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limit_netcdf.F90 @ 6

Last change on this file since 6 was 1, checked in by emillour, 14 years ago
Import initial LMDZ5
File size: 26.0 KB

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1	!
2	! $Id: limit_netcdf.F90 1425 2010-09-02 13:45:23Z lguez $
3	!-------------------------------------------------------------------------------
4	!
5	SUBROUTINE limit_netcdf(interbar, extrap, oldice, masque)
6	!
7	!-------------------------------------------------------------------------------
8	! Author : L. Fairhead, 27/01/94
9	!-------------------------------------------------------------------------------
10	! Purpose: Boundary conditions files building for new model using climatologies.
11	! Both grids have to be regular.
12	!-------------------------------------------------------------------------------
13	! Note: This routine is designed to work for Earth
14	!-------------------------------------------------------------------------------
15	! Modification history:
16	! * 23/03/1994: Z. X. Li
17	! * 09/1999: L. Fairhead (netcdf reading in LMDZ.3.3)
18	! * 07/2001: P. Le Van
19	! * 11/2009: L. Guez (ozone day & night climatos, see etat0_netcdf.F90)
20	! * 12/2009: D. Cugnet (f77->f90, calendars, files from coupled runs)
21	!-------------------------------------------------------------------------------
22	USE control_mod
23	#ifdef CPP_EARTH
24	USE dimphy
25	USE ioipsl, ONLY : ioget_year_len
26	USE phys_state_var_mod, ONLY : pctsrf
27	USE netcdf, ONLY : NF90_OPEN, NF90_CREATE, NF90_CLOSE, &
28	NF90_DEF_DIM, NF90_DEF_VAR, NF90_PUT_VAR, NF90_PUT_ATT, &
29	NF90_NOERR, NF90_NOWRITE, NF90_DOUBLE, NF90_GLOBAL, &
30	NF90_CLOBBER, NF90_ENDDEF, NF90_UNLIMITED, NF90_FLOAT
31	USE inter_barxy_m, only: inter_barxy
32	#endif
33	IMPLICIT NONE
34	!-------------------------------------------------------------------------------
35	! Arguments:
36	#include "dimensions.h"
37	#include "paramet.h"
38	#include "iniprint.h"
39	LOGICAL, INTENT(IN) :: interbar ! barycentric interpolation
40	LOGICAL, INTENT(IN) :: extrap ! SST extrapolation flag
41	LOGICAL, INTENT(IN) :: oldice ! old way ice computation
42	REAL, DIMENSION(iip1,jjp1), INTENT(IN) :: masque ! land mask
43	#ifndef CPP_EARTH
44	WRITE(lunout,*)'limit_netcdf: Earth-specific routine, needs Earth physics'
45	#else
46	!-------------------------------------------------------------------------------
47	! Local variables:
48	#include "logic.h"
49	#include "comvert.h"
50	#include "comgeom2.h"
51	#include "comconst.h"
52	#include "indicesol.h"
53
54	!--- For fractionary sub-cell use (old coding used soil index: 0,1,2,3) --------
55	LOGICAL, PARAMETER :: fracterre=.TRUE.
56
57	!--- INPUT NETCDF FILES NAMES --------------------------------------------------
58	CHARACTER(LEN=25) :: icefile, sstfile, dumstr
59	CHARACTER(LEN=25), PARAMETER :: famipsst='amipbc_sst_1x1.nc ', &
60	famipsic='amipbc_sic_1x1.nc ', &
61	fclimsst='amipbc_sst_1x1_clim.nc ', &
62	fclimsic='amipbc_sic_1x1_clim.nc ', &
63	fcpldsst='cpl_atm_sst.nc ', &
64	fcpldsic='cpl_atm_sic.nc ', &
65	frugo ='Rugos.nc ', &
66	falbe ='Albedo.nc '
67
68	!--- OUTPUT VARIABLES FOR NETCDF FILE ------------------------------------------
69	REAL, DIMENSION(klon) :: fi_ice, verif
70	REAL, DIMENSION(:,:), POINTER :: phy_rug=>NULL(), phy_ice=>NULL()
71	REAL, DIMENSION(:,:), POINTER :: phy_sst=>NULL(), phy_alb=>NULL()
72	REAL, DIMENSION(:,:), ALLOCATABLE :: phy_bil
73	REAL, DIMENSION(:,:,:), ALLOCATABLE :: pctsrf_t
74	INTEGER :: nbad
75
76	!--- VARIABLES FOR OUTPUT FILE WRITING -----------------------------------------
77	INTEGER :: ierr, nid, ndim, ntim, k
78	INTEGER, DIMENSION(2) :: dims
79	INTEGER :: id_tim, id_SST, id_BILS, id_RUG, id_ALB
80	INTEGER :: id_FOCE, id_FSIC, id_FTER, id_FLIC
81	INTEGER :: NF90_FORMAT
82	LOGICAL :: lCPL !--- T: IPCC-IPSL cpl model output files
83	INTEGER :: ndays !--- Depending on the output calendar
84
85	!--- INITIALIZATIONS -----------------------------------------------------------
86	#ifdef NC_DOUBLE
87	NF90_FORMAT=NF90_DOUBLE
88	#else
89	NF90_FORMAT=NF90_FLOAT
90	#endif
91
92	pi = 4.*ATAN(1.)
