1 | SUBROUTINE nagset(px1, py1, p1surf, |
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2 | $ kmsk1, kvmsk1, kngx1, kngy1, |
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3 | $ px2, py2, p2surf, |
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4 | $ kmsk2, kvmsk2, kngx2, kngy2, |
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5 | $ cdtyp, |
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6 | $ pr1to2, k1to2, kw1to2, psgr1, psgr2, |
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7 | $ psz12, krdwt, kwlun, knumber) |
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8 | C**** |
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9 | C |
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10 | C ***************************** |
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11 | C * OASIS ROUTINE - LEVEL 3 * |
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12 | C * ------------- ------- * |
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13 | C ***************************** |
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14 | C |
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15 | C**** *nagset* - Initializations for the global anais method |
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16 | C |
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17 | C Purpose: |
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18 | C ------- |
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19 | C Assumes curvilinear grid when calling pcscur |
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20 | C |
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21 | C** Interface: |
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22 | C --------- |
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23 | C *CALL* *nagset(px1, py1, p1surf, kmsk1, kvmsk1, kngx1, kngy1, |
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24 | C px2, py2, p2surf, kmsk2, kvmsk2, kngx2, kngy2, |
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25 | C pr1to2, k1to2, kw1to2, psgr1, psgr2, |
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26 | C psz12, krdwt, kwlun, knumber)* |
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27 | C Input: |
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28 | C ----- |
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29 | C kngx1 : number of longitudes for source grid |
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30 | C kngy1 : number of latitudes for source grid |
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31 | C px1 : longitudes for source grid (real 2D) |
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32 | C py1 : latitudes for source grid (real 2D) |
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33 | C p1surf : grid square surfaces for source grid (real 2D) |
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34 | C kmsk1 : the mask for source grid (integer 2D) |
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35 | C kvmsk1 : the value of the mask for source grid |
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36 | C kngx2 : number of longitudes for target grid |
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37 | C kngy2 : number of latitudes for target grid |
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38 | C px2 : longitudes for target grid (real 2D) |
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39 | C py2 : latitudes for target grid (real 2D) |
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40 | C p2surf : grid square surfaces for target grid (real 2D) |
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41 | C kmsk2 : the mask of target grid (integer 2D) |
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42 | C kvmsk2 : the value of the mask for target grid |
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43 | C cdtyp : type of source grid |
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44 | C psz12 : variance multiplicator |
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45 | C kw1to2 : number of neighbors used for the weights |
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46 | C krdwt : read/write flag for the weights |
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47 | C kwlun : logical unit for the weights |
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48 | C knumber : flag to identify appropriate Anaism dataset |
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49 | C |
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50 | C Output: |
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51 | C ------ |
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52 | C pr1to2 : weights for Anaism interpolation (real 2D) |
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53 | C k1to2 : source grid neighbors adresses (integer 2D) |
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54 | C psgr1 : source grid spherical surface (p1surf/Rearth**2) |
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55 | C psgr2 : target grid spherical surface (p2surf/Rearth**2) |
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56 | C |
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57 | C |
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58 | C Workspace: |
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59 | C --------- |
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60 | C None |
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61 | C |
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62 | C External: |
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63 | C -------- |
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64 | C qcscur, ssumr, grstat, qgrhal, icoor, jcoor |
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65 | C locwrint, locwrite, locread, locrint, |
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66 | C |
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67 | C References: |
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68 | C ---------- |
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69 | C O. Thual, Simple ocean-atmosphere interpolation. |
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70 | C Part A: The method, EPICOA 0629 (1992) |
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71 | C Part B: Software implementation, EPICOA 0630 (1992) |
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72 | C See also OASIS manual(1995) |
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73 | C |
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74 | C History: |
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75 | C ------- |
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76 | C Version Programmer Date Description |
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77 | C ------- ---------- ---- ----------- |
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78 | C 1.1 O. Thual 93/04/15 created |
