[22] | 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 | ! Petra Seibert, 2011/2012: Fixing some deficiencies in this modification |
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| 52 | ! note that also other subroutines are affected by the fix |
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| 53 | !***************************************************************************** |
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| 54 | ! * |
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| 55 | ! Variables: * |
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| 56 | ! nx,ny,nz field dimensions in x,y and z direction * |
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| 57 | ! clouds(0:nxmax,0:nymax,0:nzmax,2) cloud field for wet deposition * |
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| 58 | ! uu(0:nxmax,0:nymax,nzmax,2) wind components in x-direction [m/s] * |
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| 59 | ! vv(0:nxmax,0:nymax,nzmax,2) wind components in y-direction [m/s] * |
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| 60 | ! ww(0:nxmax,0:nymax,nzmax,2) wind components in z-direction [deltaeta/s]* |
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| 61 | ! tt(0:nxmax,0:nymax,nzmax,2) temperature [K] * |
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| 62 | ! pv(0:nxmax,0:nymax,nzmax,2) potential voriticity (pvu) * |
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| 63 | ! ps(0:nxmax,0:nymax,2) surface pressure [Pa] * |
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| 64 | ! * |
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| 65 | !***************************************************************************** |
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| 66 | |
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| 67 | use par_mod |
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| 68 | use com_mod |
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| 69 | use cmapf_mod, only: cc2gll |
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| 70 | |
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| 71 | implicit none |
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| 72 | |
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| 73 | integer :: ix,jy,kz,iz,n,kmin,kl,klp,ix1,jy1,ixp,jyp,ixm,jym |
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| 74 | integer :: rain_cloud_above,kz_inv !SE |
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| 75 | integer icloudtop !PS |
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| 76 | real :: f_qvsat,pressure |
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| 77 | !real :: rh,lsp,convp |
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| 78 | real :: rh,lsp,convp,prec,rhmin |
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| 79 | real :: uvzlev(nuvzmax),rhoh(nuvzmax),pinmconv(nzmax) |
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| 80 | real :: ew,pint,tv,tvold,pold,dz1,dz2,dz,ui,vi |
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| 81 | real :: xlon,ylat,xlonr,dzdx,dzdy |
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| 82 | real :: dzdx1,dzdx2,dzdy1,dzdy2, precmin |
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| 83 | real :: uuaux,vvaux,uupolaux,vvpolaux,ddpol,ffpol,wdummy |
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| 84 | real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 85 | real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 86 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 87 | real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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| 88 | real :: wzlev(nwzmax),uvwzlev(0:nxmax-1,0:nymax-1,nzmax) |
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| 89 | logical lconvectprec |
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| 90 | real,parameter :: const=r_air/ga |
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| 91 | parameter (precmin = 0.002) ! minimum prec in mm/h for cloud diagnostics |
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| 92 | |
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| 93 | logical :: init = .true. |
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| 94 | |
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| 95 | |
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| 96 | !************************************************************************* |
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| 97 | ! If verttransform is called the first time, initialize heights of the * |
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| 98 | ! z levels in meter. The heights are the heights of model levels, where * |
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| 99 | ! u,v,T and qv are given, and of the interfaces, where w is given. So, * |
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| 100 | ! the vertical resolution in the z system is doubled. As reference point,* |
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| 101 | ! the lower left corner of the grid is used. * |
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| 102 | ! Unlike in the eta system, no difference between heights for u,v and * |
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| 103 | ! heights for w exists. * |
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| 104 | !************************************************************************* |
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| 105 | |
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| 106 | |
