1 | SUBROUTINE filling (pfild, pworka, pworkb, pworkc, |
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2 | $ plon, plat, klon, klat, kmask, kmesh, |
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3 | $ kunit, cdfic, cdmet) |
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4 | C**** |
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5 | C ***************************** |
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6 | C * OASIS ROUTINE - LEVEL 3 * |
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7 | C * ------------- ------- * |
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8 | C ***************************** |
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9 | C |
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10 | C**** *filling* - Fill up (and smooth or not) regional field with climatology |
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11 | C |
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12 | C |
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13 | C Purpose: |
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14 | C ------- |
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15 | C Performs smooth or abrupt blending of a regional data set with a |
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16 | C global one for a Sea Surface Temperature or Sea Ice Extent field. |
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17 | C The frequency of the global set can be interannual monthly, |
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18 | C climatological monthly or yearly. Sea-ice transitions are treated |
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19 | C specifically: the ice is supposed to form or disappear on the first |
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20 | C day of the month. |
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21 | C |
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22 | C N.B : The SST climatology must be in celsius. If not |
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23 | C one has to change the value of local variable zmerg |
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24 | C |
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25 | C** Interface: |
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26 | C --------- |
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27 | C *CALL* *filling(pfild, pworka, pworkb, pworkc, klon, klat, |
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28 | C kmask, kmesh, kunit, cdfic, cdmet)* |
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29 | C |
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30 | C Input: |
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31 | C ----- |
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32 | C pfild : field to be completed (real 2D) |
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33 | C plon : grid longitude array (real 2D) |
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34 | C plat : grid latitude array (real 2D) |
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35 | C klon : number of longitude (integer) |
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36 | C klat : number of latitude (integer) |
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37 | C kmask : mask array (integer 2D) |
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38 | C kmesh : overlapped neighbors array (integer 2D) |
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39 | C kunit : climatological data filename logical unit (integer) |
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40 | C cdfic : climatological data filename (character) |
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41 | C cdmet : filling method (character) |
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42 | C |
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43 | C Output: |
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44 | C ------ |
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45 | C pfild : field completed (real 2D) |
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46 | C |
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47 | C Workspace: |
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48 | C --------- |
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49 | C These are work arrays passed as arguments: |
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50 | C pworka, pworkb, pworkc |
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51 | C |
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52 | C Externals: |
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53 | C --------- |
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54 | C None |
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55 | C |
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56 | C Reference: |
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57 | C --------- |
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58 | C See OASIS manual (1995) |
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59 | C |
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60 | C History: |
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61 | C ------- |
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62 | C Version Programmer Date Description |
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63 | C ------- ---------- ---- ----------- |
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64 | C 1.0 L. Terray 94/01/01 created |
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65 | C 1.1 L. Terray 94/10/01 modified: lecture of climagrd |
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66 | C 2.0beta L. Terray 95/12/10 modified: new structure |
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67 | C 2.0 L. Terray 96/02/01 modified: change on rewind() |
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68 | C 2.1 L. Terray 96/09/09 modified: flux correction term |
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69 | C 2.3 S. Valcke 99/04/30 added: printing levels |
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70 | C |
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71 | C %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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72 | C |
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73 | C* ----------------Include files and USE of modules--------------------------- |
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74 | C |
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75 | USE mod_kinds_oasis |
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76 | USE mod_parameter |
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77 | USE mod_analysis |
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78 | USE mod_coast |
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79 | USE mod_calendar |
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80 | USE mod_unit |
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81 | USE mod_smooth |
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82 | USE mod_printing |
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83 | C |
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84 | C* ---------------------------- Argument declarations---------------------- |
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85 | C |
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86 | REAL (kind=ip_realwp_p) pfild(klon, klat), plon(klon, klat), |
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87 | $ plat(klon, klat) |
