[e200b7a] | 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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[6ecb30a] | 22 | subroutine verttransform_gfs(n,uuh,vvh,wwh,pvh) |
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[f251e57] | 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 | ! CHANGE 17/11/2005 Caroline Forster, NCEP GFS version * |
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| 41 | ! * |
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| 42 | ! - Vertical levels for u, v and w are put together * |
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| 43 | ! - Slope correction for vertical velocity: Modification of calculation * |
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| 44 | ! procedure * |
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| 45 | ! * |
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| 46 | !***************************************************************************** |
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| 47 | ! Changes, Bernd C. Krueger, Feb. 2001: |
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| 48 | ! Variables tth and qvh (on eta coordinates) from common block |
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| 49 | ! |
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| 50 | ! Unified ECMWF and GFS builds |
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| 51 | ! Marian Harustak, 12.5.2017 |
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| 52 | ! - Renamed from verttransform to verttransform_ecmwf |
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| 53 | ! |
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| 54 | ! undocumented modifications by NILU for v10 * |
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| 55 | ! * |
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| 56 | ! Petra Seibert, 2018-06-13: * |
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| 57 | ! - fix bug of ticket:140 (find reference position for vertical grid) * |
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| 58 | ! - put back SAVE attribute for INIT, just to be safe * |
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| 59 | ! - minor changes, most of them just cosmetics * |
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| 60 | ! for details see changelog.txt * |
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| 61 | ! * |
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| 62 | !***************************************************************************** |
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| 63 | ! * |
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| 64 | ! Variables: * |
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| 65 | ! nx,ny,nz field dimensions in x,y and z direction * |
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| 66 | ! uu(0:nxmax,0:nymax,nzmax,2) wind components in x-direction [m/s] * |
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| 67 | ! vv(0:nxmax,0:nymax,nzmax,2) wind components in y-direction [m/s] * |
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| 68 | ! ww(0:nxmax,0:nymax,nzmax,2) wind components in z-direction [deltaeta/s]* |
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| 69 | ! tt(0:nxmax,0:nymax,nzmax,2) temperature [K] * |
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| 70 | ! pv(0:nxmax,0:nymax,nzmax,2) potential voriticity (pvu) * |
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| 71 | ! ps(0:nxmax,0:nymax,2) surface pressure [Pa] * |
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| 72 | ! clouds(0:nxmax,0:nymax,0:nzmax,2) cloud field for wet deposition * |
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| 73 | ! * |
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| 74 | !***************************************************************************** |
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[e200b7a] | 75 | |
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| 76 | use par_mod |
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| 77 | use com_mod |
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| 78 | use cmapf_mod |
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| 79 | |
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| 80 | implicit none |
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| 81 | |
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[f251e57] | 82 | integer :: ix,jy,kz,iz,n,kmin,kl,klp,ix1,jy1,ixp,jyp |
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[e200b7a] | 83 | integer :: rain_cloud_above,kz_inv |
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| 84 | real :: f_qvsat,pressure |
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| 85 | real :: rh,lsp,convp |
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[4fbe7a5] | 86 | real :: rhoh(nuvzmax),pinmconv(nzmax) |
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[e200b7a] | 87 | real :: ew,pint,tv,tvold,pold,dz1,dz2,dz,ui,vi |
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[f251e57] | 88 | |
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| 89 | !> for reference profile (PS) |
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| 90 | real :: tvoldref, poldref, pintref, psmean, psstd |
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| 91 | integer :: ixyref(2), ixref,jyref |
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| 92 | integer, parameter :: ioldref = 1 ! PS 2018-06-13: set to 0 if you |
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| 93 | !! want old method of searching reference location for the vertical grid |
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| 94 | !! 1 for new method (options for other methods 2,... in the future) |
