1 | MODULE init_unstructured_mod |
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2 | USE mpipara, ONLY : is_mpi_master |
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3 | USE data_unstructured_mod |
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4 | USE geometry, ONLY : de |
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5 | IMPLICIT NONE |
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6 | SAVE |
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7 | PRIVATE |
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8 | |
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9 | ! these buffers are used when reading from the grid file |
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10 | REAL(8), ALLOCATABLE :: Ddata_read1(:),Ddata_read2(:,:),Ddata_read3(:,:,:) |
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11 | INTEGER, ALLOCATABLE :: Idata_read1(:),Idata_read2(:,:),Idata_read3(:,:,:) |
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12 | |
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13 | CHARACTER(LEN=*),PARAMETER :: meshfile="input/mesh_information.nc" |
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14 | INTEGER :: id_nc ! NetCDF id of mesh file open by open_local_mesh_file |
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15 | |
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16 | PUBLIC :: open_local_mesh_file, read_local_mesh |
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17 | |
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18 | CONTAINS |
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19 | |
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20 | SUBROUTINE free_data_read() |
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21 | IF(ALLOCATED(Idata_read1)) DEALLOCATE(Idata_read1) |
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22 | IF(ALLOCATED(Idata_read2)) DEALLOCATE(Idata_read2) |
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23 | IF(ALLOCATED(Idata_read3)) DEALLOCATE(Idata_read3) |
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24 | IF(ALLOCATED(Ddata_read1)) DEALLOCATE(Ddata_read1) |
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25 | IF(ALLOCATED(Ddata_read2)) DEALLOCATE(Ddata_read2) |
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26 | IF(ALLOCATED(Ddata_read3)) DEALLOCATE(Ddata_read3) |
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27 | END SUBROUTINE free_data_read |
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28 | |
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29 | SUBROUTINE read_from_gridfile(id_nc, data_type, name) |
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30 | use netcdf_mod |
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31 | CHARACTER(*) :: data_type, name |
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32 | INTEGER :: id_nc, id_var, status |
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33 | INTEGER :: dim_1, dim_2, dim_3 |
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34 | INTEGER :: numDims, dimIDs(3) !max_var_dims |
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35 | |
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36 | !-------------------Reading variable------------------------------- |
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37 | status = nf90_inq_varid(id_nc, name,id_var) |
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38 | IF(status /= 0) THEN |
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39 | print *, "Not able to read variable from gridfile :", name |
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40 | STOP "Exit" |
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41 | ENDIF |
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42 | !inquire dimension |
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43 | status = nf90_inquire_variable(id_nc,id_var,dimids=dimIDs,ndims=numDims) |
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44 | status = nf90_inquire_dimension(id_nc, dimIDs(1), len = dim_1) |
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45 | status = nf90_inquire_dimension(id_nc, dimIDs(2), len = dim_2) |
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46 | status = nf90_inquire_dimension(id_nc, dimIDs(3), len = dim_3) |
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47 | SELECT CASE(numDims) |
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48 | CASE(3) |
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49 | print *,"Size of array, ",name,":", dim_1,dim_2,dim_3 |
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50 | CASE(2) |
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51 | print *,"Size of array, ",name,":", dim_1,dim_2 |
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52 | CASE DEFAULT |
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53 | print *,"Size of array, ",name,":", dim_1 |
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54 | END SELECT |
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55 | |
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56 | CALL free_data_read |
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57 | SELECT CASE(data_type) |
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58 | CASE('integer') |
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59 | SELECT CASE(numDims) |
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60 | CASE(3) |
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61 | allocate(Idata_read3(dim_1,dim_2,dim_3)) |
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62 | status = nf90_get_var(id_nc, id_var,Idata_read3) |
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63 | print *,"First value of array, ",name,":", Idata_read3(1,1,1) |
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64 | CASE(2) |
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65 | allocate(Idata_read2(dim_1,dim_2)) |
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66 | status = nf90_get_var(id_nc, id_var,Idata_read2) |
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67 | print *,"First value of array, ",name,":", Idata_read2(1,1) |
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68 | CASE DEFAULT |
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69 | allocate(Idata_read1(dim_1)) |
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70 | status = nf90_get_var(id_nc, id_var,Idata_read1) |
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71 | print *,"First value of array, ",name,":", Idata_read1(1) |
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72 | END SELECT |
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73 | CASE DEFAULT |
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74 | SELECT CASE(numDims) |
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75 | CASE(3) |
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76 | allocate(Ddata_read3(dim_1,dim_2,dim_3)) |
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77 | status = nf90_get_var(id_nc, id_var,Ddata_read3) |
