[6] | 1 | !********************************************************************** |
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| 2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
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| 3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
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| 4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
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| 5 | ! * |
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| 6 | ! This file is part of FLEXPART. * |
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| 7 | ! * |
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| 8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
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| 9 | ! it under the terms of the GNU General Public License as published by* |
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| 10 | ! the Free Software Foundation, either version 3 of the License, or * |
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| 11 | ! (at your option) any later version. * |
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| 12 | ! * |
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| 13 | ! FLEXPART is distributed in the hope that it will be useful, * |
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| 14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 16 | ! GNU General Public License for more details. * |
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| 17 | ! * |
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| 18 | ! You should have received a copy of the GNU General Public License * |
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| 19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
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| 20 | !********************************************************************** |
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| 21 | |
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| 22 | subroutine verttransform(n,uuh,vvh,wwh,pvh) |
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| 23 | ! i i i i i |
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| 24 | !***************************************************************************** |
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| 25 | ! * |
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| 26 | ! This subroutine transforms temperature, dew point temperature and * |
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| 27 | ! wind components from eta to meter coordinates. * |
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| 28 | ! The vertical wind component is transformed from Pa/s to m/s using * |
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| 29 | ! the conversion factor pinmconv. * |
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| 30 | ! In addition, this routine calculates vertical density gradients * |
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| 31 | ! needed for the parameterization of the turbulent velocities. * |
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| 32 | ! * |
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| 33 | ! Author: A. Stohl, G. Wotawa * |
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| 34 | ! * |
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| 35 | ! 12 August 1996 * |
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| 36 | ! Update: 16 January 1998 * |
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| 37 | ! * |
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| 38 | ! Major update: 17 February 1999 * |
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| 39 | ! by G. Wotawa * |
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| 40 | ! * |
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| 41 | ! - Vertical levels for u, v and w are put together * |
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| 42 | ! - Slope correction for vertical velocity: Modification of calculation * |
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| 43 | ! procedure * |
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| 44 | ! * |
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| 45 | !***************************************************************************** |
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| 46 | ! Changes, Bernd C. Krueger, Feb. 2001: |
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| 47 | ! Variables tth and qvh (on eta coordinates) from common block |
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| 48 | !***************************************************************************** |
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| 49 | ! Sabine Eckhardt, March 2007 |
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| 50 | ! added the variable cloud for use with scavenging - descr. in com_mod |
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| 51 | !***************************************************************************** |
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| 52 | ! * |
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| 53 | ! Variables: * |
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| 54 | ! nx,ny,nz field dimensions in x,y and z direction * |
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| 55 | ! clouds(0:nxmax,0:nymax,0:nzmax,2) cloud field for wet deposition * |
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| 56 | ! uu(0:nxmax,0:nymax,nzmax,2) wind components in x-direction [m/s] * |
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| 57 | ! vv(0:nxmax,0:nymax,nzmax,2) wind components in y-direction [m/s] * |
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| 58 | ! ww(0:nxmax,0:nymax,nzmax,2) wind components in z-direction [deltaeta/s]* |
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| 59 | ! tt(0:nxmax,0:nymax,nzmax,2) temperature [K] * |
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| 60 | ! pv(0:nxmax,0:nymax,nzmax,2) potential voriticity (pvu) * |
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| 61 | ! ps(0:nxmax,0:nymax,2) surface pressure [Pa] * |
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| 62 | ! * |
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| 63 | !***************************************************************************** |
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| 64 | |
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| 65 | use par_mod |
