[825] | 1 | MODULE limtrp |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE limtrp *** |
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| 4 | !! LIM transport ice model : sea-ice advection/diffusion |
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| 5 | !!====================================================================== |
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| 6 | #if defined key_lim3 |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! 'key_lim3' : LIM sea-ice model |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! lim_trp : advection/diffusion process of sea ice |
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| 11 | !! lim_trp_init : initialization and namelist read |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! * Modules used |
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| 14 | USE phycst |
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| 15 | USE dom_oce |
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| 16 | USE daymod |
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| 17 | USE in_out_manager ! I/O manager |
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| 18 | USE ice_oce ! ice variables |
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| 19 | USE dom_ice |
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| 20 | USE ice |
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| 21 | USE iceini |
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| 22 | USE limistate |
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| 23 | USE limadv |
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| 24 | USE limhdf |
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| 25 | USE lbclnk |
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| 26 | USE lib_mpp |
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| 27 | USE par_ice |
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| 28 | USE limicepoints |
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| 29 | |
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| 30 | IMPLICIT NONE |
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| 31 | PRIVATE |
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| 32 | |
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| 33 | !! * Routine accessibility |
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| 34 | PUBLIC lim_trp ! called by ice_step |
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| 35 | |
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| 36 | !! * Shared module variables |
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| 37 | REAL(wp), PUBLIC :: & !: |
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| 38 | bound = 0.e0 !: boundary condit. (0.0 no-slip, 1.0 free-slip) |
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| 39 | |
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| 40 | !! * Module variables |
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| 41 | REAL(wp) :: & ! constant values |
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| 42 | epsi06 = 1.e-06 , & |
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| 43 | epsi03 = 1.e-03 , & |
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| 44 | epsi16 = 1.e-16 , & |
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| 45 | rzero = 0.e0 , & |
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| 46 | rone = 1.e0 , & |
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| 47 | zeps10 = 1.e-10 |
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| 48 | |
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| 49 | !! * Substitution |
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| 50 | # include "vectopt_loop_substitute.h90" |
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| 51 | !!---------------------------------------------------------------------- |
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| 52 | !! LIM 2.0, UCL-LOCEAN-IPSL (2005) |
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| 53 | !! $Header: /home/opalod/NEMOCVSROOT/NEMO/LIM_SRC/limtrp.F90,v 1.5 2005/03/27 18:34:42 opalod Exp $ |
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| 54 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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| 55 | !!---------------------------------------------------------------------- |
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| 56 | CONTAINS |
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| 57 | |
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| 58 | SUBROUTINE lim_trp |
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| 59 | !!------------------------------------------------------------------- |
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| 60 | !! *** ROUTINE lim_trp *** |
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| 61 | !! |
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| 62 | !! ** purpose : advection/diffusion process of sea ice |
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| 63 | !! |
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| 64 | !! ** method : variables included in the process are scalar, |
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| 65 | !! other values are considered as second order. |
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| 66 | !! For advection, a second order Prather scheme is used. |
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| 67 | !! |
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| 68 | !! ** action : |
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| 69 | !! |
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| 70 | !! History : |
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| 71 | !! 1.0 ! 00-01 (M.A. Morales Maqueda, H. Goosse, and T. Fichefet) Original code |
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| 72 | !! ! 01-05 (G. Madec, R. Hordoir) opa norm |
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| 73 | !! 2.0 ! 04-01 (G. Madec, C. Ethe) F90, mpp |
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| 74 | !! 3.0 ! 05-11 (M. Vancoppenolle) Multi-layer sea ice, salinity variations |
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| 75 | !!--------------------------------------------------------------------- |
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| 76 | !! * Local Variables |
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| 77 | INTEGER :: ji, jj, jk, jl, index, layer, & ! dummy loop indices |
