[16] | 1 | !*********************************************************************** |
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| 2 | !* Copyright 2012,2013 * |
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| 3 | !* Jerome Brioude, Delia Arnold, Andreas Stohl, Wayne Angevine, * |
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| 4 | !* John Burkhart, Massimo Cassiani, Adam Dingwell, Richard C Easter, Sabine Eckhardt,* |
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| 5 | !* Stephanie Evan, Jerome D Fast, Don Morton, Ignacio Pisso, * |
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| 6 | !* Petra Seibert, Gerard Wotawa, Caroline Forster, Harald Sodemann, * |
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| 7 | !* * |
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| 8 | !* This file is part of FLEXPART WRF * |
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| 9 | !* * |
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| 10 | !* FLEXPART is free software: you can redistribute it and/or modify * |
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| 11 | !* it under the terms of the GNU General Public License as published by* |
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| 12 | !* the Free Software Foundation, either version 3 of the License, or * |
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| 13 | !* (at your option) any later version. * |
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| 14 | !* * |
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| 15 | !* FLEXPART is distributed in the hope that it will be useful, * |
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| 16 | !* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 17 | !* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 18 | !* GNU General Public License for more details. * |
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| 19 | !* * |
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| 20 | !* You should have received a copy of the GNU General Public License * |
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| 21 | !* along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
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| 22 | !*********************************************************************** |
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| 23 | subroutine verttransform_nests(n,uuhn,vvhn,wwhn,pvhn,divhn) |
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| 24 | ! i i i i i |
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| 25 | !******************************************************************************* |
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| 26 | ! * |
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| 27 | ! Note: This is the FLEXPART_WRF version of subroutine verttransform_nests. * |
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| 28 | ! The computational grid is the WRF x-y grid rather than lat-lon. * |
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| 29 | ! * |
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| 30 | ! This subroutine transforms temperature, dew point temperature and * |
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| 31 | ! wind components from eta to meter coordinates. * |
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| 32 | ! The vertical wind component is transformed from Pa/s to m/s using * |
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| 33 | ! the conversion factor pinmconv. * |
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| 34 | ! In addition, this routine calculates vertical density gradients * |
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| 35 | ! needed for the parameterization of the turbulent velocities. * |
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| 36 | ! It is similar to verttransform, but makes the transformations for * |
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| 37 | ! the nested grids. * |
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| 38 | ! * |
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| 39 | ! Author: A. Stohl, G. Wotawa * |
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| 40 | ! * |
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| 41 | ! 12 August 1996 * |
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| 42 | ! Update: 16 January 1998 * |
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| 43 | ! * |
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| 44 | ! Major update: 17 February 1999 * |
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| 45 | ! by G. Wotawa * |
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| 46 | ! * |
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| 47 | ! - Vertical levels for u, v and w are put together * |
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| 48 | ! - Slope correction for vertical velocity: Modification of calculation * |
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| 49 | ! procedure * |
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| 50 | ! * |
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| 51 | ! Changes, Bernd C. Krueger, Feb. 2001: (marked "C-cv") * |
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| 52 | ! Variables tthn and qvhn (on eta coordinates) from common block * |
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| 53 | ! * |
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| 54 | ! 16 Nov 2005, R. Easter - changes for FLEXPART_WRF * |
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| 55 | ! 17 Nov 2005 - R. Easter - terrain correction applied to ww. There are * |
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| 56 | ! now 3 options, controlled by "method_w_terrain_correction" * |