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| 107 | ! do 897 kz=1,nuvz |
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| 108 | ! write (*,*) 'akz: ',akz(kz),'bkz',bkz(kz) |
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| 109 | !897 continue |
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| 110 | |
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| 111 | if (init) then |
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| 112 | |
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| 113 | ! Search for a point with high surface pressure (i.e. not above significant topography) |
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| 114 | ! Then, use this point to construct a reference z profile, to be used at all times |
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| 115 | !***************************************************************************** |
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| 116 | |
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| 117 | do jy=0,nymin1 |
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| 118 | do ix=0,nxmin1 |
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| 119 | if (ps(ix,jy,1,n).gt.100000.) then |
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| 120 | ixm=ix |
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| 121 | jym=jy |
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| 122 | goto 3 |
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| 123 | endif |
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| 124 | end do |
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| 125 | end do |
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| 126 | 3 continue |
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| 127 | |
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| 128 | |
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| 129 | tvold=tt2(ixm,jym,1,n)*(1.+0.378*ew(td2(ixm,jym,1,n))/ & |
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| 130 | ps(ixm,jym,1,n)) |
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| 131 | pold=ps(ixm,jym,1,n) |
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| 132 | height(1)=0. |
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| 133 | |
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| 134 | do kz=2,nuvz |
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| 135 | pint=akz(kz)+bkz(kz)*ps(ixm,jym,1,n) |
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| 136 | tv=tth(ixm,jym,kz,n)*(1.+0.608*qvh(ixm,jym,kz,n)) |
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| 137 | |
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| 138 | |
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| 139 | ! NOTE: In FLEXPART versions up to 4.0, the number of model levels was doubled |
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| 140 | ! upon the transformation to z levels. In order to save computer memory, this is |
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| 141 | ! not done anymore in the standard version. However, this option can still be |
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| 142 | ! switched on by replacing the following lines with those below, that are |
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| 143 | ! currently commented out. |
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| 144 | ! Note that two more changes are necessary in this subroutine below. |
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| 145 | ! One change is also necessary in gridcheck.f, and another one in verttransform_nests. |
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| 146 | !***************************************************************************** |
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| 147 | |
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| 148 | if (abs(tv-tvold).gt.0.2) then |
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| 149 | height(kz)= & |
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| 150 | height(kz-1)+const*log(pold/pint)* & |
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| 151 | (tv-tvold)/log(tv/tvold) |
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| 152 | else |
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| 153 | height(kz)=height(kz-1)+ & |
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| 154 | const*log(pold/pint)*tv |
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| 155 | endif |
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| 156 | |
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| 157 | ! Switch on following lines to use doubled vertical resolution |
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| 158 | !************************************************************* |
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| 159 | ! if (abs(tv-tvold).gt.0.2) then |
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| 160 | ! height((kz-1)*2)= |
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| 161 | ! + height(max((kz-2)*2,1))+const*log(pold/pint)* |
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| 162 | ! + (tv-tvold)/log(tv/tvold) |
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| 163 | ! else |
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| 164 | ! height((kz-1)*2)=height(max((kz-2)*2,1))+ |
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| 165 | ! + const*log(pold/pint)*tv |
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| 166 | ! endif |
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| 167 | ! End doubled vertical resolution |