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| 78 | initad ! number of sub-timestep for the advection |
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| 79 | INTEGER :: ji_maxu, ji_maxv, jj_maxu, jj_maxv |
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| 80 | |
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| 81 | REAL(wp) :: & |
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| 82 | zindb , & |
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| 83 | zacrith, & |
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| 84 | zindsn , & |
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| 85 | zindic , & |
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| 86 | zusvosn, & |
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| 87 | zusvoic, & |
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| 88 | zignm , & |
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| 89 | zindhe , & |
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| 90 | zvbord , & |
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| 91 | zcfl , & |
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| 92 | zusnit , & |
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| 93 | zrtt, ztsn, ztic1, ztic2, zsal, zage, & |
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| 94 | zq, zbigval, ze1, ze2, ze, & |
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| 95 | zmaxu, zmaxv |
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| 96 | |
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| 97 | REAL(wp), DIMENSION(jpi,jpj) :: & ! temporary workspace |
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| 98 | zui_u , zvi_v , zsm , & |
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| 99 | zs0at, zs0ow |
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| 100 | |
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| 101 | REAL(wp), DIMENSION(jpi,jpj,jpl):: & ! temporary workspace |
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| 102 | zs0ice, zs0sn, zs0a , & |
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| 103 | zs0c0 , zs0c1 , zs0c2 , & |
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| 104 | zs0sm , zs0oi |
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| 105 | |
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| 106 | ! MHE Multilayer heat content |
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| 107 | REAL(wp), DIMENSION(jpi,jpj,jkmax,jpl) :: & ! temporary workspace |
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| 108 | zs0e |
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| 109 | |
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| 110 | !--------------------------------------------------------------------- |
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| 111 | |
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| 112 | IF( numit == nstart ) CALL lim_trp_init ! Initialization (first time-step only) |
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| 113 | |
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| 114 | zsm(:,:) = area(:,:) |
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| 115 | |
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| 116 | IF( ln_limdyn ) THEN |
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| 117 | WRITE(numout,*) |
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| 118 | WRITE(numout,*) ' lim_trp : Ice Advection' |
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| 119 | WRITE(numout,*) ' ~~~~~~~' |
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| 120 | |
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| 121 | !-----------------------------------------------------------------------------! |
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| 122 | ! 1) CFL Test |
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| 123 | !-----------------------------------------------------------------------------! |
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| 124 | |
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| 125 | !------------------------------------------ |
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| 126 | ! ice velocities at ocean U- and V-points |
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| 127 | !------------------------------------------ |
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| 128 | |
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| 129 | ! zvbord factor between 1 and 2 to take into account slip or no-slip boundary conditions. |
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| 130 | zvbord = 1.0 + ( 1.0 - bound ) |
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| 131 | DO jj = 1, jpjm1 |
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| 132 | DO ji = 1, jpim1 |
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| 133 | zui_u(ji,jj) = u_ice(ji,jj) |
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| 134 | zvi_v(ji,jj) = v_ice(ji,jj) |
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| 135 | END DO |
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| 136 | END DO |
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| 137 | |
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| 138 | ! Lateral boundary conditions |
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| 139 | CALL lbc_lnk( zui_u, 'U', -1. ) |
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| 140 | CALL lbc_lnk( zvi_v, 'V', -1. ) |
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| 141 | |
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| 142 | !------------------------- |
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| 143 | ! CFL test for stability |
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| 144 | !------------------------- |
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| 145 | |
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| 146 | zcfl = 0.e0 |
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| 147 | zcfl = MAX( zcfl, MAXVAL( ABS( zui_u(1:jpim1, : ) ) * rdt_ice / e1u(1:jpim1, : ) ) ) |
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| 148 | zcfl = MAX( zcfl, MAXVAL( ABS( zvi_v( : ,1:jpjm1) ) * rdt_ice / e2v( : ,1:jpjm1) ) ) |
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| 149 | |
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| 150 | zmaxu = 0.0 |
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| 151 | zmaxv = 0.0 |