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88 | REAL (kind=ip_realwp_p) pworka(klon, klat), pworkb(klon, klat) |
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89 | REAL (kind=ip_realwp_p) pworkc(klon, klat) |
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90 | INTEGER (kind=ip_intwp_p) kmask(klon,klat), kmesh(klon, klat) |
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91 | CHARACTER*8 cdmet, cdfic |
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92 | C |
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93 | C* ---------------------------- Local declarations ---------------------- |
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94 | C |
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95 | CHARACTER*3 clsmooth, clfield |
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96 | CHARACTER*2 clclim |
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97 | C |
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98 | C* ---------------------------- Poema verses ---------------------------- |
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99 | C |
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100 | C %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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101 | C |
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102 | C* 1. Initialization |
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103 | C -------------- |
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104 | C |
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105 | IF (nlogprt .GE. 2) THEN |
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106 | WRITE (UNIT = nulou,FMT = *) ' ' |
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107 | WRITE (UNIT = nulou,FMT = *) ' ' |
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108 | WRITE (UNIT = nulou,FMT = *) |
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109 | $ ' ROUTINE filling - Level 3' |
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110 | WRITE (UNIT = nulou,FMT = *) |
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111 | $ ' *************** *******' |
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112 | WRITE (UNIT = nulou,FMT = *) ' ' |
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113 | WRITE (UNIT = nulou,FMT = *) |
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114 | $ ' Filling and smoothing of field with climatology' |
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115 | WRITE (UNIT = nulou,FMT = *) ' ' |
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116 | WRITE (UNIT = nulou,FMT = *) ' ' |
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117 | ENDIF |
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118 | C |
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119 | C* initialize error flag for error routine |
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120 | C |
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121 | iflag = 0 |
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122 | C |
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123 | C* Get smoothing and time info |
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124 | C |
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125 | clsmooth = cdmet(1:3) |
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126 | clfield = cdmet(4:6) |
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127 | clclim = cdmet(7:8) |
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128 | C |
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129 | C* Get congelation temperature for SST and SIE treatment. |
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130 | C |
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131 | zmerg = -1.93 |
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132 | C |
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133 | C |
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134 | C* 2. Getting climatological or interannual field |
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135 | C ------------------------------------------- |
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136 | C |
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137 | C* Monthly climatology |
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138 | C |
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139 | IF (nlogprt .GE. 2) THEN |
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140 | CALL prcout |
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141 | $ ('Complementary data file is file =', cdfic, 1) |
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142 | ENDIF |
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143 | IF (clclim .EQ. 'SE' .OR. clclim .EQ. 'MO') THEN |
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144 | IF (nlogprt .GE. 2) THEN |
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145 | WRITE (UNIT = nulou,FMT = *) ' ' |
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146 | ENDIF |
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147 | C |
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148 | C* Monthly climatology |
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149 | C |
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150 | IF (clclim .EQ. 'SE') THEN |
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151 | IF (nlogprt .GE. 2) THEN |
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152 | CALL prtout |
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153 | $ ('Monthly records skipped in climatology file |
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154 | $ nsrec =', nsrec, 1) |
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155 | ENDIF |
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156 | C |
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157 | C* Read the right records |
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158 | C |
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159 | REWIND kunit |
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160 | IF (nsrec .eq. 1) THEN |
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161 | READ (kunit) pworka |
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162 | READ (kunit) pworkb |
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163 | ELSEIF (nsrec .gt. 1 .and. nsrec .lt. 12) THEN |
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164 | DO 210 ji = 1, nsrec - 1 |
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165 | READ (kunit) pworka |
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166 | 210 CONTINUE |
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167 | READ (kunit) pworka |
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168 | READ (kunit) pworkb |
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169 | ELSEIF (nsrec .eq. 12 .or. nsrec .eq. 0) THEN |
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170 | DO 220 ji = 1, 11 |
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171 | READ (kunit) pworka |
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172 | 220 CONTINUE |
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173 | READ (kunit) pworka |
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174 | REWIND kunit |
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175 | READ (kunit) pworkb |
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176 | ELSE |
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177 | WRITE (UNIT = nulou,FMT = *) ' ***WARNING***' |
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178 | WRITE (UNIT = nulou,FMT = *) |
