source: flexpart.git/src/readwind_nests.f90 @ 38b7917

10.4.1_peseiGFS_025bugfixes+enhancementsdevrelease-10release-10.4.1scaling-bugunivie
Last change on this file since 38b7917 was db712a8, checked in by Espen Sollum ATMOS <eso@…>, 8 years ago

Completed handling of nested wind fields with cloud water (for wet deposition).

  • Property mode set to 100644
File size: 19.6 KB
Line 
1!**********************************************************************
2! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010         *
3! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa,             *
4! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann   *
5!                                                                     *
6! This file is part of FLEXPART.                                      *
7!                                                                     *
8! FLEXPART is free software: you can redistribute it and/or modify    *
9! it under the terms of the GNU General Public License as published by*
10! the Free Software Foundation, either version 3 of the License, or   *
11! (at your option) any later version.                                 *
12!                                                                     *
13! FLEXPART is distributed in the hope that it will be useful,         *
14! but WITHOUT ANY WARRANTY; without even the implied warranty of      *
15! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the       *
16! GNU General Public License for more details.                        *
17!                                                                     *
18! You should have received a copy of the GNU General Public License   *
19! along with FLEXPART.  If not, see <http://www.gnu.org/licenses/>.   *
20!**********************************************************************
21
22subroutine readwind_nests(indj,n,uuhn,vvhn,wwhn)
23  !                           i   i  o    o    o
24  !*****************************************************************************
25  !                                                                            *
26  !     This routine reads the wind fields for the nested model domains.       *
27  !     It is similar to subroutine readwind, which reads the mother domain.   *
28  !                                                                            *
29  !     Authors: A. Stohl, G. Wotawa                                           *
30  !                                                                            *
31  !     8 February 1999                                                        *
32  !                                                                            *
33  !     Last update: 17 October 2000, A. Stohl                                 *
34  !                                                                            *
35  !*****************************************************************************
36  !  Changes, Bernd C. Krueger, Feb. 2001:                                     *
37  !        Variables tthn and qvhn (on eta coordinates) in common block        *
38  !  CHANGE: 11/01/2008, Harald Sodemann, GRIB1/2 input with ECMWF grib_api    *
39  !  CHANGE: 03/12/2008, Harald Sodemann, update to f90 with ECMWF grib_api    *
40  !*****************************************************************************
41
42  use grib_api
43  use par_mod
44  use com_mod
45
46  implicit none
47
48  !HSO  parameters for grib_api
49  integer :: ifile
50  integer :: iret
51  integer :: igrib
52  integer :: gribVer,parCat,parNum,typSurf,valSurf,discipl
53  integer :: parId !!added by mc for making it consistent with new readwind.f90
54  integer :: gotGrid
55  !HSO  end
56
57  real :: uuhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests)
58  real :: vvhn(0:nxmaxn-1,0:nymaxn-1,nuvzmax,maxnests)
59  real :: wwhn(0:nxmaxn-1,0:nymaxn-1,nwzmax,maxnests)
60  integer :: indj,i,j,k,n,levdiff2,ifield,iumax,iwmax,l
61
62  ! VARIABLES AND ARRAYS NEEDED FOR GRIB DECODING
63
64  ! dimension of isec2 at least (22+n), where n is the number of parallels or
65  ! meridians in a quasi-regular (reduced) Gaussian or lat/long grid
66
67  ! dimension of zsec2 at least (10+nn), where nn is the number of vertical
68  ! coordinate parameters
69
70  integer :: isec1(56),isec2(22+nxmaxn+nymaxn)
71  real(kind=4) :: zsec4(jpunp)
72  real(kind=4) :: xaux,yaux
73  real(kind=8) :: xauxin,yauxin
74  real,parameter :: eps=1.e-4
75  real :: ewss(0:nxmaxn-1,0:nymaxn-1),nsss(0:nxmaxn-1,0:nymaxn-1)
76  real :: plev1,pmean,tv,fu,hlev1,ff10m,fflev1
77  real :: conversion_factor !added by mc to make it consistent with new gridchek.f90
78
79  logical :: hflswitch,strswitch
80
81  !HSO  grib api error messages
82  character(len=24) :: gribErrorMsg = 'Error reading grib file'
83  character(len=20) :: gribFunction = 'readwind_nests'
84
85  do l=1,numbnests
86    hflswitch=.false.
