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regr_horiz_time_climoz_m.F90 @ 3863

Last change on this file since 3863 was 3413, checked in by Laurent Fairhead, 6 years ago
Inclusion of Yann's latest (summer/fall 2018) modifications for convergence of DYNAMICO/LMDZ physics YM/LF
File size: 32.5 KB

Line
1	MODULE regr_horiz_time_climoz_m
2
3	USE interpolation, ONLY: locate
4	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat, grid_type, unstructured
5	USE nrtype, ONLY: pi
6	USE netcdf, ONLY: NF90_CLOBBER, NF90_FLOAT, NF90_GET_VAR, NF90_OPEN, &
7	NF90_NOWRITE, NF90_NOERR, NF90_GET_ATT, NF90_GLOBAL
8	USE netcdf95, ONLY: NF95_DEF_DIM, NF95_INQ_DIMID, NF95_INQUIRE_DIMENSION, &
9	NF95_DEF_VAR, NF95_INQ_VARID, NF95_INQUIRE_VARIABLE, &
10	NF95_OPEN, NF95_CREATE, NF95_GET_ATT, NF95_GW_VAR, HANDLE_ERR, &
11	NF95_CLOSE, NF95_ENDDEF, NF95_PUT_ATT, NF95_PUT_VAR, NF95_COPY_ATT
12	USE print_control_mod, ONLY: lunout
13	USE dimphy
14	IMPLICIT NONE
15	PRIVATE
16	PUBLIC :: regr_horiz_time_climoz
17	REAL, PARAMETER :: deg2rad=pi/180.
18	CHARACTER(LEN=13), PARAMETER :: vars_in(2)=['tro3 ','tro3_daylight']
19
20	INTEGER :: nlat_ou, nlon_ou
21	REAL, ALLOCATABLE :: latitude_glo(:)
22	!$OMP THREADPRIVATE(latitude_glo)
23	INTEGER, ALLOCATABLE :: ind_cell_glo_glo(:)
24	!$OMP THREADPRIVATE(ind_cell_glo_glo)
25
26	CONTAINS
27
28	!-------------------------------------------------------------------------------
29	!
30	SUBROUTINE regr_horiz_time_climoz(read_climoz,interpt)
31	!
32	!-------------------------------------------------------------------------------
33	! Purpose: Regrid horizontally and in time zonal or 3D ozone climatologies.
34	! * Read ozone climatology from netcdf file
35	! * Regrid it horizontaly to LMDZ grid (quasi-conservative method)
36	! * If interpt=T, interpolate linearly in time (one record each day)
37	! If interpt=F, keep original time sampling (14 months).
38	! * Save it to a new netcdf file.
39	!-------------------------------------------------------------------------------
40	! Remarks:
41	! * Up to 2 variables treated: "tro3" and "tro3_daylight" (if read_climoz=2)
42	! * Input fields coordinates: (longitudes, latitudes, pressure_levels, time)
43	! * Output grid cells centers coordinates given by [rlonv,] rlatu.
44	! * Output grid cells edges coordinates given by [rlonu,] rlatv.
45	! * Input file [longitudes and] latitudes given in degrees.
46	! * Input file pressure levels are given in Pa or hPa.
47	! * All coordinates variables are stricly monotonic.
48	! * Monthly fields are interpolated linearly in time to get daily values.
49	! * Fields are known at the middle of the months, so interpolation requires an
50	! additional record both for 1st half of january and 2nd half of december:
51	! - For a 14-records "climoz.nc": records 1 and 14.
52	! - For 12-records files:
53	! record 12 of "climoz_m.nc" if available, or record 1 of "climoz.nc".
54	! record 1 of "climoz_p.nc" if available, or record 12 of "climoz.nc".
55	! * Calendar is taken into account to get one record each day (not 360 always).
56	! * Missing values are filled in from sky to ground by copying lowest valid one.
57	! Attribute "missing_value" or "_FillValue" must be present in input file.
58	!-------------------------------------------------------------------------------
59	USE assert_m, ONLY: assert
60	USE cal_tools_m, ONLY: year_len, mid_month
61	!! USE control_mod, ONLY: anneeref
62	USE time_phylmdz_mod, ONLY: annee_ref
63	USE ioipsl, ONLY: ioget_year_len, ioget_calendar
64	USE regr_conserv_m, ONLY: regr_conserv
65	USE regr_lint_m, ONLY: regr_lint
66	USE regular_lonlat_mod, ONLY: boundslon_reg, boundslat_reg, south, west, east
67	USE slopes_m, ONLY: slopes
68	USE xios
69	USE mod_phys_lmdz_para, ONLY: is_mpi_root, is_master, is_omp_master, gather, gather_mpi, bcast_mpi, klon_mpi
70	USE geometry_mod, ONLY : latitude_deg, ind_cell_glo
71	USE mod_grid_phy_lmdz, ONLY: klon_glo
72
73	!-------------------------------------------------------------------------------
74	! Arguments:
75	INTEGER, INTENT(IN) :: read_climoz ! read ozone climatology, 1 or 2
76	! 1: read a single ozone climatology used day and night
77	! 2: same + read also a daylight climatology
78	LOGICAL, INTENT(IN) :: interpt ! TRUE => daily interpolation
79	! FALSE => no interpolation (14 months)
80	!-------------------------------------------------------------------------------
81	! Local variables:
82
83	!--- Input files variables
84	INTEGER :: nlon_in ! Number of longitudes
85	INTEGER :: nlat_in ! Number of latitudes
86	INTEGER :: nlev_in ! Number of pressure levels
87	INTEGER :: nmth_in ! Number of months
88	REAL, POINTER :: lon_in(:) ! Longitudes (ascending order, rad)
89	REAL, POINTER :: lat_in(:) ! Latitudes (ascending order, rad)
90	REAL, POINTER :: lev_in(:) ! Pressure levels (ascen. order, hPa)
91	REAL, ALLOCATABLE :: lon_in_edge(:) ! Longitude intervals edges
92	! (ascending order, / )
93	REAL, ALLOCATABLE :: sinlat_in_edge(:) ! Sinus of latitude intervals edges
94	! (ascending order, / )
95	LOGICAL :: ldec_lon, ldec_lat, ldec_lev ! Decreasing order in input file
96	CHARACTER(LEN=20) :: cal_in ! Calendar
97	REAL, ALLOCATABLE :: o3_in3(:,:,:,:,:) ! Ozone climatologies
98	REAL, ALLOCATABLE :: o3_in3bis(:,:,:,:,:) ! Ozone climatologies
99	REAL, ALLOCATABLE :: o3_in2 (:,:,:,:) ! Ozone climatologies
100	REAL, ALLOCATABLE :: o3_in2bis(:,:,:,:,:) ! Ozone climatologies
101	! last index: 1 for the day-night average, 2 for the daylight field.