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| 57 | ! * |
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| 58 | ! 11 June 2007 -- convert TKEhn to tken |
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| 59 | ! 25 June 2007 -- convert ptthn to pttn |
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| 60 | ! Jan 2012, J Brioude: modified to handle different wind options and openmp |
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| 61 | !******************************************************************************* |
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| 62 | ! * |
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| 63 | ! Variables: * |
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| 64 | ! nxn,nyn,nuvz,nwz field dimensions in x,y and z direction * |
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| 65 | ! uun wind components in x-direction [m/s] * |
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| 66 | ! vvn wind components in y-direction [m/s] * |
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| 67 | ! wwn wind components in z-direction [deltaeta/s] * |
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| 68 | ! ttn temperature [K] * |
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| 69 | ! pvn potential vorticity (pvu) * |
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| 70 | ! psn surface pressure [Pa] * |
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| 71 | ! * |
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| 72 | !******************************************************************************* |
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| 73 | |
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| 74 | use par_mod |
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| 75 | use com_mod |
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| 76 | |
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| 77 | ! include 'includepar' |
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| 78 | ! include 'includecom' |
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| 79 | implicit none |
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| 80 | integer :: ix,jy,kz,iz,n,l,kmin,kl,klp,ix1,jy1,ixp,jyp,ixm,jym |
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| 81 | integer :: icloudtop |
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| 82 | real :: rh,lsp,convp,prec,rhmin |
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| 83 | integer :: method_z_compute,aa,dimx,dimy |
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| 84 | real :: uvzlev(nuvzmax),wzlev(nwzmax),rhoh(nuvzmax),pinmconv(nzmax) |
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| 85 | real :: uvwzlev(0:nxmaxn-1,0:nymaxn-1,nzmax) |
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| 86 | real :: ew,pint,tv,tvold,pold,const,dz1,dz2,dz,ui,vi |
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| 87 | real :: dzdx,dzdy |
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| 88 | real :: dzdx1,dzdx2,dzdy1,dzdy2 |
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| 89 | real :: pvhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 90 | real :: divn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 91 | real(kind=4) :: uuhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 92 | real(kind=4) :: vvhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 93 | real(kind=4) :: wwhn(0:nxmaxn-1,0:nymaxn-1,nwzmax,maxnests) |
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| 94 | real(kind=4) :: divhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests) |
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| 95 | real :: wwhn_svaa(nwzmax),u,v |
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| 96 | parameter(const=r_air/ga) |
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| 97 | ! integer :: rain_cloud_above,kz_inv |
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| 98 | |
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| 99 | real :: f_qvsat,pressure |
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| 100 | ! real :: rh,lsp,convp |
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| 101 | real,parameter :: precmin = 0.002 |
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| 102 | |
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| 103 | ! CDA |
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| 104 | logical :: lconvectprec = .true. |
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| 105 | |
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| 106 | |
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| 107 | ! set method_z_compute |
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| 108 | method_z_compute = 10 |
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| 109 | |
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| 110 | |
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| 111 | ! Loop over all nests |
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| 112 | !******************** |
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| 113 | |
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| 114 | do l=1,numbnests |
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| 115 | dimy=nyn(l)-1 |
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| 116 | dimx=nxn(l)-1 |
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| 117 | ! print*,'start omp ' |
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| 118 | ! Loop over the whole grid |
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| 119 | !************************* |
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| 120 | !!!$OMP PARALLEL DEFAULT(SHARED) & |