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| 95 | |
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[e200b7a] | 96 | real :: xlon,ylat,xlonr,dzdx,dzdy |
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[4fbe7a5] | 97 | real :: dzdx1,dzdx2,dzdy1,dzdy2,cosf |
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[e200b7a] | 98 | real :: uuaux,vvaux,uupolaux,vvpolaux,ddpol,ffpol,wdummy |
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| 99 | real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 100 | real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 101 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 102 | real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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| 103 | real :: wzlev(nwzmax),uvwzlev(0:nxmax-1,0:nymax-1,nzmax) |
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| 104 | real,parameter :: const=r_air/ga |
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| 105 | |
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[f251e57] | 106 | logical, save :: init = .true. ! PS 2018-06-13: add back save attribute |
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| 107 | |
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| 108 | !> GFS version |
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[e200b7a] | 109 | integer :: llev, i |
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| 110 | |
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| 111 | |
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| 112 | |
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[f251e57] | 113 | !************************************************************************* |
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| 114 | ! If verttransform is called the first time, initialize heights of the * |
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| 115 | ! z levels in meter. The heights are the heights of model levels, where * |
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| 116 | ! u,v,T and qv are given. * |
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| 117 | !************************************************************************* |
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[e200b7a] | 118 | |
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| 119 | if (init) then |
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| 120 | |
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[f251e57] | 121 | ! Search for a point with high surface pressure (i.e. not above significant topography) |
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| 122 | ! Then, use this point to construct a reference z profile, to be used at all times |
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| 123 | !***************************************************************************** |
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[e200b7a] | 124 | |
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[f251e57] | 125 | if (ioldref .eq. 0) then ! old reference grid point |
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| 126 | do jy=0,nymin1 |
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| 127 | do ix=0,nxmin1 |
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| 128 | if (ps(ix,jy,1,n).gt.1000.e2) then |
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| 129 | ixref=ix |
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| 130 | jyref=jy |
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[e200b7a] | 131 | goto 3 |
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| 132 | endif |
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| 133 | end do |
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| 134 | end do |
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| 135 | 3 continue |
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[f251e57] | 136 | ! print*,'oldheights at' ,ixref,jyref,ps(ixref,jyref,1,n) |
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| 137 | else ! new reference grid point |
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| 138 | ! PS: the old version fails if the pressure is <=1000 hPa in the whole |
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| 139 | ! domain. Let us find a good replacement, not just a quick fix. |
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| 140 | ! Search point near to mean pressure after excluding mountains |
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| 141 | |
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| 142 | psmean = sum( ps(:,:,1,n) ) / (nx*ny) |
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| 143 | ! print*,'height: fg psmean',psmean |
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| 144 | psstd = sqrt(sum( (ps(:,:,1,n) - psmean)**2 ) / (nx*ny)) |
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| 145 | |
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| 146 | !> new psmean using only points within $\plusminus\sigma$ |
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| 147 | ! psmean = sum( ps(:,:,1,n), abs(ps(:,:,1,n)-psmean) < psstd ) / & |
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| 148 | ! count(abs(ps(:,:,1,n)-psmean) < psstd) |
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| 149 | |
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| 150 | !> new psmean using only points with $p\gt \overbar{p}+\sigma_p$ |
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| 151 | !> (reject mountains, accept valleys) |
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| 152 | psmean = sum( ps(:,:,1,n), ps(:,:,1,n) > psmean - psstd ) / & |
