| 1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
|---|
| 2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
|---|
| 3 | |
|---|
| 4 | subroutine init_domainfill |
|---|
| 5 | ! |
|---|
| 6 | !***************************************************************************** |
|---|
| 7 | ! * |
|---|
| 8 | ! Initializes particles equally distributed over the first release location * |
|---|
| 9 | ! specified in file RELEASES. This box is assumed to be the domain for doing * |
|---|
| 10 | ! domain-filling trajectory calculations. * |
|---|
| 11 | ! All particles carry the same amount of mass which alltogether comprises the* |
|---|
| 12 | ! mass of air within the box. * |
|---|
| 13 | ! * |
|---|
| 14 | ! Author: A. Stohl * |
|---|
| 15 | ! * |
|---|
| 16 | ! 15 October 2002 * |
|---|
| 17 | ! * |
|---|
| 18 | ! CHANGES * |
|---|
| 19 | ! 12/2014 eso: MPI version * |
|---|
| 20 | !***************************************************************************** |
|---|
| 21 | ! * |
|---|
| 22 | ! Variables: * |
|---|
| 23 | ! * |
|---|
| 24 | ! numparticlecount consecutively counts the number of particles released * |
|---|
| 25 | ! nx_we(2) grid indices for western and eastern boundary of domain- * |
|---|
| 26 | ! filling trajectory calculations * |
|---|
| 27 | ! ny_sn(2) grid indices for southern and northern boundary of domain- * |
|---|
| 28 | ! filling trajectory calculations * |
|---|
| 29 | ! * |
|---|
| 30 | !***************************************************************************** |
|---|
| 31 | ! MPI version: |
|---|
| 32 | ! |
|---|
| 33 | ! -Root process allocates temporary arrays holding properties for |
|---|
| 34 | ! all particles in the simulation |
|---|
| 35 | ! -An index array is used to assign 1st particle to 1st process, 2nd particle |
|---|
| 36 | ! to 2nd process and so on so that they are evenly distibuted geographically |
|---|
| 37 | ! -Inititialization for domain-filling is done as in the serial code |
|---|
| 38 | ! -Root process distributes particles evenly to other processes |
|---|
| 39 | ! |
|---|
| 40 | !***************************************************************************** |
|---|
| 41 | |
|---|
| 42 | use point_mod |
|---|
| 43 | use par_mod |
|---|
| 44 | use com_mod |
|---|
| 45 | use random_mod, only: ran1 |
|---|
| 46 | use mpi_mod |
|---|
| 47 | |
|---|
| 48 | implicit none |
|---|
| 49 | |
|---|
| 50 | ! ncolumn_mpi,numparttot_mpi ncolumn,numparttot per process |
|---|
| 51 | integer :: j,ix,jy,kz,ncolumn,numparttot,ncolumn_mpi,numparttot_mpi, arr_size |
|---|
| 52 | real :: gridarea(0:nymax-1),pp(nzmax),ylat,ylatp,ylatm,hzone |
|---|
| 53 | real :: cosfactm,cosfactp,deltacol,dz1,dz2,dz,pnew,fractus |
|---|
| 54 | real,parameter :: pih=pi/180. |
|---|
| 55 | real :: colmass(0:nxmax-1,0:nymax-1),colmasstotal,zposition |
|---|