87    strswitch=.false.
88    levdiff2=nlev_ec-nwz+1
89    iumax=0
90    iwmax=0
91
92    ifile=0
93    igrib=0
94    iret=0
95
96  !
97  ! OPENING OF DATA FILE (GRIB CODE)
98  !
99
1005   call grib_open_file(ifile,path(numpath+2*(l-1)+1) &
101         (1:length(numpath+2*(l-1)+1))//trim(wfnamen(l,indj)),'r')
102  if (iret.ne.GRIB_SUCCESS) then
103    goto 888   ! ERROR DETECTED
104  endif
105  !turn on support for multi fields messages */
106  !call grib_multi_support_on
107
108    gotGrid=0
109    ifield=0
11010   ifield=ifield+1
111  !
112  ! GET NEXT FIELDS
113  !
114  call grib_new_from_file(ifile,igrib,iret)
115  if (iret.eq.GRIB_END_OF_FILE)  then
116    goto 50    ! EOF DETECTED
117  elseif (iret.ne.GRIB_SUCCESS) then
118    goto 888   ! ERROR DETECTED
119  endif
120
121  !first see if we read GRIB1 or GRIB2
122  call grib_get_int(igrib,'editionNumber',gribVer,iret)
123  call grib_check(iret,gribFunction,gribErrorMsg)
124
125  if (gribVer.eq.1) then ! GRIB Edition 1
126
127  !print*,'GRiB Edition 1'
128  !read the grib2 identifiers
129  call grib_get_int(igrib,'indicatorOfParameter',isec1(6),iret)
130  call grib_check(iret,gribFunction,gribErrorMsg)
131  call grib_get_int(igrib,'level',isec1(8),iret)
132  call grib_check(iret,gribFunction,gribErrorMsg)
133
134  !change code for etadot to code for omega
135  if (isec1(6).eq.77) then
136    isec1(6)=135
137  endif
138
139  conversion_factor=1.
140
141
142  else
143
144  !print*,'GRiB Edition 2'
145  !read the grib2 identifiers
146  call grib_get_int(igrib,'discipline',discipl,iret)
147  call grib_check(iret,gribFunction,gribErrorMsg)
148  call grib_get_int(igrib,'parameterCategory',parCat,iret)
149  call grib_check(iret,gribFunction,gribErrorMsg)
150  call grib_get_int(igrib,'parameterNumber',parNum,iret)
151  call grib_check(iret,gribFunction,gribErrorMsg)
152  call grib_get_int(igrib,'typeOfFirstFixedSurface',typSurf,iret)
153  call grib_check(iret,gribFunction,gribErrorMsg)
154  call grib_get_int(igrib,'level',valSurf,iret)
155  call grib_check(iret,gribFunction,gribErrorMsg)
156  call grib_get_int(igrib,'paramId',parId,iret) !added by mc to make it consisitent with new readwind.f90
157  call grib_check(iret,gribFunction,gribErrorMsg) !added by mc to make it consisitent with new readwind.f90
158
159  !print*,discipl,parCat,parNum,typSurf,valSurf
160
161  !convert to grib1 identifiers
162  isec1(6)=-1
163  isec1(7)=-1
164  isec1(8)=-1
165  isec1(8)=valSurf     ! level
166   conversion_factor=1.
167  if ((parCat.eq.0).and.(parNum.eq.0).and.(typSurf.eq.105)) then ! T
168    isec1(6)=130         ! indicatorOfParameter
169  elseif ((parCat.eq.2).and.(parNum.eq.2).and.(typSurf.eq.105)) then ! U
170    isec1(6)=131         ! indicatorOfParameter
171  elseif ((parCat.eq.2).and.(parNum.eq.3).and.(typSurf.eq.105)) then ! V
172    isec1(6)=132         ! indicatorOfParameter
173  elseif ((parCat.eq.1).and.(parNum.eq.0).and.(typSurf.eq.105)) then ! Q
174    isec1(6)=133         ! indicatorOfParameter
175! ESO Cloud water is in a) fields CLWC and CIWC, *or* b) field QC
176    elseif ((parCat.eq.1).and.(parNum.eq.83).and.(typSurf.eq.105)) then ! clwc
177      isec1(6)=246         ! indicatorOfParameter
178    elseif ((parCat.eq.1).and.(parNum.eq.84).and.(typSurf.eq.105)) then ! ciwc
179      isec1(6)=247         ! indicatorOfParameter
180! ESO qc(=clwc+ciwc):
181    elseif ((parCat.eq.201).and.(parNum.eq.31).and.(typSurf.eq.105)) then ! qc
182      isec1(6)=201031         ! indicatorOfParameter
183  elseif ((parCat.eq.3).and.(parNum.eq.0).and.(typSurf.eq.1)) then !SP
184    isec1(6)=134         ! indicatorOfParameter
185  elseif ((parCat.eq.2).and.(parNum.eq.32)) then ! W, actually eta dot !
