source: LMDZ6/branches/Amaury_dev/libf/phylmd/readaerosol_mod.F90 @ 5080

Last change on this file since 5080 was 5075, checked in by abarral, 4 months ago

[continued & end] replace netcdf by lmdz_netcdf.F90 wrapper
"use netcdf" is now only used in lmdz_netcdf.F90 (except ecrad and obsolete/)
<include "netcdf.inc"> is now likewise only used in lmdz_netcdf.F90.

systematically specify explicitely <USE lmdz_netcdf, ONLY:> (probably left some missing, to correct later on)

Further replacement of nf_put_* by nf90_put_* (same for _get_)

[minor] replace deprecated boolean operators along the way

File size: 30.6 KB
Line 
1! $Id: readaerosol.F90 3436 2019-01-22 16:26:21Z emillour $
2!
3MODULE readaerosol_mod
4
5  USE lmdz_netcdf, ONLY: nf90_strerror,nf90_noerr,nf90_get_var,nf90_inq_varid,&
6          nf90_inquire_dimension,nf90_inq_dimid,nf90_open,nf90_nowrite,nf90_close
7
8  REAL, SAVE :: not_valid=-333.
9 
10  INTEGER, SAVE :: nbp_lon_src
11!$OMP THREADPRIVATE(nbp_lon_src) 
12  INTEGER, SAVE :: nbp_lat_src
13!$OMP THREADPRIVATE(nbp_lat_src) 
14  REAL, ALLOCATABLE, SAVE    :: psurf_interp(:,:)
15
16CONTAINS
17
18SUBROUTINE readaerosol(name_aero, type, filename, iyr_in, klev_src, pt_ap, pt_b, pt_out, psurf, load)
19
20!****************************************************************************************
21! This routine will read the aersosol from file.
22!
23! Read a year data with get_aero_fromfile depending on aer_type :
24! - actuel   : read year 1980
25! - preind   : read natural data
26! - scenario : read one or two years and do eventually linare time interpolation
27!
28! Return pointer, pt_out, to the year read or result from interpolation
29!****************************************************************************************
30  USE dimphy
31  USE print_control_mod, ONLY: lunout
32
33  IMPLICIT NONE
34
35  ! Input arguments
36  CHARACTER(len=7), INTENT(IN) :: name_aero
37  CHARACTER(len=*), INTENT(IN) :: type  ! actuel, annuel, scenario or preind
38  CHARACTER(len=8), INTENT(IN) :: filename
39  INTEGER, INTENT(IN)          :: iyr_in
40
41  ! Output
42  INTEGER, INTENT(OUT)            :: klev_src
43  REAL, POINTER, DIMENSION(:)     :: pt_ap        ! Pointer for describing the vertical levels     
44  REAL, POINTER, DIMENSION(:)     :: pt_b         ! Pointer for describing the vertical levels     
45  REAL, POINTER, DIMENSION(:,:,:) :: pt_out       ! The massvar distributions, DIMENSION(klon, klev_src, 12)
46  REAL, DIMENSION(klon,12), INTENT(OUT) :: psurf  ! Surface pression for 12 months
47  REAL, DIMENSION(klon,12), INTENT(OUT) :: load   ! Aerosol mass load in each column for 12 months
48
49  ! Local variables
50  CHARACTER(len=4)                :: cyear
51  REAL, POINTER, DIMENSION(:,:,:) :: pt_2
52  REAL, DIMENSION(klon,12)        :: psurf2, load2
53  INTEGER                         :: iyr1, iyr2, klev_src2
54  INTEGER                         :: it, k, i
55  LOGICAL, PARAMETER              :: lonlyone=.FALSE.
56
57!****************************************************************************************
58! Read data depending on aer_type
59!