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| 152 | DO ji = 1, jpim1 |
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| 153 | DO jj = 1, jpjm1 |
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| 154 | IF ( (ABS(zui_u(ji,jj)) .GT. zmaxu) ) THEN |
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| 155 | zmaxu = MAX(zui_u(ji,jj), zmaxu ) |
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| 156 | ji_maxu = ji |
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| 157 | jj_maxu = jj |
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| 158 | ENDIF |
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| 159 | IF ( (ABS(zvi_v(ji,jj)) .GT. zmaxv) ) THEN |
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| 160 | zmaxv = MAX(zvi_v(ji,jj), zmaxv ) |
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| 161 | ji_maxv = ji |
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| 162 | jj_maxv = jj |
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| 163 | ENDIF |
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| 164 | END DO |
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| 165 | END DO |
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| 166 | |
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| 167 | IF (lk_mpp ) CALL mpp_max(zcfl) |
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| 168 | |
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| 169 | IF ( zcfl > 0.5 .AND. lwp ) & |
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| 170 | WRITE(numout,*) 'lim_trp : violation of cfl criterion the ',nday,'th day, cfl = ',zcfl |
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| 171 | |
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| 172 | !-----------------------------------------------------------------------------! |
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| 173 | ! 2) Computation of transported fields |
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| 174 | !-----------------------------------------------------------------------------! |
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| 175 | |
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| 176 | !------------------------------------------------------ |
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| 177 | ! 1.1) Snow vol, ice vol, salt and age contents, area |
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| 178 | !------------------------------------------------------ |
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| 179 | |
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| 180 | zs0ow (:,:) = ato_i(:,:) * area(:,:) ! Open water area |
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| 181 | DO jl = 1, jpl !sum over thickness categories |
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| 182 | ! area -> is the unmasked and masked area of T-grid cell |
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| 183 | zs0sn (:,:,jl) = v_s(:,:,jl) * area(:,:) ! Snow volume. |
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| 184 | zs0ice(:,:,jl) = v_i(:,:,jl) * area(:,:) ! Ice volume. |
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| 185 | zs0a (:,:,jl) = a_i(:,:,jl) * area(:,:) ! Ice area |
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| 186 | zs0sm (:,:,jl) = smv_i(:,:,jl) * area(:,:) ! Salt content |
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| 187 | zs0oi (:,:,jl) = oa_i (:,:,jl) * area(:,:) ! Age content |
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| 188 | |
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| 189 | !---------------------------------- |
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| 190 | ! 1.2) Ice and snow heat contents |
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| 191 | !---------------------------------- |
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| 192 | |
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| 193 | zs0c0 (:,:,jl) = e_s(:,:,1,jl) ! Snow heat cont. |
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| 194 | DO jk = 1, nlay_i |
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| 195 | zs0e(:,:,jk,jl) = e_i(:,:,jk,jl) ! Ice heat content |
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| 196 | END DO |
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| 197 | END DO |
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| 198 | |
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| 199 | !-----------------------------------------------------------------------------! |
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| 200 | ! 3) Advection of Ice fields |
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| 201 | !-----------------------------------------------------------------------------! |
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| 202 | |
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| 203 | ! If ice drift field is too fast, use an appropriate time step for advection. |
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| 204 | initad = 1 + INT( MAX( rzero, SIGN( rone, zcfl-0.5 ) ) ) |
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| 205 | zusnit = 1.0 / REAL( initad ) |
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| 206 | |
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| 207 | IF ( MOD( nday , 2 ) == 0) THEN |
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| 208 | DO jk = 1,initad |
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| 209 | !--- ice open water area |
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| 210 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0ow(:,:) , sxopw(:,:) , & |
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| 211 | sxxopw(:,:), syopw(:,:) , & |
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| 212 | syyopw(:,:), sxopw(:,:) ) |
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| 213 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0ow(:,:) , sxopw (:,:) , & |
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| 214 | sxxopw(:,:), syopw (:,:) , & |
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| 215 | syyopw(:,:), sxyopw(:,:) ) |
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| 216 | DO jl = 1, jpl |
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| 217 | !--- ice volume --- |
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| 218 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0ice(:,:,jl) , sxice (:,:,jl) , & |