186    isec1(6)=135         ! indicatorOfParameter
187  elseif ((parCat.eq.128).and.(parNum.eq.77)) then ! W, actually eta dot !added by mc to make it consisitent with new readwind.f90
188    isec1(6)=135         ! indicatorOfParameter    !added by mc to make it consisitent with new readwind.f90
189  elseif ((parCat.eq.3).and.(parNum.eq.0).and.(typSurf.eq.101)) then !SLP
190    isec1(6)=151         ! indicatorOfParameter
191  elseif ((parCat.eq.2).and.(parNum.eq.2).and.(typSurf.eq.103)) then ! 10U
192    isec1(6)=165         ! indicatorOfParameter
193  elseif ((parCat.eq.2).and.(parNum.eq.3).and.(typSurf.eq.103)) then ! 10V
194    isec1(6)=166         ! indicatorOfParameter
195  elseif ((parCat.eq.0).and.(parNum.eq.0).and.(typSurf.eq.103)) then ! 2T
196    isec1(6)=167         ! indicatorOfParameter
197  elseif ((parCat.eq.0).and.(parNum.eq.6).and.(typSurf.eq.103)) then ! 2D
198    isec1(6)=168         ! indicatorOfParameter
199  elseif ((parCat.eq.1).and.(parNum.eq.11).and.(typSurf.eq.1)) then ! SD
200    isec1(6)=141         ! indicatorOfParameter
201    conversion_factor=1000. !added by mc to make it consisitent with new readwind.f90
202  elseif ((parCat.eq.6).and.(parNum.eq.1) .or. parId .eq. 164) then ! CC !added by mc to make it consisitent with new readwind.f90
203    isec1(6)=164         ! indicatorOfParameter
204  elseif ((parCat.eq.1).and.(parNum.eq.9) .or. parId .eq. 142) then ! LSP !added by mc to make it consisitent with new readwind.f90
205    isec1(6)=142         ! indicatorOfParameter
206  elseif ((parCat.eq.1).and.(parNum.eq.10)) then ! CP
207    isec1(6)=143         ! indicatorOfParameter
208    conversion_factor=1000. !added by mc to make it consisitent with new readwind.f90
209  elseif ((parCat.eq.0).and.(parNum.eq.11).and.(typSurf.eq.1)) then ! SHF
210    isec1(6)=146         ! indicatorOfParameter
211  elseif ((parCat.eq.4).and.(parNum.eq.9).and.(typSurf.eq.1)) then ! SR
212    isec1(6)=176         ! indicatorOfParameter
213  elseif ((parCat.eq.2).and.(parNum.eq.38) .or. parId .eq. 180) then ! EWSS !added by mc to make it consisitent with new readwind.f90
214    isec1(6)=180         ! indicatorOfParameter
215  elseif ((parCat.eq.2).and.(parNum.eq.37) .or. parId .eq. 181) then ! NSSS !added by mc to make it consisitent with new readwind.f90
216    isec1(6)=181         ! indicatorOfParameter
217  elseif ((parCat.eq.3).and.(parNum.eq.4)) then ! ORO
218    isec1(6)=129         ! indicatorOfParameter
219   elseif ((parCat.eq.3).and.(parNum.eq.7) .or. parId .eq. 160) then ! SDO !added by mc to make it consisitent with new readwind.f90
220    isec1(6)=160         ! indicatorOfParameter
221  elseif ((discipl.eq.2).and.(parCat.eq.0).and.(parNum.eq.0).and. &
222       (typSurf.eq.1)) then ! LSM
223    isec1(6)=172         ! indicatorOfParameter
224  else
225    print*,'***WARNING: undefined GRiB2 message found!',discipl, &
226         parCat,parNum,typSurf
227  endif
228  if(parId .ne. isec1(6) .and. parId .ne. 77) then !added by mc to make it consisitent with new readwind.f90
229    write(*,*) 'parId',parId, 'isec1(6)',isec1(6)  !