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| 153 | count(ps(:,:,1,n) > psmean - psstd) |
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| 154 | ! print*,'height: std, new psmean',psstd,psmean |
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| 155 | ixyref = minloc( abs( ps(:,:,1,n) - psmean ) ) |
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| 156 | ixref = ixyref(1) |
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| 157 | jyref = ixyref(2) |
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| 158 | ! print*,'newheights at' ,ixref,jyref,ps(ixref,jyref,1,n) |
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| 159 | endif |
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| 160 | |
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| 161 | tvoldref=tt2(ixref,jyref,1,n)* & |
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| 162 | ( 1. + 0.378*ew(td2(ixref,jyref,1,n) ) / ps(ixref,jyref,1,n)) |
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| 163 | poldref=ps(ixref,jyref,1,n) |
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[e200b7a] | 164 | height(1)=0. |
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[f251e57] | 165 | kz=1 |
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| 166 | ! print*,'height=',kz,height(kz),tvoldref,poldref |
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[e200b7a] | 167 | |
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| 168 | do kz=2,nuvz |
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[f251e57] | 169 | |
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| 170 | pintref = akz(kz) |
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| 171 | ! Note that for GFS data, the akz variable contains the input level |
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| 172 | ! pressure values. bkz is zero (I removed all terms with bkz that |
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| 173 | ! were erroneously copied from verttransform_ecmwf). [PS, June 2018] |
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| 174 | |
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| 175 | tv = tth(ixref,jyref,kz,n)*(1.+0.608*qvh(ixref,jyref,kz,n)) |
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| 176 | |
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| 177 | if (abs(tv-tvoldref) .gt. 0.2) then |
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| 178 | height(kz)=height(kz-1) + & |
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| 179 | const * log(poldref/pintref) * (tv-tvoldref) / log(tv/tvoldref) |
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[e200b7a] | 180 | else |
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[f251e57] | 181 | height(kz) = height(kz-1) + const*log(poldref/pintref)*tv |
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[e200b7a] | 182 | endif |
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| 183 | |
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[f251e57] | 184 | tvoldref=tv |
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| 185 | poldref=pintref |
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| 186 | ! print*,'height=',kz,height(kz),tvoldref,poldref |
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[e200b7a] | 187 | end do |
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| 188 | |
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| 189 | |
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[f251e57] | 190 | ! Determine highest levels that can be within PBL |
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| 191 | !************************************************ |
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[e200b7a] | 192 | |
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| 193 | do kz=1,nz |
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| 194 | if (height(kz).gt.hmixmax) then |
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| 195 | nmixz=kz |
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| 196 | goto 9 |
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| 197 | endif |
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| 198 | end do |
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| 199 | 9 continue |
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| 200 | |
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[f251e57] | 201 | ! Do not repeat initialization of the Cartesian z grid |
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| 202 | !***************************************************** |
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[e200b7a] | 203 | |
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| 204 | init=.false. |
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| 205 | |
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[f251e57] | 206 | endif ! init block (vertical grid construction) |
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[e200b7a] | 207 | |
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| 208 | |
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[f251e57] | 209 | ! Loop over the whole grid |
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| 210 | !************************* |
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[e200b7a] | 211 | |
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| 212 | do jy=0,nymin1 |
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| 213 | do ix=0,nxmin1 |
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| 214 | |
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[f251e57] | 215 | ! NCEP version: find first level above ground |
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[e200b7a] | 216 | llev = 0 |
