source: trunk/src/gridcheck_nests.f90 @ 28

Last change on this file since 28 was 27, checked in by hasod, 10 years ago
  • Implemented optional namelist input for COMMAND, RELEASES, SPECIES, AGECLASSES,OUTGRID,OUTGRID_NEST,RECEPTORS
  • Implemented com_mod switch nmlout to write input files as namelist to the output directory (.true. by default)
  • Proposed updated startup and runtime output (may change back to previous info if desired)
  • Property svn:executable set to *
File size: 17.1 KB
RevLine 
[4]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 gridcheck_nests
23
24  !*****************************************************************************
25  !                                                                            *
26  !     This routine checks the grid specification for the nested model        *
27  !     domains. It is similar to subroutine gridcheck, which checks the       *
28  !     mother domain.                                                         *
29  !                                                                            *
30  !     Authors: A. Stohl, G. Wotawa                                           *
31  !                                                                            *
32  !     8 February 1999                                                        *
33  !                                                                            *
34  !*****************************************************************************
35  !  CHANGE: 11/01/2008, Harald Sodemann, GRIB1/2 input with ECMWF grib_api    *
36  !  CHANGE: 03/12/2008, Harald Sodemann, change to f90 grib_api               *
37  !*****************************************************************************
38
39  use grib_api
40  use par_mod
41  use com_mod
42
43  implicit none
44
45  !HSO  parameters for grib_api
46  integer :: ifile
47  integer :: iret
48  integer :: igrib
49  integer :: gribVer,parCat,parNum,typSurf,valSurf,discipl
[24]50  integer :: parID !added by mc for making it consistent with new gridcheck.f90
[4]51  integer :: gotGrib
52  !HSO  end
53  integer :: i,j,k,l,ifn,ifield,iumax,iwmax,numskip,nlev_ecn
54  integer :: nuvzn,nwzn
55  real :: akmn(nwzmax),bkmn(nwzmax),akzn(nuvzmax),bkzn(nuvzmax)
56  real(kind=4) :: xaux1,xaux2,yaux1,yaux2
57  real(kind=8) :: xaux1in,xaux2in,yaux1in,yaux2in
[24]58  real :: conversion_factor !added by mc to make it consistent with new gridchek.f90
[4]59
60  ! VARIABLES AND ARRAYS NEEDED FOR GRIB DECODING
61
62  ! dimension of isec2 at least (22+n), where n is the number of parallels or
63  ! meridians in a quasi-regular (reduced) Gaussian or lat/long grid
64
65  ! dimension of zsec2 at least (10+nn), where nn is the number of vertical
66  ! coordinate parameters
67
68  integer :: isec1(56),isec2(22+nxmaxn+nymaxn)
69  real(kind=4) :: zsec2(60+2*nuvzmax),zsec4(jpunp)
70
71  !HSO  grib api error messages
72  character(len=24) :: gribErrorMsg = 'Error reading grib file'
73  character(len=20) :: gribFunction = 'gridcheck_nests'
74
75  xresoln(0)=1.       ! resolution enhancement for mother grid
76  yresoln(0)=1.       ! resolution enhancement for mother grid
77
78  ! Loop about all nesting levels
79  !******************************
80
81  do l=1,numbnests
82
83    iumax=0
84    iwmax=0
85
86    if(ideltas.gt.0) then
87      ifn=1
88    else
89      ifn=numbwf
90    endif
91  !
92  ! OPENING OF DATA FILE (GRIB CODE)
93  !
94  ifile=0
95  igrib=0
96  iret=0
97
985   call grib_open_file(ifile,path(numpath+2*(l-1)+1) &
99         (1:length(numpath+2*(l-1)+1))//trim(wfnamen(l,ifn)),'r',iret)
100  if (iret.ne.GRIB_SUCCESS) then
101    goto 999   ! ERROR DETECTED
102  endif
103  !turn on support for multi fields messages
104  !call grib_multi_support_on
105
106  gotGrib=0
107  ifield=0
10810   ifield=ifield+1
109
110  !
111  ! GET NEXT FIELDS
112  !