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78 | print *,"First value of array, ",name,":", Ddata_read3(1,1,1) |
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79 | CASE(2) |
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80 | allocate(Ddata_read2(dim_1,dim_2)) |
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81 | status = nf90_get_var(id_nc, id_var,Ddata_read2) |
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82 | print *,"First value of array, ",name,":", Ddata_read2(1,1) |
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83 | CASE DEFAULT |
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84 | allocate(Ddata_read1(dim_1)) |
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85 | status = nf90_get_var(id_nc, id_var,Ddata_read1) |
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86 | print *,"First value of array, ",name,":", Ddata_read1(1) |
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87 | END SELECT |
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88 | END SELECT |
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89 | |
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90 | IF(status /= nf90_NoErr) THEN |
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91 | print *, "Error when reading from grid file : ", name |
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92 | STOP "Exit" |
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93 | ENDIF |
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94 | |
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95 | END SUBROUTINE read_from_gridfile |
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96 | |
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97 | |
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98 | SUBROUTINE open_local_mesh_file |
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99 | USE netcdf_mod |
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100 | CHARACTER(LEN= 80) :: description |
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101 | INTEGER :: ierr, status, descriptionLength |
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102 | |
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103 | PRINT *,"------------------ READING FILE " , meshfile, "----------------------- " |
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104 | !open and read the input file |
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105 | ierr = nf90_open(meshfile, NF90_NOWRITE, id_nc) |
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106 | if (ierr /= nf90_noerr) then |
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107 | print *, trim(nf90_strerror(ierr)) |
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108 | stop "Error reading file" |
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109 | end if |
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110 | |
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111 | status = nf90_inquire_attribute(id_nc, nf90_global, "description", len=descriptionLength) |
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112 | IF(status /= 0 .or. len(description) < descriptionLength) THEN |
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113 | print *, "Not enough space to put NetCDF attribute values." |
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114 | STOP "Error reading file" |
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115 | ENDIF |
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116 | |
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117 | !-------------------Reading global attributes----------------------- |
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118 | status = nf90_get_att(id_nc, nf90_global, "description", description) |
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119 | print *,"Data file description :",description |
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120 | |
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121 | CALL read_from_gridfile(id_nc, 'integer', 'primal_deg') |
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122 | primal_num = SIZE(Idata_read1) |
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123 | CALL read_from_gridfile(id_nc, 'integer', 'dual_deg') |
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124 | dual_num = SIZE(Idata_read1) |
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125 | CALL read_from_gridfile(id_nc, 'integer', 'trisk_deg') |
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126 | edge_num = SIZE(Idata_read1) |
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127 | END SUBROUTINE open_local_mesh_file |
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128 | |
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129 | |
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130 | SUBROUTINE read_local_mesh |
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131 | USE field_mod |
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132 | USE geometry, ONLY : lon_i, lat_i, lon_e, lat_e, ep_e |
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133 | IMPLICIT NONE |
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134 | INTEGER :: ij |
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135 | REAL(rstd), ALLOCATABLE :: angle_e(:) |
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136 | REAL(rstd) :: clon, slon, clat, slat, & ! COS/SIN of lon/lat |
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137 | elon(3), elat(3) ! lon/lat unit vectors |
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138 | |
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139 | !status = nf90_get_att(id_nc, nf90_global, "primal_num", primal_num) |
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140 | !status = nf90_get_att(id_nc, nf90_global, "dual_num", dual_num) |
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141 | !status = nf90_get_att(id_nc, nf90_global, "edge_num", edge_num) |
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142 | !print *,primal_num,dual_num,edge_num |
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143 | |
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144 | CALL read_from_gridfile(id_nc, 'integer', 'primal_deg') |
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145 | ALLOCATE(primal_deg, source = Idata_read1) |
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146 | CALL read_from_gridfile(id_nc, 'integer', 'primal_edge') |
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147 | ALLOCATE(primal_edge, source = Idata_read2) |
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148 | CALL read_from_gridfile(id_nc, 'integer', 'primal_ne') |
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149 | ALLOCATE(primal_ne, source = Idata_read2) |
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150 | CALL read_from_gridfile(id_nc, 'integer', 'dual_deg') |
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151 | ALLOCATE(dual_deg, source = Idata_read1) |
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152 | CALL read_from_gridfile(id_nc, 'integer', 'dual_edge') |