93	rad = 6371229.
94	daysec= 86400.
95	omeg = 2.*pi/daysec
96	g = 9.8
97	kappa = 0.2857143
98	cpp = 1004.70885
99	dtvr = daysec/FLOAT(day_step)
100	CALL inigeom
101
102	!--- Beware: anneeref (from gcm.def) is used to determine output time sampling
103	ndays=ioget_year_len(anneeref)
104
105	!--- RUGOSITY TREATMENT --------------------------------------------------------
106	WRITE(lunout,*) 'Traitement de la rugosite'
107	CALL get_2Dfield(frugo,'RUG',interbar,ndays,phy_rug,mask=masque(1:iim,:))
108
109	!--- OCEAN TREATMENT -----------------------------------------------------------
110	PRINT*, 'Traitement de la glace oceanique' ; icefile=''; lCPL=.FALSE.
111
112	! Input SIC file selection
113	icefile='fake'
114	IF(NF90_OPEN(famipsic,NF90_NOWRITE,nid)==NF90_NOERR) icefile=TRIM(famipsic)
115	IF(NF90_OPEN(fclimsic,NF90_NOWRITE,nid)==NF90_NOERR) icefile=TRIM(fclimsic)
116	IF(NF90_OPEN(fcpldsic,NF90_NOWRITE,nid)==NF90_NOERR) icefile=TRIM(fcpldsic)
117	SELECT CASE(icefile)
118	CASE(famipsic); dumstr='Amip.'
119	CASE(fclimsic); dumstr='Amip climatologique.'
120	CASE(fcpldsic); dumstr='de sortie du modele couplé IPSL/IPCC.';lCPL=.TRUE.
121	CASE('fake'); CALL abort_gcm('limit_netcdf','Fichier SIC non reconnu.',1)
122	END SELECT
123	ierr=NF90_CLOSE(nid)
124	WRITE(lunout,*)'Pour la glace de mer a ete choisi un fichier '//TRIM(dumstr)
125
126	CALL get_2Dfield(icefile,'SIC',interbar,ndays,phy_ice,flag=oldice,lCPL=lCPL)
127
128	ALLOCATE(pctsrf_t(klon,nbsrf,ndays))
129	DO k=1,ndays
130	fi_ice=phy_ice(:,k)
131	WHERE(fi_ice>=1.0 ) fi_ice=1.0
132	WHERE(fi_ice<EPSFRA) fi_ice=0.0
133	IF(fracterre) THEN
134	pctsrf_t(:,is_ter,k)=pctsrf(:,is_ter) ! land soil
135	pctsrf_t(:,is_lic,k)=pctsrf(:,is_lic) ! land ice
136	IF(lCPL) THEN ! SIC=pICE*(1-LIC-TER)
137	pctsrf_t(:,is_sic,k)=fi_ice*(1-pctsrf(:,is_lic)-pctsrf(:,is_ter))
138	ELSE ! SIC=pICE-LIC
139	pctsrf_t(:,is_sic,k)=fi_ice-pctsrf_t(:,is_lic,k)
