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limit_netcdf.F90 @ 2237

Last change on this file since 2237 was 2159, checked in by jyg, 10 years ago
1/ Splitting of the boundary layer : the climbing down and up of Pbl_surface is split between the off-wake and wake regions ; the thermal scheme is applied only to the off-wake region. 2/ Elimination of wake_scal and calwake_scal.
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: 27.5 KB

Line
1	!
2	! $Id: limit_netcdf.F90 1508 2011-04-15 13:05:34Z jghattas $
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	USE indice_sol_mod
24	#ifdef CPP_EARTH
25	USE dimphy
26	USE ioipsl, ONLY : ioget_year_len
27	USE phys_state_var_mod, ONLY : pctsrf, rlon, rlat
28	USE netcdf, ONLY : NF90_OPEN, NF90_CREATE, NF90_CLOSE, &
29	NF90_DEF_DIM, NF90_DEF_VAR, NF90_PUT_VAR, NF90_PUT_ATT, &
30	NF90_NOERR, NF90_NOWRITE, NF90_DOUBLE, NF90_GLOBAL, &
31	NF90_CLOBBER, NF90_ENDDEF, NF90_UNLIMITED, NF90_FLOAT
32	USE inter_barxy_m, only: inter_barxy
33	use netcdf95, only: nf95_def_var, nf95_put_att, nf95_put_var
34	#endif
35	IMPLICIT NONE
36	!-------------------------------------------------------------------------------
37	! Arguments:
38	#include "dimensions.h"
39	#include "paramet.h"
40	#include "iniprint.h"
41	LOGICAL, INTENT(IN) :: interbar ! barycentric interpolation
42	LOGICAL, INTENT(IN) :: extrap ! SST extrapolation flag
43	LOGICAL, INTENT(IN) :: oldice ! old way ice computation
44	REAL, DIMENSION(iip1,jjp1), INTENT(IN) :: masque ! land mask
45	#ifndef CPP_EARTH
46	CALL abort_gcm('limit_netcdf','Earth-specific routine, needs Earth physics',1)
47	#else
48	!-------------------------------------------------------------------------------
49	! Local variables:
50	#include "logic.h"
51	#include "comvert.h"
52	#include "comgeom2.h"
53	#include "comconst.h"
54
55	!--- INPUT NETCDF FILES NAMES --------------------------------------------------
56	CHARACTER(LEN=25) :: icefile, sstfile, dumstr
57	CHARACTER(LEN=25), PARAMETER :: famipsst ='amipbc_sst_1x1.nc ', &
58	famipsic ='amipbc_sic_1x1.nc ', &
59	fcpldsst ='cpl_atm_sst.nc ', &
60	fcpldsic ='cpl_atm_sic.nc ', &
61	fhistsst ='histmth_sst.nc ', &
62	fhistsic ='histmth_sic.nc ', &
63	frugo ='Rugos.nc ', &
64	falbe ='Albedo.nc ', &
65	feraisstk='sstk.nc ', &
66	feraici ='ci.nc '
67	CHARACTER(LEN=10) :: varname
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, varid_longitude, varid_latitude
81	INTEGER :: NF90_FORMAT
82	INTEGER :: ndays !--- Depending on the output calendar
83
84	!--- INITIALIZATIONS -----------------------------------------------------------
85	#ifdef NC_DOUBLE
86	NF90_FORMAT=NF90_DOUBLE
87	#else
88	NF90_FORMAT=NF90_FLOAT
89	#endif
90
91	pi = 4.*ATAN(1.)
92	rad = 6371229.
93	daysec= 86400.
94	omeg = 2.*pi/daysec
95	g = 9.8
96	kappa = 0.2857143
97	cpp = 1004.70885
98	dtvr = daysec/REAL(day_step)
99	CALL inigeom
100
101	!--- Beware: anneeref (from gcm.def) is used to determine output time sampling
102	ndays=ioget_year_len(anneeref)
103
104	!--- RUGOSITY TREATMENT --------------------------------------------------------
105	IF (prt_level>1) WRITE(lunout,*) 'Traitement de la rugosite'
106	varname='RUGOS'
107	CALL get_2Dfield(frugo,varname,'RUG',interbar,ndays,phy_rug,mask=masque(1:iim,:))
108
109	!--- OCEAN TREATMENT -----------------------------------------------------------
110	IF (prt_level>1) WRITE(lunout,*) 'Traitement de la glace oceanique'
111
112	! Input SIC file selection
113	! Open file only to test if available
114	IF ( NF90_OPEN(TRIM(famipsic),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
115	icefile=TRIM(famipsic)
116	varname='sicbcs'
117	ELSE IF( NF90_OPEN(TRIM(fcpldsic),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
118	icefile=TRIM(fcpldsic)
119	varname='SIICECOV'
120	ELSE IF ( NF90_OPEN(TRIM(fhistsic),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
121	icefile=TRIM(fhistsic)
122	varname='pourc_sic'
123	ELSE IF ( NF90_OPEN(TRIM(feraici),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
124	icefile=TRIM(feraici)
125	varname='ci'