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| 66 | use com_mod |
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| 67 | use cmapf_mod, only: cc2gll |
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| 68 | |
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| 69 | implicit none |
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| 70 | |
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| 71 | integer :: ix,jy,kz,iz,n,kmin,kl,klp,ix1,jy1,ixp,jyp,ixm,jym |
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| 72 | integer :: rain_cloud_above,kz_inv |
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| 73 | real :: f_qvsat,pressure |
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| 74 | real :: rh,lsp,convp |
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| 75 | real :: uvzlev(nuvzmax),rhoh(nuvzmax),pinmconv(nzmax) |
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| 76 | real :: ew,pint,tv,tvold,pold,dz1,dz2,dz,ui,vi |
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| 77 | real :: xlon,ylat,xlonr,dzdx,dzdy |
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| 78 | real :: dzdx1,dzdx2,dzdy1,dzdy2 |
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| 79 | real :: uuaux,vvaux,uupolaux,vvpolaux,ddpol,ffpol,wdummy |
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| 80 | real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 81 | real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 82 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 83 | real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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| 84 | real :: wzlev(nwzmax),uvwzlev(0:nxmax-1,0:nymax-1,nzmax) |
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| 85 | real,parameter :: const=r_air/ga |
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| 86 | |
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| 87 | logical :: init = .true. |
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| 88 | |
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| 89 | |
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| 90 | !************************************************************************* |
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| 91 | ! If verttransform is called the first time, initialize heights of the * |
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| 92 | ! z levels in meter. The heights are the heights of model levels, where * |
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| 93 | ! u,v,T and qv are given, and of the interfaces, where w is given. So, * |
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| 94 | ! the vertical resolution in the z system is doubled. As reference point,* |
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| 95 | ! the lower left corner of the grid is used. * |
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| 96 | ! Unlike in the eta system, no difference between heights for u,v and * |
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| 97 | ! heights for w exists. * |
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| 98 | !************************************************************************* |
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| 99 | |
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| 100 | |
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| 101 | ! do 897 kz=1,nuvz |
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| 102 | ! write (*,*) 'akz: ',akz(kz),'bkz',bkz(kz) |
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| 103 | !897 continue |
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| 104 | |
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| 105 | if (init) then |
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| 106 | |
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| 107 | ! Search for a point with high surface pressure (i.e. not above significant topography) |
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| 108 | ! Then, use this point to construct a reference z profile, to be used at all times |
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| 109 | !***************************************************************************** |
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| 110 | |
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| 111 | do jy=0,nymin1 |
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| 112 | do ix=0,nxmin1 |
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| 113 | if (ps(ix,jy,1,n).gt.100000.) then |
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| 114 | ixm=ix |
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| 115 | jym=jy |
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| 116 | goto 3 |
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| 117 | endif |
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| 118 | end do |
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| 119 | end do |
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| 120 | 3 continue |
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| 121 | |
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| 122 | |
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| 123 | tvold=tt2(ixm,jym,1,n)*(1.+0.378*ew(td2(ixm,jym,1,n))/ & |
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| 124 | ps(ixm,jym,1,n)) |
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| 125 | pold=ps(ixm,jym,1,n) |
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| 126 | height(1)=0. |
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| 127 | |
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| 128 | do kz=2,nuvz |
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| 129 | pint=akz(kz)+bkz(kz)*ps(ixm,jym,1,n) |
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| 130 | tv=tth(ixm,jym,kz,n)*(1.+0.608*qvh(ixm,jym,kz,n)) |
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| 131 | |
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| 132 | |
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| 133 | ! NOTE: In FLEXPART versions up to 4.0, the number of model levels was doubled |
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| 134 | ! upon the transformation to z levels. In order to save computer memory, this is |
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| 135 | ! not done anymore in the standard version. However, this option can still be |
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| 136 | ! switched on by replacing the following lines with those below, that are |