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| 168 | |
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| 169 | tvold=tv |
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| 170 | pold=pint |
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| 171 | end do |
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| 172 | |
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| 173 | |
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| 174 | ! Switch on following lines to use doubled vertical resolution |
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| 175 | !************************************************************* |
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| 176 | ! do 7 kz=3,nz-1,2 |
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| 177 | ! height(kz)=0.5*(height(kz-1)+height(kz+1)) |
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| 178 | ! height(nz)=height(nz-1)+height(nz-1)-height(nz-2) |
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| 179 | ! End doubled vertical resolution |
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| 180 | |
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| 181 | |
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| 182 | ! Determine highest levels that can be within PBL |
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| 183 | !************************************************ |
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| 184 | |
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| 185 | do kz=1,nz |
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| 186 | if (height(kz).gt.hmixmax) then |
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| 187 | nmixz=kz |
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| 188 | goto 9 |
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| 189 | endif |
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| 190 | end do |
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| 191 | 9 continue |
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| 192 | |
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| 193 | ! Do not repeat initialization of the Cartesian z grid |
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| 194 | !***************************************************** |
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| 195 | |
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| 196 | init=.false. |
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| 197 | |
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| 198 | endif |
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| 199 | |
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| 200 | |
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| 201 | ! Loop over the whole grid |
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| 202 | !************************* |
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| 203 | |
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| 204 | do jy=0,nymin1 |
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| 205 | do ix=0,nxmin1 |
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| 206 | tvold=tt2(ix,jy,1,n)*(1.+0.378*ew(td2(ix,jy,1,n))/ & |
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| 207 | ps(ix,jy,1,n)) |
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| 208 | pold=ps(ix,jy,1,n) |
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| 209 | uvzlev(1)=0. |
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| 210 | wzlev(1)=0. |
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| 211 | rhoh(1)=pold/(r_air*tvold) |
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| 212 | |
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| 213 | |
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| 214 | ! Compute heights of eta levels |
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| 215 | !****************************** |
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| 216 | |
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| 217 | do kz=2,nuvz |
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| 218 | pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) |
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| 219 | tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n)) |
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| 220 | rhoh(kz)=pint/(r_air*tv) |
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| 221 | |
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| 222 | if (abs(tv-tvold).gt.0.2) then |
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| 223 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)* & |
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| 224 | (tv-tvold)/log(tv/tvold) |
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| 225 | else |
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| 226 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)*tv |
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| 227 | endif |
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| 228 | |
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| 229 | tvold=tv |
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| 230 | pold=pint |
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| 231 | end do |
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| 232 | |
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| 233 | |
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| 234 | do kz=2,nwz-1 |
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| 235 | wzlev(kz)=(uvzlev(kz+1)+uvzlev(kz))/2. |
