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readaerosol_mod.F90 @ 3957

Last change on this file since 3957 was 3440, checked in by Laurent Fairhead, 6 years ago
For checking purposes
File size: 30.4 KB

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[3440]	1	! $Id: readaerosol.F90 3436 2019-01-22 16:26:21Z emillour $
	2	!
	3	MODULE readaerosol_mod
	4
	5	REAL, SAVE :: not_valid=-333.
	6
	7	INTEGER, SAVE :: nbp_lon_src
	8	!$OMP THREADPRIVATE(nbp_lon_src)
	9	INTEGER, SAVE :: nbp_lat_src
	10	!$OMP THREADPRIVATE(nbp_lat_src)
	11	REAL, ALLOCATABLE, SAVE :: psurf_interp(:,:)
	12	!$OMP THREADPRIVATE(psurf_interp)
	13
	14	CONTAINS
	15
	16	SUBROUTINE readaerosol(name_aero, type, filename, iyr_in, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	17
	18	!****************************************************************************************
	19	! This routine will read the aersosol from file.
	20	!
	21	! Read a year data with get_aero_fromfile depending on aer_type :
	22	! - actuel : read year 1980
	23	! - preind : read natural data
	24	! - scenario : read one or two years and do eventually linare time interpolation
	25	!
	26	! Return pointer, pt_out, to the year read or result from interpolation
	27	!****************************************************************************************
	28	USE dimphy
	29	USE print_control_mod, ONLY: lunout
	30
	31	IMPLICIT NONE
	32
	33	! Input arguments
	34	CHARACTER(len=7), INTENT(IN) :: name_aero
	35	CHARACTER(len=*), INTENT(IN) :: type ! actuel, annuel, scenario or preind
	36	CHARACTER(len=8), INTENT(IN) :: filename
	37	INTEGER, INTENT(IN) :: iyr_in
	38
	39	! Output
	40	INTEGER, INTENT(OUT) :: klev_src
	41	REAL, POINTER, DIMENSION(:) :: pt_ap ! Pointer for describing the vertical levels
	42	REAL, POINTER, DIMENSION(:) :: pt_b ! Pointer for describing the vertical levels
	43	REAL, POINTER, DIMENSION(:,:,:) :: pt_out ! The massvar distributions, DIMENSION(klon, klev_src, 12)
	44	REAL, DIMENSION(klon,12), INTENT(OUT) :: psurf ! Surface pression for 12 months
	45	REAL, DIMENSION(klon,12), INTENT(OUT) :: load ! Aerosol mass load in each column for 12 months
	46
	47	! Local variables
	48	CHARACTER(len=4) :: cyear
	49	REAL, POINTER, DIMENSION(:,:,:) :: pt_2
	50	REAL, DIMENSION(klon,12) :: psurf2, load2
	51	INTEGER :: iyr1, iyr2, klev_src2
	52	INTEGER :: it, k, i
	53	LOGICAL, PARAMETER :: lonlyone=.FALSE.
	54
	55	!****************************************************************************************
	56	! Read data depending on aer_type
	57	!
	58	!****************************************************************************************
	59
	60	IF (type == 'actuel') THEN
	61	! Read and return data for year 1980
	62	!****************************************************************************************
	63	cyear='1980'
	64	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
	65	! pt_out has dimensions (klon, klev_src, 12)
	66	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	67
	68
	69	ELSE IF (type == 'preind') THEN
	70	! Read and return data from file with suffix .nat
	71	!****************************************************************************************
	72	cyear='.nat'
	73	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
	74	! pt_out has dimensions (klon, klev_src, 12)
	75	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	76
	77	ELSE IF (type == 'annuel') THEN
	78	! Read and return data from scenario annual files
	79	!****************************************************************************************