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| 137 | ! currently commented out. |
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| 138 | ! Note that two more changes are necessary in this subroutine below. |
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| 139 | ! One change is also necessary in gridcheck.f, and another one in verttransform_nests. |
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| 140 | !***************************************************************************** |
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| 141 | |
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| 142 | if (abs(tv-tvold).gt.0.2) then |
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| 143 | height(kz)= & |
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| 144 | height(kz-1)+const*log(pold/pint)* & |
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| 145 | (tv-tvold)/log(tv/tvold) |
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| 146 | else |
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| 147 | height(kz)=height(kz-1)+ & |
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| 148 | const*log(pold/pint)*tv |
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| 149 | endif |
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| 150 | |
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| 151 | ! Switch on following lines to use doubled vertical resolution |
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| 152 | !************************************************************* |
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| 153 | ! if (abs(tv-tvold).gt.0.2) then |
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| 154 | ! height((kz-1)*2)= |
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| 155 | ! + height(max((kz-2)*2,1))+const*log(pold/pint)* |
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| 156 | ! + (tv-tvold)/log(tv/tvold) |
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| 157 | ! else |
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| 158 | ! height((kz-1)*2)=height(max((kz-2)*2,1))+ |
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| 159 | ! + const*log(pold/pint)*tv |
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| 160 | ! endif |
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| 161 | ! End doubled vertical resolution |
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| 162 | |
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| 163 | tvold=tv |
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| 164 | pold=pint |
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| 165 | end do |
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| 166 | |
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| 167 | |
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| 168 | ! Switch on following lines to use doubled vertical resolution |
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| 169 | !************************************************************* |
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| 170 | ! do 7 kz=3,nz-1,2 |
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| 171 | ! height(kz)=0.5*(height(kz-1)+height(kz+1)) |
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| 172 | ! height(nz)=height(nz-1)+height(nz-1)-height(nz-2) |
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| 173 | ! End doubled vertical resolution |
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| 174 | |
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| 175 | |
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| 176 | ! Determine highest levels that can be within PBL |
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| 177 | !************************************************ |
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| 178 | |
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| 179 | do kz=1,nz |
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| 180 | if (height(kz).gt.hmixmax) then |
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| 181 | nmixz=kz |
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| 182 | goto 9 |
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| 183 | endif |
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| 184 | end do |
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| 185 | 9 continue |
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| 186 | |
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| 187 | ! Do not repeat initialization of the Cartesian z grid |
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| 188 | !***************************************************** |
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| 189 | |
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| 190 | init=.false. |
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| 191 | |
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| 192 | endif |
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| 193 | |
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| 194 | |
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| 195 | ! Loop over the whole grid |
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| 196 | !************************* |
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| 197 | |
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| 198 | do jy=0,nymin1 |
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| 199 | do ix=0,nxmin1 |
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| 200 | tvold=tt2(ix,jy,1,n)*(1.+0.378*ew(td2(ix,jy,1,n))/ & |
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| 201 | ps(ix,jy,1,n)) |
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| 202 | pold=ps(ix,jy,1,n) |
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| 203 | uvzlev(1)=0. |
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| 204 | wzlev(1)=0. |
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| 205 | rhoh(1)=pold/(r_air*tvold) |
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| 206 | |
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| 207 | |
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| 208 | ! Compute heights of eta levels |
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| 209 | !****************************** |
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| 210 | |
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| 211 | do kz=2,nuvz |
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| 212 | pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) |