140	END IF
141	WHERE(pctsrf_t(:,is_sic,k)<=0) pctsrf_t(:,is_sic,k)=0.
142	WHERE(1.0-zmasq<EPSFRA)
143	pctsrf_t(:,is_sic,k)=0.0
144	pctsrf_t(:,is_oce,k)=0.0
145	ELSEWHERE
146	WHERE(pctsrf_t(:,is_sic,k)>=1.0-zmasq)
147	pctsrf_t(:,is_sic,k)=1.0-zmasq
148	pctsrf_t(:,is_oce,k)=0.0
149	ELSEWHERE
150	pctsrf_t(:,is_oce,k)=1.0-zmasq-pctsrf_t(:,is_sic,k)
151	WHERE(pctsrf_t(:,is_oce,k)<EPSFRA)
152	pctsrf_t(:,is_oce,k)=0.0
153	pctsrf_t(:,is_sic,k)=1.0-zmasq
154	END WHERE
155	END WHERE
156	END WHERE
157	nbad=COUNT(pctsrf_t(:,is_oce,k)<0.0)
158	IF(nbad>0) WRITE(lunout,*) 'pb sous maille pour nb point = ',nbad
159	nbad=COUNT(abs(sum(pctsrf_t(:,:,k),dim=2)-1.0)>EPSFRA)
160	IF(nbad>0) WRITE(lunout,*) 'pb sous surface pour nb points = ',nbad
161	ELSE
162	pctsrf_t(:,is_ter,k)=pctsrf(:,is_ter)
163	WHERE(NINT(pctsrf(:,is_ter))==1)
164	pctsrf_t(:,is_sic,k)=0.
165	pctsrf_t(:,is_oce,k)=0.
166	WHERE(fi_ice>=1.e-5)
167	pctsrf_t(:,is_lic,k)=fi_ice
168	pctsrf_t(:,is_ter,k)=pctsrf_t(:,is_ter,k)-pctsrf_t(:,is_lic,k)
169	ELSEWHERE
170	pctsrf_t(:,is_lic,k)=0.0
171	END WHERE
172	ELSEWHERE
173	pctsrf_t(:,is_lic,k) = 0.0
174	WHERE(fi_ice>=1.e-5)
175	pctsrf_t(:,is_ter,k)=0.0
176	pctsrf_t(:,is_sic,k)=fi_ice
177	pctsrf_t(:,is_oce,k)=1.0-pctsrf_t(:,is_sic,k)
178	ELSEWHERE
179	pctsrf_t(:,is_sic,k)=0.0
180	pctsrf_t(:,is_oce,k)=1.0
181	END WHERE
182	END WHERE
183	verif=sum(pctsrf_t(:,:,k),dim=2)
184	nbad=COUNT(verif<1.0-1.e-5.OR.verif>1.0+1.e-5)
185	IF(nbad>0) WRITE(lunout,*) 'pb sous maille pour nb point = ',nbad
186	END IF
187	END DO
188	DEALLOCATE(phy_ice)
189
190	!--- SST TREATMENT -------------------------------------------------------------
191	WRITE(lunout,*) 'Traitement de la sst' ; sstfile=''; lCPL=.FALSE.
192
193	! Input SST file selection
194	sstfile='fake'
