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 | |
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24 | subroutine verttransform(n,uuh,vvh,wwh,pvh,divh) |
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25 | ! i i i i i |
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26 | !******************************************************************************* |
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27 | ! * |
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28 | ! This subroutine transforms temperature, dew point temperature and * |
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29 | ! wind components from eta to meter coordinates. * |
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30 | ! The vertical wind component is transformed from Pa/s to m/s using * |
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31 | ! the conversion factor pinmconv. * |
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32 | ! In addition, this routine calculates vertical density gradients * |
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33 | ! needed for the parameterization of the turbulent velocities. * |
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34 | ! * |
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35 | ! Note: This is the FLEXPART_WRF version of subroutine assignland. * |
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36 | ! The computational grid is the WRF x-y grid rather than lat-lon. * |
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37 | ! * |
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38 | ! Author: A. Stohl, G. Wotawa * |
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39 | ! * |
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40 | ! 12 August 1996 * |
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41 | ! Update: 16 January 1998 * |
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42 | ! * |
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43 | ! Major update: 17 February 1999 * |
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44 | ! by G. Wotawa * |
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45 | ! * |
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46 | ! - Vertical levels for u, v and w are put together * |
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47 | ! - Slope correction for vertical velocity: Modification of calculation * |
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48 | ! procedure * |
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49 | ! * |
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50 | ! Changes, Bernd C. Krueger, Feb. 2001: * |
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51 | ! Variables tth and qvh (on eta coordinates) from common block * |
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52 | ! * |
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53 | ! Oct-Nov 2005 - R. Easter - conversion to wrf * |
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54 | ! 17 Nov 2005 - R. Easter - terrain correction applied to ww. There are * |
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55 | ! now 3 options, controlled by "method_w_terrain_correction" * |
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56 | ! * |
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57 | ! 11 June 2007, conversion of tkeh to tke |
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58 | ! 25 June 2007 conversion of ptth to ptt |
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59 | ! Jan 2012, J Brioude: modified to handle different wind options and openmp |
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60 | !******************************************************************************* |
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61 | ! * |
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62 | ! Variables: * |
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63 | ! nx,ny,nz field dimensions in x,y and z direction * |
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64 | ! uu(0:nxmax,0:nymax,nzmax,2) wind components in x-direction [m/s] * |
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65 | ! vv(0:nxmax,0:nymax,nzmax,2) wind components in y-direction [m/s] * |
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66 | ! ww(0:nxmax,0:nymax,nzmax,2) wind components in z-direction [deltaeta/s] * |
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67 | ! tt(0:nxmax,0:nymax,nzmax,2) temperature [K] * |
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68 | ! pv(0:nxmax,0:nymax,nzmax,2) potential voriticity (pvu) * |
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69 | ! ps(0:nxmax,0:nymax,2) surface pressure [Pa] * |
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70 | ! * |
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71 | !******************************************************************************* |
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72 | |
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73 | use par_mod |
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74 | use com_mod |
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75 | ! include 'includepar' |
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76 | ! include 'includecom' |
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77 | |
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78 | implicit none |
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79 | |
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80 | integer :: ix,jy,kz,iz,n,kmin,kl,klp,ix1,jy1,ixp,jyp,ixm,jym |
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81 | ! CDA |
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82 | integer :: icloudtop |
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83 | |
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84 | integer :: method_z_compute,aa |
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85 | real :: uvzlev(nuvzmax),rhoh(nuvzmax),pinmconv(nzmax) |
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86 | real :: ew,pint,tv,tvold,pold,dz1,dz2,dz,ui,vi |
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87 | real :: xlon,ylat,xlonr,dzdx,dzdy |
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88 | real :: dzdx1,dzdx2,dzdy1,dzdy2 |
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89 | real :: uuaux,vvaux,uupolaux,vvpolaux,ddpol,ffpol,wdummy |
