| 1 | !********************************************************************** |
|---|
| 2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
|---|
| 3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
|---|
| 4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
|---|
| 5 | ! * |
|---|
| 6 | ! This file is part of FLEXPART. * |
|---|
| 7 | ! * |
|---|
| 8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
|---|
| 9 | ! it under the terms of the GNU General Public License as published by* |
|---|
| 10 | ! the Free Software Foundation, either version 3 of the License, or * |
|---|
| 11 | ! (at your option) any later version. * |
|---|
| 12 | ! * |
|---|
| 13 | ! FLEXPART is distributed in the hope that it will be useful, * |
|---|
| 14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
|---|
| 15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
|---|
| 16 | ! GNU General Public License for more details. * |
|---|
| 17 | ! * |
|---|
| 18 | ! You should have received a copy of the GNU General Public License * |
|---|
| 19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
|---|
| 20 | !********************************************************************** |
|---|
| 21 | |
|---|
| 22 | subroutine convmix(itime) |
|---|
| 23 | ! i |
|---|
| 24 | !************************************************************** |
|---|
| 25 | !handles all the calculations related to convective mixing |
|---|
| 26 | !Petra Seibert, Bernd C. Krueger, Feb 2001 |
|---|
| 27 | !nested grids included, Bernd C. Krueger, May 2001 |
|---|
| 28 | ! |
|---|
| 29 | !Changes by Caroline Forster, April 2004 - February 2005: |
|---|
| 30 | ! convmix called every lsynctime seconds |
|---|
| 31 | !CHANGES by A. Stohl: |
|---|
| 32 | ! various run-time optimizations - February 2005 |
|---|
| 33 | !************************************************************** |
|---|
| 34 | |
|---|
| 35 | use flux_mod |
|---|
| 36 | use par_mod |
|---|
| 37 | use com_mod |
|---|
| 38 | use conv_mod |
|---|
| 39 | |
|---|
| 40 | implicit none |
|---|
| 41 | |
|---|
| 42 | integer :: igr,igrold, ipart, itime, ix, j, inest |
|---|
| 43 | integer :: ipconv |
|---|
| 44 | integer :: jy, kpart, ktop, ngrid,kz |
|---|
| 45 | integer :: igrid(maxpart), ipoint(maxpart), igridn(maxpart,maxnests) |
|---|
| 46 | |
|---|
| 47 | ! itime [s] current time |
|---|
| 48 | ! igrid(maxpart) horizontal grid position of each particle |
|---|
| 49 | ! igridn(maxpart,maxnests) dto. for nested grids |
|---|
| 50 | ! ipoint(maxpart) pointer to access particles according to grid position |
|---|
| 51 | |
|---|
| 52 | logical :: lconv |
|---|
| 53 | real :: x, y, xtn,ytn, ztold, delt |
|---|
| 54 | real :: dt1,dt2,dtt |
|---|
| 55 | integer :: mind1,mind2 |
|---|
| 56 | ! dt1,dt2,dtt,mind1,mind2 variables used for time interpolation |
|---|
| 57 | integer :: itage,nage |
|---|
| 58 | real,parameter :: eps=nxmax/3.e5 |
|---|
| 59 | |
|---|
| 60 | |
|---|
| 61 | !monitoring variables |
|---|
| 62 | !real sumconv,sumall |
|---|
| 63 | |
|---|
| 64 | |
|---|
| 65 | ! Calculate auxiliary variables for time interpolation |
|---|
| 66 | !***************************************************** |
|---|
| 67 | |
|---|
| 68 | dt1=real(itime-memtime(1)) |
|---|
| 69 | dt2=real(memtime(2)-itime) |
|---|
