1 | MODULE limrhg_2 |
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2 | !!====================================================================== |
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3 | !! *** MODULE limrhg_2 *** |
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4 | !! Ice rheology : performs sea ice rheology |
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5 | !!====================================================================== |
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6 | !! History : 0.0 ! 1993-12 (M.A. Morales Maqueda.) Original code |
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7 | !! 1.0 ! 1994-12 (H. Goosse) |
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8 | !! 2.0 ! 2003-12 (C. Ethe, G. Madec) F90, mpp |
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9 | !! - ! 2006-08 (G. Madec) surface module, ice-stress at I-point |
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10 | !! - ! 2009-09 (G. Madec) Huge verctor optimisation |
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11 | !! 3.3 ! 2009-05 (G.Garric, C. Bricaud) addition of the lim2_evp case |
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12 | !!---------------------------------------------------------------------- |
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13 | #if defined key_lim2 && defined key_lim2_vp |
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14 | !!---------------------------------------------------------------------- |
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15 | !! 'key_lim2' AND LIM-2 sea-ice model |
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16 | !! 'key_lim2_vp' VP ice rheology |
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17 | !!---------------------------------------------------------------------- |
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18 | !! lim_rhg_2 : computes ice velocities |
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19 | !!---------------------------------------------------------------------- |
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20 | USE par_oce ! ocean parameter |
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21 | USE dom_oce ! ocean space and time domain |
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22 | USE sbc_oce ! surface boundary condition: ocean variables |
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23 | USE sbc_ice ! surface boundary condition: ice variables |
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24 | USE dom_ice_2 ! LIM2: ice domain |
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25 | USE phycst ! physical constant |
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26 | USE ice_2 ! LIM2: ice variables |
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27 | USE lbclnk ! lateral boundary condition - MPP exchanges |
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28 | USE lib_mpp ! MPP library |
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29 | USE wrk_nemo ! work arrays |
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30 | USE in_out_manager ! I/O manager |
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31 | USE prtctl ! Print control |
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32 | USE oce , ONLY : snwice_mass, snwice_mass_b |
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33 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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34 | #if defined key_agrif |
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35 | USE agrif_lim2_interp ! nesting |
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36 | #endif |
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37 | |
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38 | IMPLICIT NONE |
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39 | PRIVATE |
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40 | |
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41 | PUBLIC lim_rhg_2 ! routine called by lim_dyn |
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42 | |
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43 | REAL(wp) :: rzero = 0._wp ! constant value: zero |
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44 | REAL(wp) :: rone = 1._wp ! and one |
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45 | |
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46 | !! * Substitutions |
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47 | # include "vectopt_loop_substitute.h90" |
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48 | !!---------------------------------------------------------------------- |
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49 | !! NEMO/LIM2 3.3 , UCL - NEMO Consortium (2010) |
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50 | !! $Id$ |
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51 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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52 | !!---------------------------------------------------------------------- |
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53 | CONTAINS |
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54 | |
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55 | SUBROUTINE lim_rhg_2( k_j1, k_jpj ) |
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56 | !!------------------------------------------------------------------- |
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57 | !! *** SUBROUTINR lim_rhg_2 *** |
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58 | !! |
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59 | !! ** purpose : determines the velocity field of sea ice by using |
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60 | !! atmospheric (wind stress) and oceanic (water stress and surface |
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61 | !! tilt) forcings. Ice-ice interaction is described by a non-linear |
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62 | !! viscous-plastic law including shear strength and a bulk rheology. |
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63 | !! |
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64 | !! ** Action : - compute u_ice, v_ice the sea-ice velocity defined |
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65 | !! at I-point |
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66 | !!------------------------------------------------------------------- |
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67 | INTEGER, INTENT(in) :: k_j1 ! southern j-index for ice computation |
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68 | INTEGER, INTENT(in) :: k_jpj ! northern j-index for ice computation |
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69 | !! |
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70 | INTEGER :: ji, jj ! dummy loop indices |
