1 | !************************************************************************ |
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2 | ! Fortran 95 OPA Nesting tools * |
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3 | ! * |
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4 | ! Copyright (C) 2005 Florian Lemarié (Florian.Lemarie@imag.fr) * |
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5 | ! * |
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6 | !************************************************************************ |
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7 | ! |
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8 | MODULE agrif_extrapolation |
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9 | ! |
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10 | USE agrif_types |
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11 | USE agrif_readwrite |
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12 | USE io_netcdf |
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13 | USE agrif_gridsearch |
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14 | |
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15 | IMPLICIT NONE |
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16 | |
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17 | CONTAINS |
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18 | ! |
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19 | !************************************************************************ |
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20 | ! * |
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21 | ! MODULE AGRIF_EXTRAPOLATION * |
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22 | ! * |
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23 | !************************************************************************ |
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24 | ! |
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25 | !**************************************************************** |
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26 | ! subroutine extrap_detect * |
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27 | ! * |
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28 | ! detection on each level of points * |
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29 | ! where extrapolation is required * |
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30 | ! * |
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31 | !**************************************************************** |
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32 | ! |
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33 | ! |
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34 | SUBROUTINE extrap_detect(G0,G1,detected,n,posvar) |
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35 | ! |
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36 | LOGICAL, DIMENSION(:,:) :: detected |
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37 | TYPE(Coordinates) :: G0,G1 |
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38 | CHARACTER(*), OPTIONAL :: posvar |
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39 | INTEGER :: i,j,k,ic,jc,compt,dst_add,n |
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40 | INTEGER, DIMENSION(1) :: i_min,j_min |
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41 | ! |
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42 | IF( PRESENT(posvar) .AND. posvar == 'U' ) THEN |
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43 | CALL get_detected_pts(G0%gphiu,G1%gphiu,G0%glamu,G1%glamu, & |
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44 | G0%umask(:,:,n),G1%umask(:,:,n),detected(:,:)) |
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45 | ELSEIF( PRESENT(posvar) .AND. posvar == 'V' ) THEN |
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46 | CALL get_detected_pts(G0%gphiv,G1%gphiv,G0%glamv,G1%glamv, & |
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47 | G0%vmask(:,:,n),G1%vmask(:,:,n),detected(:,:)) |
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48 | ELSEIF( PRESENT(posvar) .AND. posvar == 'F' ) THEN |
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49 | CALL get_detected_pts(G0%gphif,G1%gphif,G0%glamf,G1%glamf, & |
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50 | G0%fmask(:,:,n),G1%fmask(:,:,n),detected(:,:)) |
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51 | ELSE |
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52 | CALL get_detected_pts(G0%gphit,G1%gphit,G0%glamt,G1%glamt, & |
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53 | G0%tmask(:,:,n),G1%tmask(:,:,n),detected(:,:)) |
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54 | !clem CALL get_detected_pts(G0%nav_lat,G1%nav_lat,G0%nav_lon,G1%nav_lon, & |
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55 | !clem G0%tmask(:,:,n),G1%tmask(:,:,n),detected(:,:)) |
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56 | ENDIF |
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57 | ! |
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58 | END SUBROUTINE extrap_detect |
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59 | ! |
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60 | ! |
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61 | !**************************************************************** |
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62 | ! end subroutine extrap_detect * |
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63 | !**************************************************************** |
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64 | ! |