126	ELSE
127	WRITE(lunout,*) 'ERROR! No sea-ice input file was found.'
128	WRITE(lunout,*) 'One of following files must be availible : ',trim(famipsic),', ',trim(fcpldsic),', ', &
129	trim(fhistsic), trim(feraici)
130	CALL abort_gcm('limit_netcdf','No sea-ice file was found',1)
131	END IF
132	ierr=NF90_CLOSE(nid)
133	IF (prt_level>=0) WRITE(lunout,*)'Pour la glace de mer a ete choisi le fichier '//TRIM(icefile)
134
135	CALL get_2Dfield(icefile,varname, 'SIC',interbar,ndays,phy_ice,flag=oldice)
136
137	ALLOCATE(pctsrf_t(klon,nbsrf,ndays))
138	DO k=1,ndays
139	fi_ice=phy_ice(:,k)
140	WHERE(fi_ice>=1.0 ) fi_ice=1.0
141	WHERE(fi_ice<EPSFRA) fi_ice=0.0
142	pctsrf_t(:,is_ter,k)=pctsrf(:,is_ter) ! land soil
143	pctsrf_t(:,is_lic,k)=pctsrf(:,is_lic) ! land ice
144	IF (icefile==trim(fcpldsic)) THEN ! SIC=pICE*(1-LIC-TER)
145	pctsrf_t(:,is_sic,k)=fi_ice(:)*(1.-pctsrf(:,is_lic)-pctsrf(:,is_ter))
146	ELSE IF (icefile==trim(fhistsic)) THEN ! SIC=pICE
147	pctsrf_t(:,is_sic,k)=fi_ice(:)
148	ELSE ! icefile==famipsic ! SIC=pICE-LIC
149	pctsrf_t(:,is_sic,k)=fi_ice-pctsrf_t(:,is_lic,k)
150	END IF
151	WHERE(pctsrf_t(:,is_sic,k)<=0) pctsrf_t(:,is_sic,k)=0.
152	WHERE(1.0-zmasq<EPSFRA)
153	pctsrf_t(:,is_sic,k)=0.0
154	pctsrf_t(:,is_oce,k)=0.0
155	ELSEWHERE
156	WHERE(pctsrf_t(:,is_sic,k)>=1.0-zmasq)
157	pctsrf_t(:,is_sic,k)=1.0-zmasq
158	pctsrf_t(:,is_oce,k)=0.0
159	ELSEWHERE
160	pctsrf_t(:,is_oce,k)=1.0-zmasq-pctsrf_t(:,is_sic,k)
161	WHERE(pctsrf_t(:,is_oce,k)<EPSFRA)
162	pctsrf_t(:,is_oce,k)=0.0
163	pctsrf_t(:,is_sic,k)=1.0-zmasq
164	END WHERE
165	END WHERE
166	END WHERE
167	nbad=COUNT(pctsrf_t(:,is_oce,k)<0.0)
168	IF(nbad>0) WRITE(lunout,*) 'pb sous maille pour nb point = ',nbad
169	nbad=COUNT(abs(sum(pctsrf_t(:,:,k),dim=2)-1.0)>EPSFRA)
170	IF(nbad>0) WRITE(lunout,*) 'pb sous surface pour nb points = ',nbad
171	END DO
172	DEALLOCATE(phy_ice)
173
174	!--- SST TREATMENT -------------------------------------------------------------
175	IF (prt_level>1) WRITE(lunout,*) 'Traitement de la sst'
176
177	! Input SST file selection
178	! Open file only to test if available
179	IF ( NF90_OPEN(TRIM(famipsst),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
180	sstfile=TRIM(famipsst)
181	varname='tosbcs'
182	ELSE IF ( NF90_OPEN(TRIM(fcpldsst),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
183	sstfile=TRIM(fcpldsst)
184	varname='SISUTESW'
185	ELSE IF ( NF90_OPEN(TRIM(fhistsst),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
186	sstfile=TRIM(fhistsst)
187	varname='tsol_oce'
188	ELSE IF ( NF90_OPEN(TRIM(feraisstk),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
189	sstfile=TRIM(feraisstk)
190	varname='sstk'
