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limit_netcdf.F90 @ 5416

Last change on this file since 5416 was 2893, checked in by dcugnet, 8 years ago
Change for limit files (ce0l:limit_netcdf.F90): daily records are interpolated at 12h (no longer 0h), so that the 0h-24h mean value is used the whole day.
Property copyright set to Name of program: LMDZ Creation date: 1984 Version: LMDZ5 License: CeCILL version 2 Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539 See the license file in the root directory
File size: 33.1 KB

Line
1	MODULE limit
2	!
3	!*******************************************************************************
4	! Author : L. Fairhead, 27/01/94
5	!-------------------------------------------------------------------------------
6	! Purpose: Boundary conditions files building for new model using climatologies.
7	! Both grids have to be regular.
8	!-------------------------------------------------------------------------------
9	! Note: This routine is designed to work for Earth
10	!-------------------------------------------------------------------------------
11	! Modification history:
12	! * 23/03/1994: Z. X. Li
13	! * 09/1999: L. Fairhead (netcdf reading in LMDZ.3.3)
14	! * 07/2001: P. Le Van
15	! * 11/2009: L. Guez (ozone day & night climatos, see etat0_netcdf.F90)
16	! * 12/2009: D. Cugnet (f77->f90, calendars, files from coupled runs)
17	!-------------------------------------------------------------------------------
18
19	USE ioipsl, ONLY: flininfo, flinopen, flinget, flinclo
20	USE assert_eq_m, ONLY: assert_eq
21	USE cal_tools_m, ONLY: year_len, mid_month
22	USE conf_dat_m, ONLY: conf_dat2d, conf_dat3d
23	USE dimphy, ONLY: klon, zmasq
24	USE geometry_mod, ONLY: longitude_deg, latitude_deg
25	USE phys_state_var_mod, ONLY: pctsrf
26	USE control_mod, ONLY: anneeref
27	USE init_ssrf_m, ONLY: start_init_subsurf
28
29	CHARACTER(LEN=20), PARAMETER :: &
30	fsst(5)=['amipbc_sst_1x1.nc ','amip_sst_1x1.nc ','cpl_atm_sst.nc '&
31	,'histmth_sst.nc ','sstk.nc ']
32	CHARACTER(LEN=20), PARAMETER :: &
33	fsic(5)=['amipbc_sic_1x1.nc ','amip_sic_1x1.nc ','cpl_atm_sic.nc '&
34	,'histmth_sic.nc ','ci.nc ']
35	CHARACTER(LEN=10), PARAMETER :: &
36	vsst(5)=['tosbcs ','tos ','SISUTESW ','tsol_oce ','sstk '], &
37	vsic(5)=['sicbcs ','sic ','SIICECOV ','pourc_sic ','ci ']
38	CHARACTER(LEN=10), PARAMETER :: &
39	frugo='Rugos.nc ', falbe='Albedo.nc ', frelf='Relief.nc ', &
40	vrug='RUGOS ', valb='ALBEDO ', vrel='RELIEF '
41
42	CONTAINS
43
44	!-------------------------------------------------------------------------------
45	!
46	SUBROUTINE limit_netcdf(masque, phis, extrap)
47	!
48	!-------------------------------------------------------------------------------
49	! Author : L. Fairhead, 27/01/94
50	!-------------------------------------------------------------------------------
51	! Purpose: Boundary conditions files building for new model using climatologies.
52	! Both grids have to be regular.
53	!-------------------------------------------------------------------------------
54	! Note: This routine is designed to work for Earth
55	!-------------------------------------------------------------------------------
56	! Modification history:
57	! * 23/03/1994: Z. X. Li
58	! * 09/1999: L. Fairhead (netcdf reading in LMDZ.3.3)
59	! * 07/2001: P. Le Van
60	! * 11/2009: L. Guez (ozone day & night climatos, see etat0_netcdf.F90)
61	! * 12/2009: D. Cugnet (f77->f90, calendars, files from coupled runs)
62	! * 04/2016: D. Cugnet (12/14 recs SST/SIC files: cyclic/interannual runs)
63	! * 05/2017: D. Cugnet (linear time interpolation for BCS files)
64	!-------------------------------------------------------------------------------
65	#ifndef CPP_1D
66	USE indice_sol_mod
67	USE netcdf, ONLY: NF90_OPEN, NF90_CREATE, NF90_CLOSE, &
68	NF90_DEF_DIM, NF90_DEF_VAR, NF90_PUT_VAR, NF90_PUT_ATT, &
69	NF90_NOERR, NF90_NOWRITE, NF90_DOUBLE, NF90_GLOBAL, &
70	NF90_CLOBBER, NF90_ENDDEF, NF90_UNLIMITED, NF90_FLOAT
71	USE inter_barxy_m, ONLY: inter_barxy
72	USE netcdf95, ONLY: nf95_def_var, nf95_put_att, nf95_put_var
73	USE comconst_mod, ONLY: pi
74	USE phys_cal_mod, ONLY: calend
75	IMPLICIT NONE
76	!-------------------------------------------------------------------------------
77	! Arguments:
78	include "iniprint.h"
79	include "dimensions.h"
80	include "paramet.h"
81	REAL, DIMENSION(iip1,jjp1), INTENT(INOUT) :: masque ! land mask
82	REAL, DIMENSION(iip1,jjp1), INTENT(INOUT) :: phis ! ground geopotential
83	LOGICAL, INTENT(IN) :: extrap ! SST extrapolation flag
84	!-------------------------------------------------------------------------------
85	! Local variables:
86	include "comgeom2.h"
87
88	!--- INPUT NETCDF FILES NAMES --------------------------------------------------
89	CHARACTER(LEN=20) :: icefile, sstfile, dumstr, fnam
90	CHARACTER(LEN=10) :: varname
91
92	!--- OUTPUT VARIABLES FOR NETCDF FILE ------------------------------------------
93	REAL :: fi_ice(klon), verif(klon)
94	REAL, POINTER :: phy_rug(:,:)=>NULL(), phy_ice(:,:)=>NULL()
95	REAL, POINTER :: phy_sst(:,:)=>NULL(), phy_alb(:,:)=>NULL()
96	REAL, ALLOCATABLE :: phy_bil(:,:), pctsrf_t(:,:,:)
97	INTEGER :: nbad
98
99	!--- VARIABLES FOR OUTPUT FILE WRITING -----------------------------------------
100	INTEGER :: ierr, nid, ndim, ntim, k, dims(2), ix_sic, ix_sst
101	INTEGER :: id_tim, id_SST, id_BILS, id_RUG, id_ALB
102	INTEGER :: id_FOCE, id_FSIC, id_FTER, id_FLIC, varid_longitude, varid_latitude
103	INTEGER :: NF90_FORMAT
104	INTEGER :: ndays !--- Depending on the output calendar
105	CHARACTER(LEN=256) :: str
106
107	!--- INITIALIZATIONS -----------------------------------------------------------
108	#ifdef NC_DOUBLE
109	NF90_FORMAT=NF90_DOUBLE
110	#else
111	NF90_FORMAT=NF90_FLOAT
112	#endif
113	CALL inigeom
114
115	!--- MASK, GROUND GEOPOT. & SUBSURFACES COMPUTATION (IN CASE ok_etat0==.FALSE.)