60!****************************************************************************************
61
62  IF (type == 'actuel') THEN
63! Read and return data for year 1980
64!****************************************************************************************
65     cyear='1980'
66     ! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
67     ! pt_out has dimensions (klon, klev_src, 12)
68     CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
69     
70
71  ELSE IF (type == 'preind') THEN
72! Read and return data from file with suffix .nat
73!****************************************************************************************     
74     cyear='.nat'
75     ! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
76     ! pt_out has dimensions (klon, klev_src, 12)
77     CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
78     
79  ELSE IF (type == 'annuel') THEN
80! Read and return data from scenario annual files
81!****************************************************************************************     
82     WRITE(cyear,'(I4)') iyr_in
83     WRITE(lunout,*) 'get_aero 3 iyr_in=', iyr_in,'   ',cyear
84     ! get_aero_fromfile returns pt_out allocated and initialized with data for nbr_tsteps month
85     ! pt_out has dimensions (klon, klev_src, 12)
86     CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
87     
88  ELSE IF (type == 'scenario') THEN
89! Read data depending on actual year and interpolate if necessary
90!****************************************************************************************
91     IF (iyr_in < 1850) THEN
92        cyear='.nat'
93        WRITE(lunout,*) 'get_aero 1 iyr_in=', iyr_in,'   ',cyear
94        ! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
95        ! pt_out has dimensions (klon, klev_src, 12)
96        CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
97       
98     ELSE IF (iyr_in >= 2100) THEN
99        cyear='2100'
100        WRITE(lunout,*) 'get_aero 2 iyr_in=', iyr_in,'   ',cyear
101        ! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
102        ! pt_out has dimensions (klon, klev_src, 12)
103        CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
104       
105     ELSE
106        ! Read data from 2 decades and interpolate to actual year
107        ! a) from actual 10-yr-period
108        IF (iyr_in<1900) THEN
109           iyr1 = 1850
110           iyr2 = 1900
111        ELSE IF (iyr_in>=1900.AND.iyr_in<1920) THEN
112           iyr1 = 1900
113           iyr2 = 1920
114        ELSE
115           iyr1 = INT(iyr_in/10)*10
116           iyr2 = INT(1+iyr_in/10)*10
117        ENDIF
118       
119        WRITE(cyear,'(I4)') iyr1
120        WRITE(lunout,*) 'get_aero 3 iyr_in=', iyr_in,'   ',cyear
121        ! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
122        ! pt_out has dimensions (klon, klev_src, 12)
123        CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
124       
125        ! If to read two decades:
126        IF (.NOT.lonlyone) THEN
127           
128           ! b) from the next following one
129           WRITE(cyear,'(I4)') iyr2
130           WRITE(lunout,*) 'get_aero 4 iyr_in=', iyr_in,'   ',cyear
131           
132           NULLIFY(pt_2)
133           ! get_aero_fromfile returns pt_2 allocated and initialized with data for 12 month
134           ! pt_2 has dimensions (klon, klev_src, 12)
135           CALL get_aero_fromfile(name_aero, cyear, filename, klev_src2, pt_ap, pt_b, pt_2, psurf2, load2)
136           ! Test for same number of vertical levels
137           IF (klev_src /= klev_src2) THEN
138              WRITE(lunout,*) 'Two aerosols files with different number of vertical levels is not allowded'
139              CALL abort_physic('readaersosol','Error in number of vertical levels',1)
140           END IF
141           
142           ! Linare interpolate to the actual year:
143           DO it=1,12
144              DO k=1,klev_src
145                 DO i = 1, klon
146                    pt_out(i,k,it) = &
147                         pt_out(i,k,it) - REAL(iyr_in-iyr1)/REAL(iyr2-iyr1) * &
148                         (pt_out(i,k,it) - pt_2(i,k,it))
149                 END DO
150              END DO
151
152              DO i = 1, klon
153                 psurf(i,it) = &
154                      psurf(i,it) - REAL(iyr_in-iyr1)/REAL(iyr2-iyr1) * &
155                      (psurf(i,it) - psurf2(i,it))
156
157                 load(i,it) = &
158                      load(i,it) - REAL(iyr_in-iyr1)/REAL(iyr2-iyr1) * &
