[92fab65] | 1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
---|
| 2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
---|
[332fbbd] | 3 | |
---|
[6ecb30a] | 4 | subroutine verttransform_gfs(n,uuh,vvh,wwh,pvh) |
---|
[4fbe7a5] | 5 | ! i i i i i |
---|
[e200b7a] | 6 | !***************************************************************************** |
---|
| 7 | ! * |
---|
| 8 | ! This subroutine transforms temperature, dew point temperature and * |
---|
| 9 | ! wind components from eta to meter coordinates. * |
---|
| 10 | ! The vertical wind component is transformed from Pa/s to m/s using * |
---|
| 11 | ! the conversion factor pinmconv. * |
---|
| 12 | ! In addition, this routine calculates vertical density gradients * |
---|
| 13 | ! needed for the parameterization of the turbulent velocities. * |
---|
| 14 | ! * |
---|
| 15 | ! Author: A. Stohl, G. Wotawa * |
---|
| 16 | ! * |
---|
| 17 | ! 12 August 1996 * |
---|
| 18 | ! Update: 16 January 1998 * |
---|
| 19 | ! * |
---|
| 20 | ! Major update: 17 February 1999 * |
---|
| 21 | ! by G. Wotawa * |
---|
| 22 | ! CHANGE 17/11/2005 Caroline Forster, NCEP GFS version * |
---|
| 23 | ! * |
---|
| 24 | ! - Vertical levels for u, v and w are put together * |
---|
| 25 | ! - Slope correction for vertical velocity: Modification of calculation * |
---|
| 26 | ! procedure * |
---|
| 27 | ! * |
---|
| 28 | !***************************************************************************** |
---|
| 29 | ! Changes, Bernd C. Krueger, Feb. 2001: |
---|
| 30 | ! Variables tth and qvh (on eta coordinates) from common block |
---|
[6ecb30a] | 31 | ! |
---|
| 32 | ! Unified ECMWF and GFS builds |
---|
| 33 | ! Marian Harustak, 12.5.2017 |
---|
| 34 | ! - Renamed routine from verttransform to verttransform_gfs |
---|
| 35 | ! |
---|
[e200b7a] | 36 | !***************************************************************************** |
---|
| 37 | ! * |
---|
| 38 | ! Variables: * |
---|
| 39 | ! nx,ny,nz field dimensions in x,y and z direction * |
---|
| 40 | ! uu(0:nxmax,0:nymax,nzmax,2) wind components in x-direction [m/s] * |
---|
| 41 | ! vv(0:nxmax,0:nymax,nzmax,2) wind components in y-direction [m/s] * |
---|
| 42 | ! ww(0:nxmax,0:nymax,nzmax,2) wind components in z-direction [deltaeta/s]* |
---|
| 43 | ! tt(0:nxmax,0:nymax,nzmax,2) temperature [K] * |
---|
| 44 | ! pv(0:nxmax,0:nymax,nzmax,2) potential voriticity (pvu) * |
---|
| 45 | ! ps(0:nxmax,0:nymax,2) surface pressure [Pa] * |
---|
| 46 | ! clouds(0:nxmax,0:nymax,0:nzmax,2) cloud field for wet deposition * |
---|
| 47 | ! * |
---|
| 48 | !***************************************************************************** |
---|
| 49 | |
---|
| 50 | use par_mod |
---|
| 51 | use com_mod |
---|
| 52 | use cmapf_mod |
---|
| 53 | |
---|
| 54 | implicit none |
---|
| 55 | |
---|
| 56 | integer :: ix,jy,kz,iz,n,kmin,kl,klp,ix1,jy1,ixp,jyp,ixm,jym |
---|
| 57 | integer :: rain_cloud_above,kz_inv |
---|
| 58 | real :: f_qvsat,pressure |
---|
[db91eb7] | 59 | real :: rh,lsp,cloudh_min,convp,prec |
---|
[4fbe7a5] | 60 | real :: rhoh(nuvzmax),pinmconv(nzmax) |
---|
[e200b7a] | 61 | real :: ew,pint,tv,tvold,pold,dz1,dz2,dz,ui,vi |
---|
