[16] | 1 | !*********************************************************************** |
---|
| 2 | !* Copyright 2012,2013 * |
---|
| 3 | !* Jerome Brioude, Delia Arnold, Jerome Fast, |
---|
| 4 | !* Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa * |
---|
| 5 | !* Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann |
---|
| 6 | !* M. Cassiani |
---|
| 7 | !* * |
---|
| 8 | !* This file is part of FLEXPART WRF * |
---|
| 9 | !* * |
---|
| 10 | !* FLEXPART is free software: you can redistribute it and/or modify * |
---|
| 11 | !* it under the terms of the GNU General Public License as published by* |
---|
| 12 | !* the Free Software Foundation, either version 3 of the License, or * |
---|
| 13 | !* (at your option) any later version. * |
---|
| 14 | !* * |
---|
| 15 | !* FLEXPART is distributed in the hope that it will be useful, * |
---|
| 16 | !* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
---|
| 17 | !* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
---|
| 18 | !* GNU General Public License for more details. * |
---|
| 19 | !* * |
---|
| 20 | !* You should have received a copy of the GNU General Public License * |
---|
| 21 | !* along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
---|
| 22 | !*********************************************************************** |
---|
| 23 | subroutine interpol_hmix(itime,xt,yt,zt,haux, & |
---|
| 24 | p1,p2,p3,p4,ddx,ddy,rddx,rddy,dtt,dt1,dt2, & |
---|
| 25 | ix,jy,ixp,jyp) |
---|
| 26 | |
---|
| 27 | ! i i i i |
---|
| 28 | !******************************************************************************* |
---|
| 29 | ! * |
---|
| 30 | ! This subroutine interpolates boundary layer top (h) * |
---|
| 31 | ! dispersion. * |
---|
| 32 | ! * |
---|
| 33 | ! Author:M. cassiani 2013 * |
---|
| 34 | ! * |
---|
| 35 | ! * |
---|
| 36 | !******************************************************************************* |
---|
| 37 | use par_mod |
---|
| 38 | use com_mod |
---|
| 39 | ! use interpol_mod |
---|
| 40 | ! use hanna_mod |
---|
| 41 | implicit none |
---|
| 42 | |
---|
| 43 | integer :: itime |
---|
| 44 | real :: xt,yt,zt,h |
---|
| 45 | |
---|
| 46 | ! Auxiliary variables needed for interpolation |
---|
| 47 | |
---|
| 48 | integer :: i,m,n,indexh,n2 |
---|
| 49 | |
---|
| 50 | real,parameter ::eps=1.0e-30 |
---|
| 51 | |
---|
| 52 | |
---|
| 53 | real :: h1(2),haux |
---|
| 54 | real :: p1,p2,p3,p4,ddx,ddy,rddx,rddy,dtt,dt1,dt2 |
---|
| 55 | integer :: ix,jy,ixp,jyp,ngrid,indz,indzp |
---|
| 56 | logical :: indzindicator(nzmax) |
---|
| 57 | |
---|
| 58 | |
---|
| 59 | |
---|
| 60 | !******************************************** |
---|
| 61 | ! Multilinear interpolation in time and space |
---|
| 62 | !******************************************** |
---|
| 63 | |
---|
| 64 | ! Determine the lower left corner and its distance to the current position |
---|
| 65 | !************************************************************************* |
---|
| 66 | |
---|
| 67 | ddx=xt-real(ix) |
---|
| 68 | ddy=yt-real(jy) |
---|
| 69 | rddx=1.-ddx |
---|
| 70 | rddy=1.-ddy |
---|
| 71 | p1=rddx*rddy |
---|
| 72 | p2=ddx*rddy |
---|
| 73 | p3=rddx*ddy |
---|
| 74 | p4=ddx*ddy |
---|
| 75 | |
---|
| 76 | ! Calculate variables for time interpolation |
---|
| 77 | !******************************************* |
---|
| 78 | |
---|
| 79 | dt1=real(itime-memtime(1)) |
---|
| 80 | dt2=real(memtime(2)-itime) |
---|
| 81 | dtt=1./(dt1+dt2) |
---|
| 82 | |
---|
| 83 | |
---|
| 84 | |
---|
| 85 | !***************************************** |
---|
| 86 | |
---|
| 87 | ! a) Bilinear horizontal interpolation |
---|
| 88 | |
---|
| 89 | do m=1,2 |
---|
| 90 | indexh=memind(m) |
---|
| 91 | |
---|
| 92 | h1(m)=p1*hmix(ix ,jy ,1,indexh) & |
---|
| 93 | + p2*hmix(ixp,jy ,1,indexh) & |
---|
| 94 | + p3*hmix(ix ,jyp,1,indexh) & |
---|
| 95 | + p4*hmix(ixp,jyp,1,indexh) |
---|
| 96 | |
---|
| 97 | end do |
---|
| 98 | |
---|
| 99 | |
---|
| 100 | ! b) Temporal interpolation |
---|
| 101 | |
---|
| 102 | haux=(h1(1)*dt2+h1(2)*dt1)*dtt |
---|
| 103 | |
---|
| 104 | |
---|
| 105 | end subroutine interpol_hmix |
---|
| 106 | |
---|