	80	WRITE(cyear,'(I4)') iyr_in
	81	WRITE(lunout,*) 'get_aero 3 iyr_in=', iyr_in,' ',cyear
	82	! get_aero_fromfile returns pt_out allocated and initialized with data for nbr_tsteps month
	83	! pt_out has dimensions (klon, klev_src, 12)
	84	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	85
	86	ELSE IF (type == 'scenario') THEN
	87	! Read data depending on actual year and interpolate if necessary
	88	!****************************************************************************************
	89	IF (iyr_in .LT. 1850) THEN
	90	cyear='.nat'
	91	WRITE(lunout,*) 'get_aero 1 iyr_in=', iyr_in,' ',cyear
	92	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
	93	! pt_out has dimensions (klon, klev_src, 12)
	94	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	95
	96	ELSE IF (iyr_in .GE. 2100) THEN
	97	cyear='2100'
	98	WRITE(lunout,*) 'get_aero 2 iyr_in=', iyr_in,' ',cyear
	99	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
	100	! pt_out has dimensions (klon, klev_src, 12)
	101	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	102
	103	ELSE
	104	! Read data from 2 decades and interpolate to actual year
	105	! a) from actual 10-yr-period
	106	IF (iyr_in.LT.1900) THEN
	107	iyr1 = 1850
	108	iyr2 = 1900
	109	ELSE IF (iyr_in.GE.1900.AND.iyr_in.LT.1920) THEN
	110	iyr1 = 1900
	111	iyr2 = 1920
	112	ELSE
	113	iyr1 = INT(iyr_in/10)*10
	114	iyr2 = INT(1+iyr_in/10)*10
	115	ENDIF
	116
	117	WRITE(cyear,'(I4)') iyr1
	118	WRITE(lunout,*) 'get_aero 3 iyr_in=', iyr_in,' ',cyear
	119	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
	120	! pt_out has dimensions (klon, klev_src, 12)
	121	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src, pt_ap, pt_b, pt_out, psurf, load)
	122
	123	! If to read two decades:
	124	IF (.NOT.lonlyone) THEN
	125
	126	! b) from the next following one
	127	WRITE(cyear,'(I4)') iyr2
	128	WRITE(lunout,*) 'get_aero 4 iyr_in=', iyr_in,' ',cyear
	129
	130	NULLIFY(pt_2)
	131	! get_aero_fromfile returns pt_2 allocated and initialized with data for 12 month
	132	! pt_2 has dimensions (klon, klev_src, 12)
	133	CALL get_aero_fromfile(name_aero, cyear, filename, klev_src2, pt_ap, pt_b, pt_2, psurf2, load2)
	134	! Test for same number of vertical levels
	135	IF (klev_src /= klev_src2) THEN
	136	WRITE(lunout,*) 'Two aerosols files with different number of vertical levels is not allowded'
	137	CALL abort_physic('readaersosol','Error in number of vertical levels',1)
	138	END IF
	139
	140	! Linare interpolate to the actual year:
	141	DO it=1,12
	142	DO k=1,klev_src
	143	DO i = 1, klon
	144	pt_out(i,k,it) = &
	145	pt_out(i,k,it) - REAL(iyr_in-iyr1)/REAL(iyr2-iyr1) * &
	146	(pt_out(i,k,it) - pt_2(i,k,it))
	147	END DO
	148	END DO
	149
	150	DO i = 1, klon
	151	psurf(i,it) = &
	152	psurf(i,it) - REAL(iyr_in-iyr1)/REAL(iyr2-iyr1) * &
	153	(psurf(i,it) - psurf2(i,it))
	154
	155	load(i,it) = &
	156	load(i,it) - REAL(iyr_in-iyr1)/REAL(iyr2-iyr1) * &
	157	(load(i,it) - load2(i,it))
	158	END DO
	159	END DO
	160
	161	! Deallocate pt_2 no more needed
	162	DEALLOCATE(pt_2)
	163
	164	END IF ! lonlyone
	165	END IF ! iyr_in .LT. 1850
	166
	167	ELSE
	168	WRITE(lunout,*)'This option is not implemented : aer_type = ', type,' name_aero=',name_aero
	169	CALL abort_physic('readaerosol','Error : aer_type parameter not accepted',1)
	170	END IF ! type
	171
	172
	173	END SUBROUTINE readaerosol
	174
	175
	176	SUBROUTINE init_aero_fromfile(flag_aerosol)
	177	USE netcdf
	178	USE mod_phys_lmdz_para