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79 | C 2.0 L. Terray 95/12/01 modified: new structure |
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80 | C 2.3 S. Valcke 99/04/30 added: printing levels |
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81 | C |
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82 | C %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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83 | C |
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84 | C* ---------------------------- Include files --------------------------- |
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85 | C |
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86 | USE mod_kinds_oasis |
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87 | USE mod_parameter |
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88 | USE mod_analysis |
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89 | USE mod_unit |
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90 | USE mod_printing |
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91 | C |
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92 | C* ---------------------------- Argument declarations ------------------- |
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93 | C |
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94 | REAL (kind=ip_realwp_p) px1(kngx1,kngy1), py1(kngx1,kngy1), |
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95 | $ psgr1(kngx1,kngy1) |
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96 | REAL (kind=ip_realwp_p) px2(kngx2,kngy2), py2(kngx2,kngy2), |
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97 | $ psgr2(kngx2,kngy2) |
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98 | REAL (kind=ip_realwp_p) pr1to2(kw1to2,kngx2*kngy2), |
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99 | $ p1surf(kngx1,kngy1) |
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100 | REAL (kind=ip_realwp_p) p2surf(kngx2,kngy2) |
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101 | INTEGER (kind=ip_intwp_p) kmsk1(kngx1,kngy1), kmsk2(kngx2,kngy2) |
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102 | INTEGER (kind=ip_intwp_p) k1to2(kw1to2,kngx2*kngy2) |
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103 | CHARACTER*1 cdtyp |
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104 | C |
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105 | C* ---------------------------- Local declarations ---------------------- |
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106 | C |
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107 | CHARACTER*8 cladress, clweight |
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108 | CHARACTER*1 cltyp |
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109 | C |
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110 | C* ---------------------------- Poema verses ---------------------------- |
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111 | C |
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112 | C %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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113 | C |
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114 | C* 1. Initializations and checkings |
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115 | C ----------------------------- |
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116 | C |
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117 | IF (nlogprt .GE. 2) THEN |
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118 | WRITE(UNIT = nulou,FMT = *) ' ' |
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119 | WRITE(UNIT = nulou,FMT = *) ' ' |
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120 | WRITE(UNIT = nulou,FMT = *) |
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121 | $ ' ROUTINE nagset - Level 3' |
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122 | WRITE(UNIT = nulou,FMT = *) |
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123 | $ ' ************** *******' |
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124 | WRITE(UNIT = nulou,FMT = *) ' ' |
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125 | WRITE(UNIT = nulou,FMT = *) |
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126 | $ ' Set up global anais interpolation' |
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127 | WRITE(UNIT = nulou,FMT = *) ' ' |
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128 | WRITE(UNIT = nulou,FMT = *) ' ' |
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129 | ENDIF |
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130 | C |
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131 | C* Define global dimensions and other local variables |
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132 | C |
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133 | ing1 = kngx1 * kngy1 |
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134 | ing2 = kngx2 * kngy2 |
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135 | ivmsk1 = kvmsk1 |
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136 | ivmsk2 = kvmsk2 |
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137 | iflag = 0 |
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138 | C |
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139 | C* Locators |
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140 | C |
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141 | WRITE(clweight,'(''WEIGHTS'',I1)') knumber |
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142 | WRITE(cladress,'(''ADRESSE'',I1)') knumber |
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143 | C |
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144 | C* Printing |
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145 | C |
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146 | IF (nlogprt .GE. 2) THEN |
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147 | WRITE (UNIT = nulan,FMT = *) ' ANAIS output FILE ' |
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148 | WRITE (UNIT = nulan,FMT = *) ' ***** ****** **** ' |
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149 | WRITE (UNIT = nulan,FMT = *) ' ' |
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150 | WRITE (UNIT = nulan,FMT = *) ' Routine nagset ' |
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151 | WRITE (UNIT = nulan,FMT = *) ' -------------- ' |
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152 | WRITE (UNIT = nulan,FMT = *) ' ' |
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153 | ENDIF |
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154 | C |
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155 | C* 2. Statistics of source grid |
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156 | C ------------------------- |
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157 | C |
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158 | cltyp = cdtyp |