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| 213 | tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n)) |
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| 214 | rhoh(kz)=pint/(r_air*tv) |
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| 215 | |
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| 216 | if (abs(tv-tvold).gt.0.2) then |
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| 217 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)* & |
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| 218 | (tv-tvold)/log(tv/tvold) |
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| 219 | else |
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| 220 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)*tv |
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| 221 | endif |
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| 222 | |
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| 223 | tvold=tv |
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| 224 | pold=pint |
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| 225 | end do |
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| 226 | |
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| 227 | |
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| 228 | do kz=2,nwz-1 |
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| 229 | wzlev(kz)=(uvzlev(kz+1)+uvzlev(kz))/2. |
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| 230 | end do |
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| 231 | wzlev(nwz)=wzlev(nwz-1)+ & |
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| 232 | uvzlev(nuvz)-uvzlev(nuvz-1) |
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| 233 | |
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| 234 | uvwzlev(ix,jy,1)=0.0 |
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| 235 | do kz=2,nuvz |
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| 236 | uvwzlev(ix,jy,kz)=uvzlev(kz) |
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| 237 | end do |
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| 238 | |
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| 239 | ! Switch on following lines to use doubled vertical resolution |
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| 240 | ! Switch off the three lines above. |
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| 241 | !************************************************************* |
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| 242 | !22 uvwzlev(ix,jy,(kz-1)*2)=uvzlev(kz) |
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| 243 | ! do 23 kz=2,nwz |
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| 244 | !23 uvwzlev(ix,jy,(kz-1)*2+1)=wzlev(kz) |
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| 245 | ! End doubled vertical resolution |
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| 246 | |
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| 247 | ! pinmconv=(h2-h1)/(p2-p1) |
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| 248 | |
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| 249 | pinmconv(1)=(uvwzlev(ix,jy,2)-uvwzlev(ix,jy,1))/ & |
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| 250 | ((aknew(2)+bknew(2)*ps(ix,jy,1,n))- & |
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| 251 | (aknew(1)+bknew(1)*ps(ix,jy,1,n))) |
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| 252 | do kz=2,nz-1 |
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| 253 | pinmconv(kz)=(uvwzlev(ix,jy,kz+1)-uvwzlev(ix,jy,kz-1))/ & |
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| 254 | ((aknew(kz+1)+bknew(kz+1)*ps(ix,jy,1,n))- & |
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| 255 | (aknew(kz-1)+bknew(kz-1)*ps(ix,jy,1,n))) |
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| 256 | end do |
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| 257 | pinmconv(nz)=(uvwzlev(ix,jy,nz)-uvwzlev(ix,jy,nz-1))/ & |
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| 258 | ((aknew(nz)+bknew(nz)*ps(ix,jy,1,n))- & |
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| 259 | (aknew(nz-1)+bknew(nz-1)*ps(ix,jy,1,n))) |
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| 260 | |
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| 261 | ! Levels, where u,v,t and q are given |
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| 262 | !************************************ |
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| 263 | |
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| 264 | uu(ix,jy,1,n)=uuh(ix,jy,1) |
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| 265 | vv(ix,jy,1,n)=vvh(ix,jy,1) |
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| 266 | tt(ix,jy,1,n)=tth(ix,jy,1,n) |
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| 267 | qv(ix,jy,1,n)=qvh(ix,jy,1,n) |
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| 268 | pv(ix,jy,1,n)=pvh(ix,jy,1) |
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| 269 | rho(ix,jy,1,n)=rhoh(1) |
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| 270 | uu(ix,jy,nz,n)=uuh(ix,jy,nuvz) |
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| 271 | vv(ix,jy,nz,n)=vvh(ix,jy,nuvz) |
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| 272 | tt(ix,jy,nz,n)=tth(ix,jy,nuvz,n) |
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| 273 | qv(ix,jy,nz,n)=qvh(ix,jy,nuvz,n) |
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| 274 | pv(ix,jy,nz,n)=pvh(ix,jy,nuvz) |
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| 275 | rho(ix,jy,nz,n)=rhoh(nuvz) |
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| 276 | kmin=2 |
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| 277 | do iz=2,nz-1 |
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| 278 | do kz=kmin,nuvz |
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| 279 | if(height(iz).gt.uvzlev(nuvz)) then |
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| 280 | uu(ix,jy,iz,n)=uu(ix,jy,nz,n) |
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| 281 | vv(ix,jy,iz,n)=vv(ix,jy,nz,n) |
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| 282 | tt(ix,jy,iz,n)=tt(ix,jy,nz,n) |
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| 283 | qv(ix,jy,iz,n)=qv(ix,jy,nz,n) |
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| 284 | pv(ix,jy,iz,n)=pv(ix,jy,nz,n) |
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| 285 | rho(ix,jy,iz,n)=rho(ix,jy,nz,n) |
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| 286 | goto 30 |
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| 287 | endif |