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90 | real(kind=4) :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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91 | real(kind=4) :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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92 | real(kind=4) :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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93 | real(kind=4) :: divh(0:nxmax-1,0:nymax-1,nuvzmax) |
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94 | |
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95 | ! real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
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96 | ! real :: divh(0:nxmax-1,0:nymax-1,nuvzmax) |
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97 | real :: div(0:nxmax-1,0:nymax-1,nuvzmax) |
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98 | ! real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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99 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
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100 | ! real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
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101 | real :: wzlev(nwzmax),uvwzlev(0:nxmax-1,0:nymax-1,nzmax) |
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102 | real :: wwh_svaa(nwzmax), wtc_stat(4,nzmax),u,v |
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103 | real,parameter :: const=r_air/ga |
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104 | ! CDA cloud commented |
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105 | ! integer :: rain_cloud_above,kz_inv |
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106 | |
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107 | integer :: kz_inv |
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108 | real :: f_qvsat,pressure |
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109 | ! CDA some new declarations and mods |
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110 | ! real :: rh,lsp,convp |
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111 | real :: rh,lsp,convp,prec,rhmin |
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112 | real,parameter :: precmin = 0.002 |
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113 | |
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114 | |
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115 | |
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116 | logical :: init = .true. |
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117 | ! CDA |
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118 | logical :: lconvectprec = .true. |
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119 | |
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120 | |
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121 | |
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122 | ! set method_w_terrain_correction & method_z_compute |
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123 | method_w_terrain_correction = 20 |
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124 | method_z_compute = 10 |
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125 | aa=0 |
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126 | do iz = 1, nz |
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127 | do ix = 1, 4 |
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128 | wtc_stat(ix,iz) = 0.0 |
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129 | end do |
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130 | end do |
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131 | |
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132 | |
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133 | !************************************************************************* |
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134 | ! If verttransform is called the first time, initialize heights of the * |
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135 | ! z levels in meter. The heights are the heights of model levels, where * |
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136 | ! u,v,T and qv are given, and of the interfaces, where w is given. So, * |
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137 | ! the vertical resolution in the z system is doubled. As reference point,* |
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138 | ! the lower left corner of the grid is used. * |
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139 | ! Unlike in the eta system, no difference between heights for u,v and * |
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140 | ! heights for w exists. * |
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141 | !************************************************************************* |
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142 | |
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143 | if (init) then |
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144 | |
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145 | ! Search for a point with high surface pressure (i.e. not above significant topography) |
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146 | ! Then, use this point to construct a reference z profile, to be used at all times |
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147 | ! |
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148 | ! FLEXPART_WRF - use grid point with highest surface pressure |
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149 | !************************************************************************************** |
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150 | |
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151 | pint = -1.0 |
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152 | ixm = -999888777 |
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153 | jym = -999888777 |
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154 | do jy=0,nymin1 |
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155 | do ix=0,nxmin1 |
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156 | ! if (ps(ix,jy,1,n).gt.100000.) then |
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157 | if (ps(ix,jy,1,n).gt.pint) then |
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158 | pint = ps(ix,jy,1,n) |
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159 | ixm=ix |
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160 | jym=jy |
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161 | ! goto 3 |
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162 | endif |
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163 | enddo |
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164 | enddo |