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| 236 | end do |
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| 237 | wzlev(nwz)=wzlev(nwz-1)+ & |
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| 238 | uvzlev(nuvz)-uvzlev(nuvz-1) |
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| 239 | |
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| 240 | uvwzlev(ix,jy,1)=0.0 |
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| 241 | do kz=2,nuvz |
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| 242 | uvwzlev(ix,jy,kz)=uvzlev(kz) |
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| 243 | end do |
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| 244 | |
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| 245 | ! Switch on following lines to use doubled vertical resolution |
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| 246 | ! Switch off the three lines above. |
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| 247 | !************************************************************* |
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| 248 | !22 uvwzlev(ix,jy,(kz-1)*2)=uvzlev(kz) |
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| 249 | ! do 23 kz=2,nwz |
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| 250 | !23 uvwzlev(ix,jy,(kz-1)*2+1)=wzlev(kz) |
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| 251 | ! End doubled vertical resolution |
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| 252 | |
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| 253 | ! pinmconv=(h2-h1)/(p2-p1) |
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| 254 | |
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| 255 | pinmconv(1)=(uvwzlev(ix,jy,2)-uvwzlev(ix,jy,1))/ & |
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| 256 | ((aknew(2)+bknew(2)*ps(ix,jy,1,n))- & |
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| 257 | (aknew(1)+bknew(1)*ps(ix,jy,1,n))) |
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| 258 | do kz=2,nz-1 |
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| 259 | pinmconv(kz)=(uvwzlev(ix,jy,kz+1)-uvwzlev(ix,jy,kz-1))/ & |
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| 260 | ((aknew(kz+1)+bknew(kz+1)*ps(ix,jy,1,n))- & |
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| 261 | (aknew(kz-1)+bknew(kz-1)*ps(ix,jy,1,n))) |
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| 262 | end do |
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| 263 | pinmconv(nz)=(uvwzlev(ix,jy,nz)-uvwzlev(ix,jy,nz-1))/ & |
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| 264 | ((aknew(nz)+bknew(nz)*ps(ix,jy,1,n))- & |
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| 265 | (aknew(nz-1)+bknew(nz-1)*ps(ix,jy,1,n))) |
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| 266 | |
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| 267 | ! Levels, where u,v,t and q are given |
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| 268 | !************************************ |
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| 269 | |
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| 270 | uu(ix,jy,1,n)=uuh(ix,jy,1) |
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| 271 | vv(ix,jy,1,n)=vvh(ix,jy,1) |
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| 272 | tt(ix,jy,1,n)=tth(ix,jy,1,n) |
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| 273 | qv(ix,jy,1,n)=qvh(ix,jy,1,n) |
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| 274 | pv(ix,jy,1,n)=pvh(ix,jy,1) |
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| 275 | rho(ix,jy,1,n)=rhoh(1) |
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| 276 | uu(ix,jy,nz,n)=uuh(ix,jy,nuvz) |
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| 277 | vv(ix,jy,nz,n)=vvh(ix,jy,nuvz) |
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| 278 | tt(ix,jy,nz,n)=tth(ix,jy,nuvz,n) |
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| 279 | qv(ix,jy,nz,n)=qvh(ix,jy,nuvz,n) |
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| 280 | pv(ix,jy,nz,n)=pvh(ix,jy,nuvz) |
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| 281 | rho(ix,jy,nz,n)=rhoh(nuvz) |
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| 282 | kmin=2 |
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| 283 | do iz=2,nz-1 |
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| 284 | do kz=kmin,nuvz |
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| 285 | if(height(iz).gt.uvzlev(nuvz)) then |
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| 286 | uu(ix,jy,iz,n)=uu(ix,jy,nz,n) |
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| 287 | vv(ix,jy,iz,n)=vv(ix,jy,nz,n) |
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| 288 | tt(ix,jy,iz,n)=tt(ix,jy,nz,n) |
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| 289 | qv(ix,jy,iz,n)=qv(ix,jy,nz,n) |
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| 290 | pv(ix,jy,iz,n)=pv(ix,jy,nz,n) |
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| 291 | rho(ix,jy,iz,n)=rho(ix,jy,nz,n) |
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| 292 | goto 30 |
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| 293 | endif |
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| 294 | if ((height(iz).gt.uvzlev(kz-1)).and. & |
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| 295 | (height(iz).le.uvzlev(kz))) then |
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| 296 | dz1=height(iz)-uvzlev(kz-1) |
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| 297 | dz2=uvzlev(kz)-height(iz) |