159                      (load(i,it) - load2(i,it))
160              END DO
161           END DO
162
163           ! Deallocate pt_2 no more needed
164           DEALLOCATE(pt_2)
165           
166        END IF ! lonlyone
167     END IF ! iyr_in .LT. 1850
168
169  ELSE
170     WRITE(lunout,*)'This option is not implemented : aer_type = ', type,' name_aero=',name_aero
171     CALL abort_physic('readaerosol','Error : aer_type parameter not accepted',1)
172  END IF ! type
173
174
175END SUBROUTINE readaerosol
176
177
178SUBROUTINE init_aero_fromfile(flag_aerosol, aerosol_couple)
179  USE mod_phys_lmdz_para
180  USE mod_grid_phy_lmdz, ONLY: grid_type, unstructured
181  USE lmdz_xios
182  IMPLICIT NONE
183
184  INTEGER, INTENT(IN) :: flag_aerosol
185  LOGICAL, INTENT(IN) :: aerosol_couple
186 
187  REAL,ALLOCATABLE :: lat_src(:)
188  REAL,ALLOCATABLE :: lon_src(:)
189  CHARACTER(LEN=*),PARAMETER :: file_aerosol='aerosols.nat.nc'
190  CHARACTER(LEN=*),PARAMETER :: file_so4='so4.nat.nc'
191  INTEGER :: klev_src
192  INTEGER :: ierr ,ncid, dimID, varid
193  REAL :: null_array(0)
194
195  IF (using_xios) THEN
196    IF (flag_aerosol>0 .AND. grid_type==unstructured .AND. (.NOT. aerosol_couple) ) THEN
197 
198      IF (is_omp_root) THEN
199 
200        IF (is_mpi_root) THEN
201   
202          IF (nf90_open(TRIM(file_aerosol), NF90_NOWRITE, ncid) /= NF90_NOERR) THEN
203            CALL check_err( nf90_open(TRIM(file_so4), NF90_NOWRITE, ncid), "pb open "//trim(file_so4) )
204          ENDIF
205
206          ! Read and test longitudes
207          CALL check_err( nf90_inq_dimid(ncid, "lon", dimID),"pb inq dim lon")
208          CALL check_err( nf90_inquire_dimension(ncid, dimID, len = nbp_lon_src),"pb inq dim lon")
209          CALL check_err( nf90_inq_varid(ncid, 'lon', varid),"pb inq lon" )
210          ALLOCATE(lon_src(nbp_lon_src))
211          CALL check_err( nf90_get_var(ncid, varid, lon_src(:)),"pb get lon" )
212
213          ! Read and test latitudes
214          CALL check_err( nf90_inq_dimid(ncid, "lat", dimID),"pb inq dim lat")
215          CALL check_err( nf90_inquire_dimension(ncid, dimID, len = nbp_lat_src),"pb inq dim lat")
216          CALL check_err( nf90_inq_varid(ncid, 'lat', varid),"pb inq lat" )
217          ALLOCATE(lat_src(nbp_lat_src))
218          CALL check_err( nf90_get_var(ncid, varid, lat_src(:)),"pb get lat" )
219          IF (nf90_inq_dimid(ncid, 'lev', dimid) /= NF90_NOERR) THEN
220            IF (nf90_inq_dimid(ncid, 'presnivs', dimid)/= NF90_NOERR) THEN
221               CALL check_err(nf90_inq_dimid(ncid, 'PRESNIVS', dimid),'dimension lev,PRESNIVS or presnivs not in file')
222            ENDIF
223          ENDIF
224          CALL check_err( nf90_inquire_dimension(ncid, dimid, len = klev_src),"pb inq dim for PRESNIVS or lev" )
225          CALL check_err( nf90_close(ncid),"pb in close" )   
226        ENDIF
227
228        CALL bcast_mpi(nbp_lat_src)
229        CALL bcast_mpi(nbp_lon_src)
230        CALL bcast_mpi(klev_src)
231
232        IF (is_mpi_root ) THEN
233          CALL xios_set_domain_attr("domain_aerosol",nj_glo=nbp_lat_src, nj=nbp_lat_src, jbegin=0, latvalue_1d=lat_src)
234          CALL xios_set_domain_attr("domain_aerosol",ni_glo=nbp_lon_src, ni=nbp_lon_src, ibegin=0, lonvalue_1d=lon_src)
235        ELSE
236          CALL xios_set_domain_attr("domain_aerosol",nj_glo=nbp_lat_src, nj=0, jbegin=0, latvalue_1d=null_array )
237          CALL xios_set_domain_attr("domain_aerosol",ni_glo=nbp_lon_src, ni=0, ibegin=0, lonvalue_1d=null_array)
238        ENDIF
239        CALL xios_set_axis_attr("axis_aerosol",n_glo=klev_src)
240        CALL xios_set_fieldgroup_attr("aerosols", enabled=.TRUE.)
241 
242      ENDIF
243   
244    ENDIF   
245  ENDIF !using_xios
246END SUBROUTINE init_aero_fromfile
247
248
249   
250
251  SUBROUTINE get_aero_fromfile(varname, cyr, filename, klev_src, pt_ap, pt_b, pt_year, psurf_out, load_out)
252!****************************************************************************************
253! Read 12 month aerosol from file and distribute to local process on physical grid.
254! Vertical levels, klev_src, may differ from model levels if new file format.
255!
256! For mpi_root and master thread :
257! 1) Open file
258! 2) Find vertical dimension klev_src
259! 3) Read field month by month
260! 4) Close file 
261! 5) Transform the global field from 2D(nbp_lon,nbp_lat) to 1D(klon_glo)
262!     - Also the levels and the latitudes have to be inversed
263!