| 70 | dtt=1./(dt1+dt2) |
|---|
| 71 | mind1=memind(1) |
|---|
| 72 | mind2=memind(2) |
|---|
| 73 | delt=real(abs(lsynctime)) |
|---|
| 74 | |
|---|
| 75 | |
|---|
| 76 | lconv = .false. |
|---|
| 77 | |
|---|
| 78 | ! if no particles are present return after initialization |
|---|
| 79 | !******************************************************** |
|---|
| 80 | |
|---|
| 81 | if (numpart.le.0) return |
|---|
| 82 | |
|---|
| 83 | ! Assign igrid and igridn, which are pseudo grid numbers indicating particles |
|---|
| 84 | ! that are outside the part of the grid under consideration |
|---|
| 85 | ! (e.g. particles near the poles or particles in other nests). |
|---|
| 86 | ! Do this for all nests but use only the innermost nest; for all others |
|---|
| 87 | ! igrid shall be -1 |
|---|
| 88 | ! Also, initialize index vector ipoint |
|---|
| 89 | !************************************************************************ |
|---|
| 90 | |
|---|
| 91 | do ipart=1,numpart |
|---|
| 92 | igrid(ipart)=-1 |
|---|
| 93 | do j=numbnests,1,-1 |
|---|
| 94 | igridn(ipart,j)=-1 |
|---|
| 95 | end do |
|---|
| 96 | ipoint(ipart)=ipart |
|---|
| 97 | ! do not consider particles that are (yet) not part of simulation |
|---|
| 98 | if (itra1(ipart).ne.itime) goto 20 |
|---|
| 99 | x = xtra1(ipart) |
|---|
| 100 | y = ytra1(ipart) |
|---|
| 101 | |
|---|
| 102 | ! Determine which nesting level to be used |
|---|
| 103 | !********************************************************** |
|---|
| 104 | |
|---|
| 105 | ngrid=0 |
|---|
| 106 | do j=numbnests,1,-1 |
|---|
| 107 | if ( x.gt.xln(j)+eps .and. x.lt.xrn(j)-eps .and. & |
|---|
| 108 | y.gt.yln(j)+eps .and. y.lt.yrn(j)-eps ) then |
|---|
| 109 | ngrid=j |
|---|
| 110 | goto 23 |
|---|
| 111 | endif |
|---|
| 112 | end do |
|---|
| 113 | 23 continue |
|---|
| 114 | |
|---|
| 115 | ! Determine nested grid coordinates |
|---|
| 116 | !********************************** |
|---|
| 117 | |
|---|
| 118 | if (ngrid.gt.0) then |
|---|
| 119 | ! nested grids |
|---|
| 120 | xtn=(x-xln(ngrid))*xresoln(ngrid) |
|---|
| 121 | ytn=(y-yln(ngrid))*yresoln(ngrid) |
|---|
| 122 | ix=nint(xtn) |
|---|
| 123 | jy=nint(ytn) |
|---|
| 124 | igridn(ipart,ngrid) = 1 + jy*nxn(ngrid) + ix |
|---|
| 125 | else if(ngrid.eq.0) then |
|---|
| 126 | ! mother grid |
|---|
| 127 | ix=nint(x) |
|---|
| 128 | jy=nint(y) |
|---|
| 129 | igrid(ipart) = 1 + jy*nx + ix |
|---|
| 130 | endif |
|---|
| 131 | |
|---|
| 132 | 20 continue |
|---|
| 133 | end do |
|---|
| 134 | |
|---|
| 135 | ! sumall = 0. |
|---|
| 136 | ! sumconv = 0. |
|---|
| 137 | |
|---|
| 138 | !***************************************************************************** |
|---|
| 139 | ! 1. Now, do everything for the mother domain and, later, for all of the nested domains |
|---|
| 140 | ! While all particles have to be considered for redistribution, the Emanuel convection |
|---|
| 141 | ! scheme only needs to be called once for every grid column where particles are present. |
|---|
| 142 | ! Therefore, particles are sorted according to their grid position. Whenever a new grid |
|---|
| 143 | ! cell is encountered by looping through the sorted particles, the convection scheme is called. |
|---|
| 144 | !***************************************************************************** |
