[3] | 1 | MODULE limrhg |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE limrhg *** |
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| 4 | !! Ice rheology : performs sea ice rheology |
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| 5 | !!====================================================================== |
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[700] | 6 | !! History : 0.0 ! 93-12 (M.A. Morales Maqueda.) Original code |
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| 7 | !! 1.0 ! 94-12 (H. Goosse) |
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| 8 | !! 2.0 ! 03-12 (C. Ethe, G. Madec) F90, mpp |
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| 9 | !! 3.0 ! 07-06 (S. Masson, G. Madec) ice/atmosphere stress |
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| 10 | !! provided at I-point in forced and coupled mode |
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| 11 | !!---------------------------------------------------------------------- |
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[77] | 12 | #if defined key_ice_lim |
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[3] | 13 | !!---------------------------------------------------------------------- |
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[77] | 14 | !! 'key_ice_lim' LIM sea-ice model |
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| 15 | !!---------------------------------------------------------------------- |
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[3] | 16 | !! lim_rhg : computes ice velocities |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | !! * Modules used |
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| 19 | USE phycst |
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[77] | 20 | USE par_oce |
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[3] | 21 | USE ice_oce ! ice variables |
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| 22 | USE dom_ice |
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| 23 | USE ice |
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| 24 | USE lbclnk |
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[77] | 25 | USE lib_mpp |
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[3] | 26 | USE in_out_manager ! I/O manager |
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[258] | 27 | USE prtctl ! Print control |
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[3] | 28 | |
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| 29 | IMPLICIT NONE |
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| 30 | PRIVATE |
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| 31 | |
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| 32 | !! * Routine accessibility |
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| 33 | PUBLIC lim_rhg ! routine called by lim_dyn |
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| 34 | |
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| 35 | !! * Module variables |
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[106] | 36 | REAL(wp) :: & ! constant values |
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[77] | 37 | rzero = 0.e0 , & |
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| 38 | rone = 1.e0 |
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[3] | 39 | !!---------------------------------------------------------------------- |
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[247] | 40 | !! LIM 2.0, UCL-LOCEAN-IPSL (2005) |
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[701] | 41 | !! $Id$ |
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[247] | 42 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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[3] | 43 | !!---------------------------------------------------------------------- |
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| 44 | |
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| 45 | CONTAINS |
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| 46 | |
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[77] | 47 | SUBROUTINE lim_rhg( k_j1, k_jpj ) |
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[3] | 48 | !!------------------------------------------------------------------- |
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[12] | 49 | !! *** SUBROUTINR lim_rhg *** |
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[77] | 50 | !! |
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[12] | 51 | !! ** purpose : determines the velocity field of sea ice by using |
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| 52 | !! atmospheric (wind stress) and oceanic (water stress and surface |
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| 53 | !! tilt) forcings. Ice-ice interaction is described by a non-linear |
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[391] | 54 | !! viscous-plastic law including shear strength and a bulk rheology. |
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[3] | 55 | !! |
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| 56 | !! ** Action : - compute u_ice, v_ice the sea-ice velocity |
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| 57 | !! |
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| 58 | !!------------------------------------------------------------------- |
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[77] | 59 | INTEGER, INTENT(in) :: k_j1 , & ! southern j-index for ice computation |
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| 60 | & k_jpj ! northern j-index for ice computation |
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[3] | 61 | |
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[12] | 62 | INTEGER :: ji, jj ! dummy loop indices |
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[3] | 63 | |
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[12] | 64 | INTEGER :: & |
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| 65 | iim1, ijm1, iip1 , ijp1 , & ! temporary integers |
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| 66 | iter, jter ! " " |
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| 67 | |
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[258] | 68 | CHARACTER (len=50) :: charout |
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| 69 | |
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[12] | 70 | REAL(wp) :: & |
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| 71 | ze11 , ze12 , ze22 , ze21 , & ! temporary scalars |
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| 72 | zt11 , zt12 , zt21 , zt22 , & ! " " |
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| 73 | zvis11, zvis21, zvis12, zvis22, & ! " " |
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| 74 | zgphsx, ztagnx, zusw , & ! " " |
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| 75 | zgphsy, ztagny ! " " |
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| 76 | REAL(wp) :: & |
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| 77 | zresm, zunw, zvnw, zur, zvr, zmod, za, zac, & |