| 56 | |
|---|
| 57 | integer :: ixm,ixp,jym,jyp,indzm,indzp,in,indzh,i,jj |
|---|
| 58 | real :: pvpart,ddx,ddy,rddx,rddy,p1,p2,p3,p4,y1(2) |
|---|
| 59 | |
|---|
| 60 | integer :: idummy = -11 |
|---|
| 61 | integer,allocatable,dimension(:) :: idx ! index array |
|---|
| 62 | integer :: stride |
|---|
| 63 | integer, parameter :: nullsize=0 |
|---|
| 64 | logical :: first_call=.true. |
|---|
| 65 | |
|---|
| 66 | ! Use different seed for each process ! TODO: not needed anymore |
|---|
| 67 | if (first_call) then |
|---|
| 68 | idummy=idummy+mp_seed |
|---|
| 69 | first_call=.false. |
|---|
| 70 | end if |
|---|
| 71 | |
|---|
| 72 | ! Determine the release region (only full grid cells), over which particles |
|---|
| 73 | ! shall be initialized |
|---|
| 74 | ! Use 2 fields for west/east and south/north boundary |
|---|
| 75 | !************************************************************************** |
|---|
| 76 | |
|---|
| 77 | nx_we(1)=max(int(xpoint1(1)),0) |
|---|
| 78 | nx_we(2)=min((int(xpoint2(1))+1),nxmin1) |
|---|
| 79 | ny_sn(1)=max(int(ypoint1(1)),0) |
|---|
| 80 | ny_sn(2)=min((int(ypoint2(1))+1),nymin1) |
|---|
| 81 | |
|---|
| 82 | ! For global simulations (both global wind data and global domain-filling), |
|---|
| 83 | ! set a switch, such that no boundary conditions are used |
|---|
| 84 | !************************************************************************** |
|---|
| 85 | if (xglobal.and.sglobal.and.nglobal) then |
|---|
| 86 | if ((nx_we(1).eq.0).and.(nx_we(2).eq.nxmin1).and. & |
|---|
| 87 | (ny_sn(1).eq.0).and.(ny_sn(2).eq.nymin1)) then |
|---|
| 88 | gdomainfill=.true. |
|---|
| 89 | else |
|---|
| 90 | gdomainfill=.false. |
|---|
| 91 | endif |
|---|
| 92 | endif |
|---|
| 93 | |
|---|
| 94 | ! Exit here if resuming a run from particle dump |
|---|
| 95 | !*********************************************** |
|---|
| 96 | if (gdomainfill.and.ipin.ne.0) return |
|---|
| 97 | |
|---|
| 98 | ! Do not release particles twice (i.e., not at both in the leftmost and rightmost |
|---|
| 99 | ! grid cell) for a global domain |
|---|
| 100 | !***************************************************************************** |
|---|
| 101 | if (xglobal) nx_we(2)=min(nx_we(2),nx-2) |
|---|
| 102 | |
|---|
| 103 | |
|---|
| 104 | ! This section only done by the root process |
|---|
| 105 | !******************************************* |
|---|
| 106 | if (lroot) then |
|---|
| 107 | ! Arrays for particles to be released. Add a small number to npart(1) in case of |
|---|
| 108 | ! round-off errors |
|---|
| 109 | arr_size = npart(1) + mp_np |
|---|
| 110 | allocate(itra1_tmp(arr_size),npoint_tmp(arr_size),nclass_tmp(arr_size),& |
|---|
| 111 | & idt_tmp(arr_size),itramem_tmp(arr_size),itrasplit_tmp(arr_size),& |
|---|
| 112 | & xtra1_tmp(arr_size),ytra1_tmp(arr_size),ztra1_tmp(arr_size),& |