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165 | 3 continue |
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166 | ! write(*,'(/a,2i4,1pe11.2)') |
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167 | ! & 'verttransform -- ixm,jym,ps() =', ixm, jym, pint |
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168 | |
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169 | |
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170 | tvold=tt2(ixm,jym,1,n)*(1.+0.378*ew(td2(ixm,jym,1,n))/ & |
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171 | ps(ixm,jym,1,n)) |
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172 | pold=ps(ixm,jym,1,n) |
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173 | height(1)=0. |
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174 | |
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175 | do kz=2,nuvz |
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176 | ! use pressure from wrf met file |
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177 | ! pint=akz(kz)+bkz(kz)*ps(ixm,jym,1,n) |
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178 | pint=pph(ixm,jym,kz,n) |
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179 | tv=tth(ixm,jym,kz,n)*(1.+0.608*qvh(ixm,jym,kz,n)) |
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180 | |
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181 | |
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182 | ! NOTE: In FLEXPART versions up to 4.0, the number of model levels was doubled |
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183 | ! upon the transformation to z levels. In order to save computer memory, this is |
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184 | ! not done anymore in the standard version. However, this option can still be |
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185 | ! switched on by replacing the following lines with those below, that are |
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186 | ! currently commented out. |
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187 | ! Note that two more changes are necessary in this subroutine below. |
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188 | ! One change is also necessary in gridcheck.f, and another one in verttransform_nests. |
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189 | !************************************************************************************* |
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190 | |
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191 | if (abs(tv-tvold).gt.0.2) then |
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192 | height(kz)= & |
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193 | height(kz-1)+const*log(pold/pint)* & |
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194 | (tv-tvold)/log(tv/tvold) |
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195 | else |
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196 | height(kz)=height(kz-1)+ & |
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197 | const*log(pold/pint)*tv |
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198 | endif |
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199 | |
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200 | ! |
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201 | ! *** NOTE -- the doubled vertical resolution has not been tested in FLEXPART_WRF |
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202 | ! |
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203 | ! Switch on following lines to use doubled vertical resolution |
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204 | !************************************************************* |
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205 | ! if (abs(tv-tvold).gt.0.2) then |
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206 | ! height((kz-1)*2)= |
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207 | ! + height(max((kz-2)*2,1))+const*log(pold/pint)* |
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208 | ! + (tv-tvold)/log(tv/tvold) |
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209 | ! else |
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210 | ! height((kz-1)*2)=height(max((kz-2)*2,1))+ |
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211 | ! + const*log(pold/pint)*tv |
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212 | ! endif |
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213 | ! End doubled vertical resolution |
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214 | |
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215 | ! FLEXPART_WRF - get height from zzh |
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216 | if (method_z_compute .eq. 10) then |
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217 | if ((add_sfc_level .eq. 1) .and. (kz .eq. 2)) then |
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218 | height(kz) = 0.5*(zzh(ixm,jym, 3,n)+zzh(ixm,jym, 1,n)) & |
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219 | - zzh(ixm,jym,1,n) |
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220 | else |
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221 | height(kz) = 0.5*(zzh(ixm,jym,kz+1,n)+zzh(ixm,jym,kz,n)) & |
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222 | - zzh(ixm,jym,1,n) |
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223 | end if |
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224 | end if |
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225 | |
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226 | tvold=tv |
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227 | pold=pint |
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228 | enddo |
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229 | do kz=1,nz-1 |
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230 | heightmid(kz)=0.5*(height(kz)+height(kz+1)) |
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231 | enddo |
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232 | ! |
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233 | ! *** NOTE -- the doubled vertical resolution has not been tested in FLEXPART_WRF |
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234 | ! |
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235 | ! Switch on following lines to use doubled vertical resolution |
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236 | !************************************************************* |
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237 | ! do 7 kz=3,nz-1,2 |
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238 | ! height(kz)=0.5*(height(kz-1)+height(kz+1)) |