| 62 | real :: xlon,ylat,xlonr,dzdx,dzdy |
---|
[4fbe7a5] | 63 | real :: dzdx1,dzdx2,dzdy1,dzdy2,cosf |
---|
[e200b7a] | 64 | real :: uuaux,vvaux,uupolaux,vvpolaux,ddpol,ffpol,wdummy |
---|
| 65 | real :: uuh(0:nxmax-1,0:nymax-1,nuvzmax) |
---|
| 66 | real :: vvh(0:nxmax-1,0:nymax-1,nuvzmax) |
---|
| 67 | real :: pvh(0:nxmax-1,0:nymax-1,nuvzmax) |
---|
| 68 | real :: wwh(0:nxmax-1,0:nymax-1,nwzmax) |
---|
| 69 | real :: wzlev(nwzmax),uvwzlev(0:nxmax-1,0:nymax-1,nzmax) |
---|
| 70 | real,parameter :: const=r_air/ga |
---|
| 71 | |
---|
| 72 | ! NCEP version |
---|
| 73 | integer :: llev, i |
---|
| 74 | |
---|
| 75 | logical :: init = .true. |
---|
| 76 | |
---|
| 77 | |
---|
| 78 | !************************************************************************* |
---|
| 79 | ! If verttransform is called the first time, initialize heights of the * |
---|
| 80 | ! z levels in meter. The heights are the heights of model levels, where * |
---|
[4fbe7a5] | 81 | ! u,v,T and qv are given. * |
---|
[e200b7a] | 82 | !************************************************************************* |
---|
| 83 | |
---|
| 84 | if (init) then |
---|
| 85 | |
---|
| 86 | ! Search for a point with high surface pressure (i.e. not above significant topography) |
---|
| 87 | ! Then, use this point to construct a reference z profile, to be used at all times |
---|
| 88 | !***************************************************************************** |
---|
| 89 | |
---|
| 90 | do jy=0,nymin1 |
---|
| 91 | do ix=0,nxmin1 |
---|
| 92 | if (ps(ix,jy,1,n).gt.100000.) then |
---|
| 93 | ixm=ix |
---|
| 94 | jym=jy |
---|
| 95 | goto 3 |
---|
| 96 | endif |
---|
| 97 | end do |
---|
| 98 | end do |
---|
| 99 | 3 continue |
---|
| 100 | |
---|
| 101 | |
---|
| 102 | tvold=tt2(ixm,jym,1,n)*(1.+0.378*ew(td2(ixm,jym,1,n))/ & |
---|
[4fbe7a5] | 103 | ps(ixm,jym,1,n)) |
---|
[e200b7a] | 104 | pold=ps(ixm,jym,1,n) |
---|
| 105 | height(1)=0. |
---|
| 106 | |
---|
| 107 | do kz=2,nuvz |
---|
| 108 | pint=akz(kz)+bkz(kz)*ps(ixm,jym,1,n) |
---|
| 109 | tv=tth(ixm,jym,kz,n)*(1.+0.608*qvh(ixm,jym,kz,n)) |
---|
| 110 | |
---|
| 111 | if (abs(tv-tvold).gt.0.2) then |
---|
[4fbe7a5] | 112 | height(kz)=height(kz-1)+const*log(pold/pint)* & |
---|
| 113 | (tv-tvold)/log(tv/tvold) |
---|
[e200b7a] | 114 | else |
---|
[4fbe7a5] | 115 | height(kz)=height(kz-1)+const*log(pold/pint)*tv |
---|
[e200b7a] | 116 | endif |
---|
| 117 | |
---|
| 118 | tvold=tv |
---|
| 119 | pold=pint |
---|
| 120 | end do |
---|
| 121 | |
---|
| 122 | |
---|
| 123 | ! Determine highest levels that can be within PBL |
---|
| 124 | !************************************************ |
---|
| 125 | |
---|
| 126 | do kz=1,nz |
---|
| 127 | if (height(kz).gt.hmixmax) then |
---|
| 128 | nmixz=kz |
---|
| 129 | goto 9 |
---|
| 130 | endif |
---|
| 131 | end do |
---|
| 132 | 9 continue |
---|
| 133 | |
---|
| 134 | ! Do not repeat initialization of the Cartesian z grid |
---|
| 135 | !***************************************************** |
---|
| 136 | |
---|
| 137 | init=.false. |
---|
| 138 | |
---|
| 139 | endif |
---|
| 140 | |
---|
| 141 | |
---|
| 142 | ! Loop over the whole grid |
---|
