1 | MODULE dombat |
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2 | |
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3 | USE dom_oce ! ocean domain |
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4 | ! USE closea ! closed seas |
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5 | ! |
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6 | USE in_out_manager ! I/O manager |
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7 | USE iom ! I/O library |
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8 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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9 | USE lib_mpp ! distributed memory computing library |
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10 | USE agrif_modutil |
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11 | USE bilinear_interp |
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12 | |
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13 | IMPLICIT NONE |
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14 | PRIVATE |
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15 | |
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16 | PUBLIC dom_bat ! called by dom_zgr.F90 |
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17 | |
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18 | CONTAINS |
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19 | |
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20 | SUBROUTINE dom_bat |
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21 | |
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22 | INTEGER :: inum, isize, jsize, id, ji, jj |
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23 | INTEGER :: tabdim1, tabdim2, nxhr, nyhr, nxyhr |
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24 | INTEGER, DIMENSION(2) :: ddims |
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25 | INTEGER, DIMENSION(3) :: status |
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26 | INTEGER, DIMENSION(:,:), ALLOCATABLE :: trouble_points , vardep,mask_oce |
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27 | INTEGER :: iimin,iimax,jjmin,jjmax |
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28 | INTEGER, DIMENSION(1) :: i_min,i_max |
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29 | INTEGER, DIMENSION(1) ::j_min,j_max |
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30 | REAL(wp), DIMENSION(jpi,jpj) :: myglamf |
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31 | INTEGER,DIMENSION(:) ,POINTER :: src_add,dst_add => NULL() |
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32 | REAL(wp), DIMENSION(:) ,ALLOCATABLE :: vardep1d, lon_new1D,lat_new1D |
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33 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: bathy_new, lat_new, lon_new, bathy_test |
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34 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: coarselon, coarselat, coarsebathy |
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35 | REAL(wp) :: Cell_lonmin, Cell_lonmax, Cell_latmin, Cell_latmax |
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36 | LOGICAL :: identical_grids |
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37 | LOGICAL, DIMENSION(:,:), ALLOCATABLE :: masksrc |
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38 | REAL*8, DIMENSION(:,:),POINTER :: matrix,interpdata => NULL() |
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39 | LOGICAL :: lonlat_2D |
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40 | |
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41 | CHARACTER(32) :: bathyfile, bathyname, lonname,latname |
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42 | |
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43 | lonlat_2D=.false. |
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44 | |
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45 | bathyfile=TRIM(cn_topo) |
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46 | bathyname=TRIM(cn_bath) |
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47 | lonname=TRIM(cn_lon) |
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48 | latname=TRIM(cn_lat) |
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49 | |
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50 | CALL iom_open( bathyfile, inum, lagrif=.FALSE. ) |
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51 | id = iom_varid( inum, bathyname, ddims ) |
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52 | |
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53 | status=-1 |
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54 | ALLOCATE(lon_new (ddims(1),ddims(2)), STAT=status(1)) |
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55 | ALLOCATE(lat_new (ddims(1),ddims(2)), STAT=status(2)) |
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56 | ALLOCATE(bathy_new(ddims(1),ddims(2)), STAT=status(3)) |
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57 | IF( sum(status) /= 0 ) CALL ctl_stop( 'STOP', 'dom_bat : unable to allocate arrays' ) |
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58 | |
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59 | IF (lonlat_2D) THEN |
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60 | CALL iom_get ( inum, jpdom_unknown, lonname, lon_new ) |
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61 | CALL iom_get ( inum, jpdom_unknown, latname, lat_new ) |
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62 | ELSE |
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63 | ALLOCATE(lon_new1D(ddims(1)), lat_new1D(ddims(2))) |
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64 | CALL iom_get ( inum, jpdom_unknown, lonname, lon_new1D ) |
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65 | CALL iom_get ( inum, jpdom_unknown, latname, lat_new1D ) |
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66 | DO ji=1, ddims(1) |
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67 | lon_new(ji,:)=lon_new1D(ji) |
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68 | ENDDO |
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69 | DO ji=1, ddims(2) |
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70 | lat_new(:,ji)=lat_new1D(ji) |
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71 | ENDDO |
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72 | ENDIF |
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73 | CALL iom_get ( inum, jpdom_unknown, bathyname, bathy_new ) |
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74 | CALL iom_close (inum) |
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75 | WHERE (bathy_new > 0.) |
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76 | bathy_new=0. |
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77 | ENDWHERE |
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78 | bathy_new=-bathy_new |
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79 | |