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| 298 | dz=dz1+dz2 |
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| 299 | uu(ix,jy,iz,n)=(uuh(ix,jy,kz-1)*dz2+uuh(ix,jy,kz)*dz1)/dz |
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| 300 | vv(ix,jy,iz,n)=(vvh(ix,jy,kz-1)*dz2+vvh(ix,jy,kz)*dz1)/dz |
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| 301 | tt(ix,jy,iz,n)=(tth(ix,jy,kz-1,n)*dz2 & |
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| 302 | +tth(ix,jy,kz,n)*dz1)/dz |
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| 303 | qv(ix,jy,iz,n)=(qvh(ix,jy,kz-1,n)*dz2 & |
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| 304 | +qvh(ix,jy,kz,n)*dz1)/dz |
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| 305 | pv(ix,jy,iz,n)=(pvh(ix,jy,kz-1)*dz2+pvh(ix,jy,kz)*dz1)/dz |
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| 306 | rho(ix,jy,iz,n)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
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| 307 | kmin=kz |
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| 308 | goto 30 |
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| 309 | endif |
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| 310 | end do |
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| 311 | 30 continue |
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| 312 | end do |
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| 313 | |
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| 314 | |
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| 315 | ! Levels, where w is given |
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| 316 | !************************* |
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| 317 | |
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| 318 | ww(ix,jy,1,n)=wwh(ix,jy,1)*pinmconv(1) |
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| 319 | ww(ix,jy,nz,n)=wwh(ix,jy,nwz)*pinmconv(nz) |
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| 320 | kmin=2 |
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| 321 | do iz=2,nz |
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| 322 | do kz=kmin,nwz |
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| 323 | if ((height(iz).gt.wzlev(kz-1)).and. & |
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| 324 | (height(iz).le.wzlev(kz))) then |
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| 325 | dz1=height(iz)-wzlev(kz-1) |
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| 326 | dz2=wzlev(kz)-height(iz) |
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| 327 | dz=dz1+dz2 |
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| 328 | ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*pinmconv(kz-1)*dz2 & |
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| 329 | +wwh(ix,jy,kz)*pinmconv(kz)*dz1)/dz |
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| 330 | kmin=kz |
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| 331 | goto 40 |
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| 332 | endif |
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| 333 | end do |
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| 334 | 40 continue |
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| 335 | end do |
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| 336 | |
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| 337 | ! Compute density gradients at intermediate levels |
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| 338 | !************************************************* |
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| 339 | |
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| 340 | drhodz(ix,jy,1,n)=(rho(ix,jy,2,n)-rho(ix,jy,1,n))/ & |
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| 341 | (height(2)-height(1)) |
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| 342 | do kz=2,nz-1 |
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| 343 | drhodz(ix,jy,kz,n)=(rho(ix,jy,kz+1,n)-rho(ix,jy,kz-1,n))/ & |
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| 344 | (height(kz+1)-height(kz-1)) |
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| 345 | end do |
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| 346 | drhodz(ix,jy,nz,n)=drhodz(ix,jy,nz-1,n) |
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| 347 | |
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| 348 | end do |
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| 349 | end do |
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| 350 | |
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| 351 | |
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| 352 | !**************************************************************** |
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| 353 | ! Compute slope of eta levels in windward direction and resulting |
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| 354 | ! vertical wind correction |
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| 355 | !**************************************************************** |
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| 356 | |
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| 357 | do jy=1,ny-2 |
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| 358 | do ix=1,nx-2 |
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| 359 | |
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| 360 | kmin=2 |
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| 361 | do iz=2,nz-1 |
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| 362 | |