| 143 | !************************* |
---|
| 144 | |
---|
| 145 | do jy=0,nymin1 |
---|
| 146 | do ix=0,nxmin1 |
---|
| 147 | |
---|
| 148 | ! NCEP version: find first level above ground |
---|
| 149 | llev = 0 |
---|
| 150 | do i=1,nuvz |
---|
[4fbe7a5] | 151 | if (ps(ix,jy,1,n).lt.akz(i)) llev=i |
---|
[e200b7a] | 152 | end do |
---|
| 153 | llev = llev+1 |
---|
| 154 | if (llev.gt.nuvz-2) llev = nuvz-2 |
---|
| 155 | ! if (llev.eq.nuvz-2) write(*,*) 'verttransform |
---|
| 156 | ! +WARNING: LLEV eq NUZV-2' |
---|
| 157 | ! NCEP version |
---|
| 158 | |
---|
| 159 | |
---|
| 160 | ! compute height of pressure levels above ground |
---|
| 161 | !*********************************************** |
---|
| 162 | |
---|
| 163 | tvold=tth(ix,jy,llev,n)*(1.+0.608*qvh(ix,jy,llev,n)) |
---|
| 164 | pold=akz(llev) |
---|
| 165 | wzlev(llev)=0. |
---|
| 166 | uvwzlev(ix,jy,llev)=0. |
---|
| 167 | rhoh(llev)=pold/(r_air*tvold) |
---|
| 168 | |
---|
| 169 | do kz=llev+1,nuvz |
---|
| 170 | pint=akz(kz)+bkz(kz)*ps(ix,jy,1,n) |
---|
| 171 | tv=tth(ix,jy,kz,n)*(1.+0.608*qvh(ix,jy,kz,n)) |
---|
| 172 | rhoh(kz)=pint/(r_air*tv) |
---|
| 173 | |
---|
| 174 | if (abs(tv-tvold).gt.0.2) then |
---|
[4fbe7a5] | 175 | uvwzlev(ix,jy,kz)=uvwzlev(ix,jy,kz-1)+const*log(pold/pint)* & |
---|
| 176 | (tv-tvold)/log(tv/tvold) |
---|
[e200b7a] | 177 | else |
---|
[4fbe7a5] | 178 | uvwzlev(ix,jy,kz)=uvwzlev(ix,jy,kz-1)+const*log(pold/pint)*tv |
---|
[e200b7a] | 179 | endif |
---|
[4fbe7a5] | 180 | wzlev(kz)=uvwzlev(ix,jy,kz) |
---|
[e200b7a] | 181 | |
---|
| 182 | tvold=tv |
---|
| 183 | pold=pint |
---|
| 184 | end do |
---|
| 185 | |
---|
| 186 | ! pinmconv=(h2-h1)/(p2-p1) |
---|
| 187 | |
---|
| 188 | pinmconv(llev)=(uvwzlev(ix,jy,llev+1)-uvwzlev(ix,jy,llev))/ & |
---|
| 189 | ((aknew(llev+1)+bknew(llev+1)*ps(ix,jy,1,n))- & |
---|
| 190 | (aknew(llev)+bknew(llev)*ps(ix,jy,1,n))) |
---|
| 191 | do kz=llev+1,nz-1 |
---|
| 192 | pinmconv(kz)=(uvwzlev(ix,jy,kz+1)-uvwzlev(ix,jy,kz-1))/ & |
---|
| 193 | ((aknew(kz+1)+bknew(kz+1)*ps(ix,jy,1,n))- & |
---|
| 194 | (aknew(kz-1)+bknew(kz-1)*ps(ix,jy,1,n))) |
---|
| 195 | end do |
---|
| 196 | pinmconv(nz)=(uvwzlev(ix,jy,nz)-uvwzlev(ix,jy,nz-1))/ & |
---|
| 197 | ((aknew(nz)+bknew(nz)*ps(ix,jy,1,n))- & |
---|
| 198 | (aknew(nz-1)+bknew(nz-1)*ps(ix,jy,1,n))) |
---|
| 199 | |
---|
| 200 | |
---|
| 201 | ! Levels, where u,v,t and q are given |
---|
| 202 | !************************************ |
---|
| 203 | |
---|
| 204 | uu(ix,jy,1,n)=uuh(ix,jy,llev) |
---|
| 205 | vv(ix,jy,1,n)=vvh(ix,jy,llev) |
---|
| 206 | tt(ix,jy,1,n)=tth(ix,jy,llev,n) |
---|
| 207 | qv(ix,jy,1,n)=qvh(ix,jy,llev,n) |
---|
[db91eb7] | 208 | ! IP & SEC, 201812 add clouds |
---|
| 209 | if (readclouds) then |
---|
| 210 | clwc(ix,jy,1,n)=clwch(ix,jy,llev,n) |
---|
| 211 | endif |
---|
[e200b7a] | 212 | pv(ix,jy,1,n)=pvh(ix,jy,llev) |
---|
| 213 | rho(ix,jy,1,n)=rhoh(llev) |
---|
| 214 | pplev(ix,jy,1,n)=akz(llev) |
---|
| 215 | uu(ix,jy,nz,n)=uuh(ix,jy,nuvz) |
---|
| 216 | vv(ix,jy,nz,n)=vvh(ix,jy,nuvz) |
---|
| 217 | tt(ix,jy,nz,n)=tth(ix,jy,nuvz,n) |
---|
| 218 | qv(ix,jy,nz,n)=qvh(ix,jy,nuvz,n) |
---|
[db91eb7] | 219 | ! IP & SEC, 201812 add clouds |
---|