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71 | INTEGER :: iter, jter ! temporary integers |
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72 | CHARACTER (len=50) :: charout |
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73 | REAL(wp) :: ze11 , ze12 , ze22 , ze21 ! local scalars |
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74 | REAL(wp) :: zt11 , zt12 , zt21 , zt22 ! - - |
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75 | REAL(wp) :: zvis11, zvis21, zvis12, zvis22 ! - - |
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76 | REAL(wp) :: zgphsx, ztagnx, zgsshx, zunw, zur, zusw ! - - |
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77 | REAL(wp) :: zgphsy, ztagny, zgsshy, zvnw, zvr ! - - |
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78 | REAL(wp) :: zresm, za, zac, zmod |
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79 | REAL(wp) :: zmpzas, zstms, zindu, zusdtp, zmassdt, zcorlal |
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80 | REAL(wp) :: ztrace2, zdeter, zdelta, zmask, zdgp, zdgi, zdiag |
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81 | REAL(wp) :: za1, zb1, zc1, zd1 |
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82 | REAL(wp) :: za2, zb2, zc2, zd2, zden |
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83 | REAL(wp) :: zs11_11, zs11_12, zs11_21, zs11_22 |
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84 | REAL(wp) :: zs12_11, zs12_12, zs12_21, zs12_22 |
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85 | REAL(wp) :: zs21_11, zs21_12, zs21_21, zs21_22 |
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86 | REAL(wp) :: zs22_11, zs22_12, zs22_21, zs22_22 |
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87 | REAL(wp) :: zintb, zintn |
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88 | REAL(wp), POINTER, DIMENSION(:,:) :: zfrld, zmass, zcorl |
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89 | REAL(wp), POINTER, DIMENSION(:,:) :: za1ct, za2ct, zresr |
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90 | REAL(wp), POINTER, DIMENSION(:,:) :: zc1u, zc1v, zc2u, zc2v |
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91 | REAL(wp), POINTER, DIMENSION(:,:) :: zsang, zpice |
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92 | REAL(wp), POINTER, DIMENSION(:,:) :: zu0, zv0 |
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93 | REAL(wp), POINTER, DIMENSION(:,:) :: zu_n, zv_n |
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94 | REAL(wp), POINTER, DIMENSION(:,:) :: zu_a, zv_a |
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95 | REAL(wp), POINTER, DIMENSION(:,:) :: zviszeta, zviseta |
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96 | REAL(wp), POINTER, DIMENSION(:,:) :: zzfrld, zztms |
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97 | REAL(wp), POINTER, DIMENSION(:,:) :: zi1, zi2, zmasst, zpresh |
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98 | !!------------------------------------------------------------------- |
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99 | |
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100 | CALL wrk_alloc( jpi,jpj, zfrld, zmass, zcorl, za1ct, za2ct, zresr ) |
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101 | CALL wrk_alloc( jpi,jpj, zc1u , zc1v , zc2u , zc2v , zsang, zpice ) |
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102 | CALL wrk_alloc( jpi,jpj+2, zu0, zv0, zu_n, zv_n, zu_a, zv_a, zviszeta, zviseta, kjstart = 0 ) |
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103 | CALL wrk_alloc( jpi,jpj+2, zzfrld, zztms, zi1, zi2, zmasst, zpresh, kjstart = 0 ) |
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104 | |
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105 | ! Store initial velocities |
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106 | ! ---------------- |
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107 | zztms(:,0 ) = 0._wp ; zzfrld(:,0 ) = 0._wp |
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108 | zztms(:,jpj+1) = 0._wp ; zzfrld(:,jpj+1) = 0._wp |
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109 | zu0 (:,0 ) = 0._wp ; zv0 (:,0 ) = 0._wp |
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110 | zu0 (:,jpj+1) = 0._wp ; zv0 (:,jpj+1) = 0._wp |
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111 | zztms(:,1:jpj) = tms (:,:) ; zzfrld(:,1:jpj) = frld (:,:) |
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112 | zu0 (:,1:jpj) = u_ice(:,:) ; zv0 (:,1:jpj) = v_ice(:,:) |
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113 | zu_a (:, : ) = zu0 (:,:) ; zv_a (:, : ) = zv0 (:,:) |
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114 | zu_n (:, : ) = zu0 (:,:) ; zv_n (:, : ) = zv0 (:,:) |
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115 | |
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116 | !i |
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117 | zi1 (:,:) = 0._wp |
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118 | zi2 (:,:) = 0._wp |
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119 | zpresh(:,:) = 0._wp |
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120 | zmasst(:,:) = 0._wp |
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121 | !i |
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122 | !!gm violant |
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123 | zfrld(:,:) =0._wp |
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124 | zcorl(:,:) =0._wp |
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125 | zmass(:,:) =0._wp |
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126 | za1ct(:,:) =0._wp |
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127 | za2ct(:,:) =0._wp |
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128 | !!gm end |
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129 | |
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130 | zviszeta(:,:) = 0._wp |
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131 | zviseta (:,:) = 0._wp |
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132 | |
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133 | !i zviszeta(:,0 ) = 0._wp ; zviseta(:,0 ) = 0._wp |
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134 | !i zviszeta(:,jpj ) = 0._wp ; zviseta(:,jpj ) = 0._wp |
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135 | !i zviszeta(:,jpj+1) = 0._wp ; zviseta(:,jpj+1) = 0._wp |
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136 | |
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137 | IF( nn_ice_embd == 2 ) THEN !== embedded sea ice: compute representative ice top surface ==! |
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138 | ! |
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139 | ! average interpolation coeff as used in dynspg = (1/nn_fsbc) * {SUM[n/nn_fsbc], n=0,nn_fsbc-1} |