|---|
| 145 | |
|---|
| 146 | ! sort particles according to horizontal position and calculate index vector IPOINT |
|---|
| 147 | |
|---|
| 148 | call sort2(numpart,igrid,ipoint) |
|---|
| 149 | |
|---|
| 150 | ! Now visit all grid columns where particles are present |
|---|
| 151 | ! by going through the sorted particles |
|---|
| 152 | |
|---|
| 153 | igrold = -1 |
|---|
| 154 | do kpart=1,numpart |
|---|
| 155 | igr = igrid(kpart) |
|---|
| 156 | if (igr .eq. -1) goto 50 |
|---|
| 157 | ipart = ipoint(kpart) |
|---|
| 158 | ! sumall = sumall + 1 |
|---|
| 159 | if (igr .ne. igrold) then |
|---|
| 160 | ! we are in a new grid column |
|---|
| 161 | jy = (igr-1)/nx |
|---|
| 162 | ix = igr - jy*nx - 1 |
|---|
| 163 | |
|---|
| 164 | ! Interpolate all meteorological data needed for the convection scheme |
|---|
| 165 | psconv=(ps(ix,jy,1,mind1)*dt2+ps(ix,jy,1,mind2)*dt1)*dtt |
|---|
| 166 | tt2conv=(tt2(ix,jy,1,mind1)*dt2+tt2(ix,jy,1,mind2)*dt1)*dtt |
|---|
| 167 | td2conv=(td2(ix,jy,1,mind1)*dt2+td2(ix,jy,1,mind2)*dt1)*dtt |
|---|
| 168 | !!$ do kz=1,nconvlev+1 !old |
|---|
| 169 | do kz=1,nuvz-1 !bugfix |
|---|
| 170 | tconv(kz)=(tth(ix,jy,kz+1,mind1)*dt2+ & |
|---|
| 171 | tth(ix,jy,kz+1,mind2)*dt1)*dtt |
|---|
| 172 | qconv(kz)=(qvh(ix,jy,kz+1,mind1)*dt2+ & |
|---|
| 173 | qvh(ix,jy,kz+1,mind2)*dt1)*dtt |
|---|
| 174 | end do |
|---|
| 175 | |
|---|
| 176 | ! Calculate translocation matrix |
|---|
| 177 | call calcmatrix(lconv,delt,cbaseflux(ix,jy)) |
|---|
| 178 | igrold = igr |
|---|
| 179 | ktop = 0 |
|---|
| 180 | endif |
|---|
| 181 | |
|---|
| 182 | ! treat particle only if column has convection |
|---|
| 183 | if (lconv .eqv. .true.) then |
|---|
| 184 | ! assign new vertical position to particle |
|---|
| 185 | |
|---|
| 186 | ztold=ztra1(ipart) |
|---|
| 187 | call redist(ipart,ktop,ipconv) |
|---|
| 188 | ! if (ipconv.le.0) sumconv = sumconv+1 |
|---|
| 189 | |
|---|
| 190 | ! Calculate the gross fluxes across layer interfaces |
|---|
| 191 | !*************************************************** |
|---|
| 192 | |
|---|
| 193 | if (iflux.eq.1) then |
|---|
| 194 | itage=abs(itra1(ipart)-itramem(ipart)) |
|---|
| 195 | do nage=1,nageclass |
|---|
| 196 | if (itage.lt.lage(nage)) goto 37 |
|---|
| 197 | end do |
|---|
| 198 | 37 continue |
|---|
| 199 | |
|---|
| 200 | if (nage.le.nageclass) & |
|---|
| 201 | call calcfluxes(nage,ipart,real(xtra1(ipart)), & |
|---|
| 202 | real(ytra1(ipart)),ztold) |
|---|
| 203 | endif |
|---|
| 204 | |
|---|
| 205 | endif !(lconv .eqv. .true) |
|---|
| 206 | 50 continue |
|---|
| 207 | end do |
|---|
| 208 | |
|---|
| 209 | |
|---|
| 210 | !***************************************************************************** |
|---|
| 211 | ! 2. Nested domains |
|---|
| 212 | !***************************************************************************** |
|---|
| 213 | |
|---|
| 214 | ! sort particles according to horizontal position and calculate index vector IPOINT |
|---|
| 215 | |
|---|
| 216 | do inest=1,numbnests |
|---|
| 217 | do ipart=1,numpart |
|---|
| 218 | ipoint(ipart)=ipart |
|---|
| 219 | igrid(ipart) = igridn(ipart,inest) |
|---|
| 220 | enddo |
|---|
| 221 | call sort2(numpart,igrid,ipoint) |
|---|
| 222 | |
|---|