195	IF(NF90_OPEN(famipsst,NF90_NOWRITE,nid)==NF90_NOERR) sstfile=TRIM(famipsst)
196	IF(NF90_OPEN(fclimsst,NF90_NOWRITE,nid)==NF90_NOERR) sstfile=TRIM(fclimsst)
197	IF(NF90_OPEN(fcpldsst,NF90_NOWRITE,nid)==NF90_NOERR) sstfile=TRIM(fcpldsst)
198	SELECT CASE(icefile)
199	CASE(famipsic); dumstr='Amip.'
200	CASE(fclimsic); dumstr='Amip climatologique.'
201	CASE(fcpldsic); dumstr='de sortie du modele couplé IPSL/IPCC.';lCPL=.TRUE.
202	CASE('fake'); CALL abort_gcm('limit_netcdf','Fichier SST non reconnu',1)
203	END SELECT
204	ierr=NF90_CLOSE(nid)
205	WRITE(lunout,*)'Pour la temperature de mer a ete choisi un fichier '//TRIM(dumstr)
206
207	CALL get_2Dfield(trim(sstfile),'SST',interbar,ndays,phy_sst,flag=extrap)
208
209	!--- ALBEDO TREATMENT ----------------------------------------------------------
210	WRITE(lunout,*) 'Traitement de l albedo'
211	CALL get_2Dfield(falbe,'ALB',interbar,ndays,phy_alb)
212
213	!--- REFERENCE GROUND HEAT FLUX TREATMENT --------------------------------------
214	ALLOCATE(phy_bil(klon,ndays)); phy_bil=0.0
215
216	!--- OUTPUT FILE WRITING -------------------------------------------------------
217	WRITE(lunout,*) 'Ecriture du fichier limit'
218
219	!--- File creation
220	ierr=NF90_CREATE("limit.nc",NF90_CLOBBER,nid)
221	ierr=NF90_PUT_ATT(nid,NF90_GLOBAL,"title","Fichier conditions aux limites")
222
223	!--- Dimensions creation
224	ierr=NF90_DEF_DIM(nid,"points_physiques",klon,ndim)
225	ierr=NF90_DEF_DIM(nid,"time",NF90_UNLIMITED,ntim)
226
227	dims=(/ndim,ntim/)
228
229	!--- Variables creation
230	ierr=NF90_DEF_VAR(nid,"TEMPS",NF90_FORMAT,(/ntim/),id_tim)
231	ierr=NF90_DEF_VAR(nid,"FOCE", NF90_FORMAT,dims,id_FOCE)
232	ierr=NF90_DEF_VAR(nid,"FSIC", NF90_FORMAT,dims,id_FSIC)
233	ierr=NF90_DEF_VAR(nid,"FTER", NF90_FORMAT,dims,id_FTER)
234	ierr=NF90_DEF_VAR(nid,"FLIC", NF90_FORMAT,dims,id_FLIC)
235	ierr=NF90_DEF_VAR(nid,"SST", NF90_FORMAT,dims,id_SST)
236	ierr=NF90_DEF_VAR(nid,"BILS", NF90_FORMAT,dims,id_BILS)
237	ierr=NF90_DEF_VAR(nid,"ALB", NF90_FORMAT,dims,id_ALB)
238	ierr=NF90_DEF_VAR(nid,"RUG", NF90_FORMAT,dims,id_RUG)
239
240	!--- Attributes creation
241	ierr=NF90_PUT_ATT(nid,id_tim, "title","Jour dans l annee")
242	ierr=NF90_PUT_ATT(nid,id_FOCE,"title","Fraction ocean")
243	ierr=NF90_PUT_ATT(nid,id_FSIC,"title","Fraction glace de mer")
244	ierr=NF90_PUT_ATT(nid,id_FTER,"title","Fraction terre")
245	ierr=NF90_PUT_ATT(nid,id_FLIC,"title","Fraction land ice")
246	ierr=NF90_PUT_ATT(nid,id_SST ,"title","Temperature superficielle de la mer")
247	ierr=NF90_PUT_ATT(nid,id_BILS,"title","Reference flux de chaleur au sol")
248	ierr=NF90_PUT_ATT(nid,id_ALB, "title","Albedo a la surface")
249	ierr=NF90_PUT_ATT(nid,id_RUG, "title","Rugosite")
250
251	ierr=NF90_ENDDEF(nid)
252
253	!--- Variables saving
254	ierr=NF90_PUT_VAR(nid,id_tim,(/(REAL(k),k=1,ndays)/))
255	ierr=NF90_PUT_VAR(nid,id_FOCE,pctsrf_t(:,is_oce,:),(/1,1/),(/klon,ndays/))
256	ierr=NF90_PUT_VAR(nid,id_FSIC,pctsrf_t(:,is_sic,:),(/1,1/),(/klon,ndays/))
257	ierr=NF90_PUT_VAR(nid,id_FTER,pctsrf_t(:,is_ter,:),(/1,1/),(/klon,ndays/))
258	ierr=NF90_PUT_VAR(nid,id_FLIC,pctsrf_t(:,is_lic,:),(/1,1/),(/klon,ndays/))
259	ierr=NF90_PUT_VAR(nid,id_SST ,phy_sst(:,:),(/1,1/),(/klon,ndays/))
260	ierr=NF90_PUT_VAR(nid,id_BILS,phy_bil(:,:),(/1,1/),(/klon,ndays/))
261	ierr=NF90_PUT_VAR(nid,id_ALB ,phy_alb(:,:),(/1,1/),(/klon,ndays/))
262	ierr=NF90_PUT_VAR(nid,id_RUG ,phy_rug(:,:),(/1,1/),(/klon,ndays/))
263
264	ierr=NF90_CLOSE(nid)
265
266	DEALLOCATE(pctsrf_t,phy_sst,phy_bil,phy_alb,phy_rug)
267	#endif
268	! of #ifdef CPP_EARTH
269
270
271	!===============================================================================
272	!
273	CONTAINS
274	!
275	!===============================================================================
276
277
278	!-------------------------------------------------------------------------------
279	!
280	SUBROUTINE get_2Dfield(fnam, mode, ibar, ndays, champo, flag, mask, lCPL)
281	!
282	!-----------------------------------------------------------------------------
283	! Comments:
284	! There are two assumptions concerning the NetCDF files, that are satisfied
285	! with files that are conforming NC convention:
286	! 1) The last dimension of the variables used is the time record.