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| 219 | sxxice(:,:,jl) , syice (:,:,jl) , & |
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| 220 | syyice(:,:,jl) , sxyice(:,:,jl) ) |
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| 221 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0ice(:,:,jl) , sxice (:,:,jl) , & |
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| 222 | sxxice(:,:,jl) , syice (:,:,jl) , & |
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| 223 | syyice(:,:,jl) , sxyice(:,:,jl) ) |
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| 224 | !--- snow volume --- |
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| 225 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0sn (:,:,jl) , sxsn (:,:,jl) , & |
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| 226 | sxxsn (:,:,jl) , sysn (:,:,jl) , & |
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| 227 | syysn (:,:,jl) , sxysn (:,:,jl) ) |
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| 228 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0sn (:,:,jl) , sxsn (:,:,jl) , & |
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| 229 | sxxsn (:,:,jl) , sysn (:,:,jl) , & |
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| 230 | syysn (:,:,jl) , sxysn (:,:,jl) ) |
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| 231 | !--- ice salinity --- |
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| 232 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0sm (:,:,jl) , sxsal (:,:,jl) , & |
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| 233 | sxxsal(:,:,jl) , sysal (:,:,jl) , & |
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| 234 | syysal(:,:,jl) , sxysal(:,:,jl) ) |
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| 235 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0sm (:,:,jl) , sxsal (:,:,jl) , & |
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| 236 | sxxsal(:,:,jl) , sysal (:,:,jl) , & |
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| 237 | syysal(:,:,jl) , sxysal(:,:,jl) ) |
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| 238 | !--- ice age --- |
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| 239 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0oi (:,:,jl) , sxage (:,:,jl) , & |
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| 240 | sxxage(:,:,jl) , syage (:,:,jl) , & |
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| 241 | syyage(:,:,jl) , sxyage(:,:,jl) ) |
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| 242 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0oi (:,:,jl) , sxage (:,:,jl) , & |
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| 243 | sxxage(:,:,jl) , syage (:,:,jl) , & |
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| 244 | syyage(:,:,jl) , sxyage(:,:,jl) ) |
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| 245 | !--- ice concentrations --- |
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| 246 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0a (:,:,jl) , sxa (:,:,jl) , & |
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| 247 | sxxa (:,:,jl) , sya (:,:,jl) , & |
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| 248 | syya (:,:,jl) , sxya (:,:,jl) ) |
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| 249 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0a (:,:,jl) , sxa (:,:,jl) , & |
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| 250 | sxxa (:,:,jl) , sya (:,:,jl) , & |
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| 251 | syya (:,:,jl) , sxya (:,:,jl) ) |
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| 252 | !--- ice / snow thermal energetic contents --- |
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| 253 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, zs0c0 (:,:,jl) , sxc0 (:,:,jl) , & |
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| 254 | sxxc0 (:,:,jl) , syc0 (:,:,jl) , & |
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| 255 | syyc0 (:,:,jl) , sxyc0 (:,:,jl) ) |
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| 256 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, zs0c0 (:,:,jl) , sxc0 (:,:,jl) , & |
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| 257 | sxxc0 (:,:,jl) , syc0 (:,:,jl) , & |
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| 258 | syyc0 (:,:,jl) , sxyc0 (:,:,jl) ) |
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| 259 | DO layer = 1, nlay_i |
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| 260 | CALL lim_adv_x( zusnit, zui_u, rone , zsm, & |
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| 261 | zs0e(:,:,layer,jl) , sxe (:,:,layer,jl) , & |
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| 262 | sxxe(:,:,layer,jl) , sye (:,:,layer,jl) , & |
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| 263 | syye(:,:,layer,jl) , sxye(:,:,layer,jl) ) |
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| 264 | CALL lim_adv_y( zusnit, zvi_v, rzero, zsm, & |
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| 265 | zs0e(:,:,layer,jl) , sxe (:,:,layer,jl) , & |
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| 266 | sxxe(:,:,layer,jl) , sye (:,:,layer,jl) , & |
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| 267 | syye(:,:,layer,jl) , sxye(:,:,layer,jl) ) |
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| 268 | END DO |
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| 269 | END DO |
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| 270 | END DO |
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| 271 | ELSE |
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| 272 | DO jk = 1, initad |
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| 273 | !--- ice volume --- |
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| 274 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0ow (:,:) , sxopw (:,:) , & |
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| 275 | sxxopw(:,:) , syopw (:,:) , & |
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| 276 | syyopw(:,:) , sxyopw(:,:) ) |
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| 277 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0ow (:,:) , sxopw (:,:) , & |
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| 278 | sxxopw(:,:) , syopw (:,:) , & |
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| 279 | syyopw(:,:) , sxyopw(:,:) ) |
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| 280 | DO jl = 1, jpl |