191	ELSE
192	WRITE(lunout,*) 'ERROR! No sst input file was found.'
193	WRITE(lunout,*) 'One of following files must be availible : ',trim(famipsst),trim(fcpldsst),trim(fhistsst),trim(feraisstk)
194	CALL abort_gcm('limit_netcdf','No sst file was found',1)
195	END IF
196	ierr=NF90_CLOSE(nid)
197	IF (prt_level>=0) WRITE(lunout,*)'Pour la temperature de mer a ete choisi un fichier '//TRIM(sstfile)
198
199	CALL get_2Dfield(sstfile,varname,'SST',interbar,ndays,phy_sst,flag=extrap)
200
201	!--- ALBEDO TREATMENT ----------------------------------------------------------
202	IF (prt_level>1) WRITE(lunout,*) 'Traitement de l albedo'
203	varname='ALBEDO'
204	CALL get_2Dfield(falbe,varname,'ALB',interbar,ndays,phy_alb)
205
206	!--- REFERENCE GROUND HEAT FLUX TREATMENT --------------------------------------
207	ALLOCATE(phy_bil(klon,ndays)); phy_bil=0.0
208
209	!--- OUTPUT FILE WRITING -------------------------------------------------------
210	IF (prt_level>5) WRITE(lunout,*) 'Ecriture du fichier limit : debut'
211
212	!--- File creation
213	ierr=NF90_CREATE("limit.nc",NF90_CLOBBER,nid)
214	ierr=NF90_PUT_ATT(nid,NF90_GLOBAL,"title","Fichier conditions aux limites")
215
216	!--- Dimensions creation
217	ierr=NF90_DEF_DIM(nid,"points_physiques",klon,ndim)
218	ierr=NF90_DEF_DIM(nid,"time",NF90_UNLIMITED,ntim)
219
220	dims=(/ndim,ntim/)
221
222	!--- Variables creation
223	ierr=NF90_DEF_VAR(nid,"TEMPS",NF90_FORMAT,(/ntim/),id_tim)
224	ierr=NF90_DEF_VAR(nid,"FOCE", NF90_FORMAT,dims,id_FOCE)
225	ierr=NF90_DEF_VAR(nid,"FSIC", NF90_FORMAT,dims,id_FSIC)
226	ierr=NF90_DEF_VAR(nid,"FTER", NF90_FORMAT,dims,id_FTER)
227	ierr=NF90_DEF_VAR(nid,"FLIC", NF90_FORMAT,dims,id_FLIC)
228	ierr=NF90_DEF_VAR(nid,"SST", NF90_FORMAT,dims,id_SST)
229	ierr=NF90_DEF_VAR(nid,"BILS", NF90_FORMAT,dims,id_BILS)
230	ierr=NF90_DEF_VAR(nid,"ALB", NF90_FORMAT,dims,id_ALB)
231	ierr=NF90_DEF_VAR(nid,"RUG", NF90_FORMAT,dims,id_RUG)
232	call nf95_def_var(nid, "longitude", NF90_FLOAT, ndim, varid_longitude)
233	call nf95_def_var(nid, "latitude", NF90_FLOAT, ndim, varid_latitude)
234
235	!--- Attributes creation
236	ierr=NF90_PUT_ATT(nid,id_tim, "title","Jour dans l annee")
237	ierr=NF90_PUT_ATT(nid,id_FOCE,"title","Fraction ocean")
238	ierr=NF90_PUT_ATT(nid,id_FSIC,"title","Fraction glace de mer")
239	ierr=NF90_PUT_ATT(nid,id_FTER,"title","Fraction terre")
240	ierr=NF90_PUT_ATT(nid,id_FLIC,"title","Fraction land ice")
241	ierr=NF90_PUT_ATT(nid,id_SST ,"title","Temperature superficielle de la mer")
242	ierr=NF90_PUT_ATT(nid,id_BILS,"title","Reference flux de chaleur au sol")
243	ierr=NF90_PUT_ATT(nid,id_ALB, "title","Albedo a la surface")
244	ierr=NF90_PUT_ATT(nid,id_RUG, "title","Rugosite")
245
246	call nf95_put_att(nid, varid_longitude, "standard_name", "longitude")
247	call nf95_put_att(nid, varid_longitude, "units", "degrees_east")
248
249	call nf95_put_att(nid, varid_latitude, "standard_name", "latitude")
250	call nf95_put_att(nid, varid_latitude, "units", "degrees_north")
251
252	ierr=NF90_ENDDEF(nid)
253
254	!--- Variables saving
255	ierr=NF90_PUT_VAR(nid,id_tim,(/(REAL(k),k=1,ndays)/))
256	ierr=NF90_PUT_VAR(nid,id_FOCE,pctsrf_t(:,is_oce,:),(/1,1/),(/klon,ndays/))