|---|
| 113 | & xmass1_tmp(arr_size, maxspec)) |
|---|
| 114 | |
|---|
| 115 | ! Index array for particles. This is to avoid having particles |
|---|
| 116 | ! near edges of domain all on one process. |
|---|
| 117 | !**************************************************************************** |
|---|
| 118 | allocate(idx(npart(1))) |
|---|
| 119 | stride = npart(1)/mp_partgroup_np |
|---|
| 120 | |
|---|
| 121 | jj=0 |
|---|
| 122 | do j=1, stride |
|---|
| 123 | do i=0, mp_partgroup_np-1 |
|---|
| 124 | jj = jj+1 |
|---|
| 125 | if (jj.gt.npart(1)) exit |
|---|
| 126 | idx(jj) = i*stride+j |
|---|
| 127 | end do |
|---|
| 128 | end do |
|---|
| 129 | |
|---|
| 130 | ! Add extra indices if npart(1) not evenly divisible by number of processes |
|---|
| 131 | do i=1, mod(npart(1),mp_partgroup_np) |
|---|
| 132 | jj = jj+1 |
|---|
| 133 | if (jj.gt.npart(1)) exit |
|---|
| 134 | idx(jj) = jj |
|---|
| 135 | end do |
|---|
| 136 | |
|---|
| 137 | ! Initialize all particles as non-existent |
|---|
| 138 | itra1_tmp(:)=-999999999 |
|---|
| 139 | |
|---|
| 140 | ! Calculate area of grid cell with formula M=2*pi*R*h*dx/360, |
|---|
| 141 | ! see Netz, Formeln der Mathematik, 5. Auflage (1983), p.90 |
|---|
| 142 | !************************************************************ |
|---|
| 143 | |
|---|
| 144 | do jy=ny_sn(1),ny_sn(2) ! loop about latitudes |
|---|
| 145 | ylat=ylat0+real(jy)*dy |
|---|
| 146 | ylatp=ylat+0.5*dy |
|---|
| 147 | ylatm=ylat-0.5*dy |
|---|
| 148 | if ((ylatm.lt.0).and.(ylatp.gt.0.)) then |
|---|
| 149 | hzone=1./dyconst |
|---|
| 150 | else |
|---|
| 151 | cosfactp=cos(ylatp*pih)*r_earth |
|---|
| 152 | cosfactm=cos(ylatm*pih)*r_earth |
|---|
| 153 | if (cosfactp.lt.cosfactm) then |
|---|
| 154 | hzone=sqrt(r_earth**2-cosfactp**2)- & |
|---|
| 155 | sqrt(r_earth**2-cosfactm**2) |
|---|
| 156 | else |
|---|
| 157 | hzone=sqrt(r_earth**2-cosfactm**2)- & |
|---|
| 158 | sqrt(r_earth**2-cosfactp**2) |
|---|
| 159 | endif |
|---|
| 160 | endif |
|---|
| 161 | gridarea(jy)=2.*pi*r_earth*hzone*dx/360. |
|---|
| 162 | end do |
|---|
| 163 | |
|---|
| 164 | ! Do the same for the south pole |
|---|
| 165 | |
|---|
| 166 | if (sglobal) then |
|---|
| 167 | ylat=ylat0 |
|---|
| 168 | ylatp=ylat+0.5*dy |
|---|
| 169 | ylatm=ylat |
|---|
| 170 | cosfactm=0. |
|---|
| 171 | cosfactp=cos(ylatp*pih)*r_earth |
|---|
| 172 | hzone=sqrt(r_earth**2-cosfactm**2)- & |
|---|
| 173 | sqrt(r_earth**2-cosfactp**2) |
|---|
| 174 | gridarea(0)=2.*pi*r_earth*hzone*dx/360. |
|---|
| 175 | endif |
|---|
| 176 | |
|---|
| 177 | ! Do the same for the north pole |
|---|
| 178 | |
|---|
| 179 | if (nglobal) then |
|---|
| 180 | ylat=ylat0+real(nymin1)*dy |
|---|
| 181 | ylatp=ylat |
|---|
| 182 | ylatm=ylat-0.5*dy |
|---|
| 183 | cosfactp=0. |
|---|
| 184 | cosfactm=cos(ylatm*pih)*r_earth |