| 220 | if (readclouds) then |
---|
| 221 | clwc(ix,jy,nz,n)=clwch(ix,jy,nuvz,n) |
---|
| 222 | endif |
---|
[e200b7a] | 223 | pv(ix,jy,nz,n)=pvh(ix,jy,nuvz) |
---|
| 224 | rho(ix,jy,nz,n)=rhoh(nuvz) |
---|
| 225 | pplev(ix,jy,nz,n)=akz(nuvz) |
---|
| 226 | kmin=llev+1 |
---|
| 227 | do iz=2,nz-1 |
---|
| 228 | do kz=kmin,nuvz |
---|
[4fbe7a5] | 229 | if(height(iz).gt.uvwzlev(ix,jy,nuvz)) then |
---|
[e200b7a] | 230 | uu(ix,jy,iz,n)=uu(ix,jy,nz,n) |
---|
| 231 | vv(ix,jy,iz,n)=vv(ix,jy,nz,n) |
---|
| 232 | tt(ix,jy,iz,n)=tt(ix,jy,nz,n) |
---|
| 233 | qv(ix,jy,iz,n)=qv(ix,jy,nz,n) |
---|
[db91eb7] | 234 | ! IP & SEC, 201812 add clouds |
---|
| 235 | if (readclouds) then |
---|
| 236 | clwc(ix,jy,iz,n)=clwc(ix,jy,nz,n) |
---|
| 237 | endif |
---|
[e200b7a] | 238 | pv(ix,jy,iz,n)=pv(ix,jy,nz,n) |
---|
| 239 | rho(ix,jy,iz,n)=rho(ix,jy,nz,n) |
---|
| 240 | pplev(ix,jy,iz,n)=pplev(ix,jy,nz,n) |
---|
| 241 | goto 30 |
---|
| 242 | endif |
---|
[4fbe7a5] | 243 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
---|
| 244 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
---|
| 245 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
---|
| 246 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
---|
| 247 | dz=dz1+dz2 |
---|
| 248 | uu(ix,jy,iz,n)=(uuh(ix,jy,kz-1)*dz2+uuh(ix,jy,kz)*dz1)/dz |
---|
| 249 | vv(ix,jy,iz,n)=(vvh(ix,jy,kz-1)*dz2+vvh(ix,jy,kz)*dz1)/dz |
---|
| 250 | tt(ix,jy,iz,n)=(tth(ix,jy,kz-1,n)*dz2 & |
---|
| 251 | +tth(ix,jy,kz,n)*dz1)/dz |
---|
| 252 | qv(ix,jy,iz,n)=(qvh(ix,jy,kz-1,n)*dz2 & |
---|
| 253 | +qvh(ix,jy,kz,n)*dz1)/dz |
---|
[db91eb7] | 254 | ! IP & SEC, 201812 add clouds |
---|
| 255 | if (readclouds) then |
---|
| 256 | clwc(ix,jy,iz,n)=(clwch(ix,jy,kz-1,n)*dz2 & |
---|
| 257 | +clwch(ix,jy,kz,n)*dz1)/dz |
---|
| 258 | endif |
---|
[4fbe7a5] | 259 | pv(ix,jy,iz,n)=(pvh(ix,jy,kz-1)*dz2+pvh(ix,jy,kz)*dz1)/dz |
---|
| 260 | rho(ix,jy,iz,n)=(rhoh(kz-1)*dz2+rhoh(kz)*dz1)/dz |
---|
| 261 | pplev(ix,jy,iz,n)=(akz(kz-1)*dz2+akz(kz)*dz1)/dz |
---|
[e200b7a] | 262 | endif |
---|
| 263 | end do |
---|
| 264 | 30 continue |
---|
| 265 | end do |
---|
| 266 | |
---|
| 267 | |
---|
| 268 | ! Levels, where w is given |
---|
| 269 | !************************* |
---|
| 270 | |
---|
| 271 | ww(ix,jy,1,n)=wwh(ix,jy,llev)*pinmconv(llev) |
---|
| 272 | ww(ix,jy,nz,n)=wwh(ix,jy,nwz)*pinmconv(nz) |
---|
| 273 | kmin=llev+1 |
---|
| 274 | do iz=2,nz |
---|
| 275 | do kz=kmin,nwz |
---|
| 276 | if ((height(iz).gt.wzlev(kz-1)).and. & |
---|
[4fbe7a5] | 277 | (height(iz).le.wzlev(kz))) then |
---|
| 278 | dz1=height(iz)-wzlev(kz-1) |
---|
| 279 | dz2=wzlev(kz)-height(iz) |
---|
| 280 | dz=dz1+dz2 |
---|
| 281 | ww(ix,jy,iz,n)=(wwh(ix,jy,kz-1)*pinmconv(kz-1)*dz2 & |
---|
| 282 | +wwh(ix,jy,kz)*pinmconv(kz)*dz1)/dz |
---|
[e200b7a] | 283 | endif |
---|
| 284 | end do |
---|
| 285 | end do |
---|
| 286 | |
---|
| 287 | |
---|
| 288 | ! Compute density gradients at intermediate levels |
---|
| 289 | !************************************************* |
---|
| 290 | |
---|
| 291 | drhodz(ix,jy,1,n)=(rho(ix,jy,2,n)-rho(ix,jy,1,n))/ & |
---|
| 292 | (height(2)-height(1)) |
---|
| 293 | do kz=2,nz-1 |
---|