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80 | ! Eventually add here a pre-selection of the area (coarselon/lat) |
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81 | i_min=10 ; j_min=10 |
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82 | i_max= ddims(1)-10 ; j_max=ddims(2)-10 |
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83 | |
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84 | tabdim1 = i_max(1) - i_min(1) + 1 |
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85 | tabdim2 = j_max(1) - j_min(1) + 1 |
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86 | ! |
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87 | |
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88 | ALLOCATE(coarselon(tabdim1,tabdim2)) |
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89 | ALLOCATE(coarselat(tabdim1,tabdim2)) |
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90 | ALLOCATE(coarsebathy(tabdim1,tabdim2)) |
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91 | ! |
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92 | WHERE( lon_new < 0. ) lon_new = lon_new + 360. |
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93 | myglamf=glamf |
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94 | WHERE( myglamf < 0. ) myglamf = myglamf + 360. |
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95 | |
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96 | coarselat(:,:) = lat_new (i_min(1):i_max(1), j_min(1):j_max(1)) |
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97 | coarselon (:,:) = lon_new (i_min(1):i_max(1), j_min(1):j_max(1)) |
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98 | coarsebathy(:,:) = bathy_new(i_min(1):i_max(1), j_min(1):j_max(1)) |
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99 | |
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100 | IF( nn_interp == 0 .OR. nn_interp == 1 ) THEN ! arithmetic or median averages |
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101 | ! ! ----------------------------- |
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102 | ALLOCATE(trouble_points(jpi,jpj)) |
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103 | trouble_points(:,:) = 0 |
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104 | ! |
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105 | DO jj = 2, jpj |
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106 | DO ji = 2, jpi |
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107 | ! |
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108 | ! fine grid cell extension |
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109 | Cell_lonmin = MIN(myglamf(ji-1,jj-1),myglamf(ji,jj-1),myglamf(ji,jj),myglamf(ji-1,jj)) |
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110 | Cell_lonmax = MAX(myglamf(ji-1,jj-1),myglamf(ji,jj-1),myglamf(ji,jj),myglamf(ji-1,jj)) |
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111 | Cell_latmin = MIN(gphif(ji-1,jj-1),gphif(ji,jj-1),gphif(ji,jj),gphif(ji-1,jj)) |
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112 | Cell_latmax = MAX(gphif(ji-1,jj-1),gphif(ji,jj-1),gphif(ji,jj),gphif(ji-1,jj)) |
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113 | ! |
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114 | ! look for points in G0 (bathy dataset) contained in the fine grid cells |
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115 | iimin = 1 |
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116 | DO WHILE( coarselon(iimin,1) < Cell_lonmin ) |
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117 | iimin = iimin + 1 |
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118 | ENDDO |
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119 | ! |
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120 | jjmin = 1 |
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121 | DO WHILE( coarselat(iimin,jjmin) < Cell_latmin ) |
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122 | jjmin = jjmin + 1 |
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123 | ENDDO |
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124 | ! |
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125 | iimax = iimin |
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126 | DO WHILE( coarselon(iimax,1) <= Cell_lonmax ) |
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127 | iimax = iimax + 1 |
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128 | iimax = MIN( iimax,SIZE(coarsebathy,1)) |
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129 | ENDDO |
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130 | ! |
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131 | jjmax = jjmin |
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132 | DO WHILE( coarselat(iimax,jjmax) <= Cell_latmax ) |
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133 | jjmax = jjmax + 1 |
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134 | jjmax = MIN( jjmax,SIZE(coarsebathy,2)) |
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135 | ENDDO |
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136 | ! |
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137 | IF( .NOT. Agrif_Root() ) THEN |
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138 | iimax = iimax-1 |
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139 | jjmax = jjmax-1 |
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140 | ELSE |
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141 | iimax = MAX(iimin,iimax-1) |
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142 | jjmax = MAX(jjmin,jjmax-1) |
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143 | ENDIF |
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144 | ! |
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145 | iimin = MAX( iimin,1 ) |
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146 | jjmin = MAX( jjmin,1 ) |
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147 | iimax = MIN( iimax,SIZE(coarsebathy,1)) |
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148 | jjmax = MIN( jjmax,SIZE(coarsebathy,2)) |
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149 | |
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150 | nxhr = iimax - iimin + 1 |
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151 | nyhr = jjmax - jjmin + 1 |
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152 | |
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153 | |
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154 | IF( nxhr == 0 .OR. nyhr == 0 ) THEN |
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155 | ! |
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156 | trouble_points(ji,jj) = 1 |
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157 | ! |
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158 | ELSE |
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159 | ! |
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160 | ALLOCATE( vardep(nxhr,nyhr), mask_oce(nxhr,nyhr) ) |
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161 | vardep(:,:) = coarsebathy(iimin:iimax,jjmin:jjmax) |
