[4045] | 1 | MODULE limupdate1 |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE limupdate1 *** |
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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_update1 : 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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[5123] | 17 | USE dom_oce |
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[4045] | 18 | USE phycst ! physical constants |
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| 19 | USE ice |
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| 20 | USE thd_ice ! LIM thermodynamic sea-ice variables |
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| 21 | USE limitd_th |
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| 22 | USE limvar |
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[5123] | 23 | USE wrk_nemo ! work arrays |
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[4072] | 24 | USE timing ! Timing |
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[5123] | 25 | USE limcons ! conservation tests |
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[7646] | 26 | USE limctl ! control prints |
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[5123] | 27 | USE lib_mpp ! MPP library |
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| 28 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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| 29 | USE in_out_manager ! I/O manager |
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[4045] | 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | PRIVATE |
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| 33 | |
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[5123] | 34 | PUBLIC lim_update1 |
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[4045] | 35 | |
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| 36 | !! * Substitutions |
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| 37 | # include "vectopt_loop_substitute.h90" |
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| 38 | !!---------------------------------------------------------------------- |
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| 39 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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[5215] | 40 | !! $Id$ |
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[4045] | 41 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 42 | !!---------------------------------------------------------------------- |
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| 43 | CONTAINS |
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| 44 | |
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[5123] | 45 | SUBROUTINE lim_update1( kt ) |
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[4045] | 46 | !!------------------------------------------------------------------- |
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| 47 | !! *** ROUTINE lim_update1 *** |
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| 48 | !! |
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| 49 | !! ** Purpose : Computes update of sea-ice global variables at |
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[4688] | 50 | !! the end of the dynamics. |
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[4045] | 51 | !! |
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| 52 | !!--------------------------------------------------------------------- |
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[5123] | 53 | INTEGER, INTENT(in) :: kt ! number of iteration |
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[4869] | 54 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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[4688] | 55 | REAL(wp) :: zsal |
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[5123] | 56 | REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b |
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[4045] | 57 | !!------------------------------------------------------------------- |
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[4072] | 58 | IF( nn_timing == 1 ) CALL timing_start('limupdate1') |
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[4045] | 59 | |
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[5123] | 60 | IF( kt == nit000 .AND. lwp ) THEN |
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[7646] | 61 | WRITE(numout,*)'' |
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| 62 | WRITE(numout,*)' lim_update1 ' |
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| 63 | WRITE(numout,*)' ~~~~~~~~~~~ ' |
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[5123] | 64 | ENDIF |
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| 65 | |
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[4688] | 66 | ! conservation test |
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[7646] | 67 | IF( ln_limdiachk ) CALL lim_cons_hsm(0, 'limupdate1', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[4045] | 68 | |
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| 69 | !---------------------------------------------------- |
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[5134] | 70 | ! ice concentration should not exceed amax |
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| 71 | !----------------------------------------------------- |
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[7753] | 72 | at_i(:,:) = 0._wp |
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[4045] | 73 | DO jl = 1, jpl |
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[7753] | 74 | at_i(:,:) = a_i(:,:,jl) + at_i(:,:) |
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[4045] | 75 | END DO |
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| 76 | |
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[4688] | 77 | DO jl = 1, jpl |
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| 78 | DO jj = 1, jpj |
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[4045] | 79 | DO ji = 1, jpi |
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[6403] | 80 | IF( at_i(ji,jj) > rn_amax_2d(ji,jj) .AND. a_i(ji,jj,jl) > 0._wp ) THEN |
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| 81 | a_i (ji,jj,jl) = a_i (ji,jj,jl) * ( 1._wp - ( 1._wp - rn_amax_2d(ji,jj) / at_i(ji,jj) ) ) |
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| 82 | oa_i(ji,jj,jl) = oa_i(ji,jj,jl) * ( 1._wp - ( 1._wp - rn_amax_2d(ji,jj) / at_i(ji,jj) ) ) |
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[4045] | 83 | ENDIF |
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[4688] | 84 | END DO |
