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 | subroutine convmix(itime,metdata_format) |
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23 | ! i |
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24 | !************************************************************** |
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25 | !handles all the calculations related to convective mixing |
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26 | !Petra Seibert, Bernd C. Krueger, Feb 2001 |
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27 | !nested grids included, Bernd C. Krueger, May 2001 |
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28 | ! |
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29 | !Changes by Caroline Forster, April 2004 - February 2005: |
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30 | ! convmix called every lsynctime seconds |
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31 | !CHANGES by A. Stohl: |
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32 | ! various run-time optimizations - February 2005 |
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33 | ! CHANGES by C. Forster, November 2005, NCEP GFS version |
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34 | ! in the ECMWF version convection is calculated on the |
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35 | ! original eta-levels |
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36 | ! in the GFS version convection is calculated on the |
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37 | ! FLEXPART levels |
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38 | ! |
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39 | ! Unified ECMWF and GFS builds |
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40 | ! Marian Harustak, 12.5.2017 |
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41 | ! - Merged convmix and convmix_gfs into one routine using if-then |
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42 | ! for meteo-type dependent code |
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43 | !************************************************************** |
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44 | |
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45 | use flux_mod |
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46 | use par_mod |
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47 | use com_mod |
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48 | use conv_mod |
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49 | use class_gribfile |
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50 | |
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51 | implicit none |
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52 | |
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53 | integer :: igr,igrold, ipart, itime, ix, j, inest |
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54 | integer :: ipconv |
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55 | integer :: jy, kpart, ktop, ngrid,kz |
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56 | integer :: igrid(maxpart), ipoint(maxpart), igridn(maxpart,maxnests) |
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57 | integer :: metdata_format |
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58 | |
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59 | ! itime [s] current time |
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60 | ! igrid(maxpart) horizontal grid position of each particle |
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61 | ! igridn(maxpart,maxnests) dto. for nested grids |
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62 | ! ipoint(maxpart) pointer to access particles according to grid position |
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63 | |
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64 | logical :: lconv |
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65 | real :: x, y, xtn,ytn, ztold, delt |
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66 | real :: dt1,dt2,dtt |
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67 | integer :: mind1,mind2 |
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68 | ! dt1,dt2,dtt,mind1,mind2 variables used for time interpolation |
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69 | integer :: itage,nage |
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70 | real,parameter :: eps=nxmax/3.e5 |
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71 | |
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72 | |
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73 | !monitoring variables |
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74 | !real sumconv,sumall |
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75 | |
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76 | |
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77 | ! Calculate auxiliary variables for time interpolation |
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78 | !***************************************************** |
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79 | |
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80 | dt1=real(itime-memtime(1)) |
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81 | dt2=real(memtime(2)-itime) |
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82 | dtt=1./(dt1+dt2) |
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83 | mind1=memind(1) |
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84 | mind2=memind(2) |
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85 | delt=real(abs(lsynctime)) |
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86 | |
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87 | |
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88 | lconv = .false. |
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89 | |
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90 | ! if no particles are present return after initialization |
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91 | !******************************************************** |
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92 | |
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93 | if (numpart.le.0) return |
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94 | |
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95 | ! Assign igrid and igridn, which are pseudo grid numbers indicating particles |
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96 | ! that are outside the part of the grid under consideration |
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97 | ! (e.g. particles near the poles or particles in other nests). |
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98 | ! Do this for all nests but use only the innermost nest; for all others |
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99 | ! igrid shall be -1 |
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100 | ! Also, initialize index vector ipoint |
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101 | !************************************************************************ |
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102 | |
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103 | do ipart=1,numpart |
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104 | igrid(ipart)=-1 |
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105 | do j=numbnests,1,-1 |
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106 | igridn(ipart,j)=-1 |
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107 | end do |
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108 | ipoint(ipart)=ipart |
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109 | ! do not consider particles that are (yet) not part of simulation |
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110 | if (itra1(ipart).ne.itime) goto 20 |
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111 | x = xtra1(ipart) |
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112 | y = ytra1(ipart) |
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113 | |
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114 | ! Determine which nesting level to be used |
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115 | !********************************************************** |
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116 | |
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117 | ngrid=0 |
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118 | if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then |
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119 | do j=numbnests,1,-1 |
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120 | if ( x.gt.xln(j)+eps .and. x.lt.xrn(j)-eps .and. & |
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121 | y.gt.yln(j)+eps .and. y.lt.yrn(j)-eps ) then |
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122 | ngrid=j |
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123 | goto 23 |
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124 | endif |