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65 | ! |
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66 | !**************************************************************** |
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67 | ! subroutine correct_field * |
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68 | ! correct field on detected points * |
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69 | ! * |
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70 | !**************************************************************** |
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71 | ! |
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72 | SUBROUTINE correct_field(detected_pts,tabin,tabinkm1,tabinkm2,G0,nav_lev,newmask,k,posvar) |
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73 | ! |
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74 | LOGICAL, DIMENSION(:,:) :: detected_pts |
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75 | LOGICAL, DIMENSION(:,:) :: newmask |
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76 | CHARACTER(*),OPTIONAL :: posvar |
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77 | INTEGER :: k |
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78 | ! |
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79 | INTEGER :: i,j,ii,jj,nx,ny,n,lbi,ubi,lbj,ubj,kpos,ipos,jpos,r |
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80 | ! |
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81 | REAL*8, DIMENSION(:,:,:,:) :: tabin |
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82 | REAL*8, DIMENSION(:,:,:,:) :: tabinkm1 |
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83 | REAL*8, DIMENSION(:,:,:,:) :: tabinkm2 |
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84 | REAL*8, DIMENSION(:) :: nav_lev |
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85 | REAL*8, DIMENSION(:,:,:), ALLOCATABLE :: mask |
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86 | REAL*8, DIMENSION(:,:), ALLOCATABLE :: lon,lat |
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87 | REAL*8 :: deriv,deriv_min |
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88 | LOGICAL :: found |
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89 | ! |
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90 | TYPE(Coordinates) :: G0 |
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91 | ! |
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92 | ! copy coarse grid mask in newmask |
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93 | ! |
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94 | IF ( PRESENT(posvar) .AND. posvar == 'U' ) THEN |
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95 | WHERE(G0%umask(:,:,k) == 1. ) |
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96 | newmask(:,:) = .TRUE. |
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97 | ELSEWHERE |
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98 | newmask(:,:) = .FALSE. |
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99 | END WHERE |
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100 | ALLOCATE(mask(SIZE(G0%umask,1),SIZE(G0%umask,2),SIZE(G0%umask,3))) |
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101 | ALLOCATE(lat(SIZE(G0%umask,1),SIZE(G0%umask,2))) |
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102 | ALLOCATE(lon(SIZE(G0%umask,1),SIZE(G0%umask,2))) |
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103 | mask = G0%umask |
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104 | lat = G0%gphiu |
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105 | lon = G0%glamu |
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106 | ELSE IF ( PRESENT(posvar) .AND. posvar == 'V' ) THEN |
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107 | WHERE(G0%vmask(:,:,k) == 1. ) |
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108 | newmask(:,:) = .TRUE. |
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109 | ELSEWHERE |
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110 | newmask(:,:) = .FALSE. |
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111 | END WHERE |
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112 | ALLOCATE(mask(SIZE(G0%vmask,1),SIZE(G0%vmask,2),SIZE(G0%vmask,3))) |
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113 | ALLOCATE(lat(SIZE(G0%vmask,1),SIZE(G0%vmask,2))) |
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114 | ALLOCATE(lon(SIZE(G0%vmask,1),SIZE(G0%vmask,2))) |
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115 | mask = G0%vmask |
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116 | lat = G0%gphiv |
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117 | lon = G0%glamv |
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118 | ELSE IF ( PRESENT(posvar) .AND. posvar == 'F' ) THEN |
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119 | WHERE(G0%fmask(:,:,k) == 1. ) |
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120 | newmask(:,:) = .TRUE. |
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121 | ELSEWHERE |
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122 | newmask(:,:) = .FALSE. |
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123 | END WHERE |
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124 | ALLOCATE(mask(SIZE(G0%fmask,1),SIZE(G0%fmask,2),SIZE(G0%fmask,3))) |
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125 | ALLOCATE(lat(SIZE(G0%fmask,1),SIZE(G0%fmask,2))) |
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126 | ALLOCATE(lon(SIZE(G0%fmask,1),SIZE(G0%fmask,2))) |
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127 | mask = G0%fmask |
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128 | lat = G0%gphif |