230!    stop
231  endif
232
233  endif
234
235  !HSO  get the size and data of the values array
236  if (isec1(6).ne.-1) then
237    call grib_get_real4_array(igrib,'values',zsec4,iret)
238    call grib_check(iret,gribFunction,gribErrorMsg)
239  endif
240
241  !HSO  get the required fields from section 2 in a gribex compatible manner
242  if(ifield.eq.1) then
243  call grib_get_int(igrib,'numberOfPointsAlongAParallel', &
244       isec2(2),iret)
245  call grib_check(iret,gribFunction,gribErrorMsg)
246  call grib_get_int(igrib,'numberOfPointsAlongAMeridian', &
247       isec2(3),iret)
248  call grib_check(iret,gribFunction,gribErrorMsg)
249  call grib_get_int(igrib,'numberOfVerticalCoordinateValues', &
250       isec2(12))
251  call grib_check(iret,gribFunction,gribErrorMsg)
252  ! CHECK GRID SPECIFICATIONS
253  if(isec2(2).ne.nxn(l)) stop &
254  'READWIND: NX NOT CONSISTENT FOR A NESTING LEVEL'
255  if(isec2(3).ne.nyn(l)) stop &
256  'READWIND: NY NOT CONSISTENT FOR A NESTING LEVEL'
257  if(isec2(12)/2-1.ne.nlev_ec) stop 'READWIND: VERTICAL DISCRET&
258       &IZATION NOT CONSISTENT FOR A NESTING LEVEL'
259  endif ! ifield
260
261  !HSO  get the second part of the grid dimensions only from GRiB1 messages
262 if (isec1(6) .eq. 167 .and. (gotGrid.eq.0)) then ! !added by mc to make it consisitent with new readwind.f90
263    call grib_get_real8(igrib,'longitudeOfFirstGridPointInDegrees', &
264         xauxin,iret)
265    call grib_check(iret,gribFunction,gribErrorMsg)
266    call grib_get_real8(igrib,'latitudeOfLastGridPointInDegrees', &
267         yauxin,iret)
268    call grib_check(iret,gribFunction,gribErrorMsg)
269    if (xauxin.gt.180.) xauxin=xauxin-360.0
270    if (xauxin.lt.-180.) xauxin=xauxin+360.0
271
272    xaux=xauxin
273    yaux=yauxin
274    if (abs(xaux-xlon0n(l)).gt.eps) &
275    stop 'READWIND: LOWER LEFT LONGITUDE NOT CONSISTENT FOR A NESTING LEVEL'
276    if (abs(yaux-ylat0n(l)).gt.eps) &
277    stop 'READWIND: LOWER LEFT LATITUDE NOT CONSISTENT FOR A NESTING LEVEL'
278    gotGrid=1
279  endif
280
281    do j=0,nyn(l)-1
282      do i=0,nxn(l)-1
283        k=isec1(8)
284        if(isec1(6).eq.130) tthn(i,j,nlev_ec-k+2,n,l)= &!! TEMPERATURE
285             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
286        if(isec1(6).eq.131) uuhn(i,j,nlev_ec-k+2,l)= &!! U VELOCITY
287             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
288        if(isec1(6).eq.132) vvhn(i,j,nlev_ec-k+2,l)= &!! V VELOCITY
289             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
290        if(isec1(6).eq.133) then                         !! SPEC. HUMIDITY
291          qvhn(i,j,nlev_ec-k+2,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
292          if (qvhn(i,j,nlev_ec-k+2,n,l) .lt. 0.) &
293               qvhn(i,j,nlev_ec-k+2,n,l) = 0.
294  !          this is necessary because the gridded data may contain
295  !          spurious negative values
296        endif
297        if(isec1(6).eq.134) psn(i,j,1,n,l)= &!! SURF. PRESS.
