| 1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
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| 2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
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| 3 | |
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| 4 | subroutine drydepokernel(nunc,deposit,x,y,nage,kp) |
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| 5 | ! i i i i i |
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| 6 | !***************************************************************************** |
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| 7 | ! * |
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| 8 | ! Attribution of the deposition to the grid using a uniform kernel with * |
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| 9 | ! bandwidths dx and dy. * |
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| 10 | ! * |
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| 11 | ! Author: A. Stohl * |
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| 12 | ! * |
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| 13 | ! 26 December 1996 * |
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| 14 | ! * |
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| 15 | !***************************************************************************** |
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| 16 | ! * |
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| 17 | ! Variables: * |
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| 18 | ! * |
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| 19 | ! nunc uncertainty class of the respective particle * |
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| 20 | ! nage age class of the respective particle * |
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| 21 | ! deposit amount (kg) to be deposited * |
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| 22 | ! * |
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| 23 | !***************************************************************************** |
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| 24 | ! Changes: |
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| 25 | ! eso 10/2016: Added option to disregard kernel |
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| 26 | ! |
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| 27 | !***************************************************************************** |
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| 28 | |
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| 29 | |
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| 30 | use unc_mod |
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| 31 | use par_mod |
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| 32 | use com_mod |
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| 33 | |
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| 34 | implicit none |
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| 35 | |
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| 36 | real(dep_prec), dimension(maxspec) :: deposit |
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| 37 | real :: x,y,ddx,ddy,xl,yl,wx,wy,w |
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| 38 | integer :: ix,jy,ixp,jyp,ks,nunc,nage,kp |
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| 39 | |
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| 40 | |
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| 41 | xl=(x*dx+xoutshift)/dxout |
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| 42 | yl=(y*dy+youtshift)/dyout |
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| 43 | ix=int(xl) |
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| 44 | jy=int(yl) |
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| 45 | ddx=xl-real(ix) ! distance to left cell border |
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| 46 | ddy=yl-real(jy) ! distance to lower cell border |
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| 47 | |
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| 48 | if (ddx.gt.0.5) then |
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| 49 | ixp=ix+1 |
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| 50 | wx=1.5-ddx |
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| 51 | else |
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| 52 | ixp=ix-1 |
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| 53 | wx=0.5+ddx |
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| 54 | endif |
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| 55 | |
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| 56 | if (ddy.gt.0.5) then |
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| 57 | jyp=jy+1 |
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| 58 | wy=1.5-ddy |
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| 59 | else |
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| 60 | jyp=jy-1 |
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| 61 | wy=0.5+ddy |
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| 62 | endif |
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| 63 | |
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| 64 | ! If no kernel is used, direct attribution to grid cell |
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| 65 | !****************************************************** |
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| 66 | |
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| 67 | if (.not.lusekerneloutput) then |
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| 68 | do ks=1,nspec |
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| 69 | if ((abs(deposit(ks)).gt.0).and.DRYDEPSPEC(ks)) then |
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| 70 | if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. & |
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| 71 | (jy.le.numygrid-1)) then |
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| 72 | drygridunc(ix,jy,ks,kp,nunc,nage)= & |
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| 73 | drygridunc(ix,jy,ks,kp,nunc,nage)+deposit(ks) |
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| 74 | end if |
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| 75 | end if |
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| 76 | end do |
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| 77 | else ! use kernel |
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| 78 | |
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| 79 | |
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| 80 | ! Determine mass fractions for four grid points |
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| 81 | !********************************************** |
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| 82 | do ks=1,nspec |
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| 83 | |
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| 84 | if ((abs(deposit(ks)).gt.0).and.DRYDEPSPEC(ks)) then |
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| 85 | |
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| 86 | if ((ix.ge.0).and.(jy.ge.0).and.(ix.le.numxgrid-1).and. & |
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| 87 | (jy.le.numygrid-1)) then |
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| 88 | w=wx*wy |
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| 89 | drygridunc(ix,jy,ks,kp,nunc,nage)= & |
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| 90 | drygridunc(ix,jy,ks,kp,nunc,nage)+deposit(ks)*w |
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| 91 | endif |
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| 92 | |
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| 93 | if ((ixp.ge.0).and.(jyp.ge.0).and.(ixp.le.numxgrid-1).and. & |
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| 94 | (jyp.le.numygrid-1)) then |
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| 95 | w=(1.-wx)*(1.-wy) |
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| 96 | drygridunc(ixp,jyp,ks,kp,nunc,nage)= & |
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| 97 | drygridunc(ixp,jyp,ks,kp,nunc,nage)+deposit(ks)*w |
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| 98 | endif |
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| 99 | |
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| 100 | if ((ixp.ge.0).and.(jy.ge.0).and.(ixp.le.numxgrid-1).and. & |
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| 101 | (jy.le.numygrid-1)) then |
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| 102 | w=(1.-wx)*wy |
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| 103 | drygridunc(ixp,jy,ks,kp,nunc,nage)= & |
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| 104 | drygridunc(ixp,jy,ks,kp,nunc,nage)+deposit(ks)*w |
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| 105 | endif |
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| 106 | |
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| 107 | if ((ix.ge.0).and.(jyp.ge.0).and.(ix.le.numxgrid-1).and. & |
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| 108 | (jyp.le.numygrid-1)) then |
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| 109 | w=wx*(1.-wy) |
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| 110 | drygridunc(ix,jyp,ks,kp,nunc,nage)= & |
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| 111 | drygridunc(ix,jyp,ks,kp,nunc,nage)+deposit(ks)*w |
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| 112 | endif |
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| 113 | |
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| 114 | endif ! deposit>0 |
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| 115 | end do |
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| 116 | end if |
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| 117 | |
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| 118 | end subroutine drydepokernel |
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