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159 | C* The following routines calculate some info about the grids |
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160 | C* if mesh surface information is present |
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161 | C |
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162 | C* Calculate surface elements (curvilinear) |
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163 | C |
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164 | itot = 0 |
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165 | DO 200 ix = 1, kngx1 |
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166 | DO 210 iy = 1, kngy1 |
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167 | IF (p1surf(ix, iy) .eq. 0.) itot = itot + 1 |
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168 | 210 CONTINUE |
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169 | 200 CONTINUE |
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170 | IF (itot .eq. ing1) THEN |
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171 | WRITE (UNIT = nulan,FMT = *) 'No statistics will be performed' |
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172 | WRITE (UNIT = nulan,FMT = *) 'on source grid as the mesh area' |
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173 | WRITE (UNIT = nulan,FMT = *) 'info is not present.' |
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174 | ELSE |
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175 | CALL qcscur (psgr1, kngx1, kngy1, p1surf) |
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176 | zsum = ssumr (psgr1, ing1) |
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177 | C |
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178 | C* Printing on ANAIS output file |
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179 | C |
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180 | IF (nlogprt .GE. 2) THEN |
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181 | WRITE (UNIT = nulan,FMT = *) |
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182 | $ ' Some statistics about the source grid ' |
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183 | WRITE (UNIT = nulan,FMT = *) |
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184 | $ ' ************************************* ' |
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185 | WRITE (UNIT = nulan,FMT = *) ' ' |
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186 | WRITE (UNIT = nulan,FMT = *) |
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187 | $ ' Sum of grid square surfaces = ', zsum |
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188 | WRITE (UNIT = nulan,FMT = *) |
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189 | $ ' It must be equal to 4 x PI = ', 16. * atan(1.) |
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190 | WRITE (UNIT = nulan,FMT = *) ' ' |
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191 | ENDIF |
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192 | ENDIF |
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193 | C |
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194 | C* Calculate for ocean points (unmasked points) the following data : |
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195 | C ************ |
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196 | C - total surface |
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197 | C - average inter-point distance |
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198 | C - inverse of the sum of surface elements squared |
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199 | C* Note: The surface and the sum of surface elements squared will not |
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200 | C be significant IF no information on grid mesh is present but the |
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201 | C average inter-point distance will be significant and used after. |
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202 | C |
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203 | CALL grstat (px1, py1, psgr1, kmsk1, kngx1, kngy1, cltyp, |
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204 | $ zamsh1, zstot1, zhhi1, ivmsk1) |
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205 | C |
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206 | IF (nlogprt .GE. 2) THEN |
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207 | WRITE (UNIT = nulan,FMT = *) ' ' |
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208 | WRITE (UNIT = nulan,FMT = *) |
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209 | $ ' Ocean average mesh distance = ', sqrt(zamsh1) |
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210 | ENDIF |
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211 | IF (itot .ne. ing1) then |
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212 | C* Printing |
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213 | C |
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214 | IF (nlogprt .GE. 2) THEN |
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215 | WRITE (UNIT = nulan,FMT = *) |
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216 | $ ' ******************************* ' |
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217 | WRITE (UNIT = nulan,FMT = *) 'Ocean total surface = ', |
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218 | $ zstot1 |
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219 | WRITE (UNIT = nulan,FMT = *) |
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220 | $ ' Ocean inverse of sum surf. elts. squared = ', zhhi1 |
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221 | ENDIF |
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222 | ENDIF |
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223 | C |
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224 | C |
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225 | C* 3. Statistics of target grid |
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226 | C ------------------------- |
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227 | C |
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228 | itot = 0 |
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229 | DO 300 ix = 1, kngx2 |
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230 | DO 310 iy = 1, kngy2 |
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231 | IF (p2surf(ix, iy) .eq. 0.) itot = itot + 1 |
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232 | 310 CONTINUE |
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233 | 300 CONTINUE |
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234 | IF (itot .eq. ing2) THEN |
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235 | WRITE (UNIT = nulan,FMT = *) 'No statistics will be performed' |
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236 | WRITE (UNIT = nulan,FMT = *) 'on target grid as the mesh area' |
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237 | WRITE (UNIT = nulan,FMT = *) 'info is not present.' |
