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!**********************************************************************
! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 *
! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, *
! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann *
! *
! This file is part of FLEXPART. *
! *
! FLEXPART is free software: you can redistribute it and/or modify *
! it under the terms of the GNU General Public License as published by*
! the Free Software Foundation, either version 3 of the License, or *
! (at your option) any later version. *
! *
! FLEXPART is distributed in the hope that it will be useful, *
! but WITHOUT ANY WARRANTY; without even the implied warranty of *
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
! GNU General Public License for more details. *
! *
! You should have received a copy of the GNU General Public License *
! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
!**********************************************************************
program flexpart
!*****************************************************************************
! *
! This is the Lagrangian Particle Dispersion Model FLEXPART. *
! The main program manages the reading of model run specifications, etc. *
! All actual computing is done within subroutine timemanager. *
! *
! Author: A. Stohl *
! *
! 18 May 1996 *
! *
!*****************************************************************************
! *
! Variables: *
! *
! Constants: *
! *
!*****************************************************************************
use point_mod
use par_mod
use com_mod
use conv_mod
implicit none
integer :: i,j,ix,jy,inest
integer :: idummy = -320
! Generate a large number of random numbers
!******************************************
do i=1,maxrand-1,2
call gasdev1(idummy,rannumb(i),rannumb(i+1))
end do
call gasdev1(idummy,rannumb(maxrand),rannumb(maxrand-1))
! Print the GPL License statement
!*******************************************************
print*,'Welcome to FLEXPART Version 9.0'
print*,'FLEXPART is free software released under the GNU Genera'// &
'l Public License.'
! Read the pathnames where input/output files are stored
!*******************************************************
call readpaths
! Read the user specifications for the current model run
!*******************************************************
call readcommand
! Read the age classes to be used
!********************************
call readageclasses
! Read, which wind fields are available within the modelling period
!******************************************************************
call readavailable
! Read the model grid specifications,
! both for the mother domain and eventual nests
!**********************************************
call gridcheck
call gridcheck_nests
! Read the output grid specifications
!************************************
call readoutgrid
if (nested_output.eq.1) call readoutgrid_nest
! Read the receptor points for which extra concentrations are to be calculated
!*****************************************************************************
call readreceptors
! Read the physico-chemical species property table
!*************************************************
!SEC: now only needed SPECIES are read in readreleases.f
!call readspecies
! Read the landuse inventory
!***************************
call readlanduse
! Assign fractional cover of landuse classes to each ECMWF grid point
!********************************************************************
call assignland
! Read the coordinates of the release locations
!**********************************************
call readreleases
! Read and compute surface resistances to dry deposition of gases
!****************************************************************
call readdepo
! Convert the release point coordinates from geografical to grid coordinates
!***************************************************************************
call coordtrafo
! Initialize all particles to non-existent
!*****************************************
do j=1,maxpart
itra1(j)=-999999999
end do
! For continuation of previous run, read in particle positions
!*************************************************************
if (ipin.eq.1) then
call readpartpositions
else
numpart=0
numparticlecount=0
endif
! Calculate volume, surface area, etc., of all output grid cells
! Allocate fluxes and OHfield if necessary
!***************************************************************
call outgrid_init
if (nested_output.eq.1) call outgrid_init_nest
! Read the OH field
!******************
if (OHREA.eqv..TRUE.) &
call readOHfield
! Write basic information on the simulation to a file "header"
! and open files that are to be kept open throughout the simulation
!******************************************************************
call writeheader
if (nested_output.eq.1) call writeheader_nest
open(unitdates,file=path(2)(1:length(2))//'dates')
call openreceptors
if ((iout.eq.4).or.(iout.eq.5)) call openouttraj
! Releases can only start and end at discrete times (multiples of lsynctime)
!***************************************************************************
do i=1,numpoint
ireleasestart(i)=nint(real(ireleasestart(i))/ &
real(lsynctime))*lsynctime
ireleaseend(i)=nint(real(ireleaseend(i))/ &
real(lsynctime))*lsynctime
end do
! Initialize cloud-base mass fluxes for the convection scheme
!************************************************************
do jy=0,nymin1
do ix=0,nxmin1
cbaseflux(ix,jy)=0.
end do
end do
do inest=1,numbnests
do jy=0,nyn(inest)-1
do ix=0,nxn(inest)-1
cbasefluxn(ix,jy,inest)=0.
end do
end do
end do
! Calculate particle trajectories
!********************************
call timemanager
write(*,*) 'CONGRATULATIONS: YOU HAVE SUCCESSFULLY COMPLETED A FLE&
&XPART MODEL RUN!'
end program flexpart
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