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| 78 | zmpzas, zstms, zindu, zindu1, zusdtp, zmassdt, zcorlal, & |
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[700] | 79 | ztrace2, zdeter, zdelta, zsang, zmask, zdgp, zdgi, zdiag, zic |
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[3] | 80 | REAL(wp),DIMENSION(jpi,jpj) :: & |
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| 81 | zpresh, zfrld, zmass, zcorl, & |
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| 82 | zu0, zv0, zviszeta, zviseta, & |
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| 83 | zc1u, zc1v, zc2u, zc2v, za1ct, za2ct, za1, za2, zb1, zb2, & |
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| 84 | zc1, zc2, zd1, zd2, zden, zu_ice, zv_ice, zresr |
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| 85 | REAL(wp),DIMENSION(jpi,jpj,2,2) :: & |
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[77] | 86 | zs11, zs12, zs22, zs21 |
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[3] | 87 | !!------------------------------------------------------------------- |
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| 88 | |
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[77] | 89 | ! Store initial velocities |
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| 90 | ! ------------------------ |
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[12] | 91 | zu0(:,:) = u_ice(:,:) |
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| 92 | zv0(:,:) = v_ice(:,:) |
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[3] | 93 | |
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[700] | 94 | ! masked Ice mass, ice strength, Ice-cover fraction and Lead faction at T-point |
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[77] | 95 | !------------------------------------------------------------------- |
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[3] | 96 | |
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[77] | 97 | DO jj = k_j1 , k_jpj-1 |
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[3] | 98 | DO ji = 1 , jpi |
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| 99 | za1(ji,jj) = tms(ji,jj) * ( rhosn * hsnm(ji,jj) + rhoic * hicm(ji,jj) ) |
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| 100 | zpresh(ji,jj) = tms(ji,jj) * pstarh * hicm(ji,jj) * EXP( -c_rhg * frld(ji,jj) ) |
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[700] | 101 | |
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| 102 | zb1(ji,jj) = tms(ji,jj) * ( 1.0 - frld(ji,jj) ) |
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| 103 | zb2(ji,jj) = tms(ji,jj) * frld(ji,jj) |
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[3] | 104 | END DO |
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| 105 | END DO |
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| 106 | |
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[700] | 107 | ! Wind stress, coriolis, mass and Gradient of ice strenght at I-point |
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[3] | 108 | !--------------------------------------------------------------------------- |
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| 109 | |
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[77] | 110 | DO jj = k_j1+1, k_jpj-1 |
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[3] | 111 | DO ji = 2, jpi |
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| 112 | zstms = tms(ji,jj ) * wght(ji,jj,2,2) + tms(ji-1,jj ) * wght(ji,jj,1,2) & |
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| 113 | & + tms(ji,jj-1) * wght(ji,jj,2,1) + tms(ji-1,jj-1) * wght(ji,jj,1,1) |
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| 114 | zusw = 1.0 / MAX( zstms, epsd ) |
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| 115 | |
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[700] | 116 | ! Leads area at I-point |
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| 117 | zfrld(ji,jj) = ( zb2(ji,jj ) * wght(ji,jj,2,2) + zb2(ji-1,jj ) * wght(ji,jj,1,2) & |
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| 118 | & + zb2(ji,jj-1) * wght(ji,jj,2,1) + zb2(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw |
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[3] | 119 | |
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[700] | 120 | ! Ice cover area at I-point |
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| 121 | zic = ( zb1(ji,jj ) * wght(ji,jj,2,2) + zb1(ji-1,jj ) * wght(ji,jj,1,2) & |
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| 122 | & + zb1(ji,jj-1) * wght(ji,jj,2,1) + zb1(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw |
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[3] | 123 | |
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[700] | 124 | ! Wind stress. |
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| 125 | ztagnx = zic * gtaux(ji,jj) |
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| 126 | ztagny = zic * gtauy(ji,jj) |
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| 127 | |
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[3] | 128 | ! Mass and coriolis coeff. |
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| 129 | zmass(ji,jj) = ( za1(ji,jj ) * wght(ji,jj,2,2) + za1(ji-1,jj ) * wght(ji,jj,1,2) & |
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| 130 | & + za1(ji,jj-1) * wght(ji,jj,2,1) + za1(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw |
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| 131 | zcorl(ji,jj) = zmass(ji,jj) * fcor(ji,jj) |
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| 132 | |
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| 133 | ! Gradient of ice strength |
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| 134 | zgphsx = ( alambd(ji,jj,2,2,2,1) - alambd(ji,jj,2,1,2,1) ) * zpresh(ji ,jj-1) & |
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| 135 | & + ( alambd(ji,jj,2,2,2,2) - alambd(ji,jj,2,1,2,2) ) * zpresh(ji ,jj ) & |
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| 136 | & - ( alambd(ji,jj,2,2,1,1) + alambd(ji,jj,2,1,1,1) ) * zpresh(ji-1,jj-1) & |
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| 137 | & - ( alambd(ji,jj,2,2,1,2) + alambd(ji,jj,2,1,1,2) ) * zpresh(ji-1,jj ) |
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| 138 | |
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| 139 | zgphsy = - ( alambd(ji,jj,1,1,2,1) + alambd(ji,jj,1,2,2,1) ) * zpresh(ji ,jj-1) & |
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| 140 | & - ( alambd(ji,jj,1,1,1,1) + alambd(ji,jj,1,2,1,1) ) * zpresh(ji-1,jj-1) & |
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| 141 | & + ( alambd(ji,jj,1,1,2,2) - alambd(ji,jj,1,2,2,2) ) * zpresh(ji ,jj ) & |
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| 142 | & + ( alambd(ji,jj,1,1,1,2) - alambd(ji,jj,1,2,1,2) ) * zpresh(ji-1,jj ) |
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| 143 | |