257	ierr=NF90_PUT_VAR(nid,id_FSIC,pctsrf_t(:,is_sic,:),(/1,1/),(/klon,ndays/))
258	ierr=NF90_PUT_VAR(nid,id_FTER,pctsrf_t(:,is_ter,:),(/1,1/),(/klon,ndays/))
259	ierr=NF90_PUT_VAR(nid,id_FLIC,pctsrf_t(:,is_lic,:),(/1,1/),(/klon,ndays/))
260	ierr=NF90_PUT_VAR(nid,id_SST ,phy_sst(:,:),(/1,1/),(/klon,ndays/))
261	ierr=NF90_PUT_VAR(nid,id_BILS,phy_bil(:,:),(/1,1/),(/klon,ndays/))
262	ierr=NF90_PUT_VAR(nid,id_ALB ,phy_alb(:,:),(/1,1/),(/klon,ndays/))
263	ierr=NF90_PUT_VAR(nid,id_RUG ,phy_rug(:,:),(/1,1/),(/klon,ndays/))
264	call nf95_put_var(nid, varid_longitude, rlon)
265	call nf95_put_var(nid, varid_latitude, rlat)
266
267	ierr=NF90_CLOSE(nid)
268
269	IF (prt_level>5) WRITE(lunout,*) 'Ecriture du fichier limit : fin'
270
271	DEALLOCATE(pctsrf_t,phy_sst,phy_bil,phy_alb,phy_rug)
272
273
274	!===============================================================================
275	!
276	CONTAINS
277	!
278	!===============================================================================
279
280
281	!-------------------------------------------------------------------------------
282	!
283	SUBROUTINE get_2Dfield(fnam, varname, mode, ibar, ndays, champo, flag, mask)
284	!
285	!-----------------------------------------------------------------------------
286	! Comments:
287	! There are two assumptions concerning the NetCDF files, that are satisfied
288	! with files that are conforming NC convention:
289	! 1) The last dimension of the variables used is the time record.
290	! 2) Dimensional variables have the same names as corresponding dimensions.
291	!-----------------------------------------------------------------------------
292	USE netcdf, ONLY: NF90_OPEN, NF90_INQ_VARID, NF90_INQUIRE_VARIABLE, &
293	NF90_CLOSE, NF90_INQ_DIMID, NF90_INQUIRE_DIMENSION, NF90_GET_VAR, &
294	NF90_GET_ATT
295	USE dimphy, ONLY : klon
296	USE phys_state_var_mod, ONLY : pctsrf
297	USE control_mod
298	USE pchsp_95_m, only: pchsp_95
299	USE pchfe_95_m, only: pchfe_95
300	USE arth_m, only: arth
301	USE indice_sol_mod
302
303	IMPLICIT NONE
304	#include "dimensions.h"
305	#include "paramet.h"
306	#include "comgeom2.h"
307	#include "iniprint.h"
308	!-----------------------------------------------------------------------------
309	! Arguments:
310	CHARACTER(LEN=*), INTENT(IN) :: fnam ! NetCDF file name
311	CHARACTER(LEN=10), INTENT(IN) :: varname ! NetCDF variable name
312	CHARACTER(LEN=3), INTENT(IN) :: mode ! RUG, SIC, SST or ALB
313	LOGICAL, INTENT(IN) :: ibar ! interp on pressure levels
314	INTEGER, INTENT(IN) :: ndays ! current year number of days
315	REAL, POINTER, DIMENSION(:, :) :: champo ! output field = f(t)
316	LOGICAL, OPTIONAL, INTENT(IN) :: flag ! extrapol. (SST) old ice (SIC)
317	REAL, OPTIONAL, DIMENSION(iim, jjp1), INTENT(IN) :: mask
318	!------------------------------------------------------------------------------
319	! Local variables:
320	!--- NetCDF
321	INTEGER :: ncid, varid ! NetCDF identifiers
322	CHARACTER(LEN=30) :: dnam ! dimension name
323	!--- dimensions
324	INTEGER, DIMENSION(4) :: dids ! NetCDF dimensions identifiers
325	REAL, ALLOCATABLE, DIMENSION(:) :: dlon_ini ! initial longitudes vector
