[8426] | 1 | MODULE icecor |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE icecor *** |
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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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| 7 | !! 3.5 ! 2014-06 (C. Rousset) Complete rewriting/cleaning |
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| 8 | !!---------------------------------------------------------------------- |
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| 9 | #if defined key_lim3 |
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| 10 | !!---------------------------------------------------------------------- |
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[8486] | 11 | !! 'key_lim3' LIM3 sea-ice model |
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[8426] | 12 | !!---------------------------------------------------------------------- |
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[8486] | 13 | !! ice_cor : computes update of sea-ice global variables from trend terms |
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[8426] | 14 | !!---------------------------------------------------------------------- |
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[8486] | 15 | USE dom_oce ! ocean domain |
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| 16 | USE phycst ! physical constants |
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| 17 | USE ice ! sea-ice: variable |
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| 18 | USE ice1D ! sea-ice: thermodynamic sea-ice variables |
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| 19 | USE iceitd ! sea-ice: rebining |
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| 20 | USE icevar ! sea-ice: operations |
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| 21 | USE icectl ! sea-ice: control prints |
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[8426] | 22 | ! |
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[8486] | 23 | USE in_out_manager ! I/O manager |
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| 24 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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| 25 | USE lbclnk ! lateral boundary condition - MPP link |
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| 26 | USE lib_mpp ! MPP library |
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| 27 | USE timing ! Timing |
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[8498] | 28 | USE iom ! |
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[8426] | 29 | |
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| 30 | IMPLICIT NONE |
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| 31 | PRIVATE |
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| 32 | |
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[8486] | 33 | PUBLIC ice_cor ! called by icestp.F90 |
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[8426] | 34 | |
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| 35 | !! * Substitutions |
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| 36 | # include "vectopt_loop_substitute.h90" |
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| 37 | !!---------------------------------------------------------------------- |
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[8486] | 38 | !! NEMO/ICE 4.0 , NEMO Consortium (2017) |
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[8426] | 39 | !! $Id: icecor.F90 8378 2017-07-26 13:55:59Z clem $ |
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| 40 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 41 | !!---------------------------------------------------------------------- |
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| 42 | CONTAINS |
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| 43 | |
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[8486] | 44 | SUBROUTINE ice_cor( kt, kn ) |
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| 45 | !!---------------------------------------------------------------------- |
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[8426] | 46 | !! *** ROUTINE ice_cor *** |
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| 47 | !! |
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[8486] | 48 | !! ** Purpose : Computes corrections on sea-ice global variables at |
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| 49 | !! the end of the dynamics. |
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| 50 | !!---------------------------------------------------------------------- |
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[8426] | 51 | INTEGER, INTENT(in) :: kt ! number of iteration |
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| 52 | INTEGER, INTENT(in) :: kn ! 1 = after dyn ; 2 = after thermo |
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[8486] | 53 | ! |
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[8426] | 54 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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[8486] | 55 | REAL(wp) :: zsal, zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b, zzc |
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[8498] | 56 | REAL(wp), DIMENSION(jpi,jpj) :: zafx ! concentration trends diag |
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[8486] | 57 | !!---------------------------------------------------------------------- |
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| 58 | IF( nn_timing == 1 ) CALL timing_start('icecor') |
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| 59 | ! |
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[8426] | 60 | IF( kt == nit000 .AND. lwp .AND. kn == 2 ) THEN |
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| 61 | WRITE(numout,*) |
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[8512] | 62 | WRITE(numout,*) 'ice_cor: correct sea ice variables if out of bounds ' |
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| 63 | WRITE(numout,*) '~~~~~~~' |
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[8426] | 64 | ENDIF |
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[8486] | 65 | ! !--- conservation test |
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[8514] | 66 | IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icecor', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[8486] | 67 | ! |
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| 68 | ! |
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[8498] | 69 | IF( kn == 2 ) THEN |