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239 | ! height(nz)=height(nz-1)+height(nz-1)-height(nz-2) |
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240 | ! End doubled vertical resolution |
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241 | |
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242 | |
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243 | ! Determine highest levels that can be within PBL |
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244 | !************************************************ |
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245 | |
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246 | do kz=1,nz |
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247 | if (height(kz).gt.hmixmax) then |
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248 | nmixz=kz |
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249 | goto 9 |
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250 | endif |
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251 | end do |
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252 | 9 continue |
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253 | |
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254 | ! Do not repeat initialization of the Cartesian z grid |
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255 | !***************************************************** |
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256 | |
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257 | init=.false. |
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258 | |
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259 | endif |
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260 | |
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261 | |
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262 | ! Loop over the whole grid |
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263 | !************************* |
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264 | |
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265 | !!!$OMP PARALLEL DEFAULT(SHARED) & |
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266 | !!!$OMP PRIVATE(ix,jy,ixm,jym,tvold,pold,pint,tv,rhoh,uvzlev,wzlev, & |
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267 | !!!$OMP uvwzlev,pinmconv,kz,iz,kmin,dz1,dz2,dz,ix1,jy1,ixp,jyp, & |
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268 | !!!$OMP dzdy,dzdx,aa,u,v,wwh_svaa ) |
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269 | !!!$OMP DO |
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270 | do jy=0,nymin1 |
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271 | do ix=0,nxmin1 |
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272 | tvold=tt2(ix,jy,1,n)*(1.+0.378*ew(td2(ix,jy,1,n))/ & |
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273 | ps(ix,jy,1,n)) |
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274 | pold=ps(ix,jy,1,n) |
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275 | uvzlev(1)=0. |
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276 | wzlev(1)=0. |
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277 | rhoh(1)=pold/(r_air*tvold) |
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278 | |
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279 | |
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280 | ! Compute heights of eta levels |
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281 | !****************************** |
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282 | |
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283 | do kz=2,nuvz |
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284 | ! use pressure from wrf met file |
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285 | ! pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) |
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286 | pint=pph(ix,jy,kz,n) |
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287 | tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n)) |
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288 | rhoh(kz)=pint/(r_air*tv) |
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289 | |
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290 | if (abs(tv-tvold).gt.0.2) then |
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291 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)* & |
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292 | (tv-tvold)/log(tv/tvold) |
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293 | else |
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294 | uvzlev(kz)=uvzlev(kz-1)+const*log(pold/pint)*tv |
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295 | endif |
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296 | |
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297 | tvold=tv |
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298 | pold=pint |
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299 | end do |
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300 | |
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301 | |
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302 | do kz=2,nwz-1 |
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303 | wzlev(kz)=(uvzlev(kz+1)+uvzlev(kz))/2. |
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304 | end do |
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305 | |
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306 | wzlev(nwz)=wzlev(nwz-1)+ & |
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307 | uvzlev(nuvz)-uvzlev(nuvz-1) |
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308 | |
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309 | ! FLEXPART_WRF - get uvzlev & wzlev from zzh |
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310 | if (method_z_compute .eq. 10) then |
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311 | do kz = 2, nuvz |
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312 | if ((add_sfc_level .eq. 1) .and. (kz .eq. 2)) then |
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313 | uvzlev(kz) = 0.5*(zzh(ix,jy, 3,n) + zzh(ix,jy, 1,n)) & |
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314 | - zzh(ix,jy,1,n) |
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315 | else |
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316 | uvzlev(kz) = 0.5*(zzh(ix,jy,kz+1,n) + zzh(ix,jy,kz,n)) & |
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317 | - zzh(ix,jy,1,n) |
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318 | end if |