|---|
| 185 | hzone=sqrt(r_earth**2-cosfactp**2)- & |
|---|
| 186 | sqrt(r_earth**2-cosfactm**2) |
|---|
| 187 | gridarea(nymin1)=2.*pi*r_earth*hzone*dx/360. |
|---|
| 188 | endif |
|---|
| 189 | |
|---|
| 190 | |
|---|
| 191 | ! Calculate total mass of each grid column and of the whole atmosphere |
|---|
| 192 | !********************************************************************* |
|---|
| 193 | |
|---|
| 194 | colmasstotal=0. |
|---|
| 195 | do jy=ny_sn(1),ny_sn(2) ! loop about latitudes |
|---|
| 196 | do ix=nx_we(1),nx_we(2) ! loop about longitudes |
|---|
| 197 | pp(1)=rho(ix,jy,1,1)*r_air*tt(ix,jy,1,1) |
|---|
| 198 | pp(nz)=rho(ix,jy,nz,1)*r_air*tt(ix,jy,nz,1) |
|---|
| 199 | colmass(ix,jy)=(pp(1)-pp(nz))/ga*gridarea(jy) |
|---|
| 200 | colmasstotal=colmasstotal+colmass(ix,jy) |
|---|
| 201 | end do |
|---|
| 202 | end do |
|---|
| 203 | |
|---|
| 204 | write(*,*) 'Atm. mass: ',colmasstotal |
|---|
| 205 | |
|---|
| 206 | |
|---|
| 207 | if (ipin.eq.0) numpart=0 |
|---|
| 208 | |
|---|
| 209 | ! Determine the particle positions |
|---|
| 210 | !********************************* |
|---|
| 211 | |
|---|
| 212 | numparttot=0 |
|---|
| 213 | numcolumn=0 |
|---|
| 214 | do jy=ny_sn(1),ny_sn(2) ! loop about latitudes |
|---|
| 215 | ylat=ylat0+real(jy)*dy |
|---|
| 216 | do ix=nx_we(1),nx_we(2) ! loop about longitudes |
|---|
| 217 | ncolumn=nint(0.999*real(npart(1))*colmass(ix,jy)/ & |
|---|
| 218 | colmasstotal) |
|---|
| 219 | if (ncolumn.eq.0) goto 30 |
|---|
| 220 | if (ncolumn.gt.numcolumn) numcolumn=ncolumn |
|---|
| 221 | |
|---|
| 222 | ! Calculate pressure at the altitudes of model surfaces, using the air density |
|---|
| 223 | ! information, which is stored as a 3-d field |
|---|
| 224 | !***************************************************************************** |
|---|
| 225 | |
|---|
| 226 | do kz=1,nz |
|---|
| 227 | pp(kz)=rho(ix,jy,kz,1)*r_air*tt(ix,jy,kz,1) |
|---|
| 228 | end do |
|---|
| 229 | |
|---|
| 230 | |
|---|
| 231 | deltacol=(pp(1)-pp(nz))/real(ncolumn) |
|---|
| 232 | pnew=pp(1)+deltacol/2. |
|---|
| 233 | jj=0 |
|---|
| 234 | do j=1,ncolumn |
|---|
| 235 | jj=jj+1 |
|---|
| 236 | |
|---|
| 237 | |
|---|
| 238 | ! For columns with many particles (i.e. around the equator), distribute |
|---|
| 239 | ! the particles equally, for columns with few particles (i.e. around the |
|---|
| 240 | ! poles), distribute the particles randomly |
|---|
| 241 | !*********************************************************************** |
|---|
| 242 | |
|---|
| 243 | |
|---|
| 244 | if (ncolumn.gt.20) then |
|---|
| 245 | pnew=pnew-deltacol |
|---|
| 246 | else |
|---|
| 247 | pnew=pp(1)-ran1(idummy)*(pp(1)-pp(nz)) |
|---|
| 248 | endif |
|---|
| 249 | |
|---|
| 250 | do kz=1,nz-1 |
|---|
| 251 | if ((pp(kz).ge.pnew).and.(pp(kz+1).lt.pnew)) then |
|---|
