| 1 | !*********************************************************************** |
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| 2 | !* Copyright 2012,2013 * |
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| 3 | !* Jerome Brioude, Delia Arnold, Andreas Stohl, Wayne Angevine, * |
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| 4 | !* John Burkhart, Massimo Cassiani, Adam Dingwell, Richard C Easter, Sabine Eckhardt,* |
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| 5 | !* Stephanie Evan, Jerome D Fast, Don Morton, Ignacio Pisso, * |
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| 6 | !* Petra Seibert, Gerard Wotawa, Caroline Forster, Harald Sodemann, * |
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| 7 | !* * |
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| 8 | !* This file is part of FLEXPART WRF * |
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| 9 | !* * |
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| 10 | !* FLEXPART is free software: you can redistribute it and/or modify * |
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| 11 | !* it under the terms of the GNU General Public License as published by* |
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| 12 | !* the Free Software Foundation, either version 3 of the License, or * |
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| 13 | !* (at your option) any later version. * |
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| 14 | !* * |
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| 15 | !* FLEXPART is distributed in the hope that it will be useful, * |
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| 16 | !* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 17 | !* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 18 | !* GNU General Public License for more details. * |
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| 19 | !* * |
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| 20 | !* You should have received a copy of the GNU General Public License * |
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| 21 | !* along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
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| 22 | !*********************************************************************** |
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| 23 | |
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| 24 | subroutine outgrid_init_reg() |
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| 25 | !******************************************************************************* |
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| 26 | ! * |
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| 27 | ! Note: This is the FLEXPART_WRF version of subroutine outgrid_init. * |
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| 28 | ! The computational grid is the WRF x-y grid rather than lat-lon. * |
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| 29 | ! * |
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| 30 | ! This routine calculates, for each grid cell of the output grid, the * |
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| 31 | ! volume, the surface area, and the areas of the northward and eastward * |
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| 32 | ! facing surfaces. * |
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| 33 | ! * |
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| 34 | ! Author: A. Stohl * |
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| 35 | ! * |
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| 36 | ! 7 August 2002 * |
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| 37 | ! * |
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| 38 | ! 26 Oct 2005, R. Easter - changes in gridarea, areaeast, areanorth * |
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| 39 | ! associated with WRF horizontal grid. * |
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| 40 | ! Dec 2005, R. Easter - changed names of "*lon0*" & "*lat0*" variables * |
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| 41 | ! July 2012, J. Brioude - modified for regular output grid * |
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| 42 | !******************************************************************************* |
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| 43 | ! * |
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| 44 | ! Variables: * |
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| 45 | ! * |
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| 46 | ! area surface area of all output grid cells * |
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| 47 | ! areaeast eastward facing wall area of all output grid cells * |
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| 48 | ! areanorth northward facing wall area of all output grid cells * |
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| 49 | ! volume volumes of all output grid cells * |
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| 50 | ! * |
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| 51 | !******************************************************************************* |
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| 52 | |
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| 53 | use flux_mod |
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| 54 | use oh_mod |
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| 55 | use unc_mod |
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| 56 | use outg_mod |
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| 57 | use par_mod |
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| 58 | use com_mod |
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| 59 | |
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| 60 | ! include 'includepar' |
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| 61 | ! include 'includecom' |
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| 62 | implicit none |
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| 63 | integer :: ix,jy,kz,k,i,nage,l,iix,jjy,ixp,jyp,i1,j1,j,ngrid |
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| 64 | real :: ylat,gridarea,ylatp,ylatm,hzone,cosfact,cosfactm,cosfactp |
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| 65 | real :: ymet,xlon |
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| 66 | real :: xmet,xl,yl,ddx,ddy,rddx,rddy,p1,p2,p3,p4,xtn,ytn,oroh |
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| 67 | integer :: ks,kp,stat |