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129 | lon = G0%glamf |
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130 | ELSE |
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131 | WHERE(G0%tmask(:,:,k) == 1. ) |
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132 | newmask(:,:) = .TRUE. |
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133 | ELSEWHERE |
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134 | newmask(:,:) = .FALSE. |
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135 | END WHERE |
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136 | ALLOCATE(mask(SIZE(G0%tmask,1),SIZE(G0%tmask,2),SIZE(G0%tmask,3))) |
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137 | ALLOCATE(lat(SIZE(G0%tmask,1),SIZE(G0%tmask,2))) |
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138 | ALLOCATE(lon(SIZE(G0%tmask,1),SIZE(G0%tmask,2))) |
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139 | mask = G0%tmask |
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140 | lat = G0%gphit |
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141 | lon = G0%glamt |
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142 | !clem mask = G0%tmask |
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143 | !clem lon = G0%nav_lon |
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144 | !clem lat = G0%nav_lat |
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145 | ENDIF |
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146 | ! |
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147 | ! dimensions initialisation |
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148 | ! |
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149 | nx = SIZE(tabin,1) |
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150 | ny = SIZE(tabin,2) |
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151 | ! |
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152 | ! |
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153 | DO j = 1,ny |
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154 | ! |
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155 | DO i = 1,nx |
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156 | ! |
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157 | IF( detected_pts(i,j) ) THEN |
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158 | ! |
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159 | r = 0 |
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160 | found = .FALSE. |
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161 | deriv_min = 2000000. |
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162 | ipos=0 |
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163 | jpos=0 |
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164 | ! |
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165 | DO WHILE(.NOT. found) |
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166 | ! |
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167 | r = r + 1 |
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168 | ! |
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169 | IF(i-r < 1 ) THEN |
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170 | lbi = 1 |
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171 | ubi = MIN(i+r,nx) |
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172 | ELSE IF(i+r > nx) THEN |
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173 | lbi = MAX(i-r,1) |
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174 | ubi = nx |
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175 | ELSE |
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176 | lbi = i-r |
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177 | ubi = i+r |
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178 | ENDIF |
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179 | ! |
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180 | IF(j-r < 1) THEN |
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181 | lbj = 1 |
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182 | ubj = MIN(j+r,ny) |
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183 | ELSE IF(j+r > ny) THEN |
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184 | lbj = MAX(j-r,1) |
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185 | ubj = ny |
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186 | ELSE |
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187 | lbj = j-r |
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188 | ubj = j+r |
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189 | ENDIF |
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190 | ! |
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191 | DO jj = lbj,ubj,ubj-lbj |
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192 | DO ii = lbi,ubi,ubi-lbi |
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193 | ! |
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194 | deriv = search_pts_h(ii,jj,k,i,j,k,tabin(:,:,1,1),mask,lon,lat) |
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195 | ! |
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196 | IF( ABS(deriv) < deriv_min ) THEN |
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197 | deriv_min = ABS(deriv) |
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198 | ipos = ii |
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199 | jpos = jj |
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200 | kpos = k |
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201 | ENDIF |
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202 | ! |
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203 | deriv = search_pts_v(ii,jj,k-1,i,j,k,tabinkm1,tabinkm2,mask,nav_lev,lon,lat) |
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204 | ! |