| 252 | dz1=pp(kz)-pnew |
|---|
| 253 | dz2=pnew-pp(kz+1) |
|---|
| 254 | dz=1./(dz1+dz2) |
|---|
| 255 | |
|---|
| 256 | ! Assign particle position |
|---|
| 257 | !************************* |
|---|
| 258 | ! Do the following steps only if particles are not read in from previous model run |
|---|
| 259 | !***************************************************************************** |
|---|
| 260 | if (ipin.eq.0) then |
|---|
| 261 | xtra1_tmp(idx(numpart+jj))=real(ix)-0.5+ran1(idummy) |
|---|
| 262 | if (ix.eq.0) xtra1_tmp(idx(numpart+jj))=ran1(idummy) |
|---|
| 263 | if (ix.eq.nxmin1) xtra1_tmp(idx(numpart+jj))= & |
|---|
| 264 | real(nxmin1)-ran1(idummy) |
|---|
| 265 | ytra1_tmp(idx(numpart+jj))=real(jy)-0.5+ran1(idummy) |
|---|
| 266 | ztra1_tmp(idx(numpart+jj))=(height(kz)*dz2+height(kz+1)*dz1)*dz |
|---|
| 267 | if (ztra1_tmp(idx(numpart+jj)).gt.height(nz)-0.5) & |
|---|
| 268 | ztra1_tmp(idx(numpart+jj))=height(nz)-0.5 |
|---|
| 269 | |
|---|
| 270 | |
|---|
| 271 | ! Interpolate PV to the particle position |
|---|
| 272 | !**************************************** |
|---|
| 273 | ixm=int(xtra1_tmp(idx(numpart+jj))) |
|---|
| 274 | jym=int(ytra1_tmp(idx(numpart+jj))) |
|---|
| 275 | ixp=ixm+1 |
|---|
| 276 | jyp=jym+1 |
|---|
| 277 | ddx=xtra1_tmp(idx(numpart+jj))-real(ixm) |
|---|
| 278 | ddy=ytra1_tmp(idx(numpart+jj))-real(jym) |
|---|
| 279 | rddx=1.-ddx |
|---|
| 280 | rddy=1.-ddy |
|---|
| 281 | p1=rddx*rddy |
|---|
| 282 | p2=ddx*rddy |
|---|
| 283 | p3=rddx*ddy |
|---|
| 284 | p4=ddx*ddy |
|---|
| 285 | do i=2,nz |
|---|
| 286 | if (height(i).gt.ztra1_tmp(idx(numpart+jj))) then |
|---|
| 287 | indzm=i-1 |
|---|
| 288 | indzp=i |
|---|
| 289 | goto 6 |
|---|
| 290 | endif |
|---|
| 291 | end do |
|---|
| 292 | 6 continue |
|---|
| 293 | dz1=ztra1_tmp(idx(numpart+jj))-height(indzm) |
|---|
| 294 | dz2=height(indzp)-ztra1_tmp(idx(numpart+jj)) |
|---|
| 295 | dz=1./(dz1+dz2) |
|---|
| 296 | do in=1,2 |
|---|
| 297 | indzh=indzm+in-1 |
|---|
| 298 | y1(in)=p1*pv(ixm,jym,indzh,1) & |
|---|
| 299 | +p2*pv(ixp,jym,indzh,1) & |
|---|
| 300 | +p3*pv(ixm,jyp,indzh,1) & |
|---|
| 301 | +p4*pv(ixp,jyp,indzh,1) |
|---|
| 302 | end do |
|---|
| 303 | pvpart=(dz2*y1(1)+dz1*y1(2))*dz |
|---|
| 304 | if (ylat.lt.0.) pvpart=-1.*pvpart |
|---|
| 305 | |
|---|
| 306 | |
|---|
| 307 | ! For domain-filling option 2 (stratospheric O3), do the rest only in the stratosphere |
|---|
| 308 | !***************************************************************************** |
|---|
| 309 | |
|---|
| 310 | if (((ztra1_tmp(idx(numpart+jj)).gt.3000.).and. & |
|---|
| 311 | (pvpart.gt.pvcrit)).or.(mdomainfill.eq.1)) then |
|---|
| 312 | |
|---|
| 313 | ! Assign certain properties to the particle |
|---|
| 314 | !****************************************** |
|---|
| 315 | nclass_tmp(idx(numpart+jj))=min(int(ran1(idummy)* & |