	179	USE mod_grid_phy_lmdz, ONLY: grid_type, unstructured
	180	#ifdef CPP_XIOS
	181	USE xios
	182	#endif
	183	IMPLICIT NONE
	184	INTEGER, INTENT(IN) :: flag_aerosol
	185	#ifdef CPP_XIOS
	186	REAL,ALLOCATABLE :: lat_src(:)
	187	REAL,ALLOCATABLE :: lon_src(:)
	188	CHARACTER(LEN=*),PARAMETER :: file_aerosol='aerosols.nat.nc'
	189	CHARACTER(LEN=*),PARAMETER :: file_so4='so4.nat.nc'
	190	INTEGER :: klev_src
	191	INTEGER :: ierr ,ncid, dimID, varid
	192	REAL :: null_array(0)
	193
	194	IF (flag_aerosol>0 .AND. grid_type==unstructured) THEN
	195
	196	IF (is_omp_root) THEN
	197
	198	IF (is_mpi_root) THEN
	199
	200	IF (nf90_open(TRIM(file_aerosol), NF90_NOWRITE, ncid) /= NF90_NOERR) THEN
	201	CALL check_err( nf90_open(TRIM(file_so4), NF90_NOWRITE, ncid), "pb open "//trim(file_so4) )
	202	ENDIF
	203
	204	! Read and test longitudes
	205	CALL check_err( nf90_inq_dimid(ncid, "lon", dimID),"pb inq dim lon")
	206	CALL check_err( nf90_inquire_dimension(ncid, dimID, len = nbp_lon_src),"pb inq dim lon")
	207	CALL check_err( nf90_inq_varid(ncid, 'lon', varid),"pb inq lon" )
	208	ALLOCATE(lon_src(nbp_lon_src))
	209	CALL check_err( nf90_get_var(ncid, varid, lon_src(:)),"pb get lon" )
	210
	211	! Read and test latitudes
	212	CALL check_err( nf90_inq_dimid(ncid, "lat", dimID),"pb inq dim lat")
	213	CALL check_err( nf90_inquire_dimension(ncid, dimID, len = nbp_lat_src),"pb inq dim lat")
	214	CALL check_err( nf90_inq_varid(ncid, 'lat', varid),"pb inq lat" )
	215	ALLOCATE(lat_src(nbp_lat_src))
	216	CALL check_err( nf90_get_var(ncid, varid, lat_src(:)),"pb get lat" )
	217	IF (nf90_inq_dimid(ncid, 'lev', dimid) /= NF90_NOERR) THEN
	218	IF (nf90_inq_dimid(ncid, 'presnivs', dimid)/= NF90_NOERR) THEN
	219	CALL check_err(nf90_inq_dimid(ncid, 'PRESNIVS', dimid),'dimension lev,PRESNIVS or presnivs not in file')
	220	ENDIF
	221	ENDIF
	222	CALL check_err( nf90_inquire_dimension(ncid, dimid, len = klev_src),"pb inq dim for PRESNIVS or lev" )
	223	CALL check_err( nf90_close(ncid),"pb in close" )
	224	ENDIF
	225
	226	CALL bcast_mpi(nbp_lat_src)
	227	CALL bcast_mpi(nbp_lon_src)
	228	CALL bcast_mpi(klev_src)
	229
	230	IF (is_mpi_root ) THEN
	231	CALL xios_set_domain_attr("domain_aerosol",nj_glo=nbp_lat_src, nj=nbp_lat_src, jbegin=0, latvalue_1d=lat_src)
	232	CALL xios_set_domain_attr("domain_aerosol",ni_glo=nbp_lon_src, ni=nbp_lon_src, ibegin=0, lonvalue_1d=lon_src)
	233	ELSE
	234	CALL xios_set_domain_attr("domain_aerosol",nj_glo=nbp_lat_src, nj=0, jbegin=0, latvalue_1d=null_array )
	235	CALL xios_set_domain_attr("domain_aerosol",ni_glo=nbp_lon_src, ni=0, ibegin=0, lonvalue_1d=null_array)
	236	ENDIF
	237	CALL xios_set_axis_attr("axis_aerosol",n_glo=klev_src)
	238	CALL xios_set_fieldgroup_attr("aerosols", enabled=.TRUE.)
	239
	240	ENDIF
	241
	242	ENDIF
	243	#endif
	244	END SUBROUTINE init_aero_fromfile
	245
	246
	247
	248
	249	SUBROUTINE get_aero_fromfile(varname, cyr, filename, klev_src, pt_ap, pt_b, pt_year, psurf_out, load_out)
	250	!****************************************************************************************
	251	! Read 12 month aerosol from file and distribute to local process on physical grid.
	252	! Vertical levels, klev_src, may differ from model levels if new file format.
	253	!
	254	! For mpi_root and master thread :
	255	! 1) Open file
	256	! 2) Find vertical dimension klev_src
	257	! 3) Read field month by month
	258	! 4) Close file
	259	! 5) Transform the global field from 2D(nbp_lon,nbp_lat) to 1D(klon_glo)
	260	! - Also the levels and the latitudes have to be inversed
	261	!