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205 | IF( ABS(deriv) < deriv_min ) THEN |
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206 | deriv_min = ABS(deriv) |
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207 | ipos = ii |
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208 | jpos = jj |
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209 | kpos = k-1 |
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210 | ENDIF |
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211 | ! |
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212 | END DO |
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213 | END DO |
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214 | ! |
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215 | ! |
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216 | IF( deriv_min < 2000000. ) THEN |
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217 | ! |
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218 | IF(kpos == k) tabin(i,j,1,1) = tabin(ipos,jpos,1,1) |
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219 | IF(kpos == k-1) tabin(i,j,1,1) = tabinkm1(ipos,jpos,1,1) |
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220 | found = .TRUE. |
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221 | newmask(i,j) = .TRUE. |
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222 | ELSE IF ((lbi == 1).AND.(ubi == nx).AND.(lbj == 1).AND.(ubj == ny)) THEN |
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223 | found = .TRUE. |
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224 | newmask(i,j) = .FALSE. |
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225 | ! |
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226 | ENDIF |
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227 | ! |
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228 | END DO !do while |
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229 | ! |
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230 | ENDIF |
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231 | ! |
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232 | END DO |
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233 | ! |
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234 | END DO |
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235 | ! |
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236 | DEALLOCATE(mask,lon,lat) |
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237 | ! |
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238 | END SUBROUTINE correct_field |
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239 | ! |
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240 | !************************************************************** |
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241 | ! end subroutine correct_field |
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242 | !************************************************************** |
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243 | ! |
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244 | SUBROUTINE correct_field_2d(detected_pts,tabin,G0,newmask,posvar) |
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245 | ! |
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246 | LOGICAL, DIMENSION(:,:) :: detected_pts |
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247 | LOGICAL, DIMENSION(:,:) :: newmask |
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248 | CHARACTER(*), OPTIONAL :: posvar |
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249 | LOGICAL :: found |
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250 | INTEGER :: k |
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251 | ! |
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252 | INTEGER :: i,j,ii,jj,nx,ny,n,lbi,ubi,lbj,ubj,ipos,jpos,r |
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253 | ! |
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254 | REAL*8, DIMENSION(:,:,:), ALLOCATABLE :: mask |
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255 | REAL*8, DIMENSION(:,:), ALLOCATABLE :: lon,lat |
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256 | REAL*8, DIMENSION(:,:,:) :: tabin |
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257 | REAL*8 :: deriv,deriv_min |
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258 | ! |
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259 | TYPE(Coordinates) :: G0 |
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260 | ! |
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261 | ! copy coarse grid mask in newmask |
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262 | ! |
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263 | mask = G0%tmask |
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264 | lon = G0%nav_lon |
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265 | lat = G0%nav_lat |
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266 | IF ( PRESENT(posvar) .AND. posvar == 'U' ) THEN |
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267 | WHERE(G0%umask(:,:,1) == 1. ) |
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268 | newmask(:,:) = .TRUE. |
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269 | ELSEWHERE |
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270 | newmask(:,:) = .FALSE. |
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271 | END WHERE |
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272 | ALLOCATE(mask(SIZE(G0%umask,1),SIZE(G0%umask,2),SIZE(G0%umask,3))) |
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273 | ALLOCATE(lat(SIZE(G0%umask,1),SIZE(G0%umask,2))) |
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274 | ALLOCATE(lon(SIZE(G0%umask,1),SIZE(G0%umask,2))) |