113  call grib_new_from_file(ifile,igrib,iret)
114  if (iret.eq.GRIB_END_OF_FILE)  then
115    goto 30    ! EOF DETECTED
116  elseif (iret.ne.GRIB_SUCCESS) then
117    goto 999   ! ERROR DETECTED
118  endif
119
120  !first see if we read GRIB1 or GRIB2
121  call grib_get_int(igrib,'editionNumber',gribVer,iret)
122  call grib_check(iret,gribFunction,gribErrorMsg)
123
124  if (gribVer.eq.1) then ! GRIB Edition 1
125
126  !print*,'GRiB Edition 1'
127  !read the grib2 identifiers
128  call grib_get_int(igrib,'indicatorOfParameter',isec1(6),iret)
129  call grib_check(iret,gribFunction,gribErrorMsg)
130  call grib_get_int(igrib,'level',isec1(8),iret)
131  call grib_check(iret,gribFunction,gribErrorMsg)
132
133  !change code for etadot to code for omega
134  if (isec1(6).eq.77) then
135    isec1(6)=135
136  endif
137
138  !print*,isec1(6),isec1(8)
139
140  else
141
142  !print*,'GRiB Edition 2'
143  !read the grib2 identifiers
144  call grib_get_int(igrib,'discipline',discipl,iret)
145  call grib_check(iret,gribFunction,gribErrorMsg)
146  call grib_get_int(igrib,'parameterCategory',parCat,iret)
147  call grib_check(iret,gribFunction,gribErrorMsg)
148  call grib_get_int(igrib,'parameterNumber',parNum,iret)
149  call grib_check(iret,gribFunction,gribErrorMsg)
150  call grib_get_int(igrib,'typeOfFirstFixedSurface',typSurf,iret)
151  call grib_check(iret,gribFunction,gribErrorMsg)
152  call grib_get_int(igrib,'level',valSurf,iret)
153  call grib_check(iret,gribFunction,gribErrorMsg)
[24]154  call grib_get_int(igrib,'paramId',parId,iret) !added by mc to make it consisitent with new grid_check.f90
155  call grib_check(iret,gribFunction,gribErrorMsg) !added by mc to make it consisitent with new  grid_check.f90
[4]156
157  !print*,discipl,parCat,parNum,typSurf,valSurf
158
159  !convert to grib1 identifiers
160  isec1(6)=-1
161  isec1(7)=-1
162  isec1(8)=-1
163  isec1(8)=valSurf     ! level
164  if ((parCat.eq.0).and.(parNum.eq.0).and.(typSurf.eq.105)) then ! T
165    isec1(6)=130         ! indicatorOfParameter
166  elseif ((parCat.eq.2).and.(parNum.eq.2).and.(typSurf.eq.105)) then ! U
167    isec1(6)=131         ! indicatorOfParameter
168  elseif ((parCat.eq.2).and.(parNum.eq.3).and.(typSurf.eq.105)) then ! V
169    isec1(6)=132         ! indicatorOfParameter
170  elseif ((parCat.eq.1).and.(parNum.eq.0).and.(typSurf.eq.105)) then ! Q
171    isec1(6)=133         ! indicatorOfParameter
172  elseif ((parCat.eq.3).and.(parNum.eq.0).and.(typSurf.eq.1)) then !SP
173    isec1(6)=134         ! indicatorOfParameter
174  elseif ((parCat.eq.2).and.(parNum.eq.32)) then ! W, actually eta dot
175    isec1(6)=135         ! indicatorOfParameter
[24]176  elseif ((parCat.eq.128).and.(parNum.eq.77)) then ! W, actually eta dot !added bymc to make it consistent with new gridchek.f90
177    isec1(6)=135         ! indicatorOfParameter    !                     ! " " " " " " " " " " " " " " " " " " " " " " " "  " " "
[4]178  elseif ((parCat.eq.3).and.(parNum.eq.0).and.(typSurf.eq.101)) then !SLP
179    isec1(6)=151         ! indicatorOfParameter
180  elseif ((parCat.eq.2).and.(parNum.eq.2).and.(typSurf.eq.103)) then ! 10U
181    isec1(6)=165         ! indicatorOfParameter
182  elseif ((parCat.eq.2).and.(parNum.eq.3).and.(typSurf.eq.103)) then ! 10V
183    isec1(6)=166         ! indicatorOfParameter
184  elseif ((parCat.eq.0).and.(parNum.eq.0).and.(typSurf.eq.103)) then ! 2T
185    isec1(6)=167         ! indicatorOfParameter