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| 121 | !!!$OMP PRIVATE(ix,jy,ixm,jym,tvold,pold,pint,tv,rhoh,uvzlev,wzlev, & |
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| 122 | !!!$OMP uvwzlev,pinmconv,kz,iz,kmin,dz1,dz2,dz,ix1,jy1,ixp,jyp, & |
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| 123 | !!!$OMP dzdy,dzdx,aa,u,v ) |
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| 124 | !$OMP DO |
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| 125 | do jy=0,dimy |
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| 126 | do ix=0,dimx |
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| 127 | |
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| 128 | tvold=tt2n(ix,jy,1,n,l)*(1.+0.378*ew(td2n(ix,jy,1,n,l))/ & |
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| 129 | psn(ix,jy,1,n,l)) |
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| 130 | pold=psn(ix,jy,1,n,l) |
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| 131 | uvzlev(1)=0. |
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| 132 | wzlev(1)=0. |
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| 133 | rhoh(1)=pold/(r_air*tvold) |
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| 134 | |
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| 135 | |
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| 136 | ! Compute heights of eta levels |
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| 137 | !****************************** |
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| 138 | |
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| 139 | do kz=2,nuvz |
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| 140 | ! FLEXPART_WRF - pphn hold pressure |
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| 141 | ! pint=akz(kz)+bkz(kz)*psn(ix,jy,1,n,l) |
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| 142 | pint=pphn(ix,jy,kz,n,l) |
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| 143 | tv=tthn(ix,jy,kz,n,l)*(1.+0.608*qvhn(ix,jy,kz,n,l)) |
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| 144 | rhoh(kz)=pint/(r_air*tv) |
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| 145 | |
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| 146 | if (abs(tv-tvold).gt.0.2) then |
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| 147 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)* & |
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| 148 | (tv-tvold)/log(tv/tvold) |
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| 149 | else |
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| 150 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)*tv |
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| 151 | endif |
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| 152 | |
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| 153 | tvold=tv |
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| 154 | pold=pint |
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| 155 | end do |
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| 156 | |
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| 157 | |
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| 158 | ! print*,'etap 1',ix,jy |
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| 159 | |
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| 160 | do kz=2,nwz-1 |
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| 161 | wzlev(kz)=(uvzlev(kz+1)+uvzlev(kz))/2. |
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| 162 | end do |
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| 163 | wzlev(nwz)=wzlev(nwz-1)+ & |
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| 164 | uvzlev(nuvz)-uvzlev(nuvz-1) |
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| 165 | |
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| 166 | ! FLEXPART_WRF - get uvzlev & wzlev from zzh |
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| 167 | if (method_z_compute .eq. 10) then |
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| 168 | do kz = 2, nuvz |
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| 169 | if ((add_sfc_level .eq. 1) .and. (kz .eq. 2)) then |
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| 170 | uvzlev(kz) = 0.5*(zzhn(ix,jy,3,n,l) + & |
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| 171 | zzhn(ix,jy,1,n,l)) & |
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| 172 | - zzhn(ix,jy,1,n,l) |
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| 173 | else |
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| 174 | uvzlev(kz) = 0.5*(zzhn(ix,jy,kz+1,n,l) + & |
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| 175 | zzhn(ix,jy,kz ,n,l)) & |
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| 176 | - zzhn(ix,jy,1,n,l) |
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| 177 | end if |
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| 178 | end do |
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| 179 | do kz = 2, nwz |
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| 180 | wzlev(kz) = zzhn(ix,jy,kz+add_sfc_level,n,l) & |
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| 181 | - zzhn(ix,jy,1,n,l) |
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| 182 | end do |
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| 183 | end if |
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| 184 | |
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| 185 | ! print*,'etap 2',ix,jy |
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| 186 | ! NOTE: In FLEXPART versions up to 4.0, the number of model levels was doubled |
