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