264! For all processes and threads :
265! 6) Scatter global field(klon_glo) to local process domain(klon)
266! 7) Test for negative values
267!****************************************************************************************
268
269    USE dimphy
270    USE mod_grid_phy_lmdz, ONLY: nbp_lon_=>nbp_lon, nbp_lat_=>nbp_lat, klon_glo, &
271                                 grid2Dto1D_glo, grid_type, unstructured
272    USE mod_phys_lmdz_para
273    USE iophy, ONLY : io_lon, io_lat
274    USE print_control_mod, ONLY: lunout
275    USE lmdz_xios
276    IMPLICIT NONE
277     
278! Input argumets
279    CHARACTER(len=7), INTENT(IN)          :: varname
280    CHARACTER(len=4), INTENT(IN)          :: cyr
281    CHARACTER(len=8), INTENT(IN)          :: filename
282
283! Output arguments
284    INTEGER, INTENT(OUT)                  :: klev_src     ! Number of vertical levels in file
285    REAL, POINTER, DIMENSION(:)           :: pt_ap        ! Pointer for describing the vertical levels     
286    REAL, POINTER, DIMENSION(:)           :: pt_b         ! Pointer for describing the vertical levels     
287    REAL, POINTER, DIMENSION(:,:,:)       :: pt_year      ! Pointer-variabale from file, 12 month, grid : klon,klev_src
288    REAL, POINTER, DIMENSION(:,:,:)       :: pt_year_mpi  ! Pointer-variabale from file, 12 month, grid : klon,klev_src
289    REAL, DIMENSION(klon,12), INTENT(OUT) :: psurf_out    ! Surface pression for 12 months
290    REAL, DIMENSION(klon_mpi,12)          :: psurf_out_mpi    ! Surface pression for 12 months
291    REAL, DIMENSION(klon,12), INTENT(OUT) :: load_out     ! Aerosol mass load in each column
292    REAL, DIMENSION(klon_mpi,12)          :: load_out_mpi     ! Aerosol mass load in each column
293    INTEGER                               :: nbr_tsteps   ! number of month in file read
294
295! Local variables
296    CHARACTER(len=30)     :: fname
297    CHARACTER(len=30)     :: cvar
298    INTEGER               :: ncid, dimid, varid
299    INTEGER               :: imth, i, j, k, ierr
300    REAL                  :: npole, spole
301    REAL, ALLOCATABLE, DIMENSION(:,:,:)   :: varmth
302    REAL, ALLOCATABLE, DIMENSION(:,:,:,:) :: varyear       ! Global variable read from file, 12 month
303    REAL, ALLOCATABLE, DIMENSION(:,:,:)   :: varyear_glo1D !(klon_glo, klev_src, 12)
304    REAL, ALLOCATABLE, DIMENSION(:)       :: varktmp
305
306    REAL,  ALLOCATABLE                    :: psurf_glo2D(:,:,:)   ! Surface pression for 12 months on dynamics global grid
307    REAL, DIMENSION(klon_glo,12)          :: psurf_glo1D   ! -"- on physical global grid
308    REAL,  ALLOCATABLE                    :: load_glo2D(:,:,:)    ! Load for 12 months on dynamics global grid
309    REAL, DIMENSION(klon_glo,12)          :: load_glo1D    ! -"- on physical global grid
310    REAL, ALLOCATABLE, DIMENSION(:,:)     :: vartmp
311    REAL, ALLOCATABLE,DIMENSION(:)        :: lon_src              ! longitudes in file
312    REAL, ALLOCATABLE,DIMENSION(:)        :: lat_src, lat_src_inv ! latitudes in file
313    LOGICAL                               :: new_file             ! true if new file format detected
314    LOGICAL                               :: invert_lat           ! true if the field has to be inverted for latitudes
