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obcdta.F90 in tags/nemo_v3_2_beta/NEMO/OPA_SRC/OBC – NEMO

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source: tags/nemo_v3_2_beta/NEMO/OPA_SRC/OBC/obcdta.F90 @ 4839

Last change on this file since 4839 was 1528, checked in by rblod, 15 years ago
Suppress rigid-lid option, see ticket #486
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 57.9 KB

Line
1	MODULE obcdta
2	!!==============================================================================
3	!! * MODULE obcdta *
4	!! Open boundary data : read the data for the open boundaries.
5	!!==============================================================================
6	#if defined key_obc
7	!!------------------------------------------------------------------------------
8	!! 'key_obc' : Open Boundary Conditions
9	!!------------------------------------------------------------------------------
10	!! obc_dta : read u, v, t, s data along each open boundary
11	!!------------------------------------------------------------------------------
12	!! * Modules used
13	USE oce ! ocean dynamics and tracers
14	USE dom_oce ! ocean space and time domain
15	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
16	USE phycst ! physical constants
17	USE obc_oce ! ocean open boundary conditions
18	USE daymod ! calendar
19	USE in_out_manager ! I/O logical units
20	USE lib_mpp ! distributed memory computing
21	USE dynspg_oce
22	USE ioipsl ! now only for ymds2ju function
23	USE iom !
24
25	IMPLICIT NONE
26	PRIVATE
27
28	!! * Accessibility
29	PUBLIC obc_dta ! routines called by step.F90
30	PUBLIC obc_dta_bt ! routines called by dynspg_ts.F90
31
32	!! * Shared module variables
33	REAL(wp), DIMENSION(2) :: zjcnes_obc !
34	REAL(wp), DIMENSION(:), ALLOCATABLE :: ztcobc
35	REAL(wp) :: rdt_obc
36	REAL(wp) :: zjcnes
37	INTEGER :: imm0, iyy0, idd0, iyy, imm, idd
38	INTEGER :: nt_a=2, nt_b=1, itobc, ndate0_cnes, nday_year0
39	INTEGER :: itobce, itobcw, itobcs, itobcn, itobc_b ! number of time steps in OBC files
40	REAL(wp) :: zraaj=365.
41
42	INTEGER :: &
43	ntobc , & !: where we are in the obc file
44	ntobc_b , & !: first record used
45	ntobc_a !: second record used
46
47	CHARACTER (len=40) :: & ! name of data files
48	cl_obc_eTS , cl_obc_eU, &
49	cl_obc_wTS , cl_obc_wU, &
50	cl_obc_nTS , cl_obc_nV, &
51	cl_obc_sTS , cl_obc_sV
52
53	! arrays used for interpolating time dependent data on the boundaries
54	REAL(wp), DIMENSION(jpj,jpk,jptobc) :: uedta, vedta, tedta, sedta ! East
55	REAL(wp), DIMENSION(jpj,jpk,jptobc) :: uwdta, vwdta, twdta, swdta ! West
56	REAL(wp), DIMENSION(jpi,jpk,jptobc) :: undta, vndta, tndta, sndta ! North
57	REAL(wp), DIMENSION(jpi,jpk,jptobc) :: usdta, vsdta, tsdta, ssdta ! South
58
59	LOGICAL, DIMENSION (jpj,jpk ) :: ltemsk=.TRUE., luemsk=.TRUE., lvemsk=.TRUE. ! boolean msks
60	LOGICAL, DIMENSION (jpj,jpk ) :: ltwmsk=.TRUE., luwmsk=.TRUE., lvwmsk=.TRUE. ! used for outliers
61	LOGICAL, DIMENSION (jpi,jpk ) :: ltnmsk=.TRUE., lunmsk=.TRUE., lvnmsk=.TRUE. ! checks
62	LOGICAL, DIMENSION (jpi,jpk ) :: ltsmsk=.TRUE., lusmsk=.TRUE., lvsmsk=.TRUE.
63
64	!! * Substitutions
65	# include "obc_vectopt_loop_substitute.h90"
66	!!----------------------------------------------------------------------
67	!! OPA 9.0 , LOCEAN-IPSL (2006)
68	!! $Id$
69	!! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt)
70	!!----------------------------------------------------------------------
71
72	CONTAINS
73
74	SUBROUTINE obc_dta( kt )
75	!!---------------------------------------------------------------------------
76	!! * SUBROUTINE obc_dta *
77	!!
78	!! ** Purpose : Find the climatological boundary arrays for the specified date,
79	!! The boundary arrays are netcdf files. Three possible cases:
80	!! - one time frame only in the file (time dimension = 1).
81	!! in that case the boundary data does not change in time.
82	!! - many time frames. In that case, if we have 12 frames
83	!! we assume monthly fields.
84	!! Else, we assume that time_counter is in seconds
85	!! since the beginning of either the current year or a reference
86	!! year given in the namelist.
87	!! (no check is done so far but one would have to check the "unit"
88	!! attribute of variable time_counter).
89	!!
90	!!
91	!! History :
92	!! ! 98-05 (J.M. Molines) Original code
93	!! 8.5 ! 02-10 (C. Talandier, A-M. Treguier) Free surface, F90
94	!!
95	!! 9.0 ! 04-06 (F. Durand, A-M. Treguier) Netcdf BC files on input
96	!! ! 2007-2008 (C. Langlais, P. Mathiot, J.M. Molines) high frequency boundaries data
97	!!---------------------------------------------------------------------------
98	!! * Arguments
99	INTEGER, INTENT( in ) :: kt ! ocean time-step index
100
101	!! * Local declarations
102	INTEGER :: ji, jj, jk, ii, ij ,it ! dummy loop indices
103	INTEGER :: ikprint ! frequency for printouts.
104	INTEGER, SAVE :: immfile, iyyfile !
105	INTEGER :: nt ! record indices (incrementation)
106	INTEGER :: istop ! local error check
107
108	REAL(wp) :: zxy, znum, zden ! time interpolation weight
109
110	! variables for the julian day calculation
111	INTEGER :: iyear, imonth, iday
112	REAL(wp) :: zsec , zjulian, zjuliancnes
113
114	! IOM STUFF
115	INTEGER :: idvar, id_e, id_w, id_n, id_s, id_x ! file identifiers
116	INTEGER, DIMENSION(1) :: itmp
117	CHARACTER(LEN=25) :: cl_vname
118
119	!!---------------------------------------------------------------------------
120
121	! 0. initialisation :
122	! --------------------
123	IF ( kt == nit000 ) CALL obc_dta_ini ( kt )
124	IF ( nobc_dta == 0 ) RETURN ! already done in obc_dta_ini
125	IF ( itobc == 1 ) RETURN ! case of only one time frame in file done in obc_dta_ini
126
127	! in the following code, we assume that obc data are read from files, with more than 1 time frame in it