|---|
| 316 | real(nclassunc))+1,nclassunc) |
|---|
| 317 | numparticlecount=numparticlecount+1 |
|---|
| 318 | npoint_tmp(idx(numpart+jj))=numparticlecount |
|---|
| 319 | idt_tmp(idx(numpart+jj))=mintime |
|---|
| 320 | itra1_tmp(idx(numpart+jj))=0 |
|---|
| 321 | itramem_tmp(idx(numpart+jj))=0 |
|---|
| 322 | itrasplit_tmp(idx(numpart+jj))=itra1_tmp(idx(numpart+jj))+ldirect* & |
|---|
| 323 | itsplit |
|---|
| 324 | xmass1_tmp(idx(numpart+jj),1)=colmass(ix,jy)/real(ncolumn) |
|---|
| 325 | if (mdomainfill.eq.2) xmass1_tmp(idx(numpart+jj),1)= & |
|---|
| 326 | xmass1_tmp(idx(numpart+jj),1)*pvpart*48./29.*ozonescale/10.**9 |
|---|
| 327 | else |
|---|
| 328 | jj=jj-1 |
|---|
| 329 | endif |
|---|
| 330 | endif |
|---|
| 331 | endif |
|---|
| 332 | end do |
|---|
| 333 | end do |
|---|
| 334 | numparttot=numparttot+ncolumn |
|---|
| 335 | if (ipin.eq.0) numpart=numpart+jj |
|---|
| 336 | 30 continue |
|---|
| 337 | end do |
|---|
| 338 | end do |
|---|
| 339 | |
|---|
| 340 | |
|---|
| 341 | ! Check whether numpart is really smaller than maxpart |
|---|
| 342 | !***************************************************** |
|---|
| 343 | |
|---|
| 344 | ! ESO :TODO: this warning need to be moved further up, else out-of-bounds error earlier |
|---|
| 345 | if (numpart.gt.maxpart) then |
|---|
| 346 | write(*,*) 'numpart too large: change source in init_atm_mass.f' |
|---|
| 347 | write(*,*) 'numpart: ',numpart,' maxpart: ',maxpart |
|---|
| 348 | endif |
|---|
| 349 | |
|---|
| 350 | |
|---|
| 351 | xmassperparticle=colmasstotal/real(numparttot) |
|---|
| 352 | |
|---|
| 353 | |
|---|
| 354 | ! Make sure that all particles are within domain |
|---|
| 355 | !*********************************************** |
|---|
| 356 | |
|---|
| 357 | do j=1,numpart |
|---|
| 358 | if ((xtra1_tmp(j).lt.0.).or.(xtra1_tmp(j).ge.real(nxmin1)).or. & |
|---|
| 359 | (ytra1_tmp(j).lt.0.).or.(ytra1_tmp(j).ge.real(nymin1))) then |
|---|
| 360 | itra1_tmp(j)=-999999999 |
|---|
| 361 | endif |
|---|
| 362 | end do |
|---|
| 363 | |
|---|
| 364 | |
|---|
| 365 | |
|---|
| 366 | |
|---|
| 367 | ! For boundary conditions, we need fewer particle release heights per column, |
|---|
| 368 | ! because otherwise it takes too long until enough mass has accumulated to |
|---|
| 369 | ! release a particle at the boundary (would take dx/u seconds), leading to |
|---|
| 370 | ! relatively large position errors of the order of one grid distance. |
|---|
| 371 | ! It's better to release fewer particles per column, but to do so more often. |
|---|
| 372 | ! Thus, use on the order of nz starting heights per column. |
|---|
| 373 | ! We thus repeat the above to determine fewer starting heights, that are |
|---|
| 374 | ! used furtheron in subroutine boundcond_domainfill.f. |
|---|