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[8486] | 70 | ! !----------------------------------------------------- |
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[8498] | 71 | ! ! thickness of the smallest category above himin ! |
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| 72 | ! !----------------------------------------------------- |
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| 73 | WHERE( a_i(:,:,1) >= epsi20 ) ; ht_i(:,:,1) = v_i (:,:,1) / a_i(:,:,1) |
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| 74 | ELSEWHERE ; ht_i(:,:,1) = 0._wp |
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| 75 | END WHERE |
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| 76 | WHERE( ht_i(:,:,1) < rn_himin ) a_i (:,:,1) = a_i (:,:,1) * ht_i(:,:,1) / rn_himin |
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[8486] | 77 | ! |
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| 78 | ENDIF |
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| 79 | ! !----------------------------------------------------- |
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[8498] | 80 | ! ! ice concentration should not exceed amax ! |
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| 81 | ! !----------------------------------------------------- |
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| 82 | at_i(:,:) = SUM( a_i(:,:,:), dim=3 ) |
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[8426] | 83 | DO jl = 1, jpl |
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[8498] | 84 | WHERE( at_i(:,:) > rn_amax_2d(:,:) ) a_i(:,:,jl) = a_i(:,:,jl) * rn_amax_2d(:,:) / at_i(:,:) |
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[8426] | 85 | END DO |
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| 86 | |
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[8486] | 87 | ! !----------------------------------------------------- |
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[8514] | 88 | IF ( nn_icesal == 2 ) THEN ! salinity must stay in bounds [Simin,Simax] ! |
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[8486] | 89 | ! !----------------------------------------------------- |
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| 90 | zzc = rhoic * r1_rdtice |
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[8498] | 91 | DO jl = 1, jpl |
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[8426] | 92 | DO jj = 1, jpj |
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| 93 | DO ji = 1, jpi |
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[8498] | 94 | zsal = smv_i(ji,jj,jl) |
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| 95 | smv_i(ji,jj,jl) = MIN( MAX( rn_simin*v_i(ji,jj,jl) , smv_i(ji,jj,jl) ) , rn_simax*v_i(ji,jj,jl) ) |
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| 96 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( smv_i(ji,jj,jl) - zsal ) * zzc ! associated salt flux |
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[8426] | 97 | END DO |
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| 98 | END DO |
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| 99 | END DO |
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| 100 | ENDIF |
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| 101 | |
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[8486] | 102 | ! !----------------------------------------------------- |
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| 103 | ! ! Rebin categories with thickness out of bounds ! |
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| 104 | ! !----------------------------------------------------- |
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[8512] | 105 | IF ( jpl > 1 ) CALL ice_itd_reb( kt ) |
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[8426] | 106 | |
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[8486] | 107 | ! !----------------------------------------------------- |
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| 108 | CALL ice_var_zapsmall ! Zap small values ! |
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| 109 | ! !----------------------------------------------------- |
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[8426] | 110 | |
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[8486] | 111 | ! !----------------------------------------------------- |
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| 112 | IF( kn == 2 ) THEN ! Ice drift case: Corrections to avoid wrong values ! |
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| 113 | DO jj = 2, jpjm1 !----------------------------------------------------- |
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[8426] | 114 | DO ji = 2, jpim1 |
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[8486] | 115 | IF ( at_i(ji,jj) == 0._wp ) THEN ! what to do if there is no ice |
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| 116 | IF ( at_i(ji+1,jj) == 0._wp ) u_ice(ji ,jj) = 0._wp ! right side |
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| 117 | IF ( at_i(ji-1,jj) == 0._wp ) u_ice(ji-1,jj) = 0._wp ! left side |
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| 118 | IF ( at_i(ji,jj+1) == 0._wp ) v_ice(ji,jj ) = 0._wp ! upper side |
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| 119 | IF ( at_i(ji,jj-1) == 0._wp ) v_ice(ji,jj-1) = 0._wp ! bottom side |
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[8426] | 120 | ENDIF |
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| 121 | END DO |
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| 122 | END DO |
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[8486] | 123 | CALL lbc_lnk_multi( u_ice, 'U', -1., v_ice, 'V', -1. ) ! lateral boundary conditions |
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[8426] | 124 | ENDIF |
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[8486] | 125 | |
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| 126 | !!gm I guess the trends are only out on demand |
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| 127 | !! So please, only do this is it exite an iom_use of on a these variables |
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| 128 | !! furthermore, only allocate the diag_ arrays in this case |
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| 129 | !! and do the iom_put here so that it is only a local allocation |
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| 130 | !!gm |
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| 131 | ! !----------------------------------------------------- |
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| 132 | SELECT CASE( kn ) ! Diagnostics ! |