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125 | end do |
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126 | else |
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127 | do j=numbnests,1,-1 |
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128 | if ( x.gt.xln(j) .and. x.lt.xrn(j) .and. & |
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129 | y.gt.yln(j) .and. y.lt.yrn(j) ) then |
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130 | ngrid=j |
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131 | goto 23 |
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132 | endif |
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133 | end do |
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134 | endif |
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135 | 23 continue |
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136 | |
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137 | ! Determine nested grid coordinates |
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138 | !********************************** |
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139 | |
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140 | if (ngrid.gt.0) then |
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141 | ! nested grids |
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142 | xtn=(x-xln(ngrid))*xresoln(ngrid) |
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143 | ytn=(y-yln(ngrid))*yresoln(ngrid) |
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144 | ix=nint(xtn) |
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145 | jy=nint(ytn) |
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146 | igridn(ipart,ngrid) = 1 + jy*nxn(ngrid) + ix |
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147 | else if(ngrid.eq.0) then |
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148 | ! mother grid |
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149 | ix=nint(x) |
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150 | jy=nint(y) |
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151 | igrid(ipart) = 1 + jy*nx + ix |
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152 | endif |
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153 | |
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154 | 20 continue |
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155 | end do |
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156 | |
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157 | ! sumall = 0. |
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158 | ! sumconv = 0. |
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159 | |
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160 | !***************************************************************************** |
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161 | ! 1. Now, do everything for the mother domain and, later, for all of the nested domains |
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162 | ! While all particles have to be considered for redistribution, the Emanuel convection |
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163 | ! scheme only needs to be called once for every grid column where particles are present. |
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164 | ! Therefore, particles are sorted according to their grid position. Whenever a new grid |
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165 | ! cell is encountered by looping through the sorted particles, the convection scheme is called. |
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166 | !***************************************************************************** |
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167 | |
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168 | ! sort particles according to horizontal position and calculate index vector IPOINT |
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169 | |
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170 | call sort2(numpart,igrid,ipoint) |
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171 | |
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172 | ! Now visit all grid columns where particles are present |
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173 | ! by going through the sorted particles |
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174 | |
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175 | igrold = -1 |
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176 | do kpart=1,numpart |
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177 | igr = igrid(kpart) |
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178 | if (igr .eq. -1) goto 50 |
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179 | ipart = ipoint(kpart) |
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180 | ! sumall = sumall + 1 |
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181 | if (igr .ne. igrold) then |
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182 | ! we are in a new grid column |
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183 | jy = (igr-1)/nx |
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184 | ix = igr - jy*nx - 1 |
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185 | |
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186 | ! Interpolate all meteorological data needed for the convection scheme |
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187 | psconv=(ps(ix,jy,1,mind1)*dt2+ps(ix,jy,1,mind2)*dt1)*dtt |
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188 | tt2conv=(tt2(ix,jy,1,mind1)*dt2+tt2(ix,jy,1,mind2)*dt1)*dtt |
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189 | td2conv=(td2(ix,jy,1,mind1)*dt2+td2(ix,jy,1,mind2)*dt1)*dtt |
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190 | !!$ do kz=1,nconvlev+1 !old |
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191 | if (metdata_format.eq.GRIBFILE_CENTRE_ECMWF) then |
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192 | do kz=1,nuvz-1 !bugfix |
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193 | tconv(kz)=(tth(ix,jy,kz+1,mind1)*dt2+ & |
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194 | tth(ix,jy,kz+1,mind2)*dt1)*dtt |
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195 | qconv(kz)=(qvh(ix,jy,kz+1,mind1)*dt2+ & |
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196 | qvh(ix,jy,kz+1,mind2)*dt1)*dtt |
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197 | end do |
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198 | else |
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199 | do kz=1,nuvz-1 !bugfix |
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200 | pconv(kz)=(pplev(ix,jy,kz,mind1)*dt2+ & |
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201 | pplev(ix,jy,kz,mind2)*dt1)*dtt |
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202 | tconv(kz)=(tt(ix,jy,kz,mind1)*dt2+ & |
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203 | tt(ix,jy,kz,mind2)*dt1)*dtt |
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204 | qconv(kz)=(qv(ix,jy,kz,mind1)*dt2+ & |
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205 | qv(ix,jy,kz,mind2)*dt1)*dtt |
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206 | end do |
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207 | end if |
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208 | |
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209 | ! Calculate translocation matrix |
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210 | call calcmatrix(lconv,delt,cbaseflux(ix,jy),metdata_format) |
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211 | igrold = igr |
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212 | ktop = 0 |
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213 | endif |
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214 | |
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215 | ! treat particle only if column has convection |
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216 | if (lconv .eqv. .true.) then |
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217 | ! assign new vertical position to particle |
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218 | |
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219 | ztold=ztra1(ipart) |
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220 | call redist(ipart,ktop,ipconv) |
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221 | ! if (ipconv.le.0) sumconv = sumconv+1 |
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222 | |
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223 | ! Calculate the gross fluxes across layer interfaces |
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224 | !*************************************************** |
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225 | |
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226 | if (iflux.eq.1) then |
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227 | itage=abs(itra1(ipart)-itramem(ipart)) |
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228 | do nage=1,nageclass |