	262	! For all processes and threads :
	263	! 6) Scatter global field(klon_glo) to local process domain(klon)
	264	! 7) Test for negative values
	265	!****************************************************************************************
	266
	267	USE netcdf
	268	USE dimphy
	269	USE mod_grid_phy_lmdz, ONLY: nbp_lon_=>nbp_lon, nbp_lat_=>nbp_lat, klon_glo, &
	270	grid2Dto1D_glo, grid_type, unstructured
	271	USE mod_phys_lmdz_para
	272	USE iophy, ONLY : io_lon, io_lat
	273	USE print_control_mod, ONLY: lunout
	274	#ifdef CPP_XIOS
	275	USE xios
	276	#endif
	277	IMPLICIT NONE
	278
	279	! Input argumets
	280	CHARACTER(len=7), INTENT(IN) :: varname
	281	CHARACTER(len=4), INTENT(IN) :: cyr
	282	CHARACTER(len=8), INTENT(IN) :: filename
	283
	284	! Output arguments
	285	INTEGER, INTENT(OUT) :: klev_src ! Number of vertical levels in file
	286	REAL, POINTER, DIMENSION(:) :: pt_ap ! Pointer for describing the vertical levels
	287	REAL, POINTER, DIMENSION(:) :: pt_b ! Pointer for describing the vertical levels
	288	REAL, POINTER, DIMENSION(:,:,:) :: pt_year ! Pointer-variabale from file, 12 month, grid : klon,klev_src
	289	REAL, POINTER, DIMENSION(:,:,:) :: pt_year_mpi ! Pointer-variabale from file, 12 month, grid : klon,klev_src
	290	REAL, DIMENSION(klon,12), INTENT(OUT) :: psurf_out ! Surface pression for 12 months
	291	REAL, DIMENSION(klon_mpi,12) :: psurf_out_mpi ! Surface pression for 12 months
	292	REAL, DIMENSION(klon,12), INTENT(OUT) :: load_out ! Aerosol mass load in each column
	293	REAL, DIMENSION(klon_mpi,12) :: load_out_mpi ! Aerosol mass load in each column
	294	INTEGER :: nbr_tsteps ! number of month in file read
	295
	296	! Local variables
	297	CHARACTER(len=30) :: fname
	298	CHARACTER(len=30) :: cvar
	299	INTEGER :: ncid, dimid, varid
	300	INTEGER :: imth, i, j, k, ierr
	301	REAL :: npole, spole
	302	REAL, ALLOCATABLE, DIMENSION(:,:,:) :: varmth
	303	REAL, ALLOCATABLE, DIMENSION(:,:,:,:) :: varyear ! Global variable read from file, 12 month
	304	REAL, ALLOCATABLE, DIMENSION(:,:,:) :: varyear_glo1D !(klon_glo, klev_src, 12)
	305	REAL, ALLOCATABLE, DIMENSION(:) :: varktmp
	306
	307	REAL, ALLOCATABLE :: psurf_glo2D(:,:,:) ! Surface pression for 12 months on dynamics global grid
	308	REAL, DIMENSION(klon_glo,12) :: psurf_glo1D ! -"- on physical global grid
	309	REAL, ALLOCATABLE :: load_glo2D(:,:,:) ! Load for 12 months on dynamics global grid
	310	REAL, DIMENSION(klon_glo,12) :: load_glo1D ! -"- on physical global grid
	311	REAL, ALLOCATABLE, DIMENSION(:,:) :: vartmp
	312	REAL, ALLOCATABLE,DIMENSION(:) :: lon_src ! longitudes in file
	313	REAL, ALLOCATABLE,DIMENSION(:) :: lat_src, lat_src_inv ! latitudes in file
	314	LOGICAL :: new_file ! true if new file format detected
	315	LOGICAL :: invert_lat ! true if the field has to be inverted for latitudes
	316	INTEGER :: nbp_lon, nbp_lat
	317	LOGICAL,SAVE :: first=.TRUE.
	318	!$OMP THREADPRIVATE(first)
	319
	320	IF (grid_type==unstructured) THEN
	321	nbp_lon=nbp_lon_src
	322	nbp_lat=nbp_lat_src
	323	ELSE
	324	nbp_lon=nbp_lon_
	325	nbp_lat=nbp_lat_
	326	ENDIF
	327
	328	IF (is_mpi_root) THEN
	329
	330	ALLOCATE(psurf_glo2D(nbp_lon,nbp_lat,12))
	331	ALLOCATE(load_glo2D(nbp_lon,nbp_lat,12))
	332	ALLOCATE(vartmp(nbp_lon,nbp_lat))
	333	ALLOCATE(lon_src(nbp_lon))
	334	ALLOCATE(lat_src(nbp_lat))
	335	ALLOCATE(lat_src_inv(nbp_lat))
	336	ELSE
	337	ALLOCATE(varyear(0,0,0,0))