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| 217 | do i=1,nuvz |
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[4fbe7a5] | 218 | if (ps(ix,jy,1,n).lt.akz(i)) llev=i |
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[e200b7a] | 219 | end do |
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| 220 | llev = llev+1 |
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| 221 | if (llev.gt.nuvz-2) llev = nuvz-2 |
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[f251e57] | 222 | ! if (llev.eq.nuvz-2) write(*,*) 'verttransform |
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| 223 | ! +WARNING: LLEV eq NUZV-2' |
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| 224 | ! NCEP version |
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[e200b7a] | 225 | |
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| 226 | |
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[f251e57] | 227 | ! compute height of pressure levels above ground |
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| 228 | !*********************************************** |
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[e200b7a] | 229 | |
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| 230 | tvold=tth(ix,jy,llev,n)*(1.+0.608*qvh(ix,jy,llev,n)) |
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| 231 | pold=akz(llev) |
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| 232 | wzlev(llev)=0. |
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| 233 | uvwzlev(ix,jy,llev)=0. |
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| 234 | rhoh(llev)=pold/(r_air*tvold) |
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| 235 | |
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| 236 | do kz=llev+1,nuvz |
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| 237 | pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) |
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| 238 | tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n)) |
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| 239 | rhoh(kz)=pint/(r_air*tv) |
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| 240 | |
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| 241 | if (abs(tv-tvold).gt.0.2) then |
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[4fbe7a5] | 242 | uvwzlev(ix,jy,kz)=uvwzlev(ix,jy,kz-1)+const*log(pold/pint)* & |
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| 243 | (tv-tvold)/log(tv/tvold) |
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[e200b7a] | 244 | else |
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[4fbe7a5] | 245 | uvwzlev(ix,jy,kz)=uvwzlev(ix,jy,kz-1)+const*log(pold/pint)*tv |
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[e200b7a] | 246 | endif |
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[4fbe7a5] | 247 | wzlev(kz)=uvwzlev(ix,jy,kz) |
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[e200b7a] | 248 | |
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| 249 | tvold=tv |
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| 250 | pold=pint |
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| 251 | end do |
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| 252 | |
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[f251e57] | 253 | ! pinmconv=(h2-h1)/(p2-p1) |
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[e200b7a] | 254 | |
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| 255 | pinmconv(llev)=(uvwzlev(ix,jy,llev+1)-uvwzlev(ix,jy,llev))/ & |
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| 256 | ((aknew(llev+1)+bknew(llev+1)*ps(ix,jy,1,n))- & |
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| 257 | (aknew(llev)+bknew(llev)*ps(ix,jy,1,n))) |
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| 258 | do kz=llev+1,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 | |
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[f251e57] | 268 | ! Levels, where u,v,t and q are given |
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| 269 | !************************************ |
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[e200b7a] | 270 | |
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| 271 | uu(ix,jy,1,n)=uuh(ix,jy,llev) |
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| 272 | vv(ix,jy,1,n)=vvh(ix,jy,llev) |
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| 273 | tt(ix,jy,1,n)=tth(ix,jy,llev,n) |
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| 274 | qv(ix,jy,1,n)=qvh(ix,jy,llev,n) |
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| 275 | pv(ix,jy,1,n)=pvh(ix,jy,llev) |
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| 276 | rho(ix,jy,1,n)=rhoh(llev) |
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| 277 | pplev(ix,jy,1,n)=akz(llev) |
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| 278 | uu(ix,jy,nz,n)=uuh(ix,jy,nuvz) |
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| 279 | vv(ix,jy,nz,n)=vvh(ix,jy,nuvz) |
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| 280 | tt(ix,jy,nz,n)=tth(ix,jy,nuvz,n) |
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| 281 | qv(ix,jy,nz,n)=qvh(ix,jy,nuvz,n) |
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| 282 | pv(ix,jy,nz,n)=pvh(ix,jy,nuvz) |
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| 283 | rho(ix,jy,nz,n)=rhoh(nuvz) |
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| 284 | pplev(ix,jy,nz,n)=akz(nuvz) |
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| 285 | kmin=llev+1 |
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| 286 | do iz=2,nz-1 |
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| 287 | do kz=kmin,nuvz |