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238 | ELSE |
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239 | C* The following routines calculate some interesting info |
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240 | C* about the target grid |
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241 | C |
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242 | C* Calculate surface elements (curvilinear) |
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243 | C |
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244 | CALL qcscur (psgr2, kngx2, kngy2, p2surf) |
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245 | zsum = ssumr (psgr2, ing2) |
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246 | IF (nlogprt .GE. 2) THEN |
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247 | WRITE (UNIT = nulan,FMT = *) ' ' |
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248 | WRITE (UNIT = nulan,FMT = *) |
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249 | $ ' Some statistics about the target grid ' |
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250 | WRITE (UNIT = nulan,FMT = *) |
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251 | $ ' ************************************* ' |
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252 | WRITE (UNIT = nulan,FMT = *) ' ' |
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253 | WRITE (UNIT = nulan,FMT = *) |
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254 | $ ' Sum of grid square surfaces = ', zsum |
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255 | WRITE (UNIT = nulan,FMT = *) |
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256 | $ ' It must be equal to 4 x PI = ', |
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257 | $ 16. * atan(1.) |
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258 | WRITE (UNIT = nulan,FMT = *) ' ' |
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259 | ENDIF |
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260 | C |
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261 | C* Calculate for ocean points (unmasked points) the following data : |
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262 | C ************ |
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263 | C - total surface |
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264 | C - average inter-point distance |
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265 | C - inverse of the sum of surface elements squared |
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266 | C |
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267 | CALL grstat (px2, py2, psgr2, kmsk2, kngx2, kngy2, cltyp, |
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268 | $ zamsh2, zstot2, zhhi2, ivmsk2) |
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269 | C |
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270 | C* Printing |
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271 | C |
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272 | IF (nlogprt .GE. 2) THEN |
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273 | WRITE (UNIT = nulan,FMT = *) |
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274 | $ ' Some info for ocean points only ' |
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275 | WRITE (UNIT = nulan,FMT = *) |
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276 | $ ' ******************************* ' |
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277 | WRITE (UNIT = nulan,FMT = *) ' ' |
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278 | WRITE (UNIT = nulan,FMT = *) |
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279 | $ ' Average mesh distance = ', sqrt(zamsh2) |
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280 | WRITE (UNIT = nulan,FMT = *) ' Total surface = ', zstot2 |
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281 | WRITE (UNIT = nulan,FMT = *) |
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282 | $ ' Inverse of sum surf. elts. squared = ', zhhi2 |
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283 | ENDIF |
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284 | ENDIF |
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285 | C |
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286 | C |
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287 | C* 4. Preparation of the neighbour search |
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288 | C ----------------------------------- |
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289 | C |
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290 | C* Consistency checking |
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291 | C |
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292 | IF (kw1to2 .GT. ing2) THEN |
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293 | WRITE (UNIT = nulou,FMT = *) ' WARNING: kw1to2 .gt. ing2 ' |
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294 | WRITE (UNIT = nulou,FMT = *) ' ******* ------ ---- ' |
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295 | WRITE (UNIT = nulou,FMT = *) |
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296 | $ ' kw1to2 = ',kw1to2,' ing2 = ',ing2 |
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297 | ENDIF |
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298 | C |
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299 | C* Variance for gaussian weight function |
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300 | C |
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301 | zs1to2 = zamsh1 * psz12 |
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302 | C |
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303 | C* Printing |
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304 | C |
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305 | IF (nlogprt .GE. 2) THEN |
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306 | WRITE(UNIT = nulan,FMT = *) ' ' |
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307 | WRITE(UNIT = nulan,FMT = *) |
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308 | $ ' Gaussian variance is zs1to2 = ', zs1to2 |
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309 | WRITE(UNIT = nulan,FMT = *) ' ' |
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310 | ENDIF |
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311 | C |
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312 | C |
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313 | C* 5. Weights determination |
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314 | C --------------------- |
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315 | C |
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316 | C* Initialization for read write options |
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317 | C |
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318 | IF (krdwt .EQ. 1) THEN |