128
129	iyyfile=iyy ; immfile = 00 ! set component of the current file name
130	IF ( cffile /= 'annual') immfile = imm !
131	IF ( ln_obc_clim ) iyyfile = 0000 ! assume that climatological files are labeled y0000
132
133	! 1. Synchronize time of run with time of data files
134	!---------------------------------------------------
135	! nday_year is the day number in the current year ( 1 for 01/01 )
136	zsec=MOD( (kt-nit000)rdt - (nday_year - nday_year0 )rday, rday ) ! number of seconds in the current day
137	IF (ln_obc_clim) THEN
138	zjcnes = nday_year - 1 + zsec/rday
139	ELSE
140	zjcnes = zjcnes + rdt/rday
141	ENDIF
142
143	! look for 'before' record number in the current file
144	ntobc = nrecbef () ! this function return the record number for 'before', relative to zjcnes
145
146	IF (MOD(kt-1,10)==0) THEN
147	IF (lwp) WRITE(numout,*) 'kt= ',kt,' zjcnes =', zjcnes,' ndastp =',ndastp, 'mm =',imm
148	END IF
149
150	! 2. read a new data if necessary
151	!--------------------------------
152	IF ( ntobc /= ntobc_b ) THEN
153	! we need to read the 'after' record
154	! swap working index:
155	nt=nt_b ; nt_b=nt_a ; nt_a=nt
156	ntobc_b = ntobc
157
158	! new record number :
159	ntobc_a = ntobc_a + 1
160
161	! all tricky things related to record number, changing files etc... are managed by obc_read
162
163	CALL obc_read (kt, nt_a, ntobc_a, iyyfile, immfile )
164
165	! update zjcnes_obc
166	zjcnes_obc(nt_b)= ztcobc(ntobc_b)
167	zjcnes_obc(nt_a)= ztcobc(ntobc_a)
168	ENDIF
169
170	! 3. interpolation at each time step
171	! ------------------------------------
172	IF ( ln_obc_clim) THEN
173	znum= MOD(zjcnes - zjcnes_obc(nt_b), zraaj ) ; IF ( znum < 0 ) znum = znum + zraaj
174	zden= MOD(zjcnes_obc(nt_a) - zjcnes_obc(nt_b), zraaj ) ; IF ( zden < 0 ) zden = zden + zraaj
175	ELSE
176	znum= zjcnes - zjcnes_obc(nt_b)
177	zden= zjcnes_obc(nt_a) - zjcnes_obc(nt_b)
178	ENDIF
179	zxy = znum / zden
180
181	IF( lp_obc_east ) THEN
182	! fills sfoe, tfoe, ufoe ,vfoe
183	sfoe(:,:) = zxy * sedta (:,:,nt_a) + (1. - zxy)*sedta(:,:,nt_b)
184	tfoe(:,:) = zxy * tedta (:,:,nt_a) + (1. - zxy)*tedta(:,:,nt_b)
185	ufoe(:,:) = zxy * uedta (:,:,nt_a) + (1. - zxy)*uedta(:,:,nt_b)
186	vfoe(:,:) = zxy * vedta (:,:,nt_a) + (1. - zxy)*vedta(:,:,nt_b)
187	ENDIF
188
189	IF( lp_obc_west) THEN
190	! fills sfow, tfow, ufow ,vfow
191	sfow(:,:) = zxy * swdta (:,:,nt_a) + (1. - zxy)*swdta(:,:,nt_b)
192	tfow(:,:) = zxy * twdta (:,:,nt_a) + (1. - zxy)*twdta(:,:,nt_b)
193	ufow(:,:) = zxy * uwdta (:,:,nt_a) + (1. - zxy)*uwdta(:,:,nt_b)
194	vfow(:,:) = zxy * vwdta (:,:,nt_a) + (1. - zxy)*vwdta(:,:,nt_b)
195	ENDIF
196
197	IF( lp_obc_north) THEN
198	! fills sfon, tfon, ufon ,vfon
199	sfon(:,:) = zxy * sndta (:,:,nt_a) + (1. - zxy)*sndta(:,:,nt_b)
200	tfon(:,:) = zxy * tndta (:,:,nt_a) + (1. - zxy)*tndta(:,:,nt_b)
201	ufon(:,:) = zxy * undta (:,:,nt_a) + (1. - zxy)*undta(:,:,nt_b)
202	vfon(:,:) = zxy * vndta (:,:,nt_a) + (1. - zxy)*vndta(:,:,nt_b)
203	ENDIF
204
205	IF( lp_obc_south) THEN
206	! fills sfos, tfos, ufos ,vfos
207	sfos(:,:) = zxy * ssdta (:,:,nt_a) + (1. - zxy)*ssdta(:,:,nt_b)
208	tfos(:,:) = zxy * tsdta (:,:,nt_a) + (1. - zxy)*tsdta(:,:,nt_b)
209	ufos(:,:) = zxy * usdta (:,:,nt_a) + (1. - zxy)*usdta(:,:,nt_b)
210	vfos(:,:) = zxy * vsdta (:,:,nt_a) + (1. - zxy)*vsdta(:,:,nt_b)
211	ENDIF
212	END SUBROUTINE obc_dta
213
214
215	SUBROUTINE obc_dta_ini (kt)
216	!!-----------------------------------------------------------------------------
217	!! * SUBROUTINE obc_dta_ini *
218	!!
219	!! ** Purpose :
220	!! When obc_dta first call, realize some data initialization
221	!!
222	!! ** Method :
223	!!
224	!! History :
225	!! 9.0 ! 07-10 (J.M. Molines )
226	!!----------------------------------------------------------------------------
227	!! * Argument
228	INTEGER, INTENT(in) :: kt ! ocean time-step index
229
230	!! * Local declarations
231	INTEGER :: ji,jj, it ! dummy loop indices
232
233	REAL(wp) :: zxy ! time interpolation weight
234
235	INTEGER :: ikprint ! frequency for printouts.
236
237	INTEGER, SAVE :: immfile, iyyfile !
238	INTEGER :: nt ! record indices (incrementation)
239	INTEGER :: istop ! local error check
240
241	! variables for the julian day calculation
242	INTEGER :: iyear, imonth, iday
243	REAL(wp) :: zsec , zjulian, zjuliancnes
244
245	! IOM STUFF
246	INTEGER :: idvar, id_e, id_w, id_n, id_s, id_x ! file identifiers
247	INTEGER, DIMENSION(1) :: itmp
248	CHARACTER(LEN=25) :: cl_vname
249
250	IF(lwp) WRITE(numout,*)
251	IF(lwp) WRITE(numout,*) 'obc_dta : find boundary data'
252	IF(lwp) WRITE(numout,*) '~~~~~~~'
253	IF (lwp) THEN
254	IF ( nobc_dta == 0 ) THEN
255	WRITE(numout,*) ' OBC data taken from initial conditions.'
256	ELSE
257	WRITE(numout,*) ' OBC data taken from netcdf files.'
258	ENDIF
259	ENDIF
260	nday_year0 = nday_year ! to remember the day when kt=nit000
261	SELECT CASE (nleapy)
262	CASE ( 0 ) ; zraaj = 365.e0
263	CASE ( 1 ) ; zraaj = 366.e0 !! ERROR TO CORRECT: NOT EVERY YEAR IS LEAP YEAR !! JMM
264	CASE DEFAULT; zraaj = 12.* nleapy
265	END SELECT
266
267	sedta(:,:,:) = 0.e0 ; tedta(:,:,:) = 0.e0 ; uedta(:,:,:) = 0.e0 ; vedta(:,:,:) = 0.e0 ! East
268	swdta(:,:,:) = 0.e0 ; twdta(:,:,:) = 0.e0 ; uwdta(:,:,:) = 0.e0 ; vwdta(:,:,:) = 0.e0 ! West
269	sndta(:,:,:) = 0.e0 ; tndta(:,:,:) = 0.e0 ; undta(:,:,:) = 0.e0 ; vndta(:,:,:) = 0.e0 ! North
270	ssdta(:,:,:) = 0.e0 ; tsdta(:,:,:) = 0.e0 ; usdta(:,:,:) = 0.e0 ; vsdta(:,:,:) = 0.e0 ! South
271
272	sfoe(:,:) = 0.e0 ; tfoe(:,:) = 0.e0 ; ufoe(:,:) = 0.e0 ; vfoe(:,:) = 0.e0 ! East
273	sfow(:,:) = 0.e0 ; tfow(:,:) = 0.e0 ; ufow(:,:) = 0.e0 ; vfow(:,:) = 0.e0 ! West
274	sfon(:,:) = 0.e0 ; tfon(:,:) = 0.e0 ; ufon(:,:) = 0.e0 ; vfon(:,:) = 0.e0 ! North
275	sfos(:,:) = 0.e0 ; tfos(:,:) = 0.e0 ; ufos(:,:) = 0.e0 ; vfos(:,:) = 0.e0 ! South
276
277	IF (nobc_dta == 0 ) THEN ! boundary data are the initial data of this run (set only at nit000)
278	IF (lp_obc_east) THEN ! East
279	DO ji = nie0 , nie1
280	sfoe(nje0p1:nje1m1,:) = temsk(nje0p1:nje1m1,:) * sn (ji+1 , nje0p1:nje1m1 , :)
281	tfoe(nje0p1:nje1m1,:) = temsk(nje0p1:nje1m1,:) * tn (ji+1 , nje0p1:nje1m1 , :)
282	ufoe(nje0p1:nje1m1,:) = uemsk(nje0p1:nje1m1,:) * un (ji , nje0p1:nje1m1 , :)
283	vfoe(nje0p1:nje1m1,:) = vemsk(nje0p1:nje1m1,:) * vn (ji+1 , nje0p1:nje1m1 , :)
284	END DO
285	ENDIF
286
287	IF (lp_obc_west) THEN ! West
288	DO ji = niw0 , niw1
289	sfow(njw0p1:njw1m1,:) = twmsk(njw0p1:njw1m1,:) * sn (ji , njw0p1:njw1m1 , :)
290	tfow(njw0p1:njw1m1,:) = twmsk(njw0p1:njw1m1,:) * tn (ji , njw0p1:njw1m1 , :)
291	ufow(njw0p1:njw1m1,:) = uwmsk(njw0p1:njw1m1,:) * un (ji , njw0p1:njw1m1 , :)
292	vfow(njw0p1:njw1m1,:) = vwmsk(njw0p1:njw1m1,:) * vn (ji , njw0p1:njw1m1 , :)
293	END DO
294	ENDIF
295
296	IF (lp_obc_north) THEN ! North
297	DO jj = njn0 , njn1
298	sfon(nin0p1:nin1m1,:) = tnmsk(nin0p1:nin1m1,:) * sn (nin0p1:nin1m1 , jj+1 , :)
299	tfon(nin0p1:nin1m1,:) = tnmsk(nin0p1:nin1m1,:) * tn (nin0p1:nin1m1 , jj+1 , :)
300	ufon(nin0p1:nin1m1,:) = unmsk(nin0p1:nin1m1,:) * un (nin0p1:nin1m1 , jj+1 , :)
301	vfon(nin0p1:nin1m1,:) = vnmsk(nin0p1:nin1m1,:) * vn (nin0p1:nin1m1 , jj , :)
302	END DO
303	ENDIF
304
305	IF (lp_obc_south) THEN ! South
306	DO jj = njs0 , njs1
307	sfos(nis0p1:nis1m1,:) = tsmsk(nis0p1:nis1m1,:) * sn (nis0p1:nis1m1 , jj , :)
308	tfos(nis0p1:nis1m1,:) = tsmsk(nis0p1:nis1m1,:) * tn (nis0p1:nis1m1 , jj , :)
309	ufos(nis0p1:nis1m1,:) = usmsk(nis0p1:nis1m1,:) * un (nis0p1:nis1m1 , jj , :)
310	vfos(nis0p1:nis1m1,:) = vsmsk(nis0p1:nis1m1,:) * vn (nis0p1:nis1m1 , jj , :)
311	END DO
312	ENDIF
313	RETURN ! exit the routine all is done
314	ENDIF ! nobc_dta = 0
315
316	!!!! In the following OBC data are read from files.
