[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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[4fbe7a5] | 23 | ! i i i i i |
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[e200b7a] | 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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[6ecb30a] | 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 routine from verttransform to verttransform_gfs |
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| 53 | ! |
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[e200b7a] | 54 | !***************************************************************************** |
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| 55 | ! * |
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| 56 | ! Variables: * |
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| 57 | ! nx,ny,nz field dimensions in x,y and z direction * |
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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 | ! clouds(0:nxmax,0:nymax,0:nzmax,2) cloud field for wet deposition * |
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| 65 | ! * |
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| 66 | !***************************************************************************** |
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| 67 | |
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| 68 | use par_mod |
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| 69 | use com_mod |
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| 70 | use cmapf_mod |
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| 71 | |
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| 72 | implicit none |
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| 73 | |
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| 74 | integer :: ix,jy,kz,iz,n,kmin,kl,klp,ix1,jy1,ixp,jyp,ixm,jym |
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| 75 | integer :: rain_cloud_above,kz_inv |
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| 76 | real :: f_qvsat,pressure |
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[db91eb7] | 77 | real :: rh,lsp,cloudh_min,convp,prec |
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[4fbe7a5] | 78 | real :: rhoh(nuvzmax),pinmconv(nzmax) |
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[e200b7a] | 79 | real :: ew,pint,tv,tvold,pold,dz1,dz2,dz,ui,vi |
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| 80 | real :: xlon,ylat,xlonr,dzdx,dzdy |
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[4fbe7a5] | 81 | real :: dzdx1,dzdx2,dzdy1,dzdy2,cosf |
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[e200b7a] | 82 | real :: uuaux,vvaux,uupolaux,vvpolaux,ddpol,ffpol,wdummy |
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| 83 | real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 84 | real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 85 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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| 86 | real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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| 87 | real :: wzlev(nwzmax),uvwzlev(0:nxmax-1,0:nymax-1,nzmax) |
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| 88 | real,parameter :: const=r_air/ga |
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| 89 | |
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| 90 | ! NCEP version |
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| 91 | integer :: llev, i |
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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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[4fbe7a5] | 99 | ! u,v,T and qv are given. * |
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[e200b7a] | 100 | !************************************************************************* |
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| 101 | |
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| 102 | if (init) then |
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| 103 | |
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| 104 | ! Search for a point with high surface pressure (i.e. not above significant topography) |
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| 105 | ! Then, use this point to construct a reference z profile, to be used at all times |
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| 106 | !***************************************************************************** |
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| 107 | |
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| 108 | do jy=0,nymin1 |
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| 109 | do ix=0,nxmin1 |
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| 110 | if (ps(ix,jy,1,n).gt.100000.) then |
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| 111 | ixm=ix |
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| 112 | jym=jy |
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| 113 | goto 3 |
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| 114 | endif |
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| 115 | end do |
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| 116 | end do |
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| 117 | 3 continue |
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| 118 | |
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| 119 | |
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| 120 | tvold=tt2(ixm,jym,1,n)*(1.+0.378*ew(td2(ixm,jym,1,n))/ & |
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[4fbe7a5] | 121 | ps(ixm,jym,1,n)) |
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[e200b7a] | 122 | pold=ps(ixm,jym,1,n) |
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| 123 | height(1)=0. |
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| 124 | |
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| 125 | do kz=2,nuvz |