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| 68 | real,parameter :: eps=nxmax/3.e5 |
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| 69 | |
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| 70 | |
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| 71 | |
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| 72 | ! Compute surface area and volume of each grid cell: area, volume; |
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| 73 | ! and the areas of the northward and eastward facing walls: areaeast, areanorth |
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| 74 | !*********************************************************************** |
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| 75 | |
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| 76 | do jy=0,numygrid-1 |
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| 77 | |
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| 78 | ylat=outlat0+(float(jy)+0.5)*dyoutl |
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| 79 | ylatp=ylat+0.5*dyoutl |
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| 80 | ylatm=ylat-0.5*dyoutl |
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| 81 | if ((ylatm.lt.0).and.(ylatp.gt.0.)) then |
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| 82 | hzone=dyoutl*r_earth*pi180 |
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| 83 | else |
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| 84 | cosfact=cos(ylat*pi180)*r_earth |
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| 85 | cosfactp=cos(ylatp*pi180)*r_earth |
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| 86 | cosfactm=cos(ylatm*pi180)*r_earth |
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| 87 | if (cosfactp.lt.cosfactm) then |
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| 88 | hzone=sqrt(r_earth**2-cosfactp**2)- & |
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| 89 | sqrt(r_earth**2-cosfactm**2) |
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| 90 | else |
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| 91 | hzone=sqrt(r_earth**2-cosfactm**2)- & |
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| 92 | sqrt(r_earth**2-cosfactp**2) |
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| 93 | endif |
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| 94 | endif |
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| 95 | ! |
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| 96 | !C Surface are of a grid cell at a latitude ylat |
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| 97 | !*********************************************** |
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| 98 | ! |
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| 99 | gridarea=2.*pi*r_earth*hzone*dxoutl/360. |
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| 100 | |
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| 101 | ! for FLEXPART_WRF, dx & dy are in meters, and no cos(lat) is needed |
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| 102 | ! ??? maybe should incorporate map factor here, |
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| 103 | ! and also for areaeast & areanorth ??? |
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| 104 | ! gridarea=dxout*dyout |
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| 105 | |
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| 106 | do ix=0,numxgrid-1 |
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| 107 | area(ix,jy)=gridarea |
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| 108 | ! Volume = area x box height |
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| 109 | !*************************** |
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| 110 | |
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| 111 | volume(ix,jy,1)=area(ix,jy)*outheight(1) |
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| 112 | |
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| 113 | ! for FLEXPART_WRF, dx & dy are in meters, and no cos(lat) is needed |
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| 114 | areaeast(ix,jy,1)=dyoutl*r_earth*pi180*outheight(1) |
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| 115 | areanorth(ix,jy,1)=cos(ylat*pi180)*dxoutl*r_earth*pi180* & |
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| 116 | outheight(1) |
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| 117 | ! areaeast(ix,jy,1)=dyout*outheight(1) |
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| 118 | ! areanorth(ix,jy,1)=dxout*outheight(1) |
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| 119 | |
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| 120 | do kz=2,numzgrid |
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| 121 | |
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| 122 | areaeast(ix,jy,kz)=dyoutl*r_earth*pi180* & |
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| 123 | (outheight(kz)-outheight(kz-1)) |
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| 124 | areanorth(ix,jy,kz)=cos(ylat*pi180)*dxoutl*r_earth*pi180* & |
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| 125 | (outheight(kz)-outheight(kz-1)) |
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| 126 | ! areaeast(ix,jy,kz)=dyout*(outheight(kz)-outheight(kz-1)) |
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| 127 | ! areanorth(ix,jy,kz)=dxout*(outheight(kz)-outheight(kz-1)) |
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| 128 | |
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| 129 | volume(ix,jy,kz)=area(ix,jy)*(outheight(kz)-outheight(kz-1)) |
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| 130 | end do |
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| 131 | end do |
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| 132 | end do |
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| 133 | |
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| 134 | |
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| 135 | |
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| 136 | |
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| 137 | !****************************************************************** |
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| 138 | ! Determine average height of model topography in output grid cells |
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| 139 | !****************************************************************** |
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| 140 | |