116	IF(ALL(masque==-99999.)) THEN
117	CALL start_init_orog0(rlonv,rlatu,phis,masque)
118	CALL gr_dyn_fi(1,iip1,jjp1,klon,masque,zmasq) !--- To physical grid
119	ALLOCATE(pctsrf(klon,nbsrf))
120	CALL start_init_subsurf(.FALSE.)
121	!--- TO MATCH EXACTLY WHAT WOULD BE DONE IN etat0phys_netcdf
122	WHERE( masque(:,:)<EPSFRA) masque(:,:)=0.
123	WHERE(1.-masque(:,:)<EPSFRA) masque(:,:)=1.
124	END IF
125
126	!--- Beware: anneeref (from gcm.def) is used to determine output time sampling
127	ndays=year_len(anneeref)
128
129	!--- RUGOSITY TREATMENT --------------------------------------------------------
130	CALL msg(1,'Traitement de la rugosite')
131	CALL get_2Dfield(frugo,vrug,'RUG',ndays,phy_rug,mask=masque(1:iim,:))
132
133	!--- OCEAN TREATMENT -----------------------------------------------------------
134	CALL msg(1,'Traitement de la glace oceanique')
135
136	! Input SIC file selection
137	! Open file only to test if available
138	DO ix_sic=1,SIZE(fsic)
139	IF ( NF90_OPEN(TRIM(fsic(ix_sic)),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
140	icefile=fsic(ix_sic); varname=vsic(ix_sic); EXIT
141	END IF
142	END DO
143	IF(ix_sic==SIZE(fsic)+1) THEN
144	WRITE(lunout,*) 'ERROR! No sea-ice input file was found.'
145	WRITE(lunout,*) 'One of following files must be available : '
146	DO k=1,SIZE(fsic); WRITE(lunout,*) TRIM(fsic(k)); END DO
147	CALL abort_physic('limit_netcdf','No sea-ice file was found',1)
148	END IF
149	CALL ncerr(NF90_CLOSE(nid),icefile)
150	CALL msg(-1,'Fichier choisi pour la glace de mer:'//TRIM(icefile))
151
152	CALL get_2Dfield(icefile,varname, 'SIC',ndays,phy_ice)
153
154	ALLOCATE(pctsrf_t(klon,nbsrf,ndays))
155	DO k=1,ndays
156	fi_ice=phy_ice(:,k)
157	WHERE(fi_ice>=1.0 ) fi_ice=1.0
158	WHERE(fi_ice<EPSFRA) fi_ice=0.0
159	pctsrf_t(:,is_ter,k)=pctsrf(:,is_ter) ! land soil
160	pctsrf_t(:,is_lic,k)=pctsrf(:,is_lic) ! land ice
161	SELECT CASE(ix_sic)
162	CASE(3) ! SIC=pICE*(1-LIC-TER) (CPL)
163	pctsrf_t(:,is_sic,k)=fi_ice(:)*(1.-pctsrf(:,is_lic)-pctsrf(:,is_ter))
164	CASE(4) ! SIC=pICE (HIST)
165	pctsrf_t(:,is_sic,k)=fi_ice(:)
166	CASE DEFAULT ! SIC=pICE-LIC (AMIP,ERAI)
167	pctsrf_t(:,is_sic,k)=fi_ice-pctsrf_t(:,is_lic,k)
168	END SELECT
169	WHERE(pctsrf_t(:,is_sic,k)<=0) pctsrf_t(:,is_sic,k)=0.
170	WHERE(1.0-zmasq<EPSFRA)
171	pctsrf_t(:,is_sic,k)=0.0
172	pctsrf_t(:,is_oce,k)=0.0
173	ELSEWHERE
174	WHERE(pctsrf_t(:,is_sic,k)>=1.0-zmasq)
175	pctsrf_t(:,is_sic,k)=1.0-zmasq
176	pctsrf_t(:,is_oce,k)=0.0
177	ELSEWHERE
178	pctsrf_t(:,is_oce,k)=1.0-zmasq-pctsrf_t(:,is_sic,k)
179	WHERE(pctsrf_t(:,is_oce,k)<EPSFRA)
180	pctsrf_t(:,is_oce,k)=0.0
181	pctsrf_t(:,is_sic,k)=1.0-zmasq
182	END WHERE
183	END WHERE
184	END WHERE
185	nbad=COUNT(pctsrf_t(:,is_oce,k)<0.0)
186	IF(nbad>0) WRITE(lunout,*) 'pb sous maille pour nb points = ',nbad
187	nbad=COUNT(ABS(SUM(pctsrf_t(:,:,k),DIM=2)-1.0)>EPSFRA)