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140 | ! = (1/nn_fsbc)^2 * {SUM[n], n=0,nn_fsbc-1} |
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141 | zintn = REAL( nn_fsbc - 1 ) / REAL( nn_fsbc ) * 0.5_wp |
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142 | ! |
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143 | ! average interpolation coeff as used in dynspg = (1/nn_fsbc) * {SUM[1-n/nn_fsbc], n=0,nn_fsbc-1} |
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144 | ! = (1/nn_fsbc)^2 * (nn_fsbc^2 - {SUM[n], n=0,nn_fsbc-1}) |
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145 | zintb = REAL( nn_fsbc + 1 ) / REAL( nn_fsbc ) * 0.5_wp |
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146 | ! |
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147 | zpice(:,:) = ssh_m(:,:) + ( zintn * snwice_mass(:,:) + zintb * snwice_mass_b(:,:) ) * r1_rau0 |
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148 | ! |
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149 | ! |
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150 | ELSE !== non-embedded sea ice: use ocean surface for slope calculation ==! |
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151 | zpice(:,:) = ssh_m(:,:) |
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152 | ENDIF |
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153 | #if defined key_agrif |
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154 | ! load the boundary value of velocity in special array zuive and zvice |
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155 | CALL agrif_rhg_lim2_load |
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156 | #endif |
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157 | |
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158 | ! Ice mass, ice strength, and wind stress at the center | |
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159 | ! of the grid squares. | |
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160 | !------------------------------------------------------------------- |
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161 | |
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162 | !CDIR NOVERRCHK |
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163 | DO jj = k_j1 , k_jpj-1 |
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164 | !CDIR NOVERRCHK |
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165 | DO ji = 1 , jpi |
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166 | ! only the sinus changes its sign with the hemisphere |
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167 | zsang(ji,jj) = SIGN( 1._wp, fcor(ji,jj) ) * sangvg ! only the sinus changes its sign with the hemisphere |
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168 | ! |
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169 | zmasst(ji,jj) = tms(ji,jj) * ( rhosn * hsnm(ji,jj) + rhoic * hicm(ji,jj) ) |
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170 | zpresh(ji,jj) = tms(ji,jj) * pstarh * hicm(ji,jj) * EXP( -c_rhg * frld(ji,jj) ) |
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171 | !!gm :: stress given at I-point (F-point for the ocean) only compute the ponderation with the ice fraction (1-frld) |
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172 | zi1(ji,jj) = tms(ji,jj) * ( 1._wp - frld(ji,jj) ) |
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173 | zi2(ji,jj) = tms(ji,jj) * ( 1._wp - frld(ji,jj) ) |
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174 | END DO |
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175 | END DO |
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176 | |
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177 | |
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178 | !--------------------------------------------------------------------------- |
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179 | ! Wind stress, coriolis and mass terms at the corners of the grid squares | |
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180 | ! Gradient of ice strenght. | |
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181 | !--------------------------------------------------------------------------- |
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182 | |
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183 | DO jj = k_j1+1, k_jpj-1 |
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184 | DO ji = 2, jpi ! NO vector opt. |
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185 | zstms = zztms(ji,jj ) * wght(ji,jj,2,2) + zztms(ji-1,jj ) * wght(ji,jj,1,2) & |
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186 | & + zztms(ji,jj-1) * wght(ji,jj,2,1) + zztms(ji-1,jj-1) * wght(ji,jj,1,1) |
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187 | zusw = 1._wp / MAX( zstms, epsd ) |
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188 | |
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189 | zt11 = zztms(ji ,jj ) * zzfrld(ji ,jj ) |
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190 | zt12 = zztms(ji-1,jj ) * zzfrld(ji-1,jj ) |
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191 | zt21 = zztms(ji ,jj-1) * zzfrld(ji ,jj-1) |
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192 | zt22 = zztms(ji-1,jj-1) * zzfrld(ji-1,jj-1) |
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193 | |
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194 | ! Leads area. |
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195 | zfrld(ji,jj) = ( zt11 * wght(ji,jj,2,2) + zt12 * wght(ji,jj,1,2) & |
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196 | & + zt21 * wght(ji,jj,2,1) + zt22 * wght(ji,jj,1,1) ) * zusw |
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197 | |
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198 | ! Mass and coriolis coeff. at I-point |
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199 | zmass(ji,jj) = ( zmasst(ji,jj ) * wght(ji,jj,2,2) + zmasst(ji-1,jj ) * wght(ji,jj,1,2) & |
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200 | & + zmasst(ji,jj-1) * wght(ji,jj,2,1) + zmasst(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw |
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201 | zcorl(ji,jj) = zmass(ji,jj) & |
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202 | & *( fcor(ji,jj ) * wght(ji,jj,2,2) + fcor(ji-1,jj )*wght(ji,jj,1,2) & |
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203 | & + fcor(ji,jj-1) * wght(ji,jj,2,1) + fcor(ji-1,jj-1)*wght(ji,jj,1,1) ) * zusw |
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204 | |
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205 | ! Wind stress. |
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206 | ! always provide stress at I-point |
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207 | ztagnx = ( zi1(ji,jj ) * wght(ji,jj,2,2) + zi1(ji-1,jj ) * wght(ji,jj,1,2) & |
