1 | CCC $Header$ |
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2 | SUBROUTINE trcexp(kt) |
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3 | #if defined key_passivetrc && defined key_trc_lobster1 |
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4 | CCC--------------------------------------------------------------------- |
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5 | CCC |
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6 | CCC ROUTINE trcexp |
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7 | CCC ****************** |
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8 | CCC |
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9 | CC |
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10 | CC PURPOSE. |
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11 | CC -------- |
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12 | CC *TRCEXP* MODELS EXPORT OF BIOGENIC MATTER (POC ''SOFT |
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13 | CC TISSUE'') AND ITS DISTRIBUTION IN WATER COLUMN |
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14 | CC |
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15 | CC METHOD. |
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16 | CC ------- |
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17 | CC IN THE SURFACE LAYER POC IS PRODUCED ACCORDING TO |
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18 | CC NURTRIENTS AVAILABLE AND GROWTH CONDITIONS. NUTRIENT UPTAKE |
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19 | CC KINETICS FOLLOW MICHAELIS-MENTON FORMULATION. |
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20 | CC THE TOTAL PARTICLE AMOUNT PRODUCED, IS DISTRIBUTED IN THE WATER |
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21 | CC COLUMN BELOW THE SURFACE LAYER. |
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22 | CC |
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23 | CC EXTERNALS. |
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24 | CC ---------- |
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25 | CC NONE. |
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26 | CC |
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27 | CC REFERENCE. |
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28 | CC ---------- |
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29 | CC |
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30 | CC MODIFICATIONS: |
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31 | CC -------------- |
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32 | CC original : 1999 O. Aumont |
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33 | CC modifications : 1999 C. Le Quere |
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34 | CC additions : 01-05 (O. Aumont, E. Kestenare): |
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35 | CC add sediment computations |
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36 | CC : 05-06 (AS. Kremeur) new temporal integration for sedpoc |
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37 | CC --------------------------------------------------------------------- |
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38 | c ------ |
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39 | CC parameters and commons |
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40 | CC ====================== |
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41 | CDIR$ NOLIST |
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42 | USE oce_trc |
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43 | USE trp_trc |
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44 | USE sms |
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45 | USE lbclnk |
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46 | USE trc |
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47 | USE trctrp_lec |
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48 | |
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49 | IMPLICIT NONE |
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50 | CDIR$ LIST |
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51 | CC---------------------------------------------------------------------- |
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52 | CC local declarations |
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53 | CC ================== |
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54 | C |
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55 | INTEGER kt |
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56 | INTEGER ji, jj, jk, zkbot(jpi,jpj) |
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57 | REAL zwork(jpi,jpj), zgeolpoc, zfact |
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58 | CC---------------------------------------------------------------------- |
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59 | CC statement functions |
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60 | CC =================== |
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61 | CDIR$ NOLIST |
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62 | #include "domzgr_substitute.h90" |
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63 | CDIR$ LIST |
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64 | C |
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65 | C VERTICAL DISTRIBUTION OF NEWLY PRODUCED BIOGENIC |
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66 | C POC IN THE WATER COLUMN |
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67 | C (PARTS OF NEWLY FORMED MATTER REMAINING IN THE DIFFERENT |
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68 | C LAYERS IS DETERMINED BY DMIN3 DEFINED IN common.passivetrc.*.h |
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69 | C ---------------------------------------------------------------------- |
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70 | C |
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71 | C |
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72 | DO jk = 1,jpkm1 |
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73 | DO jj = 2,jpjm1 |
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74 | DO ji = 2,jpim1 |
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75 | tra(ji,jj,jk,jpno3) = tra(ji,jj,jk,jpno3)+ |
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76 | & (1./fse3t(ji,jj,jk))* |
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77 | & dmin3(ji,jj,jk) *fbod(ji,jj) |
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78 | ENDDO |
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79 | ENDDO |
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80 | ENDDO |
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81 | C |
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82 | C Find the last level of the water column |
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83 | C Compute fluxes due to sinking particles (slow) |
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84 | C |
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85 | zkbot = jpk |
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86 | zwork = 0. |
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87 | C |
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88 | C |
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89 | DO jk = 1,jpkm1 |
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90 | DO jj = 2,jpjm1 |
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91 | DO ji = 2,jpim1 |
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92 | |
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93 | IF ( tmask(ji,jj,jk) .eq. 1 .and. |
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94 | . tmask(ji,jj,jk+1). eq. 0 ) THEN |
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95 | zkbot(ji,jj) = jk |