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| 126 | pint=akz(kz)+bkz(kz)*ps(ixm,jym,1,n) |
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| 127 | tv=tth(ixm,jym,kz,n)*(1.+0.608*qvh(ixm,jym,kz,n)) |
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| 128 | |
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| 129 | if (abs(tv-tvold).gt.0.2) then |
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[4fbe7a5] | 130 | height(kz)=height(kz-1)+const*log(pold/pint)* & |
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| 131 | (tv-tvold)/log(tv/tvold) |
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[e200b7a] | 132 | else |
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[4fbe7a5] | 133 | height(kz)=height(kz-1)+const*log(pold/pint)*tv |
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[e200b7a] | 134 | endif |
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| 135 | |
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| 136 | tvold=tv |
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| 137 | pold=pint |
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| 138 | end do |
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| 139 | |
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| 140 | |
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| 141 | ! Determine highest levels that can be within PBL |
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| 142 | !************************************************ |
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| 143 | |
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| 144 | do kz=1,nz |
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| 145 | if (height(kz).gt.hmixmax) then |
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| 146 | nmixz=kz |
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| 147 | goto 9 |
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| 148 | endif |
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| 149 | end do |
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| 150 | 9 continue |
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| 151 | |
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| 152 | ! Do not repeat initialization of the Cartesian z grid |
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| 153 | !***************************************************** |
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| 154 | |
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| 155 | init=.false. |
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| 156 | |
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| 157 | endif |
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| 158 | |
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| 159 | |
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| 160 | ! Loop over the whole grid |
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| 161 | !************************* |
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| 162 | |
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| 163 | do jy=0,nymin1 |
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| 164 | do ix=0,nxmin1 |
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| 165 | |
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| 166 | ! NCEP version: find first level above ground |
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| 167 | llev = 0 |
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| 168 | do i=1,nuvz |
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[4fbe7a5] | 169 | if (ps(ix,jy,1,n).lt.akz(i)) llev=i |
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[e200b7a] | 170 | end do |
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| 171 | llev = llev+1 |
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| 172 | if (llev.gt.nuvz-2) llev = nuvz-2 |
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| 173 | ! if (llev.eq.nuvz-2) write(*,*) 'verttransform |
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| 174 | ! +WARNING: LLEV eq NUZV-2' |
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| 175 | ! NCEP version |
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| 176 | |
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| 177 | |
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| 178 | ! compute height of pressure levels above ground |
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| 179 | !*********************************************** |
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| 180 | |
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| 181 | tvold=tth(ix,jy,llev,n)*(1.+0.608*qvh(ix,jy,llev,n)) |
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| 182 | pold=akz(llev) |
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| 183 | wzlev(llev)=0. |
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| 184 | uvwzlev(ix,jy,llev)=0. |
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| 185 | rhoh(llev)=pold/(r_air*tvold) |
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| 186 | |
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| 187 | do kz=llev+1,nuvz |
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| 188 | pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) |
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| 189 | tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n)) |
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| 190 | rhoh(kz)=pint/(r_air*tv) |
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| 191 | |
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| 192 | if (abs(tv-tvold).gt.0.2) then |
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[4fbe7a5] | 193 | uvwzlev(ix,jy,kz)=uvwzlev(ix,jy,kz-1)+const*log(pold/pint)* & |
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| 194 | (tv-tvold)/log(tv/tvold) |
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[e200b7a] | 195 | else |
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[4fbe7a5] | 196 | uvwzlev(ix,jy,kz)=uvwzlev(ix,jy,kz-1)+const*log(pold/pint)*tv |