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| 281 | !--- ice volume --- |
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| 282 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0ice(:,:,jl) , sxice (:,:,jl) , & |
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| 283 | sxxice(:,:,jl) , syice (:,:,jl) , & |
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| 284 | syyice(:,:,jl) , sxyice(:,:,jl) ) |
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| 285 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0ice(:,:,jl) , sxice (:,:,jl) , & |
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| 286 | sxxice(:,:,jl) , syice (:,:,jl) , & |
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| 287 | syyice(:,:,jl) , sxyice(:,:,jl) ) |
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| 288 | !--- snow volume --- |
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| 289 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0sn (:,:,jl) , sxsn (:,:,jl) , & |
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| 290 | sxxsn (:,:,jl) , sysn (:,:,jl) , & |
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| 291 | syysn (:,:,jl) , sxysn (:,:,jl) ) |
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| 292 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0sn (:,:,jl) , sxsn (:,:,jl) , & |
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| 293 | sxxsn (:,:,jl) , sysn (:,:,jl) , & |
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| 294 | syysn (:,:,jl) , sxysn (:,:,jl) ) |
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| 295 | !--- ice salinity --- |
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| 296 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0sm (:,:,jl) , sxsal (:,:,jl) , & |
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| 297 | sxxsal(:,:,jl) , sysal (:,:,jl) , & |
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| 298 | syysal(:,:,jl) , sxysal(:,:,jl) ) |
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| 299 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0sm (:,:,jl) , sxsal (:,:,jl) , & |
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| 300 | sxxsal(:,:,jl) , sysal (:,:,jl) , & |
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| 301 | syysal(:,:,jl) , sxysal(:,:,jl) ) |
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| 302 | !--- ice age --- |
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| 303 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0oi (:,:,jl) , sxage (:,:,jl) , & |
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| 304 | sxxage(:,:,jl) , syage (:,:,jl) , & |
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| 305 | syyage(:,:,jl) , sxyage(:,:,jl) ) |
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| 306 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0oi (:,:,jl) , sxage (:,:,jl) , & |
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| 307 | sxxage(:,:,jl) , syage (:,:,jl) , & |
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| 308 | syyage(:,:,jl) , sxyage(:,:,jl) ) |
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| 309 | !--- ice concentration --- |
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| 310 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0a (:,:,jl) , sxa (:,:,jl) , & |
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| 311 | sxxa (:,:,jl) , sya (:,:,jl) , & |
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| 312 | syya (:,:,jl) , sxya (:,:,jl) ) |
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| 313 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0a (:,:,jl) , sxa (:,:,jl) , & |
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| 314 | sxxa (:,:,jl) , sya (:,:,jl) , & |
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| 315 | syya (:,:,jl) , sxya (:,:,jl) ) |
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| 316 | !--- ice / snow thermal energetic contents --- |
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| 317 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0c0 (:,:,jl) , sxc0 (:,:,jl) , & |
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| 318 | sxxc0 (:,:,jl) , syc0 (:,:,jl) , & |
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| 319 | syyc0 (:,:,jl) , sxyc0 (:,:,jl) ) |
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| 320 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0c0 (:,:,jl) , sxc0 (:,:,jl) , & |
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| 321 | sxxc0 (:,:,jl) , syc0 (:,:,jl) , & |
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| 322 | syyc0 (:,:,jl) , sxyc0 (:,:,jl) ) |
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| 323 | DO layer = 1, nlay_i |
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| 324 | CALL lim_adv_y( zusnit, zvi_v, rone , zsm, zs0e(:,:,layer,jl) , & |
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| 325 | sxe (:,:,layer,jl) , sxxe (:,:,layer,jl) , sye (:,:,layer,jl) , & |
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| 326 | syye (:,:,layer,jl), sxye (:,:,layer,jl) ) |
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| 327 | CALL lim_adv_x( zusnit, zui_u, rzero, zsm, zs0e(:,:,layer,jl) , & |
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| 328 | sxe (:,:,layer,jl) , sxxe (:,:,layer,jl) , sye (:,:,layer,jl) , & |
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| 329 | syye (:,:,layer,jl), sxye (:,:,layer,jl) ) |
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| 330 | END DO |
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| 331 | |
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| 332 | END DO |
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| 333 | END DO |
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| 334 | ENDIF |
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| 335 | |
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| 336 | !------------------------------------------- |
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| 337 | ! Recover the properties from their contents |
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| 338 | !------------------------------------------- |
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| 339 | |
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| 340 | zs0ow (:,:) = zs0ow(:,:) / area(:,:) |
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| 341 | DO jl = 1, jpl |
