[8586] | 1 | MODULE icecor |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE icecor *** |
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[9604] | 4 | !! sea-ice: Corrections on sea-ice variables at the end of the time step |
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[8586] | 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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[9604] | 8 | !! 4.0 ! 2018 (many people) SI3 [aka Sea Ice cube] |
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[8586] | 9 | !!---------------------------------------------------------------------- |
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[9570] | 10 | #if defined key_si3 |
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[8586] | 11 | !!---------------------------------------------------------------------- |
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[9570] | 12 | !! 'key_si3' SI3 sea-ice model |
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[8586] | 13 | !!---------------------------------------------------------------------- |
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| 14 | !! ice_cor : corrections on sea-ice variables |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE dom_oce ! ocean domain |
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| 17 | USE phycst ! physical constants |
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| 18 | USE ice ! sea-ice: variable |
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| 19 | USE ice1D ! sea-ice: thermodynamic sea-ice variables |
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| 20 | USE iceitd ! sea-ice: rebining |
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| 21 | USE icevar ! sea-ice: operations |
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| 22 | USE icectl ! sea-ice: control prints |
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| 23 | ! |
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| 24 | USE in_out_manager ! I/O manager |
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| 25 | USE iom ! I/O manager library |
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| 26 | USE lib_mpp ! MPP library |
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| 27 | USE lib_fortran ! fortran utilities (glob_sum + no signed zero) |
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| 28 | USE lbclnk ! lateral boundary conditions (or mpp links) |
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| 29 | USE timing ! Timing |
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| 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | PRIVATE |
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| 33 | |
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| 34 | PUBLIC ice_cor ! called by icestp.F90 |
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| 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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[9598] | 39 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
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[10069] | 40 | !! $Id$ |
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[10068] | 41 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[8586] | 42 | !!---------------------------------------------------------------------- |
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| 43 | CONTAINS |
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| 44 | |
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| 45 | SUBROUTINE ice_cor( kt, kn ) |
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| 46 | !!---------------------------------------------------------------------- |
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| 47 | !! *** ROUTINE ice_cor *** |
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| 48 | !! |
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| 49 | !! ** Purpose : Computes corrections on sea-ice global variables at |
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| 50 | !! the end of the dynamics (kn=1) and thermodynamics (kn=2) |
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| 51 | !!---------------------------------------------------------------------- |
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| 52 | INTEGER, INTENT(in) :: kt ! number of iteration |
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| 53 | INTEGER, INTENT(in) :: kn ! 1 = after dyn ; 2 = after thermo |
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| 54 | ! |
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| 55 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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| 56 | REAL(wp) :: zsal, zzc |
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| 57 | REAL(wp), DIMENSION(jpi,jpj) :: zafx ! concentration trends diag |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | ! controls |
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[9124] | 60 | IF( ln_timing ) CALL timing_start('icecor') ! timing |
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| 61 | IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icecor', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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[8586] | 62 | ! |
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| 63 | IF( kt == nit000 .AND. lwp .AND. kn == 2 ) THEN |
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| 64 | WRITE(numout,*) |
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| 65 | WRITE(numout,*) 'ice_cor: correct sea ice variables if out of bounds ' |
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| 66 | WRITE(numout,*) '~~~~~~~' |
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| 67 | ENDIF |
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| 68 | ! |
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| 69 | ! !----------------------------------------------------- |
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[9415] | 70 | ! ! ice thickness must exceed himin (for ice diff) ! |
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| 71 | ! !----------------------------------------------------- |