317	! all logical-mask are initialzed to true when declared
318	WHERE ( temsk == 0 ) ltemsk=.FALSE.
319	WHERE ( uemsk == 0 ) luemsk=.FALSE.
320	WHERE ( vemsk == 0 ) lvemsk=.FALSE.
321
322	WHERE ( twmsk == 0 ) ltwmsk=.FALSE.
323	WHERE ( uwmsk == 0 ) luwmsk=.FALSE.
324	WHERE ( vwmsk == 0 ) lvwmsk=.FALSE.
325
326	WHERE ( tnmsk == 0 ) ltnmsk=.FALSE.
327	WHERE ( unmsk == 0 ) lunmsk=.FALSE.
328	WHERE ( vnmsk == 0 ) lvnmsk=.FALSE.
329
330	WHERE ( tsmsk == 0 ) ltsmsk=.FALSE.
331	WHERE ( usmsk == 0 ) lusmsk=.FALSE.
332	WHERE ( vsmsk == 0 ) lvsmsk=.FALSE.
333
334	iyear=1950; imonth=01; iday=01; zsec=0.
335	! zjuliancnes : julian day corresonding to 01/01/1950
336	CALL ymds2ju(iyear, imonth, iday,zsec , zjuliancnes)
337
338	!current year and curent month
339	iyy=INT(ndastp/10000) ; imm=INT((ndastp -iyy10000)/100) ; idd=(ndastp-iyy10000-imm*100)
340	IF (iyy < 1900) iyy = iyy+1900 ! always assume that years are on 4 digits.
341	CALL ymds2ju(iyy, imm, idd ,zsec , zjulian)
342	ndate0_cnes = zjulian - zjuliancnes ! jcnes day when call to obc_dta_ini
343
344	iyyfile=iyy ; immfile=0 ! set component of the current file name
345	IF ( cffile /= 'annual') immfile=imm
346	IF ( ln_obc_clim) iyyfile = 0 ! assume that climatological files are labeled y0000
347
348	CALL obc_dta_chktime ( iyyfile, immfile )
349
350	IF ( itobc == 1 ) THEN
351	! in this case we will provide boundary data only once.
352	nt_a=1 ; ntobc_a=1
353	CALL obc_read (nit000, nt_a, ntobc_a, iyyfile, immfile)
354	IF( lp_obc_east ) THEN
355	! fills sfoe, tfoe, ufoe ,vfoe
356	sfoe(:,:) = sedta (:,:,1) ; tfoe(:,:) = tedta (:,:,1)
357	ufoe(:,:) = uedta (:,:,1) ; vfoe(:,:) = vedta (:,:,1)
358	ENDIF
359
360	IF( lp_obc_west) THEN
361	! fills sfow, tfow, ufow ,vfow
362	sfow(:,:) = swdta (:,:,1) ; tfow(:,:) = twdta (:,:,1)
363	ufow(:,:) = uwdta (:,:,1) ; vfow(:,:) = vwdta (:,:,1)
364	ENDIF
365
366	IF( lp_obc_north) THEN
367	! fills sfon, tfon, ufon ,vfon
368	sfon(:,:) = sndta (:,:,1) ; tfon(:,:) = tndta (:,:,1)
369	ufon(:,:) = undta (:,:,1) ; vfon(:,:) = vndta (:,:,1)
370	ENDIF
371
372	IF( lp_obc_south) THEN
373	! fills sfos, tfos, ufos ,vfos
374	sfos(:,:) = ssdta (:,:,1) ; tfos(:,:) = tsdta (:,:,1)
375	ufos(:,:) = usdta (:,:,1) ; vfos(:,:) = vsdta (:,:,1)
376	ENDIF
377	RETURN ! we go out of obc_dta_ini -------------------------------------->>>>>
378	ENDIF
379
380	! nday_year is the day number in the current year ( 1 for 01/01 )
381	! we suppose that we always start from the begining of a day
382	! zsec=MOD( (kt-nit000)rdt - (nday_year - nday_year0 )rday, rday ) ! number of seconds in the current day
383	zsec=0.e0 ! here, kt=nit000, nday_year = ndat_year0
384
385	IF (ln_obc_clim) THEN
386	zjcnes = nday_year - 1 + zsec/rday ! for clim file time is in days in a year
387	ELSE
388	zjcnes = ndate0_cnes + (nday_year - nday_year0 ) + zsec/rday
389	ENDIF
390
391	! look for 'before' record number in the current file
392	ntobc = nrecbef ()
393
394	IF (lwp) WRITE(numout,*) 'obc files frequency :',cffile
395	IF (lwp) WRITE(numout,*) ' zjcnes0 =',zjcnes,' ndastp0 =',ndastp
396	IF (lwp) WRITE(numout,*) ' annee0 ',iyy,' month0 ', imm,' day0 ', idd
397	IF (lwp) WRITE(numout,*) 'first file open :',cl_obc_nTS
398
399	! record initialisation
400	!--------------------
401	nt_b = 1 ; nt_a = 2
402
403	ntobc_a = ntobc + 1
404	ntobc_b = ntobc
405
406	CALL obc_read (kt, nt_b, ntobc_b, iyyfile, immfile) ! read 'before' fields
407	CALL obc_read (kt, nt_a, ntobc_a, iyyfile, immfile) ! read 'after' fields
408
409	zjcnes_obc(nt_b)= ztcobc(ntobc_b)
410	zjcnes_obc(nt_a)= ztcobc(ntobc_a)
411	!
412	END SUBROUTINE obc_dta_ini
413
414
415	SUBROUTINE obc_dta_chktime (kyyfile, kmmfile)
416	!
417	! check the number of time steps in the files and read ztcobc
418	!
419	! * Arguments
420	INTEGER, INTENT(in) :: kyyfile, kmmfile
421	! * local variables
422	INTEGER :: istop ! error control
423	INTEGER :: ji ! dummy loop index
424
425	INTEGER :: idvar, id_e, id_w, id_n, id_s, id_x ! file identifiers
426	INTEGER, DIMENSION(1) :: itmp
427	CHARACTER(LEN=25) :: cl_vname
428
429	ntobc_a = 0; itobce =0 ; itobcw = 0; itobcn = 0; itobcs = 0
430	! build file name
431	WRITE(cl_obc_eTS ,'("obc_east_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
432	WRITE(cl_obc_wTS ,'("obc_west_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
433	WRITE(cl_obc_nTS ,'("obc_north_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
434	WRITE(cl_obc_sTS ,'("obc_south_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
435
436	cl_vname = 'time_counter'
437	IF ( lp_obc_east ) THEN
438	CALL iom_open ( cl_obc_eTS , id_e )
439	idvar = iom_varid( id_e, cl_vname, kdimsz = itmp ); itobce=itmp(1)
440	ENDIF
441	IF ( lp_obc_west ) THEN
442	CALL iom_open ( cl_obc_wTS , id_w )
443	idvar = iom_varid( id_w, cl_vname, kdimsz = itmp ) ; itobcw=itmp(1)
444	ENDIF
445	IF ( lp_obc_north ) THEN
446	CALL iom_open ( cl_obc_nTS , id_n )
447	idvar = iom_varid( id_n, cl_vname, kdimsz = itmp ) ; itobcn=itmp(1)
448	ENDIF
449	IF ( lp_obc_south ) THEN
450	CALL iom_open ( cl_obc_sTS , id_s )
451	idvar = iom_varid( id_s, cl_vname, kdimsz = itmp ) ; itobcs=itmp(1)
452	ENDIF
453
454	itobc = MAX( itobce, itobcw, itobcn, itobcs )
455	istop = 0
456	IF ( lp_obc_east .AND. itobce /= itobc ) istop = istop+1
457	IF ( lp_obc_west .AND. itobcw /= itobc ) istop = istop+1
458	IF ( lp_obc_north .AND. itobcn /= itobc ) istop = istop+1
459	IF ( lp_obc_south .AND. itobcs /= itobc ) istop = istop+1
460	nstop = nstop + istop
461
462	IF ( istop /= 0 ) THEN
463	WRITE(ctmp1,*) ' east, west, north, south: ', itobce, itobcw, itobcn, itobcs
464	CALL ctl_stop( 'obcdta : all files must have the same number of time steps', ctmp1 )
465	ENDIF
466
467	IF ( itobc == 1 ) THEN
468	IF (lwp) THEN
469	WRITE(numout,*) ' obcdta found one time step only in the OBC files'
470	IF (ln_obc_clim) THEN
471	! OK no problem
472	ELSE
473	ln_obc_clim=.true.