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208 | & + zi1(ji,jj-1) * wght(ji,jj,2,1) + zi1(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw * utau_ice(ji,jj) |
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209 | ztagny = ( zi2(ji,jj ) * wght(ji,jj,2,2) + zi2(ji-1,jj ) * wght(ji,jj,1,2) & |
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210 | & + zi2(ji,jj-1) * wght(ji,jj,2,1) + zi2(ji-1,jj-1) * wght(ji,jj,1,1) ) * zusw * vtau_ice(ji,jj) |
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211 | |
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212 | ! Gradient of ice strength |
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213 | zgphsx = ( alambd(ji,jj,2,2,2,1) - alambd(ji,jj,2,1,2,1) ) * zpresh(ji ,jj-1) & |
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214 | & + ( alambd(ji,jj,2,2,2,2) - alambd(ji,jj,2,1,2,2) ) * zpresh(ji ,jj ) & |
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215 | & - ( alambd(ji,jj,2,2,1,1) + alambd(ji,jj,2,1,1,1) ) * zpresh(ji-1,jj-1) & |
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216 | & - ( alambd(ji,jj,2,2,1,2) + alambd(ji,jj,2,1,1,2) ) * zpresh(ji-1,jj ) |
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217 | |
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218 | zgphsy = - ( alambd(ji,jj,1,1,2,1) + alambd(ji,jj,1,2,2,1) ) * zpresh(ji ,jj-1) & |
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219 | & - ( alambd(ji,jj,1,1,1,1) + alambd(ji,jj,1,2,1,1) ) * zpresh(ji-1,jj-1) & |
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220 | & + ( alambd(ji,jj,1,1,2,2) - alambd(ji,jj,1,2,2,2) ) * zpresh(ji ,jj ) & |
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221 | & + ( alambd(ji,jj,1,1,1,2) - alambd(ji,jj,1,2,1,2) ) * zpresh(ji-1,jj ) |
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222 | |
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223 | ! Gradient of the sea surface height |
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224 | zgsshx = ( (zpice(ji ,jj ) - zpice(ji-1,jj ))/e1u(ji-1,jj ) & |
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225 | & + (zpice(ji ,jj-1) - zpice(ji-1,jj-1))/e1u(ji-1,jj-1) ) * 0.5_wp |
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226 | zgsshy = ( (zpice(ji ,jj ) - zpice(ji ,jj-1))/e2v(ji ,jj-1) & |
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227 | & + (zpice(ji-1,jj ) - zpice(ji-1,jj-1))/e2v(ji-1,jj-1) ) * 0.5_wp |
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228 | |
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229 | ! Computation of the velocity field taking into account the ice-ice interaction. |
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230 | ! Terms that are independent of the ice velocity field. |
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231 | za1ct(ji,jj) = ztagnx - zmass(ji,jj) * grav * zgsshx - zgphsx |
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232 | za2ct(ji,jj) = ztagny - zmass(ji,jj) * grav * zgsshy - zgphsy |
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233 | END DO |
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234 | END DO |
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235 | |
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236 | |
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237 | ! SOLUTION OF THE MOMENTUM EQUATION. |
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238 | !------------------------------------------ |
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239 | ! ! ==================== ! |
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240 | DO iter = 1 , 2 * nbiter ! loop over iter ! |
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241 | ! ! ==================== ! |
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242 | zindu = MOD( iter , 2 ) |
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243 | zusdtp = ( zindu * 2._wp + ( 1._wp - zindu ) * 1._wp ) * REAL( nbiter ) / rdt_ice |
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244 | |
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245 | ! Computation of free drift field for free slip boundary conditions. |
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246 | |
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247 | !CDIR NOVERRCHK |
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248 | DO jj = k_j1, k_jpj-1 |
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249 | !CDIR NOVERRCHK |
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250 | DO ji = 1, fs_jpim1 |
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251 | !- Rate of strain tensor. |
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252 | zt11 = akappa(ji,jj,1,1) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) - zu_a(ji,jj ) - zu_a(ji ,jj+1) ) & |
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253 | & + akappa(ji,jj,1,2) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) + zv_a(ji,jj ) + zv_a(ji ,jj+1) ) |
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254 | zt12 = - akappa(ji,jj,2,2) * ( zu_a(ji ,jj) + zu_a(ji+1,jj ) - zu_a(ji,jj+1) - zu_a(ji+1,jj+1) ) & |
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255 | & - akappa(ji,jj,2,1) * ( zv_a(ji ,jj) + zv_a(ji+1,jj ) + zv_a(ji,jj+1) + zv_a(ji+1,jj+1) ) |
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256 | zt22 = - akappa(ji,jj,2,2) * ( zv_a(ji ,jj) + zv_a(ji+1,jj ) - zv_a(ji,jj+1) - zv_a(ji+1,jj+1) ) & |
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257 | & + akappa(ji,jj,2,1) * ( zu_a(ji ,jj) + zu_a(ji+1,jj ) + zu_a(ji,jj+1) + zu_a(ji+1,jj+1) ) |
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258 | zt21 = akappa(ji,jj,1,1) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) - zv_a(ji,jj ) - zv_a(ji ,jj+1) ) & |
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259 | & - akappa(ji,jj,1,2) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) + zu_a(ji,jj ) + zu_a(ji ,jj+1) ) |
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260 | |
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261 | !- Rate of strain tensor. |
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262 | zdgp = zt11 + zt22 |
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263 | zdgi = zt12 + zt21 |
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264 | ztrace2 = zdgp * zdgp |
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265 | zdeter = zt11 * zt22 - 0.25_wp * zdgi * zdgi |
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266 | |
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267 | ! Creep limit depends on the size of the grid. |
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268 | zdelta = MAX( SQRT( ztrace2 + ( ztrace2 - 4._wp * zdeter ) * usecc2 ), rn_creepl) |
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269 | |
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270 | !- Computation of viscosities. |
