1 | !********************************************************************** |
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2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
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3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
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4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
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5 | ! * |
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6 | ! This file is part of FLEXPART. * |
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7 | ! * |
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8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
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9 | ! it under the terms of the GNU General Public License as published by* |
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10 | ! the Free Software Foundation, either version 3 of the License, or * |
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11 | ! (at your option) any later version. * |
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12 | ! * |
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13 | ! FLEXPART is distributed in the hope that it will be useful, * |
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14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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16 | ! GNU General Public License for more details. * |
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17 | ! * |
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18 | ! You should have received a copy of the GNU General Public License * |
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19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
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20 | !********************************************************************** |
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21 | |
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22 | program flexpart |
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23 | |
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24 | !***************************************************************************** |
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25 | ! * |
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26 | ! This is the Lagrangian Particle Dispersion Model FLEXPART. * |
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27 | ! The main program manages the reading of model run specifications, etc. * |
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28 | ! All actual computing is done within subroutine timemanager. * |
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29 | ! * |
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30 | ! Author: A. Stohl * |
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31 | ! * |
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32 | ! 18 May 1996 * |
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33 | ! * |
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34 | !***************************************************************************** |
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35 | ! * |
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36 | ! Variables: * |
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37 | ! * |
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38 | ! Constants: * |
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39 | ! * |
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40 | !***************************************************************************** |
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41 | |
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42 | use point_mod |
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43 | use par_mod |
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44 | use com_mod |
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45 | use conv_mod |
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46 | |
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47 | implicit none |
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48 | |
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49 | integer :: i,j,ix,jy,inest |
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50 | integer :: idummy = -320 |
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51 | |
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52 | integer :: metdata_format = unknown_metdata |
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53 | |
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54 | #ifdef TESTUSEGETFPFIELDS |
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55 | ! Data structures used to pirate the data structures filled from |
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56 | ! pathnames and AVAILABLE and point to test .fp binary files. |
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57 | |
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58 | integer :: idx_wf ! Stores the index number of the met/.fp file |
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59 | |
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60 | ! Full path to the .fp files location |
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61 | !character(len=*), parameter :: FPDIR = '/home/morton/basic_ec_nc_testing/' |
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62 | character(len=*), parameter :: FPDIR = '/home/morton/' |
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63 | !character(len=*), parameter :: FPDIR = '/home/morton/FPForward/' |
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64 | !character(len=*), parameter :: FPDIR = '/home/morton/FPTinyFwd/' |
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65 | !character(len=*), parameter :: FPDIR = '/home/morton/ecmwf_tiny_fp/' |
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66 | |
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67 | character(len=512) :: fpname ! Stores name of a single .fp file |
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68 | #endif |
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69 | |
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70 | ! Generate a large number of random numbers |
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71 | !****************************************** |
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72 | |
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73 | do i=1,maxrand-1,2 |
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74 | call gasdev1(idummy,rannumb(i),rannumb(i+1)) |
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75 | end do |
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76 | call gasdev1(idummy,rannumb(maxrand),rannumb(maxrand-1)) |
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77 | |
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78 | ! Print the GPL License statement |
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79 | !******************************************************* |
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80 | #if defined CTBTO |
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81 | print*,'Welcome to FLEXPART Version 9.0 CTBTO' |
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82 | #else |
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83 | print*,'Welcome to FLEXPART Version 9.0' |
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84 | #endif |
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85 | |
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86 | print*,'FLEXPART is free software released under the GNU Genera'// & |
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87 | 'l Public License.' |
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88 | |
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89 | ! Read the pathnames where input/output files are stored |
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90 | !******************************************************* |
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91 | |
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92 | call readpaths |
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93 | |
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94 | ! Read the user specifications for the current model run |
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95 | !******************************************************* |
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96 | |
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97 | call readcommand |
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98 | |
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99 | |
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100 | ! Read the age classes to be used |
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101 | !******************************** |
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102 | |
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103 | call readageclasses |
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104 | |
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105 | |
