[2136] | 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),& |
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| 513 | lat(i,j),lon(i,j)) |
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| 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)) |
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| 528 | fy = (tabvar(i,j+1) - tabvar(i,j))/hy |
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| 529 | ELSE |
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| 530 | foundy = .FALSE. |
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| 531 | ENDIF |
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| 532 | ! |
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| 533 | ELSE IF(j<=ny .AND. j-1>=1) THEN |
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| 534 | ! |
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| 535 | IF(mask(i,j,k)==1. .AND. mask(i,j-1,k)==1.) THEN |
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| 536 | hy = get_dist(lat(i,j),lon(i,j),& |
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| 537 | lat(i,j-1),lon(i,j-1)) |
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| 538 | fy = (tabvar(i,j) - tabvar(i,j-1))/hy |
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| 539 | ELSE |
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| 540 | foundy = .FALSE. |
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| 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)) |
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| 548 | h_y = get_dist(lat(ipt,jpt),lon(ipt,jpt),lat(i,j),lon(ipt,jpt)) |
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| 549 | ! |
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| 550 | IF(.NOT.foundx .AND. .NOT.foundy)THEN |
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| 551 | search_pts_h = 2000000. |
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| 552 | ELSE IF( foundx .AND. foundy) THEN |
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| 553 | search_pts_h = h_x * fx + h_y * fy |
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| 554 | ELSE IF( .NOT.foundx .AND. foundy .AND. h_y.NE.0.) THEN |
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| 555 | search_pts_h = h_y * fy |
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| 556 | ELSE IF( foundx .AND. .NOT.foundy .AND. h_x.NE.0.) THEN |
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| 557 | search_pts_h = h_x * fx |
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| 558 | ELSE |
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| 559 | search_pts_h = 2000000. |
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| 560 | ENDIF |
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| 561 | |
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| 562 | ! |
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| 563 | RETURN |
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| 564 | ! |
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| 565 | END FUNCTION search_pts_h |
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| 566 | ! |
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| 567 | !************************************************************** |
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| 568 | ! end subroutine search_pts_h |
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| 569 | !************************************************************** |
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| 570 | ! |
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| 571 | !************************************************************** |
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| 572 | ! subroutine search_pts_v |
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| 573 | !************************************************************** |
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| 574 | ! |
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| 575 | REAL*8 FUNCTION search_pts_v(i,j,k,ipt,jpt,kpt,tabvarkm1,tabvarkm2,mask,depth,lon,lat) |
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| 576 | ! |
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| 577 | REAL*8 :: hz,fz,dz,fh |
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| 578 | REAL*8, DIMENSION(:) :: depth |
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| 579 | REAL*8, DIMENSION(:,:,:,:) :: tabvarkm1,tabvarkm2 |
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| 580 | INTEGER :: i,j,k,ipt,jpt,kpt,nx,ny |
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| 581 | LOGICAL :: foundz |
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| 582 | REAL*8, DIMENSION(:,:,:) :: mask |
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| 583 | REAL*8, DIMENSION(:,:) :: lon,lat |
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| 584 | ! |
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| 585 | IF( k <= 2 .OR. mask(i,j,k) == 0. ) THEN |
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| 586 | ! |
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| 587 | search_pts_v = 2000000. |
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| 588 | RETURN |
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| 589 | ! |
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| 590 | ELSE IF( i==ipt .AND. j==jpt .AND. mask(i,j,k-1) == 1. .AND. mask(i,j,k-2) == 1. ) THEN |
---|
| 591 | ! |
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| 592 | dz = depth(k) - depth(k-1) |
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| 593 | hz = depth(kpt) - depth(k) |
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| 594 | search_pts_v = ((tabvarkm2(i,j,1,1) - tabvarkm1(i,j,1,1))/dz)*hz |
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| 595 | RETURN |
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| 596 | ! |
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| 597 | ELSE |
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| 598 | ! |
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| 599 | IF( mask(i,j,k) == 1. .AND. mask(i,j,k-1) == 1. ) THEN |
---|
| 600 | ! |
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| 601 | dz = depth(k) - depth(k-1) |
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| 602 | fz = (tabvarkm2(i,j,1,1) - tabvarkm1(i,j,1,1))/dz |
---|
| 603 | hz = depth(kpt) - depth(k) |
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| 604 | ! |
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| 605 | ELSE |
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| 606 | foundz = .FALSE. |
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| 607 | ENDIF |
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| 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 |
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| 614 | ELSE |
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| 615 | search_pts_v = 2000000. |
---|
| 616 | RETURN |
---|
| 617 | ENDIF |
---|
| 618 | ! |
---|
| 619 | ENDIF |
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| 620 | WRITE(*,*) 'cas 2', search_pts_v |
---|
| 621 | ! |
---|
| 622 | RETURN |
---|
| 623 | ! |
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| 624 | END FUNCTION search_pts_v |
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| 625 | ! |
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| 626 | !************************************************************** |
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| 627 | ! end subroutine search_pts_v |
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| 628 | !************************************************************** |
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| 629 | ! |
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| 630 | ! |
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| 631 | END MODULE agrif_extrapolation |
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