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319 | end do |
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320 | do kz = 2, nwz |
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321 | wzlev(kz) = zzh(ix,jy,kz+add_sfc_level,n) & |
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322 | - zzh(ix,jy,1,n) |
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323 | end do |
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324 | end if |
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325 | |
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326 | uvwzlev(ix,jy,1)=0.0 |
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327 | do kz=2,nuvz |
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328 | uvwzlev(ix,jy,kz)=uvzlev(kz) |
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329 | end do |
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330 | |
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331 | ! if ((ix .eq. ixm) .and. (jy .eq. jym)) then |
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332 | ! write(*,'(/a)') |
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333 | ! & 'kz, height, uvzlev, wzlev, zzh-zzh(1) at ixm,jym (in km)' |
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334 | ! write(*,'(i3,4f8.3)') (kz, height(kz)*1.0e-3, |
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335 | ! & uvzlev(kz)*1.0e-3, wzlev(kz)*1.0e-3, |
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336 | ! & (zzh(ix,jy,kz,n)-zzh(ix,jy,1,n))*1.0e-3, kz=nz,1,-1) |
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337 | ! ixm = -9 |
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338 | ! end if |
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339 | |
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340 | ! Switch on following lines to use doubled vertical resolution |
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341 | ! Switch off the three lines above. |
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342 | !************************************************************* |
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343 | !22 uvwzlev(ix,jy,(kz-1)*2)=uvzlev(kz) |
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344 | ! do 23 kz=2,nwz |
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345 | !23 uvwzlev(ix,jy,(kz-1)*2+1)=wzlev(kz) |
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346 | ! End doubled vertical resolution |
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347 | |
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348 | ! pinmconv=(h2-h1)/(p2-p1) |
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349 | ! |
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350 | ! in flexpart_ecmwf, pinmconv is used to convert etadot to w |
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351 | ! in FLEXPART_WRF, vertical velocity is already m/s, so pinmconv=1.0 |
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352 | |
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353 | if (wind_option.le.0) then |
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354 | pinmconv(1)=1.0 |
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355 | do kz=2,nz-1 |
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356 | pinmconv(kz)=1.0 |
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357 | enddo |
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358 | pinmconv(nz)=1.0 |
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359 | elseif (wind_option.ge.1) then |
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360 | |
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361 | ! pinmconv(1)=(uvzlev(1+add_sfc_level)-0.) & |
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362 | ! /(eta_u_wrf(1)-1.) |
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363 | pinmconv(1)=(wzlev(2)-0.) & |
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364 | /(eta_w_wrf(2)-1.) |
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365 | do kz=2,nz-1 |
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366 | |
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367 | ! pinmconv(kz)=(uvzlev(kz+add_sfc_level)-uvzlev(kz-1+add_sfc_level)) & |
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368 | ! /(eta_u_wrf(kz)-eta_u_wrf(kz-1)) |
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369 | ! /(pph(ix,jy,kz+add_sfc_level,n)-pph(ix,jy,kz-1+add_sfc_level,n)) & |
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370 | ! *(pph(ix,jy,1,n)-pph(ix,jy,nz,n)) |
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371 | ! *(ps(ix,jy,1,n)-p_top_wrf) |
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372 | |
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373 | pinmconv(kz)=(wzlev(kz+1)-wzlev(kz-1)) & |
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374 | /(eta_w_wrf(kz+1)-eta_w_wrf(kz-1)) |
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375 | enddo |
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376 | |
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377 | pinmconv(nwz)=pinmconv(nwz-1) ! |
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378 | endif |
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379 | ! Levels, where u,v,t and q are given |
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380 | !************************************ |
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381 | |
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382 | uu(ix,jy,1,n)=uuh(ix,jy,1) |
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383 | vv(ix,jy,1,n)=vvh(ix,jy,1) |
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384 | div(ix,jy,1)=divh(ix,jy,1) |
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385 | tt(ix,jy,1,n)=tth(ix,jy,1,n) |
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386 | qv(ix,jy,1,n)=qvh(ix,jy,1,n) |
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387 | pv(ix,jy,1,n)=pvh(ix,jy,1) |
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388 | rho(ix,jy,1,n)=rhoh(1) |
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389 | uu(ix,jy,nz,n)=uuh(ix,jy,nuvz) |
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390 | vv(ix,jy,nz,n)=vvh(ix,jy,nuvz) |
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391 | tt(ix,jy,nz,n)=tth(ix,jy,nuvz,n) |
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392 | qv(ix,jy,nz,n)=qvh(ix,jy,nuvz,n) |
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393 | pv(ix,jy,nz,n)=pvh(ix,jy,nuvz) |
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394 | rho(ix,jy,nz,n)=rhoh(nuvz) |
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395 | tke(ix,jy,1,n)=tkeh(ix,jy,1,n) |