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106 | ! Read, which wind fields are available within the modelling period |
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107 | !****************************************************************** |
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108 | |
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109 | call readavailable |
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110 | |
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111 | |
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112 | |
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113 | |
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114 | |
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115 | #ifdef TESTUSEGETFPFIELDS |
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116 | ! THIS IS ONLY USED FOR TESTING |
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117 | ! Hard code the path to .fp binary files into the data structures as if they |
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118 | ! were read in from pathnames and the AVAILABLE file up above in |
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119 | ! readpaths() and readavailable(). In short, this replaces the path and |
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120 | ! names of the GRIB met files with those of the .fp binary files. |
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121 | ! THIS IS ONLY USED FOR TESTING |
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122 | |
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123 | ! I think it might be problematic that the AVAILABLE file just might have |
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124 | ! more files than there are .fp files, because the generation of the .fp |
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125 | ! files may have taken place with a subset of the full AVAILABLE file list. |
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126 | |
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127 | ! These variables, used below, come from com_mod |
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128 | ! |
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129 | ! --- numbwf, wfname, path, length |
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130 | |
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131 | ! This test code needs to come after gridcheck() and gridcheck_nests(), since |
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132 | ! at the time those are called, the data structures still need to hold path |
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133 | ! names to GRIB files |
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134 | |
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135 | print *, 'Before overwriting...' |
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136 | print *, 'path(3): ', path(3) |
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137 | print *, 'length(3): ', length(3) |
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138 | |
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139 | ! Get and store the base name of the metfiles read in from AVAILABLE |
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140 | DO idx_wf = 1, numbwf |
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141 | wfname(idx_wf) = TRIM(wfname(idx_wf)) |
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142 | PRINT *, wfname(idx_wf) |
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143 | END DO |
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144 | |
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145 | ! The values in path and length arrays were meant to store met file path |
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146 | ! and length of path. Replace with the .fp file path and length of path |
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147 | path(3) = FPDIR |
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148 | length(3) = LEN(TRIM(path(3))) |
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149 | |
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150 | print *, 'After overwriting...' |
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151 | print *, 'path(3): ', path(3) |
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152 | print *, 'length(3): ', length(3) |
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153 | |
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154 | ! Add the .fp extension to each of the met file base names |
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155 | DO idx_wf = 1, numbwf |
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156 | fpname = TRIM(wfname(idx_wf)) // ".fp" |
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157 | wfname(idx_wf) = TRIM(fpname) |
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158 | PRINT *, wfname(idx_wf) |
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159 | END DO |
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160 | |
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161 | ! At this point, the path and filename data structures have been overwritten |
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162 | ! to point to the .fp files, rather than the metfiles |
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163 | |
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164 | !!!!!!!!!!!!!!! CALL TO fpgridcheck() |
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165 | CALL fpgridcheck |
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166 | #else |
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167 | |
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168 | if ( preprocessed_metdata.eq.1 ) then |
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169 | call fpgridcheck |
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170 | else |
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171 | ! Detect metdata format |
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172 | !****************************************************************** |
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173 | call detectformat(metdata_format) |
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174 | |
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175 | if (metdata_format.eq.ecmwf_metdata) then |
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176 | print*,'ECMWF metdata detected' |
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177 | elseif (metdata_format.eq.gfs_metdata) then |
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178 | print*,'NCEP metdata detected' |
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179 | else |
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180 | stop 'Unknown metdata format' |
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181 | endif |
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182 | |
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183 | ! Read the model grid specifications, |
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184 | ! both for the mother domain and eventual nests |
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185 | !********************************************** |
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186 | if (metdata_format.eq.ecmwf_metdata) call gridcheck_ecmwf |
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187 | if (metdata_format.eq.gfs_metdata) call gridcheck_gfs |
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188 | call gridcheck_nests |
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189 | endif |
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190 | #endif |
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191 | |
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192 | ! Read the output grid specifications |
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193 | !************************************ |
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194 | call readoutgrid |
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195 | if (nested_output.eq.1) call readoutgrid_nest |
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196 | |
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197 | |
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198 | ! Read the receptor points for which extra concentrations are to be calculated |
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199 | !***************************************************************************** |
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200 | call readreceptors |
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201 | |
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202 | |
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203 | ! Read the physico-chemical species property table |
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204 | !************************************************* |
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205 | !SEC: now only needed SPECIES are read in readreleases.f |
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206 | !call readspecies |
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207 | |
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208 | |