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| 288 | if ((height(iz).gt.uvzlev(kz-1)).and. & |
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| 289 | (height(iz).le.uvzlev(kz))) then |
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| 290 | dz1=height(iz)-uvzlev(kz-1) |
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| 291 | dz2=uvzlev(kz)-height(iz) |
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| 292 | dz=dz1+dz2 |
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| 293 | uu(ix,jy,iz,n)=(uuh(ix,jy,kz-1)*dz2+uuh(ix,jy,kz)*dz1)/dz |
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| 294 | vv(ix,jy,iz,n)=(vvh(ix,jy,kz-1)*dz2+vvh(ix,jy,kz)*dz1)/dz |
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| 295 | tt(ix,jy,iz,n)=(tth(ix,jy,kz-1,n)*dz2 & |
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| 296 | +tth(ix,jy,kz,n)*dz1)/dz |
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| 297 | qv(ix,jy,iz,n)=(qvh(ix,jy,kz-1,n)*dz2 & |
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| 298 | +qvh(ix,jy,kz,n)*dz1)/dz |
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| 299 | pv(ix,jy,iz,n)=(pvh(ix,jy,kz-1)*dz2+pvh(ix,jy,kz)*dz1)/dz |
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| 300 | rho(ix,jy,iz,n)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
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| 301 | kmin=kz |
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| 302 | goto 30 |
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| 303 | endif |
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| 304 | end do |
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| 305 | 30 continue |
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| 306 | end do |
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| 307 | |
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| 308 | |
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| 309 | ! Levels, where w is given |
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| 310 | !************************* |
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| 311 | |
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| 312 | ww(ix,jy,1,n)=wwh(ix,jy,1)*pinmconv(1) |
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| 313 | ww(ix,jy,nz,n)=wwh(ix,jy,nwz)*pinmconv(nz) |
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| 314 | kmin=2 |
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| 315 | do iz=2,nz |
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| 316 | do kz=kmin,nwz |
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| 317 | if ((height(iz).gt.wzlev(kz-1)).and. & |
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| 318 | (height(iz).le.wzlev(kz))) then |
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| 319 | dz1=height(iz)-wzlev(kz-1) |
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| 320 | dz2=wzlev(kz)-height(iz) |
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| 321 | dz=dz1+dz2 |
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| 322 | ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*pinmconv(kz-1)*dz2 & |
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| 323 | +wwh(ix,jy,kz)*pinmconv(kz)*dz1)/dz |
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| 324 | kmin=kz |
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| 325 | goto 40 |
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| 326 | endif |
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| 327 | end do |
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| 328 | 40 continue |
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| 329 | end do |
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| 330 | |
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| 331 | ! Compute density gradients at intermediate levels |
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| 332 | !************************************************* |
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| 333 | |
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| 334 | drhodz(ix,jy,1,n)=(rho(ix,jy,2,n)-rho(ix,jy,1,n))/ & |
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| 335 | (height(2)-height(1)) |
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| 336 | do kz=2,nz-1 |
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| 337 | drhodz(ix,jy,kz,n)=(rho(ix,jy,kz+1,n)-rho(ix,jy,kz-1,n))/ & |
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| 338 | (height(kz+1)-height(kz-1)) |
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| 339 | end do |
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| 340 | drhodz(ix,jy,nz,n)=drhodz(ix,jy,nz-1,n) |
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| 341 | |
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| 342 | end do |
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| 343 | end do |
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| 344 | |
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| 345 | |
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| 346 | !**************************************************************** |
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| 347 | ! Compute slope of eta levels in windward direction and resulting |
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| 348 | ! vertical wind correction |
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| 349 | !**************************************************************** |
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| 350 | |
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| 351 | do jy=1,ny-2 |
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| 352 | do ix=1,nx-2 |
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| 353 | |
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| 354 | kmin=2 |
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| 355 | do iz=2,nz-1 |
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| 356 | |
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| 357 | ui=uu(ix,jy,iz,n)*dxconst/cos((real(jy)*dy+ylat0)*pi180) |
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| 358 | vi=vv(ix,jy,iz,n)*dyconst |
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| 359 | |
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| 360 | do kz=kmin,nz |
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| 361 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
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| 362 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