| 375 | !**************************************************************************** |
|---|
| 376 | |
|---|
| 377 | fractus=real(numcolumn)/real(nz) |
|---|
| 378 | write(*,*) 'Total number of particles at model start: ',numpart |
|---|
| 379 | write(*,*) 'Maximum number of particles per column: ',numcolumn |
|---|
| 380 | write(*,*) 'If ',fractus,' <1, better use more particles' |
|---|
| 381 | fractus=sqrt(max(fractus,1.))/2. |
|---|
| 382 | |
|---|
| 383 | do jy=ny_sn(1),ny_sn(2) ! loop about latitudes |
|---|
| 384 | do ix=nx_we(1),nx_we(2) ! loop about longitudes |
|---|
| 385 | ncolumn=nint(0.999/fractus*real(npart(1))*colmass(ix,jy) & |
|---|
| 386 | /colmasstotal) |
|---|
| 387 | if (ncolumn.gt.maxcolumn) stop 'maxcolumn too small' |
|---|
| 388 | if (ncolumn.eq.0) goto 80 |
|---|
| 389 | |
|---|
| 390 | |
|---|
| 391 | ! Memorize how many particles per column shall be used for all boundaries |
|---|
| 392 | ! This is further used in subroutine boundcond_domainfill.f |
|---|
| 393 | ! Use 2 fields for west/east and south/north boundary |
|---|
| 394 | !************************************************************************ |
|---|
| 395 | |
|---|
| 396 | if (ix.eq.nx_we(1)) numcolumn_we(1,jy)=ncolumn |
|---|
| 397 | if (ix.eq.nx_we(2)) numcolumn_we(2,jy)=ncolumn |
|---|
| 398 | if (jy.eq.ny_sn(1)) numcolumn_sn(1,ix)=ncolumn |
|---|
| 399 | if (jy.eq.ny_sn(2)) numcolumn_sn(2,ix)=ncolumn |
|---|
| 400 | |
|---|
| 401 | ! Calculate pressure at the altitudes of model surfaces, using the air density |
|---|
| 402 | ! information, which is stored as a 3-d field |
|---|
| 403 | !***************************************************************************** |
|---|
| 404 | |
|---|
| 405 | do kz=1,nz |
|---|
| 406 | pp(kz)=rho(ix,jy,kz,1)*r_air*tt(ix,jy,kz,1) |
|---|
| 407 | end do |
|---|
| 408 | |
|---|
| 409 | ! Determine the reference starting altitudes |
|---|
| 410 | !******************************************* |
|---|
| 411 | |
|---|
| 412 | deltacol=(pp(1)-pp(nz))/real(ncolumn) |
|---|
| 413 | pnew=pp(1)+deltacol/2. |
|---|
| 414 | do j=1,ncolumn |
|---|
| 415 | pnew=pnew-deltacol |
|---|
| 416 | do kz=1,nz-1 |
|---|
| 417 | if ((pp(kz).ge.pnew).and.(pp(kz+1).lt.pnew)) then |
|---|
| 418 | dz1=pp(kz)-pnew |
|---|
| 419 | dz2=pnew-pp(kz+1) |
|---|
| 420 | dz=1./(dz1+dz2) |
|---|
| 421 | zposition=(height(kz)*dz2+height(kz+1)*dz1)*dz |
|---|
| 422 | if (zposition.gt.height(nz)-0.5) zposition=height(nz)-0.5 |
|---|
| 423 | |
|---|
| 424 | ! Memorize vertical positions where particles are introduced |
|---|
| 425 | ! This is further used in subroutine boundcond_domainfill.f |
|---|
| 426 | !*********************************************************** |
|---|
| 427 | |
|---|
| 428 | if (ix.eq.nx_we(1)) zcolumn_we(1,jy,j)=zposition |
|---|
| 429 | if (ix.eq.nx_we(2)) zcolumn_we(2,jy,j)=zposition |
|---|