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209 | ! Read the landuse inventory |
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210 | !*************************** |
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211 | call readlanduse |
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212 | |
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213 | |
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214 | ! Assign fractional cover of landuse classes to each ECMWF grid point |
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215 | !******************************************************************** |
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216 | call assignland |
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217 | |
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218 | |
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219 | |
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220 | ! Read the coordinates of the release locations |
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221 | !********************************************** |
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222 | |
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223 | call readreleases |
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224 | |
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225 | ! Read and compute surface resistances to dry deposition of gases |
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226 | !**************************************************************** |
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227 | |
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228 | call readdepo |
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229 | |
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230 | |
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231 | ! Convert the release point coordinates from geografical to grid coordinates |
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232 | !*************************************************************************** |
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233 | |
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234 | call coordtrafo |
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235 | |
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236 | |
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237 | ! Initialize all particles to non-existent |
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238 | !***************************************** |
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239 | |
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240 | do j=1,maxpart |
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241 | itra1(j)=-999999999 |
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242 | end do |
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243 | |
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244 | ! For continuation of previous run, read in particle positions |
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245 | !************************************************************* |
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246 | |
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247 | if (ipin.eq.1) then |
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248 | call readpartpositions |
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249 | else |
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250 | numpart=0 |
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251 | numparticlecount=0 |
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252 | endif |
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253 | |
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254 | |
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255 | ! Calculate volume, surface area, etc., of all output grid cells |
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256 | ! Allocate fluxes and OHfield if necessary |
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257 | !*************************************************************** |
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258 | |
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259 | call outgrid_init |
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260 | if (nested_output.eq.1) call outgrid_init_nest |
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261 | |
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262 | |
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263 | ! Read the OH field |
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264 | !****************** |
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265 | |
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266 | if (OHREA.eqv..TRUE.) & |
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267 | call readOHfield |
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268 | |
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269 | ! Write basic information on the simulation to a file "header" |
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270 | ! and open files that are to be kept open throughout the simulation |
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271 | !****************************************************************** |
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272 | |
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273 | call writeheader |
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274 | if (nested_output.eq.1) call writeheader_nest |
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275 | open(unitdates,file=path(2)(1:length(2))//'dates') |
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276 | call openreceptors |
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277 | if ((iout.eq.4).or.(iout.eq.5)) call openouttraj |
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278 | |
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279 | |
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280 | ! Releases can only start and end at discrete times (multiples of lsynctime) |
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281 | !*************************************************************************** |
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282 | |
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283 | do i=1,numpoint |
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284 | ireleasestart(i)=nint(real(ireleasestart(i))/ & |
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285 | real(lsynctime))*lsynctime |
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286 | ireleaseend(i)=nint(real(ireleaseend(i))/ & |
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287 | real(lsynctime))*lsynctime |
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288 | end do |
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289 | |
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290 | |
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291 | ! Initialize cloud-base mass fluxes for the convection scheme |
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292 | !************************************************************ |
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293 | |
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294 | do jy=0,nymin1 |
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295 | do ix=0,nxmin1 |
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296 | cbaseflux(ix,jy)=0. |
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297 | end do |
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298 | end do |
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299 | do inest=1,numbnests |
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300 | do jy=0,nyn(inest)-1 |
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301 | do ix=0,nxn(inest)-1 |
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302 | cbasefluxn(ix,jy,inest)=0. |
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303 | end do |
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304 | end do |
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305 | end do |
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306 | |
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307 | |
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308 | ! Calculate particle trajectories |
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309 | !******************************** |
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310 | |
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311 | |
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312 | call timemanager(metdata_format) |
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313 | |
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314 | |
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315 | write(*,*) 'CONGRATULATIONS: YOU HAVE SUCCESSFULLY COMPLETED A FLE& |
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316 | &XPART MODEL RUN!' |
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317 | |
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318 | end program flexpart |
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