| 294 | drhodz(ix,jy,kz,n)=(rho(ix,jy,kz+1,n)-rho(ix,jy,kz-1,n))/ & |
---|
[4fbe7a5] | 295 | (height(kz+1)-height(kz-1)) |
---|
[e200b7a] | 296 | end do |
---|
| 297 | drhodz(ix,jy,nz,n)=drhodz(ix,jy,nz-1,n) |
---|
| 298 | |
---|
| 299 | end do |
---|
| 300 | end do |
---|
| 301 | |
---|
| 302 | |
---|
| 303 | !**************************************************************** |
---|
| 304 | ! Compute slope of eta levels in windward direction and resulting |
---|
| 305 | ! vertical wind correction |
---|
| 306 | !**************************************************************** |
---|
| 307 | |
---|
| 308 | do jy=1,ny-2 |
---|
[4fbe7a5] | 309 | cosf=cos((real(jy)*dy+ylat0)*pi180) |
---|
[e200b7a] | 310 | do ix=1,nx-2 |
---|
| 311 | |
---|
| 312 | ! NCEP version: find first level above ground |
---|
| 313 | llev = 0 |
---|
| 314 | do i=1,nuvz |
---|
| 315 | if (ps(ix,jy,1,n).lt.akz(i)) llev=i |
---|
| 316 | end do |
---|
| 317 | llev = llev+1 |
---|
| 318 | if (llev.gt.nuvz-2) llev = nuvz-2 |
---|
| 319 | ! if (llev.eq.nuvz-2) write(*,*) 'verttransform |
---|
| 320 | ! +WARNING: LLEV eq NUZV-2' |
---|
| 321 | ! NCEP version |
---|
| 322 | |
---|
| 323 | kmin=llev+1 |
---|
| 324 | do iz=2,nz-1 |
---|
| 325 | |
---|
[4fbe7a5] | 326 | ui=uu(ix,jy,iz,n)*dxconst/cosf |
---|
[e200b7a] | 327 | vi=vv(ix,jy,iz,n)*dyconst |
---|
| 328 | |
---|
| 329 | do kz=kmin,nz |
---|
| 330 | if ((height(iz).gt.uvwzlev(ix,jy,kz-1)).and. & |
---|
[4fbe7a5] | 331 | (height(iz).le.uvwzlev(ix,jy,kz))) then |
---|
[e200b7a] | 332 | dz1=height(iz)-uvwzlev(ix,jy,kz-1) |
---|
| 333 | dz2=uvwzlev(ix,jy,kz)-height(iz) |
---|
| 334 | dz=dz1+dz2 |
---|
| 335 | kl=kz-1 |
---|
| 336 | klp=kz |
---|
| 337 | goto 47 |
---|
| 338 | endif |
---|
| 339 | end do |
---|
| 340 | |
---|
| 341 | 47 ix1=ix-1 |
---|
| 342 | jy1=jy-1 |
---|
| 343 | ixp=ix+1 |
---|
| 344 | jyp=jy+1 |
---|
| 345 | |
---|
| 346 | dzdx1=(uvwzlev(ixp,jy,kl)-uvwzlev(ix1,jy,kl))/2. |
---|
| 347 | dzdx2=(uvwzlev(ixp,jy,klp)-uvwzlev(ix1,jy,klp))/2. |
---|
| 348 | dzdx=(dzdx1*dz2+dzdx2*dz1)/dz |
---|
| 349 | |
---|
| 350 | dzdy1=(uvwzlev(ix,jyp,kl)-uvwzlev(ix,jy1,kl))/2. |
---|
| 351 | dzdy2=(uvwzlev(ix,jyp,klp)-uvwzlev(ix,jy1,klp))/2. |
---|
| 352 | dzdy=(dzdy1*dz2+dzdy2*dz1)/dz |
---|
| 353 | |
---|
| 354 | ww(ix,jy,iz,n)=ww(ix,jy,iz,n)+(dzdx*ui+dzdy*vi) |
---|
| 355 | |
---|
| 356 | end do |
---|
| 357 | |
---|
| 358 | end do |
---|
| 359 | end do |
---|
| 360 | |
---|
| 361 | |
---|
| 362 | ! If north pole is in the domain, calculate wind velocities in polar |
---|
| 363 | ! stereographic coordinates |
---|
| 364 | !******************************************************************* |
---|
| 365 | |
---|
| 366 | if (nglobal) then |
---|
| 367 | do jy=int(switchnorthg)-2,nymin1 |
---|
| 368 | ylat=ylat0+real(jy)*dy |
---|
| 369 | do ix=0,nxmin1 |
---|
| 370 | xlon=xlon0+real(ix)*dx |
---|
| 371 | do iz=1,nz |
---|
| 372 | call cc2gll(northpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
---|
| 373 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n), & |
---|
| 374 | vvpol(ix,jy,iz,n)) |
---|
| 375 | end do |
---|
| 376 | end do |
---|
| 377 | end do |
---|
| 378 | |
---|
| 379 | |
---|