102	REAL :: NaN
103
104	!--- Partially or totally regridded variables (:,:,nlev_in,:,read_climoz)
105	REAL, ALLOCATABLE :: o3_regr_lon (:,:,:,:,:) ! (nlon_ou,nlat_in,:,0:13 ,:)
106	REAL, ALLOCATABLE :: o3_regr_lonlat(:,:,:,:,:) ! (nlon_ou,nlat_ou,:,0:13 ,:)
107	REAL, ALLOCATABLE :: o3_out3 (:,:,:,:,:) ! (nlon_ou,nlat_ou,:,ntim_ou,:)
108	REAL, ALLOCATABLE :: o3_out3_glo (:,:,:,:) ! (nbp_lat,:,ntim_ou,:)
109	REAL, ALLOCATABLE :: o3_regr_lat (:,:,:,:) ! (nlat_in,:,0:13 ,:)
110	REAL, ALLOCATABLE :: o3_out2 (:,:,:,:) ! (nlat_ou,:,ntim_ou,:)
111	REAL, ALLOCATABLE :: o3_out2_glo (:,:,:,:) ! (nbp_lat,:,ntim_ou,:)
112	REAL, ALLOCATABLE :: o3_out (:,:,:,:) ! (nbp_lat,:,ntim_ou,:)
113	! Dimension number \| Interval \| Contains \| For variables:
114	! 1 (longitude) \| [rlonu(i-1), rlonu(i)] \| rlonv(i) \| all
115	! 2 (latitude) \| [rlatv(j), rlatv(j-1)] \| rlatu(j) \| all but o3_regr_lon
116	! 3 (press level) \| \| lev(k) \| all
117	! Note that rlatv(0)=pi/2 and rlatv(nlat_ou)=-pi/2.
118	! Dimension 4 is: month number (all vars but o3_out)
119	! days elapsed since Jan. 1st 0h at mid-day (o3_out only)
120	REAL, ALLOCATABLE :: v1(:)
121
122	!--- For NetCDF:
123	INTEGER :: fID_in_m, fID_in, levID_ou, dimid, vID_in(read_climoz), ntim_ou
124	INTEGER :: fID_in_p, fID_ou, timID_ou, varid, vID_ou(read_climoz), ndims, ncerr
125	INTEGER, POINTER :: dIDs(:)
126	CHARACTER(LEN=20) :: cal_ou !--- Calendar; no time inter => same as input
127	CHARACTER(LEN=80) :: press_unit !--- Pressure unit
128	REAL :: tmidmonth(0:13) !--- Elapsed days since Jan-1 0h at mid-months
129	! Additional records 0, 13 for interpolation
130	REAL, ALLOCATABLE :: tmidday(:) !--- Output times (mid-days since Jan 1st 0h)
131	LOGICAL :: lprev, lnext !--- Flags: previous/next files are present
132	LOGICAL :: l3D, l2D !--- Flag: input fields are 3D or zonal
133	INTEGER :: ii, i, j, k, l, m, dln, ib, ie, iv, dx1, dx2
134	INTEGER, ALLOCATABLE :: sta(:), cnt(:)
135	CHARACTER(LEN=80) :: sub, dim_nam, msg
136	REAL :: null_array(0)
137	LOGICAL,SAVE :: first=.TRUE.
138	!$OMP THREADPRIVATE(first)
139	REAL, ALLOCATABLE :: test_o3_in(:,:)
140	REAL, ALLOCATABLE :: test_o3_out(:)
141
142
143	IF (grid_type==unstructured) THEN
144	IF (first) THEN
145	IF (is_master) THEN
146	ALLOCATE(latitude_glo(klon_glo))
147	ALLOCATE(ind_cell_glo_glo(klon_glo))
148	ELSE
149	ALLOCATE(latitude_glo(0))
150	ALLOCATE(ind_cell_glo_glo(0))
151	ENDIF
152	CALL gather(latitude_deg, latitude_glo)
153	CALL gather(ind_cell_glo, ind_cell_glo_glo)
154	ENDIF
155	ENDIF
156
157	IF (is_omp_master) THEN
158	nlat_ou=nbp_lat
159	nlon_ou=nbp_lon
160
161	!-------------------------------------------------------------------------------
162	IF (is_mpi_root) THEN
163	sub="regr_horiz_time_climoz"
164	WRITE(lunout,*)"Call sequence information: "//TRIM(sub)
165	CALL assert(read_climoz == 1 .OR. read_climoz == 2, "regr_lat_time_climoz")
166
167	CALL NF95_OPEN("climoz.nc" , NF90_NOWRITE, fID_in)
168	lprev=NF90_OPEN("climoz_m.nc", NF90_NOWRITE, fID_in_m)==NF90_NOERR
169	lnext=NF90_OPEN("climoz_p.nc", NF90_NOWRITE, fID_in_p)==NF90_NOERR
170
171	!--- Get coordinates from the input file. Converts lon/lat in radians.