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| 85 | END DO |
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| 86 | END DO |
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| 87 | |
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[4045] | 88 | !--------------------- |
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[4688] | 89 | ! Ice salinity bounds |
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[4045] | 90 | !--------------------- |
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[5123] | 91 | IF ( nn_icesal == 2 ) THEN |
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[4045] | 92 | DO jl = 1, jpl |
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[4688] | 93 | DO jj = 1, jpj |
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| 94 | DO ji = 1, jpi |
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| 95 | zsal = smv_i(ji,jj,jl) |
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| 96 | ! salinity stays in bounds |
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[5123] | 97 | rswitch = 1._wp - MAX( 0._wp, SIGN( 1._wp, - v_i(ji,jj,jl) ) ) |
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| 98 | 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] | 99 | ! associated salt flux |
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| 100 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( smv_i(ji,jj,jl) - zsal ) * rhoic * r1_rdtice |
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| 101 | END DO |
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[4045] | 102 | END DO |
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| 103 | END DO |
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[4688] | 104 | ENDIF |
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[4045] | 105 | |
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[5167] | 106 | !---------------------------------------------------- |
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| 107 | ! Rebin categories with thickness out of bounds |
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| 108 | !---------------------------------------------------- |
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| 109 | IF ( jpl > 1 ) CALL lim_itd_th_reb(1, jpl) |
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[5123] | 110 | |
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[5167] | 111 | !----------------- |
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| 112 | ! zap small values |
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| 113 | !----------------- |
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| 114 | CALL lim_var_zapsmall |
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| 115 | |
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[4688] | 116 | ! ------------------------------------------------- |
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| 117 | ! Diagnostics |
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| 118 | ! ------------------------------------------------- |
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[5123] | 119 | DO jl = 1, jpl |
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[7753] | 120 | afx_dyn(:,:) = afx_dyn(:,:) + ( a_i(:,:,jl) - a_i_b(:,:,jl) ) * r1_rdtice |
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[5123] | 121 | END DO |
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[4045] | 122 | |
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[5123] | 123 | DO jj = 1, jpj |
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| 124 | DO ji = 1, jpi |
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[5167] | 125 | ! heat content variation (W.m-2) |
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| 126 | diag_heat(ji,jj) = - ( SUM( e_i(ji,jj,1:nlay_i,:) - e_i_b(ji,jj,1:nlay_i,:) ) + & |
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| 127 | & SUM( e_s(ji,jj,1:nlay_s,:) - e_s_b(ji,jj,1:nlay_s,:) ) & |
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| 128 | & ) * r1_rdtice |
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| 129 | ! salt, volume |
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| 130 | diag_smvi(ji,jj) = SUM( smv_i(ji,jj,:) - smv_i_b(ji,jj,:) ) * rhoic * r1_rdtice |
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| 131 | diag_vice(ji,jj) = SUM( v_i (ji,jj,:) - v_i_b (ji,jj,:) ) * rhoic * r1_rdtice |
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| 132 | diag_vsnw(ji,jj) = SUM( v_s (ji,jj,:) - v_s_b (ji,jj,:) ) * rhosn * r1_rdtice |
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[5123] | 133 | END DO |
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| 134 | END DO |
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[4045] | 135 | |
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[5167] | 136 | ! conservation test |
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[7646] | 137 | IF( ln_limdiachk ) CALL lim_cons_hsm(1, 'limupdate1', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[5167] | 138 | |
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[5123] | 139 | ! control prints |
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[7646] | 140 | IF( ln_ctl ) CALL lim_prt3D( 'limupdate1' ) |
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[4045] | 141 | |
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[7646] | 142 | IF( nn_timing == 1 ) CALL timing_stop('limupdate1') |
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[4045] | 143 | |
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| 144 | END SUBROUTINE lim_update1 |
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[7646] | 145 | |
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[4045] | 146 | #else |
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| 147 | !!---------------------------------------------------------------------- |
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| 148 | !! Default option Empty Module No sea-ice model |
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| 149 | !!---------------------------------------------------------------------- |
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| 150 | CONTAINS |
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| 151 | SUBROUTINE lim_update1 ! Empty routine |
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| 152 | END SUBROUTINE lim_update1 |
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| 153 | |
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| 154 | #endif |
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| 155 | |
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| 156 | END MODULE limupdate1 |
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