287	! 2) Dimensional variables have the same names as corresponding dimensions.
288	!-----------------------------------------------------------------------------
289	USE netcdf, ONLY: NF90_OPEN, NF90_INQ_VARID, NF90_INQUIRE_VARIABLE, &
290	NF90_CLOSE, NF90_INQ_DIMID, NF90_INQUIRE_DIMENSION, NF90_GET_VAR, &
291	NF90_GET_ATT
292	USE dimphy, ONLY : klon
293	USE phys_state_var_mod, ONLY : pctsrf
294	USE control_mod
295	use pchsp_95_m, only: pchsp_95
296	use pchfe_95_m, only: pchfe_95
297	use arth_m, only: arth
298
299	IMPLICIT NONE
300	#include "dimensions.h"
301	#include "paramet.h"
302	#include "comgeom2.h"
303	#include "indicesol.h"
304	#include "iniprint.h"
305	!-----------------------------------------------------------------------------
306	! Arguments:
307	CHARACTER(LEN=*), INTENT(IN) :: fnam ! NetCDF file name
308	CHARACTER(LEN=3), INTENT(IN) :: mode ! RUG, SIC, SST or ALB
309	LOGICAL, INTENT(IN) :: ibar ! interp on pressure levels
310	INTEGER, INTENT(IN) :: ndays ! current year number of days
311	REAL, POINTER, DIMENSION(:, :) :: champo ! output field = f(t)
312	LOGICAL, OPTIONAL, INTENT(IN) :: flag ! extrapol. (SST) old ice (SIC)
313	REAL, OPTIONAL, DIMENSION(iim, jjp1), INTENT(IN) :: mask
314	LOGICAL, OPTIONAL, INTENT(IN) :: lCPL ! Coupled model flag (for ICE)
315	!------------------------------------------------------------------------------
316	! Local variables:
317	!--- NetCDF
318	INTEGER :: ncid, varid ! NetCDF identifiers
319	CHARACTER(LEN=30) :: dnam ! dimension name
320	CHARACTER(LEN=80) :: varname ! NetCDF variable name
321	!--- dimensions
322	INTEGER, DIMENSION(4) :: dids ! NetCDF dimensions identifiers
323	REAL, ALLOCATABLE, DIMENSION(:) :: dlon_ini ! initial longitudes vector
324	REAL, ALLOCATABLE, DIMENSION(:) :: dlat_ini ! initial latitudes vector
325	REAL, POINTER, DIMENSION(:) :: dlon, dlat ! reordered lon/lat vectors
326	!--- fields
327	INTEGER :: imdep, jmdep, lmdep ! dimensions of 'champ'
328	REAL, ALLOCATABLE, DIMENSION(:, :) :: champ ! wanted field on initial grid
329	REAL, ALLOCATABLE, DIMENSION(:) :: yder, timeyear
330	REAL, DIMENSION(iim, jjp1) :: champint ! interpolated field
331	REAL, ALLOCATABLE, DIMENSION(:, :, :) :: champtime
332	REAL, ALLOCATABLE, DIMENSION(:, :, :) :: champan
333	!--- input files
334	CHARACTER(LEN=20) :: cal_in ! calendar
335	INTEGER :: ndays_in ! number of days
336	!--- misc
337	INTEGER :: i, j, k, l ! loop counters
338	REAL, ALLOCATABLE, DIMENSION(:, :) :: work ! used for extrapolation
339	CHARACTER(LEN=25) :: title ! for messages
340	LOGICAL :: extrp ! flag for extrapolation
341	REAL :: chmin, chmax
342	INTEGER ierr
343	integer n_extrap ! number of extrapolated points
344	logical skip
345	!------------------------------------------------------------------------------
346	!---Variables depending on keyword 'mode' -------------------------------------
347	NULLIFY(champo)
348	SELECT CASE(mode)
349	CASE('RUG'); varname='RUGOS'; title='Rugosite'
350	CASE('SIC'); varname='sicbcs'; title='Sea-ice'
351	CASE('SST'); varname='tosbcs'; title='SST'
352	CASE('ALB'); varname='ALBEDO'; title='Albedo'
353	END SELECT
354	extrp=.FALSE.