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| 144 | ! Computation of the velocity field taking into account the ice-ice interaction. |
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| 145 | ! Terms that are independent of the velocity field. |
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[700] | 146 | za1ct(ji,jj) = ztagnx - zcorl(ji,jj) * v_io(ji,jj) - zgphsx |
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| 147 | za2ct(ji,jj) = ztagny + zcorl(ji,jj) * u_io(ji,jj) - zgphsy |
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[3] | 148 | END DO |
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| 149 | END DO |
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| 150 | |
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| 151 | !! inutile!! |
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| 152 | !!?? CALL lbc_lnk( za1ct, 'I', -1. ) |
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| 153 | !!?? CALL lbc_lnk( za2ct, 'I', -1. ) |
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| 154 | |
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| 155 | |
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| 156 | ! SOLUTION OF THE MOMENTUM EQUATION. |
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| 157 | !------------------------------------------ |
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| 158 | ! ! ==================== ! |
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| 159 | DO iter = 1 , 2 * nbiter ! loop over iter ! |
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| 160 | ! ! ==================== ! |
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| 161 | zindu = MOD( iter , 2 ) |
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| 162 | zusdtp = ( zindu * 2.0 + ( 1.0 - zindu ) * 1.0 ) * REAL( nbiter ) / rdt_ice |
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| 163 | |
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| 164 | ! Computation of free drift field for free slip boundary conditions. |
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| 165 | |
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[77] | 166 | DO jj = k_j1, k_jpj-1 |
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[3] | 167 | DO ji = 1, jpim1 |
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| 168 | !- Rate of strain tensor. |
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| 169 | zt11 = akappa(ji,jj,1,1) * ( u_ice(ji+1,jj) + u_ice(ji+1,jj+1) - u_ice(ji,jj ) - u_ice(ji ,jj+1) ) & |
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| 170 | & + akappa(ji,jj,1,2) * ( v_ice(ji+1,jj) + v_ice(ji+1,jj+1) + v_ice(ji,jj ) + v_ice(ji ,jj+1) ) |
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| 171 | zt12 = - akappa(ji,jj,2,2) * ( u_ice(ji ,jj) + u_ice(ji+1,jj ) - u_ice(ji,jj+1) - u_ice(ji+1,jj+1) ) & |
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| 172 | & - akappa(ji,jj,2,1) * ( v_ice(ji ,jj) + v_ice(ji+1,jj ) + v_ice(ji,jj+1) + v_ice(ji+1,jj+1) ) |
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| 173 | zt22 = - akappa(ji,jj,2,2) * ( v_ice(ji ,jj) + v_ice(ji+1,jj ) - v_ice(ji,jj+1) - v_ice(ji+1,jj+1) ) & |
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| 174 | & + akappa(ji,jj,2,1) * ( u_ice(ji ,jj) + u_ice(ji+1,jj ) + u_ice(ji,jj+1) + u_ice(ji+1,jj+1) ) |
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| 175 | zt21 = akappa(ji,jj,1,1) * ( v_ice(ji+1,jj) + v_ice(ji+1,jj+1) - v_ice(ji,jj ) - v_ice(ji ,jj+1) ) & |
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| 176 | & - akappa(ji,jj,1,2) * ( u_ice(ji+1,jj) + u_ice(ji+1,jj+1) + u_ice(ji,jj ) + u_ice(ji ,jj+1) ) |
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| 177 | |
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| 178 | !- Rate of strain tensor. |
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| 179 | zdgp = zt11 + zt22 |
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| 180 | zdgi = zt12 + zt21 |
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| 181 | ztrace2 = zdgp * zdgp |
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| 182 | zdeter = zt11 * zt22 - 0.25 * zdgi * zdgi |
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| 183 | |
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| 184 | ! Creep limit depends on the size of the grid. |
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| 185 | zdelta = MAX( SQRT( ztrace2 + ( ztrace2 - 4.0 * zdeter ) * usecc2), creepl) |
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| 186 | |
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| 187 | !- Computation of viscosities. |
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| 188 | zviszeta(ji,jj) = MAX( zpresh(ji,jj) / zdelta, etamn ) |
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| 189 | zviseta (ji,jj) = zviszeta(ji,jj) * usecc2 |
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| 190 | END DO |
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| 191 | END DO |
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| 192 | !!?? CALL lbc_lnk( zviszeta, 'I', -1. ) ! or T point??? semble reellement inutile |
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| 193 | !!?? CALL lbc_lnk( zviseta , 'I', -1. ) |
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| 194 | |
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| 195 | |
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| 196 | !- Determination of zc1u, zc2u, zc1v and zc2v. |
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[77] | 197 | DO jj = k_j1+1, k_jpj-1 |
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[3] | 198 | DO ji = 2, jpim1 |
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| 199 | ze11 = akappa(ji-1,jj-1,1,1) |
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| 200 | ze12 = +akappa(ji-1,jj-1,2,2) |
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| 201 | ze22 = akappa(ji-1,jj-1,2,1) |
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| 202 | ze21 = -akappa(ji-1,jj-1,1,2) |
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| 203 | zvis11 = 2.0 * zviseta (ji-1,jj-1) + dm |
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| 204 | zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1) |
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| 205 | zvis12 = zviseta (ji-1,jj-1) + dm |
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| 206 | zvis21 = zviseta (ji-1,jj-1) |
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| 207 | |
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| 208 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 209 | zs11(ji,jj,1,1) = zvis11 * ze11 + zdiag |
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| 210 | zs12(ji,jj,1,1) = zvis12 * ze12 + zvis21 * ze21 |
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| 211 | zs22(ji,jj,1,1) = zvis11 * ze22 + zdiag |
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| 212 | zs21(ji,jj,1,1) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 213 | |
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| 214 | ze11 = -akappa(ji,jj-1,1,1) |