298             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
299        if(isec1(6).eq.135) wwhn(i,j,nlev_ec-k+1,l)= &!! W VELOCITY
300             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
301        if(isec1(6).eq.141) sdn(i,j,1,n,l)= &!! SNOW DEPTH
302             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)/conversion_factor !added by mc to make it consisitent with new readwind.f90!
303        if(isec1(6).eq.151) msln(i,j,1,n,l)= &!! SEA LEVEL PRESS.
304             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
305        if(isec1(6).eq.164) tccn(i,j,1,n,l)= &!! CLOUD COVER
306             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
307        if(isec1(6).eq.165) u10n(i,j,1,n,l)= &!! 10 M U VELOCITY
308             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
309        if(isec1(6).eq.166) v10n(i,j,1,n,l)= &!! 10 M V VELOCITY
310             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
311        if(isec1(6).eq.167) tt2n(i,j,1,n,l)= &!! 2 M TEMPERATURE
312             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
313        if(isec1(6).eq.168) td2n(i,j,1,n,l)= &!! 2 M DEW POINT
314             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
315        if(isec1(6).eq.142) then                         !! LARGE SCALE PREC.
316          lsprecn(i,j,1,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
317          if (lsprecn(i,j,1,n,l).lt.0.) lsprecn(i,j,1,n,l)=0.
318        endif
319        if(isec1(6).eq.143) then                         !! CONVECTIVE PREC.
320          convprecn(i,j,1,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)/conversion_factor !added by mc to make it consisitent with new readwind.f90
321          if (convprecn(i,j,1,n,l).lt.0.) convprecn(i,j,1,n,l)=0.
322        endif
323        if(isec1(6).eq.146) sshfn(i,j,1,n,l)= &!! SENS. HEAT FLUX
324             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
325        if((isec1(6).eq.146).and. &
326             (zsec4(nxn(l)*(nyn(l)-j-1)+i+1).ne.0.)) hflswitch=.true.    ! Heat flux available
327        if(isec1(6).eq.176) then                         !! SOLAR RADIATION
328          ssrn(i,j,1,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
329          if (ssrn(i,j,1,n,l).lt.0.) ssrn(i,j,1,n,l)=0.
330        endif
331        if(isec1(6).eq.180) ewss(i,j)= &!! EW SURFACE STRESS
332             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
333        if(isec1(6).eq.181) nsss(i,j)= &!! NS SURFACE STRESS
334             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
335        if(((isec1(6).eq.180).or.(isec1(6).eq.181)).and. &
336             (zsec4(nxn(l)*(nyn(l)-j-1)+i+1).ne.0.)) strswitch=.true.    ! stress available
337        if(isec1(6).eq.129) oron(i,j,l)= &!! ECMWF OROGRAPHY
338             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)/ga
339        if(isec1(6).eq.160) excessoron(i,j,l)= &!! STANDARD DEVIATION OF OROGRAPHY
340             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
341        if(isec1(6).eq.172) lsmn(i,j,l)= &!! ECMWF LAND SEA MASK
342             zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
343        if(isec1(6).eq.131) iumax=max(iumax,nlev_ec-k+1)
344        if(isec1(6).eq.135) iwmax=max(iwmax,nlev_ec-k+1)
345
346! ESO TODO:
347! -add check for if one of clwc/ciwc missing (error),
348!    also if all 3 cw fields present, use qc and disregard the others
349        if(isec1(6).eq.246) then  !! CLWC  Cloud liquid water content [kg/kg]
350          clwchn(i,j,nlev_ec-k+2,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
351          readclouds_nest(l)=.true.
352          sumclouds_nest(l)=.false.
353        endif
354        if(isec1(6).eq.247) then  !! CIWC  Cloud ice water content
355          ciwchn(i,j,nlev_ec-k+2,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
356        endif
357!ZHG end
358!ESO read qc (=clwc+ciwc)
359        if(isec1(6).eq.201031) then  !! QC  Cloud liquid water content [kg/kg]
360          clwchn(i,j,nlev_ec-k+2,n,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)
361          readclouds_nest(l)=.true.
362          sumclouds_nest(l)=.true.
363        endif
364
365
366      end do
367    end do
368
369  call grib_release(igrib)
370  goto 10                      !! READ NEXT LEVEL OR PARAMETER
371  !
372  ! CLOSING OF INPUT DATA FILE
373  !