355	IF ( PRESENT(flag) ) THEN
356	IF ( flag .AND. mode=='SST' ) extrp=.TRUE.
357	END IF
358
359	!--- GETTING SOME DIMENSIONAL VARIABLES FROM FILE -----------------------------
360	ierr=NF90_OPEN(fnam, NF90_NOWRITE, ncid); CALL ncerr(ierr, fnam)
361	ierr=NF90_INQ_VARID(ncid, varname, varid); CALL ncerr(ierr, fnam)
362	ierr=NF90_INQUIRE_VARIABLE(ncid, varid, dimids=dids); CALL ncerr(ierr, fnam)
363
364	!--- Longitude
365	ierr=NF90_INQUIRE_DIMENSION(ncid, dids(1), name=dnam, len=imdep)
366	CALL ncerr(ierr, fnam); ALLOCATE(dlon_ini(imdep), dlon(imdep))
367	ierr=NF90_INQ_VARID(ncid, dnam, varid); CALL ncerr(ierr, fnam)
368	ierr=NF90_GET_VAR(ncid, varid, dlon_ini); CALL ncerr(ierr, fnam)
369	WRITE(lunout, *) 'variable ', dnam, 'dimension ', imdep
370
371	!--- Latitude
372	ierr=NF90_INQUIRE_DIMENSION(ncid, dids(2), name=dnam, len=jmdep)
373	CALL ncerr(ierr, fnam); ALLOCATE(dlat_ini(jmdep), dlat(jmdep))
374	ierr=NF90_INQ_VARID(ncid, dnam, varid); CALL ncerr(ierr, fnam)
375	ierr=NF90_GET_VAR(ncid, varid, dlat_ini); CALL ncerr(ierr, fnam)
376	WRITE(lunout, *) 'variable ', dnam, 'dimension ', jmdep
377
378	!--- Time (variable is not needed - it is rebuilt - but calendar is)
379	ierr=NF90_INQUIRE_DIMENSION(ncid, dids(3), name=dnam, len=lmdep)
380	CALL ncerr(ierr, fnam); ALLOCATE(timeyear(lmdep))
381	ierr=NF90_INQ_VARID(ncid, dnam, varid); CALL ncerr(ierr, fnam)
382	cal_in=' '
383	ierr=NF90_GET_ATT(ncid, varid, 'calendar', cal_in)
384	IF(ierr/=NF90_NOERR) THEN
385	SELECT CASE(mode)
386	CASE('RUG', 'ALB'); cal_in='360d'
387	CASE('SIC', 'SST'); cal_in='gregorian'
388	END SELECT
389	WRITE(lunout, *)'ATTENTION: variable "time" sans attribut "calendrier" ' &
390	// 'dans '//TRIM(fnam)//'. On choisit la valeur par defaut.'
391	END IF
392	WRITE(lunout, *) 'variable ', dnam, 'dimension ', lmdep, 'calendrier ', &
393	cal_in
394
395	!--- CONSTRUCTING THE INPUT TIME VECTOR FOR INTERPOLATION --------------------
396	!--- Determining input file number of days, depending on calendar
397	ndays_in=year_len(anneeref, cal_in)
398
399	!--- Time vector reconstruction (time vector from file is not trusted)
400	!--- If input records are not monthly, time sampling has to be constant !
401	timeyear=mid_months(anneeref, cal_in, lmdep)
402	IF (lmdep /= 12) WRITE(lunout, '(a, i3, a)') 'Note : les fichiers de ' &
403	// TRIM(mode) // ' ne comportent pas 12, mais ', lmdep, &
404	' enregistrements.'
405
406	!--- GETTING THE FIELD AND INTERPOLATING IT ----------------------------------
407	ALLOCATE(champ(imdep, jmdep), champtime(iim, jjp1, lmdep))
408	IF(extrp) ALLOCATE(work(imdep, jmdep))
409
410	WRITE(lunout, *)
411	WRITE(lunout, '(a, i3, a)')'LECTURE ET INTERPOLATION HORIZ. DE ', lmdep, &
412	' CHAMPS.'