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[e200b7a] | 197 | endif |
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[4fbe7a5] | 198 | wzlev(kz)=uvwzlev(ix,jy,kz) |
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[e200b7a] | 199 | |
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| 200 | tvold=tv |
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| 201 | pold=pint |
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| 202 | end do |
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| 203 | |
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| 204 | ! pinmconv=(h2-h1)/(p2-p1) |
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| 205 | |
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| 206 | pinmconv(llev)=(uvwzlev(ix,jy,llev+1)-uvwzlev(ix,jy,llev))/ & |
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| 207 | ((aknew(llev+1)+bknew(llev+1)*ps(ix,jy,1,n))- & |
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| 208 | (aknew(llev)+bknew(llev)*ps(ix,jy,1,n))) |
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| 209 | do kz=llev+1,nz-1 |
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| 210 | pinmconv(kz)=(uvwzlev(ix,jy,kz+1)-uvwzlev(ix,jy,kz-1))/ & |
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| 211 | ((aknew(kz+1)+bknew(kz+1)*ps(ix,jy,1,n))- & |
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| 212 | (aknew(kz-1)+bknew(kz-1)*ps(ix,jy,1,n))) |
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| 213 | end do |
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| 214 | pinmconv(nz)=(uvwzlev(ix,jy,nz)-uvwzlev(ix,jy,nz-1))/ & |
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| 215 | ((aknew(nz)+bknew(nz)*ps(ix,jy,1,n))- & |
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| 216 | (aknew(nz-1)+bknew(nz-1)*ps(ix,jy,1,n))) |
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| 217 | |
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| 218 | |
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| 219 | ! Levels, where u,v,t and q are given |
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| 220 | !************************************ |
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| 221 | |
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| 222 | uu(ix,jy,1,n)=uuh(ix,jy,llev) |
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| 223 | vv(ix,jy,1,n)=vvh(ix,jy,llev) |
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| 224 | tt(ix,jy,1,n)=tth(ix,jy,llev,n) |
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| 225 | qv(ix,jy,1,n)=qvh(ix,jy,llev,n) |
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[db91eb7] | 226 | ! IP & SEC, 201812 add clouds |
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| 227 | if (readclouds) then |
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| 228 | clwc(ix,jy,1,n)=clwch(ix,jy,llev,n) |
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| 229 | endif |
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[e200b7a] | 230 | pv(ix,jy,1,n)=pvh(ix,jy,llev) |
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| 231 | rho(ix,jy,1,n)=rhoh(llev) |
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| 232 | pplev(ix,jy,1,n)=akz(llev) |
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| 233 | uu(ix,jy,nz,n)=uuh(ix,jy,nuvz) |
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| 234 | vv(ix,jy,nz,n)=vvh(ix,jy,nuvz) |
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| 235 | tt(ix,jy,nz,n)=tth(ix,jy,nuvz,n) |
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| 236 | qv(ix,jy,nz,n)=qvh(ix,jy,nuvz,n) |
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[db91eb7] | 237 | ! IP & SEC, 201812 add clouds |
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| 238 | if (readclouds) then |
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| 239 | clwc(ix,jy,nz,n)=clwch(ix,jy,nuvz,n) |
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| 240 | endif |
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[e200b7a] | 241 | pv(ix,jy,nz,n)=pvh(ix,jy,nuvz) |
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| 242 | rho(ix,jy,nz,n)=rhoh(nuvz) |
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| 243 | pplev(ix,jy,nz,n)=akz(nuvz) |
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| 244 | kmin=llev+1 |
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| 245 | do iz=2,nz-1 |
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| 246 | do kz=kmin,nuvz |
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[4fbe7a5] | 247 | if(height(iz).gt.uvwzlev(ix,jy,nuvz)) then |
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[e200b7a] | 248 | uu(ix,jy,iz,n)=uu(ix,jy,nz,n) |
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| 249 | vv(ix,jy,iz,n)=vv(ix,jy,nz,n) |
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| 250 | tt(ix,jy,iz,n)=tt(ix,jy,nz,n) |
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| 251 | qv(ix,jy,iz,n)=qv(ix,jy,nz,n) |
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[db91eb7] | 252 | ! IP & SEC, 201812 add clouds |
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| 253 | if (readclouds) then |
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| 254 | clwc(ix,jy,iz,n)=clwc(ix,jy,nz,n) |
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| 255 | endif |
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[e200b7a] | 256 | pv(ix,jy,iz,n)=pv(ix,jy,nz,n) |
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| 257 | rho(ix,jy,iz,n)=rho(ix,jy,nz,n) |
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| 258 | pplev(ix,jy,iz,n)=pplev(ix,jy,nz,n) |
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| 259 | goto 30 |
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| 260 | endif |
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[4fbe7a5] | 261 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
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| 262 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