315    INTEGER                               :: nbp_lon, nbp_lat
316    LOGICAL,SAVE                          :: first=.TRUE.
317!$OMP THREADPRIVATE(first)
318   
319    IF (grid_type==unstructured) THEN
320      nbp_lon=nbp_lon_src
321      nbp_lat=nbp_lat_src
322    ELSE
323      nbp_lon=nbp_lon_
324      nbp_lat=nbp_lat_
325    ENDIF
326   
327    IF (is_mpi_root) THEN
328   
329      ALLOCATE(psurf_glo2D(nbp_lon,nbp_lat,12))
330      ALLOCATE(load_glo2D(nbp_lon,nbp_lat,12))
331      ALLOCATE(vartmp(nbp_lon,nbp_lat))
332      ALLOCATE(lon_src(nbp_lon))
333      ALLOCATE(lat_src(nbp_lat))
334      ALLOCATE(lat_src_inv(nbp_lat))
335    ELSE
336      ALLOCATE(varyear(0,0,0,0))
337      ALLOCATE(psurf_glo2D(0,0,0))
338      ALLOCATE(load_glo2D(0,0,0))
339    ENDIF
340           
341    ! Deallocate pointers
342    IF (ASSOCIATED(pt_ap)) DEALLOCATE(pt_ap)
343    IF (ASSOCIATED(pt_b))  DEALLOCATE(pt_b)
344
345    IF (is_mpi_root .AND. is_omp_root) THEN
346
347! 1) Open file
348!****************************************************************************************
349! Add suffix to filename
350       fname = trim(filename)//cyr//'.nc'
351 
352       WRITE(lunout,*) 'reading variable ',TRIM(varname),' in file ', TRIM(fname)
353       CALL check_err( nf90_open(TRIM(fname), NF90_NOWRITE, ncid), "pb open "//trim(fname) )
354
355
356       IF (grid_type/=unstructured) THEN
357
358! Test for equal longitudes and latitudes in file and model
359!****************************************************************************************
360       ! Read and test longitudes
361         CALL check_err( nf90_inq_varid(ncid, 'lon', varid),"pb inq lon" )
362         CALL check_err( nf90_get_var(ncid, varid, lon_src(:)),"pb get lon" )
363       
364         IF (maxval(ABS(lon_src - io_lon)) > 0.001) THEN
365            WRITE(lunout,*) 'Problem in longitudes read from file : ',TRIM(fname)
366            WRITE(lunout,*) 'longitudes in file ', TRIM(fname),' : ', lon_src
367            WRITE(lunout,*) 'longitudes in model :', io_lon
368         
369            CALL abort_physic('get_aero_fromfile', 'longitudes are not the same in file and model',1)
370         END IF
371
372         ! Read and test latitudes
373         CALL check_err( nf90_inq_varid(ncid, 'lat', varid),"pb inq lat" )
374         CALL check_err( nf90_get_var(ncid, varid, lat_src(:)),"pb get lat" )
375
376         ! Invert source latitudes
377         DO j = 1, nbp_lat
378            lat_src_inv(j) = lat_src(nbp_lat +1 -j)
379         END DO
380
381         IF (maxval(ABS(lat_src - io_lat)) < 0.001) THEN
382            ! Latitudes are the same
383            invert_lat=.FALSE.
384         ELSE IF (maxval(ABS(lat_src_inv - io_lat)) < 0.001) THEN
385            ! Inverted source latitudes correspond to model latitudes
386            WRITE(lunout,*) 'latitudes will be inverted for file : ',TRIM(fname)
387            invert_lat=.TRUE.
388         ELSE
389            WRITE(lunout,*) 'Problem in latitudes read from file : ',TRIM(fname)
390            WRITE(lunout,*) 'latitudes in file ', TRIM(fname),' : ', lat_src     
391            WRITE(lunout,*) 'latitudes in model :', io_lat
392            CALL abort_physic('get_aero_fromfile', 'latitudes do not correspond between file and model',1)
393         END IF
394       ENDIF
395
396! 2) Check if old or new file is avalabale.
397!    New type of file should contain the dimension 'lev'
398!    Old type of file should contain the dimension 'PRESNIVS'
399!****************************************************************************************
400       ierr = nf90_inq_dimid(ncid, 'lev', dimid)
401       IF (ierr /= NF90_NOERR) THEN
402          ! Coordinate axe lev not found. Check for presnivs.
403          ierr = nf90_inq_dimid(ncid, 'presnivs', dimid)
404          IF (ierr /= NF90_NOERR) THEN
405             ierr = nf90_inq_dimid(ncid, 'PRESNIVS', dimid)
406             IF (ierr /= NF90_NOERR) THEN
407                ! Dimension PRESNIVS not found either
408                CALL abort_physic('get_aero_fromfile', 'dimension lev,PRESNIVS or presnivs not in file',1)
409             ELSE
410                ! Old file found
411                new_file=.FALSE.
412                WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will not be done'
413             END IF
414          ELSE
415             ! New file found
416             new_file=.TRUE.
417             WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will be done'
418          ENDIF
419       ELSE
420          ! New file found
421          new_file=.TRUE.