| 380 | do iz=1,nz |
---|
| 381 | |
---|
| 382 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
---|
| 383 | xlon=xlon0+real(nx/2-1)*dx |
---|
| 384 | xlonr=xlon*pi/180. |
---|
[4fbe7a5] | 385 | ffpol=sqrt(uu(nx/2-1,nymin1,iz,n)**2+vv(nx/2-1,nymin1,iz,n)**2) |
---|
| 386 | if (vv(nx/2-1,nymin1,iz,n).lt.0.) then |
---|
| 387 | ddpol=atan(uu(nx/2-1,nymin1,iz,n)/vv(nx/2-1,nymin1,iz,n))-xlonr |
---|
[e200b7a] | 388 | elseif (vv(nx/2-1,nymin1,iz,n).gt.0.) then |
---|
| 389 | ddpol=pi+atan(uu(nx/2-1,nymin1,iz,n)/ & |
---|
[4fbe7a5] | 390 | vv(nx/2-1,nymin1,iz,n))-xlonr |
---|
[e200b7a] | 391 | else |
---|
| 392 | ddpol=pi/2-xlonr |
---|
| 393 | endif |
---|
| 394 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
---|
| 395 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
---|
| 396 | |
---|
| 397 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
---|
| 398 | xlon=180.0 |
---|
| 399 | xlonr=xlon*pi/180. |
---|
| 400 | ylat=90.0 |
---|
| 401 | uuaux=-ffpol*sin(xlonr+ddpol) |
---|
| 402 | vvaux=-ffpol*cos(xlonr+ddpol) |
---|
[4fbe7a5] | 403 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux,vvpolaux) |
---|
[e200b7a] | 404 | jy=nymin1 |
---|
| 405 | do ix=0,nxmin1 |
---|
| 406 | uupol(ix,jy,iz,n)=uupolaux |
---|
| 407 | vvpol(ix,jy,iz,n)=vvpolaux |
---|
| 408 | end do |
---|
| 409 | end do |
---|
| 410 | |
---|
| 411 | |
---|
| 412 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
| 413 | ! ward parallel of latitude |
---|
| 414 | |
---|
[4fbe7a5] | 415 | do iz=1,nz |
---|
[e200b7a] | 416 | wdummy=0. |
---|
| 417 | jy=ny-2 |
---|
| 418 | do ix=0,nxmin1 |
---|
| 419 | wdummy=wdummy+ww(ix,jy,iz,n) |
---|
| 420 | end do |
---|
| 421 | wdummy=wdummy/real(nx) |
---|
| 422 | jy=nymin1 |
---|
| 423 | do ix=0,nxmin1 |
---|
| 424 | ww(ix,jy,iz,n)=wdummy |
---|
| 425 | end do |
---|
[4fbe7a5] | 426 | end do |
---|
[e200b7a] | 427 | |
---|
| 428 | endif |
---|
| 429 | |
---|
| 430 | |
---|
| 431 | ! If south pole is in the domain, calculate wind velocities in polar |
---|
| 432 | ! stereographic coordinates |
---|
| 433 | !******************************************************************* |
---|
| 434 | |
---|
| 435 | if (sglobal) then |
---|
| 436 | do jy=0,int(switchsouthg)+3 |
---|
| 437 | ylat=ylat0+real(jy)*dy |
---|
| 438 | do ix=0,nxmin1 |
---|
| 439 | xlon=xlon0+real(ix)*dx |
---|
| 440 | do iz=1,nz |
---|
| 441 | call cc2gll(southpolemap,ylat,xlon,uu(ix,jy,iz,n), & |
---|
[4fbe7a5] | 442 | vv(ix,jy,iz,n),uupol(ix,jy,iz,n),vvpol(ix,jy,iz,n)) |
---|
[e200b7a] | 443 | end do |
---|
| 444 | end do |
---|
| 445 | end do |
---|
| 446 | |
---|
| 447 | do iz=1,nz |
---|
| 448 | |
---|
| 449 | ! CALCULATE FFPOL, DDPOL FOR CENTRAL GRID POINT |
---|
| 450 | xlon=xlon0+real(nx/2-1)*dx |
---|
| 451 | xlonr=xlon*pi/180. |
---|
[4fbe7a5] | 452 | ffpol=sqrt(uu(nx/2-1,0,iz,n)**2+vv(nx/2-1,0,iz,n)**2) |
---|
[e200b7a] | 453 | if(vv(nx/2-1,0,iz,n).lt.0.) then |
---|
[4fbe7a5] | 454 | ddpol=atan(uu(nx/2-1,0,iz,n)/vv(nx/2-1,0,iz,n))+xlonr |
---|
[e200b7a] | 455 | elseif (vv(nx/2-1,0,iz,n).gt.0.) then |
---|
[4fbe7a5] | 456 | ddpol=pi+atan(uu(nx/2-1,0,iz,n)/vv(nx/2-1,0,iz,n))-xlonr |
---|
[e200b7a] | 457 | else |
---|