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179 | $ ' ===>>> : wrong value for nsrec ' |
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180 | WRITE (UNIT = nulou,FMT = *) |
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181 | $ ' ====== ===== ' |
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182 | WRITE (UNIT = nulou,FMT = *) ' ' |
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183 | WRITE (UNIT = nulou,FMT = *) |
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184 | $ ' Variable nsrec = ',nsrec |
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185 | WRITE (UNIT = nulou,FMT = *) |
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186 | $ ' We STOP !!! Check value for variable nsrec ' |
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187 | CALL HALTE ('STOP in filling') |
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188 | ENDIF |
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189 | C |
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190 | C* Monthly interannual data |
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191 | C |
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192 | ELSE IF(clclim .EQ. 'MO') THEN |
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193 | IF (nlogprt .GE. 2) THEN |
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194 | CALL prtout |
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195 | $ ('Monthly records skipped in interannual file |
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196 | $ nmrec =', nmrec, 1) |
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197 | ENDIF |
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198 | C |
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199 | C* Read the right records |
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200 | C |
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201 | REWIND kunit |
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202 | IF (nmrec .eq. 0) THEN |
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203 | READ (kunit) pworka |
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204 | READ (kunit) pworkb |
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205 | ELSEIF (nmrec .ge. 1) THEN |
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206 | DO 230 ji = 1, nmrec |
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207 | READ (kunit) pworka |
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208 | 230 CONTINUE |
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209 | READ (kunit) pworka |
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210 | READ (kunit) pworkb |
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211 | ENDIF |
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212 | ENDIF |
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213 | C |
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214 | C* Get all coefficients for time linear interpolation |
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215 | C |
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216 | zpoid1 = FLOAT(njtwo - njnow) / FLOAT(njtwo - njone) |
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217 | zpoid2 = 1.0 - zpoid1 |
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218 | zpoib1 = FLOAT(ndtwo - njnow) / FLOAT(ndtwo - ndone) |
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219 | zpoib2 = 1.0 - zpoib1 |
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220 | C |
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221 | C* Get climatological field for current day |
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222 | C |
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223 | C* Specific treatment for SST and SIE due to freezing temperature |
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224 | C In both cases, one reads the temperature file and looks at |
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225 | C sea-ice transitions. One makes the assumption that the ice is |
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226 | C formed or disappears on the first of the month. |
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227 | C |
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228 | DO 240 jj = 1, klat |
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229 | DO 250 ji = 1, klon |
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230 | C |
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231 | C* General case |
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232 | C |
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233 | pworkc(ji,jj) = zpoid1 * pworka(ji,jj) + |
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234 | $ zpoid2 * pworkb(ji,jj) |
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235 | C |
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236 | C* If field is SST |
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237 | C |
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238 | IF (clfield .EQ. 'SST') THEN |
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239 | C |
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240 | C* Sea Ice to Sea |
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241 | C |
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242 | IF (pworka(ji,jj) .LE. zmerg .AND. |
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243 | $ pworkb(ji,jj) .GT. zmerg) THEN |
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244 | IF (njnow .GT. 15) THEN |
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245 | CONTINUE |
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246 | ELSE |
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247 | pworkc(ji,jj) = zmerg * zpoib1 + |
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248 | $ pworkb(ji,jj) * zpoib2 |
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249 | ENDIF |
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250 | ENDIF |
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251 | C |
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252 | C* Sea to Sea Ice |
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253 | C |
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254 | IF (pworka(ji,jj) .GT. zmerg .AND. |
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255 | $ pworkb(ji,jj) .LE. zmerg) THEN |
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256 | IF (njnow .GT. 15) THEN |
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257 | pworkc(ji,jj) = pworka(ji,jj) * zpoib1 + |
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258 | $ zmerg * zpoib2 |
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259 | ENDIF |
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260 | ENDIF |
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261 | C |
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262 | C* Sea to Sea |
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263 | C |
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264 | IF (pworka(ji,jj) .GT. zmerg .AND. |
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265 | $ pworkb(ji,jj) .GT. zmerg) THEN |
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266 | pworkc(ji,jj) = zpoid1 * pworka(ji,jj) + |
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267 | $ zpoid2 * pworkb(ji,jj) |
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268 | ENDIF |
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269 | ENDIF |
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270 | C |
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271 | C* If field is SIE |