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| 363 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
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| 364 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
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| 365 | dz=dz1+dz2 |
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| 366 | kl=kz-1 |
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| 367 | klp=kz |
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| 368 | kmin=kz |
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| 369 | goto 47 |
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| 370 | endif |
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| 371 | end do |
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| 372 | |
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| 373 | 47 ix1=ix-1 |
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| 374 | jy1=jy-1 |
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| 375 | ixp=ix+1 |
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| 376 | jyp=jy+1 |
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| 377 | |
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| 378 | dzdx1=(uvwzlev(ixp,jy,kl)-uvwzlev(ix1,jy,kl))/2. |
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| 379 | dzdx2=(uvwzlev(ixp,jy,klp)-uvwzlev(ix1,jy,klp))/2. |
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| 380 | dzdx=(dzdx1*dz2+dzdx2*dz1)/dz |
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| 381 | |
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| 382 | dzdy1=(uvwzlev(ix,jyp,kl)-uvwzlev(ix,jy1,kl))/2. |
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| 383 | dzdy2=(uvwzlev(ix,jyp,klp)-uvwzlev(ix,jy1,klp))/2. |
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| 384 | dzdy=(dzdy1*dz2+dzdy2*dz1)/dz |
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| 385 | |
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| 386 | ww(ix,jy,iz,n)=ww(ix,jy,iz,n)+(dzdx*ui+dzdy*vi) |
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| 387 | |
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| 388 | end do |
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| 389 | |
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| 390 | end do |
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| 391 | end do |
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| 392 | |
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| 393 | |
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| 394 | ! If north pole is in the domain, calculate wind velocities in polar |
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| 395 | ! stereographic coordinates |
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| 396 | !******************************************************************* |
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| 397 | |
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| 398 | if (nglobal) then |
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| 399 | do jy=int(switchnorthg)-2,nymin1 |
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| 400 | ylat=ylat0+real(jy)*dy |
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| 401 | do ix=0,nxmin1 |
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| 402 | xlon=xlon0+real(ix)*dx |
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| 403 | do iz=1,nz |
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| 404 | call cc2gll(northpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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| 405 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
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| 406 | vvpol(ix,jy,iz,n)) |
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| 407 | end do |
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| 408 | end do |
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| 409 | end do |
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| 410 | |
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| 411 | |
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| 412 | do iz=1,nz |
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| 413 | |
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| 414 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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| 415 | ! |
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| 416 | ! AMSnauffer Nov 18 2004 Added check for case vv=0 |
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| 417 | ! |
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| 418 | xlon=xlon0+real(nx/2-1)*dx |
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| 419 | xlonr=xlon*pi/180. |
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| 420 | ffpol=sqrt(uu(nx/2-1,nymin1,iz,n)**2+ & |
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| 421 | vv(nx/2-1,nymin1,iz,n)**2) |
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| 422 | if (vv(nx/2-1,nymin1,iz,n).lt.0.) then |
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| 423 | ddpol=atan(uu(nx/2-1,nymin1,iz,n)/ & |
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| 424 | vv(nx/2-1,nymin1,iz,n))-xlonr |
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| 425 | else if (vv(nx/2-1,nymin1,iz,n).gt.0.) then |
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| 426 | ddpol=pi+atan(uu(nx/2-1,nymin1,iz,n)/ & |
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| 427 | vv(nx/2-1,nymin1,iz,n))-xlonr |
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| 428 | else |
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| 429 | ddpol=pi/2-xlonr |
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| 430 | endif |
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| 431 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
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| 432 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
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| 433 | |
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| 434 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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| 435 | xlon=180.0 |
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| 436 | xlonr=xlon*pi/180. |
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| 437 | ylat=90.0 |
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| 438 | uuaux=-ffpol*sin(xlonr+ddpol) |
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| 439 | vvaux=-ffpol*cos(xlonr+ddpol) |