	338	ALLOCATE(psurf_glo2D(0,0,0))
	339	ALLOCATE(load_glo2D(0,0,0))
	340	ENDIF
	341
	342	! Deallocate pointers
	343	IF (ASSOCIATED(pt_ap)) DEALLOCATE(pt_ap)
	344	IF (ASSOCIATED(pt_b)) DEALLOCATE(pt_b)
	345
	346	IF (is_mpi_root .AND. is_omp_root) THEN
	347
	348	! 1) Open file
	349	!****************************************************************************************
	350	! Add suffix to filename
	351	fname = trim(filename)//cyr//'.nc'
	352
	353	WRITE(lunout,*) 'reading variable ',TRIM(varname),' in file ', TRIM(fname)
	354	CALL check_err( nf90_open(TRIM(fname), NF90_NOWRITE, ncid), "pb open "//trim(fname) )
	355
	356
	357	IF (grid_type/=unstructured) THEN
	358
	359	! Test for equal longitudes and latitudes in file and model
	360	!****************************************************************************************
	361	! Read and test longitudes
	362	CALL check_err( nf90_inq_varid(ncid, 'lon', varid),"pb inq lon" )
	363	CALL check_err( nf90_get_var(ncid, varid, lon_src(:)),"pb get lon" )
	364
	365	IF (maxval(ABS(lon_src - io_lon)) > 0.001) THEN
	366	WRITE(lunout,*) 'Problem in longitudes read from file : ',TRIM(fname)
	367	WRITE(lunout,*) 'longitudes in file ', TRIM(fname),' : ', lon_src
	368	WRITE(lunout,*) 'longitudes in model :', io_lon
	369
	370	CALL abort_physic('get_aero_fromfile', 'longitudes are not the same in file and model',1)
	371	END IF
	372
	373	! Read and test latitudes
	374	CALL check_err( nf90_inq_varid(ncid, 'lat', varid),"pb inq lat" )
	375	CALL check_err( nf90_get_var(ncid, varid, lat_src(:)),"pb get lat" )
	376
	377	! Invert source latitudes
	378	DO j = 1, nbp_lat
	379	lat_src_inv(j) = lat_src(nbp_lat +1 -j)
	380	END DO
	381
	382	IF (maxval(ABS(lat_src - io_lat)) < 0.001) THEN
	383	! Latitudes are the same
	384	invert_lat=.FALSE.
	385	ELSE IF (maxval(ABS(lat_src_inv - io_lat)) < 0.001) THEN
	386	! Inverted source latitudes correspond to model latitudes
	387	WRITE(lunout,*) 'latitudes will be inverted for file : ',TRIM(fname)
	388	invert_lat=.TRUE.
	389	ELSE
	390	WRITE(lunout,*) 'Problem in latitudes read from file : ',TRIM(fname)
	391	WRITE(lunout,*) 'latitudes in file ', TRIM(fname),' : ', lat_src
	392	WRITE(lunout,*) 'latitudes in model :', io_lat
	393	CALL abort_physic('get_aero_fromfile', 'latitudes do not correspond between file and model',1)
	394	END IF
	395	ENDIF
	396
	397	! 2) Check if old or new file is avalabale.
	398	! New type of file should contain the dimension 'lev'
	399	! Old type of file should contain the dimension 'PRESNIVS'
	400	!****************************************************************************************
	401	ierr = nf90_inq_dimid(ncid, 'lev', dimid)
	402	IF (ierr /= NF90_NOERR) THEN
	403	! Coordinate axe lev not found. Check for presnivs.
	404	ierr = nf90_inq_dimid(ncid, 'presnivs', dimid)
	405	IF (ierr /= NF90_NOERR) THEN
	406	ierr = nf90_inq_dimid(ncid, 'PRESNIVS', dimid)
	407	IF (ierr /= NF90_NOERR) THEN
	408	! Dimension PRESNIVS not found either
	409	CALL abort_physic('get_aero_fromfile', 'dimension lev,PRESNIVS or presnivs not in file',1)
	410	ELSE
	411	! Old file found
	412	new_file=.FALSE.
	413	WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will not be done'
	414	END IF
	415	ELSE
	416	! New file found
	417	new_file=.TRUE.
	418	WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will be done'
	419	ENDIF
	420	ELSE
	421	! New file found
	422	new_file=.TRUE.