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| 141 | ! Loop over all output grid cells |
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| 142 | !******************************** |
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| 143 | |
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| 144 | do jjy=0,numygrid-1 |
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| 145 | do iix=0,numxgrid-1 |
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| 146 | oroh=0. |
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| 147 | |
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| 148 | ! Take 100 samples of the topography in every grid cell |
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| 149 | !****************************************************** |
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| 150 | |
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| 151 | do j1=1,10 |
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| 152 | ! for FLEXPART_WRF, x & y coords are in meters, |
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| 153 | ! and the lon & lat variables below are in meters. |
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| 154 | ylat=outlat0+(float(jjy)+float(j1)/10.-0.05)*dyoutl !in degrees |
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| 155 | ! ymet=out_ym0+(real(jjy)+real(j1)/10.-0.05)*dyout |
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| 156 | ! yl=(ymet-ymet0)/dy |
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| 157 | do i1=1,10 |
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| 158 | xlon=outlon0+(float(iix)+float(i1)/10.-0.05)*dxoutl !in degrees |
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| 159 | call ll_to_xymeter_wrf(xlon,ylat,xmet,ymet) |
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| 160 | yl=(ymet-ymet0)/dy |
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| 161 | xl=(xmet-xmet0)/dx |
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| 162 | |
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| 163 | ! xmet=out_xm0+(real(iix)+real(i1)/10.-0.05)*dxout |
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| 164 | ! xl=(xmet-xmet0)/dx |
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| 165 | |
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| 166 | ! Determine the nest we are in |
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| 167 | !***************************** |
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| 168 | |
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| 169 | ngrid=0 |
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| 170 | do j=numbnests,1,-1 |
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| 171 | if ((xl.gt.xln(j)).and.(xl.lt.xrn(j)).and. & |
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| 172 | (yl.gt.yln(j)).and.(yl.lt.yrn(j))) then |
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| 173 | ngrid=j |
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| 174 | goto 43 |
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| 175 | endif |
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| 176 | end do |
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| 177 | 43 continue |
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| 178 | |
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| 179 | ! Determine (nested) grid coordinates and auxiliary parameters used for interpolation |
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| 180 | !************************************************************************************ |
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| 181 | |
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| 182 | if (ngrid.gt.0) then |
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| 183 | xtn=(xl-xln(ngrid))*xresoln(ngrid) |
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| 184 | ytn=(yl-yln(ngrid))*yresoln(ngrid) |
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| 185 | ix=int(xtn) |
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| 186 | jy=int(ytn) |
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| 187 | ddy=ytn-real(jy) |
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| 188 | ddx=xtn-real(ix) |
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| 189 | else |
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| 190 | ix=int(xl) |
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| 191 | jy=int(yl) |
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| 192 | ddy=yl-real(jy) |
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| 193 | ddx=xl-real(ix) |
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| 194 | endif |
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| 195 | ixp=ix+1 |
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| 196 | jyp=jy+1 |
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| 197 | rddx=1.-ddx |
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| 198 | rddy=1.-ddy |
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| 199 | p1=rddx*rddy |
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| 200 | p2=ddx*rddy |
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| 201 | p3=rddx*ddy |
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| 202 | p4=ddx*ddy |
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| 203 | |
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| 204 | if (ngrid.gt.0) then |
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| 205 | oroh=oroh+p1*oron(ix ,jy ,ngrid) & |
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| 206 | + p2*oron(ixp,jy ,ngrid) & |
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| 207 | + p3*oron(ix ,jyp,ngrid) & |
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| 208 | + p4*oron(ixp,jyp,ngrid) |
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| 209 | else |
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| 210 | oroh=oroh+p1*oro(ix ,jy) & |
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| 211 | + p2*oro(ixp,jy) & |
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| 212 | + p3*oro(ix ,jyp) & |
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| 213 | + p4*oro(ixp,jyp) |
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| 214 | endif |
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| 215 | end do |
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| 216 | end do |
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| 217 | |
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| 218 | ! Divide by the number of samples taken |
