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obcdta.F90 in trunk/NEMO/OPA_SRC/OBC – NEMO

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source: trunk/NEMO/OPA_SRC/OBC/obcdta.F90 @ 2031

Last change on this file since 2031 was 2031, checked in by rblod, 14 years ago
Fix issues with OBC and AGRIF, see ticket #688 and #692
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 57.8 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 in_out_manager ! I/O logical units
19	USE lib_mpp ! distributed memory computing
20	USE dynspg_oce
21	USE ioipsl ! now only for ymds2ju function
22	USE iom !
23
24	IMPLICIT NONE
25	PRIVATE
26
27	!! * Accessibility
28	PUBLIC obc_dta ! routines called by step.F90
29	PUBLIC obc_dta_bt ! routines called by dynspg_ts.F90
30
31	!! * Shared module variables
32	!$AGRIF_DO_NOT_TREAT
33	REAL(wp), DIMENSION(2) :: zjcnes_obc !
34	REAL(wp), DIMENSION(:), ALLOCATABLE :: ztcobc
35	!$AGRIF_END_DO_NOT_TREAT
36	REAL(wp) :: rdt_obc
37	REAL(wp) :: zjcnes
38	INTEGER :: imm0, iyy0, idd0, iyy, imm, idd
39	INTEGER :: nt_a=2, nt_b=1, itobc, ndate0_cnes, nday_year0
40	INTEGER :: itobce, itobcw, itobcs, itobcn, itobc_b ! number of time steps in OBC files
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), REAL(nyear_len(1),wp) ) ; IF ( znum < 0 ) znum = znum + REAL(nyear_len(1),wp)
174	zden= MOD(zjcnes_obc(nt_a) - zjcnes_obc(nt_b), REAL(nyear_len(1),wp) ) ; IF ( zden < 0 ) zden = zden + REAL(nyear_len(1),wp)
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
262	sedta(:,:,:) = 0.e0 ; tedta(:,:,:) = 0.e0 ; uedta(:,:,:) = 0.e0 ; vedta(:,:,:) = 0.e0 ! East
263	swdta(:,:,:) = 0.e0 ; twdta(:,:,:) = 0.e0 ; uwdta(:,:,:) = 0.e0 ; vwdta(:,:,:) = 0.e0 ! West
264	sndta(:,:,:) = 0.e0 ; tndta(:,:,:) = 0.e0 ; undta(:,:,:) = 0.e0 ; vndta(:,:,:) = 0.e0 ! North
265	ssdta(:,:,:) = 0.e0 ; tsdta(:,:,:) = 0.e0 ; usdta(:,:,:) = 0.e0 ; vsdta(:,:,:) = 0.e0 ! South
266
267	sfoe(:,:) = 0.e0 ; tfoe(:,:) = 0.e0 ; ufoe(:,:) = 0.e0 ; vfoe(:,:) = 0.e0 ! East
268	sfow(:,:) = 0.e0 ; tfow(:,:) = 0.e0 ; ufow(:,:) = 0.e0 ; vfow(:,:) = 0.e0 ! West
269	sfon(:,:) = 0.e0 ; tfon(:,:) = 0.e0 ; ufon(:,:) = 0.e0 ; vfon(:,:) = 0.e0 ! North
270	sfos(:,:) = 0.e0 ; tfos(:,:) = 0.e0 ; ufos(:,:) = 0.e0 ; vfos(:,:) = 0.e0 ! South
271
272	IF (nobc_dta == 0 ) THEN ! boundary data are the initial data of this run (set only at nit000)
273	IF (lp_obc_east) THEN ! East
274	DO ji = nie0 , nie1
275	sfoe(nje0p1:nje1m1,:) = temsk(nje0p1:nje1m1,:) * sn (ji+1 , nje0p1:nje1m1 , :)
276	tfoe(nje0p1:nje1m1,:) = temsk(nje0p1:nje1m1,:) * tn (ji+1 , nje0p1:nje1m1 , :)
277	ufoe(nje0p1:nje1m1,:) = uemsk(nje0p1:nje1m1,:) * un (ji , nje0p1:nje1m1 , :)