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| 263 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
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| 264 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
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| 265 | dz=dz1+dz2 |
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| 266 | uu(ix,jy,iz,n)=(uuh(ix,jy,kz-1)*dz2+uuh(ix,jy,kz)*dz1)/dz |
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| 267 | vv(ix,jy,iz,n)=(vvh(ix,jy,kz-1)*dz2+vvh(ix,jy,kz)*dz1)/dz |
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| 268 | tt(ix,jy,iz,n)=(tth(ix,jy,kz-1,n)*dz2 & |
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| 269 | +tth(ix,jy,kz,n)*dz1)/dz |
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| 270 | qv(ix,jy,iz,n)=(qvh(ix,jy,kz-1,n)*dz2 & |
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| 271 | +qvh(ix,jy,kz,n)*dz1)/dz |
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[db91eb7] | 272 | ! IP & SEC, 201812 add clouds |
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| 273 | if (readclouds) then |
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| 274 | clwc(ix,jy,iz,n)=(clwch(ix,jy,kz-1,n)*dz2 & |
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| 275 | +clwch(ix,jy,kz,n)*dz1)/dz |
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| 276 | endif |
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[4fbe7a5] | 277 | pv(ix,jy,iz,n)=(pvh(ix,jy,kz-1)*dz2+pvh(ix,jy,kz)*dz1)/dz |
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| 278 | rho(ix,jy,iz,n)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
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| 279 | pplev(ix,jy,iz,n)=(akz(kz-1)*dz2+akz(kz)*dz1)/dz |
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[e200b7a] | 280 | endif |
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| 281 | end do |
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| 282 | 30 continue |
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| 283 | end do |
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| 284 | |
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| 285 | |
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| 286 | ! Levels, where w is given |
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| 287 | !************************* |
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| 288 | |
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| 289 | ww(ix,jy,1,n)=wwh(ix,jy,llev)*pinmconv(llev) |
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| 290 | ww(ix,jy,nz,n)=wwh(ix,jy,nwz)*pinmconv(nz) |
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| 291 | kmin=llev+1 |
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| 292 | do iz=2,nz |
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| 293 | do kz=kmin,nwz |
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| 294 | if ((height(iz).gt.wzlev(kz-1)).and. & |
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[4fbe7a5] | 295 | (height(iz).le.wzlev(kz))) then |
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| 296 | dz1=height(iz)-wzlev(kz-1) |
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| 297 | dz2=wzlev(kz)-height(iz) |
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| 298 | dz=dz1+dz2 |
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| 299 | ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*pinmconv(kz-1)*dz2 & |
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| 300 | +wwh(ix,jy,kz)*pinmconv(kz)*dz1)/dz |
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[e200b7a] | 301 | endif |
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| 302 | end do |
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| 303 | end do |
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| 304 | |
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| 305 | |
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| 306 | ! Compute density gradients at intermediate levels |
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| 307 | !************************************************* |
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| 308 | |
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| 309 | drhodz(ix,jy,1,n)=(rho(ix,jy,2,n)-rho(ix,jy,1,n))/ & |
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| 310 | (height(2)-height(1)) |
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| 311 | do kz=2,nz-1 |
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| 312 | drhodz(ix,jy,kz,n)=(rho(ix,jy,kz+1,n)-rho(ix,jy,kz-1,n))/ & |
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[4fbe7a5] | 313 | (height(kz+1)-height(kz-1)) |
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[e200b7a] | 314 | end do |
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| 315 | drhodz(ix,jy,nz,n)=drhodz(ix,jy,nz-1,n) |
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| 316 | |
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| 317 | end do |
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| 318 | end do |
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| 319 | |
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| 320 | |
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| 321 | !**************************************************************** |
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| 322 | ! Compute slope of eta levels in windward direction and resulting |
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| 323 | ! vertical wind correction |
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| 324 | !**************************************************************** |
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| 325 | |
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| 326 | do jy=1,ny-2 |
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[4fbe7a5] | 327 | cosf=cos((real(jy)*dy+ylat0)*pi180) |
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[e200b7a] | 328 | do ix=1,nx-2 |
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| 329 | |