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| 215 | ze12 = +akappa(ji,jj-1,2,2) |
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| 216 | ze22 = akappa(ji,jj-1,2,1) |
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| 217 | ze21 = -akappa(ji,jj-1,1,2) |
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| 218 | zvis11 = 2.0 * zviseta (ji,jj-1) + dm |
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| 219 | zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1) |
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| 220 | zvis12 = zviseta (ji,jj-1) + dm |
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| 221 | zvis21 = zviseta (ji,jj-1) |
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| 222 | |
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| 223 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 224 | zs11(ji,jj,2,1) = zvis11 * ze11 + zdiag |
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| 225 | zs12(ji,jj,2,1) = zvis12 * ze12 + zvis21 * ze21 |
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| 226 | zs22(ji,jj,2,1) = zvis11 * ze22 + zdiag |
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| 227 | zs21(ji,jj,2,1) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 228 | |
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| 229 | ze11 = akappa(ji-1,jj,1,1) |
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| 230 | ze12 = -akappa(ji-1,jj,2,2) |
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| 231 | ze22 = akappa(ji-1,jj,2,1) |
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| 232 | ze21 = -akappa(ji-1,jj,1,2) |
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| 233 | zvis11 = 2.0 * zviseta (ji-1,jj) + dm |
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| 234 | zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj) |
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| 235 | zvis12 = zviseta (ji-1,jj) + dm |
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| 236 | zvis21 = zviseta (ji-1,jj) |
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| 237 | |
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| 238 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 239 | zs11(ji,jj,1,2) = zvis11 * ze11 + zdiag |
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| 240 | zs12(ji,jj,1,2) = zvis12 * ze12 + zvis21 * ze21 |
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| 241 | zs22(ji,jj,1,2) = zvis11 * ze22 + zdiag |
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| 242 | zs21(ji,jj,1,2) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 243 | |
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| 244 | ze11 = -akappa(ji,jj,1,1) |
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| 245 | ze12 = -akappa(ji,jj,2,2) |
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| 246 | ze22 = akappa(ji,jj,2,1) |
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| 247 | ze21 = -akappa(ji,jj,1,2) |
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| 248 | zvis11 = 2.0 * zviseta (ji,jj) + dm |
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| 249 | zvis22 = zviszeta(ji,jj) - zviseta(ji,jj) |
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| 250 | zvis12 = zviseta (ji,jj) + dm |
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| 251 | zvis21 = zviseta (ji,jj) |
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| 252 | |
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| 253 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 254 | zs11(ji,jj,2,2) = zvis11 * ze11 + zdiag |
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| 255 | zs12(ji,jj,2,2) = zvis12 * ze12 + zvis21 * ze21 |
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| 256 | zs22(ji,jj,2,2) = zvis11 * ze22 + zdiag |
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| 257 | zs21(ji,jj,2,2) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 258 | END DO |
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| 259 | END DO |
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| 260 | |
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[77] | 261 | DO jj = k_j1+1, k_jpj-1 |
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[3] | 262 | DO ji = 2, jpim1 |
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[77] | 263 | zc1u(ji,jj) = & |
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| 264 | + alambd(ji,jj,2,2,2,1) * zs11(ji,jj,2,1) + alambd(ji,jj,2,2,2,2) * zs11(ji,jj,2,2) & |
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| 265 | - alambd(ji,jj,2,2,1,1) * zs11(ji,jj,1,1) - alambd(ji,jj,2,2,1,2) * zs11(ji,jj,1,2) & |
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| 266 | - alambd(ji,jj,1,1,2,1) * zs12(ji,jj,2,1) - alambd(ji,jj,1,1,1,1) * zs12(ji,jj,1,1) & |
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| 267 | + alambd(ji,jj,1,1,2,2) * zs12(ji,jj,2,2) + alambd(ji,jj,1,1,1,2) * zs12(ji,jj,1,2) & |
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| 268 | + alambd(ji,jj,1,2,1,1) * zs21(ji,jj,1,1) + alambd(ji,jj,1,2,2,1) * zs21(ji,jj,2,1) & |
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| 269 | + alambd(ji,jj,1,2,1,2) * zs21(ji,jj,1,2) + alambd(ji,jj,1,2,2,2) * zs21(ji,jj,2,2) & |
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| 270 | - alambd(ji,jj,2,1,1,1) * zs22(ji,jj,1,1) - alambd(ji,jj,2,1,2,1) * zs22(ji,jj,2,1) & |
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| 271 | - alambd(ji,jj,2,1,1,2) * zs22(ji,jj,1,2) - alambd(ji,jj,2,1,2,2) * zs22(ji,jj,2,2) |
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[3] | 272 | |
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[77] | 273 | zc2u(ji,jj) = & |
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| 274 | + alambd(ji,jj,2,2,2,1) * zs21(ji,jj,2,1) + alambd(ji,jj,2,2,2,2) * zs21(ji,jj,2,2) & |
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| 275 | - alambd(ji,jj,2,2,1,1) * zs21(ji,jj,1,1) - alambd(ji,jj,2,2,1,2) * zs21(ji,jj,1,2) & |
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| 276 | - alambd(ji,jj,1,1,2,1) * zs22(ji,jj,2,1) - alambd(ji,jj,1,1,1,1) * zs22(ji,jj,1,1) & |
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| 277 | + alambd(ji,jj,1,1,2,2) * zs22(ji,jj,2,2) + alambd(ji,jj,1,1,1,2) * zs22(ji,jj,1,2) & |
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| 278 | - alambd(ji,jj,1,2,1,1) * zs11(ji,jj,1,1) - alambd(ji,jj,1,2,2,1) * zs11(ji,jj,2,1) & |
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| 279 | - alambd(ji,jj,1,2,1,2) * zs11(ji,jj,1,2) - alambd(ji,jj,1,2,2,2) * zs11(ji,jj,2,2) & |
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| 280 | + alambd(ji,jj,2,1,1,1) * zs12(ji,jj,1,1) + alambd(ji,jj,2,1,2,1) * zs12(ji,jj,2,1) & |
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| 281 | + alambd(ji,jj,2,1,1,2) * zs12(ji,jj,1,2) + alambd(ji,jj,2,1,2,2) * zs12(ji,jj,2,2) |
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[3] | 282 | END DO |
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| 283 | END DO |
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| 284 | |