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229 | if (itage.lt.lage(nage)) goto 37 |
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230 | end do |
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231 | 37 continue |
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232 | |
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233 | if (nage.le.nageclass) & |
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234 | call calcfluxes(nage,ipart,real(xtra1(ipart)), & |
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235 | real(ytra1(ipart)),ztold) |
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236 | endif |
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237 | |
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238 | endif !(lconv .eqv. .true) |
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239 | 50 continue |
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240 | end do |
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241 | |
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242 | |
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243 | !***************************************************************************** |
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244 | ! 2. Nested domains |
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245 | !***************************************************************************** |
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246 | |
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247 | ! sort particles according to horizontal position and calculate index vector IPOINT |
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248 | |
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249 | do inest=1,numbnests |
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250 | do ipart=1,numpart |
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251 | ipoint(ipart)=ipart |
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252 | igrid(ipart) = igridn(ipart,inest) |
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253 | enddo |
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254 | call sort2(numpart,igrid,ipoint) |
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255 | |
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256 | ! Now visit all grid columns where particles are present |
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257 | ! by going through the sorted particles |
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258 | |
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259 | igrold = -1 |
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260 | do kpart=1,numpart |
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261 | igr = igrid(kpart) |
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262 | if (igr .eq. -1) goto 60 |
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263 | ipart = ipoint(kpart) |
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264 | ! sumall = sumall + 1 |
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265 | if (igr .ne. igrold) then |
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266 | ! we are in a new grid column |
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267 | jy = (igr-1)/nxn(inest) |
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268 | ix = igr - jy*nxn(inest) - 1 |
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269 | |
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270 | ! Interpolate all meteorological data needed for the convection scheme |
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271 | psconv=(psn(ix,jy,1,mind1,inest)*dt2+ & |
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272 | psn(ix,jy,1,mind2,inest)*dt1)*dtt |
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273 | tt2conv=(tt2n(ix,jy,1,mind1,inest)*dt2+ & |
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274 | tt2n(ix,jy,1,mind2,inest)*dt1)*dtt |
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275 | td2conv=(td2n(ix,jy,1,mind1,inest)*dt2+ & |
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276 | td2n(ix,jy,1,mind2,inest)*dt1)*dtt |
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277 | !!$ do kz=1,nconvlev+1 !old |
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278 | do kz=1,nuvz-1 !bugfix |
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279 | tconv(kz)=(tthn(ix,jy,kz+1,mind1,inest)*dt2+ & |
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280 | tthn(ix,jy,kz+1,mind2,inest)*dt1)*dtt |
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281 | qconv(kz)=(qvhn(ix,jy,kz+1,mind1,inest)*dt2+ & |
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282 | qvhn(ix,jy,kz+1,mind2,inest)*dt1)*dtt |
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283 | end do |
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284 | |
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285 | ! calculate translocation matrix |
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286 | !******************************* |
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287 | call calcmatrix(lconv,delt,cbasefluxn(ix,jy,inest),metdata_format) |
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288 | igrold = igr |
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289 | ktop = 0 |
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290 | endif |
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291 | |
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292 | ! treat particle only if column has convection |
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293 | if (lconv .eqv. .true.) then |
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294 | ! assign new vertical position to particle |
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295 | ztold=ztra1(ipart) |
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296 | call redist(ipart,ktop,ipconv) |
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297 | ! if (ipconv.le.0) sumconv = sumconv+1 |
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298 | |
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299 | ! Calculate the gross fluxes across layer interfaces |
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300 | !*************************************************** |
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301 | |
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302 | if (iflux.eq.1) then |
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303 | itage=abs(itra1(ipart)-itramem(ipart)) |
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304 | do nage=1,nageclass |
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305 | if (itage.lt.lage(nage)) goto 47 |
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306 | end do |
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307 | 47 continue |
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308 | |
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309 | if (nage.le.nageclass) & |
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310 | call calcfluxes(nage,ipart,real(xtra1(ipart)), & |
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311 | real(ytra1(ipart)),ztold) |
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312 | endif |
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313 | |
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314 | endif !(lconv .eqv. .true.) |
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315 | |
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316 | |
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317 | 60 continue |
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318 | end do |
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319 | end do |
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320 | !-------------------------------------------------------------------------- |
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321 | ! write(*,*)'############################################' |
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322 | ! write(*,*)'TIME=',& |
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323 | ! & itime |
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324 | ! write(*,*)'fraction of particles under convection',& |
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325 | ! & sumconv/(sumall+0.001) |
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326 | ! write(*,*)'total number of particles',& |
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327 | ! & sumall |
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328 | ! write(*,*)'number of particles under convection',& |
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329 | ! & sumconv |
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330 | ! write(*,*)'############################################' |
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331 | |
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332 | return |
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333 | end subroutine convmix |
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