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| 219 | !************************************** |
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| 220 | |
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| 221 | oroout(iix,jjy)=oroh/100. |
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| 222 | end do |
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| 223 | end do |
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| 224 | |
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| 225 | |
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| 226 | ! if necessary allocate flux fields |
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| 227 | if (iflux.eq.1) then |
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| 228 | allocate(flux(6,0:numxgrid-1,0:numygrid-1,numzgrid, & |
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| 229 | 1:nspec,1:maxpointspec_act,1:nageclass),stat=stat) |
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| 230 | if (stat.ne.0) write(*,*)'ERROR: could not allocate flux array ' |
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| 231 | endif |
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| 232 | |
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| 233 | !write (*,*) 'allocating: in a sec',OHREA |
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| 234 | if (OHREA.eqv..TRUE.) then |
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| 235 | ! write (*,*) 'allocating: ',maxxOH,maxyOH,maxzOH |
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| 236 | allocate(OH_field(12,0:maxxOH-1,0:maxyOH-1,maxzOH) & |
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| 237 | ,stat=stat) |
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| 238 | if (stat.ne.0) write(*,*)'ERROR: could not allocate OH array ' |
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| 239 | allocate(OH_field_height(7) & |
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| 240 | ,stat=stat) |
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| 241 | if (stat.ne.0) write(*,*)'ERROR: could not allocate OH array ' |
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| 242 | endif |
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| 243 | ! gridunc,griduncn uncertainty of outputted concentrations |
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| 244 | allocate(gridunc(0:numxgrid-1,0:numygrid-1,numzgrid,maxspec, & |
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| 245 | maxpointspec_act,nclassunc,maxageclass),stat=stat) |
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| 246 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 247 | |
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| 248 | print*,'alloc gridunc',numxgrid-1,numygrid-1,numzgrid,maxspec, & |
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| 249 | maxpointspec_act,nclassunc,maxageclass |
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| 250 | if (ldirect.gt.0) then |
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| 251 | allocate(wetgridunc(0:numxgrid-1,0:numygrid-1,maxspec, & |
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| 252 | maxpointspec_act,nclassunc,maxageclass),stat=stat) |
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| 253 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 254 | allocate(drygridunc(0:numxgrid-1,0:numygrid-1,maxspec, & |
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| 255 | maxpointspec_act,nclassunc,maxageclass),stat=stat) |
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| 256 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 257 | allocate(drygridunc2(0:numxgrid-1,0:numygrid-1,maxspec, & |
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| 258 | maxpointspec_act,nclassunc,maxageclass),stat=stat) |
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| 259 | endif |
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| 260 | !write (*,*) 'Dimensions for fields', numxgrid,numygrid, & |
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| 261 | ! maxspec,maxpointspec_act,nclassunc,maxageclass |
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| 262 | |
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| 263 | write (*,*) ' Allocating fields for nested and global output (x,y): ', & |
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| 264 | max(numxgrid,numxgridn),max(numygrid,numygridn) |
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| 265 | |
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| 266 | ! allocate fields for concoutput with maximum dimension of outgrid |
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| 267 | ! and outgrid_nest |
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| 268 | allocate(gridsigma(0:max(numxgrid,numxgridn)-1, & |
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| 269 | 0:max(numygrid,numygridn)-1,numzgrid),stat=stat) |
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| 270 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 271 | allocate(grid(0:max(numxgrid,numxgridn)-1, & |
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| 272 | 0:max(numygrid,numygridn)-1,numzgrid),stat=stat) |
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| 273 | allocate(grid2(0:max(numxgrid,numxgridn)-1, & |
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| 274 | 0:max(numygrid,numygridn)-1,numzgrid,maxpointspec_act),stat=stat) |
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| 275 | allocate(grid3(0:max(numxgrid,numxgridn)-1, & |
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| 276 | 0:max(numygrid,numygridn)-1,numzgrid,maxpointspec_act),stat=stat) |
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| 277 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 278 | allocate(densityoutgrid(0:max(numxgrid,numxgridn)-1, & |
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| 279 | 0:max(numygrid,numygridn)-1,numzgrid),stat=stat) |
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| 280 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 281 | |
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| 282 | allocate(factor3d(0:max(numxgrid,numxgridn)-1, & |
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| 283 | 0:max(numygrid,numygridn)-1,numzgrid),stat=stat) |
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| 284 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 285 | allocate(sparse_dump_r(max(numxgrid,numxgridn)* & |
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| 286 | max(numygrid,numygridn)*numzgrid),stat=stat) |