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[77] | 285 | DO jj = k_j1+1, k_jpj-1 |
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[3] | 286 | DO ji = 2, jpim1 |
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| 287 | ! zc1v , zc2v. |
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| 288 | ze11 = akappa(ji-1,jj-1,1,2) |
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| 289 | ze12 = -akappa(ji-1,jj-1,2,1) |
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| 290 | ze22 = +akappa(ji-1,jj-1,2,2) |
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| 291 | ze21 = akappa(ji-1,jj-1,1,1) |
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| 292 | zvis11 = 2.0 * zviseta (ji-1,jj-1) + dm |
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| 293 | zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1) |
---|
| 294 | zvis12 = zviseta (ji-1,jj-1) + dm |
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| 295 | zvis21 = zviseta (ji-1,jj-1) |
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| 296 | |
---|
| 297 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 298 | zs11(ji,jj,1,1) = zvis11 * ze11 + zdiag |
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| 299 | zs12(ji,jj,1,1) = zvis12 * ze12 + zvis21 * ze21 |
---|
| 300 | zs22(ji,jj,1,1) = zvis11 * ze22 + zdiag |
---|
| 301 | zs21(ji,jj,1,1) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 302 | |
---|
| 303 | ze11 = akappa(ji,jj-1,1,2) |
---|
| 304 | ze12 = -akappa(ji,jj-1,2,1) |
---|
| 305 | ze22 = +akappa(ji,jj-1,2,2) |
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| 306 | ze21 = -akappa(ji,jj-1,1,1) |
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| 307 | zvis11 = 2.0 * zviseta (ji,jj-1) + dm |
---|
| 308 | zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1) |
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| 309 | zvis12 = zviseta (ji,jj-1) + dm |
---|
| 310 | zvis21 = zviseta (ji,jj-1) |
---|
| 311 | |
---|
| 312 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 313 | zs11(ji,jj,2,1) = zvis11 * ze11 + zdiag |
---|
| 314 | zs12(ji,jj,2,1) = zvis12 * ze12 + zvis21 * ze21 |
---|
| 315 | zs22(ji,jj,2,1) = zvis11 * ze22 + zdiag |
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| 316 | zs21(ji,jj,2,1) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 317 | |
---|
| 318 | ze11 = akappa(ji-1,jj,1,2) |
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| 319 | ze12 = -akappa(ji-1,jj,2,1) |
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| 320 | ze22 = -akappa(ji-1,jj,2,2) |
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| 321 | ze21 = akappa(ji-1,jj,1,1) |
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| 322 | zvis11 = 2.0 * zviseta (ji-1,jj) + dm |
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| 323 | zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj) |
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| 324 | zvis12 = zviseta (ji-1,jj) + dm |
---|
| 325 | zvis21 = zviseta (ji-1,jj) |
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| 326 | |
---|
| 327 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 328 | zs11(ji,jj,1,2) = zvis11 * ze11 + zdiag |
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| 329 | zs12(ji,jj,1,2) = zvis12 * ze12 + zvis21 * ze21 |
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| 330 | zs22(ji,jj,1,2) = zvis11 * ze22 + zdiag |
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| 331 | zs21(ji,jj,1,2) = zvis12 * ze21 + zvis21 * ze12 |
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[3] | 332 | |
---|
| 333 | ze11 = akappa(ji,jj,1,2) |
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| 334 | ze12 = -akappa(ji,jj,2,1) |
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| 335 | ze22 = -akappa(ji,jj,2,2) |
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| 336 | ze21 = -akappa(ji,jj,1,1) |
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| 337 | zvis11 = 2.0 * zviseta (ji,jj) + dm |
---|
| 338 | zvis22 = zviszeta(ji,jj) - zviseta(ji,jj) |
---|
| 339 | zvis12 = zviseta (ji,jj) + dm |
---|
| 340 | zvis21 = zviseta (ji,jj) |
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| 341 | |
---|
| 342 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 343 | zs11(ji,jj,2,2) = zvis11 * ze11 + zdiag |
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| 344 | zs12(ji,jj,2,2) = zvis12 * ze12 + zvis21 * ze21 |
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| 345 | zs22(ji,jj,2,2) = zvis11 * ze22 + zdiag |
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| 346 | zs21(ji,jj,2,2) = zvis12 * ze21 + zvis21 * ze12 |
---|
[3] | 347 | |
---|
| 348 | END DO |
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| 349 | END DO |
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| 350 | |
---|
[77] | 351 | DO jj = k_j1+1, k_jpj-1 |
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[3] | 352 | DO ji = 2, jpim1 |
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[77] | 353 | zc1v(ji,jj) = & |
---|
| 354 | + alambd(ji,jj,2,2,2,1) * zs11(ji,jj,2,1) + alambd(ji,jj,2,2,2,2) * zs11(ji,jj,2,2) & |
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| 355 | - alambd(ji,jj,2,2,1,1) * zs11(ji,jj,1,1) - alambd(ji,jj,2,2,1,2) * zs11(ji,jj,1,2) & |
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| 356 | - alambd(ji,jj,1,1,2,1) * zs12(ji,jj,2,1) - alambd(ji,jj,1,1,1,1) * zs12(ji,jj,1,1) & |
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| 357 | + alambd(ji,jj,1,1,2,2) * zs12(ji,jj,2,2) + alambd(ji,jj,1,1,1,2) * zs12(ji,jj,1,2) & |
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| 358 | + alambd(ji,jj,1,2,1,1) * zs21(ji,jj,1,1) + alambd(ji,jj,1,2,2,1) * zs21(ji,jj,2,1) & |
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| 359 | + alambd(ji,jj,1,2,1,2) * zs21(ji,jj,1,2) + alambd(ji,jj,1,2,2,2) * zs21(ji,jj,2,2) & |
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| 360 | - alambd(ji,jj,2,1,1,1) * zs22(ji,jj,1,1) - alambd(ji,jj,2,1,2,1) * zs22(ji,jj,2,1) & |
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| 361 | - alambd(ji,jj,2,1,1,2) * zs22(ji,jj,1,2) - alambd(ji,jj,2,1,2,2) * zs22(ji,jj,2,2) |
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| 362 | zc2v(ji,jj) = & |
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| 363 | + alambd(ji,jj,2,2,2,1) * zs21(ji,jj,2,1) + alambd(ji,jj,2,2,2,2) * zs21(ji,jj,2,2) & |
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| 364 | - alambd(ji,jj,2,2,1,1) * zs21(ji,jj,1,1) - alambd(ji,jj,2,2,1,2) * zs21(ji,jj,1,2) & |
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| 365 | - alambd(ji,jj,1,1,2,1) * zs22(ji,jj,2,1) - alambd(ji,jj,1,1,1,1) * zs22(ji,jj,1,1) & |
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| 366 | + alambd(ji,jj,1,1,2,2) * zs22(ji,jj,2,2) + alambd(ji,jj,1,1,1,2) * zs22(ji,jj,1,2) & |
---|
| 367 | - alambd(ji,jj,1,2,1,1) * zs11(ji,jj,1,1) - alambd(ji,jj,1,2,2,1) * zs11(ji,jj,2,1) & |
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| 368 | - alambd(ji,jj,1,2,1,2) * zs11(ji,jj,1,2) - alambd(ji,jj,1,2,2,2) * zs11(ji,jj,2,2) & |