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162 | ! |
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163 | WHERE( vardep(:,:) .GT. 0. ) ; mask_oce = 1 ; |
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164 | ELSEWHERE ; mask_oce = 0 ; |
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165 | ENDWHERE |
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166 | ! |
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167 | nxyhr = nxhr*nyhr |
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168 | IF( SUM(mask_oce) < 0.5*(nxyhr) ) THEN ! if more than half of the points are on land then bathy fine = 0 |
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169 | bathy(ji,jj) = 0. |
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170 | ELSE |
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171 | IF( nn_interp == 0 ) THEN ! Arithmetic average |
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172 | bathy(ji,jj) = SUM( vardep(:,:) * mask_oce(:,:) ) / SUM( mask_oce(:,:) ) |
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173 | ELSE ! Median average |
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174 | ALLOCATE(vardep1d(nxyhr)) |
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175 | vardep1d = RESHAPE(vardep,(/ nxyhr /) ) |
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176 | !!CALL ssort(vardep1d,nxyhr) |
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177 | CALL quicksort(vardep1d,1,nxyhr) |
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178 | ! |
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179 | ! Calculate median |
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180 | IF (MOD(nxyhr,2) .NE. 0) THEN |
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181 | bathy(ji,jj) = vardep1d( nxyhr/2 + 1 ) |
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182 | ELSE |
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183 | bathy(ji,jj) = 0.5 * ( vardep1d(nxyhr/2) + vardep1d(nxyhr/2+1) ) |
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184 | END IF |
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185 | DEALLOCATE(vardep1d) |
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186 | ENDIF |
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187 | ENDIF |
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188 | DEALLOCATE (mask_oce,vardep) |
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189 | ! |
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190 | ENDIF |
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191 | ENDDO |
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192 | ENDDO |
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193 | |
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194 | IF( SUM( trouble_points ) > 0 ) THEN |
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195 | PRINT*,'too much empty cells, proceed to bilinear interpolation' |
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196 | nn_interp = 2 |
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197 | stop |
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198 | ENDIF |
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199 | ENDIF |
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200 | |
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201 | #undef MYTEST |
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202 | #ifdef MYTEST |
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203 | IF( nn_interp == 2) THEN ! Bilinear interpolation |
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204 | ! ! ----------------------------- |
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205 | identical_grids = .FALSE. |
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206 | |
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207 | IF( SIZE(coarselat,1) == jpi .AND. SIZE(coarselat,2) == jpj .AND. & |
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208 | SIZE(coarselon,1) == jpj .AND. SIZE(coarselon,2) == jpj ) THEN |
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209 | IF( MAXVAL( ABS(coarselat(:,:)- gphit(:,:)) ) < 0.0001 .AND. & |
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210 | MAXVAL( ABS(coarselon(:,:)- glamt(:,:)) ) < 0.0001 ) THEN |
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211 | PRINT*,'same grid between ', cn_topo,' and child domain' |
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212 | bathy = bathy_new |
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213 | identical_grids = .TRUE. |
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214 | ENDIF |
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215 | ENDIF |
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216 | |
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217 | IF( .NOT. identical_grids ) THEN |
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218 | |
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219 | ALLOCATE(masksrc(SIZE(bathy_new,1),SIZE(bathy_new,2))) |
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220 | ALLOCATE(bathy_test(jpi,jpj)) |
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221 | ! |
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222 | !Where(G0%bathy_meter.le.0.00001) |
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223 | ! masksrc = .false. |
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224 | !ElseWhere |
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225 | masksrc = .TRUE. |
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226 | !End where |
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227 | ! |
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228 | ! compute remapping matrix thanks to SCRIP package |
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229 | CALL get_remap_matrix(coarselat,gphit,coarselon,glamt,masksrc,matrix,src_add,dst_add) |
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230 | CALL make_remap(bathy_new,bathy_test,jpi,jpj,matrix,src_add,dst_add) |
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231 | ! |
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232 | bathy = bathy_test |
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233 | ! |
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234 | DEALLOCATE(masksrc) |
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235 | DEALLOCATE(bathy_test) |
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236 | |
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237 | ENDIF |
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238 | ! |
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239 | ENDIF |
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240 | #endif |
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241 | END SUBROUTINE dom_bat |
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242 | |
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243 | END MODULE dombat |
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