188	IF(nbad>0) WRITE(lunout,*) 'pb sous surface pour nb points = ',nbad
189	END DO
190	DEALLOCATE(phy_ice)
191
192	!--- SST TREATMENT -------------------------------------------------------------
193	CALL msg(1,'Traitement de la sst')
194
195	! Input SST file selection
196	! Open file only to test if available
197	DO ix_sst=1,SIZE(fsst)
198	IF ( NF90_OPEN(TRIM(fsst(ix_sst)),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
199	sstfile=fsst(ix_sst); varname=vsst(ix_sst); EXIT
200	END IF
201	END DO
202	IF(ix_sst==SIZE(fsst)+1) THEN
203	WRITE(lunout,*) 'ERROR! No sst input file was found.'
204	WRITE(lunout,*) 'One of following files must be available : '
205	DO k=1,SIZE(fsst); WRITE(lunout,*) TRIM(fsst(k)); END DO
206	CALL abort_physic('limit_netcdf','No sst file was found',1)
207	END IF
208	CALL ncerr(NF90_CLOSE(nid),sstfile)
209	CALL msg(-1,'Fichier choisi pour la temperature de mer: '//TRIM(sstfile))
210
211	CALL get_2Dfield(sstfile,varname,'SST',ndays,phy_sst,flag=extrap)
212
213	!--- ALBEDO TREATMENT ----------------------------------------------------------
214	CALL msg(1,'Traitement de l albedo')
215	CALL get_2Dfield(falbe,valb,'ALB',ndays,phy_alb)
216
217	!--- REFERENCE GROUND HEAT FLUX TREATMENT --------------------------------------
218	ALLOCATE(phy_bil(klon,ndays)); phy_bil=0.0
219
220	!--- OUTPUT FILE WRITING -------------------------------------------------------
221	CALL msg(5,'Ecriture du fichier limit : debut')
222	fnam="limit.nc"
223
224	!--- File creation
225	CALL ncerr(NF90_CREATE(fnam,NF90_CLOBBER,nid),fnam)
226	CALL ncerr(NF90_PUT_ATT(nid,NF90_GLOBAL,"title","Fichier conditions aux limites"),fnam)
227	str='File produced using ce0l executable.'
228	str=TRIM(str)//NEW_LINE(' ')//'Sea Ice Concentration built from'
229	SELECT CASE(ix_sic)
230	CASE(1); str=TRIM(str)//' Amip mid-month boundary condition (BCS).'
231	CASE(2); str=TRIM(str)//' Amip monthly mean observations.'
232	CASE(3); str=TRIM(str)//' IPSL coupled model outputs.'
233	CASE(4); str=TRIM(str)//' LMDZ model outputs.'
234	CASE(5); str=TRIM(str)//' ci.nc file.'
235	END SELECT
236	str=TRIM(str)//NEW_LINE(' ')//'Sea Surface Temperature built from'
237	SELECT CASE(ix_sst)
238	CASE(1); str=TRIM(str)//' Amip mid-month boundary condition (BCS).'
239	CASE(2); str=TRIM(str)//' Amip monthly mean observations.'
240	CASE(3); str=TRIM(str)//' IPSL coupled model outputs.'
241	CASE(4); str=TRIM(str)//' LMDZ model outputs.'
242	CASE(5); str=TRIM(str)//' sstk.nc file.'
243	END SELECT
244	CALL ncerr(NF90_PUT_ATT(nid,NF90_GLOBAL,"history",TRIM(str)),fnam)
245
246	!--- Dimensions creation
247	CALL ncerr(NF90_DEF_DIM(nid,"points_physiques",klon,ndim),fnam)
248	CALL ncerr(NF90_DEF_DIM(nid,"time",NF90_UNLIMITED,ntim),fnam)
249
250	dims=[ndim,ntim]
251
252	!--- Variables creation
253	CALL ncerr(NF90_DEF_VAR(nid,"TEMPS",NF90_FORMAT,[ntim],id_tim),fnam)
254	CALL ncerr(NF90_DEF_VAR(nid,"FOCE", NF90_FORMAT,dims,id_FOCE),fnam)
255	CALL ncerr(NF90_DEF_VAR(nid,"FSIC", NF90_FORMAT,dims,id_FSIC),fnam)
256	CALL ncerr(NF90_DEF_VAR(nid,"FTER", NF90_FORMAT,dims,id_FTER),fnam)
257	CALL ncerr(NF90_DEF_VAR(nid,"FLIC", NF90_FORMAT,dims,id_FLIC),fnam)
258	CALL ncerr(NF90_DEF_VAR(nid,"SST", NF90_FORMAT,dims,id_SST),fnam)
259	CALL ncerr(NF90_DEF_VAR(nid,"BILS", NF90_FORMAT,dims,id_BILS),fnam)
260	CALL ncerr(NF90_DEF_VAR(nid,"ALB", NF90_FORMAT,dims,id_ALB),fnam)
261	CALL ncerr(NF90_DEF_VAR(nid,"RUG", NF90_FORMAT,dims,id_RUG),fnam)
262	call nf95_def_var(nid, "longitude", NF90_FLOAT, ndim, varid_longitude)
263	call nf95_def_var(nid, "latitude", NF90_FLOAT, ndim, varid_latitude)
264
265	!--- Attributes creation
266	CALL ncerr(NF90_PUT_ATT(nid,id_tim, "title","Jour dans l annee"),fnam)
267	CALL ncerr(NF90_PUT_ATT(nid,id_tim, "calendar",calend),fnam)
268	CALL ncerr(NF90_PUT_ATT(nid,id_FOCE,"title","Fraction ocean"),fnam)
269	CALL ncerr(NF90_PUT_ATT(nid,id_FSIC,"title","Fraction glace de mer"),fnam)
270	CALL ncerr(NF90_PUT_ATT(nid,id_FTER,"title","Fraction terre"),fnam)
271	CALL ncerr(NF90_PUT_ATT(nid,id_FLIC,"title","Fraction land ice"),fnam)
272	CALL ncerr(NF90_PUT_ATT(nid,id_SST ,"title","Temperature superficielle de la mer"),fnam)
273	CALL ncerr(NF90_PUT_ATT(nid,id_BILS,"title","Reference flux de chaleur au sol"),fnam)
274	CALL ncerr(NF90_PUT_ATT(nid,id_ALB, "title","Albedo a la surface"),fnam)