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| 287 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 288 | allocate(sparse_dump_i(max(numxgrid,numxgridn)* & |
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| 289 | max(numygrid,numygridn)*numzgrid),stat=stat) |
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| 290 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 291 | |
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| 292 | ! deposition fields are only allocated for forward runs |
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| 293 | if (ldirect.gt.0) then |
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| 294 | allocate(wetgridsigma(0:max(numxgrid,numxgridn)-1, & |
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| 295 | 0:max(numygrid,numygridn)-1),stat=stat) |
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| 296 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 297 | allocate(drygridsigma(0:max(numxgrid,numxgridn)-1, & |
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| 298 | 0:max(numygrid,numygridn)-1),stat=stat) |
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| 299 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 300 | allocate(wetgrid(0:max(numxgrid,numxgridn)-1, & |
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| 301 | 0:max(numygrid,numygridn)-1),stat=stat) |
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| 302 | allocate(wetgrid2(0:max(numxgrid,numxgridn)-1, & |
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| 303 | 0:max(numygrid,numygridn)-1,maxpointspec_act),stat=stat) |
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| 304 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 305 | allocate(drygrid(0:max(numxgrid,numxgridn)-1, & |
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| 306 | 0:max(numygrid,numygridn)-1),stat=stat) |
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| 307 | allocate(drygrid2(0:max(numxgrid,numxgridn)-1, & |
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| 308 | 0:max(numygrid,numygridn)-1,maxpointspec_act),stat=stat) |
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| 309 | if (stat.ne.0) write(*,*)'ERROR: could not allocate gridunc' |
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| 310 | endif |
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| 311 | |
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| 312 | ! Initial condition field |
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| 313 | |
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| 314 | if (linit_cond.gt.0) then |
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| 315 | allocate(init_cond(0:numxgrid-1,0:numygrid-1,numzgrid,maxspec, & |
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| 316 | maxpointspec_act),stat=stat) |
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| 317 | if (stat.ne.0) write(*,*)'ERROR: could not allocate init_cond' |
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| 318 | endif |
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| 319 | |
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| 320 | !************************ |
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| 321 | ! Initialize output grids |
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| 322 | !************************ |
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| 323 | |
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| 324 | do ks=1,nspec |
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| 325 | do kp=1,maxpointspec_act |
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| 326 | do i=1,numreceptor |
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| 327 | ! Receptor points |
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| 328 | creceptor(i,ks)=0. |
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| 329 | end do |
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| 330 | do nage=1,nageclass |
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| 331 | do jy=0,numygrid-1 |
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| 332 | do ix=0,numxgrid-1 |
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| 333 | do l=1,nclassunc |
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| 334 | ! Deposition fields |
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| 335 | if (ldirect.gt.0) then |
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| 336 | wetgridunc(ix,jy,ks,kp,l,nage)=0. |
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| 337 | drygridunc(ix,jy,ks,kp,l,nage)=0. |
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| 338 | endif |
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| 339 | do kz=1,numzgrid |
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| 340 | if (iflux.eq.1) then |
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| 341 | ! Flux fields |
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| 342 | do i=1,5 |
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| 343 | flux(i,ix,jy,kz,ks,kp,nage)=0. |
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| 344 | end do |
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| 345 | endif |
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| 346 | ! Initial condition field |
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| 347 | if ((l.eq.1).and.(nage.eq.1).and.(linit_cond.gt.0)) & |
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| 348 | init_cond(ix,jy,kz,ks,kp)=0. |
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| 349 | ! Concentration fields |
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| 350 | gridunc(ix,jy,kz,ks,kp,l,nage)=0. |
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| 351 | end do |
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| 352 | end do |
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| 353 | end do |
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| 354 | end do |
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| 355 | end do |
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| 356 | end do |
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| 357 | end do |
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| 358 | |
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| 359 | |
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| 360 | |
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| 361 | end subroutine outgrid_init_reg |
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| 362 | |
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