| 458 | ddpol=pi/2-xlonr |
---|
| 459 | endif |
---|
| 460 | if(ddpol.lt.0.) ddpol=2.0*pi+ddpol |
---|
| 461 | if(ddpol.gt.2.0*pi) ddpol=ddpol-2.0*pi |
---|
| 462 | |
---|
| 463 | ! CALCULATE U,V FOR 180 DEG, TRANSFORM TO POLAR STEREOGRAPHIC GRID |
---|
| 464 | xlon=180.0 |
---|
| 465 | xlonr=xlon*pi/180. |
---|
| 466 | ylat=-90.0 |
---|
| 467 | uuaux=+ffpol*sin(xlonr-ddpol) |
---|
| 468 | vvaux=-ffpol*cos(xlonr-ddpol) |
---|
[4fbe7a5] | 469 | call cc2gll(northpolemap,ylat,xlon,uuaux,vvaux,uupolaux,vvpolaux) |
---|
[e200b7a] | 470 | |
---|
| 471 | jy=0 |
---|
| 472 | do ix=0,nxmin1 |
---|
| 473 | uupol(ix,jy,iz,n)=uupolaux |
---|
| 474 | vvpol(ix,jy,iz,n)=vvpolaux |
---|
| 475 | end do |
---|
| 476 | end do |
---|
| 477 | |
---|
| 478 | |
---|
| 479 | ! Fix: Set W at pole to the zonally averaged W of the next equator- |
---|
| 480 | ! ward parallel of latitude |
---|
| 481 | |
---|
| 482 | do iz=1,nz |
---|
| 483 | wdummy=0. |
---|
| 484 | jy=1 |
---|
| 485 | do ix=0,nxmin1 |
---|
| 486 | wdummy=wdummy+ww(ix,jy,iz,n) |
---|
| 487 | end do |
---|
| 488 | wdummy=wdummy/real(nx) |
---|
| 489 | jy=0 |
---|
| 490 | do ix=0,nxmin1 |
---|
| 491 | ww(ix,jy,iz,n)=wdummy |
---|
| 492 | end do |
---|
| 493 | end do |
---|
| 494 | endif |
---|
| 495 | |
---|
| 496 | |
---|
[db91eb7] | 497 | |
---|
| 498 | !*********************************************************************************** |
---|
| 499 | ! IP & SEC, 201812 GFS clouds read |
---|
| 500 | if (readclouds) then |
---|
| 501 | ! The method is loops all grids vertically and constructs the 3D matrix for clouds |
---|
| 502 | ! Cloud top and cloud bottom gid cells are assigned as well as the total column |
---|
| 503 | ! cloud water. For precipitating grids, the type and whether it is in or below |
---|
| 504 | ! cloud scavenging are assigned with numbers 2-5 (following the old metod). |
---|
| 505 | ! Distinction is done for lsp and convp though they are treated the same in regards |
---|
| 506 | ! to scavenging. Also clouds that are not precipitating are defined which may be |
---|
| 507 | ! to include future cloud processing by non-precipitating-clouds. |
---|
| 508 | !*********************************************************************************** |
---|
| 509 | write(*,*) 'Global NCEP fields: using cloud water' |
---|
| 510 | clw(:,:,:,n)=0.0 |
---|
| 511 | ctwc(:,:,n)=0.0 |
---|
| 512 | clouds(:,:,:,n)=0 |
---|
| 513 | ! If water/ice are read separately into clwc and ciwc, store sum in clwc |
---|
| 514 | do jy=0,nymin1 |
---|
| 515 | do ix=0,nxmin1 |
---|
| 516 | lsp=lsprec(ix,jy,1,n) |
---|
| 517 | convp=convprec(ix,jy,1,n) |
---|
| 518 | prec=lsp+convp |
---|
| 519 | ! Find clouds in the vertical |
---|
| 520 | do kz=1, nz-1 !go from top to bottom |
---|
| 521 | if (clwc(ix,jy,kz,n).gt.0) then |
---|
| 522 | ! assuming rho is in kg/m3 and hz in m gives: kg/kg * kg/m3 *m3/kg /m = m2/m3 |
---|
| 523 | clw(ix,jy,kz,n)=(clwc(ix,jy,kz,n)*rho(ix,jy,kz,n))*(height(kz+1)-height(kz)) |
---|
| 524 | ctwc(ix,jy,n) = ctwc(ix,jy,n)+clw(ix,jy,kz,n) |
---|
| 525 | cloudh_min=min(height(kz+1),height(kz)) |
---|
| 526 | endif |
---|
| 527 | end do |
---|
| 528 | |
---|