275	CALL ncerr(NF90_PUT_ATT(nid,id_RUG, "title","Rugosite"),fnam)
276
277	call nf95_put_att(nid, varid_longitude, "standard_name", "longitude")
278	call nf95_put_att(nid, varid_longitude, "units", "degrees_east")
279
280	call nf95_put_att(nid, varid_latitude, "standard_name", "latitude")
281	call nf95_put_att(nid, varid_latitude, "units", "degrees_north")
282
283	CALL ncerr(NF90_ENDDEF(nid),fnam)
284
285	!--- Variables saving
286	CALL ncerr(NF90_PUT_VAR(nid,id_tim,[(REAL(k),k=1,ndays)]),fnam)
287	CALL ncerr(NF90_PUT_VAR(nid,id_FOCE,pctsrf_t(:,is_oce,:),[1,1],[klon,ndays]),fnam)
288	CALL ncerr(NF90_PUT_VAR(nid,id_FSIC,pctsrf_t(:,is_sic,:),[1,1],[klon,ndays]),fnam)
289	CALL ncerr(NF90_PUT_VAR(nid,id_FTER,pctsrf_t(:,is_ter,:),[1,1],[klon,ndays]),fnam)
290	CALL ncerr(NF90_PUT_VAR(nid,id_FLIC,pctsrf_t(:,is_lic,:),[1,1],[klon,ndays]),fnam)
291	CALL ncerr(NF90_PUT_VAR(nid,id_SST ,phy_sst(:,:),[1,1],[klon,ndays]),fnam)
292	CALL ncerr(NF90_PUT_VAR(nid,id_BILS,phy_bil(:,:),[1,1],[klon,ndays]),fnam)
293	CALL ncerr(NF90_PUT_VAR(nid,id_ALB ,phy_alb(:,:),[1,1],[klon,ndays]),fnam)
294	CALL ncerr(NF90_PUT_VAR(nid,id_RUG ,phy_rug(:,:),[1,1],[klon,ndays]),fnam)
295	call nf95_put_var(nid, varid_longitude, longitude_deg)
296	call nf95_put_var(nid, varid_latitude, latitude_deg)
297
298	CALL ncerr(NF90_CLOSE(nid),fnam)
299
300	CALL msg(6,'Ecriture du fichier limit : fin')
301
302	DEALLOCATE(pctsrf_t,phy_sst,phy_bil,phy_alb,phy_rug)
303
304
305	!===============================================================================
306	!
307	CONTAINS
308	!
309	!===============================================================================
310
311
312	!-------------------------------------------------------------------------------
313	!
314	SUBROUTINE get_2Dfield(fnam, varname, mode, ndays, champo, flag, mask)
315	!
316	!-----------------------------------------------------------------------------
317	! Comments:
318	! There are two assumptions concerning the NetCDF files, that are satisfied
319	! with files that are conforming NC convention:
320	! 1) The last dimension of the variables used is the time record.
321	! 2) Dimensional variables have the same names as corresponding dimensions.
322	!-----------------------------------------------------------------------------
323	USE netcdf, ONLY: NF90_OPEN, NF90_INQ_VARID, NF90_INQUIRE_VARIABLE, &
324	NF90_CLOSE, NF90_INQ_DIMID, NF90_INQUIRE_DIMENSION, NF90_GET_VAR, &
325	NF90_GET_ATT
326	USE pchsp_95_m, only: pchsp_95
327	USE pchfe_95_m, only: pchfe_95
328	USE arth_m, only: arth
329	USE indice_sol_mod
330
331	IMPLICIT NONE
332	include "dimensions.h"
333	include "paramet.h"
334	include "comgeom2.h"
335	!-----------------------------------------------------------------------------
336	! Arguments:
337	CHARACTER(LEN=*), INTENT(IN) :: fnam ! NetCDF file name
338	CHARACTER(LEN=10), INTENT(IN) :: varname ! NetCDF variable name
339	CHARACTER(LEN=3), INTENT(IN) :: mode ! RUG, SIC, SST or ALB
340	INTEGER, INTENT(IN) :: ndays ! current year number of days
341	REAL, POINTER, DIMENSION(:, :) :: champo ! output field = f(t)
342	LOGICAL, OPTIONAL, INTENT(IN) :: flag ! extrapol. (SST) old ice (SIC)
343	REAL, OPTIONAL, DIMENSION(iim, jjp1), INTENT(IN) :: mask
344	!------------------------------------------------------------------------------
345	! Local variables:
346	!--- NetCDF
347	INTEGER :: ncid, varid ! NetCDF identifiers
348	CHARACTER(LEN=30) :: dnam ! dimension name
349	!--- dimensions
350	INTEGER :: dids(4) ! NetCDF dimensions identifiers
351	REAL, ALLOCATABLE :: dlon_ini(:) ! initial longitudes vector
352	REAL, ALLOCATABLE :: dlat_ini(:) ! initial latitudes vector
353	REAL, POINTER :: dlon(:), dlat(:) ! reordered lon/lat vectors
354	!--- fields
355	INTEGER :: imdep, jmdep, lmdep ! dimensions of 'champ'
356	REAL, ALLOCATABLE :: champ(:,:) ! wanted field on initial grid
357	REAL, ALLOCATABLE :: yder(:), timeyear(:)
358	REAL :: champint(iim,jjp1) ! interpolated field
359	REAL, ALLOCATABLE :: champtime(:,:,:)
360	REAL, ALLOCATABLE :: champan(:,:,:)
361	!--- input files
362	CHARACTER(LEN=20) :: fnam_m, fnam_p ! previous/next files names
363	CHARACTER(LEN=20) :: cal_in ! calendar
364	CHARACTER(LEN=20) :: unit_sic ! attribute unit in sea-ice file
365	INTEGER :: ndays_in ! number of days
366	!--- misc