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| 187 | ! upon the transformation to z levels. In order to save computer memory, this is |
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| 188 | ! not done anymore in the standard version. However, this option can still be |
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| 189 | ! switched on by replacing the following lines with those below, that are |
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| 190 | ! currently commented out. |
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| 191 | ! Note that one change is also necessary in gridcheck.f, |
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| 192 | ! and three changes in verttransform.f |
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| 193 | ! |
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| 194 | ! *** NOTE -- the doubled vertical resolution has not been tested in FLEXPART_WRF |
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| 195 | !******************************************************************************* |
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| 196 | uvwzlev(ix,jy,1)=0.0 |
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| 197 | do kz=2,nuvz |
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| 198 | uvwzlev(ix,jy,kz)=uvzlev(kz) |
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| 199 | enddo |
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| 200 | ! Switch on following lines to use doubled vertical resolution |
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| 201 | ! Switch off the three lines above. |
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| 202 | ! |
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| 203 | ! *** NOTE -- the doubled vertical resolution has not been tested in FLEXPART_WRF |
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| 204 | !************************************************************* |
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| 205 | !22 uvwzlev(ix,jy,(kz-1)*2)=uvzlev(kz) |
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| 206 | ! do 23 kz=2,nwz |
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| 207 | !23 uvwzlev(ix,jy,(kz-1)*2+1)=wzlev(kz) |
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| 208 | ! End doubled vertical resolution |
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| 209 | |
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| 210 | ! pinmconv=(h2-h1)/(p2-p1) |
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| 211 | ! |
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| 212 | ! in flexpart_ecmwf, pinmconv is used to convert etadot to w |
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| 213 | ! in FLEXPART_WRF, vertical velocity is already m/s, so pinmconv=1.0 |
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| 214 | ! |
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| 215 | ! pinmconv(1)=(uvwzlev(ix,jy,2)-uvwzlev(ix,jy,1))/ |
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| 216 | ! + ((aknew(2)+bknew(2)*psn(ix,jy,1,n,l))- |
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| 217 | ! + (aknew(1)+bknew(1)*psn(ix,jy,1,n,l))) |
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| 218 | if (wind_option.eq.0) then |
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| 219 | pinmconv(1)=1.0 |
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| 220 | do kz=2,nz-1 |
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| 221 | pinmconv(kz)=1.0 |
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| 222 | enddo |
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| 223 | pinmconv(nz)=1.0 |
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| 224 | elseif (wind_option.eq.1) then |
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| 225 | ! pinmconv(1)=(uvzlev(2)-uvzlev(1)) & |
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| 226 | ! /(eta_u_wrf(1)-1.) |
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| 227 | pinmconv(1)=(wzlev(2)-0.) & |
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| 228 | /(eta_w_wrf(2)-1.) |
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| 229 | do kz=2,nz-1 |
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| 230 | ! pinmconv(kz)=(uvzlev(kz)-uvzlev(kz-1)) & |
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| 231 | ! /(eta_u_wrf(kz)-eta_u_wrf(kz-1)) |
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| 232 | pinmconv(kz)=(wzlev(kz+1)-wzlev(kz-1)) & |
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| 233 | /(eta_w_wrf(kz+1)-eta_w_wrf(kz-1)) |
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| 234 | enddo |
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| 235 | pinmconv(nwz)=pinmconv(nwz-1) |
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| 236 | endif |
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| 237 | |
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| 238 | |
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| 239 | ! print*,'etap 3',ix,jy |
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| 240 | |
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| 241 | ! Levels, where u,v,t and q are given |
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| 242 | !************************************ |
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| 243 | |
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| 244 | uun(ix,jy,1,n,l)=uuhn(ix,jy,1,l) |
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| 245 | vvn(ix,jy,1,n,l)=vvhn(ix,jy,1,l) |
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| 246 | divn(ix,jy,1,l)=divhn(ix,jy,1,l) |
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| 247 | ttn(ix,jy,1,n,l)=tthn(ix,jy,1,n,l) |
