timing == 1 ) CALL timing_stop('limupdate2') |
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[4045] | 288 | |
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| 289 | END SUBROUTINE lim_update2 |
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| 290 | #else |
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| 291 | !!---------------------------------------------------------------------- |
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| 292 | !! Default option Empty Module No sea-ice model |
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| 293 | !!---------------------------------------------------------------------- |
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| 294 | CONTAINS |
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| 295 | SUBROUTINE lim_update2 ! Empty routine |
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| 296 | END SUBROUTINE lim_update2 |
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| 297 | |
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| 298 | #endif |
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| 299 | |
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| 300 | END MODULE limupdate2 |
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