| 223 | ! Now visit all grid columns where particles are present |
|---|
| 224 | ! by going through the sorted particles |
|---|
| 225 | |
|---|
| 226 | igrold = -1 |
|---|
| 227 | do kpart=1,numpart |
|---|
| 228 | igr = igrid(kpart) |
|---|
| 229 | if (igr .eq. -1) goto 60 |
|---|
| 230 | ipart = ipoint(kpart) |
|---|
| 231 | ! sumall = sumall + 1 |
|---|
| 232 | if (igr .ne. igrold) then |
|---|
| 233 | ! we are in a new grid column |
|---|
| 234 | jy = (igr-1)/nxn(inest) |
|---|
| 235 | ix = igr - jy*nxn(inest) - 1 |
|---|
| 236 | |
|---|
| 237 | ! Interpolate all meteorological data needed for the convection scheme |
|---|
| 238 | psconv=(psn(ix,jy,1,mind1,inest)*dt2+ & |
|---|
| 239 | psn(ix,jy,1,mind2,inest)*dt1)*dtt |
|---|
| 240 | tt2conv=(tt2n(ix,jy,1,mind1,inest)*dt2+ & |
|---|
| 241 | tt2n(ix,jy,1,mind2,inest)*dt1)*dtt |
|---|
| 242 | td2conv=(td2n(ix,jy,1,mind1,inest)*dt2+ & |
|---|
| 243 | td2n(ix,jy,1,mind2,inest)*dt1)*dtt |
|---|
| 244 | !!$ do kz=1,nconvlev+1 !old |
|---|
| 245 | do kz=1,nuvz-1 !bugfix |
|---|
| 246 | tconv(kz)=(tthn(ix,jy,kz+1,mind1,inest)*dt2+ & |
|---|
| 247 | tthn(ix,jy,kz+1,mind2,inest)*dt1)*dtt |
|---|
| 248 | qconv(kz)=(qvhn(ix,jy,kz+1,mind1,inest)*dt2+ & |
|---|
| 249 | qvhn(ix,jy,kz+1,mind2,inest)*dt1)*dtt |
|---|
| 250 | end do |
|---|
| 251 | |
|---|
| 252 | ! calculate translocation matrix |
|---|
| 253 | !******************************* |
|---|
| 254 | call calcmatrix(lconv,delt,cbasefluxn(ix,jy,inest)) |
|---|
| 255 | igrold = igr |
|---|
| 256 | ktop = 0 |
|---|
| 257 | endif |
|---|
| 258 | |
|---|
| 259 | ! treat particle only if column has convection |
|---|
| 260 | if (lconv .eqv. .true.) then |
|---|
| 261 | ! assign new vertical position to particle |
|---|
| 262 | ztold=ztra1(ipart) |
|---|
| 263 | call redist(ipart,ktop,ipconv) |
|---|
| 264 | ! if (ipconv.le.0) sumconv = sumconv+1 |
|---|
| 265 | |
|---|
| 266 | ! Calculate the gross fluxes across layer interfaces |
|---|
| 267 | !*************************************************** |
|---|
| 268 | |
|---|
| 269 | if (iflux.eq.1) then |
|---|
| 270 | itage=abs(itra1(ipart)-itramem(ipart)) |
|---|
| 271 | do nage=1,nageclass |
|---|
| 272 | if (itage.lt.lage(nage)) goto 47 |
|---|
| 273 | end do |
|---|
| 274 | 47 continue |
|---|
| 275 | |
|---|
| 276 | if (nage.le.nageclass) & |
|---|
| 277 | call calcfluxes(nage,ipart,real(xtra1(ipart)), & |
|---|
| 278 | real(ytra1(ipart)),ztold) |
|---|
| 279 | endif |
|---|
| 280 | |
|---|
| 281 | endif !(lconv .eqv. .true.) |
|---|
| 282 | |
|---|
| 283 | |
|---|
| 284 | 60 continue |
|---|
| 285 | end do |
|---|
| 286 | end do |
|---|
| 287 | !-------------------------------------------------------------------------- |
|---|
| 288 | ! write(*,*)'############################################' |
|---|
| 289 | ! write(*,*)'TIME=',& |
|---|
| 290 | ! & itime |
|---|
| 291 | ! write(*,*)'fraction of particles under convection',& |
|---|
| 292 | ! & sumconv/(sumall+0.001) |
|---|
| 293 | ! write(*,*)'total number of particles',& |
|---|
| 294 | ! & sumall |
|---|
| 295 | ! write(*,*)'number of particles under convection',& |
|---|
| 296 | ! & sumconv |
|---|
| 297 | ! write(*,*)'############################################' |
|---|
| 298 | |
|---|
| 299 | return |
|---|
| 300 | end subroutine convmix |
|---|