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| 248 | qvn(ix,jy,1,n,l)=qvhn(ix,jy,1,n,l) |
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| 249 | pvn(ix,jy,1,n,l)=pvhn(ix,jy,1,l) |
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| 250 | rhon(ix,jy,1,n,l)=rhoh(1) |
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| 251 | uun(ix,jy,nz,n,l)=uuhn(ix,jy,nuvz,l) |
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| 252 | vvn(ix,jy,nz,n,l)=vvhn(ix,jy,nuvz,l) |
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| 253 | ttn(ix,jy,nz,n,l)=tthn(ix,jy,nuvz,n,l) |
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| 254 | qvn(ix,jy,nz,n,l)=qvhn(ix,jy,nuvz,n,l) |
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| 255 | pvn(ix,jy,nz,n,l)=pvhn(ix,jy,nuvz,l) |
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| 256 | rhon(ix,jy,nz,n,l)=rhoh(nuvz) |
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| 257 | tken(ix,jy,1,n,l)=tkehn(ix,jy,1,n,l) |
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| 258 | tken(ix,jy,nz,n,l)=tkehn(ix,jy,nuvz,n,l) |
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| 259 | pttn(ix,jy,1,n,l)=ptthn(ix,jy,1,n,l) |
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| 260 | pttn(ix,jy,nz,n,l)=ptthn(ix,jy,nuvz,n,l) |
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| 261 | |
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| 262 | |
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| 263 | ! print*,'etap 3.5',ix,jy |
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| 264 | kmin=2 |
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| 265 | do iz=2,nz-1 |
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| 266 | do kz=kmin,nuvz |
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| 267 | if(heightmid(iz).gt.uvzlev(nuvz)) then |
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| 268 | divn(ix,jy,iz,l)=divn(ix,jy,nz,l) |
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| 269 | goto 230 |
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| 270 | endif |
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| 271 | !! print*,'etap 3.7',kz,iz,heightmid(iz),uvzlev(kz-1),uvzlev(kz) |
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| 272 | if ((heightmid(iz).gt.uvzlev(kz-1)).and. & |
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| 273 | (heightmid(iz).le.uvzlev(kz))) then |
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| 274 | dz1=heightmid(iz)-uvzlev(kz-1) |
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| 275 | dz2=uvzlev(kz)-heightmid(iz) |
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| 276 | dz=dz1+dz2 |
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| 277 | divn(ix,jy,iz,l)=(divhn(ix,jy,kz-1,l)*dz2+divhn(ix,jy,kz,l)*dz1)/dz |
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| 278 | kmin=kz |
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| 279 | goto 230 |
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| 280 | endif |
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| 281 | end do |
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| 282 | 230 continue |
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| 283 | end do |
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| 284 | |
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| 285 | ! print*,'etap 4',ix,jy |
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| 286 | |
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| 287 | kmin=2 |
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| 288 | do iz=2,nz-1 |
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| 289 | do kz=kmin,nuvz |
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| 290 | if(height(iz).gt.uvzlev(nuvz)) then |
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| 291 | uun(ix,jy,iz,n,l)=uun(ix,jy,nz,n,l) |
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| 292 | vvn(ix,jy,iz,n,l)=vvn(ix,jy,nz,n,l) |
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| 293 | ttn(ix,jy,iz,n,l)=ttn(ix,jy,nz,n,l) |
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| 294 | qvn(ix,jy,iz,n,l)=qvn(ix,jy,nz,n,l) |
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| 295 | pvn(ix,jy,iz,n,l)=pvn(ix,jy,nz,n,l) |
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| 296 | rhon(ix,jy,iz,n,l)=rhon(ix,jy,nz,n,l) |
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| 297 | tken(ix,jy,iz,n,l)=tken(ix,jy,nz,n,l) |
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| 298 | pttn(ix,jy,iz,n,l)=pttn(ix,jy,nz,n,l) |
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| 299 | goto 30 |
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| 300 | endif |
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| 301 | if ((height(iz).gt.uvzlev(kz-1)).and. & |
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| 302 | (height(iz).le.uvzlev(kz))) then |
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| 303 | dz1=height(iz)-uvzlev(kz-1) |
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| 304 | dz2=uvzlev(kz)-height(iz) |
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| 305 | dz=dz1+dz2 |
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| 306 | uun(ix,jy,iz,n,l)=(uuhn(ix,jy,kz-1,l)*dz2+ & |
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| 307 | uuhn(ix,jy,kz,l)*dz1)/dz |
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| 308 | vvn(ix,jy,iz,n,l)=(vvhn(ix,jy,kz-1,l)*dz2+ & |
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| 309 | vvhn(ix,jy,kz,l)*dz1)/dz |
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| 310 | ttn(ix,jy,iz,n,l)=(tthn(ix,jy,kz-1,n,l)*dz2+ & |
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| 311 | tthn(ix,jy,kz,n,l)*dz1)/dz |