422          WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will be done'
423       END IF
424       
425! 2) Find vertical dimension klev_src
426!****************************************************************************************
427       CALL check_err( nf90_inquire_dimension(ncid, dimid, len = klev_src),"pb inq dim for PRESNIVS or lev" )
428       
429     ! Allocate variables depending on the number of vertical levels
430       ALLOCATE(varmth(nbp_lon,nbp_lat, klev_src), varyear(nbp_lon,nbp_lat, klev_src, 12), stat=ierr)
431       IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 1',1)
432
433       ALLOCATE(pt_ap(klev_src), pt_b(klev_src), varktmp(klev_src), stat=ierr)
434       IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 2',1)
435
436! 3) Read all variables from file
437!    There is 2 options for the file structure :
438!    new_file=TRUE  : read varyear, ps, pt_ap and pt_b
439!    new_file=FALSE : read varyear month by month
440!****************************************************************************************
441
442       IF (new_file) THEN
443! ++) Check number of month in file opened
444!**************************************************************************************************
445       ierr = nf90_inq_dimid(ncid, 'TIME',dimid)
446       if (ierr /= NF90_NOERR) THEN
447          ierr = nf90_inq_dimid(ncid, 'time_counter', dimid)
448       ENDIF
449       CALL check_err( nf90_inquire_dimension(ncid, dimid, len = nbr_tsteps),"pb inq dim TIME or time_counter" )
450!       IF (nbr_tsteps /= 12 .AND. nbr_tsteps /= 14) THEN
451       IF (nbr_tsteps /= 12 ) THEN
452    CALL abort_physic('get_aero_fromfile', 'not the right number of months in aerosol file read (should be 12 for the moment)' &
453                     ,1)
454       ENDIF
455
456! ++) Read the aerosol concentration month by month and concatenate to total variable varyear
457!****************************************************************************************
458          ! Get variable id
459          !CALL check_err( nf90_inq_varid(ncid, TRIM(varname), varid),"pb inq var "//TRIM(varname) )
460          print *,'readaerosol ', TRIM(varname)
461          IF ( nf90_inq_varid(ncid, TRIM(varname), varid) /= NF90_NOERR ) THEN
462            ! Variable is not there
463            WRITE(lunout,*) 'Attention '//TRIM(varname)//' is not in aerosol input file'
464            varyear(:,:,:,:)=0.0
465          ELSE
466            ! Get the variable
467            CALL check_err( nf90_get_var(ncid, varid, varyear(:,:,:,:)),"pb get var "//TRIM(varname) )
468          ENDIF
469         
470! ++) Read surface pression, 12 month in one variable
471!****************************************************************************************
472          ! Get variable id
473          CALL check_err( nf90_inq_varid(ncid, "ps", varid),"pb inq var ps" )
474          ! Get the variable
475          CALL check_err( nf90_get_var(ncid, varid, psurf_glo2D),"pb get var ps" )
476         
477! ++) Read mass load, 12 month in one variable
478!****************************************************************************************
479          ! Get variable id
480          !CALL check_err( nf90_inq_varid(ncid, "load_"//TRIM(varname), varid) ,"pb inq var load_"//TRIM(varname))
481          IF ( nf90_inq_varid(ncid, "load_"//TRIM(varname), varid) /= NF90_NOERR ) THEN
482            WRITE(lunout,*) 'Attention load_'//TRIM(varname)//' is not in aerosol input file'
483            load_glo2D(:,:,:)=0.0
484          ELSE
485            ! Get the variable
486            CALL check_err( nf90_get_var(ncid, varid, load_glo2D),"pb get var load_"//TRIM(varname) )
487          ENDIF
488         
489! ++) Read ap
490!****************************************************************************************
491          ! Get variable id
492          CALL check_err( nf90_inq_varid(ncid, "ap", varid),"pb inq var ap" )
493          ! Get the variable
494          CALL check_err( nf90_get_var(ncid, varid, pt_ap),"pb get var ap" )
495
496! ++) Read b
497!****************************************************************************************
498          ! Get variable id
499          CALL check_err( nf90_inq_varid(ncid, "b", varid),"pb inq var b" )
500          ! Get the variable
501          CALL check_err( nf90_get_var(ncid, varid, pt_b),"pb get var b" )
502
503         
504
505       ELSE  ! old file
506
507! ++) Read the aerosol concentration month by month and concatenate to total variable varyear
