! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt ! SPDX-License-Identifier: GPL-3.0-or-later subroutine wetdepokernel(nunc,deposit,x,y,nage,kp) ! i i i i i !***************************************************************************** ! * ! Attribution of the deposition from an individual particle to the * ! deposition fields using a uniform kernel with bandwidths dxout and dyout.* ! * ! Author: A. Stohl * ! * ! 26 December 1996 * ! * !***************************************************************************** ! * ! Variables: * ! * ! nunc uncertainty class of the respective particle * ! nage age class of the respective particle * ! deposit amount (kg) to be deposited * ! * !***************************************************************************** ! Changes: ! eso 10/2016: Added option to disregard kernel ! !***************************************************************************** use unc_mod use par_mod use com_mod implicit none real :: x,y,deposit(maxspec),ddx,ddy,xl,yl,wx,wy,w integer :: ix,jy,ixp,jyp,nunc,nage,ks,kp xl=(x*dx+xoutshift)/dxout yl=(y*dy+youtshift)/dyout ix=int(xl) jy=int(yl) ddx=xl-real(ix) ! distance to left cell border ddy=yl-real(jy) ! distance to lower cell border if (ddx.gt.0.5) then ixp=ix+1 wx=1.5-ddx else ixp=ix-1 wx=0.5+ddx endif if (ddy.gt.0.5) then jyp=jy+1 wy=1.5-ddy else jyp=jy-1 wy=0.5+ddy endif ! If no kernel is used, direct attribution to grid cell !****************************************************** if (.not.lusekerneloutput) then do ks=1,nspec if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. & (jy.le.numygrid-1)) then wetgridunc(ix,jy,ks,kp,nunc,nage)= & wetgridunc(ix,jy,ks,kp,nunc,nage)+deposit(ks) end if end do else ! use kernel ! Determine mass fractions for four grid points !********************************************** do ks=1,nspec if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. & (jy.le.numygrid-1)) then w=wx*wy wetgridunc(ix,jy,ks,kp,nunc,nage)= & wetgridunc(ix,jy,ks,kp,nunc,nage)+deposit(ks)*w endif if ((ixp.ge.0).and.(jyp.ge.0).and.(ixp.le.numxgrid-1).and. & (jyp.le.numygrid-1)) then w=(1.-wx)*(1.-wy) wetgridunc(ixp,jyp,ks,kp,nunc,nage)= & wetgridunc(ixp,jyp,ks,kp,nunc,nage)+deposit(ks)*w endif if ((ixp.ge.0).and.(jy.ge.0).and.(ixp.le.numxgrid-1).and. & (jy.le.numygrid-1)) then w=(1.-wx)*wy wetgridunc(ixp,jy,ks,kp,nunc,nage)= & wetgridunc(ixp,jy,ks,kp,nunc,nage)+deposit(ks)*w endif if ((ix.ge.0).and.(jyp.ge.0).and.(ix.le.numxgrid-1).and. & (jyp.le.numygrid-1)) then w=wx*(1.-wy) wetgridunc(ix,jyp,ks,kp,nunc,nage)= & wetgridunc(ix,jyp,ks,kp,nunc,nage)+deposit(ks)*w endif end do end if end subroutine wetdepokernel