186  elseif ((parCat.eq.0).and.(parNum.eq.6).and.(typSurf.eq.103)) then ! 2D
187    isec1(6)=168         ! indicatorOfParameter
188  elseif ((parCat.eq.1).and.(parNum.eq.11).and.(typSurf.eq.1)) then ! SD
189    isec1(6)=141         ! indicatorOfParameter
[24]190  elseif ((parCat.eq.6).and.(parNum.eq.1) .or. parId .eq. 164) then ! CC !added by mc to make it consistent with new gridchek.f90
[4]191    isec1(6)=164         ! indicatorOfParameter
[24]192 elseif ((parCat.eq.1).and.(parNum.eq.9) .or. parId .eq. 142) then ! LSP !added by mc to make it consistent with new gridchek.f90
[4]193    isec1(6)=142         ! indicatorOfParameter
194  elseif ((parCat.eq.1).and.(parNum.eq.10)) then ! CP
195    isec1(6)=143         ! indicatorOfParameter
196  elseif ((parCat.eq.0).and.(parNum.eq.11).and.(typSurf.eq.1)) then ! SHF
197    isec1(6)=146         ! indicatorOfParameter
198  elseif ((parCat.eq.4).and.(parNum.eq.9).and.(typSurf.eq.1)) then ! SR
199    isec1(6)=176         ! indicatorOfParameter
[24]200  elseif ((parCat.eq.2).and.(parNum.eq.17) .or. parId .eq. 180) then ! EWSS !added by mc to make it consistent with new gridchek.f90
[4]201    isec1(6)=180         ! indicatorOfParameter
[24]202  elseif ((parCat.eq.2).and.(parNum.eq.18) .or. parId .eq. 181) then ! NSSS !added by mc to make it consistent with new gridchek.f90
[4]203    isec1(6)=181         ! indicatorOfParameter
204  elseif ((parCat.eq.3).and.(parNum.eq.4)) then ! ORO
205    isec1(6)=129         ! indicatorOfParameter
[24]206  elseif ((parCat.eq.3).and.(parNum.eq.7) .or. parId .eq. 160) then ! SDO !added by mc to make it consistent with new gridchek.f90
[4]207    isec1(6)=160         ! indicatorOfParameter
208  elseif ((discipl.eq.2).and.(parCat.eq.0).and.(parNum.eq.0).and. &
209       (typSurf.eq.1)) then ! LSM
210    isec1(6)=172         ! indicatorOfParameter
211  else
212    print*,'***ERROR: undefined GRiB2 message found!',discipl, &
213         parCat,parNum,typSurf
214  endif
[24]215  if(parId .ne. isec1(6) .and. parId .ne. 77) then !added by mc to make it consistent with new gridchek.f90
216    write(*,*) 'parId',parId, 'isec1(6)',isec1(6)
217!    stop
218  endif
[4]219
220  endif
221
222  !get the size and data of the values array
223  if (isec1(6).ne.-1) then
224    call grib_get_real4_array(igrib,'values',zsec4,iret)
225    call grib_check(iret,gribFunction,gribErrorMsg)
226  endif
227
228  !HSO  get the required fields from section 2 in a gribex compatible manner
229  if (ifield.eq.1) then
230    call grib_get_int(igrib,'numberOfPointsAlongAParallel', &
231         isec2(2),iret)
232    call grib_check(iret,gribFunction,gribErrorMsg)
233    call grib_get_int(igrib,'numberOfPointsAlongAMeridian', &
234         isec2(3),iret)
235    call grib_check(iret,gribFunction,gribErrorMsg)
236    call grib_get_int(igrib,'numberOfVerticalCoordinateValues', &
237         isec2(12),iret)
238    call grib_check(iret,gribFunction,gribErrorMsg)
239  !HSO    get the size and data of the vertical coordinate array
240    call grib_get_real4_array(igrib,'pv',zsec2,iret)
241    call grib_check(iret,gribFunction,gribErrorMsg)
242
243    nxn(l)=isec2(2)
244    nyn(l)=isec2(3)
245    nlev_ecn=isec2(12)/2-1
246  endif ! ifield
247
248  !HSO  get the second part of the grid dimensions only from GRiB1 messages
[24]249  if (isec1(6) .eq. 167 .and. (gotGrib.eq.0)) then !added by mc to make it consistent with new gridchek.f90 note that gotGrid must be changed in gotGrib!!