413	ierr=NF90_INQ_VARID(ncid, varname, varid); CALL ncerr(ierr, fnam)
414	DO l=1, lmdep
415	ierr=NF90_GET_VAR(ncid, varid, champ, (/1, 1, l/), (/imdep, jmdep, 1/))
416	CALL ncerr(ierr, fnam)
417	CALL conf_dat2d(title, imdep, jmdep, dlon_ini, dlat_ini, dlon, dlat, &
418	champ, ibar)
419
420	IF (extrp) CALL extrapol(champ, imdep, jmdep, 999999., .TRUE., .TRUE., 2, &
421	work)
422
423	IF(ibar.AND..NOT.(mode=='SIC'.AND.flag)) THEN
424	IF(l==1) THEN
425	WRITE(lunout, *) &
426	'-------------------------------------------------------------------------'
427	WRITE(lunout, *) &
428	'Utilisation de l''interpolation barycentrique pour '//TRIM(title)//' $$$'
429	WRITE(lunout, *) &
430	'-------------------------------------------------------------------------'
431	END IF
432	IF(mode=='RUG') champ=LOG(champ)
433	CALL inter_barxy(dlon, dlat(:jmdep-1), champ, rlonu(:iim), &
434	rlatv, champint)
435	IF(mode=='RUG') THEN
436	champint=EXP(champint)
437	WHERE(NINT(mask)/=1) champint=0.001
438	END IF
439	ELSE
440	SELECT CASE(mode)
441	CASE('RUG'); CALL rugosite(imdep, jmdep, dlon, dlat, champ, &
442	iim, jjp1, rlonv, rlatu, champint, mask)
443	CASE('SIC'); CALL sea_ice (imdep, jmdep, dlon, dlat, champ, &
444	iim, jjp1, rlonv, rlatu, champint)
445	CASE('SST', 'ALB'); CALL grille_m(imdep, jmdep, dlon, dlat, champ, &
446	iim, jjp1, rlonv, rlatu, champint)
447	END SELECT
448	END IF
449	champtime(:, :, l)=champint
450	END DO
451	ierr=NF90_CLOSE(ncid); CALL ncerr(ierr, fnam)
452
453	DEALLOCATE(dlon_ini, dlat_ini, dlon, dlat, champ)
454	IF(extrp) DEALLOCATE(work)
455
456	!--- TIME INTERPOLATION ------------------------------------------------------
457	WRITE(lunout, *)
458	WRITE(lunout, *)'INTERPOLATION TEMPORELLE.'
459	WRITE(lunout, "(2x, ' Vecteur temps en entree: ', 10f6.1)") timeyear
460	WRITE(lunout, "(2x, ' Vecteur temps en sortie de 0 a ', i3)") ndays
461	ALLOCATE(yder(lmdep), champan(iip1, jjp1, ndays))
462	skip = .false.
463	n_extrap = 0
464	DO j=1, jjp1
465	DO i=1, iim
466	yder = pchsp_95(timeyear, champtime(i, j, :), ibeg=2, iend=2, &
467	vc_beg=0., vc_end=0.)
468	CALL pchfe_95(timeyear, champtime(i, j, :), yder, skip, &
469	arth(0., real(ndays_in) / ndays, ndays), champan(i, j, :), ierr)
470	if (ierr < 0) stop 1
471	n_extrap = n_extrap + ierr
472	END DO
473	END DO
474	if (n_extrap /= 0) then
475	print *, "get_2Dfield pchfe_95: n_extrap = ", n_extrap
476	end if
477	champan(iip1, :, :)=champan(1, :, :)
478	DEALLOCATE(yder, champtime, timeyear)
479
480	!--- Checking the result
481	DO j=1, jjp1
482	CALL minmax(iip1, champan(1, j, 10), chmin, chmax)
483	WRITE(lunout, *)' '//TRIM(title)//' au temps 10 ', chmin, chmax, j
484	END DO
485
486	!--- SPECIAL FILTER FOR SST: SST>271.38 --------------------------------------
487	IF(mode=='SST') THEN
488	WRITE(lunout, *) 'Filtrage de la SST: SST >= 271.38'
489	WHERE(champan<271.38) champan=271.38
490	END IF
491
492	!--- SPECIAL FILTER FOR SIC: 0.0<SIC<1.0 -------------------------------------
493	IF(mode=='SIC') THEN
494	WRITE(lunout, *) 'Filtrage de la SIC: 0.0 < Sea-ice < 1.0'
495	IF(.NOT.lCPL) champan(:, :, :)=champan(:, :, :)/100.
496	champan(iip1, :, :)=champan(1, :, :)
497	WHERE(champan>1.0) champan=1.0
498	WHERE(champan<0.0) champan=0.0
499	END IF
500
501	!--- DYNAMICAL TO PHYSICAL GRID ----------------------------------------------
502	ALLOCATE(champo(klon, ndays))
503	DO k=1, ndays
504	CALL gr_dyn_fi(1, iip1, jjp1, klon, champan(1, 1, k), champo(1, k))
505	END DO
506	DEALLOCATE(champan)
507
508	END SUBROUTINE get_2Dfield
509	!
510	!-------------------------------------------------------------------------------
511
512
513
514	!-------------------------------------------------------------------------------
515	!
516	FUNCTION year_len(y,cal_in)
517	!