367	INTEGER :: i, j, k, l, ll ! loop counters
368	REAL, ALLOCATABLE :: work(:,:) ! used for extrapolation
369	CHARACTER(LEN=128):: title, mess ! for messages
370	LOGICAL :: is_bcs ! flag for BCS data
371	LOGICAL :: extrp ! flag for extrapolation
372	REAL :: chmin, chmax, timeday, al
373	INTEGER ierr, idx
374	integer n_extrap ! number of extrapolated points
375	logical skip
376
377	!------------------------------------------------------------------------------
378	!---Variables depending on keyword 'mode' -------------------------------------
379	NULLIFY(champo)
380
381	SELECT CASE(mode)
382	CASE('RUG'); title='Rugosite'
383	CASE('SIC'); title='Sea-ice'
384	CASE('SST'); title='SST'
385	CASE('ALB'); title='Albedo'
386	END SELECT
387	extrp=.FALSE.; IF(PRESENT(flag).AND.mode=='SST') extrp=flag
388	is_bcs=(mode=='SIC'.AND.ix_sic==1).OR.(mode=='SST'.AND.ix_sst==1)
389	idx=INDEX(fnam,'.nc')-1
390
391	!--- GETTING SOME DIMENSIONAL VARIABLES FROM FILE -----------------------------
392	CALL msg(5,' Now reading file : '//TRIM(fnam))
393	CALL ncerr(NF90_OPEN(fnam, NF90_NOWRITE, ncid),fnam)
394	CALL ncerr(NF90_INQ_VARID(ncid, trim(varname), varid),fnam)
395	CALL ncerr(NF90_INQUIRE_VARIABLE(ncid, varid, dimids=dids),fnam)
396
397	!--- Read unit for sea-ice variable only
398	IF (mode=='SIC') THEN
399	ierr=NF90_GET_ATT(ncid, varid, 'units', unit_sic); CALL strclean(unit_sic)
400	IF(ierr/=NF90_NOERR) THEN
401	CALL msg(5,'No unit in sea-ice file. Take percentage as default value')
402	unit_sic='X'
403	ELSE IF(ANY(["% ","1.0","1 "]==unit_sic)) THEN
404	CALL msg(5,'Sea-ice cover has unit='//TRIM(unit_sic))
405	ELSE
406	CALL abort_physic('SIC','Unrecognized unit for sea-ice file: '&
407	//TRIM(unit_sic),1)
408	END IF
409	END IF
410
411	!--- Longitude
412	CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(1), name=dnam, len=imdep),fnam)
413	ALLOCATE(dlon_ini(imdep), dlon(imdep))
414	CALL ncerr(NF90_INQ_VARID(ncid, dnam, varid), fnam)
415	CALL ncerr(NF90_GET_VAR(ncid, varid, dlon_ini), fnam)
416	CALL msg(5,'variable '//TRIM(dnam)//' dimension ', imdep)
417
418	!--- Latitude
419	CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(2), name=dnam, len=jmdep),fnam)
420	ALLOCATE(dlat_ini(jmdep), dlat(jmdep))
421	CALL ncerr(NF90_INQ_VARID(ncid, dnam, varid), fnam)
422	CALL ncerr(NF90_GET_VAR(ncid, varid, dlat_ini), fnam)
423	CALL msg(5,'variable '//TRIM(dnam)//' dimension ', jmdep)
424
425	!--- Time (variable is not needed - it is rebuilt - but calendar is)
426	CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(3), name=dnam, len=lmdep), fnam)
427	ALLOCATE(timeyear(lmdep+2))
428	CALL ncerr(NF90_INQ_VARID(ncid, dnam, varid), fnam)
429	cal_in=' '
430	IF(NF90_GET_ATT(ncid, varid, 'calendar', cal_in)/=NF90_NOERR) THEN
431	SELECT CASE(mode)
432	CASE('RUG', 'ALB'); cal_in='360d'
433	CASE('SIC', 'SST'); cal_in='gregorian'
434	END SELECT
435	CALL msg(5,'WARNING: missing "calendar" attribute for "time" in '&
436	&//TRIM(fnam)//'. Choosing default value.')
437	END IF
438	CALL strclean(cal_in) !--- REMOVE (WEIRD) NULL CHARACTERS
439	CALL msg(5,'var, calendar, dim: '//TRIM(dnam)//' '//TRIM(cal_in), lmdep)
440
441	!--- Determining input file number of days, depending on calendar
442	ndays_in=year_len(anneeref, cal_in)
443
444	!--- Rebuilding input time vector (field from input file might be unreliable)
445	IF(lmdep==12) THEN
446	timeyear=mid_month(anneeref, cal_in)
447	CALL msg(0,'Monthly input file(s) for '//TRIM(title)//'.')
448	ELSE IF(lmdep==ndays_in) THEN
449	timeyear=[(REAL(k)-0.5,k=0,ndays_in+1)]
450	CALL msg(0,'Daily input file (no time interpolation).')
451	ELSE
452	WRITE(mess,'(a,i3,a,i3,a)')'Mismatching input file: found',lmdep, &
453	' records, 12/',ndays_in,' (monthly/daily needed).'
454	CALL abort_physic('mid_month',TRIM(mess),1)
455	END IF
456
457	!--- GETTING THE FIELD AND INTERPOLATING IT ----------------------------------
458	ALLOCATE(champ(imdep, jmdep), champtime(iim, jjp1, lmdep+2))
459	IF(extrp) ALLOCATE(work(imdep, jmdep))
460	CALL msg(5,'')
461	CALL msg(5,'READ AND INTERPOLATE HORIZONTALLY ', lmdep, ' FIELDS.')
462	CALL ncerr(NF90_INQ_VARID(ncid, varname, varid), fnam)
463	DO l=1, lmdep
464	CALL ncerr(NF90_GET_VAR(ncid,varid,champ,[1,1,l],[imdep,jmdep,1]),fnam)
465	!--- Check whether values are acceptable for SIC, depending on unit.