250    call grib_get_real8(igrib,'longitudeOfFirstGridPointInDegrees', & !comment by mc: note that this was in the (if (ifield.eq.1) ..end above in gridchek.f90 see line 257
[4]251         xaux1in,iret)
252    call grib_check(iret,gribFunction,gribErrorMsg)
253    call grib_get_real8(igrib,'longitudeOfLastGridPointInDegrees', &
254         xaux2in,iret)
255    call grib_check(iret,gribFunction,gribErrorMsg)
256    call grib_get_real8(igrib,'latitudeOfLastGridPointInDegrees', &
257         yaux1in,iret)
258    call grib_check(iret,gribFunction,gribErrorMsg)
259    call grib_get_real8(igrib,'latitudeOfFirstGridPointInDegrees', &
260         yaux2in,iret)
261    call grib_check(iret,gribFunction,gribErrorMsg)
262    xaux1=xaux1in
263    xaux2=xaux2in
264    yaux1=yaux1in
265    yaux2=yaux2in
[24]266    if(xaux1.gt.180.) xaux1=xaux1-360.0
267    if(xaux2.gt.180.) xaux2=xaux2-360.0
268    if(xaux1.lt.-180.) xaux1=xaux1+360.0
269    if(xaux2.lt.-180.) xaux2=xaux2+360.0
270    if (xaux2.lt.xaux1) xaux2=xaux2+360.0
[4]271    xlon0n(l)=xaux1
272    ylat0n(l)=yaux1
273    dxn(l)=(xaux2-xaux1)/real(nxn(l)-1)
274    dyn(l)=(yaux2-yaux1)/real(nyn(l)-1)
[24]275    gotGrib=1 !commetn by mc note tahthere gotGRIB is used instead of gotGrid!!!
[4]276  endif ! ifield.eq.1
277
278  k=isec1(8)
279  if(isec1(6).eq.131) iumax=max(iumax,nlev_ec-k+1)
280  if(isec1(6).eq.135) iwmax=max(iwmax,nlev_ec-k+1)
281
282  if(isec1(6).eq.129) then
283    do j=0,nyn(l)-1
284      do i=0,nxn(l)-1
285        oron(i,j,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)/ga
286      end do
287    end do
288  endif
289  if(isec1(6).eq.172) then
290    do j=0,nyn(l)-1
291      do i=0,nxn(l)-1
292        lsmn(i,j,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)/ga
293      end do
294    end do
295  endif
296  if(isec1(6).eq.160) then
297    do j=0,nyn(l)-1
298      do i=0,nxn(l)-1
299        excessoron(i,j,l)=zsec4(nxn(l)*(nyn(l)-j-1)+i+1)/ga
300      end do
301    end do
302  endif
303
304  call grib_release(igrib)
305  goto 10                 !! READ NEXT LEVEL OR PARAMETER
306  !
307  ! CLOSING OF INPUT DATA FILE
308  !
309
31030   call grib_close_file(ifile)
311
312  !error message if no fields found with correct first longitude in it
313  if (gotGrib.eq.0) then
314    print*,'***ERROR: input file needs to contain GRiB1 formatted'// &
315         'messages'
316    stop
317  endif
318
319  nuvzn=iumax
320  nwzn=iwmax
321  if(nuvzn.eq.nlev_ec) nwzn=nlev_ecn+1
322
323  if (nxn(l).gt.nxmaxn) then
324  write(*,*) 'FLEXPART error: Too many grid points in x direction.'
325  write(*,*) 'Reduce resolution of wind fields (file GRIDSPEC)'
326  write(*,*) 'for nesting level ',l
327  write(*,*) 'Or change parameter settings in file par_mod.'
328  write(*,*) nxn(l),nxmaxn
329  stop
330  endif
331
332  if (nyn(l).gt.nymaxn) then
333  write(*,*) 'FLEXPART error: Too many grid points in y direction.'
334  write(*,*) 'Reduce resolution of wind fields (file GRIDSPEC)'
335  write(*,*) 'for nesting level ',l
336  write(*,*) 'Or change parameter settings in file par_mod.'
337  write(*,*) nyn(l),nymaxn
338  stop
339  endif
340
341  if ((nuvzn.gt.nuvzmax).or.(nwzn.gt.nwzmax)) then
342  write(*,*) 'FLEXPART error: Nested wind fields have too many'// &
343       'vertical levels.'