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275 | mask = G0%umask |
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276 | lat = G0%gphiu |
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277 | lon = G0%glamu |
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278 | ELSE IF ( PRESENT(posvar) .AND. posvar == 'V' ) THEN |
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279 | WHERE(G0%vmask(:,:,1) == 1. ) |
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280 | newmask(:,:) = .TRUE. |
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281 | ELSEWHERE |
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282 | newmask(:,:) = .FALSE. |
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283 | END WHERE |
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284 | ALLOCATE(mask(SIZE(G0%vmask,1),SIZE(G0%vmask,2),SIZE(G0%vmask,3))) |
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285 | ALLOCATE(lat(SIZE(G0%vmask,1),SIZE(G0%vmask,2))) |
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286 | ALLOCATE(lon(SIZE(G0%vmask,1),SIZE(G0%vmask,2))) |
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287 | mask = G0%vmask |
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288 | lat = G0%gphiv |
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289 | lon = G0%glamv |
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290 | ELSE |
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291 | WHERE(G0%tmask(:,:,1) == 1. ) |
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292 | newmask(:,:) = .TRUE. |
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293 | ELSEWHERE |
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294 | newmask(:,:) = .FALSE. |
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295 | END WHERE |
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296 | ALLOCATE(mask(SIZE(G0%tmask,1),SIZE(G0%tmask,2),SIZE(G0%tmask,3))) |
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297 | ALLOCATE(lat(SIZE(G0%tmask,1),SIZE(G0%tmask,2))) |
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298 | ALLOCATE(lon(SIZE(G0%tmask,1),SIZE(G0%tmask,2))) |
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299 | mask = G0%tmask |
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300 | lon = G0%nav_lon |
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301 | lat = G0%nav_lat |
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302 | ENDIF |
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303 | |
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304 | ! |
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305 | ! dimensions initialisation |
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306 | ! |
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307 | nx = SIZE(tabin,1) |
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308 | ny = SIZE(tabin,2) |
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309 | ! |
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310 | DO i = 1,nx |
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311 | ! |
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312 | DO j = 1,ny |
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313 | ! |
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314 | ! |
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315 | IF( detected_pts(i,j) ) THEN |
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316 | ! |
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317 | r = 0 |
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318 | found = .FALSE. |
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319 | deriv_min = 2000000. |
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320 | ipos=0 |
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321 | jpos=0 |
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322 | ! |
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323 | DO WHILE (.NOT. found ) |
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324 | |
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325 | ! |
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326 | r = r + 1 |
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327 | ! |
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328 | IF(i-r < 1 ) THEN |
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329 | lbi = 1 |
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330 | ubi = MIN(i+r,nx) |
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331 | ELSE IF(i+r > nx) THEN |
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332 | lbi = MAX(i-r,1) |
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333 | ubi = nx |
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334 | ELSE |
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335 | lbi = i-r |
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336 | ubi = i+r |
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337 | ENDIF |
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338 | ! |
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339 | IF(j-r < 1) THEN |
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340 | lbj = 1 |
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341 | ubj = MIN(j+r,ny) |
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342 | ELSE IF(j+r > ny) THEN |
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343 | lbj = MAX(j-r,1) |
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344 | ubj = ny |
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345 | ELSE |
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346 | lbj = j-r |
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347 | ubj = j+r |
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348 | ENDIF |