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| 72 | WHERE( a_i(:,:,:) >= epsi20 ) ; h_i(:,:,:) = v_i(:,:,:) / a_i(:,:,:) |
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| 73 | ELSEWHERE ; h_i(:,:,:) = 0._wp |
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| 74 | END WHERE |
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| 75 | WHERE( h_i(:,:,:) < rn_himin ) a_i(:,:,:) = a_i(:,:,:) * h_i(:,:,:) / rn_himin |
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| 76 | ! |
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| 77 | ! !----------------------------------------------------- |
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[8586] | 78 | ! ! ice concentration should not exceed amax ! |
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| 79 | ! !----------------------------------------------------- |
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| 80 | at_i(:,:) = SUM( a_i(:,:,:), dim=3 ) |
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| 81 | DO jl = 1, jpl |
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| 82 | WHERE( at_i(:,:) > rn_amax_2d(:,:) ) a_i(:,:,jl) = a_i(:,:,jl) * rn_amax_2d(:,:) / at_i(:,:) |
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| 83 | END DO |
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| 84 | |
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| 85 | ! !----------------------------------------------------- |
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| 86 | IF ( nn_icesal == 2 ) THEN ! salinity must stay in bounds [Simin,Simax] ! |
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| 87 | ! !----------------------------------------------------- |
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[9935] | 88 | zzc = rhoi * r1_rdtice |
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[8586] | 89 | DO jl = 1, jpl |
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| 90 | DO jj = 1, jpj |
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| 91 | DO ji = 1, jpi |
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| 92 | zsal = sv_i(ji,jj,jl) |
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| 93 | sv_i(ji,jj,jl) = MIN( MAX( rn_simin*v_i(ji,jj,jl) , sv_i(ji,jj,jl) ) , rn_simax*v_i(ji,jj,jl) ) |
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| 94 | sfx_res(ji,jj) = sfx_res(ji,jj) - ( sv_i(ji,jj,jl) - zsal ) * zzc ! associated salt flux |
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| 95 | END DO |
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| 96 | END DO |
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| 97 | END DO |
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| 98 | ENDIF |
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| 99 | |
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| 100 | ! !----------------------------------------------------- |
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| 101 | ! ! Rebin categories with thickness out of bounds ! |
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| 102 | ! !----------------------------------------------------- |
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| 103 | IF ( jpl > 1 ) CALL ice_itd_reb( kt ) |
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| 104 | |
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| 105 | ! !----------------------------------------------------- |
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| 106 | CALL ice_var_zapsmall ! Zap small values ! |
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| 107 | ! !----------------------------------------------------- |
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| 108 | |
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| 109 | ! !----------------------------------------------------- |
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| 110 | IF( kn == 2 ) THEN ! Ice drift case: Corrections to avoid wrong values ! |
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| 111 | DO jj = 2, jpjm1 !----------------------------------------------------- |
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| 112 | DO ji = 2, jpim1 |
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| 113 | IF ( at_i(ji,jj) == 0._wp ) THEN ! what to do if there is no ice |
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| 114 | IF ( at_i(ji+1,jj) == 0._wp ) u_ice(ji ,jj) = 0._wp ! right side |
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| 115 | IF ( at_i(ji-1,jj) == 0._wp ) u_ice(ji-1,jj) = 0._wp ! left side |
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| 116 | IF ( at_i(ji,jj+1) == 0._wp ) v_ice(ji,jj ) = 0._wp ! upper side |
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| 117 | IF ( at_i(ji,jj-1) == 0._wp ) v_ice(ji,jj-1) = 0._wp ! bottom side |
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| 118 | ENDIF |
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| 119 | END DO |
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| 120 | END DO |
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[10425] | 121 | CALL lbc_lnk_multi( 'icecor', u_ice, 'U', -1., v_ice, 'V', -1. ) ! lateral boundary conditions |
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[8586] | 122 | ENDIF |
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| 123 | |
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| 124 | !!gm I guess the trends are only out on demand |
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| 125 | !! So please, only do this is it exite an iom_use of on a these variables |
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| 126 | !! furthermore, only allocate the diag_ arrays in this case |
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| 127 | !! and do the iom_put here so that it is only a local allocation |
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| 128 | !!gm |
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| 129 | ! !----------------------------------------------------- |
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| 130 | SELECT CASE( kn ) ! Diagnostics ! |
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| 131 | ! !----------------------------------------------------- |
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| 132 | CASE( 1 ) !--- dyn trend diagnostics |