326	REAL, ALLOCATABLE, DIMENSION(:) :: dlat_ini ! initial latitudes vector
327	REAL, POINTER, DIMENSION(:) :: dlon, dlat ! reordered lon/lat vectors
328	!--- fields
329	INTEGER :: imdep, jmdep, lmdep ! dimensions of 'champ'
330	REAL, ALLOCATABLE, DIMENSION(:, :) :: champ ! wanted field on initial grid
331	REAL, ALLOCATABLE, DIMENSION(:) :: yder, timeyear
332	REAL, DIMENSION(iim, jjp1) :: champint ! interpolated field
333	REAL, ALLOCATABLE, DIMENSION(:, :, :) :: champtime
334	REAL, ALLOCATABLE, DIMENSION(:, :, :) :: champan
335	!--- input files
336	CHARACTER(LEN=20) :: cal_in ! calendar
337	CHARACTER(LEN=20) :: unit_sic ! attribute unit in sea-ice file
338	INTEGER :: ndays_in ! number of days
339	!--- misc
340	INTEGER :: i, j, k, l ! loop counters
341	REAL, ALLOCATABLE, DIMENSION(:, :) :: work ! used for extrapolation
342	CHARACTER(LEN=25) :: title ! for messages
343	LOGICAL :: extrp ! flag for extrapolation
344	LOGICAL :: oldice ! flag for old way ice computation
345	REAL :: chmin, chmax
346	INTEGER ierr
347	integer n_extrap ! number of extrapolated points
348	logical skip
349
350	!------------------------------------------------------------------------------
351	!---Variables depending on keyword 'mode' -------------------------------------
352	NULLIFY(champo)
353
354	SELECT CASE(mode)
355	CASE('RUG'); title='Rugosite'
356	CASE('SIC'); title='Sea-ice'
357	CASE('SST'); title='SST'
358	CASE('ALB'); title='Albedo'
359	END SELECT
360
361
362	extrp=.FALSE.
363	oldice=.FALSE.
364	IF ( PRESENT(flag) ) THEN
365	IF ( flag .AND. mode=='SST' ) extrp=.TRUE.
366	IF ( flag .AND. mode=='SIC' ) oldice=.TRUE.
367	END IF
368
369	!--- GETTING SOME DIMENSIONAL VARIABLES FROM FILE -----------------------------
370	IF (prt_level>5) WRITE(lunout,*) ' Now reading file : ',fnam
371	ierr=NF90_OPEN(fnam, NF90_NOWRITE, ncid); CALL ncerr(ierr, fnam)
372	ierr=NF90_INQ_VARID(ncid, trim(varname), varid); CALL ncerr(ierr, fnam)
373	ierr=NF90_INQUIRE_VARIABLE(ncid, varid, dimids=dids); CALL ncerr(ierr, fnam)
374
375	!--- Read unit for sea-ice variable only
376	IF (mode=='SIC') THEN
377	ierr=NF90_GET_ATT(ncid, varid, 'units', unit_sic)
378	IF(ierr/=NF90_NOERR) THEN
379	IF (prt_level>5) WRITE(lunout,*) 'No unit was given in sea-ice file. Take percentage as default value'
380	unit_sic='X'
381	ELSE
382	IF (prt_level>5) WRITE(lunout,*) ' Sea-ice cover has unit=',unit_sic
383	END IF
384	END IF
385
386	!--- Longitude
387	ierr=NF90_INQUIRE_DIMENSION(ncid, dids(1), name=dnam, len=imdep)
388	CALL ncerr(ierr, fnam); ALLOCATE(dlon_ini(imdep), dlon(imdep))
389	ierr=NF90_INQ_VARID(ncid, dnam, varid); CALL ncerr(ierr, fnam)
390	ierr=NF90_GET_VAR(ncid, varid, dlon_ini); CALL ncerr(ierr, fnam)
391	IF (prt_level>5) WRITE(lunout, *) 'variable ', dnam, 'dimension ', imdep
392
393	!--- Latitude
394	ierr=NF90_INQUIRE_DIMENSION(ncid, dids(2), name=dnam, len=jmdep)
395	CALL ncerr(ierr, fnam); ALLOCATE(dlat_ini(jmdep), dlat(jmdep))
396	ierr=NF90_INQ_VARID(ncid, dnam, varid); CALL ncerr(ierr, fnam)
397	ierr=NF90_GET_VAR(ncid, varid, dlat_ini); CALL ncerr(ierr, fnam)