	423	WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will be done'
	424	END IF
	425
	426	! 2) Find vertical dimension klev_src
	427	!****************************************************************************************
	428	CALL check_err( nf90_inquire_dimension(ncid, dimid, len = klev_src),"pb inq dim for PRESNIVS or lev" )
	429
	430	! Allocate variables depending on the number of vertical levels
	431	ALLOCATE(varmth(nbp_lon,nbp_lat, klev_src), varyear(nbp_lon,nbp_lat, klev_src, 12), stat=ierr)
	432	IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 1',1)
	433
	434	ALLOCATE(pt_ap(klev_src), pt_b(klev_src), varktmp(klev_src), stat=ierr)
	435	IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 2',1)
	436
	437	! 3) Read all variables from file
	438	! There is 2 options for the file structure :
	439	! new_file=TRUE : read varyear, ps, pt_ap and pt_b
	440	! new_file=FALSE : read varyear month by month
	441	!****************************************************************************************
	442
	443	IF (new_file) THEN
	444	! ++) Check number of month in file opened
	445	!**************************************************************************************************
	446	ierr = nf90_inq_dimid(ncid, 'TIME',dimid)
	447	if (ierr /= NF90_NOERR) THEN
	448	ierr = nf90_inq_dimid(ncid, 'time_counter', dimid)
	449	ENDIF
	450	CALL check_err( nf90_inquire_dimension(ncid, dimid, len = nbr_tsteps),"pb inq dim TIME or time_counter" )
	451	! IF (nbr_tsteps /= 12 .AND. nbr_tsteps /= 14) THEN
	452	IF (nbr_tsteps /= 12 ) THEN
	453	CALL abort_physic('get_aero_fromfile', 'not the right number of months in aerosol file read (should be 12 for the moment)' &
	454	,1)
	455	ENDIF
	456
	457	! ++) Read the aerosol concentration month by month and concatenate to total variable varyear
	458	!****************************************************************************************
	459	! Get variable id
	460	!CALL check_err( nf90_inq_varid(ncid, TRIM(varname), varid),"pb inq var "//TRIM(varname) )
	461	print *,'readaerosol ', TRIM(varname)
	462	IF ( nf90_inq_varid(ncid, TRIM(varname), varid) /= NF90_NOERR ) THEN
	463	! Variable is not there
	464	WRITE(lunout,*) 'Attention '//TRIM(varname)//' is not in aerosol input file'
	465	varyear(:,:,:,:)=0.0
	466	ELSE
	467	! Get the variable
	468	CALL check_err( nf90_get_var(ncid, varid, varyear(:,:,:,:)),"pb get var "//TRIM(varname) )
	469	ENDIF
	470
	471	! ++) Read surface pression, 12 month in one variable
	472	!****************************************************************************************
	473	! Get variable id
	474	CALL check_err( nf90_inq_varid(ncid, "ps", varid),"pb inq var ps" )
	475	! Get the variable
	476	CALL check_err( nf90_get_var(ncid, varid, psurf_glo2D),"pb get var ps" )
	477
	478	! ++) Read mass load, 12 month in one variable
	479	!****************************************************************************************
	480	! Get variable id
	481	!CALL check_err( nf90_inq_varid(ncid, "load_"//TRIM(varname), varid) ,"pb inq var load_"//TRIM(varname))
	482	IF ( nf90_inq_varid(ncid, "load_"//TRIM(varname), varid) /= NF90_NOERR ) THEN
	483	WRITE(lunout,*) 'Attention load_'//TRIM(varname)//' is not in aerosol input file'
	484	load_glo2D(:,:,:)=0.0
	485	ELSE
	486	! Get the variable
	487	CALL check_err( nf90_get_var(ncid, varid, load_glo2D),"pb get var load_"//TRIM(varname) )
	488	ENDIF
	489
	490	! ++) Read ap
	491	!****************************************************************************************
	492	! Get variable id
	493	CALL check_err( nf90_inq_varid(ncid, "ap", varid),"pb inq var ap" )
	494	! Get the variable
	495	CALL check_err( nf90_get_var(ncid, varid, pt_ap),"pb get var ap" )
	496
	497	! ++) Read b
	498	!****************************************************************************************
	499	! Get variable id