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349 | ! |
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350 | DO ii = lbi,ubi |
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351 | DO jj = lbj,ubj |
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352 | ! |
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353 | deriv = search_pts_h(ii,jj,1,i,j,1,tabin(:,:,1),mask,lon,lat) |
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354 | ! |
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355 | IF( ABS(deriv) < deriv_min ) THEN |
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356 | deriv_min = ABS(deriv) |
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357 | ipos = ii |
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358 | jpos = jj |
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359 | ENDIF |
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360 | ! |
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361 | END DO |
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362 | END DO |
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363 | ! |
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364 | ! |
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365 | IF( deriv_min < 2000000. ) THEN |
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366 | ! |
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367 | found = .TRUE. |
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368 | tabin(i,j,1) = tabin(ipos,jpos,1) |
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369 | newmask(i,j) = .TRUE. |
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370 | ! |
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371 | ENDIF |
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372 | ! |
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373 | END DO !do while |
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374 | ! |
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375 | ENDIF |
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376 | ! |
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377 | END DO |
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378 | ! |
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379 | END DO |
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380 | ! |
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381 | DEALLOCATE(mask,lon,lat) |
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382 | ! |
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383 | END SUBROUTINE correct_field_2d |
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384 | ! |
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385 | !************************************************************** |
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386 | ! function get_dist |
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387 | !************************************************************** |
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388 | ! |
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389 | |
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390 | ! |
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391 | REAL*8 FUNCTION get_dist(plat1,plon1,plat2,plon2) |
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392 | ! |
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393 | REAL*8 :: plat1,plon1,plat2,plon2 |
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394 | REAL*8 :: dist,ra,rad,rpi,lat,lon |
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395 | ! |
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396 | rpi = 3.141592653589793 |
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397 | rad = rpi/180. |
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398 | ra = 6371229. |
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399 | ! |
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400 | lat = plat2-plat1 |
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401 | lon = plon2-plon1 |
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402 | ! |
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403 | dist = ra * rad * SQRT( (COS(rad*(plat1+plat2)/2.)*lon)**2 + lat**2 ) |
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404 | get_dist = dist |
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405 | RETURN |
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406 | ! |
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407 | END FUNCTION get_dist |
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408 | |
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409 | ! |
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410 | ! |
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411 | !************************************************************** |
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412 | ! end function get_dist |
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413 | !************************************************************** |
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414 | ! |
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415 | ! |
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416 | !************************************************************** |
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417 | ! subroutine check_extrap |
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418 | !************************************************************** |
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419 | ! |
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420 | |
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421 | ! |
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422 | SUBROUTINE check_extrap(Grid,tabin,k) |