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| 369 | + alambd(ji,jj,2,1,1,1) * zs12(ji,jj,1,1) + alambd(ji,jj,2,1,2,1) * zs12(ji,jj,2,1) & |
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| 370 | + alambd(ji,jj,2,1,1,2) * zs12(ji,jj,1,2) + alambd(ji,jj,2,1,2,2) * zs12(ji,jj,2,2) |
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[3] | 371 | END DO |
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| 372 | END DO |
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| 373 | |
---|
| 374 | ! Relaxation. |
---|
| 375 | |
---|
| 376 | iflag: DO jter = 1 , nbitdr |
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| 377 | |
---|
| 378 | ! Store previous drift field. |
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[77] | 379 | DO jj = k_j1, k_jpj-1 |
---|
[3] | 380 | zu_ice(:,jj) = u_ice(:,jj) |
---|
| 381 | zv_ice(:,jj) = v_ice(:,jj) |
---|
| 382 | END DO |
---|
| 383 | |
---|
[77] | 384 | DO jj = k_j1+1, k_jpj-1 |
---|
| 385 | zsang = SIGN( 1.e0, fcor(1,jj) ) * sangvg ! only the sinus changes its sign with the hemisphere |
---|
| 386 | DO ji = 2, jpim1 |
---|
[700] | 387 | zur = u_ice(ji,jj) - u_io(ji,jj) |
---|
| 388 | zvr = v_ice(ji,jj) - v_io(ji,jj) |
---|
[77] | 389 | zmod = SQRT( zur * zur + zvr * zvr) * ( 1.0 - zfrld(ji,jj) ) |
---|
| 390 | za = rhoco * zmod |
---|
| 391 | zac = za * cangvg |
---|
[3] | 392 | zmpzas = alpha * zcorl(ji,jj) + za * zsang |
---|
| 393 | zmassdt = zusdtp * zmass(ji,jj) |
---|
| 394 | zcorlal = ( 1.0 - alpha ) * zcorl(ji,jj) |
---|
| 395 | |
---|
| 396 | za1(ji,jj) = zmassdt * zu0(ji,jj) + zcorlal * zv0(ji,jj) + za1ct(ji,jj) & |
---|
[700] | 397 | & + za * ( cangvg * u_io(ji,jj) - zsang * v_io(ji,jj) ) |
---|
[3] | 398 | |
---|
| 399 | za2(ji,jj) = zmassdt * zv0(ji,jj) - zcorlal * zu0(ji,jj) + za2ct(ji,jj) & |
---|
[700] | 400 | & + za * ( cangvg * v_io(ji,jj) + zsang * u_io(ji,jj) ) |
---|
[3] | 401 | |
---|
| 402 | zb1(ji,jj) = zmassdt + zac - zc1u(ji,jj) |
---|
| 403 | zb2(ji,jj) = zmpzas - zc2u(ji,jj) |
---|
| 404 | zc1(ji,jj) = zmpzas + zc1v(ji,jj) |
---|
| 405 | zc2(ji,jj) = zmassdt + zac - zc2v(ji,jj) |
---|
| 406 | zdeter = zc1(ji,jj) * zb2(ji,jj) + zc2(ji,jj) * zb1(ji,jj) |
---|
| 407 | zden(ji,jj) = SIGN( rone, zdeter) / MAX( epsd , ABS( zdeter ) ) |
---|
| 408 | END DO |
---|
| 409 | END DO |
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| 410 | |
---|
| 411 | ! The computation of ice interaction term is splitted into two parts |
---|
| 412 | !------------------------------------------------------------------------- |
---|
| 413 | |
---|
| 414 | ! Terms that do not involve already up-dated velocities. |
---|
| 415 | |
---|
[77] | 416 | DO jj = k_j1+1, k_jpj-1 |
---|
[3] | 417 | DO ji = 2, jpim1 |
---|
| 418 | iim1 = ji |
---|
| 419 | ijm1 = jj - 1 |
---|
| 420 | iip1 = ji + 1 |
---|
| 421 | ijp1 = jj |
---|
| 422 | ze11 = akappa(iim1,ijm1,1,1) * u_ice(iip1,ijp1) + akappa(iim1,ijm1,1,2) * v_ice(iip1,ijp1) |
---|
| 423 | ze12 = + akappa(iim1,ijm1,2,2) * u_ice(iip1,ijp1) - akappa(iim1,ijm1,2,1) * v_ice(iip1,ijp1) |
---|
| 424 | ze22 = + akappa(iim1,ijm1,2,2) * v_ice(iip1,ijp1) + akappa(iim1,ijm1,2,1) * u_ice(iip1,ijp1) |
---|
| 425 | ze21 = akappa(iim1,ijm1,1,1) * v_ice(iip1,ijp1) - akappa(iim1,ijm1,1,2) * u_ice(iip1,ijp1) |
---|
| 426 | zvis11 = 2.0 * zviseta (iim1,ijm1) + dm |
---|
| 427 | zvis22 = zviszeta(iim1,ijm1) - zviseta(iim1,ijm1) |
---|
| 428 | zvis12 = zviseta (iim1,ijm1) + dm |
---|
| 429 | zvis21 = zviseta (iim1,ijm1) |
---|
| 430 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
[77] | 431 | zs11(ji,jj,2,1) = zvis11 * ze11 + zdiag |
---|
| 432 | zs12(ji,jj,2,1) = zvis12 * ze12 + zvis21 * ze21 |
---|
| 433 | zs22(ji,jj,2,1) = zvis11 * ze22 + zdiag |
---|
| 434 | zs21(ji,jj,2,1) = zvis12 * ze21 + zvis21 * ze12 |
---|
[3] | 435 | |
---|
| 436 | |
---|
| 437 | iim1 = ji - 1 |
---|
| 438 | ijm1 = jj |
---|
| 439 | iip1 = ji |
---|
| 440 | ijp1 = jj + 1 |
---|
| 441 | ze11 = akappa(iim1,ijm1,1,1) * ( u_ice(iip1,ijp1) - u_ice(iim1,ijp1) ) & |
---|
| 442 | & + akappa(iim1,ijm1,1,2) * ( v_ice(iip1,ijp1) + v_ice(iim1,ijp1) ) |
---|
| 443 | ze12 = + akappa(iim1,ijm1,2,2) * ( u_ice(iim1,ijp1) + u_ice(iip1,ijp1) ) & |
---|
| 444 | & - akappa(iim1,ijm1,2,1) * ( v_ice(iim1,ijp1) + v_ice(iip1,ijp1) ) |
---|
| 445 | ze22 = + akappa(iim1,ijm1,2,2) * ( v_ice(iim1,ijp1) + v_ice(iip1,ijp1) ) & |
---|
| 446 | & + akappa(iim1,ijm1,2,1) * ( u_ice(iim1,ijp1) + u_ice(iip1,ijp1) ) |
---|
| 447 | ze21 = akappa(iim1,ijm1,1,1) * ( v_ice(iip1,ijp1) - v_ice(iim1,ijp1) ) & |
---|
| 448 | & - akappa(iim1,ijm1,1,2) * ( u_ice(iip1,ijp1) + u_ice(iim1,ijp1) ) |
---|
| 449 | zvis11 = 2.0 * zviseta (iim1,ijm1) + dm |
---|
| 450 | zvis22 = zviszeta(iim1,ijm1) - zviseta(iim1,ijm1) |
---|
| 451 | zvis12 = zviseta (iim1,ijm1) + dm |
---|
| 452 | zvis21 = zviseta (iim1,ijm1) |
---|
| 453 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
[77] | 454 | zs11(ji,jj,1,2) = zvis11 * ze11 + zdiag |
---|
| 455 | zs12(ji,jj,1,2) = zvis12 * ze12 + zvis21 * ze21 |
---|
| 456 | zs22(ji,jj,1,2) = zvis11 * ze22 + zdiag |
---|
| 457 | zs21(ji,jj,1,2) = zvis12 * ze21 + zvis21 * ze12 |
---|
[3] | 458 | |
---|
| 459 | iim1 = ji |
---|
| 460 | ijm1 = jj |
---|
| 461 | iip1 = ji + 1 |
---|
| 462 | ijp1 = jj + 1 |
---|
| 463 | ze11 = akappa(iim1,ijm1,1,1) * ( u_ice(iip1,ijm1) + u_ice(iip1,ijp1) - u_ice(iim1,ijp1) ) & |
---|
| 464 | & + akappa(iim1,ijm1,1,2) * ( v_ice(iip1,ijm1) + v_ice(iip1,ijp1) + v_ice(iim1,ijp1) ) |
---|
| 465 | ze12 = - akappa(iim1,ijm1,2,2) * ( u_ice(iip1,ijm1) - u_ice(iim1,ijp1) - u_ice(iip1,ijp1) ) & |
---|
| 466 | & - akappa(iim1,ijm1,2,1) * ( v_ice(iip1,ijm1) + v_ice(iim1,ijp1) + v_ice(iip1,ijp1) ) |
---|
| 467 | ze22 = - akappa(iim1,ijm1,2,2) * ( v_ice(iip1,ijm1) - v_ice(iim1,ijp1) - v_ice(iip1,ijp1) ) & |
---|
| 468 | & + akappa(iim1,ijm1,2,1) * ( u_ice(iip1,ijm1) + u_ice(iim1,ijp1) + u_ice(iip1,ijp1) ) |
---|
| 469 | ze21 = akappa(iim1,ijm1,1,1) * ( v_ice(iip1,ijm1) + v_ice(iip1,ijp1) - v_ice(iim1,ijp1) ) & |
---|
| 470 | & - akappa(iim1,ijm1,1,2) * ( u_ice(iip1,ijm1) + u_ice(iip1,ijp1) + u_ice(iim1,ijp1) ) |
---|
| 471 | zvis11 = 2.0 * zviseta (iim1,ijm1) + dm |
---|
| 472 | zvis22 = zviszeta(iim1,ijm1) - zviseta(iim1,ijm1) |
---|
| 473 | zvis12 = zviseta (iim1,ijm1) + dm |
---|
| 474 | zvis21 = zviseta (iim1,ijm1) |
---|
| 475 | |
---|
| 476 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
[77] | 477 | zs11(ji,jj,2,2) = zvis11 * ze11 + zdiag |
---|
| 478 | zs12(ji,jj,2,2) = zvis12 * ze12 + zvis21 * ze21 |
---|
| 479 | zs22(ji,jj,2,2) = zvis11 * ze22 + zdiag |
---|
| 480 | zs21(ji,jj,2,2) = zvis12 * ze21 + zvis21 * ze12 |
---|
[3] | 481 | |
---|
| 482 | END DO |
---|
| 483 | END DO |
---|
| 484 | |
---|
[391] | 485 | ! Terms involving already up-dated velocities. |
---|
[3] | 486 | !-Using the arrays zu_ice and zv_ice in the computation of the terms ze leads to JACOBI's method; |
---|
[391] | 487 | ! Using arrays u and v in the computation of the terms ze leads to GAUSS-SEIDEL method. |
---|
[3] | 488 | |
---|
[77] | 489 | DO jj = k_j1+1, k_jpj-1 |