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96 | zwork(ji,jj) = vsed * trn(ji,jj,jk,jpdet) |
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97 | ENDIF |
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98 | |
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99 | ENDDO |
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100 | ENDDO |
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101 | ENDDO |
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102 | C |
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103 | C Initialization |
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104 | zgeolpoc = 0. |
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105 | |
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106 | C Release of nutrients from the "simple" sediment |
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107 | C |
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108 | DO jj = 2,jpjm1 |
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109 | DO ji = 2,jpim1 |
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110 | tra(ji,jj,zkbot(ji,jj),jpno3) = |
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111 | . tra(ji,jj,zkbot(ji,jj),jpno3) + |
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112 | . sedlam*sedpocn(ji,jj)/fse3t(ji,jj,zkbot(ji,jj)) |
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113 | |
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114 | C Deposition of organic matter in the sediment |
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115 | C |
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116 | zgeolpoc = zgeolpoc + sedlostpoc*sedpocn(ji,jj)* |
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117 | . e1t(ji,jj)*e2t(ji,jj) |
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118 | |
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119 | sedpoca(ji,jj) = zwork(ji,jj)*rdt + |
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120 | . dminl(ji,jj)*fbod(ji,jj)*rdt - |
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121 | . sedlam*sedpocn(ji,jj)*rdt - |
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122 | . sedlostpoc*sedpocn(ji,jj)*rdt |
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123 | C |
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124 | ENDDO |
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125 | ENDDO |
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126 | C |
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127 | DO jj = 2,jpjm1 |
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128 | DO ji = 2,jpim1 |
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129 | tra(ji,jj,1,jpno3) = tra(ji,jj,1,jpno3) + zgeolpoc* |
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130 | . cmask(ji,jj)/areacot/fse3t(ji,jj,1) |
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131 | ENDDO |
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132 | ENDDO |
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133 | |
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134 | CALL lbc_lnk( sedpocn, 'T', 1. ) |
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135 | |
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136 | C Oa & Ek: diagnostics depending on jpdia2d |
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137 | C left as example |
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138 | # if defined key_trc_diaadd |
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139 | do jj=1,jpj |
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140 | do ji=1,jpi |
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141 | trc2d(ji,jj,19)=sedpocn(ji,jj) |
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142 | end do |
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143 | end do |
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144 | # endif |
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145 | |
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146 | c ! 1. Leap-frog scheme (only in explicit case, otherwise the |
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147 | c ! ------------------- time stepping is already done in trczdf) |
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148 | IF(l_trczdf_exp .AND. (ln_trcadv_cen2 .OR. ln_trcadv_tvd)) THEN |
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149 | zfact = 2. * rdttra(jk) * FLOAT(ndttrc) |
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150 | IF( neuler == 0 .AND. kt == nittrc000 ) |
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151 | . zfact = rdttra(jk) * FLOAT(ndttrc) |
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152 | sedpoca(:,:) = ( sedpocb(:,:) + zfact * sedpoca(:,:) ) |
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153 | ENDIF |
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154 | |
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155 | |
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156 | c ! 2. Time filter and swap of arrays |
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157 | c ! --------------------------------- |
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158 | IF ( ln_trcadv_cen2 .OR. ln_trcadv_tvd ) THEN |
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159 | IF( neuler == 0 .AND. kt == nittrc000 ) THEN |
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160 | DO jj = 1, jpj |
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161 | DO ji = 1, jpi |
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162 | sedpocb(ji,jj) = sedpocn(ji,jj) |
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163 | sedpocn(ji,jj) = sedpoca(ji,jj) |
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164 | sedpoca(ji,jj) = 0. |
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165 | END DO |
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166 | END DO |
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167 | ELSE |
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168 | DO jj = 1, jpj |
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169 | DO ji = 1, jpi |
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170 | sedpocb(ji,jj) = atfp*(sedpocb(ji,jj)+sedpoca(ji,jj)) |
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171 | . + atfp1 * sedpocn(ji,jj) |
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172 | sedpocn(ji,jj) = sedpoca(ji,jj) |
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173 | sedpoca(ji,jj) = 0. |
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174 | END DO |
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175 | END DO |
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176 | ENDIF |
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177 | |
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178 | ELSE |
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179 | c ! case of smolar scheme or muscl |
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180 | DO jj = 1, jpj |
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181 | DO ji = 1, jpi |
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182 | sedpocb(ji,jj) = sedpoca(ji,jj) |
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183 | sedpocn(ji,jj) = sedpoca(ji,jj) |
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184 | sedpoca(ji,jj) = 0. |
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185 | END DO |
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186 | END DO |
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187 | |
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188 | ENDIF |
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189 | |
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190 | #endif |
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191 | RETURN |
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192 | END |
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