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| 133 | ! |
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| 134 | !!gm here I think the number of ice cat is too small to use a SUM instruction... |
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| 135 | DO jj = 1, jpj |
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| 136 | DO ji = 1, jpi |
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| 137 | ! ! heat content variation (W.m-2) |
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| 138 | diag_heat(ji,jj) = - ( SUM( e_i(ji,jj,1:nlay_i,:) - e_i_b(ji,jj,1:nlay_i,:) ) & |
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| 139 | & + SUM( e_s(ji,jj,1:nlay_s,:) - e_s_b(ji,jj,1:nlay_s,:) ) ) * r1_rdtice |
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| 140 | ! ! salt, volume |
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[9935] | 141 | diag_sice(ji,jj) = SUM( sv_i(ji,jj,:) - sv_i_b(ji,jj,:) ) * rhoi * r1_rdtice |
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| 142 | diag_vice(ji,jj) = SUM( v_i (ji,jj,:) - v_i_b (ji,jj,:) ) * rhoi * r1_rdtice |
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| 143 | diag_vsnw(ji,jj) = SUM( v_s (ji,jj,:) - v_s_b (ji,jj,:) ) * rhos * r1_rdtice |
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[8586] | 144 | END DO |
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| 145 | END DO |
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| 146 | ! ! concentration tendency (dynamics) |
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| 147 | zafx (:,:) = SUM( a_i(:,:,:) - a_i_b(:,:,:), dim=3 ) * r1_rdtice |
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| 148 | afx_tot(:,:) = zafx(:,:) |
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| 149 | IF( iom_use('afxdyn') ) CALL iom_put( 'afxdyn' , zafx(:,:) ) |
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| 150 | ! |
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| 151 | CASE( 2 ) !--- thermo trend diagnostics & ice aging |
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| 152 | ! |
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| 153 | oa_i(:,:,:) = oa_i(:,:,:) + a_i(:,:,:) * rdt_ice ! ice natural aging incrementation |
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| 154 | ! |
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| 155 | !!gm here I think the number of ice cat is too small to use a SUM instruction... |
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| 156 | DO jj = 1, jpj |
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| 157 | DO ji = 1, jpi |
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| 158 | ! ! heat content variation (W.m-2) |
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| 159 | 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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| 160 | & + SUM( e_s(ji,jj,1:nlay_s,:) - e_s_b(ji,jj,1:nlay_s,:) ) ) * r1_rdtice |
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| 161 | ! ! salt, volume |
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[9935] | 162 | diag_sice(ji,jj) = diag_sice(ji,jj) + SUM( sv_i(ji,jj,:) - sv_i_b(ji,jj,:) ) * rhoi * r1_rdtice |
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| 163 | diag_vice(ji,jj) = diag_vice(ji,jj) + SUM( v_i (ji,jj,:) - v_i_b (ji,jj,:) ) * rhoi * r1_rdtice |
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| 164 | diag_vsnw(ji,jj) = diag_vsnw(ji,jj) + SUM( v_s (ji,jj,:) - v_s_b (ji,jj,:) ) * rhos * r1_rdtice |
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[8586] | 165 | END DO |
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| 166 | END DO |
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| 167 | ! ! concentration tendency (total + thermo) |
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| 168 | zafx (:,:) = SUM( a_i(:,:,:) - a_i_b(:,:,:), dim=3 ) * r1_rdtice |
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| 169 | afx_tot(:,:) = afx_tot(:,:) + zafx(:,:) |
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| 170 | IF( iom_use('afxthd') ) CALL iom_put( 'afxthd' , zafx(:,:) ) |
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| 171 | IF( iom_use('afxtot') ) CALL iom_put( 'afxtot' , afx_tot(:,:) ) |
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| 172 | ! |
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| 173 | END SELECT |
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| 174 | ! |
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| 175 | ! controls |
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| 176 | IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icecor', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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| 177 | IF( ln_ctl ) CALL ice_prt3D ('icecor') ! prints |
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| 178 | IF( ln_icectl .AND. kn == 2 ) CALL ice_prt( kt, iiceprt, jiceprt, 2, ' - Final state - ' ) ! prints |
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[9124] | 179 | IF( ln_timing ) CALL timing_stop ('icecor') ! timing |
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[8586] | 180 | ! |
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| 181 | END SUBROUTINE ice_cor |
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| 182 | |
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| 183 | #else |
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| 184 | !!---------------------------------------------------------------------- |
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[9570] | 185 | !! Default option Dummy module NO SI3 sea-ice model |
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[8586] | 186 | !!---------------------------------------------------------------------- |
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| 187 | #endif |
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| 188 | |
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| 189 | !!====================================================================== |
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| 190 | END MODULE icecor |
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