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423 | ! |
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424 | REAL*8, DIMENSION(:,:,:,:) :: tabin |
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425 | TYPE(Coordinates) :: Grid |
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426 | INTEGER :: i,j,k |
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427 | ! |
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428 | DO i = 2,SIZE(tabin,1)-1 |
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429 | DO j=2,SIZE(tabin,2)-1 |
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430 | ! |
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431 | IF( Grid%tmask(i,j,k) == 1. .AND. tabin(i,j,1,1)==0.) THEN |
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432 | ! |
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433 | WRITE(*,*) 'no masked point with value zero (',i,',',j,',',k,')' |
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434 | ! |
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435 | ENDIF |
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436 | |
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437 | END DO |
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438 | END DO |
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439 | ! |
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440 | END SUBROUTINE check_extrap |
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441 | |
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442 | ! |
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443 | ! |
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444 | !************************************************************** |
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445 | ! end subroutine check_extrap |
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446 | !************************************************************** |
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447 | ! |
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448 | !************************************************************** |
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449 | ! subroutine search_pts_h |
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450 | !************************************************************** |
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451 | ! |
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452 | REAL*8 FUNCTION search_pts_h(i,j,k,ipt,jpt,kpt,tabvar,mask,lon,lat) |
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453 | ! |
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454 | REAL*8 :: hx,hy,fx,fy |
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455 | REAL*8 :: h_x,h_y |
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456 | REAL*8, DIMENSION(:,:) :: tabvar |
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457 | INTEGER :: i,j,k,ipt,jpt,kpt,nx,ny |
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458 | LOGICAL :: foundx,foundy |
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459 | REAL*8, DIMENSION(:,:,:) :: mask |
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460 | REAL*8, DIMENSION(:,:) :: lon,lat |
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461 | ! |
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462 | ! |
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463 | foundx = .TRUE. |
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464 | foundy = .TRUE. |
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465 | ! |
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466 | nx = SIZE(tabvar,1) |
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467 | ny = SIZE(tabvar,2) |
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468 | ! |
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469 | IF( i==ipt .AND. j==jpt ) THEN |
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470 | search_pts_h = 2000000. |
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471 | RETURN |
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472 | ENDIF |
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473 | ! |
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474 | IF( mask(i,j,k) == 0. ) THEN |
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475 | search_pts_h = 2000000. |
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476 | RETURN |
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477 | ENDIF |
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478 | ! |
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479 | ! x direction |
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480 | ! |
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481 | IF(i+1<=nx .AND. i-1>=1) THEN |
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482 | IF(mask(i+1,j,k)==1. .AND. mask(i-1,j,k)==1.) THEN |
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483 | hx = get_dist(lat(i+1,j),lon(i+1,j),& |
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484 | lat(i-1,j),lon(i-1,j)) |
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485 | fx = (tabvar(i+1,j) - tabvar(i-1,j))/hx |
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486 | ELSE IF(mask(i+1,j,k)==1. .AND. mask(i-1,j,k)==0. .AND. mask(i,j,k)==1.) THEN |
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487 | hx = get_dist(lat(i+1,j),lon(i+1,j),& |
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488 | lat(i,j),lon(i,j)) |
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489 | fx = (tabvar(i+1,j) - tabvar(i,j))/hx |
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490 | ELSE IF(mask(i+1,j,k)==0. .AND. mask(i-1,j,k)==1. .AND. mask(i,j,k)==1.) THEN |