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271 | zviszeta(ji,jj) = MAX( zpresh(ji,jj) / zdelta, etamn ) |
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272 | zviseta (ji,jj) = zviszeta(ji,jj) * usecc2 |
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273 | END DO |
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274 | END DO |
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275 | |
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276 | !- Determination of zc1u, zc2u, zc1v and zc2v. |
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277 | DO jj = k_j1+1, k_jpj-1 |
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278 | DO ji = 2, fs_jpim1 ! NO vector opt. |
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279 | !* zc1u , zc2v |
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280 | zvis11 = 2._wp * zviseta (ji-1,jj-1) + dm |
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281 | zvis12 = zviseta (ji-1,jj-1) + dm |
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282 | zvis21 = zviseta (ji-1,jj-1) |
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283 | zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1) |
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284 | zdiag = zvis22 * ( akappa(ji-1,jj-1,1,1) + akappa(ji-1,jj-1,2,1) ) |
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285 | zs11_11 = zvis11 * akappa(ji-1,jj-1,1,1) + zdiag |
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286 | zs12_11 = zvis12 * akappa(ji-1,jj-1,2,2) - zvis21 * akappa(ji-1,jj-1,1,2) |
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287 | zs21_11 = -zvis12 * akappa(ji-1,jj-1,1,2) + zvis21 * akappa(ji-1,jj-1,2,2) |
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288 | zs22_11 = zvis11 * akappa(ji-1,jj-1,2,1) + zdiag |
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289 | |
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290 | zvis11 = 2._wp * zviseta (ji,jj-1) + dm |
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291 | zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1) |
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292 | zvis12 = zviseta (ji,jj-1) + dm |
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293 | zvis21 = zviseta (ji,jj-1) |
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294 | zdiag = zvis22 * ( -akappa(ji,jj-1,1,1) + akappa(ji,jj-1,2,1) ) |
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295 | zs11_21 = -zvis11 * akappa(ji,jj-1,1,1) + zdiag |
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296 | zs12_21 = zvis12 * akappa(ji,jj-1,2,2) - zvis21 * akappa(ji,jj-1,1,2) |
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297 | zs22_21 = zvis11 * akappa(ji,jj-1,2,1) + zdiag |
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298 | zs21_21 = -zvis12 * akappa(ji,jj-1,1,2) + zvis21 * akappa(ji,jj-1,2,2) |
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299 | |
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300 | zvis11 = 2._wp * zviseta (ji-1,jj) + dm |
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301 | zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj) |
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302 | zvis12 = zviseta (ji-1,jj) + dm |
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303 | zvis21 = zviseta (ji-1,jj) |
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304 | zdiag = zvis22 * ( akappa(ji-1,jj,1,1) + akappa(ji-1,jj,2,1) ) |
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305 | zs11_12 = zvis11 * akappa(ji-1,jj,1,1) + zdiag |
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306 | zs12_12 = -zvis12 * akappa(ji-1,jj,2,2) - zvis21 * akappa(ji-1,jj,1,2) |
---|
307 | zs22_12 = zvis11 * akappa(ji-1,jj,2,1) + zdiag |
---|
308 | zs21_12 = -zvis12 * akappa(ji-1,jj,1,2) - zvis21 * akappa(ji-1,jj,2,2) |
---|
309 | |
---|
310 | zvis11 = 2._wp * zviseta (ji,jj) + dm |
---|
311 | zvis22 = zviszeta(ji,jj) - zviseta(ji,jj) |
---|
312 | zvis12 = zviseta (ji,jj) + dm |
---|
313 | zvis21 = zviseta (ji,jj) |
---|
314 | zdiag = zvis22 * ( -akappa(ji,jj,1,1) + akappa(ji,jj,2,1) ) |
---|
315 | zs11_22 = -zvis11 * akappa(ji,jj,1,1) + zdiag |
---|
316 | zs12_22 = -zvis12 * akappa(ji,jj,2,2) - zvis21 * akappa(ji,jj,1,2) |
---|
317 | zs22_22 = zvis11 * akappa(ji,jj,2,1) + zdiag |
---|
318 | zs21_22 = -zvis12 * akappa(ji,jj,1,2) - zvis21 * akappa(ji,jj,2,2) |
---|
319 | |
---|
320 | zc1u(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs11_21 + alambd(ji,jj,2,2,2,2) * zs11_22 & |
---|
321 | & - alambd(ji,jj,2,2,1,1) * zs11_11 - alambd(ji,jj,2,2,1,2) * zs11_12 & |
---|
322 | & - alambd(ji,jj,1,1,2,1) * zs12_21 - alambd(ji,jj,1,1,1,1) * zs12_11 & |
---|
323 | & + alambd(ji,jj,1,1,2,2) * zs12_22 + alambd(ji,jj,1,1,1,2) * zs12_12 & |
---|
324 | & + alambd(ji,jj,1,2,1,1) * zs21_11 + alambd(ji,jj,1,2,2,1) * zs21_21 & |
---|
325 | & + alambd(ji,jj,1,2,1,2) * zs21_12 + alambd(ji,jj,1,2,2,2) * zs21_22 & |
---|
326 | & - alambd(ji,jj,2,1,1,1) * zs22_11 - alambd(ji,jj,2,1,2,1) * zs22_21 & |
---|
327 | & - alambd(ji,jj,2,1,1,2) * zs22_12 - alambd(ji,jj,2,1,2,2) * zs22_22 |
---|
328 | |
---|
329 | zc2u(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs21_21 + alambd(ji,jj,2,2,2,2) * zs21_22 & |
---|
330 | & - alambd(ji,jj,2,2,1,1) * zs21_11 - alambd(ji,jj,2,2,1,2) * zs21_12 & |
---|
331 | & - alambd(ji,jj,1,1,2,1) * zs22_21 - alambd(ji,jj,1,1,1,1) * zs22_11 & |
---|
332 | & + alambd(ji,jj,1,1,2,2) * zs22_22 + alambd(ji,jj,1,1,1,2) * zs22_12 & |
---|
333 | & - alambd(ji,jj,1,2,1,1) * zs11_11 - alambd(ji,jj,1,2,2,1) * zs11_21 & |
---|
334 | & - alambd(ji,jj,1,2,1,2) * zs11_12 - alambd(ji,jj,1,2,2,2) * zs11_22 & |
---|
335 | & + alambd(ji,jj,2,1,1,1) * zs12_11 + alambd(ji,jj,2,1,2,1) * zs12_21 & |
---|
336 | & + alambd(ji,jj,2,1,1,2) * zs12_12 + alambd(ji,jj,2,1,2,2) * zs12_22 |
---|
337 | |
---|
338 | !* zc1v , zc2v. |
---|
339 | zvis11 = 2._wp * zviseta (ji-1,jj-1) + dm |
---|
340 | zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1) |
---|
341 | zvis12 = zviseta (ji-1,jj-1) + dm |
---|
342 | zvis21 = zviseta (ji-1,jj-1) |
---|
343 | zdiag = zvis22 * ( akappa(ji-1,jj-1,1,2) + akappa(ji-1,jj-1,2,2) ) |
---|
344 | zs11_11 = zvis11 * akappa(ji-1,jj-1,1,2) + zdiag |
---|
345 | zs12_11 = -zvis12 * akappa(ji-1,jj-1,2,1) + zvis21 * akappa(ji-1,jj-1,1,1) |
---|
346 | zs22_11 = zvis11 * akappa(ji-1,jj-1,2,2) + zdiag |
---|
347 | zs21_11 = zvis12 * akappa(ji-1,jj-1,1,1) - zvis21 * akappa(ji-1,jj-1,2,1) |
---|
348 | |
---|
349 | zvis11 = 2._wp * zviseta (ji,jj-1) + dm |
---|
350 | zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1) |
---|
351 | zvis12 = zviseta (ji,jj-1) + dm |
---|
352 | zvis21 = zviseta (ji,jj-1) |
---|
353 | zdiag = zvis22 * ( akappa(ji,jj-1,1,2) + akappa(ji,jj-1,2,2) ) |
---|
354 | zs11_21 = zvis11 * akappa(ji,jj-1,1,2) + zdiag |
---|
355 | zs12_21 = -zvis12 * akappa(ji,jj-1,2,1) - zvis21 * akappa(ji,jj-1,1,1) |
---|
356 | zs22_21 = zvis11 * akappa(ji,jj-1,2,2) + zdiag |