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272 | C |
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273 | IF (clfield .EQ. 'SIE') THEN |
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274 | C |
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275 | C* Sea Ice to Sea Ice |
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276 | C |
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277 | IF (pworka(ji,jj) .LE. zmerg .AND. |
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278 | $ pworkb(ji,jj) .LE. zmerg) THEN |
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279 | pworkc(ji,jj) = 1.0 |
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280 | ENDIF |
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281 | C |
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282 | C* Sea Ice to Sea |
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283 | C |
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284 | IF (pworka(ji,jj) .LE. zmerg .AND. |
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285 | $ pworkb(ji,jj) .GT. zmerg) THEN |
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286 | IF (njnow .gt. 15) THEN |
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287 | pworkc(ji,jj) = 1.0 |
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288 | ELSE |
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289 | pworkc(ji,jj) = 0.0 |
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290 | ENDIF |
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291 | ENDIF |
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292 | C |
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293 | C* Sea to Sea Ice |
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294 | C |
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295 | IF (pworka(ji,jj) .GT. zmerg .AND. |
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296 | $ pworkb(ji,jj) .LE. zmerg) THEN |
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297 | IF (njnow .gt. 15) THEN |
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298 | pworkc(ji,jj) = 0.0 |
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299 | ELSEIF (njnow .eq. 1) THEN |
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300 | pworkc(ji,jj) = 2.0 |
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301 | ELSE |
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302 | pworkc(ji,jj) = 1.0 |
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303 | ENDIF |
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304 | ENDIF |
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305 | C |
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306 | C* Sea to Sea |
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307 | C |
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308 | IF (pworka(ji,jj) .GT. zmerg .AND. |
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309 | $ pworkb(ji,jj) .GT. zmerg) THEN |
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310 | pworkc(ji,jj) = 0.0 |
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311 | ENDIF |
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312 | ENDIF |
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313 | 250 CONTINUE |
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314 | 240 CONTINUE |
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315 | C |
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316 | C* Annual climatology |
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317 | C |
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318 | ELSE IF (clclim .EQ. 'AN') THEN |
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319 | READ (kunit) pworkc |
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320 | ELSE |
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321 | CALL prcout ('This type of climatology cannot be used - |
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322 | $ clim = ', clclim, 1) |
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323 | ENDIF |
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324 | C |
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325 | C* Blending and smoothing |
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326 | C |
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327 | C* Storing of climatology field interpolated in intermediate array pworka |
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328 | C |
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329 | DO 260 jj = 1, klat |
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330 | DO 270 ji = 1, klon |
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331 | pworka(ji,jj) = pworkc(ji,jj) |
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332 | 270 CONTINUE |
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333 | 260 CONTINUE |
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334 | C* SST case |
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335 | IF (clfield .EQ. 'SST') THEN |
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336 | C |
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337 | C* Put interpolated values in intermediate array if: |
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338 | C - the point is an atmosphere sea point |
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339 | C - there is at least one underlying ocean sea point |
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340 | C |
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341 | DO 280 jj = 1, klat |
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342 | DO 290 ji = 1, klon |
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343 | IF (kmesh(ji,jj) .NE. 0 .AND. kmask(ji,jj) .EQ. 0) THEN |
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344 | pworka(ji,jj) = pfild(ji,jj) |
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345 | ENDIF |
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346 | 290 CONTINUE |
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347 | 280 CONTINUE |
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348 | C |
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349 | C* If needed, do coast mismatch correction |
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350 | C --> Special treatment for coastal points where there is a |
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351 | C --> a mismatch between ocean and atmosphere land sea masks |
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352 | C --> The array npcoast is calculated in routine coasts.f |
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353 | C --> icoor and jcoor are externally defined functions |
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354 | C |
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355 | IF(nfcoast .EQ. 1) THEN |
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356 | C* If first iteration, initialize coast mismatch data |
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357 | IF (lcoast) THEN |
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358 | itmsq = 1 |
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359 | CALL coasts (plon, plat, kmask, itmsq, |
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360 | $ klon, klat, kmesh) |
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361 | C* Switch off flag |
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362 | lcoast = .FALSE. |
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363 | ENDIF |
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364 | IF (nlogprt .GE. 2) THEN |
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365 | WRITE (UNIT = nulan,FMT = *) ' ' |