466	!--- Dropped for mid-month boundary conditions datasets (BCS, ix_sic==1)
467	IF(mode=='SIC'.AND.ix_sic/=1) THEN
468	IF(TRIM(unit_sic)=="1".OR.TRIM(unit_sic)=="1.0") THEN
469	IF(ANY(champ>1.0+EPSFRA)) &
470	CALL abort_physic('SIC','Found sea-ice fractions greater than 1.')
471	ELSE IF(TRIM(unit_sic)=="X".OR.TRIM(unit_sic)=="%") THEN
472	IF(ANY(champ>100.0+EPSFRA)) &
473	CALL abort_physic('SIC','Found sea-ice percentages greater than 100.')
474	IF(MAXVAL(champ)< 1.01) &
475	CALL abort_physic('SIC','All sea-ice percentages lower than 1.')
476	END IF
477	END IF
478	CALL conf_dat2d(title, dlon_ini, dlat_ini, dlon, dlat, champ, .TRUE.)
479	IF(extrp) CALL extrapol(champ,imdep,jmdep,999999.,.TRUE.,.TRUE.,2,work)
480	IF(l==1) THEN
481	CALL msg(5,"----------------------------------------------------------")
482	CALL msg(5,"$$$ Barycentrique interpolation for "//TRIM(title)//" $$$")
483	CALL msg(5,"----------------------------------------------------------")
484	END IF
485	IF(mode=='RUG') champ=LOG(champ)
486	CALL inter_barxy(dlon,dlat(:jmdep-1),champ,rlonu(:iim),rlatv,champint)
487	IF(mode=='RUG') THEN
488	champint=EXP(champint)
489	WHERE(NINT(mask)/=1) champint=0.001
490	END IF
491	champtime(:, :, l+1)=champint
492	END DO
493	CALL ncerr(NF90_CLOSE(ncid), fnam)
494
495	!--- FIRST RECORD: LAST ONE OF PREVIOUS YEAR (CURRENT YEAR IF UNAVAILABLE)
496	fnam_m=fnam(1:idx)//'_m.nc'
497	IF(NF90_OPEN(fnam_m,NF90_NOWRITE,ncid)==NF90_NOERR) THEN
498	CALL msg(0,'Reading previous year file ("'//TRIM(fnam_m)//'") last record for '//TRIM(title))
499	CALL ncerr(NF90_INQ_VARID(ncid, varname, varid),fnam_m)
500	CALL ncerr(NF90_INQUIRE_VARIABLE(ncid, varid, dimids=dids),fnam_m)
501	CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(3), len=l), fnam_m)
502	CALL ncerr(NF90_GET_VAR(ncid,varid,champ,[1,1,l],[imdep,jmdep,1]),fnam_m)
503	CALL ncerr(NF90_CLOSE(ncid), fnam_m)
504	CALL conf_dat2d(title, dlon_ini, dlat_ini, dlon, dlat, champ, .TRUE.)
505	IF(extrp) CALL extrapol(champ,imdep,jmdep,999999.,.TRUE.,.TRUE.,2,work)
506	IF(mode=='RUG') champ=LOG(champ)
507	CALL inter_barxy(dlon,dlat(:jmdep-1),champ,rlonu(:iim),rlatv,champint)
508	IF(mode=='RUG') THEN
509	champint=EXP(champint)
510	WHERE(NINT(mask)/=1) champint=0.001
511	END IF
512	champtime(:, :, 1)=champint
513	ELSE
514	CALL msg(0,'Using current year file ("'//TRIM(fnam)//'") last record for '//TRIM(title))
515	champtime(:, :, 1)=champtime(:, :, lmdep+1)
516	END IF
517
518	!--- LAST RECORD: FIRST ONE OF NEXT YEAR (CURRENT YEAR IF UNAVAILABLE)
519	fnam_p=fnam(1:idx)//'_p.nc'
520	IF(NF90_OPEN(fnam_p,NF90_NOWRITE,ncid)==NF90_NOERR) THEN
521	CALL msg(0,'Reading next year file ("'//TRIM(fnam_p)//'") first record for '//TRIM(title))
522	CALL ncerr(NF90_INQ_VARID(ncid, varname, varid),fnam_p)
523	CALL ncerr(NF90_GET_VAR(ncid,varid,champ,[1,1,1],[imdep,jmdep,1]),fnam_p)
524	CALL ncerr(NF90_CLOSE(ncid), fnam_p)
525	CALL conf_dat2d(title, dlon_ini, dlat_ini, dlon, dlat, champ, .TRUE.)
526	IF(extrp) CALL extrapol(champ,imdep,jmdep,999999.,.TRUE.,.TRUE.,2,work)
527	IF(mode=='RUG') champ=LOG(champ)
528	CALL inter_barxy(dlon,dlat(:jmdep-1),champ,rlonu(:iim),rlatv,champint)
529	IF(mode=='RUG') THEN
530	champint=EXP(champint)
531	WHERE(NINT(mask)/=1) champint=0.001
532	END IF
533	champtime(:, :, lmdep+2)=champint
534	ELSE
535	CALL msg(0,'Using current year file ("'//TRIM(fnam)//'") first record for '//TRIM(title))
536	champtime(:, :, lmdep+2)=champtime(:, :, 2)