| 430 | if (jy.eq.ny_sn(1)) zcolumn_sn(1,ix,j)=zposition |
|---|
| 431 | if (jy.eq.ny_sn(2)) zcolumn_sn(2,ix,j)=zposition |
|---|
| 432 | |
|---|
| 433 | ! Initialize mass that has accumulated at boundary to zero |
|---|
| 434 | !********************************************************* |
|---|
| 435 | |
|---|
| 436 | acc_mass_we(1,jy,j)=0. |
|---|
| 437 | acc_mass_we(2,jy,j)=0. |
|---|
| 438 | acc_mass_sn(1,jy,j)=0. |
|---|
| 439 | acc_mass_sn(2,jy,j)=0. |
|---|
| 440 | endif |
|---|
| 441 | end do |
|---|
| 442 | end do |
|---|
| 443 | 80 continue |
|---|
| 444 | end do |
|---|
| 445 | end do |
|---|
| 446 | |
|---|
| 447 | ! If particles shall be read in to continue an existing run, |
|---|
| 448 | ! then the accumulated masses at the domain boundaries must be read in, too. |
|---|
| 449 | ! This overrides any previous calculations. |
|---|
| 450 | !*************************************************************************** |
|---|
| 451 | |
|---|
| 452 | ! eso TODO: only needed for root process |
|---|
| 453 | if ((ipin.eq.1).and.(.not.gdomainfill)) then |
|---|
| 454 | open(unitboundcond,file=path(2)(1:length(2))//'boundcond.bin', & |
|---|
| 455 | form='unformatted') |
|---|
| 456 | read(unitboundcond) numcolumn_we,numcolumn_sn, & |
|---|
| 457 | zcolumn_we,zcolumn_sn,acc_mass_we,acc_mass_sn |
|---|
| 458 | close(unitboundcond) |
|---|
| 459 | endif |
|---|
| 460 | |
|---|
| 461 | if (ipin.eq.0) then |
|---|
| 462 | numpart = numpart/mp_partgroup_np |
|---|
| 463 | if (mod(numpart,mp_partgroup_np).ne.0) numpart=numpart+1 |
|---|
| 464 | end if |
|---|
| 465 | |
|---|
| 466 | else ! Allocate dummy arrays for receiving processes |
|---|
| 467 | if (ipin.eq.0) then |
|---|
| 468 | allocate(itra1_tmp(nullsize),npoint_tmp(nullsize),nclass_tmp(nullsize),& |
|---|
| 469 | & idt_tmp(nullsize),itramem_tmp(nullsize),itrasplit_tmp(nullsize),& |
|---|
| 470 | & xtra1_tmp(nullsize),ytra1_tmp(nullsize),ztra1_tmp(nullsize),& |
|---|
| 471 | & xmass1_tmp(nullsize, nullsize)) |
|---|
| 472 | end if |
|---|
| 473 | |
|---|
| 474 | end if ! end if(lroot) |
|---|
| 475 | |
|---|
| 476 | |
|---|
| 477 | |
|---|
| 478 | ! Distribute particles to other processes (numpart is 'per-process', not total) |
|---|
| 479 | ! Only if not restarting from previous run |
|---|
| 480 | if (ipin.eq.0) then |
|---|
| 481 | call MPI_Bcast(numpart, 1, MPI_INTEGER, id_root, mp_comm_used, mp_ierr) |
|---|
| 482 | call mpif_send_part_properties(npart(1)/mp_partgroup_np) |
|---|
| 483 | |
|---|
| 484 | ! Deallocate the temporary arrays used for all particles |
|---|
| 485 | deallocate(itra1_tmp,npoint_tmp,nclass_tmp,idt_tmp,itramem_tmp,& |
|---|
| 486 | & itrasplit_tmp,xtra1_tmp,ytra1_tmp,ztra1_tmp,xmass1_tmp) |
|---|
| 487 | end if |
|---|
| 488 | |
|---|
| 489 | |
|---|
| 490 | end subroutine init_domainfill |
|---|