172	! Few inversions because "regr_conserv" and gcm need ascending vectors.
173	CALL NF95_INQ_VARID(fID_in, vars_in(1), varid)
174	CALL NF95_INQUIRE_VARIABLE(fID_in, varid, dimids=dIDs, ndims=ndims)
175	l3D=ndims==4; l2D=ndims==3
176	IF(l3D) WRITE(lunout,*)"Input files contain full 3D ozone fields."
177	IF(l2D) WRITE(lunout,*)"Input files contain zonal 2D ozone fields."
178	DO i=1,ndims
179	CALL NF95_INQUIRE_DIMENSION(fID_in, dIDs(i), name=dim_nam, nclen=dln)
180	CALL NF95_INQ_VARID(fID_in, dim_nam, varid)
181	ii=i; IF(l2D) ii=i+1 !--- ndims==3:NO LONGITUDE
182	SELECT CASE(ii)
183	CASE(1) !--- LONGITUDE
184	CALL NF95_GW_VAR(fID_in, varid, lon_in)
185	ldec_lon=lon_in(1)>lon_in(dln); IF(ldec_lon) lon_in=lon_in(dln:1:-1)
186	nlon_in=dln; lon_in=lon_in*deg2rad
187	CASE(2) !--- LATITUDE
188	CALL NF95_GW_VAR(fID_in, varid, lat_in)
189	ldec_lat=lat_in(1)>lat_in(dln); IF(ldec_lat) lat_in=lat_in(dln:1:-1)
190	nlat_in=dln; lat_in=lat_in*deg2rad
191	CASE(3) !--- PRESSURE LEVELS
192	CALL NF95_GW_VAR(fID_in, varid, lev_in)
193	ldec_lev=lev_in(1)>lev_in(dln); IF(ldec_lev) lev_in=lev_in(dln:1:-1)
194	nlev_in=dln
195	CALL NF95_GET_ATT(fID_in, varid, "units", press_unit)
196	k=LEN_TRIM(press_unit)
197	DO WHILE(ICHAR(press_unit(k:k))==0)
198	press_unit(k:k)=' '; k=LEN_TRIM(press_unit) !--- REMOVE NULL END CHAR
199	END DO
200	IF(press_unit == "Pa") THEN
201	lev_in = lev_in/100. !--- CONVERT TO hPa
202	ELSE IF(press_unit /= "hPa") THEN
203	CALL abort_physic(sub, "the only recognized units are Pa and hPa.",1)
204	END IF
205	CASE(4) !--- TIME
206	CALL NF95_INQUIRE_DIMENSION(fID_in, dIDs(i), nclen=nmth_in)
207	cal_in='gregorian'
208	IF(NF90_GET_ATT(fID_in, varid, 'calendar', cal_in)/=NF90_NOERR) &
209	WRITE(lunout,*)'WARNING: missing "calendar" attribute for "'// &
210	TRIM(dim_nam)//'" in "climoz.nc". Choosing default: "gregorian".'
211	k=LEN_TRIM(cal_in)
212	DO WHILE(ICHAR(cal_in(k:k))==0)
213	cal_in(k:k)=' '; k=LEN_TRIM(cal_in) !--- REMOVE NULL END CHAR
214	END DO
215	END SELECT
216	END DO
217
218	!--- Prepare quantities for time interpolation
219	tmidmonth=mid_month(annee_ref, cal_in)
220	IF(interpt) THEN
221	ntim_ou=ioget_year_len(annee_ref)
222	ALLOCATE(tmidday(ntim_ou))
223	tmidday=[(REAL(k)-0.5,k=1,ntim_ou)]
224	CALL ioget_calendar(cal_ou)
225	ELSE
226	ntim_ou=14
227	cal_ou=cal_in
228	END IF
229	ENDIF
230
231	IF (grid_type==unstructured) THEN
232	CALL bcast_mpi(nlon_in)
233	CALL bcast_mpi(nlat_in)
234	CALL bcast_mpi(nlev_in)
235	CALL bcast_mpi(l3d)
236	CALL bcast_mpi(tmidmonth)
237	CALL bcast_mpi(tmidday)
238	CALL bcast_mpi(ntim_ou)
239
240	IF (is_mpi_root) THEN
241	CALL xios_set_domain_attr("domain_climoz",nj_glo=nlat_in, nj=nlat_in, jbegin=0, latvalue_1d=lat_in/deg2rad)
242	IF (l3D) THEN
243	CALL xios_set_domain_attr("domain_climoz",ni_glo=nlon_in, ni=nlon_in, ibegin=0, lonvalue_1d=lon_in/deg2rad)
244	ELSE
245	CALL xios_set_domain_attr("domain_climoz",ni_glo=8, ni=8, ibegin=0, lonvalue_1d = (/ 0.,45.,90.,135.,180.,225.,270., 315. /))
246	ENDIF
247	ELSE
248	CALL xios_set_domain_attr("domain_climoz",nj_glo=nlat_in, nj=0, jbegin=0, latvalue_1d=null_array )
249	IF (l3D) THEN
250	CALL xios_set_domain_attr("domain_climoz",ni_glo=nlon_in, ni=0, ibegin=0, lonvalue_1d=null_array)
251	ELSE
252	CALL xios_set_domain_attr("domain_climoz",ni_glo=8, ni=0, ibegin=0, lonvalue_1d=null_array)
253	ENDIF
254	ENDIF
255	CALL xios_set_axis_attr("axis_climoz", n_glo=nlev_in)
256	CALL xios_set_axis_attr("time_axis_climoz", n_glo=ntim_ou)
257	CALL xios_set_axis_attr("time_axis_climoz", n_glo=ntim_ou)
258	CALL xios_set_axis_attr("tr_climoz", n_glo=read_climoz)
259	CALL xios_set_field_attr("tro3_out", enabled=.TRUE.)
260	CALL xios_set_field_attr("tro3_out", enabled=.TRUE.)
261
262	IF (first) THEN
263	first=.FALSE.