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153 | ALLOCATE(dual_edge, source = Idata_read2) |
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154 | CALL read_from_gridfile(id_nc, 'integer', 'dual_ne') |
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155 | ALLOCATE(dual_ne, source = Idata_read2) |
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156 | CALL read_from_gridfile(id_nc, 'integer', 'primal_vertex') |
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157 | ALLOCATE(primal_vertex, source = Idata_read2) |
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158 | CALL read_from_gridfile(id_nc, 'integer', 'left') |
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159 | ALLOCATE(left, source = Idata_read1) |
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160 | CALL read_from_gridfile(id_nc, 'integer', 'right') |
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161 | ALLOCATE(right, source = Idata_read1) |
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162 | CALL read_from_gridfile(id_nc, 'integer', 'up') |
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163 | ALLOCATE(up, source = Idata_read1) |
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164 | CALL read_from_gridfile(id_nc, 'integer', 'down') |
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165 | ALLOCATE(down, source = Idata_read1) |
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166 | CALL read_from_gridfile(id_nc, 'integer', 'trisk_deg') |
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167 | ALLOCATE(trisk_deg, source = Idata_read1) |
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168 | CALL read_from_gridfile(id_nc, 'integer', 'trisk') |
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169 | ALLOCATE(trisk, source = Idata_read2) |
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170 | CALL read_from_gridfile(id_nc, 'float', 'Ai') |
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171 | ALLOCATE(Ai, source = Ddata_read1) |
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172 | CALL read_from_gridfile(id_nc, 'float', 'Av') |
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173 | ALLOCATE(Av, source = Ddata_read1) |
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174 | CALL read_from_gridfile(id_nc, 'float', 'le_de') |
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175 | ALLOCATE(le_de, source = Ddata_read1) |
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176 | CALL read_from_gridfile(id_nc, 'float', 'le') |
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177 | ALLOCATE(le, source = Ddata_read1) |
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178 | CALL read_from_gridfile(id_nc, 'float', 'de') |
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179 | ALLOCATE(de, source = Ddata_read1) |
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180 | CALL read_from_gridfile(id_nc, 'float', 'Riv2') |
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181 | ALLOCATE(Riv2, source = Ddata_read2) |
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182 | CALL read_from_gridfile(id_nc, 'float', 'wee') |
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183 | ALLOCATE(wee, source = Ddata_read2) |
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184 | CALL read_from_gridfile(id_nc, 'float', 'fv') ! |
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185 | ALLOCATE(fv, source = Ddata_read1) |
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186 | CALL read_from_gridfile(id_nc, 'integer', 'dual_vertex') |
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187 | ALLOCATE(dual_vertex, source = Idata_read2) |
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188 | |
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189 | CALL read_from_gridfile(id_nc, 'float', 'lon_i') |
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190 | ALLOCATE(lon_i, source = Ddata_read1) |
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191 | CALL read_from_gridfile(id_nc, 'float', 'lat_i') |
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192 | ALLOCATE(lat_i, source = Ddata_read1) |
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193 | CALL read_from_gridfile(id_nc, 'float', 'lon_e') |
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194 | ALLOCATE(lon_e, source = Ddata_read1) |
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195 | CALL read_from_gridfile(id_nc, 'float', 'lat_e') |
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196 | ALLOCATE(lat_e, source = Ddata_read1) |
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197 | CALL read_from_gridfile(id_nc, 'float', 'angle_e') |
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198 | ALLOCATE(angle_e, source = Ddata_read1) |
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199 | |
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200 | CALL free_data_read ! free buffers after reading all data from grid file |
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201 | |
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202 | edge_num = SIZE(le_de) |
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203 | primal_num = SIZE(Ai) |
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204 | dual_num = SIZE(Av) |
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205 | max_primal_deg = SIZE(primal_edge,1) |
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206 | max_dual_deg = SIZE(dual_edge,1) |
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207 | max_trisk_deg = SIZE(trisk,1) |
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208 | |
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209 | ! now post-process some of the data we just read |
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210 | ALLOCATE(ep_e(edge_num,3)) |
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211 | DO ij=1,edge_num |
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212 | clon = COS(lon_e(ij)) |
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213 | slon = SIN(lon_e(ij)) |
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214 | clat = COS(lat_e(ij)) |
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215 | slat = SIN(lat_e(ij)) |
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216 | ! x,y,z = clat*clon, clat*slon, slat |
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217 | elon = (/ -slon, clon, 0. /) |
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218 | elat = (/ -slat*clon, -slat*slon, clat /) |
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219 | ep_e(ij,:) = COS(angle_e(ij))*elon + SIN(angle_e(ij))*elat |
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220 | END DO |
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221 | |
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222 | DEALLOCATE(angle_e) |
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223 | END SUBROUTINE read_local_mesh |
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224 | |
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225 | END MODULE init_unstructured_mod |
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