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396 | tke(ix,jy,nz,n)=tkeh(ix,jy,nuvz,n) |
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397 | ptt(ix,jy,1,n)=ptth(ix,jy,1,n) |
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398 | ptt(ix,jy,nz,n)=ptth(ix,jy,nuvz,n) |
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399 | |
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400 | |
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401 | kmin=2 |
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402 | do iz=2,nz-1 |
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403 | do kz=kmin,nuvz |
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404 | if(heightmid(iz).gt.uvzlev(nuvz)) then |
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405 | div(ix,jy,iz)=div(ix,jy,nz) |
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406 | goto 230 |
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407 | endif |
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408 | if ((heightmid(iz).gt.uvzlev(kz-1)).and. & |
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409 | (heightmid(iz).le.uvzlev(kz))) then |
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410 | dz1=heightmid(iz)-uvzlev(kz-1) |
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411 | dz2=uvzlev(kz)-heightmid(iz) |
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412 | dz=dz1+dz2 |
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413 | div(ix,jy,iz)=(divh(ix,jy,kz-1)*dz2+divh(ix,jy,kz)*dz1)/dz |
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414 | kmin=kz |
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415 | goto 230 |
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416 | endif |
---|
417 | end do |
---|
418 | 230 continue |
---|
419 | end do |
---|
420 | |
---|
421 | kmin=2 |
---|
422 | do iz=2,nz-1 |
---|
423 | do kz=kmin,nuvz |
---|
424 | if(height(iz).gt.uvzlev(nuvz)) then |
---|
425 | uu(ix,jy,iz,n)=uu(ix,jy,nz,n) |
---|
426 | vv(ix,jy,iz,n)=vv(ix,jy,nz,n) |
---|
427 | tt(ix,jy,iz,n)=tt(ix,jy,nz,n) |
---|
428 | qv(ix,jy,iz,n)=qv(ix,jy,nz,n) |
---|
429 | pv(ix,jy,iz,n)=pv(ix,jy,nz,n) |
---|
430 | rho(ix,jy,iz,n)=rho(ix,jy,nz,n) |
---|
431 | tke(ix,jy,iz,n)=tke(ix,jy,nz,n) |
---|
432 | ptt(ix,jy,iz,n)=ptt(ix,jy,nz,n) |
---|
433 | |
---|
434 | goto 30 |
---|
435 | endif |
---|
436 | if ((height(iz).gt.uvzlev(kz-1)).and. & |
---|
437 | (height(iz).le.uvzlev(kz))) then |
---|
438 | dz1=height(iz)-uvzlev(kz-1) |
---|
439 | dz2=uvzlev(kz)-height(iz) |
---|
440 | dz=dz1+dz2 |
---|
441 | uu(ix,jy,iz,n)=(uuh(ix,jy,kz-1)*dz2+uuh(ix,jy,kz)*dz1)/dz |
---|
442 | vv(ix,jy,iz,n)=(vvh(ix,jy,kz-1)*dz2+vvh(ix,jy,kz)*dz1)/dz |
---|
443 | tt(ix,jy,iz,n)=(tth(ix,jy,kz-1,n)*dz2 & |
---|
444 | +tth(ix,jy,kz,n)*dz1)/dz |
---|
445 | qv(ix,jy,iz,n)=(qvh(ix,jy,kz-1,n)*dz2 & |
---|
446 | +qvh(ix,jy,kz,n)*dz1)/dz |
---|
447 | pv(ix,jy,iz,n)=(pvh(ix,jy,kz-1)*dz2+pvh(ix,jy,kz)*dz1)/dz |
---|
448 | rho(ix,jy,iz,n)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
---|
449 | tke(ix,jy,iz,n)=(tkeh(ix,jy,kz-1,n)*dz2 & |
---|
450 | +tkeh(ix,jy,kz,n)*dz1)/dz |
---|
451 | ptt(ix,jy,iz,n)=(ptth(ix,jy,kz-1,n)*dz2 & |
---|
452 | +ptth(ix,jy,kz,n)*dz1)/dz |
---|
453 | |
---|
454 | |
---|
455 | kmin=kz |
---|
456 | goto 30 |
---|
457 | endif |
---|
458 | end do |
---|
459 | 30 continue |
---|
460 | end do |
---|
461 | |
---|
462 | |
---|
463 | ! Levels, where w is given |
---|
464 | !************************* |
---|
465 | |
---|
466 | ! ww(ix,jy,1,n)=wwh(ix,jy,1)*pinmconv(1) |
---|
467 | ! ww(ix,jy,nz,n)=wwh(ix,jy,nwz)*pinmconv(nz) |
---|
468 | ! kmin=2 |
---|
469 | ! do iz=2,nz |
---|
470 | ! do kz=kmin,nwz |
---|
471 | ! if ((height(iz).gt.wzlev(kz-1)).and. & |
---|
472 | ! (height(iz).le.wzlev(kz))) then |
---|
473 | ! dz1=height(iz)-wzlev(kz-1) |
---|
474 | ! dz2=wzlev(kz)-height(iz) |
---|
475 | ! dz=dz1+dz2 |
---|
476 | !! ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*dz2*pinmconv(kz-1) |
---|
477 | !! + +wwh(ix,jy,kz)*dz1*pinmconv(kz))/dz |
---|
478 | ! kmin=kz |
---|
479 | ! goto 40 |
---|
480 | ! endif |
---|
481 | ! end do |
---|
482 | !40 continue |
---|
483 | ! end do |
---|
484 | |
---|
485 | if (method_w_terrain_correction .eq. 20) then |
---|
486 | ! apply w correction assuming that the WRF w is "absolute w"; |
---|
487 | ! apply it here to wwh; set wwh=0 at iz=1 |
---|
488 | ! do iz = 1, nz |
---|
489 | ! wtc_stat(1,iz) = wtc_stat(1,iz) + ww(ix,jy,iz,n) |
---|
490 | ! wtc_stat(2,iz) = wtc_stat(2,iz) + abs(ww(ix,jy,iz,n)) |
---|
491 | ! end do |
---|
492 | |
---|
493 | ! if ((ix.eq.0) .and. (jy.eq.0)) write(*,*) |
---|
494 | ! & 'verttransform doing method_w_terrain_correction =', |
---|
495 | ! & method_w_terrain_correction |
---|
496 | ix1 = max( ix-1, 0 ) |
---|
497 | jy1 = max( jy-1, 0 ) |
---|
498 | ixp = min( ix+1, nx-1 ) |
---|
499 | jyp = min( jy+1, ny-1 ) |
---|
500 | if (wind_option.eq.0) then |
---|
501 | dzdx=(oro(ixp,jy) - oro(ix1,jy))/(dx*(ixp-ix1)*m_x(ix,jy,1)) |
---|
502 | dzdy=(oro(ix,jyp) - oro(ix,jy1))/(dy*(jyp-jy1)*m_y(ix,jy,1)) |
---|
503 | do kz = 1, nwz-1 |
---|
504 | wwh_svaa(kz) = wwh(ix,jy,kz) |
---|
505 | wwh(ix,jy,kz) = wwh(ix,jy,kz)*pinmconv(kz) & |
---|
506 | ! wwh(ix,jy,kz) = |
---|
507 | - (uuh(ix,jy,kz)*dzdx + vvh(ix,jy,kz)*dzdy) !this is correct. term of variation of geopot not necessary |
---|
508 | |
---|
509 | if (kz .eq. 1) wwh(ix,jy,kz) = 0.0 |
---|
510 | aa=aa+1 |
---|
511 | end do |
---|
512 | elseif (wind_option.ge.1) then |
---|
513 | do kz = 2, nwz-1 |
---|
514 | wwh_svaa(kz) = wwh(ix,jy,kz) |
---|
515 | ! dzdx=(zzh(ixp,jy,kz,n) - zzh(ix1,jy,kz,n)) |
---|
516 | ! + /(dx*(ixp-ix1)) |
---|
517 | ! dzdy=(zzh(ix,jyp,kz,n) - zzh(ix,jy1,kz,n)) |
---|
518 | ! + /(dy*(jyp-jy1)) |
---|
519 | ! dzdx=(zzh(ixp,jy,kz,n) - zzh(ix1,jy,kz,n)-zzh(ixp,jy,1,n) & |
---|
520 | ! +zzh(ix1,jy,1,n)) & |
---|
521 | ! /(dx*(ixp-ix1)*m_x(ix,jy,1)) |
---|
522 | ! dzdy=(zzh(ix,jyp,kz,n) - zzh(ix,jy1,kz,n)-zzh(ix,jyp,1,n) & |
---|
523 | ! +zzh(ix,jy1,1,n)) & |
---|
524 | ! /(dy*(jyp-jy1)*m_y(ix,jy,1)) |
---|
525 | |
---|
526 | dzdx=(zzh(ixp,jy,kz+add_sfc_level,n) - zzh(ix1,jy,kz+add_sfc_level,n) & |
---|
527 | -zzh(ixp,jy,1,n)+zzh(ix1,jy,1,n))/(dx*(ixp-ix1)*m_x(ix,jy,1)) |
---|
528 | dzdy=(zzh(ix,jyp,kz+add_sfc_level,n) - zzh(ix,jy1,kz+add_sfc_level,n) & |
---|
529 | -zzh(ix,jyp,1,n)+zzh(ix,jy1,1,n))/(dy*(jyp-jy1)*m_y(ix,jy,1)) |
---|
530 | u=0.5*(uuh(ix,jy,kz+add_sfc_level)+uuh(ix,jy,kz-1+add_sfc_level)) |
---|
531 | v=0.5*(vvh(ix,jy,kz+add_sfc_level)+vvh(ix,jy,kz-1+add_sfc_level)) |
---|
532 | wwh(ix,jy,kz) = wwh(ix,jy,kz)*pinmconv(kz) & |
---|
533 | + (u*dzdx + v*dzdy) ! variation of geopot on sigma is necessary |