398	IF (prt_level>5) WRITE(lunout, *) 'variable ', dnam, 'dimension ', jmdep
399
400	!--- Time (variable is not needed - it is rebuilt - but calendar is)
401	ierr=NF90_INQUIRE_DIMENSION(ncid, dids(3), name=dnam, len=lmdep)
402	CALL ncerr(ierr, fnam); ALLOCATE(timeyear(lmdep))
403	ierr=NF90_INQ_VARID(ncid, dnam, varid); CALL ncerr(ierr, fnam)
404	cal_in=' '
405	ierr=NF90_GET_ATT(ncid, varid, 'calendar', cal_in)
406	IF(ierr/=NF90_NOERR) THEN
407	SELECT CASE(mode)
408	CASE('RUG', 'ALB'); cal_in='360d'
409	CASE('SIC', 'SST'); cal_in='gregorian'
410	END SELECT
411	IF (prt_level>5) WRITE(lunout, *)'ATTENTION: variable "time" sans attribut "calendrier" ' &
412	// 'dans '//TRIM(fnam)//'. On choisit la valeur par defaut.'
413	END IF
414	IF (prt_level>5) WRITE(lunout, *) 'variable ', dnam, 'dimension ', lmdep, 'calendrier ', &
415	cal_in
416
417
418	!--- CONSTRUCTING THE INPUT TIME VECTOR FOR INTERPOLATION --------------------
419	!--- Determining input file number of days, depending on calendar
420	ndays_in=year_len(anneeref, cal_in)
421
422	!--- Time vector reconstruction (time vector from file is not trusted)
423	!--- If input records are not monthly, time sampling has to be constant !
424	timeyear=mid_months(anneeref, cal_in, lmdep)
425	IF (lmdep /= 12) WRITE(lunout,*) 'Note : les fichiers de ', TRIM(mode), &
426	' ne comportent pas 12, mais ', lmdep, ' enregistrements.'
427
428	!--- GETTING THE FIELD AND INTERPOLATING IT ----------------------------------
429	ALLOCATE(champ(imdep, jmdep), champtime(iim, jjp1, lmdep))
430	IF(extrp) ALLOCATE(work(imdep, jmdep))
431
432	IF (prt_level>5) WRITE(lunout, *)
433	IF (prt_level>5) WRITE(lunout,*)'LECTURE ET INTERPOLATION HORIZ. DE ', lmdep, ' CHAMPS.'
434	ierr=NF90_INQ_VARID(ncid, varname, varid); CALL ncerr(ierr, fnam)
435	DO l=1, lmdep
436	ierr=NF90_GET_VAR(ncid, varid, champ, (/1, 1, l/), (/imdep, jmdep, 1/))
437	CALL ncerr(ierr, fnam)
438	CALL conf_dat2d(title, imdep, jmdep, dlon_ini, dlat_ini, dlon, dlat, &
439	champ, ibar)
440
441	IF (extrp) CALL extrapol(champ, imdep, jmdep, 999999., .TRUE., .TRUE., 2, &
442	work)
443
444	IF(ibar .AND. .NOT.oldice) THEN
445	IF(l==1 .AND. prt_level>5) THEN
446	WRITE(lunout, *) '-------------------------------------------------------------------------'
447	WRITE(lunout, *) 'Utilisation de l''interpolation barycentrique pour ',TRIM(title),' $$$'
448	WRITE(lunout, *) '-------------------------------------------------------------------------'
449	END IF
450	IF(mode=='RUG') champ=LOG(champ)
451	CALL inter_barxy(dlon, dlat(:jmdep-1), champ, rlonu(:iim), &
452	rlatv, champint)
453	IF(mode=='RUG') THEN
454	champint=EXP(champint)
455	WHERE(NINT(mask)/=1) champint=0.001
456	END IF
457	ELSE
458	SELECT CASE(mode)
459	CASE('RUG'); CALL rugosite(imdep, jmdep, dlon, dlat, champ, &
460	iim, jjp1, rlonv, rlatu, champint, mask)
461	CASE('SIC'); CALL sea_ice (imdep, jmdep, dlon, dlat, champ, &
462	iim, jjp1, rlonv, rlatu, champint)
463	CASE('SST', 'ALB'); CALL grille_m(imdep, jmdep, dlon, dlat, champ, &
464	iim, jjp1, rlonv, rlatu, champint)
465	END SELECT
466	END IF
467	champtime(:, :, l)=champint
468	END DO
469	ierr=NF90_CLOSE(ncid); CALL ncerr(ierr, fnam)