508!****************************************************************************************
509          DO imth=1, 12
510             IF (imth==1) THEN
511                cvar=TRIM(varname)//'JAN'
512             ELSE IF (imth==2) THEN
513                cvar=TRIM(varname)//'FEB'
514             ELSE IF (imth==3) THEN
515                cvar=TRIM(varname)//'MAR'
516             ELSE IF (imth==4) THEN
517                cvar=TRIM(varname)//'APR'
518             ELSE IF (imth==5) THEN
519                cvar=TRIM(varname)//'MAY'
520             ELSE IF (imth==6) THEN
521                cvar=TRIM(varname)//'JUN'
522             ELSE IF (imth==7) THEN
523                cvar=TRIM(varname)//'JUL'
524             ELSE IF (imth==8) THEN
525                cvar=TRIM(varname)//'AUG'
526             ELSE IF (imth==9) THEN
527                cvar=TRIM(varname)//'SEP'
528             ELSE IF (imth==10) THEN
529                cvar=TRIM(varname)//'OCT'
530             ELSE IF (imth==11) THEN
531                cvar=TRIM(varname)//'NOV'
532             ELSE IF (imth==12) THEN
533                cvar=TRIM(varname)//'DEC'
534             END IF
535             
536             ! Get variable id
537             CALL check_err( nf90_inq_varid(ncid, TRIM(cvar), varid),"pb inq var "//TRIM(cvar) )
538             
539             ! Get the variable
540             CALL check_err( nf90_get_var(ncid, varid, varmth),"pb get var "//TRIM(cvar) )
541             
542             ! Store in variable for the whole year
543             varyear(:,:,:,imth)=varmth(:,:,:)
544             
545          END DO
546         
547          ! Putting dummy
548          psurf_glo2D(:,:,:) = not_valid
549          load_glo2D(:,:,:)  = not_valid
550          pt_ap(:) = not_valid
551          pt_b(:)  = not_valid
552
553       END IF
554
555! 4) Close file 
556!****************************************************************************************
557       CALL check_err( nf90_close(ncid),"pb in close" )
558     
559
560! 5) Transform the global field from 2D(nbp_lon,nbp_lat) to 1D(klon_glo)
561!****************************************************************************************
562! Test if vertical levels have to be inversed
563
564       IF ((pt_b(1) < pt_b(klev_src)) .OR. .NOT. new_file) THEN
565!          WRITE(lunout,*) 'Vertical axis in file ',TRIM(fname), ' needs to be inverted'
566!          WRITE(lunout,*) 'before pt_ap = ', pt_ap
567!          WRITE(lunout,*) 'before pt_b = ', pt_b
568         
569          ! Inverse vertical levels for varyear
570          DO imth=1, 12
571             varmth(:,:,:) = varyear(:,:,:,imth) ! use varmth temporarly
572             DO k=1, klev_src
573                DO j=1, nbp_lat
574                   DO i=1, nbp_lon
575                      varyear(i,j,k,imth) = varmth(i,j,klev_src+1-k)
576                   END DO
577                END DO
578             END DO
579          END DO
580           
581          ! Inverte vertical axes for pt_ap and pt_b
582          varktmp(:) = pt_ap(:)
583          DO k=1, klev_src
584             pt_ap(k) = varktmp(klev_src+1-k)
585          END DO
586
587          varktmp(:) = pt_b(:)
588          DO k=1, klev_src
589             pt_b(k) = varktmp(klev_src+1-k)
590          END DO
591          WRITE(lunout,*) 'after pt_ap = ', pt_ap
592          WRITE(lunout,*) 'after pt_b = ', pt_b
593
594       ELSE
595          WRITE(lunout,*) 'Vertical axis in file ',TRIM(fname), ' is ok, no vertical inversion is done'
596          WRITE(lunout,*) 'pt_ap = ', pt_ap
597          WRITE(lunout,*) 'pt_b = ', pt_b
598       END IF
599
600
601       IF (grid_type/=unstructured) THEN
602  !     - Invert latitudes if necessary
603         DO imth=1, 12
604            IF (invert_lat) THEN
605
606               ! Invert latitudes for the variable
607               varmth(:,:,:) = varyear(:,:,:,imth) ! use varmth temporarly
608               DO k=1,klev_src
609                  DO j=1,nbp_lat
610                     DO i=1,nbp_lon
611                        varyear(i,j,k,imth) = varmth(i,nbp_lat+1-j,k)
612                     END DO
613                  END DO
614               END DO
615             
616               ! Invert latitudes for surface pressure
617               vartmp(:,:) = psurf_glo2D(:,:,imth)
618               DO j=1,nbp_lat
619                  DO i=1,nbp_lon
620                     psurf_glo2D(i,j,imth)= vartmp(i,nbp_lat+1-j)
621                  END DO
622               END DO
623             