	500	CALL check_err( nf90_inq_varid(ncid, "b", varid),"pb inq var b" )
	501	! Get the variable
	502	CALL check_err( nf90_get_var(ncid, varid, pt_b),"pb get var b" )
	503
	504
	505
	506	ELSE ! old file
	507
	508	! ++) Read the aerosol concentration month by month and concatenate to total variable varyear
	509	!****************************************************************************************
	510	DO imth=1, 12
	511	IF (imth.EQ.1) THEN
	512	cvar=TRIM(varname)//'JAN'
	513	ELSE IF (imth.EQ.2) THEN
	514	cvar=TRIM(varname)//'FEB'
	515	ELSE IF (imth.EQ.3) THEN
	516	cvar=TRIM(varname)//'MAR'
	517	ELSE IF (imth.EQ.4) THEN
	518	cvar=TRIM(varname)//'APR'
	519	ELSE IF (imth.EQ.5) THEN
	520	cvar=TRIM(varname)//'MAY'
	521	ELSE IF (imth.EQ.6) THEN
	522	cvar=TRIM(varname)//'JUN'
	523	ELSE IF (imth.EQ.7) THEN
	524	cvar=TRIM(varname)//'JUL'
	525	ELSE IF (imth.EQ.8) THEN
	526	cvar=TRIM(varname)//'AUG'
	527	ELSE IF (imth.EQ.9) THEN
	528	cvar=TRIM(varname)//'SEP'
	529	ELSE IF (imth.EQ.10) THEN
	530	cvar=TRIM(varname)//'OCT'
	531	ELSE IF (imth.EQ.11) THEN
	532	cvar=TRIM(varname)//'NOV'
	533	ELSE IF (imth.EQ.12) THEN
	534	cvar=TRIM(varname)//'DEC'
	535	END IF
	536
	537	! Get variable id
	538	CALL check_err( nf90_inq_varid(ncid, TRIM(cvar), varid),"pb inq var "//TRIM(cvar) )
	539
	540	! Get the variable
	541	CALL check_err( nf90_get_var(ncid, varid, varmth),"pb get var "//TRIM(cvar) )
	542
	543	! Store in variable for the whole year
	544	varyear(:,:,:,imth)=varmth(:,:,:)
	545
	546	END DO
	547
	548	! Putting dummy
	549	psurf_glo2D(:,:,:) = not_valid
	550	load_glo2D(:,:,:) = not_valid
	551	pt_ap(:) = not_valid
	552	pt_b(:) = not_valid
	553
	554	END IF
	555
	556	! 4) Close file
	557	!****************************************************************************************
	558	CALL check_err( nf90_close(ncid),"pb in close" )
	559
	560
	561	! 5) Transform the global field from 2D(nbp_lon,nbp_lat) to 1D(klon_glo)
	562	!****************************************************************************************
	563	! Test if vertical levels have to be inversed
	564
	565	IF ((pt_b(1) < pt_b(klev_src)) .OR. .NOT. new_file) THEN
	566	! WRITE(lunout,*) 'Vertical axis in file ',TRIM(fname), ' needs to be inverted'
	567	! WRITE(lunout,*) 'before pt_ap = ', pt_ap
	568	! WRITE(lunout,*) 'before pt_b = ', pt_b
	569
	570	! Inverse vertical levels for varyear
	571	DO imth=1, 12
	572	varmth(:,:,:) = varyear(:,:,:,imth) ! use varmth temporarly
	573	DO k=1, klev_src
	574	DO j=1, nbp_lat
	575	DO i=1, nbp_lon
	576	varyear(i,j,k,imth) = varmth(i,j,klev_src+1-k)
	577	END DO
	578	END DO
	579	END DO
	580	END DO
	581
	582	! Inverte vertical axes for pt_ap and pt_b
	583	varktmp(:) = pt_ap(:)
	584	DO k=1, klev_src
	585	pt_ap(k) = varktmp(klev_src+1-k)
	586	END DO
	587
	588	varktmp(:) = pt_b(:)
	589	DO k=1, klev_src
	590	pt_b(k) = varktmp(klev_src+1-k)
	591	END DO
	592	WRITE(lunout,*) 'after pt_ap = ', pt_ap
	593	WRITE(lunout,*) 'after pt_b = ', pt_b
	594
	595	ELSE
	596	WRITE(lunout,*) 'Vertical axis in file ',TRIM(fname), ' is ok, no vertical inversion is done'
	597	WRITE(lunout,*) 'pt_ap = ', pt_ap
	598	WRITE(lunout,*) 'pt_b = ', pt_b
	599	END IF
	600
	601
	602	IF (grid_type/=unstructured) THEN
	603	! - Invert latitudes if necessary
	604	DO imth=1, 12
	605	IF (invert_lat) THEN
	606
	607	! Invert latitudes for the variable
	608	varmth(:,:,:) = varyear(:,:,:,imth) ! use varmth temporarly
	609	DO k=1,klev_src
	610	DO j=1,nbp_lat
	611	DO i=1,nbp_lon
	612	varyear(i,j,k,imth) = varmth(i,nbp_lat+1-j,k)
	613	END DO
	614	END DO
	615	END DO
	616
	617	! Invert latitudes for surface pressure
	618	vartmp(:,:) = psurf_glo2D(:,:,imth)
	619	DO j=1,nbp_lat
	620	DO i=1,nbp_lon
	621	psurf_glo2D(i,j,imth)= vartmp(i,nbp_lat+1-j)
	622	END DO
	623	END DO
	624
	625	! Invert latitudes for the load
	626	vartmp(:,:) = load_glo2D(:,:,imth)
	627	DO j=1,nbp_lat