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319 | C |
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320 | C* Writing |
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321 | C ------- |
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322 | C |
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323 | C* Calculates and write weights after checking numbers |
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324 | C |
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325 | C* Calculates weights |
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326 | C |
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327 | CALL qgrhal (pr1to2, k1to2, kw1to2, |
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328 | $ px2, py2, kmsk2, kngx2, kngy2, |
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329 | $ px1, py1, kmsk1, kngx1, kngy1, |
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330 | $ zs1to2, ivmsk1, ivmsk2) |
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331 | C |
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332 | C* Write weights + other useful stuff |
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333 | C |
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334 | C* - write main locator string + weights |
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335 | C |
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336 | CALL locwrite (clweight, pr1to2, kw1to2*kngx2*kngy2, |
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337 | $ kwlun, iflag) |
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338 | IF (iflag .NE. 0) THEN |
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339 | WRITE (UNIT = nulou,FMT = *) |
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340 | $ 'Problem in writing on UNIT = ', kwlun |
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341 | WRITE (UNIT = nulou,FMT = *) |
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342 | $ 'String locator is = ', clweight |
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343 | CALL HALTE ('Stop in nagset') |
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344 | ENDIF |
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345 | C |
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346 | C* - write nearest neighbors adresses |
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347 | C |
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348 | CALL locwrint (cladress, k1to2, kw1to2*kngx2*kngy2, |
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349 | $ kwlun, iflag) |
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350 | IF (iflag .NE. 0) THEN |
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351 | WRITE (UNIT = nulou,FMT = *) |
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352 | $ 'Problem in writing on UNIT = ', kwlun |
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353 | WRITE (UNIT = nulou,FMT = *) |
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354 | $ 'String locator is = ', cladress |
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355 | CALL HALTE ('Stop in nagset') |
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356 | ENDIF |
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357 | C |
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358 | C* - write checkings numbers (grid parameters) |
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359 | C |
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360 | write(kwlun) kngx1, kngy1, kngx2, kngy2 |
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361 | C |
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362 | C* Job is done |
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363 | C |
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364 | IF (nlogprt .GE. 2) THEN |
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365 | CALL prtout('Wrote weights on unit = ', kwlun, 1) |
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366 | ENDIF |
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367 | C |
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368 | C* Reading |
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369 | C ------- |
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370 | C |
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371 | ELSE |
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372 | C |
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373 | C* Reads weights and checks |
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374 | C |
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375 | C* - Read weight locator string + weights |
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376 | C |
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377 | CALL locread (clweight, pr1to2, kw1to2*kngx2*kngy2, |
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378 | $ kwlun, iflag) |
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379 | IF (iflag .NE. 0) THEN |
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380 | WRITE (UNIT = nulou,FMT = *) |
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381 | $ 'Problem in reading on UNIT = ', kwlun |
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382 | WRITE (UNIT = nulou,FMT = *) |
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383 | $ 'String locator is = ', clweight |
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384 | CALL HALTE ('Stop in nagset') |
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385 | ENDIF |
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386 | C |
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387 | C* - Read nearest neighbors adresses |
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388 | C |
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389 | CALL locrint (cladress, k1to2, kw1to2*kngx2*kngy2, |
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390 | $ kwlun, iflag) |
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391 | IF (iflag .NE. 0) THEN |
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392 | WRITE (UNIT = nulou,FMT = *) |
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393 | $ 'Problem in reading on UNIT = ', kwlun |
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394 | WRITE (UNIT = nulou,FMT = *) |
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395 | $ 'String locator is = ', cladress |
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396 | CALL HALTE ('Stop in nagset') |
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397 | ENDIF |
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398 | C |
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399 | C* - Read checkings numbers (grid parameters) |
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400 | C |
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401 | READ(kwlun) ingx1, ingy1, ingx2, ingy2 |
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402 | C |
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403 | C* Checks |