---|
357 | zs21_21 = -zvis12 * akappa(ji,jj-1,1,1) - zvis21 * akappa(ji,jj-1,2,1) |
---|
358 | |
---|
359 | zvis11 = 2._wp * zviseta (ji-1,jj) + dm |
---|
360 | zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj) |
---|
361 | zvis12 = zviseta (ji-1,jj) + dm |
---|
362 | zvis21 = zviseta (ji-1,jj) |
---|
363 | zdiag = zvis22 * ( akappa(ji-1,jj,1,2) - akappa(ji-1,jj,2,2) ) |
---|
364 | zs11_12 = zvis11 * akappa(ji-1,jj,1,2) + zdiag |
---|
365 | zs12_12 = -zvis12 * akappa(ji-1,jj,2,1) + zvis21 * akappa(ji-1,jj,1,1) |
---|
366 | zs22_12 = -zvis11 * akappa(ji-1,jj,2,2) + zdiag |
---|
367 | zs21_12 = zvis12 * akappa(ji-1,jj,1,1) - zvis21 * akappa(ji-1,jj,2,1) |
---|
368 | |
---|
369 | zvis11 = 2._wp * zviseta (ji,jj) + dm |
---|
370 | zvis22 = zviszeta(ji,jj) - zviseta(ji,jj) |
---|
371 | zvis12 = zviseta (ji,jj) + dm |
---|
372 | zvis21 = zviseta (ji,jj) |
---|
373 | zdiag = zvis22 * ( akappa(ji,jj,1,2) - akappa(ji,jj,2,2) ) |
---|
374 | zs11_22 = zvis11 * akappa(ji,jj,1,2) + zdiag |
---|
375 | zs12_22 = -zvis12 * akappa(ji,jj,2,1) - zvis21 * akappa(ji,jj,1,1) |
---|
376 | zs22_22 = -zvis11 * akappa(ji,jj,2,2) + zdiag |
---|
377 | zs21_22 = -zvis12 * akappa(ji,jj,1,1) - zvis21 * akappa(ji,jj,2,1) |
---|
378 | |
---|
379 | zc1v(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs11_21 + alambd(ji,jj,2,2,2,2) * zs11_22 & |
---|
380 | & - alambd(ji,jj,2,2,1,1) * zs11_11 - alambd(ji,jj,2,2,1,2) * zs11_12 & |
---|
381 | & - alambd(ji,jj,1,1,2,1) * zs12_21 - alambd(ji,jj,1,1,1,1) * zs12_11 & |
---|
382 | & + alambd(ji,jj,1,1,2,2) * zs12_22 + alambd(ji,jj,1,1,1,2) * zs12_12 & |
---|
383 | & + alambd(ji,jj,1,2,1,1) * zs21_11 + alambd(ji,jj,1,2,2,1) * zs21_21 & |
---|
384 | & + alambd(ji,jj,1,2,1,2) * zs21_12 + alambd(ji,jj,1,2,2,2) * zs21_22 & |
---|
385 | & - alambd(ji,jj,2,1,1,1) * zs22_11 - alambd(ji,jj,2,1,2,1) * zs22_21 & |
---|
386 | & - alambd(ji,jj,2,1,1,2) * zs22_12 - alambd(ji,jj,2,1,2,2) * zs22_22 |
---|
387 | |
---|
388 | zc2v(ji,jj) = + alambd(ji,jj,2,2,2,1) * zs21_21 + alambd(ji,jj,2,2,2,2) * zs21_22 & |
---|
389 | & - alambd(ji,jj,2,2,1,1) * zs21_11 - alambd(ji,jj,2,2,1,2) * zs21_12 & |
---|
390 | & - alambd(ji,jj,1,1,2,1) * zs22_21 - alambd(ji,jj,1,1,1,1) * zs22_11 & |
---|
391 | & + alambd(ji,jj,1,1,2,2) * zs22_22 + alambd(ji,jj,1,1,1,2) * zs22_12 & |
---|
392 | & - alambd(ji,jj,1,2,1,1) * zs11_11 - alambd(ji,jj,1,2,2,1) * zs11_21 & |
---|
393 | & - alambd(ji,jj,1,2,1,2) * zs11_12 - alambd(ji,jj,1,2,2,2) * zs11_22 & |
---|
394 | & + alambd(ji,jj,2,1,1,1) * zs12_11 + alambd(ji,jj,2,1,2,1) * zs12_21 & |
---|
395 | & + alambd(ji,jj,2,1,1,2) * zs12_12 + alambd(ji,jj,2,1,2,2) * zs12_22 |
---|
396 | END DO |
---|
397 | END DO |
---|
398 | |
---|
399 | ! GAUSS-SEIDEL method |
---|
400 | ! ! ================ ! |
---|
401 | iflag: DO jter = 1 , nbitdr ! Relaxation ! |
---|
402 | ! ! ================ ! |
---|
403 | !CDIR NOVERRCHK |
---|
404 | DO jj = k_j1+1, k_jpj-1 |
---|
405 | !CDIR NOVERRCHK |
---|
406 | DO ji = 2, fs_jpim1 ! NO vector opt. |
---|
407 | ! |
---|
408 | ze11 = akappa(ji,jj-1,1,1) * zu_a(ji+1,jj) + akappa(ji,jj-1,1,2) * zv_a(ji+1,jj) |
---|
409 | ze12 = + akappa(ji,jj-1,2,2) * zu_a(ji+1,jj) - akappa(ji,jj-1,2,1) * zv_a(ji+1,jj) |
---|
410 | ze22 = + akappa(ji,jj-1,2,2) * zv_a(ji+1,jj) + akappa(ji,jj-1,2,1) * zu_a(ji+1,jj) |
---|
411 | ze21 = akappa(ji,jj-1,1,1) * zv_a(ji+1,jj) - akappa(ji,jj-1,1,2) * zu_a(ji+1,jj) |
---|
412 | zvis11 = 2._wp * zviseta (ji,jj-1) + dm |
---|
413 | zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1) |
---|
414 | zvis12 = zviseta (ji,jj-1) + dm |
---|
415 | zvis21 = zviseta (ji,jj-1) |
---|
416 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
417 | zs11_21 = zvis11 * ze11 + zdiag |
---|
418 | zs12_21 = zvis12 * ze12 + zvis21 * ze21 |
---|
419 | zs22_21 = zvis11 * ze22 + zdiag |
---|
420 | zs21_21 = zvis12 * ze21 + zvis21 * ze12 |
---|
421 | |
---|
422 | ze11 = akappa(ji-1,jj,1,1) * ( zu_a(ji ,jj+1) - zu_a(ji-1,jj+1) ) & |
---|
423 | & + akappa(ji-1,jj,1,2) * ( zv_a(ji ,jj+1) + zv_a(ji-1,jj+1) ) |
---|
424 | ze12 = + akappa(ji-1,jj,2,2) * ( zu_a(ji-1,jj+1) + zu_a(ji ,jj+1) ) & |
---|
425 | & - akappa(ji-1,jj,2,1) * ( zv_a(ji-1,jj+1) + zv_a(ji ,jj+1) ) |
---|
426 | ze22 = + akappa(ji-1,jj,2,2) * ( zv_a(ji-1,jj+1) + zv_a(ji ,jj+1) ) & |
---|
427 | & + akappa(ji-1,jj,2,1) * ( zu_a(ji-1,jj+1) + zu_a(ji ,jj+1) ) |
---|
428 | ze21 = akappa(ji-1,jj,1,1) * ( zv_a(ji ,jj+1) - zv_a(ji-1,jj+1) ) & |
---|
429 | & - akappa(ji-1,jj,1,2) * ( zu_a(ji ,jj+1) + zu_a(ji-1,jj+1) ) |
---|
430 | zvis11 = 2._wp * zviseta (ji-1,jj) + dm |
---|
431 | zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj) |
---|
432 | zvis12 = zviseta (ji-1,jj) + dm |
---|
433 | zvis21 = zviseta (ji-1,jj) |
---|
434 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
435 | zs11_12 = zvis11 * ze11 + zdiag |
---|
436 | zs12_12 = zvis12 * ze12 + zvis21 * ze21 |
---|
437 | zs22_12 = zvis11 * ze22 + zdiag |
---|
438 | zs21_12 = zvis12 * ze21 + zvis21 * ze12 |
---|
439 | |
---|
440 | ze11 = akappa(ji,jj,1,1) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) - zu_a(ji ,jj+1) ) & |
---|
441 | & + akappa(ji,jj,1,2) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) + zv_a(ji ,jj+1) ) |
---|
442 | ze12 = - akappa(ji,jj,2,2) * ( zu_a(ji+1,jj) - zu_a(ji ,jj+1) - zu_a(ji+1,jj+1) ) & |
---|
443 | & - akappa(ji,jj,2,1) * ( zv_a(ji+1,jj) + zv_a(ji ,jj+1) + zv_a(ji+1,jj+1) ) |
---|
444 | ze22 = - akappa(ji,jj,2,2) * ( zv_a(ji+1,jj) - zv_a(ji ,jj+1) - zv_a(ji+1,jj+1) ) & |
---|
445 | & + akappa(ji,jj,2,1) * ( zu_a(ji+1,jj) + zu_a(ji ,jj+1) + zu_a(ji+1,jj+1) ) |
---|
446 | ze21 = akappa(ji,jj,1,1) * ( zv_a(ji+1,jj) + zv_a(ji+1,jj+1) - zv_a(ji ,jj+1) ) & |
---|
447 | & - akappa(ji,jj,1,2) * ( zu_a(ji+1,jj) + zu_a(ji+1,jj+1) + zu_a(ji ,jj+1) ) |
---|
448 | zvis11 = 2._wp * zviseta (ji,jj) + dm |
---|
449 | zvis22 = zviszeta(ji,jj) - zviseta(ji,jj) |
---|
450 | zvis12 = zviseta (ji,jj) + dm |
---|
451 | zvis21 = zviseta (ji,jj) |
---|
452 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
453 | zs11_22 = zvis11 * ze11 + zdiag |
---|
454 | zs12_22 = zvis12 * ze12 + zvis21 * ze21 |
---|
455 | zs22_22 = zvis11 * ze22 + zdiag |
---|
456 | zs21_22 = zvis12 * ze21 + zvis21 * ze12 |
---|
457 | |
---|
458 | ! 2nd part |
---|
459 | ze11 = akappa(ji-1,jj-1,1,1) * ( zu_a(ji ,jj-1) - zu_a(ji-1,jj-1) - zu_a(ji-1,jj) ) & |
---|
460 | & + akappa(ji-1,jj-1,1,2) * ( zv_a(ji ,jj-1) + zv_a(ji-1,jj-1) + zv_a(ji-1,jj) ) |
---|
461 | ze12 = - akappa(ji-1,jj-1,2,2) * ( zu_a(ji-1,jj-1) + zu_a(ji ,jj-1) - zu_a(ji-1,jj) ) & |
---|
462 | & - akappa(ji-1,jj-1,2,1) * ( zv_a(ji-1,jj-1) + zv_a(ji ,jj-1) + zv_a(ji-1,jj) ) |
---|
463 | ze22 = - akappa(ji-1,jj-1,2,2) * ( zv_a(ji-1,jj-1) + zv_a(ji ,jj-1) - zv_a(ji-1,jj) ) & |
---|
464 | & + akappa(ji-1,jj-1,2,1) * ( zu_a(ji-1,jj-1) + zu_a(ji ,jj-1) + zu_a(ji-1,jj) ) |
---|
465 | ze21 = akappa(ji-1,jj-1,1,1) * ( zv_a(ji ,jj-1) - zv_a(ji-1,jj-1) - zv_a(ji-1,jj) ) & |