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| 312 | qvn(ix,jy,iz,n,l)=(qvhn(ix,jy,kz-1,n,l)*dz2+ & |
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| 313 | qvhn(ix,jy,kz,n,l)*dz1)/dz |
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| 314 | pvn(ix,jy,iz,n,l)=(pvhn(ix,jy,kz-1,l)*dz2+ & |
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| 315 | pvhn(ix,jy,kz,l)*dz1)/dz |
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| 316 | rhon(ix,jy,iz,n,l)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
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| 317 | tken(ix,jy,iz,n,l)=(tkehn(ix,jy,kz-1,n,l)*dz2+ & |
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| 318 | tkehn(ix,jy,kz,n,l)*dz1)/dz |
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| 319 | pttn(ix,jy,iz,n,l)=(ptthn(ix,jy,kz-1,n,l)*dz2+ & |
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| 320 | ptthn(ix,jy,kz,n,l)*dz1)/dz |
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| 321 | |
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| 322 | |
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| 323 | kmin=kz |
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| 324 | goto 30 |
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| 325 | endif |
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| 326 | end do |
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| 327 | 30 continue |
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| 328 | end do |
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| 329 | |
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| 330 | ! print*,'continue to ww in nests' |
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| 331 | ! Levels, where w is given |
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| 332 | !************************* |
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| 333 | |
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| 334 | if (method_w_terrain_correction .eq. 20) then |
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| 335 | ! apply w correction assuming that the WRF w is "absolute w"; |
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| 336 | ! apply it here to wwh; set wwh=0 at iz=1 |
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| 337 | ix1 = max( ix-1, 0 ) |
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| 338 | jy1 = max( jy-1, 0 ) |
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| 339 | ixp = min( ix+1, nxn(l)-1 ) |
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| 340 | jyp = min( jy+1, nyn(l)-1 ) |
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| 341 | if (wind_option.eq.0) then |
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| 342 | dzdx=(oron(ixp,jy,l)-oron(ix1,jy,l))/(dxn(l)*(ixp-ix1)*m_xn(ix,jy,1,l)) |
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| 343 | dzdy=(oron(ix,jyp,l)-oron(ix,jy1,l))/(dyn(l)*(jyp-jy1)*m_yn(ix,jy,1,l)) |
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| 344 | |
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| 345 | do kz = 1, nwz-1 |
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| 346 | ! wwhn_svaa(kz) = wwhn(ix,jy,kz,l) |
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| 347 | wwhn(ix,jy,kz,l) = wwhn(ix,jy,kz,l) & |
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| 348 | - (uuhn(ix,jy,kz,l)*dzdx + vvhn(ix,jy,kz,l)*dzdy) |
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| 349 | ! if (kz .eq. 1) wwhn(ix,jy,kz,l) = 0.0 |
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| 350 | end do |
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| 351 | elseif (wind_option.ge.1) then |
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| 352 | do kz = 2, nwz-1 |
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| 353 | ! wwhn_svaa(kz) = wwhn(ix,jy,kz,l) |
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| 354 | dzdx=(zzhn(ixp,jy,kz+add_sfc_level,n,l) - zzhn(ix1,jy,kz+add_sfc_level,n,l) & |
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| 355 | -zzhn(ixp,jy,1,n,l) & |
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| 356 | +zzhn(ix1,jy,1,n,l)) & |
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| 357 | /(dxn(l)*(ixp-ix1)*m_xn(ix,jy,1,l)) |
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| 358 | dzdy=(zzhn(ix,jyp,kz+add_sfc_level,n,l) - zzhn(ix,jy1,kz+add_sfc_level,n,l) & |
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| 359 | -zzhn(ix,jyp,1,n,l) & |
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| 360 | +zzhn(ix,jy1,1,n,l)) & |
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| 361 | /(dyn(l)*(jyp-jy1)*m_yn(ix,jy,1,l)) |
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| 362 | |
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| 363 | dzdx=(zzhn(ixp,jy,kz+add_sfc_level,n,l) - zzhn(ix1,jy,kz+add_sfc_level,n,l) & |
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| 364 | -zzhn(ixp,jy,1,n,l)+zzhn(ix1,jy,1,n,l))/(dxn(l)*(ixp-ix1)*m_xn(ix,jy,1,l)) |
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| 365 | dzdy=(zzhn(ix,jyp,kz+add_sfc_level,n,l) - zzhn(ix,jy1,kz+add_sfc_level,n,l) & |
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| 366 | -zzhn(ix,jyp,1,n,l)+zzhn(ix,jy1,1,n,l))/(dyn(l)*(jyp-jy1)*m_yn(ix,jy,1,l)) |
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| 367 | u=0.5*(uuhn(ix,jy,kz+add_sfc_level,l)+uuhn(ix,jy,kz-1+add_sfc_level,l)) |
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| 368 | v=0.5*(vvhn(ix,jy,kz+add_sfc_level,l)+vvhn(ix,jy,kz-1+add_sfc_level,l)) |
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| 369 | |
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| 370 | wwhn(ix,jy,kz,l) = wwhn(ix,jy,kz,l)*pinmconv(kz) & |
