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Commit 3d6060ec authored by Sabine's avatar Sabine
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file advance_rec deleted from the git

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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/>. *
!**********************************************************************
subroutine advance_rec(itime,xt,yt,zt,prob)
! i i i i o
!*****************************************************************************
! *
! Calculation of turbulent particle trajectories utilizing a *
! zero-acceleration scheme, which is corrected by a numerically more *
! accurate Petterssen scheme whenever possible. *
! *
! Particle positions are read in, incremented, and returned to the calling *
! program. *
! *
! In different regions of the atmosphere (PBL vs. free troposphere), *
! different parameters are needed for advection, parameterizing turbulent *
! velocities, etc. For efficiency, different interpolation routines have *
! been written for these different cases, with the disadvantage that there *
! exist several routines doing almost the same. They all share the *
! included file 'interpol_mod'. The following *
! interpolation routines are used: *
! *
! interpol_all(_nests) interpolates everything (called inside the PBL) *
! interpol_misslev(_nests) if a particle moves vertically in the PBL, *
! additional parameters are interpolated if it *
! crosses a model level *
! interpol_wind(_nests) interpolates the wind and determines the *
! standard deviation of the wind (called outside *
! PBL) also interpolates potential vorticity *
! interpol_wind_short(_nests) only interpolates the wind (needed for the *
! Petterssen scheme) *
! interpol_vdep(_nests) interpolates deposition velocities *
! *
! *
! Author: A. Stohl *
! *
! 16 December 1997 *
! *
! Changes: *
! *
! 8 April 2000: Deep convection parameterization *
! *
! May 2002: Petterssen scheme introduced *
! *
!*****************************************************************************
! *
! Variables: *
! itime [s] time at which this subroutine is entered *
! itimec [s] actual time, which is incremented in this subroutine *
! href [m] height for which dry deposition velocity is calculated *
! ldirect 1 forward, -1 backward *
! ldt [s] Time step for the next integration *
! lsynctime [s] Synchronisation interval of FLEXPART *
! ngrid index which grid is to be used *
! prob probability of absorption due to dry deposition *
! vdepo Deposition velocities for all species *
! xt,yt,zt Particle position *
! *
!*****************************************************************************
use point_mod
use par_mod
use com_mod
use interpol_mod
implicit none
real(kind=dp) :: xt,yt
real :: zt,xtn,ytn
integer :: itime,i,j,k,memindnext
integer :: nix,njy,ks
real :: prob(maxspec),vdepo(maxspec)
real,parameter :: eps=nxmax/3.e5
if (DRYDEP) then ! reset probability for deposition
do ks=1,nspec
depoindicator(ks)=.true.
prob(ks)=0.
end do
endif
! Determine whether lat/long grid or polarstereographic projection
! is to be used
! Furthermore, determine which nesting level to be used
!*****************************************************************
if (nglobal.and.(yt.gt.switchnorthg)) then
ngrid=-1
else if (sglobal.and.(yt.lt.switchsouthg)) then
ngrid=-2
else
ngrid=0
do j=numbnests,1,-1
if ((xt.gt.xln(j)+eps).and.(xt.lt.xrn(j)-eps).and. &
(yt.gt.yln(j)+eps).and.(yt.lt.yrn(j)-eps)) then
ngrid=j
goto 23
endif
end do
23 continue
endif
!***************************
! Interpolate necessary data
!***************************
if (abs(itime-memtime(1)).lt.abs(itime-memtime(2))) then
memindnext=1
else
memindnext=2
endif
! Determine nested grid coordinates
!**********************************
if (ngrid.gt.0) then
xtn=(xt-xln(ngrid))*xresoln(ngrid)
ytn=(yt-yln(ngrid))*yresoln(ngrid)
ix=int(xtn)
jy=int(ytn)
nix=nint(xtn)
njy=nint(ytn)
else
ix=int(xt)
jy=int(yt)
nix=nint(xt)
njy=nint(yt)
endif
ixp=ix+1
jyp=jy+1
! Determine probability of deposition
!************************************
if ((DRYDEP).and.(zt.lt.2.*href)) then
do ks=1,nspec
if (DRYDEPSPEC(ks)) then
if (depoindicator(ks)) then
if (ngrid.le.0) then
call interpol_vdep(ks,vdepo(ks))
else
call interpol_vdep_nests(ks,vdepo(ks))
endif
endif
! correction by Petra Seibert, 10 April 2001
! this formulation means that prob(n) = 1 - f(0)*...*f(n)
! where f(n) is the exponential term
prob(ks)=vdepo(ks)
! prob(ks)=vdepo(ks)/2./href
! instead of prob - return vdepo -> result kg/m2/s
endif
end do
endif
end subroutine advance_rec
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