474	WRITE(numout,*) ' we force ln_obc_clim to T'
475	ENDIF
476	ENDIF
477	ELSE
478	IF ( ALLOCATED(ztcobc) ) DEALLOCATE ( ztcobc )
479	ALLOCATE (ztcobc(itobc))
480	DO ji=1,1 ! use a dummy loop to read ztcobc only once
481	IF ( lp_obc_east ) THEN
482	CALL iom_gettime ( id_e, ztcobc, cl_vname ) ; CALL iom_close (id_e) ; EXIT
483	ENDIF
484	IF ( lp_obc_west ) THEN
485	CALL iom_gettime ( id_w, ztcobc, cl_vname ) ; CALL iom_close (id_w) ; EXIT
486	ENDIF
487	IF ( lp_obc_north ) THEN
488	CALL iom_gettime ( id_n, ztcobc, cl_vname ) ; CALL iom_close (id_n) ; EXIT
489	ENDIF
490	IF ( lp_obc_south ) THEN
491	CALL iom_gettime ( id_s, ztcobc, cl_vname ) ; CALL iom_close (id_s) ; EXIT
492	ENDIF
493	END DO
494	rdt_obc = ztcobc(2)-ztcobc(1) ! just an information, not used for any computation
495	IF (lwp) WRITE(numout,*) ' obcdta found', itobc,' time steps in the OBC files'
496	IF (lwp) WRITE(numout,*) ' time step of obc data :', rdt_obc,' days'
497	ENDIF
498	zjcnes = zjcnes - rdt/rday ! trick : zcnes is always incremented by rdt/rday in obc_dta!
499	END SUBROUTINE obc_dta_chktime
500
501
502	#if defined key_dynspg_ts \|\| defined key_dynspg_exp
503	SUBROUTINE obc_dta_bt( kt, kbt )
504	!!---------------------------------------------------------------------------
505	!! * SUBROUTINE obc_dta *
506	!!
507	!! ** Purpose : time interpolation of barotropic data for time-splitting scheme
508	!! Data at the boundary must be in m2/s
509	!!
510	!! History :
511	!! 9.0 ! 05-11 (V. garnier) Original code
512	!!---------------------------------------------------------------------------
513	!! * Arguments
514	INTEGER, INTENT( in ) :: kt ! ocean time-step index
515	INTEGER, INTENT( in ) :: kbt ! barotropic ocean time-step index
516
517	!! * Local declarations
518	INTEGER :: ji, jj, jk, ii, ij ! dummy loop indices
519	INTEGER :: id_e, id_w, id_n, id_s, fid ! file identifiers
520	INTEGER :: itimo, iman, imois, i15
521	INTEGER :: itobcm, itobcp, itimom, itimop
522	REAL(wp) :: zxy
523	INTEGER :: isrel, ikt ! number of seconds since 1/1/1992
524	INTEGER :: iprint ! frequency for printouts.
525
526	!!---------------------------------------------------------------------------
527
528	! 1. First call: check time frames available in files.
529	! -------------------------------------------------------
530
531	IF( kt == nit000 ) THEN
532
533	! 1.1 Barotropic tangential velocities set to zero
534	! -------------------------------------------------
535	IF( lp_obc_east ) vbtfoe(:) = 0.e0
536	IF( lp_obc_west ) vbtfow(:) = 0.e0
537	IF( lp_obc_south ) ubtfos(:) = 0.e0
538	IF( lp_obc_north ) ubtfon(:) = 0.e0
539
540	! 1.2 Sea surface height and normal barotropic velocities set to zero
541	! or initial conditions if nobc_dta == 0
542	! --------------------------------------------------------------------
543
544	IF( lp_obc_east ) THEN
545	! initialisation to zero
546	sshedta(:,:) = 0.e0
547	ubtedta(:,:) = 0.e0
548	! ! ================== !
549	IF( nobc_dta == 0 ) THEN ! initial state used !
550	! ! ================== !
551	! Fills sedta, tedta, uedta (global arrays)
552	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
553	DO ji = nie0, nie1
554	DO jj = nje0p1, nje1m1
555	ij = jj -1 + njmpp
556	sshedta(ij,1) = sshn(ji+1,jj) * tmask(ji+1,jj,1)
557	END DO
558	END DO
559	ENDIF
560	ENDIF
561
562	IF( lp_obc_west) THEN
563	! initialisation to zero
564	sshwdta(:,:) = 0.e0
565	ubtwdta(:,:) = 0.e0
566	! ! ================== !
567	IF( nobc_dta == 0 ) THEN ! initial state used !
568	! ! ================== !
569	! Fills swdta, twdta, uwdta (global arrays)
570	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
571	DO ji = niw0, niw1
572	DO jj = njw0p1, njw1m1
573	ij = jj -1 + njmpp
574	sshwdta(ij,1) = sshn(ji,jj) * tmask(ji,jj,1)
575	END DO
576	END DO
577	ENDIF
578	ENDIF
579
580	IF( lp_obc_north) THEN
581	! initialisation to zero
582	sshndta(:,:) = 0.e0
583	vbtndta(:,:) = 0.e0
584	! ! ================== !
585	IF( nobc_dta == 0 ) THEN ! initial state used !
586	! ! ================== !
587	! Fills sndta, tndta, vndta (global arrays)
588	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
589	DO jj = njn0, njn1
590	DO ji = nin0p1, nin1m1
591	DO jk = 1, jpkm1
592	ii = ji -1 + nimpp
593	vbtndta(ii,1) = vbtndta(ii,1) + vndta(ii,jk,1)*fse3v(ji,jj,jk)
594	END DO
595	sshndta(ii,1) = sshn(ii,jj+1) * tmask(ji,jj+1,1)
596	END DO
597	END DO
598	ENDIF
599	ENDIF
600
601	IF( lp_obc_south) THEN
602	! initialisation to zero
603	ssdta(:,:,:) = 0.e0
604	tsdta(:,:,:) = 0.e0
605	vsdta(:,:,:) = 0.e0
606	sshsdta(:,:) = 0.e0
607	vbtsdta(:,:) = 0.e0
608	! ! ================== !
609	IF( nobc_dta == 0 ) THEN ! initial state used !
610	! ! ================== !
611	! Fills ssdta, tsdta, vsdta (global arrays)
612	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
613	DO jj = njs0, njs1
614	DO ji = nis0p1, nis1m1
615	DO jk = 1, jpkm1
616	ii = ji -1 + nimpp
617	vbtsdta(ii,1) = vbtsdta(ii,1) + vsdta(ii,jk,1)*fse3v(ji,jj,jk)
618	END DO
619	sshsdta(ii,1) = sshn(ji,jj) * tmask(ii,jj,1)
620	END DO
621	END DO
622	ENDIF
623	ENDIF
624
625	ENDIF ! END IF kt == nit000
626
627	!!------------------------------------------------------------------------------------
628	! 2. Initialize the time we are at. Does this every time the routine is called,
629	! excepted when nobc_dta = 0
630	!
631	IF( nobc_dta == 0) THEN
632	itimo = 1
633	zxy = 0
634	ELSE
635	IF(ntobc == 1) THEN
636	itimo = 1
637	ELSE IF (ntobc == 12) THEN ! BC are monthly
638	! we assume we have climatology in that case
639	iman = 12
640	i15 = nday / 16
641	imois = nmonth + i15 - 1
642	IF( imois == 0 ) imois = iman
643	itimo = imois
644	ELSE
645	IF(lwp) WRITE(numout,*) 'data other than constant or monthly',kt
646	iman = ntobc
647	itimo = FLOOR( kt*rdt / tcobc(1))
648	isrel=kt*rdt
649	ENDIF
650	ENDIF
651
652	! 2. Read two records in the file if necessary
653	! ---------------------------------------------
654
655	IF( nobc_dta == 1 .AND. nlecto == 1 ) THEN
656
657	IF( lp_obc_east ) THEN
658	! ... Read datafile and set sea surface height and barotropic velocity
659	! ... initialise the sshedta, ubtedta arrays
660	sshedta(:,0) = sshedta(:,1)
661	ubtedta(:,0) = ubtedta(:,1)
662	CALL iom_open ( 'obceast_TS.nc', id_e )
663	CALL iom_get ( id_e, jpdom_unknown, 'vossurfh', sshedta(:,1), ktime=ntobc1 )
664	CALL iom_get ( id_e, jpdom_unknown, 'vossurfh', sshedta(:,2), ktime=ntobc2 )
665	IF( lk_dynspg_ts ) THEN
666	CALL iom_get (id_e, jpdom_unknown, 'vossurfh', sshedta(:,3), ktime=ntobc2+1 )
667	ENDIF
668	CALL iom_close ( id_e )
669	!