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[4fbe7a5] | 288 | if(height(iz).gt.uvwzlev(ix,jy,nuvz)) then |
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[e200b7a] | 289 | uu(ix,jy,iz,n)=uu(ix,jy,nz,n) |
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| 290 | vv(ix,jy,iz,n)=vv(ix,jy,nz,n) |
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| 291 | tt(ix,jy,iz,n)=tt(ix,jy,nz,n) |
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| 292 | qv(ix,jy,iz,n)=qv(ix,jy,nz,n) |
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| 293 | pv(ix,jy,iz,n)=pv(ix,jy,nz,n) |
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| 294 | rho(ix,jy,iz,n)=rho(ix,jy,nz,n) |
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| 295 | pplev(ix,jy,iz,n)=pplev(ix,jy,nz,n) |
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| 296 | goto 30 |
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| 297 | endif |
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[4fbe7a5] | 298 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
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| 299 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
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| 300 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
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| 301 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
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| 302 | dz=dz1+dz2 |
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| 303 | uu(ix,jy,iz,n)=(uuh(ix,jy,kz-1)*dz2+uuh(ix,jy,kz)*dz1)/dz |
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| 304 | vv(ix,jy,iz,n)=(vvh(ix,jy,kz-1)*dz2+vvh(ix,jy,kz)*dz1)/dz |
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| 305 | tt(ix,jy,iz,n)=(tth(ix,jy,kz-1,n)*dz2 & |
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| 306 | +tth(ix,jy,kz,n)*dz1)/dz |
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| 307 | qv(ix,jy,iz,n)=(qvh(ix,jy,kz-1,n)*dz2 & |
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| 308 | +qvh(ix,jy,kz,n)*dz1)/dz |
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| 309 | pv(ix,jy,iz,n)=(pvh(ix,jy,kz-1)*dz2+pvh(ix,jy,kz)*dz1)/dz |
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| 310 | rho(ix,jy,iz,n)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
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| 311 | pplev(ix,jy,iz,n)=(akz(kz-1)*dz2+akz(kz)*dz1)/dz |
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[e200b7a] | 312 | endif |
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| 313 | end do |
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| 314 | 30 continue |
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| 315 | end do |
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| 316 | |
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| 317 | |
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[f251e57] | 318 | ! Levels, where w is given |
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| 319 | !************************* |
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[e200b7a] | 320 | |
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| 321 | ww(ix,jy,1,n)=wwh(ix,jy,llev)*pinmconv(llev) |
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| 322 | ww(ix,jy,nz,n)=wwh(ix,jy,nwz)*pinmconv(nz) |
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| 323 | kmin=llev+1 |
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| 324 | do iz=2,nz |
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| 325 | do kz=kmin,nwz |
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| 326 | if ((height(iz).gt.wzlev(kz-1)).and. & |
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[4fbe7a5] | 327 | (height(iz).le.wzlev(kz))) then |
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| 328 | dz1=height(iz)-wzlev(kz-1) |
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| 329 | dz2=wzlev(kz)-height(iz) |
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| 330 | dz=dz1+dz2 |
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| 331 | ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*pinmconv(kz-1)*dz2 & |
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| 332 | +wwh(ix,jy,kz)*pinmconv(kz)*dz1)/dz |
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[e200b7a] | 333 | endif |
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| 334 | end do |
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| 335 | end do |
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| 336 | |
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| 337 | |
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[f251e57] | 338 | ! Compute density gradients at intermediate levels |
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| 339 | !************************************************* |
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[e200b7a] | 340 | |
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| 341 | drhodz(ix,jy,1,n)=(rho(ix,jy,2,n)-rho(ix,jy,1,n))/ & |
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| 342 | (height(2)-height(1)) |
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| 343 | do kz=2,nz-1 |
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| 344 | drhodz(ix,jy,kz,n)=(rho(ix,jy,kz+1,n)-rho(ix,jy,kz-1,n))/ & |
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[4fbe7a5] | 345 | (height(kz+1)-height(kz-1)) |
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[e200b7a] | 346 | end do |
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| 347 | drhodz(ix,jy,nz,n)=drhodz(ix,jy,nz-1,n) |
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| 348 | |
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| 349 | end do |