37450   call grib_close_file(ifile)
375
376  !error message if no fields found with correct first longitude in it
377  if (gotGrid.eq.0) then
378    print*,'***ERROR: input file needs to contain GRiB1 formatted'// &
379         'messages'
380    stop
381  endif
382
383  if(levdiff2.eq.0) then
384    iwmax=nlev_ec+1
385    do i=0,nxn(l)-1
386      do j=0,nyn(l)-1
387        wwhn(i,j,nlev_ec+1,l)=0.
388      end do
389    end do
390  endif
391
392  do i=0,nxn(l)-1
393    do j=0,nyn(l)-1
394      surfstrn(i,j,1,n,l)=sqrt(ewss(i,j)**2+nsss(i,j)**2)
395    end do
396  end do
397
398  if ((.not.hflswitch).or.(.not.strswitch)) then
399    write(*,*) 'WARNING: No flux data contained in GRIB file ', &
400         wfnamen(l,indj)
401
402  ! CALCULATE USTAR AND SSHF USING THE PROFILE METHOD
403  ! As ECMWF has increased the model resolution, such that now the first model
404  ! level is at about 10 m (where 10-m wind is given), use the 2nd ECMWF level
405  ! (3rd model level in FLEXPART) for the profile method
406  !***************************************************************************
407
408    do i=0,nxn(l)-1
409      do j=0,nyn(l)-1
410        plev1=akz(3)+bkz(3)*psn(i,j,1,n,l)
411        pmean=0.5*(psn(i,j,1,n,l)+plev1)
412        tv=tthn(i,j,3,n,l)*(1.+0.61*qvhn(i,j,3,n,l))
413        fu=-r_air*tv/ga/pmean
414        hlev1=fu*(plev1-psn(i,j,1,n,l))   ! HEIGTH OF FIRST MODEL LAYER
415        ff10m= sqrt(u10n(i,j,1,n,l)**2+v10n(i,j,1,n,l)**2)
416        fflev1=sqrt(uuhn(i,j,3,l)**2+vvhn(i,j,3,l)**2)
417        call pbl_profile(psn(i,j,1,n,l),td2n(i,j,1,n,l),hlev1, &
418             tt2n(i,j,1,n,l),tthn(i,j,3,n,l),ff10m,fflev1, &
419             surfstrn(i,j,1,n,l),sshfn(i,j,1,n,l))
420        if(sshfn(i,j,1,n,l).gt.200.) sshfn(i,j,1,n,l)=200.
421        if(sshfn(i,j,1,n,l).lt.-400.) sshfn(i,j,1,n,l)=-400.
422      end do
423    end do
424  endif
425
426
427  ! Assign 10 m wind to model level at eta=1.0 to have one additional model
428  ! level at the ground
429  ! Specific humidity is taken the same as at one level above
430  ! Temperature is taken as 2 m temperature
431  !**************************************************************************
432
433    do i=0,nxn(l)-1
434      do j=0,nyn(l)-1
435        uuhn(i,j,1,l)=u10n(i,j,1,n,l)
436        vvhn(i,j,1,l)=v10n(i,j,1,n,l)
437        qvhn(i,j,1,n,l)=qvhn(i,j,2,n,l)
438        tthn(i,j,1,n,l)=tt2n(i,j,1,n,l)
439      end do
440    end do
441
442    if(iumax.ne.nuvz-1) stop &
443         'READWIND: NUVZ NOT CONSISTENT FOR A NESTING LEVEL'
444    if(iwmax.ne.nwz) stop &
445         'READWIND: NWZ NOT CONSISTENT FOR A NESTING LEVEL'
446
447  end do
448
449  return
450888   write(*,*) ' #### FLEXPART MODEL ERROR! WINDFIELD         #### '
451  write(*,*) ' #### ',wfnamen(l,indj),' FOR NESTING LEVEL  #### '
452  write(*,*) ' #### ',l,' IS NOT GRIB FORMAT !!!           #### '
453  stop 'Execution terminated'
454
455
456999   write(*,*) ' #### FLEXPART MODEL ERROR! WINDFIELD         #### '
457  write(*,*) ' #### ',wfnamen(l,indj),'                    #### '
458  write(*,*) ' #### CANNOT BE OPENED FOR NESTING LEVEL ',l,'####'
459
460end subroutine readwind_nests
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