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| 363 | ui=uu(ix,jy,iz,n)*dxconst/cos((real(jy)*dy+ylat0)*pi180) |
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| 364 | vi=vv(ix,jy,iz,n)*dyconst |
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| 365 | |
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| 366 | do kz=kmin,nz |
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| 367 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
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| 368 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
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| 369 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
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| 370 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
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| 371 | dz=dz1+dz2 |
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| 372 | kl=kz-1 |
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| 373 | klp=kz |
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| 374 | kmin=kz |
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| 375 | goto 47 |
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| 376 | endif |
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| 377 | end do |
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| 378 | |
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| 379 | 47 ix1=ix-1 |
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| 380 | jy1=jy-1 |
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| 381 | ixp=ix+1 |
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| 382 | jyp=jy+1 |
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| 383 | |
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| 384 | dzdx1=(uvwzlev(ixp,jy,kl)-uvwzlev(ix1,jy,kl))/2. |
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| 385 | dzdx2=(uvwzlev(ixp,jy,klp)-uvwzlev(ix1,jy,klp))/2. |
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| 386 | dzdx=(dzdx1*dz2+dzdx2*dz1)/dz |
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| 387 | |
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| 388 | dzdy1=(uvwzlev(ix,jyp,kl)-uvwzlev(ix,jy1,kl))/2. |
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| 389 | dzdy2=(uvwzlev(ix,jyp,klp)-uvwzlev(ix,jy1,klp))/2. |
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| 390 | dzdy=(dzdy1*dz2+dzdy2*dz1)/dz |
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| 391 | |
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| 392 | ww(ix,jy,iz,n)=ww(ix,jy,iz,n)+(dzdx*ui+dzdy*vi) |
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| 393 | |
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| 394 | end do |
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| 395 | |
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| 396 | end do |
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| 397 | end do |
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| 398 | |
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| 399 | |
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| 400 | ! If north pole is in the domain, calculate wind velocities in polar |
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| 401 | ! stereographic coordinates |
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| 402 | !******************************************************************* |
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| 403 | |
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| 404 | if (nglobal) then |
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| 405 | do jy=int(switchnorthg)-2,nymin1 |
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| 406 | ylat=ylat0+real(jy)*dy |
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| 407 | do ix=0,nxmin1 |
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| 408 | xlon=xlon0+real(ix)*dx |
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| 409 | do iz=1,nz |
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| 410 | call cc2gll(northpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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| 411 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
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| 412 | vvpol(ix,jy,iz,n)) |
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| 413 | end do |
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| 414 | end do |
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| 415 | end do |
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| 416 | |
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| 417 | |
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| 418 | do iz=1,nz |
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| 419 | |
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| 420 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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| 421 | ! |
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| 422 | ! AMSnauffer Nov 18 2004 Added check for case vv=0 |
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| 423 | ! |
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| 424 | xlon=xlon0+real(nx/2-1)*dx |
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| 425 | xlonr=xlon*pi/180. |
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| 426 | ffpol=sqrt(uu(nx/2-1,nymin1,iz,n)**2+ & |
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| 427 | vv(nx/2-1,nymin1,iz,n)**2) |
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| 428 | if (vv(nx/2-1,nymin1,iz,n).lt.0.) then |
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| 429 | ddpol=atan(uu(nx/2-1,nymin1,iz,n)/ & |