344  write(*,*) 'Problem was encountered for nesting level ',l
345  stop
346  endif
347
348
349  ! Output of grid info
350  !********************
351
[27]352  write(*,'(a,i2,a)') ' Nested domain ',l,':'
[24]353  write(*,'(a,f10.5,a,f10.5,a,f10.5)') '  Longitude range: ', &
[4]354       xlon0n(l),' to ',xlon0n(l)+(nxn(l)-1)*dxn(l), &
355       '   Grid distance: ',dxn(l)
[27]356  write(*,'(a,f10.5,a,f10.5,a,f10.5)') '  Latitude range : ', &
[4]357       ylat0n(l),' to ',ylat0n(l)+(nyn(l)-1)*dyn(l), &
358       '   Grid distance: ',dyn(l)
359  write(*,*)
360
361  ! Determine, how much the resolutions in the nests are enhanced as
362  ! compared to the mother grid
363  !*****************************************************************
364
365  xresoln(l)=dx/dxn(l)
366  yresoln(l)=dy/dyn(l)
367
368  ! Determine the mother grid coordinates of the corner points of the
369  ! nested grids
370  ! Convert first to geographical coordinates, then to grid coordinates
371  !********************************************************************
372
373  xaux1=xlon0n(l)
374  xaux2=xlon0n(l)+real(nxn(l)-1)*dxn(l)
375  yaux1=ylat0n(l)
376  yaux2=ylat0n(l)+real(nyn(l)-1)*dyn(l)
377
378  xln(l)=(xaux1-xlon0)/dx
379  xrn(l)=(xaux2-xlon0)/dx
380  yln(l)=(yaux1-ylat0)/dy
381  yrn(l)=(yaux2-ylat0)/dy
382
383
384  if ((xln(l).lt.0.).or.(yln(l).lt.0.).or. &
385       (xrn(l).gt.real(nxmin1)).or.(yrn(l).gt.real(nymin1))) then
386    write(*,*) 'Nested domain does not fit into mother domain'
387    write(*,*) 'For global mother domain fields, you can shift'
388    write(*,*) 'shift the mother domain into x-direction'
389    write(*,*) 'by setting nxshift (file par_mod) to a'
390    write(*,*) 'positive value. Execution is terminated.'
391    stop
392  endif
393
394
395  ! CALCULATE VERTICAL DISCRETIZATION OF ECMWF MODEL
396  ! PARAMETER akm,bkm DESCRIBE THE HYBRID "ETA" COORDINATE SYSTEM
397
398  numskip=nlev_ecn-nuvzn ! number of ecmwf model layers not used by FLEXPART
399  do i=1,nwzn
400    j=numskip+i
401    k=nlev_ecn+1+numskip+i
402    akmn(nwzn-i+1)=zsec2(j)
403    bkmn(nwzn-i+1)=zsec2(k)
404  end do
405
406  !
407  ! CALCULATION OF AKZ, BKZ
408  ! AKZ,BKZ: model discretization parameters at the center of each model
409  !     layer
410  !
411  ! Assign the 10 m winds to an artificial model level with akz=0 and bkz=1.0,
412  ! i.e. ground level
413  !*****************************************************************************
414
415    akzn(1)=0.
416    bkzn(1)=1.0
417    do i=1,nuvzn
418      akzn(i+1)=0.5*(akmn(i+1)+akmn(i))
419      bkzn(i+1)=0.5*(bkmn(i+1)+bkmn(i))
420    end do
421    nuvzn=nuvzn+1
422
423  ! Check, whether the heights of the model levels of the nested
424  ! wind fields are consistent with those of the mother domain.
425  ! If not, terminate model run.
426  !*************************************************************
427
428    do i=1,nuvz
429      if ((akzn(i).ne.akz(i)).or.(bkzn(i).ne.bkz(i))) then
430  write(*,*) 'FLEXPART error: The wind fields of nesting level',l
431  write(*,*) 'are not consistent with the mother domain:'
432  write(*,*) 'Differences in vertical levels detected.'
433        stop
434      endif
435    end do
436
437    do i=1,nwz
438      if ((akmn(i).ne.akm(i)).or.(bkmn(i).ne.bkm(i))) then
439  write(*,*) 'FLEXPART error: The wind fields of nesting level',l
440  write(*,*) 'are not consistent with the mother domain:'
441  write(*,*) 'Differences in vertical levels detected.'
442        stop
443      endif
444    end do
445
446  end do
447
448  return
449
450999   write(*,*)
451  write(*,*) ' ###########################################'// &
452       '###### '
453  write(*,*) '                FLEXPART SUBROUTINE GRIDCHECK:'
454  write(*,*) ' CAN NOT OPEN INPUT DATA FILE '//wfnamen(l,ifn)
455  write(*,*) ' FOR NESTING LEVEL ',k
456  write(*,*) ' ###########################################'// &
457       '###### '
458  stop
459
460end subroutine gridcheck_nests
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