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| 371 | ! + (uuhn(ix,jy,kz,l)*dzdx + vvhn(ix,jy,kz,l)*dzdy) ! variation of geopot on sigma is necessary |
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| 372 | + (u*dzdx + v*dzdy) ! variation of geopot on sigma is necessary |
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| 373 | if (kz .eq. 1) wwhn(ix,jy,kz,l) = wwhn(ix,jy,kz,l)*pinmconv(kz) |
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| 374 | |
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| 375 | ! if (kz .eq. 1) wwhn(ix,jy,kz,l) = 0.0 |
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| 376 | end do |
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| 377 | endif |
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| 378 | if (wind_option.eq.-1) then |
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| 379 | !! ww(ix,jy,1,n)=wwh(ix,jy,1) |
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| 380 | wwn(ix,jy,1,n,l)=0. |
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| 381 | do iz=2,nz |
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| 382 | wwn(ix,jy,iz,n,l)=wwn(ix,jy,iz-1,n,l)-(height(iz)-height(iz-1))* & |
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| 383 | divn(ix,jy,iz-1,l) |
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| 384 | enddo |
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| 385 | else |
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| 386 | ! print*,'converting ww in nest' |
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| 387 | wwn(ix,jy,1,n,l)=wwhn(ix,jy,1,l) |
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| 388 | wwn(ix,jy,nz,n,l)=wwhn(ix,jy,nwz,l) |
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| 389 | kmin=2 |
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| 390 | do iz=2,nz |
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| 391 | do kz=kmin,nwz |
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| 392 | if ((height(iz).gt.wzlev(kz-1)).and. & |
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| 393 | (height(iz).le.wzlev(kz))) then |
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| 394 | dz1=height(iz)-wzlev(kz-1) |
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| 395 | dz2=wzlev(kz)-height(iz) |
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| 396 | dz=dz1+dz2 |
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| 397 | wwn(ix,jy,iz,n,l)=(wwhn(ix,jy,kz-1,l)*dz2+ & |
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| 398 | wwhn(ix,jy,kz,l)*dz1)/dz |
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| 399 | kmin=kz |
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| 400 | goto 40 |
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| 401 | endif |
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| 402 | end do |
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| 403 | 40 continue |
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| 404 | end do |
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| 405 | endif |
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| 406 | |
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| 407 | ! if (method_w_terrain_correction .eq. 20) then |
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| 408 | ! do kz = 1, nwz |
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| 409 | ! wwhn(ix,jy,kz,l) = wwhn_svaa(kz) |
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| 410 | ! end do |
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| 411 | ! end if |
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| 412 | end if |
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| 413 | |
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| 414 | ! Compute density gradients at intermediate levels |
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| 415 | !************************************************* |
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| 416 | |
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| 417 | drhodzn(ix,jy,1,n,l)=(rhon(ix,jy,2,n,l)-rhon(ix,jy,1,n,l))/ & |
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| 418 | (height(2)-height(1)) |
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| 419 | do kz=2,nz-1 |
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| 420 | drhodzn(ix,jy,kz,n,l)=(rhon(ix,jy,kz+1,n,l)- & |
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| 421 | rhon(ix,jy,kz-1,n,l))/(height(kz+1)-height(kz-1)) |
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| 422 | end do |
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| 423 | drhodzn(ix,jy,nz,n,l)=drhodzn(ix,jy,nz-1,n,l) |
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| 424 | |
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| 425 | end do |
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| 426 | end do |
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| 427 | !!!$OMP END DO |
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| 428 | !!!$OMP END PARALLEL |
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| 429 | |
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| 430 | ! print*,'end of ww, now clouds, nests' |
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| 431 | !**************************************************************** |
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| 432 | ! Compute slope of eta levels in windward direction and resulting |
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| 433 | ! vertical wind correction |
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| 434 | ! |
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| 435 | ! See notes in verttransform.f about the w correction done here. |