---|
466 | & - akappa(ji-1,jj-1,1,2) * ( zu_a(ji ,jj-1) + zu_a(ji-1,jj-1) + zu_a(ji-1,jj) ) |
---|
467 | zvis11 = 2._wp * zviseta (ji-1,jj-1) + dm |
---|
468 | zvis22 = zviszeta(ji-1,jj-1) - zviseta(ji-1,jj-1) |
---|
469 | zvis12 = zviseta (ji-1,jj-1) + dm |
---|
470 | zvis21 = zviseta (ji-1,jj-1) |
---|
471 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
472 | zs11_11 = zvis11 * ze11 + zdiag |
---|
473 | zs12_11 = zvis12 * ze12 + zvis21 * ze21 |
---|
474 | zs22_11 = zvis11 * ze22 + zdiag |
---|
475 | zs21_11 = zvis12 * ze21 + zvis21 * ze12 |
---|
476 | |
---|
477 | ze11 = akappa(ji,jj-1,1,1) * ( zu_a(ji+1,jj-1) - zu_a(ji ,jj-1) ) & |
---|
478 | & + akappa(ji,jj-1,1,2) * ( zv_a(ji+1,jj-1) + zv_a(ji ,jj-1) ) |
---|
479 | ze12 = - akappa(ji,jj-1,2,2) * ( zu_a(ji ,jj-1) + zu_a(ji+1,jj-1) ) & |
---|
480 | & - akappa(ji,jj-1,2,1) * ( zv_a(ji ,jj-1) + zv_a(ji+1,jj-1) ) |
---|
481 | ze22 = - akappa(ji,jj-1,2,2) * ( zv_a(ji ,jj-1) + zv_a(ji+1,jj-1) ) & |
---|
482 | & + akappa(ji,jj-1,2,1) * ( zu_a(ji ,jj-1) + zu_a(ji+1,jj-1) ) |
---|
483 | ze21 = akappa(ji,jj-1,1,1) * ( zv_a(ji+1,jj-1) - zv_a(ji ,jj-1) ) & |
---|
484 | & - akappa(ji,jj-1,1,2) * ( zu_a(ji+1,jj-1) + zu_a(ji ,jj-1) ) |
---|
485 | zvis11 = 2._wp * zviseta (ji,jj-1) + dm |
---|
486 | zvis22 = zviszeta(ji,jj-1) - zviseta(ji,jj-1) |
---|
487 | zvis12 = zviseta (ji,jj-1) + dm |
---|
488 | zvis21 = zviseta (ji,jj-1) |
---|
489 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
490 | zs11_21 = zs11_21 + zvis11 * ze11 + zdiag |
---|
491 | zs12_21 = zs12_21 + zvis12 * ze12 + zvis21 * ze21 |
---|
492 | zs22_21 = zs22_21 + zvis11 * ze22 + zdiag |
---|
493 | zs21_21 = zs21_21 + zvis12 * ze21 + zvis21 * ze12 |
---|
494 | |
---|
495 | ze11 = - akappa(ji-1,jj,1,1) * zu_a(ji-1,jj) + akappa(ji-1,jj,1,2) * zv_a(ji-1,jj) |
---|
496 | ze12 = - akappa(ji-1,jj,2,2) * zu_a(ji-1,jj) - akappa(ji-1,jj,2,1) * zv_a(ji-1,jj) |
---|
497 | ze22 = - akappa(ji-1,jj,2,2) * zv_a(ji-1,jj) + akappa(ji-1,jj,2,1) * zu_a(ji-1,jj) |
---|
498 | ze21 = - akappa(ji-1,jj,1,1) * zv_a(ji-1,jj) - akappa(ji-1,jj,1,2) * zu_a(ji-1,jj) |
---|
499 | zvis11 = 2._wp * zviseta (ji-1,jj) + dm |
---|
500 | zvis22 = zviszeta(ji-1,jj) - zviseta(ji-1,jj) |
---|
501 | zvis12 = zviseta (ji-1,jj) + dm |
---|
502 | zvis21 = zviseta (ji-1,jj) |
---|
503 | zdiag = zvis22 * ( ze11 + ze22 ) |
---|
504 | zs11_12 = zs11_12 + zvis11 * ze11 + zdiag |
---|
505 | zs12_12 = zs12_12 + zvis12 * ze12 + zvis21 * ze21 |
---|
506 | zs22_12 = zs22_12 + zvis11 * ze22 + zdiag |
---|
507 | zs21_12 = zs21_12 + zvis12 * ze21 + zvis21 * ze12 |
---|
508 | |
---|
509 | zd1 = + alambd(ji,jj,2,2,2,1) * zs11_21 + alambd(ji,jj,2,2,2,2) * zs11_22 & |
---|
510 | & - alambd(ji,jj,2,2,1,1) * zs11_11 - alambd(ji,jj,2,2,1,2) * zs11_12 & |
---|
511 | & - alambd(ji,jj,1,1,2,1) * zs12_21 - alambd(ji,jj,1,1,1,1) * zs12_11 & |
---|
512 | & + alambd(ji,jj,1,1,2,2) * zs12_22 + alambd(ji,jj,1,1,1,2) * zs12_12 & |
---|
513 | & + alambd(ji,jj,1,2,1,1) * zs21_11 + alambd(ji,jj,1,2,2,1) * zs21_21 & |
---|
514 | & + alambd(ji,jj,1,2,1,2) * zs21_12 + alambd(ji,jj,1,2,2,2) * zs21_22 & |
---|
515 | & - alambd(ji,jj,2,1,1,1) * zs22_11 - alambd(ji,jj,2,1,2,1) * zs22_21 & |
---|
516 | & - alambd(ji,jj,2,1,1,2) * zs22_12 - alambd(ji,jj,2,1,2,2) * zs22_22 |
---|
517 | |
---|
518 | zd2 = + alambd(ji,jj,2,2,2,1) * zs21_21 + alambd(ji,jj,2,2,2,2) * zs21_22 & |
---|
519 | & - alambd(ji,jj,2,2,1,1) * zs21_11 - alambd(ji,jj,2,2,1,2) * zs21_12 & |
---|
520 | & - alambd(ji,jj,1,1,2,1) * zs22_21 - alambd(ji,jj,1,1,1,1) * zs22_11 & |
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521 | & + alambd(ji,jj,1,1,2,2) * zs22_22 + alambd(ji,jj,1,1,1,2) * zs22_12 & |
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522 | & - alambd(ji,jj,1,2,1,1) * zs11_11 - alambd(ji,jj,1,2,2,1) * zs11_21 & |
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523 | & - alambd(ji,jj,1,2,1,2) * zs11_12 - alambd(ji,jj,1,2,2,2) * zs11_22 & |
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524 | & + alambd(ji,jj,2,1,1,1) * zs12_11 + alambd(ji,jj,2,1,2,1) * zs12_21 & |
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525 | & + alambd(ji,jj,2,1,1,2) * zs12_12 + alambd(ji,jj,2,1,2,2) * zs12_22 |
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526 | |
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527 | zur = zu_a(ji,jj) - u_oce(ji,jj) |
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528 | zvr = zv_a(ji,jj) - v_oce(ji,jj) |
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529 | !!!! |
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530 | zmod = SQRT( zur*zur + zvr*zvr ) * ( 1._wp - zfrld(ji,jj) ) |
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531 | za = rhoco * zmod |
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532 | !!!! |
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533 | !!gm chg resul za = rhoco * SQRT( zur*zur + zvr*zvr ) * ( 1._wp - zfrld(ji,jj) ) |
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534 | zac = za * cangvg |
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535 | zmpzas = alpha * zcorl(ji,jj) + za * zsang(ji,jj) |
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536 | zmassdt = zusdtp * zmass(ji,jj) |
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537 | zcorlal = ( 1._wp - alpha ) * zcorl(ji,jj) |
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538 | |
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539 | za1 = zmassdt * zu0(ji,jj) + zcorlal * zv0(ji,jj) + za1ct(ji,jj) & |
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540 | & + za * ( cangvg * u_oce(ji,jj) - zsang(ji,jj) * v_oce(ji,jj) ) |
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541 | za2 = zmassdt * zv0(ji,jj) - zcorlal * zu0(ji,jj) + za2ct(ji,jj) & |
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542 | & + za * ( cangvg * v_oce(ji,jj) + zsang(ji,jj) * u_oce(ji,jj) ) |
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543 | zb1 = zmassdt + zac - zc1u(ji,jj) |
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544 | zb2 = zmpzas - zc2u(ji,jj) |
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545 | zc1 = zmpzas + zc1v(ji,jj) |
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546 | zc2 = zmassdt + zac - zc2v(ji,jj) |
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547 | zdeter = zc1 * zb2 + zc2 * zb1 |
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548 | zden = SIGN( rone, zdeter) / MAX( epsd , ABS( zdeter ) ) |
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549 | zunw = ( ( za1 + zd1 ) * zc2 + ( za2 + zd2 ) * zc1 ) * zden |
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550 | zvnw = ( ( za2 + zd2 ) * zb1 - ( za1 + zd1 ) * zb2 ) * zden |
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551 | zmask = ( 1._wp - MAX( rzero, SIGN( rone , 1._wp - zmass(ji,jj) ) ) ) * tmu(ji,jj) |
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552 | |