---|
534 | |
---|
535 | ! wwh(ix,jy,kz) = wwh(ix,jy,kz)*pinmconv(kz) & |
---|
536 | ! + (uuh(ix,jy,kz)*dzdx + vvh(ix,jy,kz)*dzdy) ! variation of geopot on sigma is necessary |
---|
537 | ! if (kz .eq. 1) wwh(ix,jy,kz) = 0.0 |
---|
538 | if (kz .eq. 1) wwh(ix,jy,kz) = wwh(ix,jy,kz)*pinmconv(kz) |
---|
539 | ! aa=aa+1 |
---|
540 | end do |
---|
541 | endif |
---|
542 | if (wind_option.eq.-1) then |
---|
543 | ! ww(ix,jy,1,n)=wwh(ix,jy,1) |
---|
544 | ww(ix,jy,1,n)=0. |
---|
545 | do iz=2,nz |
---|
546 | ww(ix,jy,iz,n)=ww(ix,jy,iz-1,n)-(height(iz)-height(iz-1))* & |
---|
547 | div(ix,jy,iz-1) |
---|
548 | enddo |
---|
549 | else |
---|
550 | |
---|
551 | ww(ix,jy,1,n)=wwh(ix,jy,1) |
---|
552 | ww(ix,jy,nz,n)=wwh(ix,jy,nwz) |
---|
553 | kmin=2 |
---|
554 | do iz=2,nz |
---|
555 | do kz=kmin,nwz |
---|
556 | if ((height(iz).gt.wzlev(kz-1)).and. & |
---|
557 | (height(iz).le.wzlev(kz))) then |
---|
558 | dz1=height(iz)-wzlev(kz-1) |
---|
559 | dz2=wzlev(kz)-height(iz) |
---|
560 | dz=dz1+dz2 |
---|
561 | ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*dz2 & |
---|
562 | +wwh(ix,jy,kz)*dz1) & |
---|
563 | /dz |
---|
564 | kmin=kz |
---|
565 | goto 4000 |
---|
566 | endif |
---|
567 | end do |
---|
568 | 4000 continue |
---|
569 | end do |
---|
570 | endif |
---|
571 | |
---|
572 | ! do kz = 1, nwz |
---|
573 | ! wwh(ix,jy,kz) = wwh_svaa(kz) |
---|
574 | ! end do |
---|
575 | |
---|
576 | ! do iz = 1, nz |
---|
577 | ! wtc_stat(3,iz) = wtc_stat(3,iz) + ww(ix,jy,iz,n) |
---|
578 | ! wtc_stat(4,iz) = wtc_stat(4,iz) + abs(ww(ix,jy,iz,n)) |
---|
579 | ! end do |
---|
580 | end if |
---|
581 | |
---|
582 | ! Compute density gradients at intermediate levels |
---|
583 | !************************************************* |
---|
584 | |
---|
585 | drhodz(ix,jy,1,n)=(rho(ix,jy,2,n)-rho(ix,jy,1,n))/ & |
---|
586 | (height(2)-height(1)) |
---|
587 | do kz=2,nz-1 |
---|
588 | drhodz(ix,jy,kz,n)=(rho(ix,jy,kz+1,n)-rho(ix,jy,kz-1,n))/ & |
---|
589 | (height(kz+1)-height(kz-1)) |
---|
590 | end do |
---|
591 | |
---|
592 | drhodz(ix,jy,nz,n)=drhodz(ix,jy,nz-1,n) |
---|
593 | |
---|
594 | end do |
---|
595 | end do |
---|
596 | !!!$OMP END DO |
---|
597 | !!!$OMP END PARALLEL |
---|
598 | |
---|
599 | !**************************************************************** |
---|
600 | ! Compute slope of eta levels in windward direction and resulting |
---|
601 | ! vertical wind correction |
---|
602 | ! |
---|
603 | ! The ECMWF model uses a hybrid-pressure vertical coordinate, "eta" |
---|
604 | ! The "eta" coordinate transitions from terrain-following near |
---|
605 | ! the surface to constant pressure in the stratosphere. |
---|
606 | ! The vertical velocities in the ECMWF grib files are "eta_dot" |
---|
607 | ! FLEXPART uses a "height above ground" vertical coordinate |
---|
608 | ! which we will call "hag". |
---|
609 | ! The vertical velocity is uses (in ww array) is "hag_dot". |
---|
610 | ! Converting from eta_dot to hag_dot involves |
---|
611 | ! >> multiplying by pinmconv = [d(hag)/d(eta)] |
---|
612 | ! >> adding a term that accounts for the fact that |
---|
613 | ! "eta" varies on constant "hag" surfaces. |
---|
614 | ! This term is [u*d(hag)/dx + v*d(hag)/dy], with the |
---|
615 | ! partial derivatives taken with "eta" being constant |
---|
616 | ! |
---|
617 | ! The WRF model uses a similar (to ECMWF) vertical coordinate. |
---|
618 | ! HOWEVER, the vertical velocities in the WRF output files |
---|
619 | ! are the "true/absolute w" in m/s. (Is this true?) |
---|
620 | ! Converting from "absolute w" to hag_dot involves |
---|
621 | ! adding a term that accounts for the fact that |
---|
622 | ! "absolute z" varies on constant "hag" surfaces. |
---|
623 | ! This term is [- u*d(oro)/dx - v*d(oro)/dy] |
---|
624 | ! |
---|
625 | ! The FLEXPART code did not apply the terrain corrections |
---|
626 | ! at jy=0 & ny-1; ix=0 & nx-1; iz=1 & nz. |
---|
627 | ! FLEXPART_WRF applies the correction at all grid points |
---|
628 | !**************************************************************** |
---|
629 | |
---|
630 | |
---|
631 | ! If north pole is in the domain, calculate wind velocities in polar |
---|
632 | ! stereographic coordinates |
---|
633 | !******************************************************************* |
---|
634 | |
---|
635 | if (nglobal) then |
---|
636 | write(*,*) |
---|
637 | write(*,*) '*** stopping in verttransform ***' |
---|
638 | write(*,*) ' the nglobal code section should not be active' |
---|
639 | write(*,*) |
---|
640 | stop |
---|
641 | ! do 74 jy=int(switchnorthg)-2,nymin1 |
---|
642 | ! ylat=ylat0+real(jy)*dy |
---|
643 | ! do 74 ix=0,nxmin1 |
---|
644 | ! xlon=xlon0+real(ix)*dx |
---|
645 | ! do 74 iz=1,nz |
---|
646 | !74 call cc2gll(northpolemap,ylat,xlon,uu(ix,jy,iz,n), |
---|
647 | ! + vv(ix,jy,iz,n),uupol(ix,jy,iz,n), |
---|
648 | ! + vvpol(ix,jy,iz,n)) |
---|
649 | ! |
---|
650 | ! |
---|
651 | ! do 76 iz=1,nz |
---|
652 | ! |
---|
653 | !* CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
---|
654 | ! xlon=xlon0+real(nx/2-1)*dx |
---|
655 | ! xlonr=xlon*pi/180. |
---|
656 | ! ffpol=sqrt(uu(nx/2-1,nymin1,iz,n)**2+ |
---|
657 | ! & vv(nx/2-1,nymin1,iz,n)**2) |
---|
658 | ! if(vv(nx/2-1,nymin1,iz,n).lt.0.) then |
---|
659 | ! ddpol=atan(uu(nx/2-1,nymin1,iz,n)/ |
---|
660 | ! & vv(nx/2-1,nymin1,iz,n))-xlonr |
---|
661 | ! else |
---|
662 | ! ddpol=pi+atan(uu(nx/2-1,nymin1,iz,n)/ |
---|
663 | ! & vv(nx/2-1,nymin1,iz,n))-xlonr |
---|
664 | ! endif |
---|
665 | ! if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
---|
666 | ! if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
---|
667 | ! |
---|
668 | !* CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
---|
669 | ! xlon=180.0 |
---|
670 | ! xlonr=xlon*pi/180. |
---|
671 | ! ylat=90.0 |
---|
672 | ! uuaux=-ffpol*sin(xlonr+ddpol) |
---|
673 | ! vvaux=-ffpol*cos(xlonr+ddpol) |
---|
674 | ! call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux, |
---|
675 | ! + vvpolaux) |
---|
676 | ! |
---|
677 | ! jy=nymin1 |
---|
678 | ! do 76 ix=0,nxmin1 |
---|
679 | ! uupol(ix,jy,iz,n)=uupolaux |
---|
680 | ! vvpol(ix,jy,iz,n)=vvpolaux |
---|
681 | !76 continue |
---|
682 | ! |
---|
683 | ! |
---|
684 | !* Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
685 | !* ward parallel of latitude |
---|
686 | ! |
---|
687 | ! do 85 iz=1,nz |
---|
688 | ! wdummy=0. |
---|
689 | ! jy=ny-2 |
---|
690 | ! do 80 ix=0,nxmin1 |
---|
691 | !80 wdummy=wdummy+ww(ix,jy,iz,n) |
---|
692 | ! wdummy=wdummy/real(nx) |
---|
693 | ! jy=nymin1 |
---|
694 | ! do 85 ix=0,nxmin1 |
---|
695 | !85 ww(ix,jy,iz,n)=wdummy |
---|
696 | |
---|
697 | endif |
---|
698 | |
---|
699 | |
---|