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| 330 | ! NCEP version: find first level above ground |
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| 331 | llev = 0 |
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| 332 | do i=1,nuvz |
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| 333 | if (ps(ix,jy,1,n).lt.akz(i)) llev=i |
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| 334 | end do |
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| 335 | llev = llev+1 |
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| 336 | if (llev.gt.nuvz-2) llev = nuvz-2 |
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| 337 | ! if (llev.eq.nuvz-2) write(*,*) 'verttransform |
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| 338 | ! +WARNING: LLEV eq NUZV-2' |
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| 339 | ! NCEP version |
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| 340 | |
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| 341 | kmin=llev+1 |
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| 342 | do iz=2,nz-1 |
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| 343 | |
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[4fbe7a5] | 344 | ui=uu(ix,jy,iz,n)*dxconst/cosf |
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[e200b7a] | 345 | vi=vv(ix,jy,iz,n)*dyconst |
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| 346 | |
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| 347 | do kz=kmin,nz |
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| 348 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
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[4fbe7a5] | 349 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
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[e200b7a] | 350 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
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| 351 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
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| 352 | dz=dz1+dz2 |
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| 353 | kl=kz-1 |
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| 354 | klp=kz |
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| 355 | goto 47 |
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| 356 | endif |
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| 357 | end do |
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| 358 | |
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| 359 | 47 ix1=ix-1 |
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| 360 | jy1=jy-1 |
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| 361 | ixp=ix+1 |
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| 362 | jyp=jy+1 |
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| 363 | |
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| 364 | dzdx1=(uvwzlev(ixp,jy,kl)-uvwzlev(ix1,jy,kl))/2. |
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| 365 | dzdx2=(uvwzlev(ixp,jy,klp)-uvwzlev(ix1,jy,klp))/2. |
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| 366 | dzdx=(dzdx1*dz2+dzdx2*dz1)/dz |
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| 367 | |
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| 368 | dzdy1=(uvwzlev(ix,jyp,kl)-uvwzlev(ix,jy1,kl))/2. |
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| 369 | dzdy2=(uvwzlev(ix,jyp,klp)-uvwzlev(ix,jy1,klp))/2. |
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| 370 | dzdy=(dzdy1*dz2+dzdy2*dz1)/dz |
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| 371 | |
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| 372 | ww(ix,jy,iz,n)=ww(ix,jy,iz,n)+(dzdx*ui+dzdy*vi) |
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| 373 | |
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| 374 | end do |
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| 375 | |
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| 376 | end do |
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| 377 | end do |
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| 378 | |
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| 379 | |
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| 380 | ! If north pole is in the domain, calculate wind velocities in polar |
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| 381 | ! stereographic coordinates |
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| 382 | !******************************************************************* |
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| 383 | |
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| 384 | if (nglobal) then |
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| 385 | do jy=int(switchnorthg)-2,nymin1 |
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| 386 | ylat=ylat0+real(jy)*dy |
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| 387 | do ix=0,nxmin1 |
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| 388 | xlon=xlon0+real(ix)*dx |
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| 389 | do iz=1,nz |
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| 390 | call cc2gll(northpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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| 391 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
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| 392 | vvpol(ix,jy,iz,n)) |
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| 393 | end do |
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| 394 | end do |
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| 395 | end do |
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| 396 | |
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| 397 | |
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| 398 | do iz=1,nz |
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| 399 | |
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| 400 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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| 401 | xlon=xlon0+real(nx/2-1)*dx |