264	RETURN
265	ENDIF
266	ENDIF
267
268
269	IF (is_mpi_root) THEN
270	!--- Longitudes management:
271	! * Need to shift data if the origin of input file longitudes /= -pi
272	! * Need to add some margin in longitude to ensure input interval contains
273	! all the output intervals => at least one longitudes slice has to be
274	! duplicated, possibly more for undersampling.
275	IF(l3D) THEN
276	IF (grid_type==unstructured) THEN
277	dx2=0
278	ELSE
279	!--- Compute input edges longitudes vector (no end point yet)
280	ALLOCATE(v1(nlon_in+1))
281	v1(1)=(lon_in(nlon_in)+lon_in(1))/2.-pi
282	FORALL(i=2:nlon_in) v1(i)=(lon_in(i-1)+lon_in(i))/2.
283	v1(nlon_in+1)=v1(1)+2.*pi
284	DEALLOCATE(lon_in)
285
286	!--- Shift input longitudes vector until it contains first output point boundslon_reg(1,west)
287	v1=v1+2piREAL(FLOOR((boundslon_reg(1,west)-v1(1))/(2.*pi)))
288
289	!--- Ensure first input longitudes interval contains first output point boundslon_reg(1,west)
290	dx1=locate(v1,boundslon_reg(1,west))-1
291	v1=CSHIFT(v1,SHIFT=dx1,DIM=1)
292	v1(nlon_in-dx1+1:)=v1(nlon_in-dx1+1:)+2.*pi
293
294	!--- Extend input longitudes vector until last interval contains boundslon_reg(nlat_ou,east)
295	dx2=0; DO WHILE(v1(1+dx2)+2.*pi<boundslon_reg(nlon_ou,east)); dx2=dx2+1; END DO
296
297	!--- Final edges longitudes vector (with margin and end point)
298	ALLOCATE(lon_in_edge(nlon_in+dx2+1)); lon_in_edge=[v1,v1(2:1+dx2)+2.*pi]
299	DEALLOCATE(v1)
300	ENDIF
301	END IF
302
303	!--- Compute sinus of intervals edges latitudes:
304	ALLOCATE(sinlat_in_edge(nlat_in+1))
305	sinlat_in_edge(1) = -1. ; sinlat_in_edge(nlat_in+1) = 1.
306	FORALL(j=2:nlat_in) sinlat_in_edge(j)=SIN((lat_in(j-1)+lat_in(j))/2.)
307	DEALLOCATE(lat_in)
308
309
310
311	!--- Check for contiguous years:
312	ib=0; ie=13
313	IF(nmth_in == 14) THEN; lprev=.FALSE.; lnext=.FALSE.
314	WRITE(lunout,*)'Using 14 months ozone climatology "climoz.nc"...'
315	ELSE
316	IF( lprev) WRITE(lunout,*)'Using "climoz_m.nc" last record (previous year).'
317	IF(.NOT.lprev) WRITE(lunout,*)"No previous year file ; assuming periodicity."
318	IF( lnext) WRITE(lunout,*)'Using "climoz_p.nc" first record (next year).'
319	IF(.NOT.lnext) WRITE(lunout,*)"No next year file ; assuming periodicity."
320	IF(.NOT.lprev) ib=1
321	IF(.NOT.lnext) ie=12
322	END IF
323	ALLOCATE(sta(ndims),cnt(ndims)); sta(:)=1
324	IF(l3D) cnt=[nlon_in,nlat_in,nlev_in,1]
325	IF(l2D) cnt=[ nlat_in,nlev_in,1]
326	IF(l3D) ALLOCATE(o3_in3(nlon_in+dx2,nlat_in,nlev_in,ib:ie,read_climoz))
327	IF(l2D) ALLOCATE(o3_in2( nlat_in,nlev_in,ib:ie,read_climoz))
328
329	!--- Read full current file and one record each available contiguous file
330	DO iv=1,read_climoz
331	msg=TRIM(sub)//" NF90_GET_VAR "//TRIM(vars_in(iv))
332	CALL NF95_INQ_VARID(fID_in, vars_in(1), vID_in(iv))
333	IF(l3D) ncerr=NF90_GET_VAR(fID_in, vID_in(iv), o3_in3(1:nlon_in,:,:,1:12,iv))
334	IF(l2D) ncerr=NF90_GET_VAR(fID_in, vID_in(iv), o3_in2( :,:,1:12,iv))