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| 342 | zs0ice(:,:,jl) = zs0ice(:,:,jl) / area(:,:) |
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| 343 | zs0sn (:,:,jl) = zs0sn (:,:,jl) / area(:,:) |
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| 344 | zs0sm (:,:,jl) = zs0sm (:,:,jl) / area(:,:) |
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| 345 | zs0oi (:,:,jl) = zs0oi (:,:,jl) / area(:,:) |
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| 346 | zs0a (:,:,jl) = zs0a (:,:,jl) / area(:,:) |
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| 347 | zs0c0 (:,:,jl) = zs0c0 (:,:,jl) / area(:,:) |
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| 348 | DO jk = 1, nlay_i |
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| 349 | zs0e(:,:,jk,jl) = zs0e(:,:,jk,jl) / area(:,:) |
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| 350 | END DO |
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| 351 | END DO |
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| 352 | |
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| 353 | !------------------------------------------------------------------------------! |
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| 354 | ! 4) Diffusion of Ice fields |
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| 355 | !------------------------------------------------------------------------------! |
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| 356 | |
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| 357 | !------------------------------------ |
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| 358 | ! 4.1) diffusion of open water area |
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| 359 | !------------------------------------ |
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| 360 | |
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| 361 | ! Compute total ice fraction |
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| 362 | zs0at(:,:) = 0.0 |
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| 363 | DO jl = 1, jpl |
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| 364 | DO jj = 1, jpj |
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| 365 | DO ji = 1, jpi |
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| 366 | zs0at (ji,jj) = zs0at(ji,jj) + zs0a(ji,jj,jl) ! |
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| 367 | END DO |
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| 368 | END DO |
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| 369 | END DO |
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| 370 | |
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| 371 | ! Masked eddy diffusivity coefficient at ocean U- and V-points |
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| 372 | DO jj = 1, jpjm1 ! NB: has not to be defined on jpj line and jpi row |
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| 373 | DO ji = 1 , fs_jpim1 ! vector opt. |
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| 374 | pahu(ji,jj) = ( 1.0 - MAX( rzero, SIGN( rone, -zs0at(ji ,jj) ) ) ) & |
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| 375 | & * ( 1.0 - MAX( rzero, SIGN( rone, -zs0at(ji+1,jj) ) ) ) * ahiu(ji,jj) |
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| 376 | pahv(ji,jj) = ( 1.0 - MAX( rzero, SIGN( rone, -zs0at(ji,jj ) ) ) ) & |
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| 377 | & * ( 1.0 - MAX( rzero, SIGN( rone,- zs0at(ji,jj+1) ) ) ) * ahiv(ji,jj) |
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| 378 | END DO !jj |
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| 379 | END DO ! ji |
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| 380 | |
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| 381 | ! Diffusion |
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| 382 | CALL lim_hdf( zs0ow (:,:) ) |
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| 383 | |
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| 384 | !---------------------------------------- |
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| 385 | ! 4.2) Diffusion of other ice variables |
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| 386 | !---------------------------------------- |
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| 387 | DO jl = 1, jpl |
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| 388 | |
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| 389 | ! Masked eddy diffusivity coefficient at ocean U- and V-points |
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| 390 | DO jj = 1, jpjm1 ! NB: has not to be defined on jpj line and jpi row |
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| 391 | DO ji = 1 , fs_jpim1 ! vector opt. |
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| 392 | pahu(ji,jj) = ( 1.0 - MAX( rzero, SIGN( rone, -zs0a(ji ,jj,jl) ) ) ) & |
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| 393 | & * ( 1.0 - MAX( rzero, SIGN( rone, -zs0a(ji+1,jj,jl) ) ) ) * ahiu(ji,jj) |
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| 394 | pahv(ji,jj) = ( 1.0 - MAX( rzero, SIGN( rone, -zs0a(ji,jj,jl ) ) ) ) & |
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| 395 | & * ( 1.0 - MAX( rzero, SIGN( rone,- zs0a(ji,jj+1,jl) ) ) ) * ahiv(ji,jj) |
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| 396 | END DO !jj |
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| 397 | END DO ! ji |
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| 398 | |
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| 399 | CALL lim_hdf( zs0ice (:,:,jl) ) |
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| 400 | CALL lim_hdf( zs0sn (:,:,jl) ) |
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| 401 | CALL lim_hdf( zs0sm (:,:,jl) ) |
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| 402 | CALL lim_hdf( zs0oi (:,:,jl) ) |
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| 403 | CALL lim_hdf( zs0a (:,:,jl) ) |
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| 404 | CALL lim_hdf( zs0c0 (:,:,jl) ) |
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| 405 | DO jk = 1, nlay_i |
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| 406 | CALL lim_hdf( zs0e (:,:,jk,jl) ) |
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| 407 | END DO ! jk |
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| 408 | END DO !jl |
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| 409 | |
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| 410 | !----------------------------------------- |