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| 133 | ! !----------------------------------------------------- |
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| 134 | CASE( 1 ) !--- dyn trend diagnostics |
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| 135 | ! |
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| 136 | !!gm here I think the number of ice cat is too small to use a SUM instruction... |
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[8426] | 137 | DO jj = 1, jpj |
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| 138 | DO ji = 1, jpi |
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[8486] | 139 | ! ! heat content variation (W.m-2) |
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| 140 | diag_heat(ji,jj) = - ( SUM( e_i(ji,jj,1:nlay_i,:) - e_i_b(ji,jj,1:nlay_i,:) ) & |
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| 141 | & + SUM( e_s(ji,jj,1:nlay_s,:) - e_s_b(ji,jj,1:nlay_s,:) ) ) * r1_rdtice |
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| 142 | ! ! salt, volume |
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[8426] | 143 | diag_smvi(ji,jj) = SUM( smv_i(ji,jj,:) - smv_i_b(ji,jj,:) ) * rhoic * r1_rdtice |
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| 144 | diag_vice(ji,jj) = SUM( v_i (ji,jj,:) - v_i_b (ji,jj,:) ) * rhoic * r1_rdtice |
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| 145 | diag_vsnw(ji,jj) = SUM( v_s (ji,jj,:) - v_s_b (ji,jj,:) ) * rhosn * r1_rdtice |
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| 146 | END DO |
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| 147 | END DO |
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[8498] | 148 | ! ! concentration tendency (dynamics) |
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| 149 | zafx (:,:) = SUM( a_i(:,:,:) - a_i_b(:,:,:), dim=3 ) * r1_rdtice |
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| 150 | afx_tot(:,:) = zafx(:,:) |
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| 151 | IF( iom_use('afxdyn') ) CALL iom_put( 'afxdyn' , zafx(:,:) ) |
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[8486] | 152 | ! |
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| 153 | CASE( 2 ) !--- thermo trend diagnostics & ice aging |
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| 154 | ! |
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[8498] | 155 | oa_i(:,:,:) = oa_i(:,:,:) + a_i(:,:,:) * rdt_ice ! ice natural aging incrementation |
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[8486] | 156 | ! |
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| 157 | !!gm here I think the number of ice cat is too small to use a SUM instruction... |
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[8426] | 158 | DO jj = 1, jpj |
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| 159 | DO ji = 1, jpi |
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[8486] | 160 | ! ! heat content variation (W.m-2) |
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| 161 | diag_heat(ji,jj) = diag_heat(ji,jj) - ( SUM( e_i(ji,jj,1:nlay_i,:) - e_i_b(ji,jj,1:nlay_i,:) ) & |
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| 162 | & + SUM( e_s(ji,jj,1:nlay_s,:) - e_s_b(ji,jj,1:nlay_s,:) ) ) * r1_rdtice |
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| 163 | ! ! salt, volume |
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[8426] | 164 | 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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| 165 | 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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| 166 | 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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| 167 | END DO |
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| 168 | END DO |
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[8498] | 169 | ! ! concentration tendency (total + thermo) |
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| 170 | zafx (:,:) = SUM( a_i(:,:,:) - a_i_b(:,:,:), dim=3 ) * r1_rdtice |
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| 171 | afx_tot(:,:) = afx_tot(:,:) + zafx(:,:) |
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| 172 | IF( iom_use('afxthd') ) CALL iom_put( 'afxthd' , zafx(:,:) ) |
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| 173 | IF( iom_use('afxtot') ) CALL iom_put( 'afxtot' , afx_tot(:,:) ) |
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[8486] | 174 | ! |
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| 175 | END SELECT |
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| 176 | ! |
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| 177 | ! !--- conservation test |
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[8514] | 178 | IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icecor', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) |
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[8486] | 179 | ! |
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| 180 | ! !--- control prints |
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| 181 | IF( ln_ctl ) CALL ice_prt3D( 'icecor' ) |
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[8514] | 182 | IF( ln_icectl .AND. kn == 2 ) CALL ice_prt( kt, iiceprt, jiceprt, 2, ' - Final state - ' ) |
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[8486] | 183 | ! |
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| 184 | IF( nn_timing == 1 ) CALL timing_stop('icecor') |
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| 185 | ! |
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[8426] | 186 | END SUBROUTINE ice_cor |
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| 187 | |
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[8486] | 188 | #else |
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| 189 | !!---------------------------------------------------------------------- |
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| 190 | !! Default option Dummy module NO LIM 3.0 sea-ice model |
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| 191 | !!---------------------------------------------------------------------- |
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[8426] | 192 | #endif |
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| 193 | |
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[8486] | 194 | !!====================================================================== |
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[8426] | 195 | END MODULE icecor |
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