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| 436 | !**************************************************************** |
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| 437 | !write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz^M |
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| 438 | ! create a cloud and rainout/washout field, clouds occur where rh>80%^M |
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| 439 | ! total cloudheight is stored at level 0^M |
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| 440 | |
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| 441 | do 100 jy=0,nyn(l)-1 |
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| 442 | do 100 ix=0,nxn(l)-1 |
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| 443 | ! rain_cloud_above=0 |
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| 444 | lsp=lsprecn(ix,jy,1,n,l) |
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| 445 | convp=convprecn(ix,jy,1,n,l) |
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| 446 | |
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| 447 | ! cloudsh(ix,jy,n)=0 |
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| 448 | |
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| 449 | prec=lsp+convp |
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| 450 | if (lsp.gt.convp) then ! prectype='lsp' |
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| 451 | lconvectprec = .false. |
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| 452 | else ! prectype='cp ' |
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| 453 | lconvectprec = .true. |
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| 454 | endif |
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| 455 | rhmin = 0.90 ! standard condition for presence of clouds |
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| 456 | |
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| 457 | !CPS note that original by Sabine Eckhart was 80% |
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| 458 | !CPS however, for T<-20 C we consider saturation over ice |
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| 459 | !CPS so I think 90% should be enough |
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| 460 | |
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| 461 | icloudbotn(ix,jy,n,l)=icmv |
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| 462 | icloudtop=icmv ! this is just a local variable |
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| 463 | 98 do kz=1,nz |
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| 464 | pressure=rhon(ix,jy,kz,n,l)*r_air*ttn(ix,jy,kz,n,l) |
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| 465 | rh=qvn(ix,jy,kz,n,l)/f_qvsat(pressure,ttn(ix,jy,kz,n,l)) |
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| 466 | !cps if (prec.gt.0.01) print*,'relhum',prec,kz,rh,height(kz) |
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| 467 | if (rh .gt. rhmin) then |
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| 468 | if (icloudbotn(ix,jy,n,l) .eq. icmv) then |
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| 469 | icloudbotn(ix,jy,n,l)=nint(height(kz)) |
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| 470 | endif |
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| 471 | icloudtop=nint(height(kz)) ! use int to save memory |
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| 472 | endif |
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| 473 | enddo |
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| 474 | |
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| 475 | !CPS try to get a cloud thicker than 50 m |
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| 476 | !CPS if there is at least .01 mm/h - changed to 0.002 and put into |
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| 477 | !CPS parameter precpmin |
---|
| 478 | if ((icloudbotn(ix,jy,n,l) .eq. icmv .or. & |
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| 479 | icloudtop-icloudbotn(ix,jy,n,l) .lt. 50) .and. & |
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| 480 | prec .gt. precmin) then |
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| 481 | rhmin = rhmin - 0.05 |
---|
| 482 | if (rhmin .ge. 0.30) goto 98 ! give up for <= 25% rel.hum. |
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| 483 | endif |
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| 484 | !CPS implement a rough fix for badly represented convection |
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| 485 | !CPS is based on looking at a limited set of comparison data |
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| 486 | if (lconvectprec .and. icloudtop .lt. 6000 .and. & |
---|
| 487 | prec .gt. precmin) then |
---|
| 488 | if (convp .lt. 0.1) then |
---|
| 489 | icloudbotn(ix,jy,n,l) = 500 |
---|
| 490 | icloudtop = 8000 |
---|
| 491 | else |
---|
| 492 | icloudbotn(ix,jy,n,l) = 0 |
---|
| 493 | icloudtop = 10000 |
---|
| 494 | endif |
---|
| 495 | endif |
---|
| 496 | if (icloudtop .ne. icmv) then |
---|
| 497 | icloudthckn(ix,jy,n,l) = icloudtop-icloudbotn(ix,jy,n,l) |
---|
| 498 | else |
---|
| 499 | icloudthckn(ix,jy,n,l) = icmv |
---|
| 500 | endif |
---|
| 501 | !CPS get rid of too thin clouds |
---|
| 502 | if (icloudthckn(ix,jy,n,l) .lt. 50) then |
---|
| 503 | icloudbotn(ix,jy,n,l)=icmv |
---|
| 504 | icloudthckn(ix,jy,n,l)=icmv |
---|
| 505 | endif |
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| 506 | |
---|
| 507 | 100 continue |
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| 508 | enddo ! nests |
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| 509 | |
---|
| 510 | return |
---|
| 511 | end |
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