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| 430 | vv(nx/2-1,nymin1,iz,n))-xlonr |
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| 431 | else if (vv(nx/2-1,nymin1,iz,n).gt.0.) then |
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| 432 | ddpol=pi+atan(uu(nx/2-1,nymin1,iz,n)/ & |
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| 433 | vv(nx/2-1,nymin1,iz,n))-xlonr |
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| 434 | else |
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| 435 | ddpol=pi/2-xlonr |
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| 436 | endif |
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| 437 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
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| 438 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
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| 439 | |
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| 440 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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| 441 | xlon=180.0 |
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| 442 | xlonr=xlon*pi/180. |
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| 443 | ylat=90.0 |
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| 444 | uuaux=-ffpol*sin(xlonr+ddpol) |
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| 445 | vvaux=-ffpol*cos(xlonr+ddpol) |
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| 446 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux, & |
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| 447 | vvpolaux) |
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| 448 | |
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| 449 | jy=nymin1 |
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| 450 | do ix=0,nxmin1 |
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| 451 | uupol(ix,jy,iz,n)=uupolaux |
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| 452 | vvpol(ix,jy,iz,n)=vvpolaux |
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| 453 | end do |
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| 454 | end do |
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| 455 | |
---|
| 456 | |
---|
| 457 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
| 458 | ! ward parallel of latitude |
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| 459 | |
---|
| 460 | do iz=1,nz |
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| 461 | wdummy=0. |
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| 462 | jy=ny-2 |
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| 463 | do ix=0,nxmin1 |
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| 464 | wdummy=wdummy+ww(ix,jy,iz,n) |
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| 465 | end do |
---|
| 466 | wdummy=wdummy/real(nx) |
---|
| 467 | jy=nymin1 |
---|
| 468 | do ix=0,nxmin1 |
---|
| 469 | ww(ix,jy,iz,n)=wdummy |
---|
| 470 | end do |
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| 471 | end do |
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| 472 | |
---|
| 473 | endif |
---|
| 474 | |
---|
| 475 | |
---|
| 476 | ! If south pole is in the domain, calculate wind velocities in polar |
---|
| 477 | ! stereographic coordinates |
---|
| 478 | !******************************************************************* |
---|
| 479 | |
---|
| 480 | if (sglobal) then |
---|
| 481 | do jy=0,int(switchsouthg)+3 |
---|
| 482 | ylat=ylat0+real(jy)*dy |
---|
| 483 | do ix=0,nxmin1 |
---|
| 484 | xlon=xlon0+real(ix)*dx |
---|
| 485 | do iz=1,nz |
---|
| 486 | call cc2gll(southpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
---|
| 487 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
---|
| 488 | vvpol(ix,jy,iz,n)) |
---|
| 489 | end do |
---|
| 490 | end do |
---|
| 491 | end do |
---|
| 492 | |
---|
| 493 | do iz=1,nz |
---|
| 494 | |
---|
| 495 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
---|
| 496 | ! |
---|
| 497 | ! AMSnauffer Nov 18 2004 Added check for case vv=0 |
---|
| 498 | ! |
---|
| 499 | xlon=xlon0+real(nx/2-1)*dx |
---|
| 500 | xlonr=xlon*pi/180. |
---|
| 501 | ffpol=sqrt(uu(nx/2-1,0,iz,n)**2+ & |
---|
| 502 | vv(nx/2-1,0,iz,n)**2) |
---|
| 503 | if (vv(nx/2-1,0,iz,n).lt.0.) then |
---|
| 504 | ddpol=atan(uu(nx/2-1,0,iz,n)/ & |
---|
| 505 | vv(nx/2-1,0,iz,n))+xlonr |
---|
| 506 | else if (vv(nx/2-1,0,iz,n).gt.0.) then |
---|
| 507 | ddpol=pi+atan(uu(nx/2-1,0,iz,n)/ & |
---|
| 508 | vv(nx/2-1,0,iz,n))+xlonr |
---|
| 509 | else |
---|
| 510 | ddpol=pi/2-xlonr |
---|
| 511 | endif |
---|
| 512 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
---|
| 513 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
---|
| 514 | |
---|
| 515 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
---|
| 516 | xlon=180.0 |
---|
| 517 | xlonr=xlon*pi/180. |
---|
| 518 | ylat=-90.0 |
---|
| 519 | uuaux=+ffpol*sin(xlonr-ddpol) |
---|
| 520 | vvaux=-ffpol*cos(xlonr-ddpol) |
---|
| 521 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux, & |
---|
| 522 | vvpolaux) |
---|
| 523 | |
---|
| 524 | jy=0 |
---|
| 525 | do ix=0,nxmin1 |
---|
| 526 | uupol(ix,jy,iz,n)=uupolaux |
---|
| 527 | vvpol(ix,jy,iz,n)=vvpolaux |
---|
| 528 | end do |
---|
| 529 | end do |
---|
| 530 | |
---|
| 531 | |
---|
| 532 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
| 533 | ! ward parallel of latitude |
---|
| 534 | |
---|
| 535 | do iz=1,nz |
---|
| 536 | wdummy=0. |
---|
| 537 | jy=1 |
---|
| 538 | do ix=0,nxmin1 |
---|
| 539 | wdummy=wdummy+ww(ix,jy,iz,n) |
---|
| 540 | end do |
---|
| 541 | wdummy=wdummy/real(nx) |