335	CALL handle_err(TRIM(msg), ncerr, fID_in)
336	IF(lprev) THEN; sta(ndims)=12
337	CALL NF95_INQ_VARID(fID_in_m, vars_in(1), vID_in(iv))
338	IF(l3D) ncerr=NF90_GET_VAR(fID_in_m,vID_in(iv),o3_in3(1:nlon_in,:,:, 0,iv),sta,cnt)
339	IF(l2d) ncerr=NF90_GET_VAR(fID_in_m,vID_in(iv),o3_in2( :,:, 0,iv),sta,cnt)
340	CALL handle_err(TRIM(msg)//" previous", ncerr, fID_in_m)
341	END IF
342	IF(lnext) THEN; sta(ndims)=1
343	CALL NF95_INQ_VARID(fID_in_p, vars_in(1), vID_in(iv))
344	IF(l3D) ncerr=NF90_GET_VAR(fID_in_p,vID_in(iv),o3_in3(1:nlon_in,:,:,13,iv),sta,cnt)
345	IF(l2D) ncerr=NF90_GET_VAR(fID_in_p,vID_in(iv),o3_in2( :,:,13,iv),sta,cnt)
346	CALL handle_err(TRIM(msg)//" next", ncerr, fID_in_p)
347	END IF
348	END DO
349	IF(lprev.OR.lnext) DEALLOCATE(sta,cnt)
350	IF(lprev) CALL NF95_CLOSE(fID_in_m)
351	IF(lnext) CALL NF95_CLOSE(fID_in_p)
352
353	!--- Revert decreasing coordinates vector
354	IF(l3D) THEN
355	IF(ldec_lon) o3_in3(1:nlon_in,:,:,:,:) = o3_in3(nlon_in:1:-1,:,:,:,:)
356	IF(ldec_lat) o3_in3 = o3_in3(:,nlat_in:1:-1,:,:,:)
357	IF(ldec_lev) o3_in3 = o3_in3(:,:,nlev_in:1:-1,:,:)
358
359	IF (grid_type /= unstructured) THEN
360	!--- Shift values for longitude and duplicate some longitudes slices
361	o3_in3(1:nlon_in,:,:,:,:)=CSHIFT(o3_in3(1:nlon_in,:,:,:,:),SHIFT=dx1,DIM=1)
362	o3_in3(nlon_in+1:nlon_in+dx2,:,:,:,:)=o3_in3(1:dx2,:,:,:,:)
363	ENDIF
364	ELSE
365	IF(ldec_lat) o3_in2 = o3_in2( nlat_in:1:-1,:,:,:)
366	IF(ldec_lev) o3_in2 = o3_in2( :,nlev_in:1:-1,:,:)
367	END IF
368
369	!--- Deal with missing values
370	DO m=1, read_climoz
371	WRITE(msg,'(a,i0)')"regr_lat_time_climoz: field Nr.",m
372	IF(NF90_GET_ATT(fID_in,vID_in(m),"missing_value",NaN)/= NF90_NOERR) THEN
373	IF(NF90_GET_ATT(fID_in, vID_in(m),"_FillValue",NaN)/= NF90_NOERR) THEN
374	WRITE(lunout,*)TRIM(msg)//": no missing value attribute found."; CYCLE
375	END IF
376	END IF
377	WRITE(lunout,*)TRIM(msg)//": missing value attribute found."
378	WRITE(lunout,*)"Trying to fill in NaNs ; a full field would be better."
379
380	!--- Check top layer contains no NaNs & search NaNs from top to ground
381	msg=TRIM(sub)//": NaNs in top layer !"
382	IF(l3D) THEN
383	IF(ANY(o3_in3(:,:,1,:,m)==NaN)) CALL abort_physic(sub,msg,1)
384	DO k = 2,nlev_in
385	WHERE(o3_in3(:,:,k,:,m)==NaN) o3_in3(:,:,k,:,m)=o3_in3(:,:,k-1,:,m)
386	END DO
387	ELSE
388	IF(ANY(o3_in2( :,1,:,m)==NaN)) THEN
389	WRITE(lunout,*)msg
390	!--- Fill in latitudes where all values are missing
391	DO l=1,nmth_in
392	!--- Next to south pole
393	j=1; DO WHILE(o3_in2(j,1,l,m)==NaN); j=j+1; END DO
394	IF(j>1) &
395	o3_in2(:j-1,:,l,m)=SPREAD(o3_in2(j,:,l,m),DIM=1,ncopies=j-1)
396	!--- Next to north pole
397	j=nlat_in; DO WHILE(o3_in2(j,1,l,m)==NaN); j=j+1; END DO
398	IF(j<nlat_in) &
399	o3_in2(j+1:,:,l,m)=SPREAD(o3_in2(j,:,l,m),DIM=1,ncopies=nlat_in-j)
400	END DO
401	END IF
402
403	!--- Fill in high latitudes missing values
404	!--- Highest level been filled-in, so has always valid values.