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| 350 | end do |
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| 351 | |
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| 352 | |
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[f251e57] | 353 | !**************************************************************** |
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| 354 | ! Compute slope of eta levels in windward direction and resulting |
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| 355 | ! vertical wind correction |
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| 356 | !**************************************************************** |
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[e200b7a] | 357 | |
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| 358 | do jy=1,ny-2 |
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[4fbe7a5] | 359 | cosf=cos((real(jy)*dy+ylat0)*pi180) |
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[e200b7a] | 360 | do ix=1,nx-2 |
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| 361 | |
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[f251e57] | 362 | ! NCEP version: find first level above ground |
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[e200b7a] | 363 | llev = 0 |
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| 364 | do i=1,nuvz |
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| 365 | if (ps(ix,jy,1,n).lt.akz(i)) llev=i |
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| 366 | end do |
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| 367 | llev = llev+1 |
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| 368 | if (llev.gt.nuvz-2) llev = nuvz-2 |
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[f251e57] | 369 | ! if (llev.eq.nuvz-2) write(*,*) 'verttransform |
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| 370 | ! +WARNING: LLEV eq NUZV-2' |
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| 371 | ! NCEP version |
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[e200b7a] | 372 | |
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| 373 | kmin=llev+1 |
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| 374 | do iz=2,nz-1 |
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| 375 | |
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[4fbe7a5] | 376 | ui=uu(ix,jy,iz,n)*dxconst/cosf |
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[e200b7a] | 377 | vi=vv(ix,jy,iz,n)*dyconst |
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| 378 | |
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| 379 | do kz=kmin,nz |
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| 380 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
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[4fbe7a5] | 381 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
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[e200b7a] | 382 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
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| 383 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
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| 384 | dz=dz1+dz2 |
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| 385 | kl=kz-1 |
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| 386 | klp=kz |
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| 387 | goto 47 |
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| 388 | endif |
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| 389 | end do |
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| 390 | |
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| 391 | 47 ix1=ix-1 |
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| 392 | jy1=jy-1 |
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| 393 | ixp=ix+1 |
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| 394 | jyp=jy+1 |
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| 395 | |
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| 396 | dzdx1=(uvwzlev(ixp,jy,kl)-uvwzlev(ix1,jy,kl))/2. |
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| 397 | dzdx2=(uvwzlev(ixp,jy,klp)-uvwzlev(ix1,jy,klp))/2. |
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| 398 | dzdx=(dzdx1*dz2+dzdx2*dz1)/dz |
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| 399 | |
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| 400 | dzdy1=(uvwzlev(ix,jyp,kl)-uvwzlev(ix,jy1,kl))/2. |
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| 401 | dzdy2=(uvwzlev(ix,jyp,klp)-uvwzlev(ix,jy1,klp))/2. |
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| 402 | dzdy=(dzdy1*dz2+dzdy2*dz1)/dz |
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| 403 | |
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| 404 | ww(ix,jy,iz,n)=ww(ix,jy,iz,n)+(dzdx*ui+dzdy*vi) |
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| 405 | |
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| 406 | end do |
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| 407 | |
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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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[f251e57] | 412 | ! If north pole is in the domain, calculate wind velocities in polar |
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| 413 | ! stereographic coordinates |
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| 414 | !******************************************************************* |
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[e200b7a] | 415 | |
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| 416 | if (nglobal) then |
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| 417 | do jy=int(switchnorthg)-2,nymin1 |