---|
| 542 | jy=0 |
---|
| 543 | do ix=0,nxmin1 |
---|
| 544 | ww(ix,jy,iz,n)=wdummy |
---|
| 545 | end do |
---|
| 546 | end do |
---|
| 547 | endif |
---|
| 548 | |
---|
| 549 | |
---|
| 550 | !write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz |
---|
| 551 | ! create a cloud and rainout/washout field, clouds occur where rh>80% |
---|
| 552 | ! total cloudheight is stored at level 0 |
---|
| 553 | |
---|
| 554 | |
---|
| 555 | |
---|
| 556 | do jy=0,nymin1 |
---|
| 557 | do ix=0,nxmin1 |
---|
| 558 | |
---|
| 559 | |
---|
| 560 | |
---|
| 561 | ! rain_cloud_above=0 |
---|
| 562 | ! lsp=lsprec(ix,jy,1,n) |
---|
| 563 | ! convp=convprec(ix,jy,1,n) |
---|
| 564 | ! cloudsh(ix,jy,n)=0 |
---|
| 565 | ! do kz_inv=1,nz-1 |
---|
| 566 | ! kz=nz-kz_inv+1 |
---|
| 567 | ! pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
| 568 | ! rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
| 569 | ! clouds(ix,jy,kz,n)=0 |
---|
| 570 | ! if (rh.gt.0.8) then ! in cloud |
---|
| 571 | ! if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
---|
| 572 | ! rain_cloud_above=1 |
---|
| 573 | ! cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+ & |
---|
| 574 | ! height(kz)-height(kz-1) |
---|
| 575 | ! if (lsp.ge.convp) then |
---|
| 576 | ! clouds(ix,jy,kz,n)=3 ! lsp dominated rainout |
---|
| 577 | ! else |
---|
| 578 | ! clouds(ix,jy,kz,n)=2 ! convp dominated rainout |
---|
| 579 | ! endif |
---|
| 580 | ! else ! no precipitation |
---|
| 581 | ! clouds(ix,jy,kz,n)=1 ! cloud |
---|
| 582 | ! endif |
---|
| 583 | ! else ! no cloud |
---|
| 584 | ! if (rain_cloud_above.eq.1) then ! scavenging |
---|
| 585 | ! if (lsp.ge.convp) then |
---|
| 586 | ! clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
---|
| 587 | ! else |
---|
| 588 | ! clouds(ix,jy,kz,n)=4 ! convp dominated washout |
---|
| 589 | ! endif |
---|
| 590 | ! endif |
---|
| 591 | ! endif |
---|
| 592 | ! end do |
---|
| 593 | |
---|
| 594 | |
---|
| 595 | ! PS 3012 |
---|
| 596 | |
---|
| 597 | lsp=lsprec(ix,jy,1,n) |
---|
| 598 | convp=convprec(ix,jy,1,n) |
---|
| 599 | prec=lsp+convp |
---|
| 600 | if (lsp.gt.convp) then ! prectype='lsp' |
---|
| 601 | lconvectprec = .false. |
---|
| 602 | else ! prectype='cp ' |
---|
| 603 | lconvectprec = .true. |
---|
| 604 | endif |
---|
| 605 | rhmin = 0.90 ! standard condition for presence of clouds |
---|
| 606 | !PS note that original by Sabine Eckhart was 80% |
---|
| 607 | !PS however, for T<-20 C we consider saturation over ice |
---|
| 608 | !PS so I think 90% should be enough |
---|
| 609 | icloudbot(ix,jy,n)=icmv |
---|
| 610 | icloudtop=icmv ! this is just a local variable |
---|
| 611 | 98 do kz=1,nz |
---|
| 612 | pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
| 613 | rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
| 614 | !ps if (prec.gt.0.01) print*,'relhum',prec,kz,rh,height(kz) |
---|
| 615 | if (rh .gt. rhmin) then |
---|
| 616 | if (icloudbot(ix,jy,n) .eq. icmv) then |
---|
| 617 | icloudbot(ix,jy,n)=nint(height(kz)) |
---|
| 618 | endif |
---|
| 619 | icloudtop=nint(height(kz)) ! use int to save memory |
---|
| 620 | endif |
---|
| 621 | enddo |
---|
| 622 | |
---|
| 623 | !PS try to get a cloud thicker than 50 m |
---|
| 624 | !PS if there is at least .01 mm/h - changed to 0.002 and put into |
---|
| 625 | !PS parameter precpmin |
---|
| 626 | if ((icloudbot(ix,jy,n) .eq. icmv .or. & |
---|
| 627 | icloudtop-icloudbot(ix,jy,n) .lt. 50) .and. & |
---|
| 628 | prec .gt. precmin) then |
---|
| 629 | rhmin = rhmin - 0.05 |
---|
| 630 | if (rhmin .ge. 0.30) goto 98 ! give up for <= 25% rel.hum. |
---|
| 631 | endif |
---|
| 632 | !PS implement a rough fix for badly represented convection |
---|
| 633 | !PS is based on looking at a limited set of comparison data |
---|
| 634 | if (lconvectprec .and. icloudtop .lt. 6000 .and. & |
---|
| 635 | prec .gt. precmin) then |
---|
| 636 | |
---|
| 637 | if (convp .lt. 0.1) then |
---|
| 638 | icloudbot(ix,jy,n) = 500 |
---|
| 639 | icloudtop = 8000 |
---|
| 640 | else |
---|
| 641 | icloudbot(ix,jy,n) = 0 |
---|
| 642 | icloudtop = 10000 |
---|
| 643 | endif |
---|
| 644 | endif |
---|
| 645 | if (icloudtop .ne. icmv) then |
---|
| 646 | icloudthck(ix,jy,n) = icloudtop-icloudbot(ix,jy,n) |
---|
| 647 | else |
---|
| 648 | icloudthck(ix,jy,n) = icmv |
---|
| 649 | endif |
---|
| 650 | !PS get rid of too thin clouds |
---|
| 651 | if (icloudthck(ix,jy,n) .lt. 50) then |
---|
| 652 | icloudbot(ix,jy,n)=icmv |
---|
| 653 | icloudthck(ix,jy,n)=icmv |
---|
| 654 | endif |
---|
| 655 | |
---|
| 656 | |
---|
| 657 | end do |
---|
| 658 | end do |
---|
| 659 | |
---|
| 660 | !do 102 kz=1,nuvz |
---|
| 661 | !write(an,'(i02)') kz+10 |
---|
| 662 | !write(*,*) nuvz,nymin1,nxmin1,'--',an,'--' |
---|
| 663 | !open(4,file='/nilu_wrk2/sec/cloudtest/cloud'//an,form='formatted') |
---|
| 664 | !do 101 jy=0,nymin1 |
---|
| 665 | ! write(4,*) (clouds(ix,jy,kz,n),ix=1,nxmin1) |
---|
| 666 | !101 continue |
---|
| 667 | ! close(4) |
---|
| 668 | !102 continue |
---|
| 669 | |
---|
| 670 | ! open(4,file='/nilu_wrk2/sec/cloudtest/height',form='formatted') |
---|
| 671 | ! do 103 jy=0,nymin1 |
---|
| 672 | ! write (4,*) |
---|
| 673 | !+ (height(kz),kz=1,nuvz) |
---|
| 674 | !103 continue |
---|
| 675 | ! close(4) |
---|
| 676 | |
---|
| 677 | !open(4,file='/nilu_wrk2/sec/cloudtest/p',form='formatted') |
---|
| 678 | ! do 104 jy=0,nymin1 |
---|
| 679 | ! write (4,*) |
---|
| 680 | !+ (r_air*tt(ix,jy,1,n)*rho(ix,jy,1,n),ix=1,nxmin1) |
---|
| 681 | !104 continue |
---|
| 682 | ! close(4) |
---|
| 683 | |
---|
| 684 | |
---|
| 685 | end subroutine verttransform |
---|