670	CALL iom_open ( 'obceast_U.nc', id_e )
671	CALL iom_get ( id_e, jpdom_unknown, 'vozoubt', ubtedta(:,1), ktime=ntobc1 )
672	CALL iom_get ( id_e, jpdom_unknown, 'vozoubt', ubtedta(:,2), ktime=ntobc2 )
673	IF( lk_dynspg_ts ) THEN
674	CALL iom_get ( id_e, jpdom_unknown, 'vozoubt', ubtedta(:,3), ktime=ntobc2+1 )
675	ENDIF
676	CALL iom_close ( id_e )
677	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
678	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
679	WRITE(numout,*)
680	WRITE(numout,*) ' Read East OBC barotropic data records ', ntobc1, ntobc2
681	iprint = (jpjef-jpjed+1)/20 +1
682	WRITE(numout,*)
683	WRITE(numout,*) ' Sea surface height record 1'
684	CALL prihre( sshedta(:,1), jpjef-jpjed+1, 1, 1, jpjef-jpjed+1, iprint, 1, 1, -3, 1., numout )
685	WRITE(numout,*)
686	WRITE(numout,*) ' Normal transport (m2/s) record 1',iprint
687	CALL prihre( ubtedta(:,1), jpjef-jpjed+1, 1, 1, jpjef-jpjed+1, iprint, 1, 1, -3, 1., numout )
688	ENDIF
689	ENDIF
690
691	IF( lp_obc_west ) THEN
692	! ... Read datafile and set temperature, salinity and normal velocity
693	! ... initialise the swdta, twdta, uwdta arrays
694	sshwdta(:,0) = sshwdta(:,1)
695	ubtwdta(:,0) = ubtwdta(:,1)
696	CALL iom_open ( 'obcwest_TS.nc', id_w )
697	CALL iom_get ( id_w, jpdom_unknown, 'vossurfh', sshwdta(:,1), ktime=ntobc1 )
698	CALL iom_get ( id_w, jpdom_unknown, 'vossurfh', sshwdta(:,2), ktime=ntobc2 )
699	IF( lk_dynspg_ts ) THEN
700	CALL ( id_w, jpdom_unknown, 'vossurfh', sshwdta(:,3), ktime=ntobc2+1 )
701	ENDIF
702	CALL iom_close ( id_w )
703	!
704	CALL iom_open ( 'obcwest_U.nc', id_w )
705	CALL iom_get ( id_w, jpdom_unknown, 'vozoubt', ubtwdta(:,1), ktime=ntobc1 )
706	CALL iom_get ( id_w, jpdom_unknown, 'vozoubt', ubtwdta(:,2), ktime=ntobc2 )
707	IF( lk_dynspg_ts ) THEN
708	CALL iom_get ( id_w, jpdom_unknown, 'vozoubt', ubtwdta(:,3), ktime=ntobc2+1 )
709	ENDIF
710	CALL iom_close ( id_w )
711	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
712	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
713	WRITE(numout,*)
714	WRITE(numout,*) ' Read West OBC barotropic data records ', ntobc1, ntobc2
715	iprint = (jpjwf-jpjwd+1)/20 +1
716	WRITE(numout,*)
717	WRITE(numout,*) ' Sea surface height record 1 - printout surface level'
718	CALL prihre( sshwdta(:,1), jpjwf-jpjwd+1, 1, 1, jpjwf-jpjwd+1, iprint, 1, 1, -3, 1., numout )
719	WRITE(numout,*)
720	WRITE(numout,*) ' Normal transport (m2/s) record 1'
721	CALL prihre( ubtwdta(:,1), jpjwf-jpjwd+1, 1, 1, jpjwf-jpjwd+1, iprint, 1, 1, -3, 1., numout )
722	ENDIF
723	ENDIF
724
725	IF( lp_obc_north) THEN
726	! ... Read datafile and set sea surface height and barotropic velocity
727	! ... initialise the sshndta, ubtndta arrays
728	sshndta(:,0) = sshndta(:,1)
729	vbtndta(:,0) = vbtndta(:,1)
730	CALL iom_open ( 'obcnorth_TS.nc', id_n )
731	CALL iom_get (id_n, jpdom_unknown, 'vossurfh', sshndta(:,1), ktime=ntobc1 )
732	CALL iom_get (id_n, jpdom_unknown, 'vossurfh', sshndta(:,2), ktime=ntobc2 )
733	IF( lk_dynspg_ts ) THEN
734	CALL iom_get (id_n, jpdom_unknown, 'vossurfh', sshndta(:,3), ktime=ntobc2+1 )
735	ENDIF
736	CALL iom_close ( id_n )
737
738	CALL iom_open ( 'obcnorth_V.nc', id_n )
739	CALL iom_get (id_n, jpdom_unknown, 'vomevbt', vbtndta(:,1), ktime=ntobc1 )
740	CALL iom_get (id_n, jpdom_unknown, 'vomevbt', vbtndta(:,2), ktime=ntobc2 )
741	IF( lk_dynspg_ts ) THEN
742	CALL iom_get (id_n, jpdom_unknown, 'vomevbt', vbtndta(:,3), ktime=ntobc2+1 )
743	ENDIF
744	CALL iom_close ( id_n )
745
746	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
747	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
748	WRITE(numout,*)
749	WRITE(numout,*) ' Read North OBC barotropic data records ', ntobc1, ntobc2
750	iprint = (jpinf-jpind+1)/20 +1
751	WRITE(numout,*)
752	WRITE(numout,*) ' Sea surface height record 1 - printout surface level'
753	CALL prihre( sshndta(:,1), jpinf-jpind+1, 1, 1, jpinf-jpind+1, iprint, 1, 1, -3, 1., numout )
754	WRITE(numout,*)
755	WRITE(numout,*) ' Normal transport (m2/s) record 1'
756	CALL prihre( vbtndta(:,1), jpinf-jpind+1, 1, 1, jpinf-jpind+1, iprint, 1, 1, -3, 1., numout )
757	ENDIF
758	ENDIF
759
760	IF( lp_obc_south) THEN
761	! ... Read datafile and set sea surface height and barotropic velocity
762	! ... initialise the sshsdta, ubtsdta arrays
763	sshsdta(:,0) = sshsdta(:,1)
764	vbtsdta(:,0) = vbtsdta(:,1)
765	CALL iom_open ( 'obcsouth_TS.nc', id_s )
766	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(:,1), ktime=ntobc1 )
767	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(:,2), ktime=ntobc2 )
768	IF( lk_dynspg_ts ) THEN
769	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(:,3), ktime=ntobc2+1 )
770	ENDIF
771	CALL iom_close ( id_s )
772
773	CALL iom_open ( 'obcsouth_V.nc', id_s )
774	CALL iom_get ( id_s, jpdom_unknown, 'vomevbt', vbtsdta(:,1), ktime=ntobc1 )
775	CALL iom_get ( id_s, jpdom_unknown, 'vomevbt', vbtsdta(:,2), ktime=ntobc2 )
776	IF( lk_dynspg_ts ) THEN
777	CALL iom_get ( id_s, jpdom_unknown, 'vomevbt', vbtsdta(:,3), ktime=ntobc2+1 )
778	ENDIF
779	CALL iom_close ( id_s )
780
781	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
782	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
783	WRITE(numout,*)
784	WRITE(numout,*) ' Read South OBC barotropic data records ', ntobc1, ntobc2
785	iprint = (jpisf-jpisd+1)/20 +1
786	WRITE(numout,*)
787	WRITE(numout,*) ' Sea surface height record 1 - printout surface level'
788	CALL prihre( sshsdta(:,1), jpisf-jpisd+1, 1, 1, jpisf-jpisd+1, iprint, 1, 1, -3, 1., numout )
789	WRITE(numout,*)
790	WRITE(numout,*) ' Normal transport (m2/s) record 1'
791	CALL prihre( vbtsdta(:,1), jpisf-jpisd+1, 1, 1, jpisf-jpisd+1, iprint, 1, 1, -3, 1., numout )
792	ENDIF
793	ENDIF
794
795	ENDIF ! end of the test on the condition to read or not the files
796
797	! 3. Call at every time step : Linear interpolation of BCs to current time step
798	! ----------------------------------------------------------------------
799
800	IF( lk_dynspg_ts ) THEN
801	isrel = (kt-1)rdt + kbt(rdt/REAL(nn_baro,wp))
802
803	IF( nobc_dta == 1 ) THEN
804	isrel = (kt-1)rdt + kbt(rdt/REAL(nn_baro,wp))
805	itimo = FLOOR( kt*rdt / (tcobc(2)-tcobc(1)) )
806	itimom = FLOOR( (kt-1)*rdt / (tcobc(2)-tcobc(1)) )
807	itimop = FLOOR( (kt+1)*rdt / (tcobc(2)-tcobc(1)) )