700 | ! If south pole is in the domain, calculate wind velocities in polar |
---|
701 | ! stereographic coordinates |
---|
702 | !******************************************************************* |
---|
703 | |
---|
704 | if (sglobal) then |
---|
705 | write(*,*) |
---|
706 | write(*,*) '*** stopping in verttransform ***' |
---|
707 | write(*,*) ' the sglobal code section should not be active' |
---|
708 | write(*,*) |
---|
709 | stop |
---|
710 | ! do 77 jy=0,int(switchsouthg)+3 |
---|
711 | ! ylat=ylat0+real(jy)*dy |
---|
712 | ! do 77 ix=0,nxmin1 |
---|
713 | ! xlon=xlon0+real(ix)*dx |
---|
714 | ! do 77 iz=1,nz |
---|
715 | !77 call cc2gll(southpolemap,ylat,xlon,uu(ix,jy,iz,n), |
---|
716 | ! + vv(ix,jy,iz,n),uupol(ix,jy,iz,n), |
---|
717 | ! + vvpol(ix,jy,iz,n)) |
---|
718 | ! |
---|
719 | ! do 79 iz=1,nz |
---|
720 | ! |
---|
721 | !* CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
---|
722 | ! xlon=xlon0+real(nx/2-1)*dx |
---|
723 | ! xlonr=xlon*pi/180. |
---|
724 | ! ffpol=sqrt(uu(nx/2-1,0,iz,n)**2+ |
---|
725 | ! & vv(nx/2-1,0,iz,n)**2) |
---|
726 | ! if(vv(nx/2-1,0,iz,n).lt.0.) then |
---|
727 | ! ddpol=atan(uu(nx/2-1,0,iz,n)/ |
---|
728 | ! & vv(nx/2-1,0,iz,n))+xlonr |
---|
729 | ! else |
---|
730 | ! ddpol=pi+atan(uu(nx/2-1,0,iz,n)/ |
---|
731 | ! & vv(nx/2-1,0,iz,n))+xlonr |
---|
732 | ! endif |
---|
733 | ! if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
---|
734 | ! if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
---|
735 | ! |
---|
736 | !* CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
---|
737 | ! xlon=180.0 |
---|
738 | ! xlonr=xlon*pi/180. |
---|
739 | ! ylat=-90.0 |
---|
740 | ! uuaux=+ffpol*sin(xlonr-ddpol) |
---|
741 | ! vvaux=-ffpol*cos(xlonr-ddpol) |
---|
742 | ! call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux, |
---|
743 | ! + vvpolaux) |
---|
744 | ! |
---|
745 | ! jy=0 |
---|
746 | ! do 79 ix=0,nxmin1 |
---|
747 | ! uupol(ix,jy,iz,n)=uupolaux |
---|
748 | !79 vvpol(ix,jy,iz,n)=vvpolaux |
---|
749 | ! |
---|
750 | ! |
---|
751 | !* Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
752 | !* ward parallel of latitude |
---|
753 | ! |
---|
754 | ! do 95 iz=1,nz |
---|
755 | ! wdummy=0. |
---|
756 | ! jy=1 |
---|
757 | ! do 90 ix=0,nxmin1 |
---|
758 | !90 wdummy=wdummy+ww(ix,jy,iz,n) |
---|
759 | ! wdummy=wdummy/real(nx) |
---|
760 | ! jy=0 |
---|
761 | ! do 95 ix=0,nxmin1 |
---|
762 | !95 ww(ix,jy,iz,n)=wdummy |
---|
763 | endif |
---|
764 | |
---|
765 | !write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz^M |
---|
766 | ! create a cloud and rainout/washout field, clouds occur where rh>80%^M |
---|
767 | ! total cloudheight is stored at level 0^M |
---|
768 | do 100 jy=0,nymin1 |
---|
769 | do 100 ix=0,nxmin1 |
---|
770 | ! rain_cloud_above=0 |
---|
771 | lsp=lsprec(ix,jy,1,n) |
---|
772 | convp=convprec(ix,jy,1,n) |
---|
773 | ! cloudsh(ix,jy,n)=0 |
---|
774 | |
---|
775 | prec=lsp+convp |
---|
776 | if (lsp.gt.convp) then ! prectype='lsp' |
---|
777 | lconvectprec = .false. |
---|
778 | else ! prectype='cp ' |
---|
779 | lconvectprec = .true. |
---|
780 | endif |
---|
781 | rhmin = 0.90 ! standard condition for presence of clouds |
---|
782 | |
---|
783 | !CPS note that original by Sabine Eckhart was 80% |
---|
784 | !CPS however, for T<-20 C we consider saturation over ice |
---|
785 | !CPS so I think 90% should be enough |
---|
786 | |
---|
787 | |
---|
788 | icloudbot(ix,jy,n)=icmv |
---|
789 | icloudtop=icmv ! this is just a local variable |
---|
790 | 98 do kz=1,nz |
---|
791 | pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
792 | rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
793 | !cps if (prec.gt.0.01) print*,'relhum',prec,kz,rh,height(kz) |
---|
794 | if (rh .gt. rhmin) then |
---|
795 | if (icloudbot(ix,jy,n) .eq. icmv) then |
---|
796 | icloudbot(ix,jy,n)=nint(height(kz)) |
---|
797 | endif |
---|
798 | icloudtop=nint(height(kz)) ! use int to save memory |
---|
799 | endif |
---|
800 | enddo |
---|
801 | |
---|
802 | |
---|
803 | !CPS try to get a cloud thicker than 50 m |
---|
804 | !CPS if there is at least .01 mm/h - changed to 0.002 and put into |
---|
805 | !CPS parameter precpmin |
---|
806 | if ((icloudbot(ix,jy,n) .eq. icmv .or. & |
---|
807 | icloudtop-icloudbot(ix,jy,n) .lt. 50) .and. & |
---|
808 | prec .gt. precmin) then |
---|
809 | rhmin = rhmin - 0.05 |
---|
810 | if (rhmin .ge. 0.30) goto 98 ! give up for <= 25% rel.hum. |
---|
811 | endif |
---|
812 | !CPS implement a rough fix for badly represented convection |
---|
813 | !CPS is based on looking at a limited set of comparison data |
---|
814 | if (lconvectprec .and. icloudtop .lt. 6000 .and. & |
---|
815 | prec .gt. precmin) then |
---|
816 | if (convp .lt. 0.1) then |
---|
817 | icloudbot(ix,jy,n) = 500 |
---|
818 | icloudtop = 8000 |
---|
819 | else |
---|
820 | icloudbot(ix,jy,n) = 0 |
---|
821 | icloudtop = 10000 |
---|
822 | endif |
---|
823 | endif |
---|
824 | if (icloudtop .ne. icmv) then |
---|
825 | icloudthck(ix,jy,n) = icloudtop-icloudbot(ix,jy,n) |
---|
826 | else |
---|
827 | icloudthck(ix,jy,n) = icmv |
---|
828 | endif |
---|
829 | !CPS get rid of too thin clouds |
---|
830 | if (icloudthck(ix,jy,n) .lt. 50) then |
---|
831 | icloudbot(ix,jy,n)=icmv |
---|
832 | icloudthck(ix,jy,n)=icmv |
---|
833 | endif |
---|
834 | |
---|
835 | 100 continue |
---|
836 | |
---|
837 | |
---|
838 | |
---|
839 | |
---|
840 | |
---|
841 | |
---|
842 | ! do kz_inv=1,nz-1 |
---|
843 | ! kz=nz-kz_inv+1 |
---|
844 | ! pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
845 | ! rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
846 | ! clouds(ix,jy,kz,n)=0 |
---|
847 | ! if (rh.gt.0.8) then ! in cloud |
---|
848 | ! if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
---|
849 | ! rain_cloud_above=1 |
---|
850 | ! cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+ & |
---|
851 | ! height(kz)-height(kz-1) |
---|
852 | ! if (lsp.ge.convp) then |
---|
853 | ! clouds(ix,jy,kz,n)=3 ! lsp dominated rainout |
---|
854 | ! else |
---|
855 | ! clouds(ix,jy,kz,n)=2 ! convp dominated rainout |
---|
856 | ! endif |
---|
857 | ! else ! no precipitation |
---|
858 | ! clouds(ix,jy,kz,n)=1 ! cloud |
---|
859 | ! endif |
---|
860 | ! else ! no cloud |
---|
861 | ! if (rain_cloud_above.eq.1) then ! scavenging |
---|
862 | ! if (lsp.ge.convp) then |
---|
863 | ! clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
---|
864 | ! else |
---|
865 | ! clouds(ix,jy,kz,n)=4 ! convp dominated washout |
---|
866 | ! endif |
---|
867 | ! endif |
---|
868 | ! endif |
---|
869 | ! end do |
---|
870 | ! end do |
---|
871 | ! end do |
---|
872 | |
---|
873 | |
---|
874 | end subroutine verttransform |
---|