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| 418 | ylat=ylat0+real(jy)*dy |
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| 419 | do ix=0,nxmin1 |
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| 420 | xlon=xlon0+real(ix)*dx |
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| 421 | do iz=1,nz |
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| 422 | call cc2gll(northpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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| 423 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
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| 424 | vvpol(ix,jy,iz,n)) |
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| 425 | end do |
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| 426 | end do |
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| 427 | end do |
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| 428 | |
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| 429 | |
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| 430 | do iz=1,nz |
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| 431 | |
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[f251e57] | 432 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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[e200b7a] | 433 | xlon=xlon0+real(nx/2-1)*dx |
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| 434 | xlonr=xlon*pi/180. |
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[4fbe7a5] | 435 | ffpol=sqrt(uu(nx/2-1,nymin1,iz,n)**2+vv(nx/2-1,nymin1,iz,n)**2) |
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| 436 | if (vv(nx/2-1,nymin1,iz,n).lt.0.) then |
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| 437 | ddpol=atan(uu(nx/2-1,nymin1,iz,n)/vv(nx/2-1,nymin1,iz,n))-xlonr |
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[e200b7a] | 438 | elseif (vv(nx/2-1,nymin1,iz,n).gt.0.) then |
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| 439 | ddpol=pi+atan(uu(nx/2-1,nymin1,iz,n)/ & |
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[4fbe7a5] | 440 | vv(nx/2-1,nymin1,iz,n))-xlonr |
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[e200b7a] | 441 | else |
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| 442 | ddpol=pi/2-xlonr |
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| 443 | endif |
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| 444 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
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| 445 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
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| 446 | |
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[f251e57] | 447 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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[e200b7a] | 448 | xlon=180.0 |
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| 449 | xlonr=xlon*pi/180. |
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| 450 | ylat=90.0 |
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| 451 | uuaux=-ffpol*sin(xlonr+ddpol) |
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| 452 | vvaux=-ffpol*cos(xlonr+ddpol) |
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[4fbe7a5] | 453 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux,vvpolaux) |
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[e200b7a] | 454 | jy=nymin1 |
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| 455 | do ix=0,nxmin1 |
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| 456 | uupol(ix,jy,iz,n)=uupolaux |
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| 457 | vvpol(ix,jy,iz,n)=vvpolaux |
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| 458 | end do |
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| 459 | end do |
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| 460 | |
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| 461 | |
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[f251e57] | 462 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
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| 463 | ! ward parallel of latitude |
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[e200b7a] | 464 | |
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[4fbe7a5] | 465 | do iz=1,nz |
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[e200b7a] | 466 | wdummy=0. |
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| 467 | jy=ny-2 |
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| 468 | do ix=0,nxmin1 |
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| 469 | wdummy=wdummy+ww(ix,jy,iz,n) |
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| 470 | end do |
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| 471 | wdummy=wdummy/real(nx) |
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| 472 | jy=nymin1 |
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| 473 | do ix=0,nxmin1 |
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| 474 | ww(ix,jy,iz,n)=wdummy |
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| 475 | end do |
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[4fbe7a5] | 476 | end do |
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[e200b7a] | 477 | |
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| 478 | endif |
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| 479 | |
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| 480 | |
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[f251e57] | 481 | ! If south pole is in the domain, calculate wind velocities in polar |
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| 482 | ! stereographic coordinates |