---|
[3] | 490 | DO ji = 2, jpim1 |
---|
| 491 | iim1 = ji - 1 |
---|
| 492 | ijm1 = jj - 1 |
---|
| 493 | iip1 = ji |
---|
| 494 | ijp1 = jj |
---|
| 495 | ze11 = akappa(iim1,ijm1,1,1) * ( zu_ice(iip1,ijm1) - zu_ice(iim1,ijm1) - zu_ice(iim1,ijp1) ) & |
---|
| 496 | & + akappa(iim1,ijm1,1,2) * ( zv_ice(iip1,ijm1) + zv_ice(iim1,ijm1) + zv_ice(iim1,ijp1) ) |
---|
| 497 | ze12 = - akappa(iim1,ijm1,2,2) * ( zu_ice(iim1,ijm1) + zu_ice(iip1,ijm1) - zu_ice(iim1,ijp1) ) & |
---|
| 498 | & - akappa(iim1,ijm1,2,1) * ( zv_ice(iim1,ijm1) + zv_ice(iip1,ijm1) + zv_ice(iim1,ijp1) ) |
---|
| 499 | ze22 = - akappa(iim1,ijm1,2,2) * ( zv_ice(iim1,ijm1) + zv_ice(iip1,ijm1) - zv_ice(iim1,ijp1) ) & |
---|
| 500 | & + akappa(iim1,ijm1,2,1) * ( zu_ice(iim1,ijm1) + zu_ice(iip1,ijm1) + zu_ice(iim1,ijp1) ) |
---|
| 501 | ze21 = akappa(iim1,ijm1,1,1) * ( zv_ice(iip1,ijm1) - zv_ice(iim1,ijm1) - zv_ice(iim1,ijp1) ) & |
---|
| 502 | & - akappa(iim1,ijm1,1,2) * ( zu_ice(iip1,ijm1) + zu_ice(iim1,ijm1) + zu_ice(iim1,ijp1) ) |
---|
| 503 | zvis11 = 2.0 * zviseta (iim1,ijm1) + dm |
---|
| 504 | zvis22 = zviszeta(iim1,ijm1) - zviseta(iim1,ijm1) |
---|
| 505 | zvis12 = zviseta (iim1,ijm1) + dm |
---|
| 506 | zvis21 = zviseta (iim1,ijm1) |
---|
| 507 | |
---|
| 508 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
[77] | 509 | zs11(ji,jj,1,1) = zvis11 * ze11 + zdiag |
---|
| 510 | zs12(ji,jj,1,1) = zvis12 * ze12 + zvis21 * ze21 |
---|
| 511 | zs22(ji,jj,1,1) = zvis11 * ze22 + zdiag |
---|
| 512 | zs21(ji,jj,1,1) = zvis12 * ze21 + zvis21 * ze12 |
---|
[3] | 513 | |
---|
[391] | 514 | #if defined key_agrif |
---|
| 515 | END DO |
---|
| 516 | END DO |
---|
[3] | 517 | |
---|
[391] | 518 | DO jj = k_j1+1, k_jpj-1 |
---|
| 519 | DO ji = 2, jpim1 |
---|
| 520 | #endif |
---|
| 521 | |
---|
[3] | 522 | iim1 = ji |
---|
| 523 | ijm1 = jj - 1 |
---|
| 524 | iip1 = ji + 1 |
---|
| 525 | ze11 = akappa(iim1,ijm1,1,1) * ( zu_ice(iip1,ijm1) - zu_ice(iim1,ijm1) ) & |
---|
| 526 | & + akappa(iim1,ijm1,1,2) * ( zv_ice(iip1,ijm1) + zv_ice(iim1,ijm1) ) |
---|
| 527 | ze12 = - akappa(iim1,ijm1,2,2) * ( zu_ice(iim1,ijm1) + zu_ice(iip1,ijm1) ) & |
---|
| 528 | & - akappa(iim1,ijm1,2,1) * ( zv_ice(iim1,ijm1) + zv_ice(iip1,ijm1) ) |
---|
| 529 | ze22 = - akappa(iim1,ijm1,2,2) * ( zv_ice(iim1,ijm1) + zv_ice(iip1,ijm1) ) & |
---|
| 530 | & + akappa(iim1,ijm1,2,1) * ( zu_ice(iim1,ijm1) + zu_ice(iip1,ijm1) ) |
---|
| 531 | ze21 = akappa(iim1,ijm1,1,1) * ( zv_ice(iip1,ijm1) - zv_ice(iim1,ijm1) ) & |
---|
| 532 | & - akappa(iim1,ijm1,1,2) * ( zu_ice(iip1,ijm1) + zu_ice(iim1,ijm1) ) |
---|
| 533 | zvis11 = 2.0 * zviseta (iim1,ijm1) + dm |
---|
| 534 | zvis22 = zviszeta(iim1,ijm1) - zviseta(iim1,ijm1) |
---|
| 535 | zvis12 = zviseta (iim1,ijm1) + dm |
---|
| 536 | zvis21 = zviseta (iim1,ijm1) |
---|
| 537 | |
---|
| 538 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
[77] | 539 | zs11(ji,jj,2,1) = zs11(ji,jj,2,1) + zvis11 * ze11 + zdiag |
---|
| 540 | zs12(ji,jj,2,1) = zs12(ji,jj,2,1) + zvis12 * ze12 + zvis21 * ze21 |
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| 541 | zs22(ji,jj,2,1) = zs22(ji,jj,2,1) + zvis11 * ze22 + zdiag |
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| 542 | zs21(ji,jj,2,1) = zs21(ji,jj,2,1) + zvis12 * ze21 + zvis21 * ze12 |
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[3] | 543 | |
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| 544 | |
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| 545 | iim1 = ji - 1 |
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| 546 | ijm1 = jj |
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| 547 | ze11 = - akappa(iim1,ijm1,1,1) * zu_ice(iim1,ijm1) + akappa(iim1,ijm1,1,2) * zv_ice(iim1,ijm1) |
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| 548 | ze12 = - akappa(iim1,ijm1,2,2) * zu_ice(iim1,ijm1) - akappa(iim1,ijm1,2,1) * zv_ice(iim1,ijm1) |
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| 549 | ze22 = - akappa(iim1,ijm1,2,2) * zv_ice(iim1,ijm1) + akappa(iim1,ijm1,2,1) * zu_ice(iim1,ijm1) |
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| 550 | ze21 = - akappa(iim1,ijm1,1,1) * zv_ice(iim1,ijm1) - akappa(iim1,ijm1,1,2) * zu_ice(iim1,ijm1) |
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| 551 | zvis11 = 2.0 * zviseta (iim1,ijm1) + dm |
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| 552 | zvis22 = zviszeta(iim1,ijm1) - zviseta(iim1,ijm1) |
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| 553 | zvis12 = zviseta (iim1,ijm1) + dm |
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| 554 | zvis21 = zviseta (iim1,ijm1) |
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| 555 | |
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| 556 | zdiag = zvis22 * ( ze11 + ze22 ) |
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[77] | 557 | zs11(ji,jj,1,2) = zs11(ji,jj,1,2) + zvis11 * ze11 + zdiag |
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| 558 | zs12(ji,jj,1,2) = zs12(ji,jj,1,2) + zvis12 * ze12 + zvis21 * ze21 |
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| 559 | zs22(ji,jj,1,2) = zs22(ji,jj,1,2) + zvis11 * ze22 + zdiag |
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| 560 | zs21(ji,jj,1,2) = zs21(ji,jj,1,2) + zvis12 * ze21 + zvis21 * ze12 |
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[3] | 561 | |
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[391] | 562 | #if defined key_agrif |
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| 563 | END DO |
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| 564 | END DO |
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[3] | 565 | |
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[391] | 566 | DO jj = k_j1+1, k_jpj-1 |
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| 567 | DO ji = 2, jpim1 |
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| 568 | #endif |
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[77] | 569 | zd1(ji,jj) = & |
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| 570 | + alambd(ji,jj,2,2,2,1) * zs11(ji,jj,2,1) + alambd(ji,jj,2,2,2,2) * zs11(ji,jj,2,2) & |
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| 571 | - alambd(ji,jj,2,2,1,1) * zs11(ji,jj,1,1) - alambd(ji,jj,2,2,1,2) * zs11(ji,jj,1,2) & |
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| 572 | - alambd(ji,jj,1,1,2,1) * zs12(ji,jj,2,1) - alambd(ji,jj,1,1,1,1) * zs12(ji,jj,1,1) & |
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| 573 | + alambd(ji,jj,1,1,2,2) * zs12(ji,jj,2,2) + alambd(ji,jj,1,1,1,2) * zs12(ji,jj,1,2) & |
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| 574 | + alambd(ji,jj,1,2,1,1) * zs21(ji,jj,1,1) + alambd(ji,jj,1,2,2,1) * zs21(ji,jj,2,1) & |
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| 575 | + alambd(ji,jj,1,2,1,2) * zs21(ji,jj,1,2) + alambd(ji,jj,1,2,2,2) * zs21(ji,jj,2,2) & |
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| 576 | - alambd(ji,jj,2,1,1,1) * zs22(ji,jj,1,1) - alambd(ji,jj,2,1,2,1) * zs22(ji,jj,2,1) & |