470
471	DEALLOCATE(dlon_ini, dlat_ini, dlon, dlat, champ)
472	IF(extrp) DEALLOCATE(work)
473
474	!--- TIME INTERPOLATION ------------------------------------------------------
475	IF (prt_level>5) THEN
476	WRITE(lunout, *)
477	WRITE(lunout, *)'INTERPOLATION TEMPORELLE.'
478	WRITE(lunout, *)' Vecteur temps en entree: ', timeyear
479	WRITE(lunout, *)' Vecteur temps en sortie de 0 a ', ndays
480	END IF
481
482	ALLOCATE(yder(lmdep), champan(iip1, jjp1, ndays))
483	skip = .false.
484	n_extrap = 0
485	DO j=1, jjp1
486	DO i=1, iim
487	yder = pchsp_95(timeyear, champtime(i, j, :), ibeg=2, iend=2, &
488	vc_beg=0., vc_end=0.)
489	CALL pchfe_95(timeyear, champtime(i, j, :), yder, skip, &
490	arth(0., real(ndays_in) / ndays, ndays), champan(i, j, :), ierr)
491	if (ierr < 0) stop 1
492	n_extrap = n_extrap + ierr
493	END DO
494	END DO
495	if (n_extrap /= 0) then
496	WRITE(lunout,*) "get_2Dfield pchfe_95: n_extrap = ", n_extrap
497	end if
498	champan(iip1, :, :)=champan(1, :, :)
499	DEALLOCATE(yder, champtime, timeyear)
500
501	!--- Checking the result
502	DO j=1, jjp1
503	CALL minmax(iip1, champan(1, j, 10), chmin, chmax)
504	IF (prt_level>5) WRITE(lunout, *)' ',TRIM(title),' au temps 10 ', chmin, chmax, j
505	END DO
506
507	!--- SPECIAL FILTER FOR SST: SST>271.38 --------------------------------------
508	IF(mode=='SST') THEN
509	IF (prt_level>5) WRITE(lunout, *) 'Filtrage de la SST: SST >= 271.38'
510	WHERE(champan<271.38) champan=271.38
511	END IF
512
513	!--- SPECIAL FILTER FOR SIC: 0.0<SIC<1.0 -------------------------------------
514	IF(mode=='SIC') THEN
515	IF (prt_level>5) WRITE(lunout, *) 'Filtrage de la SIC: 0.0 < Sea-ice < 1.0'
516
517	IF (unit_sic=='1') THEN
518	! Nothing to be done for sea-ice field is already in fraction of 1
519	! This is the case for sea-ice in file cpl_atm_sic.nc
520	IF (prt_level>5) WRITE(lunout,*) 'Sea-ice field already in fraction of 1'
521	ELSE
522	! Convert sea ice from percentage to fraction of 1
523	IF (prt_level>5) WRITE(lunout,*) 'Transformt sea-ice field from percentage to fraction of 1.'
524	champan(:, :, :)=champan(:, :, :)/100.
525	END IF
526
527	champan(iip1, :, :)=champan(1, :, :)
528	WHERE(champan>1.0) champan=1.0
529	WHERE(champan<0.0) champan=0.0
530	END IF
531
532	!--- DYNAMICAL TO PHYSICAL GRID ----------------------------------------------
533	ALLOCATE(champo(klon, ndays))
534	DO k=1, ndays
535	CALL gr_dyn_fi(1, iip1, jjp1, klon, champan(1, 1, k), champo(1, k))
536	END DO
537	DEALLOCATE(champan)
538
539	END SUBROUTINE get_2Dfield
540	!
541	!-------------------------------------------------------------------------------
542
543
544
545	!-------------------------------------------------------------------------------
546	!
547	FUNCTION year_len(y,cal_in)
548	!