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404 | C |
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405 | IF (ingx1 .NE. kngx1 .OR. ingy1 .NE. kngy1 .OR. |
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406 | $ ingx2 .NE. kngx2 .OR. ingy2 .NE. kngy2) THEN |
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407 | WRITE (UNIT = nulou,FMT = *) |
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408 | $ ' Inconsistency in gweights file' |
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409 | WRITE (UNIT = nulou,FMT = *) |
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410 | $ 'ingx1 = ',ingx1,'kngx1 = ',kngx1 |
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411 | WRITE (UNIT = nulou,FMT = *) |
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412 | $ 'ingy1 = ',ingy1,'kngy1 = ',kngy1 |
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413 | WRITE (UNIT = nulou,FMT = *) |
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414 | $ 'ingx2 = ',ingx2,'kngx2 = ',kngx2 |
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415 | WRITE (UNIT = nulou,FMT = *) |
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416 | $ 'ingy2 = ',ingy2,'kngy2 = ',kngy2 |
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417 | CALL HALTE ('Stop in nagset') |
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418 | ENDIF |
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419 | C |
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420 | C* Reading of weights done |
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421 | C |
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422 | IF (nlogprt .GE. 2) THEN |
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423 | CALL prtout |
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424 | $ ('Reading of weights done on unit = ', kwlun, 1) |
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425 | ENDIF |
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426 | ENDIF |
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427 | C |
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428 | C |
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429 | C* 6. Printing weights and adresses on ANAIS output file |
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430 | C -------------------------------------------------- |
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431 | C |
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432 | IF (nlogprt .GE. 2) THEN |
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433 | WRITE (UNIT = nulan,FMT = *) ' ' |
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434 | WRITE (UNIT = nulan,FMT = *) |
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435 | $ ' Print weights and adresses of nearest neighbors ' |
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436 | WRITE (UNIT = nulan,FMT = *) |
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437 | $ ' *********************************************** ' |
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438 | WRITE (UNIT = nulan,FMT = *) ' ' |
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439 | WRITE (UNIT = nulan,FMT = 6030) kw1to2 |
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440 | DO 610 jj = 1, kngy2 |
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441 | DO 620 ji = 1, kngx2 |
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442 | WRITE (UNIT = nulan,FMT = 6010) ji, jj |
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443 | WRITE (UNIT = nulan,FMT = 6020) px2(ji,jj), py2(ji,jj) |
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444 | IF (kmsk2(ji,jj) .EQ. 0) THEN |
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445 | DO 630 jn = 1, kw1to2 |
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446 | iind = ji + kngx2 * (jj-1) |
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447 | iadr = k1to2(jn,iind) |
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448 | ix = icoor(iadr,kngx1) |
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449 | iy = jcoor(iadr,kngx1) |
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450 | WRITE(UNIT = nulan,FMT = 6040) jn, pr1to2(jn,iind) |
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451 | WRITE(UNIT = nulan,FMT = 6050) |
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452 | $ ix, iy, px1(ix,iy), py1(ix,iy) |
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453 | 630 CONTINUE |
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454 | ELSE |
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455 | WRITE(UNIT = nulan,FMT = 6060) |
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456 | ENDIF |
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457 | 620 CONTINUE |
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458 | 610 CONTINUE |
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459 | CALL FLUSH(nulan) |
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460 | ENDIF |
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461 | C |
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462 | C* Formats |
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463 | C |
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464 | 6010 FORMAT(/,' Target grid point -- i = ',I3,' j = ',I3) |
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465 | 6020 FORMAT(' Point coordinates -- long = ',F9.4,' lat = ',F9.4) |
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466 | 6030 FORMAT(3X,'Number of nearest source grid neighbors = ',I3) |
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467 | 6040 FORMAT(5X,' neighbor number = ',I3,' weight is = ',F6.4) |
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468 | 6050 FORMAT(5X,' i = ',I3,' j = ',I3,' lon = ',F9.4,' lat = ',F9.4) |
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469 | 6060 FORMAT(5X,' This is a continental point on the target grid ') |
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470 | C |
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471 | C |
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472 | C* 7. End of routine |
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473 | C -------------- |
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474 | C |
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475 | IF (nlogprt .GE. 2) THEN |
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476 | WRITE(UNIT = nulou,FMT = *) ' ' |
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477 | WRITE(UNIT = nulou,FMT = *) |
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478 | $ ' --------- End of routine nagset ---------' |
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479 | CALL FLUSH(nulou) |
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480 | ENDIF |
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481 | RETURN |
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482 | END |
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