405	DO k = 2,nlev_in
406	WHERE(o3_in2(:,k,:,m)==NaN) o3_in2(:,k,:,m)=o3_in2(:,k-1,:,m)
407	END DO
408	END IF
409	END DO
410
411	ENDIF
412
413	!=============================================================================
414	IF(l3D) THEN !=== 3D FIELDS
415	!=============================================================================
416	IF (grid_type==unstructured) THEN
417	nlat_ou=klon_mpi
418
419	IF (is_mpi_root) THEN
420	ALLOCATE(o3_in3bis(nlon_in,nlat_in,nlev_in,0:13,read_climoz))
421	o3_in3bis(:,:,:,ib:ie,:)=o3_in3(1:nlon_in,:,:,ib:ie,:)
422	ELSE
423	ALLOCATE(o3_in3bis(0,0,0,0,read_climoz))
424	ENDIF
425	ALLOCATE(o3_regr_lonlat(1, nlat_ou, nlev_in, 0:13, read_climoz))
426
427	CALL xios_send_field("tro3_in",o3_in3bis(:,:,:,:,:))
428	CALL xios_recv_field("tro3_out",o3_regr_lonlat(1,:,:,:,:))
429
430	ELSE
431
432	!--- Regrid in longitude
433	ALLOCATE(o3_regr_lon(nlon_ou, nlat_in, nlev_in, ie-ib+1, read_climoz))
434	CALL regr_conserv(1, o3_in3, xs = lon_in_edge, &
435	xt = [boundslon_reg(1,west),boundslon_reg(:,east)], &
436	vt = o3_regr_lon, slope = slopes(1,o3_in3, lon_in_edge))
437	DEALLOCATE(o3_in3)
438
439	!--- Regrid in latitude: averaging with respect to SIN(lat) is
440	! equivalent to weighting by COS(lat)
441	!--- (inverted indices in "o3_regr_lonlat" because "rlatu" is decreasing)
442	ALLOCATE(o3_regr_lonlat(nlon_ou, nlat_ou, nlev_in, 0:13, read_climoz))
443	CALL regr_conserv(2, o3_regr_lon, xs = sinlat_in_edge, &
444	xt = [- 1., SIN(boundslat_reg(nlat_ou-1:1:-1,south)), 1.], &
445	vt = o3_regr_lonlat(:,nlat_ou:1:- 1,:,ib:ie,:), &
446	slope = slopes(2,o3_regr_lon, sinlat_in_edge))
447	DEALLOCATE(o3_regr_lon)
448
449	ENDIF
450
451	!--- Duplicate previous/next record(s) if they are not available
452	IF(.NOT.lprev) o3_regr_lonlat(:,:,:, 0,:) = o3_regr_lonlat(:,:,:,12,:)
453	IF(.NOT.lnext) o3_regr_lonlat(:,:,:,13,:) = o3_regr_lonlat(:,:,:, 1,:)
454
455	!--- Regrid in time by linear interpolation:
456	ALLOCATE(o3_out3(nlon_ou, nlat_ou, nlev_in, ntim_ou, read_climoz))
457	IF( interpt) CALL regr_lint(4,o3_regr_lonlat,tmidmonth,tmidday,o3_out3)
458	IF(.NOT.interpt) o3_out3=o3_regr_lonlat
459	DEALLOCATE(o3_regr_lonlat)
460
461	nlat_ou=nbp_lat
462	IF (grid_type==unstructured) THEN
463	CALL xios_send_field('o3_out',o3_out3)
464	ndims=3
465	ALLOCATE(o3_out3_glo(nlat_ou, nlev_in, ntim_ou, read_climoz))
466	CALL gather_mpi(o3_out3(1,:,:,:,:), o3_out3_glo)
467	ENDIF
468
469	!--- Create the output file and get the variable IDs:
470	CALL prepare_out(fID_in,nlev_in,ntim_ou, fID_ou,levID_ou,timID_ou,vID_ou, &
471	ndims, cal_ou)
472
473	IF (is_mpi_root) THEN
474	!--- Write remaining coordinate variables:
475	CALL NF95_PUT_VAR(fID_ou, levID_ou, lev_in); DEALLOCATE(lev_in)
476	IF( interpt) CALL NF95_PUT_VAR(fID_ou, timID_ou, tmidday)
477	IF(.NOT.interpt) CALL NF95_PUT_VAR(fID_ou, timID_ou, tmidmonth)
478
479	!--- Write to file (the order of "rlatu" is inverted in the output file):
480	IF (grid_type==unstructured) THEN
481
482	ALLOCATE(o3_out(nlat_ou, nlev_in, ntim_ou, read_climoz))
483	DO i=1,klon_glo
484	o3_out(ind_cell_glo_glo(i),:,:,:)=o3_out3_glo(i,:,:,:)
485	ENDDO
486
487	DO m = 1, read_climoz
488	CALL NF95_PUT_VAR(fID_ou, vID_ou(m), o3_out(nlat_ou:1:-1,:,:,m))
489	END DO
490
491	ELSE
492	DO m = 1, read_climoz
493	CALL NF95_PUT_VAR(fID_ou, vID_ou(m), o3_out3(:,nlat_ou:1:-1,:,:,m))
494	END DO
495	ENDIF
496	CALL NF95_CLOSE(fID_ou)
497
498
499	ENDIF
500
501
502	!=============================================================================
503	ELSE !=== ZONAL FIELDS
504	!=============================================================================
505
506	IF (grid_type==unstructured) THEN
507	nlat_ou=klon_mpi
508
509	IF (is_mpi_root) THEN
510	ALLOCATE(o3_in2bis(8,nlat_in,nlev_in,0:13,read_climoz))