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| 440 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux, & |
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| 441 | vvpolaux) |
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| 442 | |
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| 443 | jy=nymin1 |
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| 444 | do ix=0,nxmin1 |
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| 445 | uupol(ix,jy,iz,n)=uupolaux |
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| 446 | vvpol(ix,jy,iz,n)=vvpolaux |
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| 447 | end do |
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| 448 | end do |
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| 449 | |
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| 450 | |
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| 451 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
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| 452 | ! ward parallel of latitude |
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| 453 | |
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| 454 | do iz=1,nz |
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| 455 | wdummy=0. |
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| 456 | jy=ny-2 |
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| 457 | do ix=0,nxmin1 |
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| 458 | wdummy=wdummy+ww(ix,jy,iz,n) |
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| 459 | end do |
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| 460 | wdummy=wdummy/real(nx) |
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| 461 | jy=nymin1 |
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| 462 | do ix=0,nxmin1 |
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| 463 | ww(ix,jy,iz,n)=wdummy |
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| 464 | end do |
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| 465 | end do |
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| 466 | |
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| 467 | endif |
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| 468 | |
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| 469 | |
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| 470 | ! If south pole is in the domain, calculate wind velocities in polar |
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| 471 | ! stereographic coordinates |
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| 472 | !******************************************************************* |
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| 473 | |
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| 474 | if (sglobal) then |
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| 475 | do jy=0,int(switchsouthg)+3 |
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| 476 | ylat=ylat0+real(jy)*dy |
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| 477 | do ix=0,nxmin1 |
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| 478 | xlon=xlon0+real(ix)*dx |
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| 479 | do iz=1,nz |
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| 480 | call cc2gll(southpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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| 481 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
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| 482 | vvpol(ix,jy,iz,n)) |
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| 483 | end do |
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| 484 | end do |
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| 485 | end do |
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| 486 | |
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| 487 | do iz=1,nz |
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| 488 | |
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| 489 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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| 490 | ! |
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| 491 | ! AMSnauffer Nov 18 2004 Added check for case vv=0 |
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| 492 | ! |
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| 493 | xlon=xlon0+real(nx/2-1)*dx |
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| 494 | xlonr=xlon*pi/180. |
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| 495 | ffpol=sqrt(uu(nx/2-1,0,iz,n)**2+ & |
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| 496 | vv(nx/2-1,0,iz,n)**2) |
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| 497 | if (vv(nx/2-1,0,iz,n).lt.0.) then |
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| 498 | ddpol=atan(uu(nx/2-1,0,iz,n)/ & |
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| 499 | vv(nx/2-1,0,iz,n))+xlonr |
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| 500 | else if (vv(nx/2-1,0,iz,n).gt.0.) then |
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| 501 | ddpol=pi+atan(uu(nx/2-1,0,iz,n)/ & |
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| 502 | vv(nx/2-1,0,iz,n))+xlonr |
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| 503 | else |
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| 504 | ddpol=pi/2-xlonr |
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| 505 | endif |
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| 506 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
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| 507 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
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| 508 | |
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| 509 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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| 510 | xlon=180.0 |
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| 511 | xlonr=xlon*pi/180. |
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| 512 | ylat=-90.0 |
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| 513 | uuaux=+ffpol*sin(xlonr-ddpol) |
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| 514 | vvaux=-ffpol*cos(xlonr-ddpol) |
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| 515 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux, & |
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| 516 | vvpolaux) |
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| 517 | |
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| 518 | jy=0 |
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| 519 | do ix=0,nxmin1 |