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| 402 | xlonr=xlon*pi/180. |
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[4fbe7a5] | 403 | ffpol=sqrt(uu(nx/2-1,nymin1,iz,n)**2+vv(nx/2-1,nymin1,iz,n)**2) |
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| 404 | if (vv(nx/2-1,nymin1,iz,n).lt.0.) then |
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| 405 | ddpol=atan(uu(nx/2-1,nymin1,iz,n)/vv(nx/2-1,nymin1,iz,n))-xlonr |
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[e200b7a] | 406 | elseif (vv(nx/2-1,nymin1,iz,n).gt.0.) then |
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| 407 | ddpol=pi+atan(uu(nx/2-1,nymin1,iz,n)/ & |
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[4fbe7a5] | 408 | vv(nx/2-1,nymin1,iz,n))-xlonr |
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[e200b7a] | 409 | else |
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| 410 | ddpol=pi/2-xlonr |
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| 411 | endif |
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| 412 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
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| 413 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
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| 414 | |
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| 415 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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| 416 | xlon=180.0 |
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| 417 | xlonr=xlon*pi/180. |
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| 418 | ylat=90.0 |
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| 419 | uuaux=-ffpol*sin(xlonr+ddpol) |
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| 420 | vvaux=-ffpol*cos(xlonr+ddpol) |
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[4fbe7a5] | 421 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux,vvpolaux) |
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[e200b7a] | 422 | jy=nymin1 |
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| 423 | do ix=0,nxmin1 |
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| 424 | uupol(ix,jy,iz,n)=uupolaux |
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| 425 | vvpol(ix,jy,iz,n)=vvpolaux |
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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 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
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| 431 | ! ward parallel of latitude |
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| 432 | |
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[4fbe7a5] | 433 | do iz=1,nz |
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[e200b7a] | 434 | wdummy=0. |
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| 435 | jy=ny-2 |
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| 436 | do ix=0,nxmin1 |
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| 437 | wdummy=wdummy+ww(ix,jy,iz,n) |
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| 438 | end do |
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| 439 | wdummy=wdummy/real(nx) |
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| 440 | jy=nymin1 |
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| 441 | do ix=0,nxmin1 |
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| 442 | ww(ix,jy,iz,n)=wdummy |
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| 443 | end do |
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[4fbe7a5] | 444 | end do |
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[e200b7a] | 445 | |
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| 446 | endif |
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| 447 | |
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| 448 | |
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| 449 | ! If south pole is in the domain, calculate wind velocities in polar |
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| 450 | ! stereographic coordinates |
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| 451 | !******************************************************************* |
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| 452 | |
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| 453 | if (sglobal) then |
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| 454 | do jy=0,int(switchsouthg)+3 |
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| 455 | ylat=ylat0+real(jy)*dy |
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| 456 | do ix=0,nxmin1 |
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| 457 | xlon=xlon0+real(ix)*dx |
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| 458 | do iz=1,nz |
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| 459 | call cc2gll(southpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
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[4fbe7a5] | 460 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n),vvpol(ix,jy,iz,n)) |
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[e200b7a] | 461 | end do |
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| 462 | end do |
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| 463 | end do |
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| 464 | |
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| 465 | do iz=1,nz |
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| 466 | |
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| 467 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
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| 468 | xlon=xlon0+real(nx/2-1)*dx |
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| 469 | xlonr=xlon*pi/180. |
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[4fbe7a5] | 470 | ffpol=sqrt(uu(nx/2-1,0,iz,n)**2+vv(nx/2-1,0,iz,n)**2) |
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[e200b7a] | 471 | if(vv(nx/2-1,0,iz,n).lt.0.) then |