808	IF( itimom == itimo .AND. itimop == itimo ) THEN
809	itobcm = ntobc1
810	itobcp = ntobc2
811
812	ELSEIF ( itimom <= itimo .AND. itimop == itimo ) THEN
813	IF( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimo ) THEN
814	itobcm = ntobc1-1
815	itobcp = ntobc2-1
816	ELSE
817	itobcm = ntobc1
818	itobcp = ntobc2
819	ENDIF
820
821	ELSEIF ( itimom == itimo .AND. itimop >= itimo ) THEN
822	IF( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimop ) THEN
823	itobcm = ntobc1
824	itobcp = ntobc2
825	ELSE
826	itobcm = ntobc1+1
827	itobcp = ntobc2+1
828	ENDIF
829
830	ELSEIF ( itimom == itimo-1 .AND. itimop == itimo+1 ) THEN
831	IF( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimo ) THEN
832	itobcm = ntobc1-1
833	itobcp = ntobc2-1
834	ELSEIF ( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimop ) THEN
835	itobcm = ntobc1
836	itobcp = ntobc2
837	ELSEIF ( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) == itimop ) THEN
838	itobcm = ntobc1+1
839	itobcp = ntobc2+2
840	ELSE
841	IF(lwp) WRITE(numout, *) 'obc_dta_bt: You should not have seen this print! error 1?'
842	ENDIF
843	ELSE
844	IF(lwp) WRITE(numout, *) 'obc_dta_bt: You should not have seen this print! error 2?'
845	ENDIF
846
847	ENDIF
848
849	ELSE IF( lk_dynspg_exp ) THEN
850	isrel=kt*rdt
851	itobcm = ntobc1
852	itobcp = ntobc2
853	ENDIF
854
855	IF( ntobc == 1 .OR. nobc_dta == 0 ) THEN
856	zxy = 0.e0
857	ELSE IF( ntobc == 12 ) THEN
858	zxy = FLOAT( nday + 15 - 30 * i15 ) / 30.
859	ELSE
860	zxy = (tcobc(itobcm)-FLOAT(isrel)) / (tcobc(itobcm)-tcobc(itobcp))
861	ENDIF
862
863	IF( lp_obc_east ) THEN ! fills sshfoe, ubtfoe (local to each processor)
864	DO jj = nje0p1, nje1m1
865	ij = jj -1 + njmpp
866	sshfoe(jj) = ( zxy * sshedta(ij,2) + (1.-zxy) * sshedta(ij,1) ) * temsk(jj,1)
867	ubtfoe(jj) = ( zxy * ubtedta(ij,2) + (1.-zxy) * ubtedta(ij,1) ) * uemsk(jj,1)
868	END DO
869	ENDIF
870
871	IF( lp_obc_west) THEN ! fills sshfow, ubtfow (local to each processor)
872	DO jj = njw0p1, njw1m1
873	ij = jj -1 + njmpp
874	sshfow(jj) = ( zxy * sshwdta(ij,2) + (1.-zxy) * sshwdta(ij,1) ) * twmsk(jj,1)
875	ubtfow(jj) = ( zxy * ubtwdta(ij,2) + (1.-zxy) * ubtwdta(ij,1) ) * uwmsk(jj,1)
876	END DO
877	ENDIF
878
879	IF( lp_obc_north) THEN ! fills sshfon, vbtfon (local to each processor)
880	DO ji = nin0p1, nin1m1
881	ii = ji -1 + nimpp
882	sshfon(ji) = ( zxy * sshndta(ii,2) + (1.-zxy) * sshndta(ii,1) ) * tnmsk(ji,1)
883	vbtfon(ji) = ( zxy * vbtndta(ii,2) + (1.-zxy) * vbtndta(ii,1) ) * vnmsk(ji,1)
884	END DO
885	ENDIF
886
887	IF( lp_obc_south) THEN ! fills sshfos, vbtfos (local to each processor)
888	DO ji = nis0p1, nis1m1
889	ii = ji -1 + nimpp
890	sshfos(ji) = ( zxy * sshsdta(ii,2) + (1.-zxy) * sshsdta(ii,1) ) * tsmsk(ji,1)
891	vbtfos(ji) = ( zxy * vbtsdta(ii,2) + (1.-zxy) * vbtsdta(ii,1) ) * vsmsk(ji,1)
892	END DO
893	ENDIF
894
895	END SUBROUTINE obc_dta_bt
896
897	#else
898	!!-----------------------------------------------------------------------------
899	!! Default option
900	!!-----------------------------------------------------------------------------
901	SUBROUTINE obc_dta_bt ( kt, kbt ) ! Empty routine
902	!! * Arguments
903	INTEGER,INTENT(in) :: kt
904	INTEGER, INTENT( in ) :: kbt ! barotropic ocean time-step index
905	WRITE(,) 'obc_dta_bt: You should not have seen this print! error?', kt
906	WRITE(,) 'obc_dta_bt: You should not have seen this print! error?', kbt
907	END SUBROUTINE obc_dta_bt
908	#endif
909
910
911	!!==============================================================================
912	SUBROUTINE obc_read (kt, nt_x, ntobc_x, iyy, imm)
913	!!-------------------------------------------------------------------------
914	!! * ROUTINE obc_read *
915	!!
916	!! ** Purpose : Read the boundary data in files identified by iyy and imm
917	!! According to the validated open boundaries, return the
918	!! following arrays :
919	!! sedta, tedta : East OBC salinity and temperature
920	!! uedta, vedta : " " u and v velocity component
921	!!
922	!! swdta, twdta : West OBC salinity and temperature
923	!! uwdta, vwdta : " " u and v velocity component
924	!!
925	!! sndta, tndta : North OBC salinity and temperature
926	!! undta, vndta : " " u and v velocity component
927	!!
928	!! ssdta, tsdta : South OBC salinity and temperature
929	!! usdta, vsdta : " " u and v velocity component
930	!!
931	!! ** Method : These fields are read in the record ntobc_x of the files.
932	!! The number of records is already known. If ntobc_x is greater
933	!! than the number of record, this routine will look for next file,
934	!! updating the indices (case of inter-annual obcs) or loop at the
935	!! begining in case of climatological file (ln_obc_clim = true ).
936	!! -------------------------------------------------------------------------
937	!! History: ! 2005 ( P. Mathiot, C. Langlais ) Original code
938	!! ! 2008 ( J,M, Molines ) Use IOM and cleaning
939	!!--------------------------------------------------------------------------
940
941	! * Arguments
942	INTEGER, INTENT( in ) :: kt, nt_x
943	INTEGER, INTENT( inout ) :: ntobc_x , iyy, imm ! yes ! inout !
944
945	! * Local variables
946	CHARACTER (len=40) :: & ! file names
947	cl_obc_eTS , cl_obc_eU, cl_obc_eV,&
948	cl_obc_wTS , cl_obc_wU, cl_obc_wV,&
949	cl_obc_nTS , cl_obc_nU, cl_obc_nV,&
950	cl_obc_sTS , cl_obc_sU, cl_obc_sV
951
952	INTEGER :: ikprint
953	REAL(wp) :: zmin, zmax ! control of boundary values
954
955	!IOM stuff
956	INTEGER :: id_e, id_w, id_n, id_s, ji, jj
957	INTEGER, DIMENSION(2) :: istart, icount
958
959	!--------------------------------------------------------------------------
960	IF ( ntobc_x > itobc ) THEN
961	IF (ln_obc_clim) THEN ! just loop on the same file
962	ntobc_x = 1
963	ELSE
964	! need to change file : it is always for an 'after' data
965	IF ( cffile == 'annual' ) THEN ! go to next year file
966	iyy = iyy + 1
967	ELSE IF ( cffile =='monthly' ) THEN ! go to next month file
968	imm = imm + 1
969	IF ( imm == 13 ) THEN
970	imm = 1 ; iyy = iyy + 1
971	ENDIF
972	ELSE
973	ctmp1='obcread : this type of obc file is not supported :( '
974	ctmp2=TRIM(cffile)
975	CALL ctl_stop (ctmp1, ctmp2)
976	! cffile should be either annual or monthly ...
977	ENDIF
978	! as the file is changed, need to update itobc etc ...
979	CALL obc_dta_chktime (iyy,imm)
980	ntobc_x = nrecbef() + 1 ! remember : this case occur for an after data
981	ENDIF
982	ENDIF
983
984	IF ( lp_obc_east ) THEN
985	! ... Read datafile and set temperature, salinity and normal velocity
986	! ... initialise the sedta, tedta, uedta arrays
987	WRITE(cl_obc_eTS ,'("obc_east_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
988	WRITE(cl_obc_eU ,'("obc_east_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
989	WRITE(cl_obc_eV ,'("obc_east_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
990	! JMM this may change depending on the obc data format ...
991	istart(:)=(/nje0+njmpp-1,1/) ; icount(:)=(/nje1-nje0 +1,jpk/)
992	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_eTS)
993	IF (nje1 >= nje0 ) THEN
994	CALL iom_open ( cl_obc_eTS , id_e )
995	CALL iom_get ( id_e, jpdom_unknown, 'votemper', tedta(nje0:nje1,:,nt_x), &
996	& ktime=ntobc_x , kstart=istart, kcount= icount )
997	CALL iom_get ( id_e, jpdom_unknown, 'vosaline', sedta(nje0:nje1,:,nt_x), &
998	& ktime=ntobc_x , kstart=istart, kcount= icount )
999	CALL iom_close (id_e)
1000	!