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366 | WRITE (UNIT = nulan,FMT = *) |
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367 | $ ' * Model run date * ' |
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368 | WRITE (UNIT = nulan,FMT = *) |
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369 | $ ' * -------------- * ' |
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370 | WRITE (UNIT = nulan,FMT = *) ' ' |
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371 | WRITE (UNIT = nulan,FMT = *) |
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372 | $ ' Year --->>> ',nanow |
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373 | WRITE (UNIT = nulan,FMT = *) |
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374 | $ ' Month --->>> ',nmnow |
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375 | WRITE (UNIT = nulan,FMT = *) |
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376 | $ ' Day --->>> ',njnow |
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377 | WRITE (UNIT = nulan,FMT = *) ' ' |
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378 | WRITE (UNIT = nulan,FMT = *) |
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379 | $ ' Correct for coast mismatch ' |
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380 | WRITE (UNIT = nulan,FMT = *) |
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381 | $ ' ************************** ' |
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382 | WRITE (UNIT = nulan,FMT = *) ' ' |
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383 | ENDIF |
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384 | DO 291 jc = 1, ncoast |
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385 | iic = icoor(npcoast(jc,1), klon) |
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386 | ijc = jcoor(npcoast(jc,1), klon) |
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387 | ztmptot = 0. |
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388 | DO 292 jn = 3, 2 + npcoast(jc,2) |
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389 | iiic = icoor(npcoast(jc,jn), klon) |
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390 | ijjc = jcoor(npcoast(jc,jn), klon) |
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391 | ztmptot = ztmptot + pfild(iiic,ijjc) |
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392 | 292 CONTINUE |
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393 | C |
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394 | C* Print old and new values |
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395 | C |
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396 | IF (nlogprt .GE. 2) THEN |
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397 | WRITE (UNIT = nulan,FMT = *) |
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398 | $ ' Resetting SST at point (i,j)= ',iic,ijc |
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399 | WRITE (UNIT = nulan,FMT = *) |
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400 | $ ' Old SST value : SST = ', pfild(iic,ijc) |
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401 | WRITE (UNIT = nulan,FMT = *) |
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402 | $ ' Clim SST value : SST = ', pworka(iic,ijc) |
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403 | ENDIF |
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404 | C |
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405 | C* Get new value |
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406 | C |
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407 | pfild(iic,ijc) = ztmptot / float(npcoast(jc,2)) |
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408 | IF (nlogprt .GE. 2) THEN |
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409 | WRITE (UNIT = nulan,FMT = *) |
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410 | $ ' New SST value : SST = ', pfild(iic,ijc) |
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411 | ENDIF |
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412 | C |
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413 | C* Copy new value into intermediate array |
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414 | C |
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415 | pworka(iic,ijc) = pfild(iic,ijc) |
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416 | 291 CONTINUE |
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417 | ENDIF |
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418 | C |
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419 | C* SIE case : we assign the new field to climatology i.e we do nothing |
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420 | C |
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421 | ELSE IF (clfield .EQ. 'SIE') THEN |
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422 | CONTINUE |
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423 | C |
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424 | C* General case: put interpolated value if there is an |
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425 | C underlying grid point (whether land or sea) |
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426 | C |
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427 | ELSE |
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428 | DO 293 jj = 1, klat |
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429 | DO 294 ji = 1, klon |
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430 | IF (kmesh(ji,jj) .NE. 0) THEN |
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431 | pworka(ji,jj) = pfild(ji,jj) |
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432 | ENDIF |
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433 | 294 CONTINUE |
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434 | 293 CONTINUE |
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435 | ENDIF |
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436 | C |
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437 | C |
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438 | C* 3. Do the smoothing on borders (only for SST) |
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439 | C ---------------------------- |
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440 | C |
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441 | IF (clfield .EQ. 'SST' .AND. clsmooth .EQ. 'SMO') THEN |
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442 | C |
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443 | C* First South and North borders |
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444 | C |
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445 | DO 310 jk = nsltb, nslte |
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446 | DO 320 ji = 1, klon |
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447 | IF (kmesh(ji,jk) .NE. 0 .AND. kmask(ji,jk) .EQ. 0) THEN |
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448 | pworka(ji,jk) = qalfa * (jk - nsltb) * pfild(ji,jk) |
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449 | $ + (1.-qalfa * (jk - nsltb)) * pworkc(ji,jk) |
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450 | ENDIF |
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451 | 320 CONTINUE |
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452 | 310 CONTINUE |
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453 | DO 330 jk = nnltb, nnlte, -1 |
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454 | DO 340 ji = 1, klon |
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455 | IF (kmesh(ji,jk) .NE. 0 .AND. kmask(ji,jk) .EQ. 0) THEN |