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491 | hx = get_dist(lat(i,j),lon(i,j),& |
---|
492 | lat(i-1,j),lon(i-1,j)) |
---|
493 | fx = (tabvar(i,j) - tabvar(i-1,j))/hx |
---|
494 | ELSE |
---|
495 | foundx = .FALSE. |
---|
496 | ENDIF |
---|
497 | ! |
---|
498 | ELSE IF(i+1<=nx .AND. i>=1) THEN |
---|
499 | ! |
---|
500 | IF(mask(i+1,j,k)==1. .AND. mask(i,j,k)==1.) THEN |
---|
501 | hx = get_dist(lat(i+1,j),lon(i+1,j),& |
---|
502 | lat(i,j),lon(i,j)) |
---|
503 | fx = (tabvar(i+1,j) - tabvar(i,j))/hx |
---|
504 | ELSE |
---|
505 | foundx = .FALSE. |
---|
506 | ENDIF |
---|
507 | ! |
---|
508 | ELSE IF(i<=nx .AND. i-1>=1) THEN |
---|
509 | ! |
---|
510 | IF(mask(i,j,k)==1. .AND. mask(i-1,j,k)==1.) THEN |
---|
511 | hx = get_dist(lat(i,j),lon(i,j),& |
---|
512 | lat(i-1,j),lon(i-1,j)) |
---|
513 | fx = (tabvar(i,j) - tabvar(i-1,j))/hx |
---|
514 | ELSE |
---|
515 | foundx = .FALSE. |
---|
516 | ENDIF |
---|
517 | ! |
---|
518 | ELSE |
---|
519 | foundy = .FALSE. |
---|
520 | ENDIF |
---|
521 | |
---|
522 | ! |
---|
523 | ! y direction |
---|
524 | ! |
---|
525 | IF(j+1<=ny .AND. j-1>=1) THEN |
---|
526 | IF( mask(i,j+1,k)==1. .AND. mask(i,j-1,k)==1. ) THEN |
---|
527 | hy = get_dist(lat(i,j+1),lon(i,j+1),& |
---|
528 | lat(i,j-1),lon(i,j-1)) |
---|
529 | fy = (tabvar(i,j+1) - tabvar(i,j-1))/hy |
---|
530 | ELSE IF( mask(i,j+1,k)==1. .AND. mask(i,j-1,k)==0. .AND. mask(i,j,k)==1.) THEN |
---|
531 | hy = get_dist(lat(i,j+1),lon(i,j+1),& |
---|
532 | lat(i,j),lon(i,j)) |
---|
533 | fy = (tabvar(i,j+1) - tabvar(i,j))/hy |
---|
534 | ELSE IF( mask(i,j+1,k)==0. .AND. mask(i,j-1,k)==1. .AND. mask(i,j,k)==1.) THEN |
---|
535 | hy = get_dist(lat(i,j),lon(i,j),& |
---|
536 | lat(i,j-1),lon(i,j-1)) |
---|
537 | fy = (tabvar(i,j) - tabvar(i,j-1))/hy |
---|
538 | ELSE |
---|
539 | foundy = .FALSE. |
---|
540 | ENDIF |
---|
541 | ! |
---|
542 | ELSE IF(j+1<=ny .AND. j>=1) THEN |
---|
543 | ! |
---|
544 | IF(mask(i,j+1,k)==1. .AND. mask(i,j,k)==1.) THEN |
---|
545 | hy = get_dist(lat(i,j+1),lon(i,j+1),& |
---|
546 | lat(i,j),lon(i,j)) |
---|
547 | fy = (tabvar(i,j+1) - tabvar(i,j))/hy |
---|
548 | ELSE |
---|
549 | foundy = .FALSE. |
---|
550 | ENDIF |
---|
551 | ! |
---|
552 | ELSE IF(j<=ny .AND. j-1>=1) THEN |
---|
553 | ! |
---|
554 | IF(mask(i,j,k)==1. .AND. mask(i,j-1,k)==1.) THEN |
---|
555 | hy = get_dist(lat(i,j),lon(i,j),& |
---|
556 | lat(i,j-1),lon(i,j-1)) |
---|
557 | fy = (tabvar(i,j) - tabvar(i,j-1))/hy |
---|
558 | ELSE |
---|
559 | foundy = .FALSE. |
---|
560 | ENDIF |
---|
561 | ! |
---|
562 | ELSE |
---|
563 | foundy = .FALSE. |
---|
564 | ENDIF |
---|
565 | ! |
---|
566 | h_x = get_dist(lat(ipt,jpt),lon(ipt,jpt),lat(ipt,jpt),lon(i,j)) |
---|
567 | h_y = get_dist(lat(ipt,jpt),lon(ipt,jpt),lat(i,j),lon(ipt,jpt)) |
---|
568 | ! |
---|
569 | IF(.NOT.foundx .AND. .NOT.foundy)THEN |
---|
570 | search_pts_h = 2000000. |
---|
571 | ELSE IF( foundx .AND. foundy) THEN |
---|
572 | search_pts_h = h_x * fx + h_y * fy |
---|
573 | ELSE IF( .NOT.foundx .AND. foundy .AND. h_y.NE.0.) THEN |
---|
574 | search_pts_h = h_y * fy |
---|
575 | ELSE IF( foundx .AND. .NOT.foundy .AND. h_x.NE.0.) THEN |
---|
576 | search_pts_h = h_x * fx |
---|
577 | ELSE |
---|
578 | search_pts_h = 2000000. |
---|
579 | ENDIF |
---|
580 | |
---|
581 | ! |
---|
582 | RETURN |
---|
583 | ! |
---|
584 | END FUNCTION search_pts_h |
---|
585 | ! |
---|
586 | !************************************************************** |
---|
587 | ! end subroutine search_pts_h |
---|
588 | !************************************************************** |
---|
589 | ! |
---|
590 | !************************************************************** |
---|
591 | ! subroutine search_pts_v |
---|
592 | !************************************************************** |
---|
593 | ! |
---|
594 | REAL*8 FUNCTION search_pts_v(i,j,k,ipt,jpt,kpt,tabvarkm1,tabvarkm2,mask,depth,lon,lat) |
---|
595 | ! |
---|
596 | REAL*8 :: hz,fz,dz,fh |
---|
597 | REAL*8, DIMENSION(:) :: depth |
---|
598 | REAL*8, DIMENSION(:,:,:,:) :: tabvarkm1,tabvarkm2 |
---|
599 | INTEGER :: i,j,k,ipt,jpt,kpt,nx,ny |
---|
600 | LOGICAL :: foundz |
---|
601 | REAL*8, DIMENSION(:,:,:) :: mask |
---|
602 | REAL*8, DIMENSION(:,:) :: lon,lat |
---|
603 | ! |
---|
604 | IF( k <= 2 .OR. mask(i,j,k) == 0. ) THEN |
---|
605 | ! |
---|
606 | search_pts_v = 2000000. |
---|
607 | RETURN |
---|
608 | ! |
---|
609 | ELSE IF( i==ipt .AND. j==jpt .AND. mask(i,j,k-1) == 1. .AND. mask(i,j,k-2) == 1. ) THEN |
---|
610 | ! |
---|
611 | dz = depth(k) - depth(k-1) |
---|
612 | hz = depth(kpt) - depth(k) |
---|
613 | search_pts_v = ((tabvarkm2(i,j,1,1) - tabvarkm1(i,j,1,1))/dz)*hz |
---|
614 | RETURN |
---|
615 | ! |
---|
616 | ELSE |
---|
617 | ! |
---|
618 | IF( mask(i,j,k) == 1. .AND. mask(i,j,k-1) == 1. ) THEN |
---|
619 | ! |
---|
620 | dz = depth(k) - depth(k-1) |
---|
621 | fz = (tabvarkm2(i,j,1,1) - tabvarkm1(i,j,1,1))/dz |
---|
622 | hz = depth(kpt) - depth(k) |
---|
623 | ! |
---|
624 | ELSE |
---|
625 | foundz = .FALSE. |
---|
626 | ENDIF |
---|
627 | ! |
---|
628 | fh = search_pts_h(i,j,k,ipt,jpt,k,tabvarkm1(:,:,1,1),mask,lon,lat) |
---|
629 | ! |
---|
630 | IF(foundz) THEN |
---|
631 | search_pts_v = hz * fz + fh |
---|
632 | RETURN |
---|
633 | ELSE |
---|
634 | search_pts_v = 2000000. |
---|
635 | RETURN |
---|
636 | ENDIF |
---|
637 | ! |
---|
638 | ENDIF |
---|
639 | WRITE(*,*) 'cas 2', search_pts_v |
---|
640 | ! |
---|
641 | RETURN |
---|
642 | ! |
---|
643 | END FUNCTION search_pts_v |
---|
644 | ! |
---|
645 | !************************************************************** |
---|
646 | ! end subroutine search_pts_v |
---|
647 | !************************************************************** |
---|
648 | ! |
---|
649 | ! |
---|
650 | END MODULE agrif_extrapolation |
---|