549	!-------------------------------------------------------------------------------
550	USE ioipsl, ONLY : ioget_calendar,ioconf_calendar,lock_calendar,ioget_year_len
551	IMPLICIT NONE
552	!-------------------------------------------------------------------------------
553	! Arguments:
554	INTEGER :: year_len
555	INTEGER, INTENT(IN) :: y
556	CHARACTER(LEN=*), INTENT(IN) :: cal_in
557	!-------------------------------------------------------------------------------
558	! Local variables:
559	CHARACTER(LEN=20) :: cal_out ! calendar (for outputs)
560	!-------------------------------------------------------------------------------
561	!--- Getting the input calendar to reset at the end of the function
562	CALL ioget_calendar(cal_out)
563
564	!--- Unlocking calendar and setting it to wanted one
565	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_in))
566
567	!--- Getting the number of days in this year
568	year_len=ioget_year_len(y)
569
570	!--- Back to original calendar
571	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_out))
572
573	END FUNCTION year_len
574	!
575	!-------------------------------------------------------------------------------
576
577
578	!-------------------------------------------------------------------------------
579	!
580	FUNCTION mid_months(y,cal_in,nm)
581	!
582	!-------------------------------------------------------------------------------
583	USE ioipsl, ONLY : ioget_calendar,ioconf_calendar,lock_calendar,ioget_mon_len
584	IMPLICIT NONE
585	!-------------------------------------------------------------------------------
586	! Arguments:
587	INTEGER, INTENT(IN) :: y ! year
588	CHARACTER(LEN=*), INTENT(IN) :: cal_in ! calendar
589	INTEGER, INTENT(IN) :: nm ! months/year number
590	REAL, DIMENSION(nm) :: mid_months ! mid-month times
591	!-------------------------------------------------------------------------------
592	! Local variables:
593	CHARACTER(LEN=99) :: mess ! error message
594	CHARACTER(LEN=20) :: cal_out ! calendar (for outputs)
595	INTEGER, DIMENSION(nm) :: mnth ! months lengths (days)
596	INTEGER :: m ! months counter
597	INTEGER :: nd ! number of days
598	!-------------------------------------------------------------------------------
599	nd=year_len(y,cal_in)
600
601	IF(nm==12) THEN
602
603	!--- Getting the input calendar to reset at the end of the function
604	CALL ioget_calendar(cal_out)
605
606	!--- Unlocking calendar and setting it to wanted one
607	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_in))
608
609	!--- Getting the length of each month
610	DO m=1,nm; mnth(m)=ioget_mon_len(y,m); END DO
611
612	!--- Back to original calendar
613	CALL lock_calendar(.FALSE.); CALL ioconf_calendar(TRIM(cal_out))
614
615	ELSE IF(MODULO(nd,nm)/=0) THEN
616	WRITE(mess,'(a,i3,a,i3,a)')'Unconsistent calendar: ',nd,' days/year, but ',&
617	nm,' months/year. Months number should divide days number.'
618	CALL abort_gcm('mid_months',TRIM(mess),1)
619
620	ELSE
621	mnth=(/(m,m=1,nm,nd/nm)/)
622	END IF
623
624	!--- Mid-months times
625	mid_months(1)=0.5*REAL(mnth(1))
626	DO k=2,nm
627	mid_months(k)=mid_months(k-1)+0.5*REAL(mnth(k-1)+mnth(k))
628	END DO
629
630	END FUNCTION mid_months
631	!
632	!-------------------------------------------------------------------------------
633
634
635	!-------------------------------------------------------------------------------
636	!
637	SUBROUTINE ncerr(ncres,fnam)
638	!
639	!-------------------------------------------------------------------------------
640	! Purpose: NetCDF errors handling.
641	!-------------------------------------------------------------------------------
642	USE netcdf, ONLY : NF90_NOERR, NF90_STRERROR
643	IMPLICIT NONE
644	!-------------------------------------------------------------------------------
645	! Arguments:
646	INTEGER, INTENT(IN) :: ncres
647	CHARACTER(LEN=*), INTENT(IN) :: fnam
648	!-------------------------------------------------------------------------------
649	#include "iniprint.h"
650	IF(ncres/=NF90_NOERR) THEN
651	WRITE(lunout,*)'Problem with file '//TRIM(fnam)//' in routine limit_netcdf.'
652	CALL abort_gcm('limit_netcdf',NF90_STRERROR(ncres),1)
653	END IF
654
655	END SUBROUTINE ncerr
656	!
657	!-------------------------------------------------------------------------------
658
659	#endif
660	! of #ifdef CPP_EARTH
661
662	END SUBROUTINE limit_netcdf

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