518	!-------------------------------------------------------------------------------
519	USE ioipsl, ONLY : ioget_calendar,ioconf_calendar,lock_calendar,ioget_year_len
520	IMPLICIT NONE
521	!-------------------------------------------------------------------------------
522	! Arguments:
523	INTEGER :: year_len
524	INTEGER, INTENT(IN) :: y
525	CHARACTER(LEN=*), INTENT(IN) :: cal_in
526	!-------------------------------------------------------------------------------
527	! Local variables:
528	CHARACTER(LEN=20) :: cal_out ! calendar (for outputs)
529	!-------------------------------------------------------------------------------
530	!--- Getting the input calendar to reset at the end of the function
531	CALL ioget_calendar(cal_out)
532
533	!--- Unlocking calendar and setting it to wanted one
534	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_in))
535
536	!--- Getting the number of days in this year
537	year_len=ioget_year_len(y)
538
539	!--- Back to original calendar
540	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_out))
541
542	END FUNCTION year_len
543	!
544	!-------------------------------------------------------------------------------
545
546
547	!-------------------------------------------------------------------------------
548	!
549	FUNCTION mid_months(y,cal_in,nm)
550	!
551	!-------------------------------------------------------------------------------
552	USE ioipsl, ONLY : ioget_calendar,ioconf_calendar,lock_calendar,ioget_mon_len
553	IMPLICIT NONE
554	!-------------------------------------------------------------------------------
555	! Arguments:
556	INTEGER, INTENT(IN) :: y ! year
557	CHARACTER(LEN=*), INTENT(IN) :: cal_in ! calendar
558	INTEGER, INTENT(IN) :: nm ! months/year number
559	REAL, DIMENSION(nm) :: mid_months ! mid-month times
560	!-------------------------------------------------------------------------------
561	! Local variables:
562	CHARACTER(LEN=99) :: mess ! error message
563	CHARACTER(LEN=20) :: cal_out ! calendar (for outputs)
564	INTEGER, DIMENSION(nm) :: mnth ! months lengths (days)
565	INTEGER :: m ! months counter
566	INTEGER :: nd ! number of days
567	!-------------------------------------------------------------------------------
568	nd=year_len(y,cal_in)
569
570	IF(nm==12) THEN
571
572	!--- Getting the input calendar to reset at the end of the function
573	CALL ioget_calendar(cal_out)
574
575	!--- Unlocking calendar and setting it to wanted one
576	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_in))
577
578	!--- Getting the length of each month
579	DO m=1,nm; mnth(m)=ioget_mon_len(y,m); END DO
580
581	!--- Back to original calendar
582	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_out))
583
584	ELSE IF(MODULO(nd,nm)/=0) THEN
585	WRITE(mess,'(a,i3,a,i3,a)')'Unconsistent calendar: ',nd,' days/year, but ',&
586	nm,' months/year. Months number should divide days number.'
587	CALL abort_gcm('mid_months',TRIM(mess),1)
588
589	ELSE
590	mnth=(/(m,m=1,nm,nd/nm)/)
591	END IF
592
593	!--- Mid-months times
594	mid_months(1)=0.5*FLOAT(mnth(1))
595	DO k=2,nm
596	mid_months(k)=mid_months(k-1)+0.5*FLOAT(mnth(k-1)+mnth(k))
597	END DO
598
599	END FUNCTION mid_months
600	!
601	!-------------------------------------------------------------------------------
602
603
604	!-------------------------------------------------------------------------------
605	!
606	SUBROUTINE ncerr(ncres,fnam)
607	!
608	!-------------------------------------------------------------------------------
609	! Purpose: NetCDF errors handling.
610	!-------------------------------------------------------------------------------
611	USE netcdf, ONLY : NF90_NOERR, NF90_STRERROR
612	IMPLICIT NONE
613	!-------------------------------------------------------------------------------
614	! Arguments:
615	INTEGER, INTENT(IN) :: ncres
616	CHARACTER(LEN=*), INTENT(IN) :: fnam
617	!-------------------------------------------------------------------------------
618	#include "iniprint.h"
619	IF(ncres/=NF90_NOERR) THEN
620	WRITE(lunout,*)'Problem with file '//TRIM(fnam)//' in routine limit_netcdf.'
621	CALL abort_gcm('limit_netcdf',NF90_STRERROR(ncres),1)
622	END IF
623
624	END SUBROUTINE ncerr
625	!
626	!-------------------------------------------------------------------------------
627
628
629	END SUBROUTINE limit_netcdf

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