537	END IF
538	DEALLOCATE(dlon_ini, dlat_ini, dlon, dlat, champ)
539	IF(extrp) DEALLOCATE(work)
540
541	!--- TIME INTERPOLATION ------------------------------------------------------
542	IF(prt_level>0) THEN
543	IF(ndays/=ndays_in) THEN
544	WRITE(lunout, *)
545	WRITE(lunout,*)'DIFFERENT YEAR LENGTHS:'
546	WRITE(lunout,*)' In the input file: ',ndays_in
547	WRITE(lunout,*)' In the output file: ',ndays
548	END IF
549	IF(lmdep==ndays_in) THEN
550	WRITE(lunout, *)
551	WRITE(lunout, *)'NO TIME INTERPOLATION.'
552	WRITE(lunout, *)' Daily input file.'
553	ELSE
554	IF( is_bcs) WRITE(lunout, *)'LINEAR TIME INTERPOLATION.'
555	IF(.NOT.is_bcs) WRITE(lunout, *)'SPLINES TIME INTERPOLATION.'
556	WRITE(lunout, *)' Input time vector: ', timeyear
557	WRITE(lunout, *)' Output time vector from 0 to ', ndays-1
558	END IF
559	END IF
560	ALLOCATE(champan(iip1, jjp1, ndays))
561
562	IF(lmdep==ndays_in) THEN !--- DAILY DATA: NO TIME INTERPOLATION
563	champan(1:iim,:,:)=champtime
564	ELSE IF(is_bcs) THEN !--- BCS DATA: LINEAR TIME INTERPOLATION
565	l=1
566	DO k=1, ndays
567	timeday = (REAL(k)-0.5)*REAL(ndays_in)/ndays
568	IF(timeyear(l+1)<timeday) l=l+1
569	al=(timeday-timeyear(l))/(timeyear(l+1)-timeyear(l))
570	DO j=1, jjp1
571	DO i=1, iim
572	champan(i,j,k) = champtime(i,j,l)+al*(champtime(i,j,l+1)-champtime(i,j,l))
573	END DO
574	END DO
575	END DO
576	ELSE !--- AVE DATA: SPLINE TIME INTERPOLATION
577	skip = .false.
578	n_extrap = 0
579	ALLOCATE(yder(lmdep+2))
580	DO j=1, jjp1
581	DO i=1, iim
582	yder = pchsp_95(timeyear, champtime(i, j, :), ibeg=2, iend=2, &
583	vc_beg=0., vc_end=0.)
584	CALL pchfe_95(timeyear, champtime(i, j, :), yder, skip, &
585	arth(0.5, real(ndays_in) / ndays, ndays), champan(i, j, :), ierr)
586	if (ierr < 0) stop 1
587	n_extrap = n_extrap + ierr
588	END DO
589	END DO
590	IF(n_extrap /= 0) WRITE(lunout,*) "get_2Dfield pchfe_95: n_extrap = ", n_extrap
591	DEALLOCATE(yder)
592	END IF
593	champan(iip1, :, :)=champan(1, :, :)
594	DEALLOCATE(champtime, timeyear)
595
596	!--- Checking the result
597	DO j=1, jjp1
598	CALL minmax(iip1, champan(1, j, 10), chmin, chmax)
599	IF (prt_level>5) WRITE(lunout, *)' ',TRIM(title),' at time 10 ', chmin, chmax, j
600	END DO
601
602	!--- SPECIAL FILTER FOR SST: SST>271.38 --------------------------------------
603	IF(mode=='SST') THEN
604	CALL msg(0,'Filtering SST: SST >= 271.38')
605	WHERE(champan<271.38) champan=271.38
606	END IF
607
608	!--- SPECIAL FILTER FOR SIC: 0.0<SIC<1.0 -------------------------------------
609	IF(mode=='SIC') THEN
610	CALL msg(0,'Filtering SIC: 0.0 < Sea-ice < 1.0')
611	IF(TRIM(unit_sic)=="1".OR.TRIM(unit_sic)=="1.0") THEN
612	! Nothing to be done for sea-ice field is already in fraction of 1
613	! This is the case for sea-ice in file cpl_atm_sic.nc
614	CALL msg(0,'Sea-ice field already in fraction of 1')
615	ELSE
616	! Convert sea ice from percentage to fraction of 1
617	CALL msg(0,'Sea-ice field converted from percentage to fraction of 1.')
618	champan(:, :, :)=champan(:, :, :)/100.
619	END IF
620	champan(iip1, :, :)=champan(1, :, :)
621	WHERE(champan>1.0) champan=1.0
622	WHERE(champan<0.0) champan=0.0
623	END IF
624
625	!--- DYNAMICAL TO PHYSICAL GRID ----------------------------------------------
626	ALLOCATE(champo(klon, ndays))
627	DO k=1, ndays
628	CALL gr_dyn_fi(1, iip1, jjp1, klon, champan(1, 1, k), champo(1, k))
629	END DO
630	DEALLOCATE(champan)
631
632	END SUBROUTINE get_2Dfield
633	!
634	!-------------------------------------------------------------------------------
635
636
637	!-------------------------------------------------------------------------------
638	!
639	SUBROUTINE start_init_orog0(lon_in,lat_in,phis,masque)
640	!
641	!-------------------------------------------------------------------------------
642	USE grid_noro_m, ONLY: grid_noro0
643	IMPLICIT NONE
644	!===============================================================================
645	! Purpose: Compute "phis" just like it would be in start_init_orog.