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456 | pworka(ji,jk) = qalfa * (nnltb - jk) * pfild(ji,jk) |
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457 | $ + (1.-qalfa * (nnltb - jk)) * pworkc(ji,jk) |
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458 | ENDIF |
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459 | 340 CONTINUE |
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460 | 330 CONTINUE |
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461 | C |
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462 | C* Western border |
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463 | C |
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464 | DO 350 jj = nslte + 1, nnlte - 1 |
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465 | DO 360 ji = 1, nwlgmx |
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466 | IF (kmesh(ji,jj) .EQ. 0 .AND. |
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467 | $ kmesh(ji + 1,jj) .NE. 0) THEN |
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468 | DO 370 jk = 1, nliss |
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469 | pworka(ji + jk - 1,jj) = qbeta*(jk - 1) * |
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470 | $ pfild(ji + jk - 1,jj) + |
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471 | $ pworkc(ji + jk - 1,jj) * |
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472 | $ (1.-qbeta*(jk - 1)) |
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473 | 370 CONTINUE |
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474 | ENDIF |
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475 | 360 CONTINUE |
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476 | 350 CONTINUE |
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477 | C |
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478 | C* Eastern border |
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479 | C |
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480 | DO 380 jj = nslte + 1, nnlte - 1 |
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481 | DO 390 ji = klon, nelgmx, -1 |
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482 | IF (kmesh(ji,jj) .EQ. 0 .AND. |
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483 | $ kmesh(ji - 1,jj) .NE. 0) THEN |
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484 | DO 391 jk = 1, nliss |
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485 | pworka(ji - jk + 1,jj) = qbeta*(jk - 1) * |
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486 | $ pfild(ji - jk + 1,jj) + |
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487 | $ pworkc(ji - jk + 1,jj) * |
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488 | $ (1.-qbeta*(jk - 1)) |
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489 | 391 CONTINUE |
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490 | ENDIF |
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491 | 390 CONTINUE |
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492 | 380 CONTINUE |
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493 | C |
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494 | C* Calculate and write flux correction term cfldcor on unit nlucor |
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495 | C |
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496 | CALL prcout('Calculate flux correction term', cfldcor, 1) |
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497 | CALL szero(pworkb,klon*klat) |
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498 | DO 392 jj = 1, klat |
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499 | DO 393 ji = 1, klon |
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500 | C |
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501 | C* The correction term is estimated only for atmosphere sea points with |
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502 | C underlying ocean sea points |
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503 | C |
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504 | IF (kmesh(ji,jj) .NE. 0 .AND. kmask(ji,jj) .EQ. 0) THEN |
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505 | pworkb(ji,jj) = pfild(ji,jj) - pworka(ji,jj) |
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506 | ENDIF |
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507 | 393 CONTINUE |
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508 | 392 CONTINUE |
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509 | C |
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510 | C* Rewind unit nlucor and write |
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511 | C |
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512 | IF (nlogprt .GE. 2) THEN |
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513 | CALL prtout('Write it on logical unit ', nlucor, 2) |
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514 | ENDIF |
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515 | REWIND nlucor |
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516 | CALL locwrite(cfldcor, pworkb, klon*klat, nlucor, iflag) |
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517 | IF (iflag .NE. 0) THEN |
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518 | CALL prcout |
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519 | $ ('WARNING: problem in writing field', |
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520 | $ cfldcor, 1) |
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521 | CALL prtout |
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522 | $ ('Error in writing logical unit', nlucor, 2) |
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523 | CALL HALTE('STOP in filling') |
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524 | ENDIF |
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525 | ENDIF |
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526 | C |
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527 | C* Assign intermediate array pworka values to final array pfild |
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528 | C |
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529 | DO 394 jj = 1, klat |
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530 | DO 395 ji = 1, klon |
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531 | pfild(ji,jj) = pworka(ji,jj) |
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532 | 395 CONTINUE |
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533 | 394 CONTINUE |
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534 | C |
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535 | C |
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536 | C* 4. End of routine |
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537 | C -------------- |
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538 | C |
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539 | IF (nlogprt .GE. 2) THEN |
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540 | WRITE (UNIT = nulou,FMT = *) ' ' |
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541 | WRITE (UNIT = nulou,FMT = *) |
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542 | $ ' --------- End of routine filling ---------' |
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543 | CALL FLUSH (nulou) |
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544 | ENDIF |
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545 | RETURN |
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546 | END |
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