1001	CALL iom_open ( cl_obc_eU , id_e )
1002	CALL iom_get ( id_e, jpdom_unknown, 'vozocrtx', uedta(nje0:nje1,:,nt_x), &
1003	& ktime=ntobc_x , kstart=istart, kcount= icount )
1004	CALL iom_close ( id_e )
1005	!
1006	CALL iom_open ( cl_obc_eV , id_e )
1007	CALL iom_get ( id_e, jpdom_unknown, 'vomecrty', vedta(nje0:nje1,:,nt_x), &
1008	& ktime=ntobc_x , kstart=istart, kcount= icount )
1009	CALL iom_close ( id_e )
1010
1011	! mask the boundary values
1012	tedta(:,:,nt_x) = tedta(:,:,nt_x)temsk(:,:) ; sedta(:,:,nt_x) = sedta(:,:,nt_x)temsk(:,:)
1013	uedta(:,:,nt_x) = uedta(:,:,nt_x)uemsk(:,:) ; vedta(:,:,nt_x) = vedta(:,:,nt_x)vemsk(:,:)
1014
1015	! check any outliers
1016	zmin=MINVAL( sedta(:,:,nt_x), mask=ltemsk ) ; zmax=MAXVAL(sedta(:,:,nt_x), mask=ltemsk)
1017	IF ( zmin < 5 .OR. zmax > 50) THEN
1018	CALL ctl_stop('Error in sedta',' routine obcdta')
1019	ENDIF
1020	zmin=MINVAL( tedta(:,:,nt_x), mask=ltemsk ) ; zmax=MAXVAL(tedta(:,:,nt_x), mask=ltemsk)
1021	IF ( zmin < -10. .OR. zmax > 40) THEN
1022	CALL ctl_stop('Error in tedta',' routine obcdta')
1023	ENDIF
1024	zmin=MINVAL( uedta(:,:,nt_x), mask=luemsk ) ; zmax=MAXVAL(uedta(:,:,nt_x), mask=luemsk)
1025	IF ( zmin < -5. .OR. zmax > 5.) THEN
1026	CALL ctl_stop('Error in uedta',' routine obcdta')
1027	ENDIF
1028	zmin=MINVAL( vedta(:,:,nt_x), mask=lvemsk ) ; zmax=MAXVAL(vedta(:,:,nt_x), mask=lvemsk)
1029	IF ( zmin < -5. .OR. zmax > 5.) THEN
1030	CALL ctl_stop('Error in vedta',' routine obcdta')
1031	ENDIF
1032
1033	! Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
1034	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1035	WRITE(numout,*)
1036	WRITE(numout,*) ' Read East OBC data records ', ntobc_x
1037	ikprint = jpj/20 +1
1038	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1039	CALL prihre( tedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1040	WRITE(numout,*)
1041	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1042	CALL prihre( sedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1043	WRITE(numout,*)
1044	WRITE(numout,*) ' Normal velocity U record 1 - printout every 3 level'
1045	CALL prihre( uedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1046	WRITE(numout,*)
1047	WRITE(numout,*) ' Tangential velocity V record 1 - printout every 3 level'
1048	CALL prihre( vedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1049	ENDIF
1050	ENDIF
1051	ENDIF
1052	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1053	IF ( lp_obc_west ) THEN
1054	! ... Read datafile and set temperature, salinity and normal velocity
1055	! ... initialise the swdta, twdta, uwdta arrays
1056	WRITE(cl_obc_wTS ,'("obc_west_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1057	WRITE(cl_obc_wU ,'("obc_west_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1058	WRITE(cl_obc_wV ,'("obc_west_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1059	istart(:)=(/njw0+njmpp-1,1/) ; icount(:)=(/njw1-njw0 +1,jpk/)
1060	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_wTS)
1061
1062	IF ( njw1 >= njw0 ) THEN
1063	CALL iom_open ( cl_obc_wTS , id_w )
1064	CALL iom_get ( id_w, jpdom_unknown, 'votemper', twdta(njw0:njw1,:,nt_x), &
1065	& ktime=ntobc_x , kstart=istart, kcount= icount )
1066
1067	CALL iom_get ( id_w, jpdom_unknown, 'vosaline', swdta(njw0:njw1,:,nt_x), &
1068	& ktime=ntobc_x , kstart=istart, kcount= icount)
1069	CALL iom_close (id_w)
1070	!
1071	CALL iom_open ( cl_obc_wU , id_w )
1072	CALL iom_get ( id_w, jpdom_unknown, 'vozocrtx', uwdta(njw0:njw1,:,nt_x),&
1073	& ktime=ntobc_x , kstart=istart, kcount= icount )
1074	CALL iom_close ( id_w )
1075	!
1076	CALL iom_open ( cl_obc_wV , id_w )
1077	CALL iom_get ( id_w, jpdom_unknown, 'vomecrty', vwdta(njw0:njw1,:,nt_x), &
1078	& ktime=ntobc_x , kstart=istart, kcount= icount )
1079	CALL iom_close ( id_w )
1080
1081	! mask the boundary values
1082	twdta(:,:,nt_x) = twdta(:,:,nt_x)twmsk(:,:) ; swdta(:,:,nt_x) = swdta(:,:,nt_x)twmsk(:,:)
1083	uwdta(:,:,nt_x) = uwdta(:,:,nt_x)uwmsk(:,:) ; vwdta(:,:,nt_x) = vwdta(:,:,nt_x)vwmsk(:,:)
1084
1085	! check any outliers
1086	zmin=MINVAL( swdta(:,:,nt_x), mask=ltwmsk ) ; zmax=MAXVAL(swdta(:,:,nt_x), mask=ltwmsk)
1087	IF ( zmin < 5 .OR. zmax > 50) THEN
1088	CALL ctl_stop('Error in swdta',' routine obcdta')
1089	ENDIF
1090	zmin=MINVAL( twdta(:,:,nt_x), mask=ltwmsk ) ; zmax=MAXVAL(twdta(:,:,nt_x), mask=ltwmsk)
1091	IF ( zmin < -10. .OR. zmax > 40) THEN
1092	CALL ctl_stop('Error in twdta',' routine obcdta')
1093	ENDIF
1094	zmin=MINVAL( uwdta(:,:,nt_x), mask=luwmsk ) ; zmax=MAXVAL(uwdta(:,:,nt_x), mask=luwmsk)
1095	IF ( zmin < -5. .OR. zmax > 5.) THEN
1096	CALL ctl_stop('Error in uwdta',' routine obcdta')
1097	ENDIF
1098	zmin=MINVAL( vwdta(:,:,nt_x), mask=lvwmsk ) ; zmax=MAXVAL(vwdta(:,:,nt_x), mask=lvwmsk)
1099	IF ( zmin < -5. .OR. zmax > 5.) THEN
1100	CALL ctl_stop('Error in vwdta',' routine obcdta')
1101	ENDIF
1102
1103
1104	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1105	WRITE(numout,*)
1106	WRITE(numout,*) ' Read West OBC data records ', ntobc_x
1107	ikprint = jpj/20 +1
1108	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1109	CALL prihre( twdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1110	WRITE(numout,*)
1111	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1112	CALL prihre( swdta(:,:,nt_x),jpj,jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1113	WRITE(numout,*)
1114	WRITE(numout,*) ' Normal velocity U record 1 - printout every 3 level'
1115	CALL prihre( uwdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1116	WRITE(numout,*)
1117	WRITE(numout,*) ' Tangential velocity V record 1 - printout every 3 level'
1118	CALL prihre( vwdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1119	ENDIF
1120	END IF
1121	ENDIF
1122	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1123	IF( lp_obc_north) THEN
1124	WRITE(cl_obc_nTS ,'("obc_north_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1125	WRITE(cl_obc_nV ,'("obc_north_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1126	WRITE(cl_obc_nU ,'("obc_north_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1127	istart(:)=(/nin0+nimpp-1,1/) ; icount(:)=(/nin1-nin0 +1,jpk/)
1128	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_nTS)
1129	IF ( nin1 >= nin0 ) THEN
1130	CALL iom_open ( cl_obc_nTS , id_n )
1131	CALL iom_get ( id_n, jpdom_unknown, 'votemper', tndta(nin0:nin1,:,nt_x), &
1132	& ktime=ntobc_x , kstart=istart, kcount= icount )
1133	CALL iom_get ( id_n, jpdom_unknown, 'vosaline', sndta(nin0:nin1,:,nt_x), &
1134	& ktime=ntobc_x , kstart=istart, kcount= icount )
1135	CALL iom_close (id_n)
1136	!
1137	CALL iom_open ( cl_obc_nU , id_n )
1138	CALL iom_get ( id_n, jpdom_unknown, 'vozocrtx', undta(nin0:nin1,:,nt_x), &
1139	& ktime=ntobc_x , kstart=istart, kcount= icount )
1140	CALL iom_close ( id_n )
1141	!