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553 | zu_n(ji,jj) = ( zu_a(ji,jj) + om * ( zunw - zu_a(ji,jj) ) * tmu(ji,jj) ) * zmask |
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554 | zv_n(ji,jj) = ( zv_a(ji,jj) + om * ( zvnw - zv_a(ji,jj) ) * tmu(ji,jj) ) * zmask |
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555 | END DO |
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556 | END DO |
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557 | |
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558 | CALL lbc_lnk( zu_n(:,1:jpj), 'I', -1. ) |
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559 | CALL lbc_lnk( zv_n(:,1:jpj), 'I', -1. ) |
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560 | |
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561 | #if defined key_agrif |
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562 | ! copy the boundary value from u_ice_nst and v_ice_nst to u_ice and v_ice |
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563 | ! before next interations |
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564 | CALL agrif_rhg_lim2(zu_n,zv_n) |
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565 | #endif |
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566 | |
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567 | ! Test of Convergence |
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568 | DO jj = k_j1+1 , k_jpj-1 |
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569 | zresr(:,jj) = MAX( ABS( zu_a(:,jj) - zu_n(:,jj) ) , ABS( zv_a(:,jj) - zv_n(:,jj) ) ) |
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570 | END DO |
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571 | zresm = MAXVAL( zresr(1:jpi,k_j1+1:k_jpj-1) ) |
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572 | !!!! this should be faster on scalar processor |
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573 | ! zresm = MAXVAL( MAX( ABS( zu_a(1:jpi,k_j1+1:k_jpj-1) - zu_n(1:jpi,k_j1+1:k_jpj-1) ), & |
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574 | ! & ABS( zv_a(1:jpi,k_j1+1:k_jpj-1) - zv_n(1:jpi,k_j1+1:k_jpj-1) ) ) ) |
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575 | !!!! |
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576 | IF( lk_mpp ) CALL mpp_max( zresm ) ! max over the global domain |
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577 | |
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578 | DO jj = k_j1, k_jpj |
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579 | zu_a(:,jj) = zu_n(:,jj) |
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580 | zv_a(:,jj) = zv_n(:,jj) |
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581 | END DO |
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582 | |
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583 | IF( zresm <= resl ) EXIT iflag |
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584 | |
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585 | ! ! ================ ! |
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586 | END DO iflag ! end Relaxation ! |
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587 | ! ! ================ ! |
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588 | |
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589 | IF( zindu == 0 ) THEN ! even iteration |
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590 | DO jj = k_j1 , k_jpj-1 |
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591 | zu0(:,jj) = zu_a(:,jj) |
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592 | zv0(:,jj) = zv_a(:,jj) |
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593 | END DO |
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594 | ENDIF |
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595 | ! ! ==================== ! |
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596 | END DO ! end loop over iter ! |
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597 | ! ! ==================== ! |
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598 | |
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599 | u_ice(:,:) = zu_a(:,1:jpj) |
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600 | v_ice(:,:) = zv_a(:,1:jpj) |
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601 | |
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602 | IF(ln_ctl) THEN |
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603 | WRITE(charout,FMT="('lim_rhg : res =',D23.16, ' iter =',I4)") zresm, jter |
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604 | CALL prt_ctl_info(charout) |
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605 | CALL prt_ctl(tab2d_1=u_ice, clinfo1=' lim_rhg : u_ice :', tab2d_2=v_ice, clinfo2=' v_ice :') |
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606 | ENDIF |
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607 | |
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608 | CALL wrk_dealloc( jpi,jpj, zfrld, zmass, zcorl, za1ct, za2ct, zresr ) |
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609 | CALL wrk_dealloc( jpi,jpj, zc1u , zc1v , zc2u , zc2v , zsang, zpice ) |
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610 | CALL wrk_dealloc( jpi,jpj+2, zu0, zv0, zu_n, zv_n, zu_a, zv_a, zviszeta, zviseta, kjstart = 0 ) |
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611 | CALL wrk_dealloc( jpi,jpj+2, zzfrld, zztms, zi1, zi2, zmasst, zpresh, kjstart = 0 ) |
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612 | |
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613 | END SUBROUTINE lim_rhg_2 |
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614 | |
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615 | #else |
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616 | !!---------------------------------------------------------------------- |
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617 | !! Default option Dummy module NO VP & LIM-2 sea-ice model |
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618 | !!---------------------------------------------------------------------- |
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619 | CONTAINS |
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620 | SUBROUTINE lim_rhg_2( k1 , k2 ) ! Dummy routine |
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621 | WRITE(*,*) 'lim_rhg_2: You should not have seen this print! error?', k1, k2 |
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622 | END SUBROUTINE lim_rhg_2 |
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623 | #endif |
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624 | |
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625 | !!============================================================================== |
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626 | END MODULE limrhg_2 |
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