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| 577 | - alambd(ji,jj,2,1,1,2) * zs22(ji,jj,1,2) - alambd(ji,jj,2,1,2,2) * zs22(ji,jj,2,2) |
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| 578 | zd2(ji,jj) = & |
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| 579 | + alambd(ji,jj,2,2,2,1) * zs21(ji,jj,2,1) + alambd(ji,jj,2,2,2,2) * zs21(ji,jj,2,2) & |
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| 580 | - alambd(ji,jj,2,2,1,1) * zs21(ji,jj,1,1) - alambd(ji,jj,2,2,1,2) * zs21(ji,jj,1,2) & |
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| 581 | - alambd(ji,jj,1,1,2,1) * zs22(ji,jj,2,1) - alambd(ji,jj,1,1,1,1) * zs22(ji,jj,1,1) & |
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| 582 | + alambd(ji,jj,1,1,2,2) * zs22(ji,jj,2,2) + alambd(ji,jj,1,1,1,2) * zs22(ji,jj,1,2) & |
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| 583 | - alambd(ji,jj,1,2,1,1) * zs11(ji,jj,1,1) - alambd(ji,jj,1,2,2,1) * zs11(ji,jj,2,1) & |
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| 584 | - alambd(ji,jj,1,2,1,2) * zs11(ji,jj,1,2) - alambd(ji,jj,1,2,2,2) * zs11(ji,jj,2,2) & |
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| 585 | + alambd(ji,jj,2,1,1,1) * zs12(ji,jj,1,1) + alambd(ji,jj,2,1,2,1) * zs12(ji,jj,2,1) & |
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| 586 | + alambd(ji,jj,2,1,1,2) * zs12(ji,jj,1,2) + alambd(ji,jj,2,1,2,2) * zs12(ji,jj,2,2) |
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[3] | 587 | END DO |
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| 588 | END DO |
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| 589 | |
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[77] | 590 | DO jj = k_j1+1, k_jpj-1 |
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[3] | 591 | DO ji = 2, jpim1 |
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| 592 | zunw = ( ( za1(ji,jj) + zd1(ji,jj) ) * zc2(ji,jj) & |
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| 593 | & + ( za2(ji,jj) + zd2(ji,jj) ) * zc1(ji,jj) ) * zden(ji,jj) |
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| 594 | |
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| 595 | zvnw = ( ( za2(ji,jj) + zd2(ji,jj) ) * zb1(ji,jj) & |
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| 596 | & - ( za1(ji,jj) + zd1(ji,jj) ) * zb2(ji,jj) ) * zden(ji,jj) |
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| 597 | |
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| 598 | zmask = ( 1.0 - MAX( rzero, SIGN( rone , 1.0 - zmass(ji,jj) ) ) ) * tmu(ji,jj) |
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| 599 | |
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| 600 | u_ice(ji,jj) = ( u_ice(ji,jj) + om * ( zunw - u_ice(ji,jj) ) * tmu(ji,jj) ) * zmask |
---|
| 601 | v_ice(ji,jj) = ( v_ice(ji,jj) + om * ( zvnw - v_ice(ji,jj) ) * tmu(ji,jj) ) * zmask |
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| 602 | END DO |
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| 603 | END DO |
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| 604 | |
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| 605 | CALL lbc_lnk( u_ice, 'I', -1. ) |
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| 606 | CALL lbc_lnk( v_ice, 'I', -1. ) |
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| 607 | |
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| 608 | !--- 5.2.5.4. Convergence test. |
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[77] | 609 | DO jj = k_j1+1 , k_jpj-1 |
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[3] | 610 | zresr(:,jj) = MAX( ABS( u_ice(:,jj) - zu_ice(:,jj) ) , ABS( v_ice(:,jj) - zv_ice(:,jj) ) ) |
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| 611 | END DO |
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[77] | 612 | zresm = MAXVAL( zresr( 1:jpi , k_j1+1:k_jpj-1 ) ) |
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| 613 | IF( lk_mpp ) CALL mpp_max( zresm ) ! max over the global domain |
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[3] | 614 | |
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| 615 | IF ( zresm <= resl) EXIT iflag |
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| 616 | |
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| 617 | END DO iflag |
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| 618 | |
---|
| 619 | zindu1 = 1.0 - zindu |
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[77] | 620 | DO jj = k_j1 , k_jpj-1 |
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[3] | 621 | zu0(:,jj) = zindu * zu0(:,jj) + zindu1 * u_ice(:,jj) |
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| 622 | zv0(:,jj) = zindu * zv0(:,jj) + zindu1 * v_ice(:,jj) |
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| 623 | END DO |
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| 624 | ! ! ==================== ! |
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| 625 | END DO ! end loop over iter ! |
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| 626 | ! ! ==================== ! |
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| 627 | |
---|
[258] | 628 | IF(ln_ctl) THEN |
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| 629 | WRITE(charout,FMT="('lim_rhg : res =',D23.16, ' iter =',I4)") zresm, jter |
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| 630 | CALL prt_ctl_info(charout) |
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| 631 | CALL prt_ctl(tab2d_1=u_ice, clinfo1=' lim_rhg : u_ice :', tab2d_2=v_ice, clinfo2=' v_ice :') |
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[3] | 632 | ENDIF |
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| 633 | |
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| 634 | END SUBROUTINE lim_rhg |
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[77] | 635 | |
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[3] | 636 | #else |
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[77] | 637 | !!---------------------------------------------------------------------- |
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| 638 | !! Default option Dummy module NO LIM sea-ice model |
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| 639 | !!---------------------------------------------------------------------- |
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[3] | 640 | CONTAINS |
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[77] | 641 | SUBROUTINE lim_rhg( k1 , k2 ) ! Dummy routine |
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| 642 | WRITE(*,*) 'lim_rhg: You should not have seen this print! error?', k1, k2 |
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[3] | 643 | END SUBROUTINE lim_rhg |
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| 644 | #endif |
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| 645 | |
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[77] | 646 | !!============================================================================== |
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[3] | 647 | END MODULE limrhg |
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