1142	CALL iom_open ( cl_obc_nV , id_n )
1143	CALL iom_get ( id_n, jpdom_unknown, 'vomecrty', vndta(nin0:nin1,:,nt_x), &
1144	& ktime=ntobc_x , kstart=istart, kcount= icount )
1145	CALL iom_close ( id_n )
1146
1147	! mask the boundary values
1148	tndta(:,:,nt_x) = tndta(:,:,nt_x)tnmsk(:,:) ; sndta(:,:,nt_x) = sndta(:,:,nt_x)tnmsk(:,:)
1149	undta(:,:,nt_x) = undta(:,:,nt_x)unmsk(:,:) ; vndta(:,:,nt_x) = vndta(:,:,nt_x)vnmsk(:,:)
1150
1151	! check any outliers
1152	zmin=MINVAL( sndta(:,:,nt_x), mask=ltnmsk ) ; zmax=MAXVAL(sndta(:,:,nt_x), mask=ltnmsk)
1153	IF ( zmin < 5 .OR. zmax > 50) THEN
1154	CALL ctl_stop('Error in sndta',' routine obcdta')
1155	ENDIF
1156	zmin=MINVAL( tndta(:,:,nt_x), mask=ltnmsk ) ; zmax=MAXVAL(tndta(:,:,nt_x), mask=ltnmsk)
1157	IF ( zmin < -10. .OR. zmax > 40) THEN
1158	CALL ctl_stop('Error in tndta',' routine obcdta')
1159	ENDIF
1160	zmin=MINVAL( undta(:,:,nt_x), mask=lunmsk ) ; zmax=MAXVAL(undta(:,:,nt_x), mask=lunmsk)
1161	IF ( zmin < -5. .OR. zmax > 5.) THEN
1162	CALL ctl_stop('Error in undta',' routine obcdta')
1163	ENDIF
1164	zmin=MINVAL( vndta(:,:,nt_x), mask=lvnmsk ) ; zmax=MAXVAL(vndta(:,:,nt_x), mask=lvnmsk)
1165	IF ( zmin < -5. .OR. zmax > 5.) THEN
1166	CALL ctl_stop('Error in vndta',' routine obcdta')
1167	ENDIF
1168
1169	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1170	WRITE(numout,*)
1171	WRITE(numout,*) ' Read North OBC data records ', ntobc_x
1172	ikprint = jpi/20 +1
1173	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1174	CALL prihre( tndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1175	WRITE(numout,*)
1176	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1177	CALL prihre( sndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1178	WRITE(numout,*)
1179	WRITE(numout,*) ' Normal velocity V record 1 - printout every 3 level'
1180	CALL prihre( vndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1181	WRITE(numout,*)
1182	WRITE(numout,*) ' Tangential velocity U record 1 - printout every 3 level'
1183	CALL prihre( undta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1184	ENDIF
1185	ENDIF
1186	ENDIF
1187	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1188	IF( lp_obc_south) THEN
1189	WRITE(cl_obc_sTS ,'("obc_south_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1190	WRITE(cl_obc_sV ,'("obc_south_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1191	WRITE(cl_obc_sU ,'("obc_south_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1192	istart(:)=(/nis0+nimpp-1,1/) ; icount(:)=(/nis1-nis0 +1,jpk/)
1193	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_sTS)
1194	IF ( nis1 >= nis0 ) THEN
1195	CALL iom_open ( cl_obc_sTS , id_s )
1196	CALL iom_get ( id_s, jpdom_unknown, 'votemper', tsdta(nis0:nis1,:,nt_x), &
1197	& ktime=ntobc_x , kstart=istart, kcount= icount )
1198	CALL iom_get ( id_s, jpdom_unknown, 'vosaline', ssdta(nis0:nis1,:,nt_x), &
1199	& ktime=ntobc_x , kstart=istart, kcount= icount )
1200	CALL iom_close (id_s)
1201	!
1202	CALL iom_open ( cl_obc_sU , id_s )
1203	CALL iom_get ( id_s, jpdom_unknown, 'vozocrtx', usdta(nis0:nis1,:,nt_x), &
1204	& ktime=ntobc_x , kstart=istart, kcount= icount )
1205	CALL iom_close ( id_s )
1206	!
1207	CALL iom_open ( cl_obc_sV , id_s )
1208	CALL iom_get ( id_s, jpdom_unknown, 'vomecrty', vsdta(nis0:nis1,:,nt_x), &
1209	& ktime=ntobc_x , kstart=istart, kcount= icount )
1210	CALL iom_close ( id_s )
1211
1212	! mask the boundary values
1213	tsdta(:,:,nt_x) = tsdta(:,:,nt_x)tsmsk(:,:) ; ssdta(:,:,nt_x) = ssdta(:,:,nt_x)tsmsk(:,:)
1214	usdta(:,:,nt_x) = usdta(:,:,nt_x)usmsk(:,:) ; vsdta(:,:,nt_x) = vsdta(:,:,nt_x)vsmsk(:,:)
1215
1216	! check any outliers
1217	zmin=MINVAL( ssdta(:,:,nt_x), mask=ltsmsk ) ; zmax=MAXVAL(ssdta(:,:,nt_x), mask=ltsmsk)
1218	IF ( zmin < 5 .OR. zmax > 50) THEN
1219	CALL ctl_stop('Error in ssdta',' routine obcdta')
1220	ENDIF
1221	zmin=MINVAL( tsdta(:,:,nt_x), mask=ltsmsk ) ; zmax=MAXVAL(tsdta(:,:,nt_x), mask=ltsmsk)
1222	IF ( zmin < -10. .OR. zmax > 40) THEN
1223	CALL ctl_stop('Error in tsdta',' routine obcdta')
1224	ENDIF
1225	zmin=MINVAL( usdta(:,:,nt_x), mask=lusmsk ) ; zmax=MAXVAL(usdta(:,:,nt_x), mask=lusmsk)
1226	IF ( zmin < -5. .OR. zmax > 5.) THEN
1227	CALL ctl_stop('Error in usdta',' routine obcdta')
1228	ENDIF
1229	zmin=MINVAL( vsdta(:,:,nt_x), mask=lvsmsk ) ; zmax=MAXVAL(vsdta(:,:,nt_x), mask=lvsmsk)
1230	IF ( zmin < -5. .OR. zmax > 5.) THEN
1231	CALL ctl_stop('Error in vsdta',' routine obcdta')
1232	ENDIF
1233
1234	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1235	WRITE(numout,*)
1236	WRITE(numout,*) ' Read South OBC data records ', ntobc_x
1237	ikprint = jpi/20 +1
1238	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1239	CALL prihre( tsdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1240	WRITE(numout,*)
1241	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1242	CALL prihre( ssdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1243	WRITE(numout,*)
1244	WRITE(numout,*) ' Normal velocity V record 1 - printout every 3 level'
1245	CALL prihre( vsdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1246	WRITE(numout,*)
1247	WRITE(numout,*) ' Tangential velocity U record 1 - printout every 3 level'
1248	CALL prihre( usdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1249	ENDIF
1250	ENDIF
1251	ENDIF
1252	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1253	END SUBROUTINE obc_read
1254
1255	INTEGER FUNCTION nrecbef()
1256	!!-----------------------------------------------------------------------
1257	!! * FUNCTION nrecbef *
1258	!!
1259	!! Purpose : - provide the before record number in files, with respect to zjcnes
1260	!!
1261	!! History : 2008-04 : ( J.M. Molines ) Original code
1262	!!-----------------------------------------------------------------------
1263
1264	INTEGER :: it , idum
1265
1266	idum = itobc
1267	DO it =1, itobc
1268	IF ( ztcobc(it) > zjcnes ) THEN ; idum = it - 1 ; EXIT ; ENDIF
1269	ENDDO
1270	! idum can be 0 (climato, before first record)
1271	IF ( idum == 0 ) THEN
1272	IF ( ln_obc_clim ) THEN
1273	idum = itobc
1274	ELSE
1275	ctmp1='obc_dta: find ntobc == 0 for non climatological file '
1276	ctmp2='consider adding a first record in your data file '
1277	CALL ctl_stop(ctmp1, ctmp2)
1278	ENDIF
1279	ENDIF
1280	! idum can be itobc ( zjcnes > ztcobc (itobc) )
1281	! This is not a problem ...
1282	nrecbef = idum
1283
1284	END FUNCTION nrecbef
1285
1286	#else
1287	!!------------------------------------------------------------------------------
1288	!! default option: Dummy module NO Open Boundary Conditions
1289	!!------------------------------------------------------------------------------
1290	CONTAINS
1291	SUBROUTINE obc_dta( kt ) ! Dummy routine
1292	INTEGER, INTENT (in) :: kt
1293	WRITE(,) 'obc_dta: You should not have seen this print! error?', kt
1294	END SUBROUTINE obc_dta
1295	#endif
1296	END MODULE obcdta

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