	628	DO i=1,nbp_lon
	629	load_glo2D(i,j,imth)= vartmp(i,nbp_lat+1-j)
	630	END DO
	631	END DO
	632	END IF ! invert_lat
	633
	634	! Do zonal mead at poles and distribut at whole first and last latitude
	635	DO k=1, klev_src
	636	npole=0. ! North pole, j=1
	637	spole=0. ! South pole, j=nbp_lat
	638	DO i=1,nbp_lon
	639	npole = npole + varyear(i,1,k,imth)
	640	spole = spole + varyear(i,nbp_lat,k,imth)
	641	END DO
	642	npole = npole/REAL(nbp_lon)
	643	spole = spole/REAL(nbp_lon)
	644	varyear(:,1, k,imth) = npole
	645	varyear(:,nbp_lat,k,imth) = spole
	646	END DO
	647	END DO ! imth
	648
	649	ALLOCATE(varyear_glo1D(klon_glo, klev_src, 12), stat=ierr)
	650	IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 3',1)
	651
	652	! Transform from 2D to 1D field
	653	CALL grid2Dto1D_glo(varyear,varyear_glo1D)
	654	CALL grid2Dto1D_glo(psurf_glo2D,psurf_glo1D)
	655	CALL grid2Dto1D_glo(load_glo2D,load_glo1D)
	656
	657	ENDIF
	658
	659	ELSE
	660	ALLOCATE(varyear_glo1D(0,0,0))
	661	END IF ! is_mpi_root .AND. is_omp_root
	662
	663	!$OMP BARRIER
	664
	665	! 6) Distribute to all processes
	666	! Scatter global field(klon_glo) to local process domain(klon)
	667	! and distribute klev_src to all processes
	668	!****************************************************************************************
	669
	670	! Distribute klev_src
	671	CALL bcast(klev_src)
	672
	673	! Allocate and distribute pt_ap and pt_b
	674	IF (.NOT. ASSOCIATED(pt_ap)) THEN ! if pt_ap is allocated also pt_b is allocated
	675	ALLOCATE(pt_ap(klev_src), pt_b(klev_src), stat=ierr)
	676	IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 4',1)
	677	END IF
	678	CALL bcast(pt_ap)
	679	CALL bcast(pt_b)
	680
	681	! Allocate space for output pointer variable at local process
	682	IF (ASSOCIATED(pt_year)) DEALLOCATE(pt_year)
	683	ALLOCATE(pt_year(klon, klev_src, 12), stat=ierr)
	684	ALLOCATE(pt_year_mpi(klon_mpi, klev_src, 12), stat=ierr)
	685	IF (ierr /= 0) CALL abort_physic('get_aero_fromfile', 'pb in allocation 5',1)
	686
	687	IF (grid_type==unstructured) THEN
	688	#ifdef CPP_XIOS
	689	IF (is_omp_master) THEN
	690	CALL xios_send_field(TRIM(varname)//"_in",varyear)
	691	CALL xios_recv_field(TRIM(varname)//"_out",pt_year_mpi)
	692	CALL xios_send_field("load_"//TRIM(varname)//"_in",load_glo2D)
	693	CALL xios_recv_field("load_"//TRIM(varname)//"_out",load_out_mpi)
	694	IF (first) THEN
	695	ALLOCATE(psurf_interp(klon_mpi,12))
	696	CALL xios_send_field("psurf_aerosol_in",psurf_glo2D)
	697	CALL xios_recv_field("psurf_aerosol_out",psurf_interp)
	698	ENDIF
	699	ENDIF
	700	CALL scatter_omp(pt_year_mpi,pt_year)
	701	CALL scatter_omp(load_out_mpi,load_out)
	702	CALL scatter_omp(psurf_interp,psurf_out)
	703	first=.FALSE.
	704	#endif
	705	ELSE
	706	! Scatter global field to local domain at local process
	707	CALL scatter(varyear_glo1D, pt_year)
	708	CALL scatter(psurf_glo1D, psurf_out)
	709	CALL scatter(load_glo1D, load_out)
	710	ENDIF
	711	! 7) Test for negative values
	712	!****************************************************************************************
	713	IF (MINVAL(pt_year) < 0.) THEN
	714	WRITE(lunout,*) 'Warning! Negative values read from file :', fname
	715	END IF
	716
	717	END SUBROUTINE get_aero_fromfile
	718
	719
	720	SUBROUTINE check_err(status,text)
	721	USE netcdf
	722	USE print_control_mod, ONLY: lunout
	723	IMPLICIT NONE
	724
	725	INTEGER, INTENT (IN) :: status
	726	CHARACTER(len=*), INTENT (IN), OPTIONAL :: text
	727
	728	IF (status /= NF90_NOERR) THEN
	729	WRITE(lunout,*) 'Error in get_aero_fromfile, netcdf error code = ',status
	730	IF (PRESENT(text)) THEN
	731	WRITE(lunout,*) 'Error in get_aero_fromfile : ',text
	732	END IF
	733	CALL abort_physic('get_aero_fromfile',trim(nf90_strerror(status)),1)
	734	END IF
	735
	736	END SUBROUTINE check_err
	737
	738
	739	END MODULE readaerosol_mod

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