624               ! Invert latitudes for the load
625               vartmp(:,:) = load_glo2D(:,:,imth)
626               DO j=1,nbp_lat
627                  DO i=1,nbp_lon
628                     load_glo2D(i,j,imth)= vartmp(i,nbp_lat+1-j)
629                  END DO
630               END DO
631            END IF ! invert_lat
632             
633            ! Do zonal mead at poles and distribut at whole first and last latitude
634            DO k=1, klev_src
635               npole=0.  ! North pole, j=1
636               spole=0.  ! South pole, j=nbp_lat       
637               DO i=1,nbp_lon
638                  npole = npole + varyear(i,1,k,imth)
639                  spole = spole + varyear(i,nbp_lat,k,imth)
640               END DO
641               npole = npole/REAL(nbp_lon)
642               spole = spole/REAL(nbp_lon)
643               varyear(:,1,    k,imth) = npole
644               varyear(:,nbp_lat,k,imth) = spole
645            END DO
646         END DO ! imth
647       
648         ALLOCATE(varyear_glo1D(klon_glo, klev_src, 12), stat=ierr)
649         IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 3',1)
650       
651         ! Transform from 2D to 1D field
652         CALL grid2Dto1D_glo(varyear,varyear_glo1D)
653         CALL grid2Dto1D_glo(psurf_glo2D,psurf_glo1D)
654         CALL grid2Dto1D_glo(load_glo2D,load_glo1D)
655     
656      ENDIF
657     
658    ELSE
659        ALLOCATE(varyear_glo1D(0,0,0))       
660    END IF ! is_mpi_root .AND. is_omp_root
661
662!$OMP BARRIER
663 
664! 6) Distribute to all processes
665!    Scatter global field(klon_glo) to local process domain(klon)
666!    and distribute klev_src to all processes
667!****************************************************************************************
668
669    ! Distribute klev_src
670    CALL bcast(klev_src)
671
672    ! Allocate and distribute pt_ap and pt_b
673    IF (.NOT. ASSOCIATED(pt_ap)) THEN  ! if pt_ap is allocated also pt_b is allocated
674       ALLOCATE(pt_ap(klev_src), pt_b(klev_src), stat=ierr)
675       IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 4',1)
676    END IF
677    CALL bcast(pt_ap)
678    CALL bcast(pt_b)
679
680    ! Allocate space for output pointer variable at local process
681    IF (ASSOCIATED(pt_year)) DEALLOCATE(pt_year)
682    ALLOCATE(pt_year(klon, klev_src, 12), stat=ierr)
683    ALLOCATE(pt_year_mpi(klon_mpi, klev_src, 12), stat=ierr)
684    IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 5',1)
685
686    IF (grid_type==unstructured) THEN
687      IF (is_omp_master) THEN
688        CALL xios_send_field(TRIM(varname)//"_in",varyear)
689        CALL xios_recv_field(TRIM(varname)//"_out",pt_year_mpi)
690        CALL xios_send_field("load_"//TRIM(varname)//"_in",load_glo2D)
691        CALL xios_recv_field("load_"//TRIM(varname)//"_out",load_out_mpi)
692        IF (.not. allocated(psurf_interp)) THEN
693         ! psurf_interp is a shared array
694          ALLOCATE(psurf_interp(klon_mpi,12))
695          CALL xios_send_field("psurf_aerosol_in",psurf_glo2D)
696          CALL xios_recv_field("psurf_aerosol_out",psurf_interp)
697        ENDIF
698      ENDIF
699      CALL scatter_omp(pt_year_mpi,pt_year)
700      CALL scatter_omp(load_out_mpi,load_out)
701      CALL scatter_omp(psurf_interp,psurf_out)
702      first=.FALSE.
703    ELSE
704      ! Scatter global field to local domain at local process
705      CALL scatter(varyear_glo1D, pt_year)
706      CALL scatter(psurf_glo1D, psurf_out)
707      CALL scatter(load_glo1D,  load_out)
708    ENDIF
709! 7) Test for negative values
710!****************************************************************************************
711    IF (MINVAL(pt_year) < 0.) THEN
712       WRITE(lunout,*) 'Warning! Negative values read from file :', fname
713    END IF
714
715  END SUBROUTINE get_aero_fromfile
716
717
718  SUBROUTINE check_err(status,text)
719    USE print_control_mod, ONLY: lunout
720    IMPLICIT NONE
721
722    INTEGER, INTENT (IN) :: status
723    CHARACTER(len=*), INTENT (IN), OPTIONAL :: text
724
725    IF (status /= NF90_NOERR) THEN
726       WRITE(lunout,*) 'Error in get_aero_fromfile, netcdf error code = ',status
727       IF (PRESENT(text)) THEN
728          WRITE(lunout,*) 'Error in get_aero_fromfile : ',text
729       END IF
730       CALL abort_physic('get_aero_fromfile',trim(nf90_strerror(status)),1)
731    END IF
732
733  END SUBROUTINE check_err
734
735
736END MODULE readaerosol_mod
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