511	o3_in2bis(:,:,:,ib:ie,:)=SPREAD(o3_in2,1,8)
512	ELSE
513	ALLOCATE(o3_in2bis(0,0,0,0,read_climoz))
514	ENDIF
515	ALLOCATE(o3_regr_lat(nlat_ou, nlev_in, 0:13, read_climoz))
516	CALL xios_send_field("tro3_in",o3_in2bis(:,:,:,:,:))
517	CALL xios_recv_field("tro3_out",o3_regr_lat(:,:,:,:))
518	IF(.NOT.lprev) o3_regr_lat(:,:, 0, :) = o3_regr_lat(:,:,12,:)
519	IF(.NOT.lnext) o3_regr_lat(:,:,13, :) = o3_regr_lat(:,:, 1,:)
520
521
522	ELSE
523	!--- Regrid in latitude: averaging with respect to SIN(lat) is
524	! equivalent to weighting by COS(lat)
525	!--- (inverted indices in "o3_regr_lat" because "rlatu" is decreasing)
526	ALLOCATE(o3_regr_lat(nlat_ou, nlev_in, 0:13, read_climoz))
527	CALL regr_conserv(1, o3_in2, xs = sinlat_in_edge, &
528	xt = [- 1., SIN(boundslat_reg(nlat_ou-1:1:-1,south)), 1.], &
529	vt = o3_regr_lat(nlat_ou:1:- 1,:,ib:ie,:), &
530	slope = slopes(1,o3_in2, sinlat_in_edge))
531	DEALLOCATE(o3_in2)
532
533	!--- Duplicate previous/next record(s) if they are not available
534	IF(.NOT.lprev) o3_regr_lat(:,:, 0,:) = o3_regr_lat(:,:,12,:)
535	IF(.NOT.lnext) o3_regr_lat(:,:,13,:) = o3_regr_lat(:,:, 1,:)
536
537	ENDIF
538
539	!--- Regrid in time by linear interpolation:
540	ALLOCATE(o3_out2(nlat_ou, nlev_in, ntim_ou, read_climoz))
541	IF( interpt) CALL regr_lint(3,o3_regr_lat, tmidmonth, tmidday, o3_out2)
542	IF(.NOT.interpt) o3_out2=o3_regr_lat
543	DEALLOCATE(o3_regr_lat)
544
545	nlat_ou=nbp_lat
546
547	IF (grid_type==unstructured) THEN
548	ndims=3
549	ALLOCATE(o3_out2_glo(nlat_ou, nlev_in, ntim_ou, read_climoz))
550	CALL gather_mpi(o3_out2, o3_out2_glo)
551	ENDIF
552
553	!--- Create the output file and get the variable IDs:
554	CALL prepare_out(fID_in,nlev_in,ntim_ou, fID_ou,levID_ou,timID_ou,vID_ou, &
555	ndims, cal_ou)
556
557	IF (is_mpi_root) THEN
558
559	!--- Write remaining coordinate variables:
560	CALL NF95_PUT_VAR(fID_ou, levID_ou, lev_in); DEALLOCATE(lev_in)
561	IF( interpt) CALL NF95_PUT_VAR(fID_ou, timID_ou, tmidday)
562	IF(.NOT.interpt) CALL NF95_PUT_VAR(fID_ou, timID_ou, tmidmonth)
563
564	IF (grid_type==unstructured) THEN
565
566	ALLOCATE(o3_out3_glo(nlat_ou, nlev_in, ntim_ou, read_climoz))
567	DO i=1,klon_glo
568	o3_out(ind_cell_glo_glo(i),:,:,:)=o3_out2_glo(i,:,:,:)
569	ENDDO
570
571
572	DO m = 1, read_climoz
573	CALL NF95_PUT_VAR(fID_ou, vID_ou(m), o3_out(nlat_ou:1:-1,:,:,m))
574	END DO
575	ELSE
576	!--- Write to file (the order of "rlatu" is inverted in the output file):
577	DO m = 1, read_climoz
578	CALL NF95_PUT_VAR(fID_ou, vID_ou(m), o3_out2(nlat_ou:1:-1,:,:,m))
579	END DO
580	ENDIF
581
582	CALL NF95_CLOSE(fID_ou)
583
584	ENDIF
585
586	!=============================================================================
587	END IF
588	!=============================================================================
589
590	IF (is_mpi_root) CALL NF95_CLOSE(fID_in)
591
592	ENDIF ! is_omp_master
593
594	first=.FALSE.
595	END SUBROUTINE regr_horiz_time_climoz
596	!
597	!-------------------------------------------------------------------------------
598
599
600	!-------------------------------------------------------------------------------
601	!
602	SUBROUTINE prepare_out(fID_in, nlev_in, ntim_ou, fID_ou, vlevID, vtimID, &
603	vID_ou, ndims, cal_ou)
604	!-------------------------------------------------------------------------------
605	! Purpose: This subroutine creates the NetCDF output file, defines
606	! dimensions and variables, and writes some of the coordinate variables.
607	!-------------------------------------------------------------------------------
608	USE regular_lonlat_mod, ONLY: lon_reg, lat_reg
609	USE regular_lonlat_mod, ONLY: lon_reg, lat_reg
610	USE mod_phys_lmdz_para, ONLY: is_mpi_root
611	USE mod_grid_phy_lmdz, ONLY: klon_glo
612	!