646	!===============================================================================
647	! Arguments:
648	REAL, INTENT(IN) :: lon_in(:), lat_in(:) ! dim (iml) (jml)
649	REAL, INTENT(INOUT) :: phis(:,:), masque(:,:) ! dim (iml,jml)
650	!-------------------------------------------------------------------------------
651	! Local variables:
652	CHARACTER(LEN=256) :: modname="start_init_orog0"
653	INTEGER :: fid, llm_tmp,ttm_tmp, iml,jml, iml_rel,jml_rel, itau(1)
654	REAL :: lev(1), date, dt, deg2rad
655	REAL, ALLOCATABLE :: lon_rad(:), lon_ini(:), lon_rel(:,:), relief_hi(:,:)
656	REAL, ALLOCATABLE :: lat_rad(:), lat_ini(:), lat_rel(:,:)
657	!-------------------------------------------------------------------------------
658	iml=assert_eq(SIZE(lon_in),SIZE(phis,1),SIZE(masque,1),TRIM(modname)//" iml")
659	jml=assert_eq(SIZE(lat_in),SIZE(phis,2),SIZE(masque,2),TRIM(modname)//" jml")
660	IF(iml/=iip1) CALL abort_gcm(TRIM(modname),'iml/=iip1',1)
661	IF(jml/=jjp1) CALL abort_gcm(TRIM(modname),'jml/=jjp1',1)
662	pi=2.0*ASIN(1.0); deg2rad=pi/180.0
663	IF(ANY(phis/=-99999.)) RETURN !--- phis ALREADY KNOWN
664
665	!--- HIGH RESOLUTION OROGRAPHY
666	CALL flininfo(frelf, iml_rel, jml_rel, llm_tmp, ttm_tmp, fid)
667
668	ALLOCATE(lat_rel(iml_rel,jml_rel),lon_rel(iml_rel,jml_rel))
669	CALL flinopen(frelf, .FALSE., iml_rel, jml_rel, llm_tmp, lon_rel, lat_rel, &
670	lev, ttm_tmp, itau, date, dt, fid)
671	ALLOCATE(relief_hi(iml_rel,jml_rel))
672	CALL flinget(fid, vrel, iml_rel, jml_rel, llm_tmp, ttm_tmp, 1, 1, relief_hi)
673	CALL flinclo(fid)
674
675	!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
676	ALLOCATE(lon_ini(iml_rel),lat_ini(jml_rel))
677	lon_ini(:)=lon_rel(:,1); IF(MAXVAL(lon_rel)>pi) lon_ini=lon_ini*deg2rad
678	lat_ini(:)=lat_rel(1,:); IF(MAXVAL(lat_rel)>pi) lat_ini=lat_ini*deg2rad
679
680	!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
681	ALLOCATE(lon_rad(iml_rel),lat_rad(jml_rel))
682	CALL conf_dat2d(vrel, lon_ini, lat_ini, lon_rad, lat_rad, relief_hi, .FALSE.)
683	DEALLOCATE(lon_ini,lat_ini)
684
685	!--- COMPUTING SURFACE GEOPOTENTIAL USING ROUTINE grid_noro0
686	WRITE(lunout,*)
687	WRITE(lunout,)' Compute surface geopotential *'
688
689	!--- CALL OROGRAPHY MODULE (REDUCED VERSION) TO COMPUTE FIELDS
690	CALL grid_noro0(lon_rad, lat_rad, relief_hi, lon_in, lat_in, phis, masque)
691	phis = phis * 9.81
692	phis(iml,:) = phis(1,:)
693	DEALLOCATE(relief_hi,lon_rad,lat_rad)
694
695	END SUBROUTINE start_init_orog0
696	!
697	!-------------------------------------------------------------------------------
698
699
700	!-------------------------------------------------------------------------------
701	!
702	SUBROUTINE msg(lev,str1,i,str2)
703	!
704	!-------------------------------------------------------------------------------
705	! Arguments:
706	INTEGER, INTENT(IN) :: lev
707	CHARACTER(LEN=*), INTENT(IN) :: str1
708	INTEGER, OPTIONAL, INTENT(IN) :: i
709	CHARACTER(LEN=*), OPTIONAL, INTENT(IN) :: str2
710	!-------------------------------------------------------------------------------
711	IF(prt_level>lev) THEN
712	IF(PRESENT(str2)) THEN
713	WRITE(lunout,*) TRIM(str1), i, TRIM(str2)
714	ELSE IF(PRESENT(i)) THEN
715	WRITE(lunout,*) TRIM(str1), i
716	ELSE
717	WRITE(lunout,*) TRIM(str1)
718	END IF
719	END IF
720
721	END SUBROUTINE msg
722	!
723	!-------------------------------------------------------------------------------
724
725
726	!-------------------------------------------------------------------------------
727	!
728	SUBROUTINE ncerr(ncres,fnam)
729	!
730	!-------------------------------------------------------------------------------
731	! Purpose: NetCDF errors handling.
732	!-------------------------------------------------------------------------------
733	USE netcdf, ONLY : NF90_NOERR, NF90_STRERROR
734	IMPLICIT NONE
735	!-------------------------------------------------------------------------------
736	! Arguments:
737	INTEGER, INTENT(IN) :: ncres
738	CHARACTER(LEN=*), INTENT(IN) :: fnam
739	!-------------------------------------------------------------------------------
740	IF(ncres/=NF90_NOERR) THEN
741	WRITE(lunout,*)'Problem with file '//TRIM(fnam)//' in routine limit_netcdf.'
742	CALL abort_physic('limit_netcdf',NF90_STRERROR(ncres),1)
743	END IF
744
745	END SUBROUTINE ncerr
746	!
747	!-------------------------------------------------------------------------------
748
749
750	!-------------------------------------------------------------------------------
751	!
752	SUBROUTINE strclean(s)
753	!
754	!-------------------------------------------------------------------------------
755	IMPLICIT NONE
756	!-------------------------------------------------------------------------------
757	! Purpose: Remove tail null characters from the input string.
758	!-------------------------------------------------------------------------------
759	! Parameters:
760	CHARACTER(LEN=*), INTENT(INOUT) :: s
761	!-------------------------------------------------------------------------------
762	! Local variable:
763	INTEGER :: k
764	!-------------------------------------------------------------------------------
765	k=LEN_TRIM(s); DO WHILE(ICHAR(s(k:k))==0); s(k:k)=' '; k=LEN_TRIM(s); END DO
766
767	END SUBROUTINE strclean
768	!
769	!-------------------------------------------------------------------------------
770
771	#endif
772	! of #ifndef CPP_1D
773	END SUBROUTINE limit_netcdf
774
775	END MODULE limit
776	!
777	!*******************************************************************************
778

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