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| 520 | uupol(ix,jy,iz,n)=uupolaux |
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| 521 | vvpol(ix,jy,iz,n)=vvpolaux |
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| 522 | end do |
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| 523 | end do |
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| 524 | |
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| 525 | |
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| 526 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
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| 527 | ! ward parallel of latitude |
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| 528 | |
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| 529 | do iz=1,nz |
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| 530 | wdummy=0. |
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| 531 | jy=1 |
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| 532 | do ix=0,nxmin1 |
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| 533 | wdummy=wdummy+ww(ix,jy,iz,n) |
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| 534 | end do |
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| 535 | wdummy=wdummy/real(nx) |
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| 536 | jy=0 |
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| 537 | do ix=0,nxmin1 |
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| 538 | ww(ix,jy,iz,n)=wdummy |
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| 539 | end do |
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| 540 | end do |
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| 541 | endif |
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| 542 | |
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| 543 | |
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| 544 | !write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz |
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| 545 | ! create a cloud and rainout/washout field, clouds occur where rh>80% |
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| 546 | ! total cloudheight is stored at level 0 |
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| 547 | do jy=0,nymin1 |
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| 548 | do ix=0,nxmin1 |
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| 549 | rain_cloud_above=0 |
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| 550 | lsp=lsprec(ix,jy,1,n) |
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| 551 | convp=convprec(ix,jy,1,n) |
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| 552 | cloudsh(ix,jy,n)=0 |
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| 553 | do kz_inv=1,nz-1 |
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| 554 | kz=nz-kz_inv+1 |
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| 555 | pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
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| 556 | rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
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| 557 | clouds(ix,jy,kz,n)=0 |
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| 558 | if (rh.gt.0.8) then ! in cloud |
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| 559 | if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
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| 560 | rain_cloud_above=1 |
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| 561 | cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+ & |
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| 562 | height(kz)-height(kz-1) |
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| 563 | if (lsp.ge.convp) then |
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| 564 | clouds(ix,jy,kz,n)=3 ! lsp dominated rainout |
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| 565 | else |
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| 566 | clouds(ix,jy,kz,n)=2 ! convp dominated rainout |
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| 567 | endif |
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| 568 | else ! no precipitation |
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| 569 | clouds(ix,jy,kz,n)=1 ! cloud |
---|
| 570 | endif |
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| 571 | else ! no cloud |
---|
| 572 | if (rain_cloud_above.eq.1) then ! scavenging |
---|
| 573 | if (lsp.ge.convp) then |
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| 574 | clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
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| 575 | else |
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| 576 | clouds(ix,jy,kz,n)=4 ! convp dominated washout |
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| 577 | endif |
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| 578 | endif |
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| 579 | endif |
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| 580 | end do |
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| 581 | end do |
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| 582 | end do |
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| 583 | |
---|
| 584 | !do 102 kz=1,nuvz |
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| 585 | !write(an,'(i02)') kz+10 |
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| 586 | !write(*,*) nuvz,nymin1,nxmin1,'--',an,'--' |
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| 587 | !open(4,file='/nilu_wrk2/sec/cloudtest/cloud'//an,form='formatted') |
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| 588 | !do 101 jy=0,nymin1 |
---|
| 589 | ! write(4,*) (clouds(ix,jy,kz,n),ix=1,nxmin1) |
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| 590 | !101 continue |
---|
| 591 | ! close(4) |
---|
| 592 | !102 continue |
---|
| 593 | |
---|
| 594 | ! open(4,file='/nilu_wrk2/sec/cloudtest/height',form='formatted') |
---|
| 595 | ! do 103 jy=0,nymin1 |
---|
| 596 | ! write (4,*) |
---|
| 597 | !+ (height(kz),kz=1,nuvz) |
---|
| 598 | !103 continue |
---|
| 599 | ! close(4) |
---|
| 600 | |
---|
| 601 | !open(4,file='/nilu_wrk2/sec/cloudtest/p',form='formatted') |
---|
| 602 | ! do 104 jy=0,nymin1 |
---|
| 603 | ! write (4,*) |
---|
| 604 | !+ (r_air*tt(ix,jy,1,n)*rho(ix,jy,1,n),ix=1,nxmin1) |
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| 605 | !104 continue |
---|
| 606 | ! close(4) |
---|
| 607 | end subroutine verttransform |
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