| 529 | ! If Precipitation. Define removal type in the vertical |
---|
| 530 | if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
---|
| 531 | |
---|
[437c545] | 532 | do kz=nz,2,-1 !go Bottom up! |
---|
[db91eb7] | 533 | if (clw(ix,jy,kz,n).gt. 0) then ! is in cloud |
---|
| 534 | cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+height(kz)-height(kz-1) |
---|
| 535 | clouds(ix,jy,kz,n)=1 ! is a cloud |
---|
| 536 | if (lsp.ge.convp) then |
---|
[437c545] | 537 | clouds(ix,jy,kz,n)=3 ! lsp in-cloud |
---|
[db91eb7] | 538 | else |
---|
| 539 | clouds(ix,jy,kz,n)=2 ! convp in-cloud |
---|
| 540 | endif ! convective or large scale |
---|
| 541 | elseif((clw(ix,jy,kz,n).le.0) .and. (cloudh_min.ge.height(kz))) then ! is below cloud |
---|
| 542 | if (lsp.ge.convp) then |
---|
| 543 | clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
---|
| 544 | else |
---|
| 545 | clouds(ix,jy,kz,n)=4 ! convp dominated washout |
---|
| 546 | endif ! convective or large scale |
---|
| 547 | endif |
---|
| 548 | |
---|
| 549 | if (height(kz).ge. 19000) then ! set a max height for removal |
---|
| 550 | clouds(ix,jy,kz,n)=0 |
---|
| 551 | endif !clw>0 |
---|
| 552 | end do !nz |
---|
| 553 | endif ! precipitation |
---|
| 554 | end do |
---|
| 555 | end do |
---|
| 556 | else |
---|
| 557 | write(*,*) 'Global NCEP fields: using cloud water from Parameterization' |
---|
[e200b7a] | 558 | ! write (*,*) 'initializing clouds, n:',n,nymin1,nxmin1,nz |
---|
| 559 | ! create a cloud and rainout/washout field, clouds occur where rh>80% |
---|
| 560 | ! total cloudheight is stored at level 0 |
---|
| 561 | do jy=0,nymin1 |
---|
| 562 | do ix=0,nxmin1 |
---|
| 563 | rain_cloud_above=0 |
---|
| 564 | lsp=lsprec(ix,jy,1,n) |
---|
| 565 | convp=convprec(ix,jy,1,n) |
---|
| 566 | cloudsh(ix,jy,n)=0 |
---|
| 567 | do kz_inv=1,nz-1 |
---|
| 568 | kz=nz-kz_inv+1 |
---|
| 569 | pressure=rho(ix,jy,kz,n)*r_air*tt(ix,jy,kz,n) |
---|
| 570 | rh=qv(ix,jy,kz,n)/f_qvsat(pressure,tt(ix,jy,kz,n)) |
---|
| 571 | clouds(ix,jy,kz,n)=0 |
---|
| 572 | if (rh.gt.0.8) then ! in cloud |
---|
[4fbe7a5] | 573 | if ((lsp.gt.0.01).or.(convp.gt.0.01)) then ! cloud and precipitation |
---|
| 574 | rain_cloud_above=1 |
---|
| 575 | cloudsh(ix,jy,n)=cloudsh(ix,jy,n)+height(kz)-height(kz-1) |
---|
| 576 | if (lsp.ge.convp) then |
---|
| 577 | clouds(ix,jy,kz,n)=3 ! lsp dominated rainout |
---|
| 578 | else |
---|
| 579 | clouds(ix,jy,kz,n)=2 ! convp dominated rainout |
---|
| 580 | endif |
---|
| 581 | else ! no precipitation |
---|
| 582 | clouds(ix,jy,kz,n)=1 ! cloud |
---|
| 583 | endif |
---|
[e200b7a] | 584 | else ! no cloud |
---|
[4fbe7a5] | 585 | if (rain_cloud_above.eq.1) then ! scavenging |
---|
| 586 | if (lsp.ge.convp) then |
---|
| 587 | clouds(ix,jy,kz,n)=5 ! lsp dominated washout |
---|
| 588 | else |
---|
| 589 | clouds(ix,jy,kz,n)=4 ! convp dominated washout |
---|
| 590 | endif |
---|
| 591 | endif |
---|
[e200b7a] | 592 | endif |
---|
| 593 | end do |
---|
| 594 | end do |
---|
| 595 | end do |
---|
[db91eb7] | 596 | endif ! IP & SEC 201812, GFS clouds read |
---|
[e200b7a] | 597 | |
---|
| 598 | |
---|
[6ecb30a] | 599 | end subroutine verttransform_gfs |
---|