613	!-------------------------------------------------------------------------------
614	! Arguments:
615	INTEGER, INTENT(IN) :: fID_in, nlev_in, ntim_ou
616	INTEGER, INTENT(OUT) :: fID_ou, vlevID, vtimID
617	INTEGER, INTENT(OUT) :: vID_ou(:) ! dim(1/2) 1: O3day&night 2: O3daylight
618	INTEGER, INTENT(IN) :: ndims ! fields rank (3 or 4)
619	CHARACTER(LEN=*), INTENT(IN) :: cal_ou ! calendar
620	!-------------------------------------------------------------------------------
621	! Local variables:
622	INTEGER :: dlonID, dlatID, dlevID, dtimID, dIDs(4)
623	INTEGER :: vlonID, vlatID, ncerr, is
624	REAL,ALLOCATABLE :: latitude_glo_(:)
625	CHARACTER(LEN=80) :: sub
626	INTEGER :: i
627
628
629	!-------------------------------------------------------------------------------
630
631	IF (is_mpi_root) THEN
632	sub="prepare_out"
633	WRITE(lunout,*)"CALL sequence information: "//TRIM(sub)
634	CALL NF95_CREATE("climoz_LMDZ.nc", NF90_clobber, fID_ou)
635
636	!--- Dimensions:
637	IF(ndims==4) &
638	CALL NF95_DEF_DIM(fID_ou, "rlonv", nlon_ou, dlonID)
639	CALL NF95_DEF_DIM(fID_ou, "rlatu", nlat_ou, dlatID)
640	CALL NF95_DEF_DIM(fID_ou, "plev", nlev_in, dlevID)
641	CALL NF95_DEF_DIM(fID_ou, "time", ntim_ou, dtimID)
642
643	!--- Define coordinate variables:
644	IF(ndims==4) &
645	CALL NF95_DEF_VAR(fID_ou, "rlonv", NF90_FLOAT, dlonID, vlonID)
646	CALL NF95_DEF_VAR(fID_ou, "rlatu", NF90_FLOAT, dlatID, vlatID)
647	CALL NF95_DEF_VAR(fID_ou, "plev", NF90_FLOAT, dlevID, vlevID)
648	CALL NF95_DEF_VAR(fID_ou, "time", NF90_FLOAT, dtimID, vtimID)
649	IF(ndims==4) &
650	CALL NF95_PUT_ATT(fID_ou, vlonID, "units", "degrees_east")
651	CALL NF95_PUT_ATT(fID_ou, vlatID, "units", "degrees_north")
652	CALL NF95_PUT_ATT(fID_ou, vlevID, "units", "millibar")
653	CALL NF95_PUT_ATT(fID_ou, vtimID, "units", "days since 2000-1-1")
654	IF(ndims==4) &
655	CALL NF95_PUT_ATT(fID_ou, vlonID, "standard_name", "longitude")
656	CALL NF95_PUT_ATT(fID_ou, vlatID, "standard_name", "latitude")
657	CALL NF95_PUT_ATT(fID_ou, vlevID, "standard_name", "air_pressure")
658	CALL NF95_PUT_ATT(fID_ou, vtimID, "standard_name", "time")
659	CALL NF95_PUT_ATT(fID_ou, vlevID, "long_name", "air pressure")
660	CALL NF95_PUT_ATT(fID_ou, vtimID, "calendar", cal_ou)
661
662	!--- Define the main variables:
663	IF(ndims==3) dIDs(1:3) = [ dlatID, dlevID, dtimID]
664	IF(ndims==4) dIDs=[dlonID, dlatID, dlevID, dtimID]
665	CALL NF95_DEF_VAR(fID_ou, vars_in(1), NF90_FLOAT, dIDs(1:ndims), vID_ou(1))
666	CALL NF95_PUT_ATT(fID_ou, vID_ou(1), "long_name", "ozone mole fraction")
667	CALL NF95_PUT_ATT(fID_ou, vID_ou(1), "standard_name", "mole_fraction_of_ozone&
668	&_in_air")
669	IF(SIZE(vID_ou) == 2) THEN
670	CALL NF95_DEF_VAR(fID_ou, vars_in(2), NF90_FLOAT, dIDs(1:ndims), vID_ou(2))
671	CALL NF95_PUT_ATT(fID_ou, vID_ou(2), "long_name","ozone mole fraction in da&
672	&ylight")
673	END IF
674
675	!--- Global attributes:
676	! The following commands, copying attributes, may fail. That is OK.
677	! It should just mean that the attribute is not defined in the input file.
678	CALL NF95_COPY_ATT(fID_in,NF90_GLOBAL,"Conventions",fID_ou,NF90_GLOBAL, ncerr)
679	CALL handle_err_copy_att("Conventions")
680	CALL NF95_COPY_ATT(fID_in,NF90_GLOBAL,"title", fID_ou,NF90_GLOBAL, ncerr)
681	CALL handle_err_copy_att("title")
682	CALL NF95_COPY_ATT(fID_in,NF90_GLOBAL,"institution",fID_ou,NF90_GLOBAL, ncerr)
683	CALL handle_err_copy_att("institution")
684	CALL NF95_COPY_ATT(fID_in,NF90_GLOBAL,"source", fID_ou,NF90_GLOBAL, ncerr)
685	CALL handle_err_copy_att("source")
686	CALL NF95_PUT_ATT (fID_ou,NF90_GLOBAL,"comment", "Regridded for LMDZ")
687	CALL NF95_ENDDEF(fID_ou)
688
689	IF (grid_type==unstructured) THEN
690	ALLOCATE(latitude_glo_(klon_glo))
691	DO i=1,klon_glo
692	latitude_glo_(ind_cell_glo_glo(i))=latitude_glo(i)
693	ENDDO
694	CALL NF95_PUT_VAR(fID_ou, vlatID, latitude_glo_)
695	ELSE
696	!--- Write one of the coordinate variables:
697	IF(ndims==4) CALL NF95_PUT_VAR(fID_ou, vlonID, lon_reg/deg2rad)
698	CALL NF95_PUT_VAR(fID_ou, vlatID, lat_reg(nlat_ou:1:-1)/deg2rad)
699	! (convert from rad to degrees and sort in ascending order)
700	ENDIF
701	ENDIF
702
703	CONTAINS
704
705	!-------------------------------------------------------------------------------
706	!
707	SUBROUTINE handle_err_copy_att(att_name)
708	!
709	!-------------------------------------------------------------------------------
710	USE netcdf, ONLY: NF90_NOERR, NF90_strerror
711	!-------------------------------------------------------------------------------
712	! Arguments:
713	CHARACTER(LEN=*), INTENT(IN) :: att_name
714	!-------------------------------------------------------------------------------
715	IF(ncerr /= NF90_NOERR) &
716	WRITE(lunout,*)TRIM(sub)//" prepare_out NF95_COPY_ATT "//TRIM(att_name)// &
717	" -- "//TRIM(NF90_strerror(ncerr))
718
719	END SUBROUTINE handle_err_copy_att
720	!
721	!-------------------------------------------------------------------------------
722
723	END SUBROUTINE prepare_out
724	!
725	!-------------------------------------------------------------------------------
726
727	END MODULE regr_horiz_time_climoz_m
728	!
729	!-------------------------------------------------------------------------------

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