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| 411 | ! 4.3) Remultiply everything by ice area |
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| 412 | !----------------------------------------- |
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| 413 | zs0ow(:,:) = MAX(rzero, zs0ow(:,:) * area(:,:) ) |
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| 414 | DO jl = 1, jpl |
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| 415 | zs0ice(:,:,jl) = MAX( rzero, zs0ice(:,:,jl) * area(:,:) ) !!bug: est-ce utile |
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| 416 | zs0sn (:,:,jl) = MAX( rzero, zs0sn (:,:,jl) * area(:,:) ) !!bug: cf /area juste apres |
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| 417 | zs0sm (:,:,jl) = MAX( rzero, zs0sm (:,:,jl) * area(:,:) ) !!bug: cf /area juste apres |
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| 418 | zs0oi (:,:,jl) = MAX( rzero, zs0oi (:,:,jl) * area(:,:) ) |
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| 419 | zs0a (:,:,jl) = MAX( rzero, zs0a (:,:,jl) * area(:,:) ) !! suppress both change le resultat |
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| 420 | zs0c0 (:,:,jl) = MAX( rzero, zs0c0 (:,:,jl) * area(:,:) ) |
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| 421 | DO jk = 1, nlay_i |
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| 422 | zs0e(:,:,jk,jl) = MAX( rzero, zs0e (:,:,jk,jl) * area(:,:) ) |
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| 423 | END DO ! jk |
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| 424 | END DO ! jl |
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| 425 | |
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| 426 | !------------------------------------------------------------------------------! |
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| 427 | ! 5) Update and limit ice properties after transport |
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| 428 | !------------------------------------------------------------------------------! |
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| 429 | |
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| 430 | !-------------------------------------------------- |
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| 431 | ! 5.1) Recover mean values over the grid squares. |
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| 432 | !-------------------------------------------------- |
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| 433 | |
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| 434 | DO jl = 1, jpl |
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| 435 | DO jk = 1, nlay_i |
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| 436 | DO jj = 1, jpj |
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| 437 | DO ji = 1, jpi |
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| 438 | zs0e (ji,jj,jk,jl) = & |
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| 439 | MAX( rzero, zs0e (ji,jj,jk,jl) / area(ji,jj) ) |
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| 440 | END DO |
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| 441 | END DO |
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| 442 | END DO |
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| 443 | END DO |
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| 444 | |
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| 445 | DO jj = 1, jpj |
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| 446 | DO ji = 1, jpi |
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| 447 | zs0ow (ji,jj) = MAX( rzero, zs0ow (ji,jj) / area(ji,jj) ) |
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| 448 | END DO |
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| 449 | END DO |
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| 450 | |
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| 451 | zs0at(:,:) = 0.0 |
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| 452 | DO jl = 1, jpl |
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| 453 | DO jj = 1, jpj |
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| 454 | DO ji = 1, jpi |
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| 455 | zs0sn (ji,jj,jl) = MAX( rzero, zs0sn (ji,jj,jl)/area(ji,jj) ) |
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| 456 | zs0ice(ji,jj,jl) = MAX( rzero, zs0ice(ji,jj,jl)/area(ji,jj) ) |
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| 457 | zs0sm (ji,jj,jl) = MAX( rzero, zs0sm (ji,jj,jl)/area(ji,jj) ) |
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| 458 | zs0oi (ji,jj,jl) = MAX( rzero, zs0oi (ji,jj,jl)/area(ji,jj) ) |
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| 459 | zs0a (ji,jj,jl) = MAX( rzero, zs0a (ji,jj,jl)/area(ji,jj) ) |
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| 460 | zs0c0 (ji,jj,jl) = MAX( rzero, zs0c0 (ji,jj,jl)/area(ji,jj) ) |
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| 461 | zs0at (ji,jj) = zs0at(ji,jj) + zs0a(ji,jj,jl) |
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| 462 | END DO |
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| 463 | END DO |
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| 464 | END DO |
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| 465 | |
---|
| 466 | !--------------------------------------------------------- |
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| 467 | ! 5.2) Snow thickness, Ice thickness, Ice concentrations |
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| 468 | !--------------------------------------------------------- |
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| 469 | |
---|
| 470 | DO jj = 1, jpj |
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| 471 | DO ji = 1, jpi |
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| 472 | zindb = MAX( 0.0 , SIGN( 1.0, zs0at(ji,jj) - zeps10) ) |
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| 473 | zs0ow(ji,jj) = (1.0 - zindb) + zindb*MAX( zs0ow(ji,jj), 0.00 ) |
---|
| 474 | ato_i(ji,jj) = zs0ow(ji,jj) |
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| 475 | END DO |
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| 476 | END DO |
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| 477 | |
---|
| 478 | ! Remove very small areas |
---|
| 479 | DO jl = 1, jpl |
---|
| 480 | DO jj = 1, jpj |
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| 481 | DO ji = 1, jpi |