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| 483 | !******************************************************************* |
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[e200b7a] | 484 | |
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| 485 | if (sglobal) then |
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| 486 | do jy=0,int(switchsouthg)+3 |
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| 487 | ylat=ylat0+real(jy)*dy |
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| 488 | do ix=0,nxmin1 |
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| 489 | xlon=xlon0+real(ix)*dx |
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| 490 | do iz=1,nz |
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| 491 | call cc2gll(southpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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[4fbe7a5] | 492 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n),vvpol(ix,jy,iz,n)) |
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[e200b7a] | 493 | end do |
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| 494 | end do |
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| 495 | end do |
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| 496 | |
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| 497 | do iz=1,nz |
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| 498 | |
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[f251e57] | 499 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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[e200b7a] | 500 | xlon=xlon0+real(nx/2-1)*dx |
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| 501 | xlonr=xlon*pi/180. |
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[4fbe7a5] | 502 | ffpol=sqrt(uu(nx/2-1,0,iz,n)**2+vv(nx/2-1,0,iz,n)**2) |
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[e200b7a] | 503 | if(vv(nx/2-1,0,iz,n).lt.0.) then |
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[4fbe7a5] | 504 | ddpol=atan(uu(nx/2-1,0,iz,n)/vv(nx/2-1,0,iz,n))+xlonr |
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[e200b7a] | 505 | elseif (vv(nx/2-1,0,iz,n).gt.0.) then |
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[4fbe7a5] | 506 | ddpol=pi+atan(uu(nx/2-1,0,iz,n)/vv(nx/2-1,0,iz,n))-xlonr |
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[e200b7a] | 507 | else |
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| 508 | ddpol=pi/2-xlonr |
---|
| 509 | endif |
---|
| 510 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
---|
| 511 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
---|
| 512 | |
---|
[f251e57] | 513 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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[e200b7a] | 514 | xlon=180.0 |
---|
| 515 | xlonr=xlon*pi/180. |
---|
| 516 | ylat=-90.0 |
---|
| 517 | uuaux=+ffpol*sin(xlonr-ddpol) |
---|
| 518 | vvaux=-ffpol*cos(xlonr-ddpol) |
---|
[4fbe7a5] | 519 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux,vvpolaux) |
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[e200b7a] | 520 | |
---|
| 521 | jy=0 |
---|
| 522 | do ix=0,nxmin1 |
---|
| 523 | uupol(ix,jy,iz,n)=uupolaux |
---|
| 524 | vvpol(ix,jy,iz,n)=vvpolaux |
---|
| 525 | end do |
---|
| 526 | end do |
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| 527 | |
---|
| 528 | |
---|
[f251e57] | 529 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
| 530 | ! ward parallel of latitude |
---|
[e200b7a] | 531 | |
---|
| 532 | do iz=1,nz |
---|
| 533 | wdummy=0. |
---|
| 534 | jy=1 |
---|
| 535 | do ix=0,nxmin1 |
---|
| 536 | wdummy=wdummy+ww(ix,jy,iz,n) |
---|
| 537 | end do |
---|
| 538 | wdummy=wdummy/real(nx) |
---|
| 539 | jy=0 |
---|
| 540 | do ix=0,nxmin1 |
---|
| 541 | ww(ix,jy,iz,n)=wdummy |
---|
| 542 | end do |
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| 543 | end do |
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| 544 | endif |
---|
| 545 | |
---|
| 546 | |
---|
[f251e57] | 547 | ! write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz |
---|
| 548 | ! create a cloud and rainout/washout field, clouds occur where rh>80% |
---|
| 549 | ! total cloudheight is stored at level 0 |
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[e200b7a] | 550 | do jy=0,nymin1 |
---|
| 551 | do ix=0,nxmin1 |
---|
| 552 | rain_cloud_above=0 |
---|
| 553 | lsp=lsprec(ix,jy,1,n) |
---|
| 554 | convp=convprec(ix,jy,1,n) |
---|
| 555 | cloudsh(ix,jy,n)=0 |
---|
| 556 | do kz_inv=1,nz-1 |
---|
| 557 | kz=nz-kz_inv+1 |
---|
| 558 | pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
| 559 | rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
| 560 | clouds(ix,jy,kz,n)=0 |
---|
| 561 | if (rh.gt.0.8) then ! in cloud |
---|
[4fbe7a5] | 562 | if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
---|
| 563 | rain_cloud_above=1 |
---|
| 564 | cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+height(kz)-height(kz-1) |
---|
| 565 | if (lsp.ge.convp) then |
---|
| 566 | clouds(ix,jy,kz,n)=3 ! lsp dominated rainout |
---|
| 567 | else |
---|
| 568 | clouds(ix,jy,kz,n)=2 ! convp dominated rainout |
---|
| 569 | endif |
---|
| 570 | else ! no precipitation |
---|
| 571 | clouds(ix,jy,kz,n)=1 ! cloud |
---|
| 572 | endif |
---|
[e200b7a] | 573 | else ! no cloud |
---|
[4fbe7a5] | 574 | if (rain_cloud_above.eq.1) then ! scavenging |
---|
| 575 | if (lsp.ge.convp) then |
---|
| 576 | clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
---|
| 577 | else |
---|
| 578 | clouds(ix,jy,kz,n)=4 ! convp dominated washout |
---|
| 579 | endif |
---|
| 580 | endif |
---|
[e200b7a] | 581 | endif |
---|
| 582 | end do |
---|
| 583 | end do |
---|
| 584 | end do |
---|
| 585 | |
---|
| 586 | |
---|
[6ecb30a] | 587 | end subroutine verttransform_gfs |
---|