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[4fbe7a5] | 472 | ddpol=atan(uu(nx/2-1,0,iz,n)/vv(nx/2-1,0,iz,n))+xlonr |
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[e200b7a] | 473 | elseif (vv(nx/2-1,0,iz,n).gt.0.) then |
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[4fbe7a5] | 474 | ddpol=pi+atan(uu(nx/2-1,0,iz,n)/vv(nx/2-1,0,iz,n))-xlonr |
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[e200b7a] | 475 | else |
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| 476 | ddpol=pi/2-xlonr |
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| 477 | endif |
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| 478 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
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| 479 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
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| 480 | |
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| 481 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
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| 482 | xlon=180.0 |
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| 483 | xlonr=xlon*pi/180. |
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| 484 | ylat=-90.0 |
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| 485 | uuaux=+ffpol*sin(xlonr-ddpol) |
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| 486 | vvaux=-ffpol*cos(xlonr-ddpol) |
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[4fbe7a5] | 487 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux,vvpolaux) |
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[e200b7a] | 488 | |
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| 489 | jy=0 |
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| 490 | do ix=0,nxmin1 |
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| 491 | uupol(ix,jy,iz,n)=uupolaux |
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| 492 | vvpol(ix,jy,iz,n)=vvpolaux |
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| 493 | end do |
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| 494 | end do |
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| 495 | |
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| 496 | |
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| 497 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
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| 498 | ! ward parallel of latitude |
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| 499 | |
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| 500 | do iz=1,nz |
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| 501 | wdummy=0. |
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| 502 | jy=1 |
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| 503 | do ix=0,nxmin1 |
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| 504 | wdummy=wdummy+ww(ix,jy,iz,n) |
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| 505 | end do |
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| 506 | wdummy=wdummy/real(nx) |
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| 507 | jy=0 |
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| 508 | do ix=0,nxmin1 |
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| 509 | ww(ix,jy,iz,n)=wdummy |
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| 510 | end do |
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| 511 | end do |
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| 512 | endif |
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| 513 | |
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| 514 | |
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[db91eb7] | 515 | |
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| 516 | !*********************************************************************************** |
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| 517 | ! IP & SEC, 201812 GFS clouds read |
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| 518 | if (readclouds) then |
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| 519 | ! The method is loops all grids vertically and constructs the 3D matrix for clouds |
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| 520 | ! Cloud top and cloud bottom gid cells are assigned as well as the total column |
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| 521 | ! cloud water. For precipitating grids, the type and whether it is in or below |
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| 522 | ! cloud scavenging are assigned with numbers 2-5 (following the old metod). |
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| 523 | ! Distinction is done for lsp and convp though they are treated the same in regards |
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| 524 | ! to scavenging. Also clouds that are not precipitating are defined which may be |
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| 525 | ! to include future cloud processing by non-precipitating-clouds. |
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| 526 | !*********************************************************************************** |
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| 527 | write(*,*) 'Global NCEP fields: using cloud water' |
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| 528 | clw(:,:,:,n)=0.0 |
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| 529 | ctwc(:,:,n)=0.0 |
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| 530 | clouds(:,:,:,n)=0 |
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| 531 | ! If water/ice are read separately into clwc and ciwc, store sum in clwc |
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| 532 | do jy=0,nymin1 |
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| 533 | do ix=0,nxmin1 |
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| 534 | lsp=lsprec(ix,jy,1,n) |
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| 535 | convp=convprec(ix,jy,1,n) |
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| 536 | prec=lsp+convp |