---|
| 482 | zindb = MAX( 0.0 , SIGN( 1.0, zs0a(ji,jj,jl) - zeps10) ) |
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| 483 | |
---|
| 484 | zs0a(ji,jj,jl) = zindb * MIN( zs0a(ji,jj,jl), 0.99 ) |
---|
| 485 | v_s(ji,jj,jl) = zindb * zs0sn (ji,jj,jl) |
---|
| 486 | v_i(ji,jj,jl) = zindb * zs0ice(ji,jj,jl) |
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| 487 | |
---|
| 488 | zindsn = MAX( rzero, SIGN( rone, v_s(ji,jj,jl) - zeps10 ) ) |
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| 489 | zindic = MAX( rzero, SIGN( rone, v_i(ji,jj,jl) - zeps10 ) ) |
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| 490 | zindb = MAX( zindsn, zindic ) |
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| 491 | zs0a (ji,jj,jl) = zindb * zs0a(ji,jj,jl) !ice concentration |
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| 492 | a_i (ji,jj,jl) = zs0a(ji,jj,jl) |
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| 493 | v_s (ji,jj,jl) = zindsn * v_s(ji,jj,jl) |
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| 494 | v_i (ji,jj,jl) = zindic * v_i(ji,jj,jl) |
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| 495 | END DO |
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| 496 | END DO |
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| 497 | END DO |
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| 498 | |
---|
| 499 | DO jj = 1, jpj |
---|
| 500 | DO ji = 1, jpi |
---|
| 501 | zs0at(ji,jj) = SUM( zs0a(ji,jj,1:jpl) ) |
---|
| 502 | END DO |
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| 503 | END DO |
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| 504 | |
---|
| 505 | !---------------------- |
---|
| 506 | ! 5.3) Ice properties |
---|
| 507 | !---------------------- |
---|
| 508 | |
---|
| 509 | zbigval = 1.0d+13 |
---|
| 510 | |
---|
| 511 | DO jl = 1, jpl |
---|
| 512 | DO jj = 1, jpj |
---|
| 513 | DO ji = 1, jpi |
---|
| 514 | |
---|
| 515 | ! Switches and dummy variables |
---|
| 516 | zusvosn = 1.0/MAX( v_s(ji,jj,jl) , epsi16 ) |
---|
| 517 | zusvoic = 1.0/MAX( v_i(ji,jj,jl) , epsi16 ) |
---|
| 518 | zrtt = 173.15 * rone |
---|
| 519 | zindsn = MAX( rzero, SIGN( rone, v_s(ji,jj,jl) - zeps10 ) ) |
---|
| 520 | zindic = MAX( rzero, SIGN( rone, v_i(ji,jj,jl) - zeps10 ) ) |
---|
| 521 | zindb = MAX( zindsn, zindic ) |
---|
| 522 | |
---|
| 523 | ! Ice salinity and age |
---|
| 524 | zsal = MAX( MIN( (rhoic-rhosn)/rhoic*sss_io(ji,jj) , & |
---|
| 525 | zusvoic * zs0sm(ji,jj,jl) ), s_i_min ) * & |
---|
| 526 | v_i(ji,jj,jl) |
---|
| 527 | IF ( ( num_sal .EQ. 2 ) .OR. ( num_sal .EQ. 4 ) ) & |
---|
| 528 | smv_i(ji,jj,jl) = zindic*zsal + (1.0-zindic)*0.0 |
---|
| 529 | |
---|
| 530 | zage = MAX( MIN( zbigval, zs0oi(ji,jj,jl) / & |
---|
| 531 | MAX( a_i(ji,jj,jl), epsi16 ) ), 0.0 ) * & |
---|
| 532 | a_i(ji,jj,jl) |
---|
| 533 | oa_i (ji,jj,jl) = zindic*zage |
---|
| 534 | |
---|
| 535 | ! Snow heat content |
---|
| 536 | ze = MIN( MAX( 0.0, zs0c0(ji,jj,jl)*area(ji,jj) ), zbigval ) |
---|
| 537 | e_s(ji,jj,1,jl) = zindsn * ze + (1.0 - zindsn) * 0.0 |
---|
| 538 | |
---|
| 539 | END DO !ji |
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| 540 | END DO !jj |
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| 541 | END DO ! jl |
---|
| 542 | |
---|
| 543 | DO jl = 1, jpl |
---|
| 544 | DO jk = 1, nlay_i |
---|
| 545 | DO jj = 1, jpj |
---|
| 546 | DO ji = 1, jpi |
---|
| 547 | ! Ice heat content |
---|
| 548 | zindic = MAX( rzero, SIGN( rone, v_i(ji,jj,jl) - zeps10 ) ) |
---|
| 549 | ze = MIN( MAX( 0.0, zs0e(ji,jj,jk,jl)*area(ji,jj) ), zbigval ) |
---|
| 550 | e_i(ji,jj,jk,jl) = zindic * ze + ( 1.0 - zindic ) * 0.0 |
---|
| 551 | END DO !ji |
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| 552 | END DO ! jj |
---|
| 553 | END DO ! jk |
---|
| 554 | END DO ! jl |
---|
| 555 | |
---|
| 556 | !-----------------------------------------------------------------------------! |
---|
| 557 | ! 6) Correct age |
---|
| 558 | !-----------------------------------------------------------------------------! |
---|
| 559 | |
---|
| 560 | ! DO jl = 1, jpl |
---|
| 561 | ! DO jj = 1, jpj |
---|
| 562 | ! DO ji = 1, jpi |
---|
| 563 | ! IF (old_a_i(ji,jj,jl).eq.0.00) THEN |
---|
| 564 | ! o_i(ji,jj,jl) = MAX( MIN( rdt_ice*float(numit)/86400.0, o_i(ji,jj,jl) ), 0.0 ) |
---|
| 565 | ! ENDIF |
---|
| 566 | ! END DO |
---|
| 567 | ! END DO |
---|
| 568 | ! END DO |
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| 569 | |
---|
| 570 | |
---|
| 571 | ENDIF |
---|
| 572 | |
---|
| 573 | END SUBROUTINE lim_trp |
---|
| 574 | |
---|
| 575 | |
---|
| 576 | SUBROUTINE lim_trp_init |
---|
| 577 | !!------------------------------------------------------------------- |
---|
| 578 | !! *** ROUTINE lim_trp_init *** |
---|
| 579 | !! |
---|
| 580 | !! ** Purpose : initialization of ice advection parameters |
---|
| 581 | !! |
---|
| 582 | !! ** Method : Read the namicetrp namelist and check the parameter |
---|
| 583 | !! values called at the first timestep (nit000) |
---|
| 584 | !! |
---|
| 585 | !! ** input : Namelist namicetrp |
---|
| 586 | !! |
---|
| 587 | !! history : |
---|
| 588 | !! 2.0 ! 03-08 (C. Ethe) Original code |
---|
| 589 | !!------------------------------------------------------------------- |
---|
| 590 | NAMELIST/namicetrp/ bound |
---|
| 591 | !!------------------------------------------------------------------- |
---|
| 592 | |
---|
| 593 | ! Read Namelist namicetrp |
---|
| 594 | REWIND ( numnam_ice ) |
---|
| 595 | READ ( numnam_ice , namicetrp ) |
---|
| 596 | IF(lwp) THEN |
---|
| 597 | WRITE(numout,*) |
---|
| 598 | WRITE(numout,*) 'lim_trp_init : Ice parameters for advection ' |
---|
| 599 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
| 600 | WRITE(numout,*) ' boundary conditions (0.0 no-slip, 1.0 free-slip) bound = ', bound |
---|
| 601 | WRITE(numout,*) |
---|
| 602 | ENDIF |
---|
| 603 | |
---|
| 604 | END SUBROUTINE lim_trp_init |
---|
| 605 | |
---|
| 606 | #else |
---|
| 607 | !!---------------------------------------------------------------------- |
---|
| 608 | !! Default option Empty Module No sea-ice model |
---|
| 609 | !!---------------------------------------------------------------------- |
---|
| 610 | CONTAINS |
---|
| 611 | SUBROUTINE lim_trp ! Empty routine |
---|
| 612 | END SUBROUTINE lim_trp |
---|
| 613 | #endif |
---|
| 614 | |
---|
| 615 | !!====================================================================== |
---|
| 616 | END MODULE limtrp |
---|