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| 537 | ! Find clouds in the vertical |
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| 538 | do kz=1, nz-1 !go from top to bottom |
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| 539 | if (clwc(ix,jy,kz,n).gt.0) then |
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| 540 | ! assuming rho is in kg/m3 and hz in m gives: kg/kg * kg/m3 *m3/kg /m = m2/m3 |
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| 541 | clw(ix,jy,kz,n)=(clwc(ix,jy,kz,n)*rho(ix,jy,kz,n))*(height(kz+1)-height(kz)) |
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| 542 | ctwc(ix,jy,n) = ctwc(ix,jy,n)+clw(ix,jy,kz,n) |
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| 543 | cloudh_min=min(height(kz+1),height(kz)) |
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| 544 | endif |
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| 545 | end do |
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| 546 | |
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| 547 | ! If Precipitation. Define removal type in the vertical |
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| 548 | if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
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| 549 | |
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| 550 | do kz=nz,1,-1 !go Bottom up! |
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| 551 | if (clw(ix,jy,kz,n).gt. 0) then ! is in cloud |
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| 552 | cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+height(kz)-height(kz-1) |
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| 553 | clouds(ix,jy,kz,n)=1 ! is a cloud |
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| 554 | if (lsp.ge.convp) then |
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| 555 | clouds(ix,jy,kz,n)=3 ! lsp in-cloud |
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| 556 | else |
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| 557 | clouds(ix,jy,kz,n)=2 ! convp in-cloud |
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| 558 | endif ! convective or large scale |
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| 559 | elseif((clw(ix,jy,kz,n).le.0) .and. (cloudh_min.ge.height(kz))) then ! is below cloud |
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| 560 | if (lsp.ge.convp) then |
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| 561 | clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
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| 562 | else |
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| 563 | clouds(ix,jy,kz,n)=4 ! convp dominated washout |
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| 564 | endif ! convective or large scale |
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| 565 | endif |
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| 566 | |
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| 567 | if (height(kz).ge. 19000) then ! set a max height for removal |
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| 568 | clouds(ix,jy,kz,n)=0 |
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| 569 | endif !clw>0 |
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| 570 | end do !nz |
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| 571 | endif ! precipitation |
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| 572 | end do |
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| 573 | end do |
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| 574 | else |
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| 575 | write(*,*) 'Global NCEP fields: using cloud water from Parameterization' |
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[e200b7a] | 576 | ! write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz |
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| 577 | ! create a cloud and rainout/washout field, clouds occur where rh>80% |
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| 578 | ! total cloudheight is stored at level 0 |
---|
| 579 | do jy=0,nymin1 |
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| 580 | do ix=0,nxmin1 |
---|
| 581 | rain_cloud_above=0 |
---|
| 582 | lsp=lsprec(ix,jy,1,n) |
---|
| 583 | convp=convprec(ix,jy,1,n) |
---|
| 584 | cloudsh(ix,jy,n)=0 |
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| 585 | do kz_inv=1,nz-1 |
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| 586 | kz=nz-kz_inv+1 |
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| 587 | pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
| 588 | rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
| 589 | clouds(ix,jy,kz,n)=0 |
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| 590 | if (rh.gt.0.8) then ! in cloud |
---|
[4fbe7a5] | 591 | if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
---|
| 592 | rain_cloud_above=1 |
---|
| 593 | cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+height(kz)-height(kz-1) |
---|
| 594 | if (lsp.ge.convp) then |
---|
| 595 | clouds(ix,jy,kz,n)=3 ! lsp dominated rainout |
---|
| 596 | else |
---|
| 597 | clouds(ix,jy,kz,n)=2 ! convp dominated rainout |
---|
| 598 | endif |
---|
| 599 | else ! no precipitation |
---|
| 600 | clouds(ix,jy,kz,n)=1 ! cloud |
---|
| 601 | endif |
---|
[e200b7a] | 602 | else ! no cloud |
---|
[4fbe7a5] | 603 | if (rain_cloud_above.eq.1) then ! scavenging |
---|
| 604 | if (lsp.ge.convp) then |
---|
| 605 | clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
---|
| 606 | else |
---|
| 607 | clouds(ix,jy,kz,n)=4 ! convp dominated washout |
---|
| 608 | endif |
---|
| 609 | endif |
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[e200b7a] | 610 | endif |
---|
| 611 | end do |
---|
| 612 | end do |
---|
| 613 | end do |
---|
[db91eb7] | 614 | endif ! IP & SEC 201812, GFS clouds read |
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[e200b7a] | 615 | |
---|
| 616 | |
---|
[6ecb30a] | 617 | end subroutine verttransform_gfs |
---|