278	vfoe(nje0p1:nje1m1,:) = vemsk(nje0p1:nje1m1,:) * vn (ji+1 , nje0p1:nje1m1 , :)
279	END DO
280	ENDIF
281
282	IF (lp_obc_west) THEN ! West
283	DO ji = niw0 , niw1
284	sfow(njw0p1:njw1m1,:) = twmsk(njw0p1:njw1m1,:) * sn (ji , njw0p1:njw1m1 , :)
285	tfow(njw0p1:njw1m1,:) = twmsk(njw0p1:njw1m1,:) * tn (ji , njw0p1:njw1m1 , :)
286	ufow(njw0p1:njw1m1,:) = uwmsk(njw0p1:njw1m1,:) * un (ji , njw0p1:njw1m1 , :)
287	vfow(njw0p1:njw1m1,:) = vwmsk(njw0p1:njw1m1,:) * vn (ji , njw0p1:njw1m1 , :)
288	END DO
289	ENDIF
290
291	IF (lp_obc_north) THEN ! North
292	DO jj = njn0 , njn1
293	sfon(nin0p1:nin1m1,:) = tnmsk(nin0p1:nin1m1,:) * sn (nin0p1:nin1m1 , jj+1 , :)
294	tfon(nin0p1:nin1m1,:) = tnmsk(nin0p1:nin1m1,:) * tn (nin0p1:nin1m1 , jj+1 , :)
295	ufon(nin0p1:nin1m1,:) = unmsk(nin0p1:nin1m1,:) * un (nin0p1:nin1m1 , jj+1 , :)
296	vfon(nin0p1:nin1m1,:) = vnmsk(nin0p1:nin1m1,:) * vn (nin0p1:nin1m1 , jj , :)
297	END DO
298	ENDIF
299
300	IF (lp_obc_south) THEN ! South
301	DO jj = njs0 , njs1
302	sfos(nis0p1:nis1m1,:) = tsmsk(nis0p1:nis1m1,:) * sn (nis0p1:nis1m1 , jj , :)
303	tfos(nis0p1:nis1m1,:) = tsmsk(nis0p1:nis1m1,:) * tn (nis0p1:nis1m1 , jj , :)
304	ufos(nis0p1:nis1m1,:) = usmsk(nis0p1:nis1m1,:) * un (nis0p1:nis1m1 , jj , :)
305	vfos(nis0p1:nis1m1,:) = vsmsk(nis0p1:nis1m1,:) * vn (nis0p1:nis1m1 , jj , :)
306	END DO
307	ENDIF
308	RETURN ! exit the routine all is done
309	ENDIF ! nobc_dta = 0
310
311	!!!! In the following OBC data are read from files.
312	! all logical-mask are initialzed to true when declared
313	WHERE ( temsk == 0 ) ltemsk=.FALSE.
314	WHERE ( uemsk == 0 ) luemsk=.FALSE.
315	WHERE ( vemsk == 0 ) lvemsk=.FALSE.
316
317	WHERE ( twmsk == 0 ) ltwmsk=.FALSE.
318	WHERE ( uwmsk == 0 ) luwmsk=.FALSE.
319	WHERE ( vwmsk == 0 ) lvwmsk=.FALSE.
320
321	WHERE ( tnmsk == 0 ) ltnmsk=.FALSE.
322	WHERE ( unmsk == 0 ) lunmsk=.FALSE.
323	WHERE ( vnmsk == 0 ) lvnmsk=.FALSE.
324
325	WHERE ( tsmsk == 0 ) ltsmsk=.FALSE.
326	WHERE ( usmsk == 0 ) lusmsk=.FALSE.
327	WHERE ( vsmsk == 0 ) lvsmsk=.FALSE.
328
329	iyear=1950; imonth=01; iday=01; zsec=0.
330	! zjuliancnes : julian day corresonding to 01/01/1950
331	CALL ymds2ju(iyear, imonth, iday,zsec , zjuliancnes)
332
333	!current year and curent month
334	iyy=INT(ndastp/10000) ; imm=INT((ndastp -iyy10000)/100) ; idd=(ndastp-iyy10000-imm*100)
335	IF (iyy < 1900) iyy = iyy+1900 ! always assume that years are on 4 digits.
336	CALL ymds2ju(iyy, imm, idd ,zsec , zjulian)
337	ndate0_cnes = zjulian - zjuliancnes ! jcnes day when call to obc_dta_ini
338
339	iyyfile=iyy ; immfile=0 ! set component of the current file name
340	IF ( cffile /= 'annual') immfile=imm
341	IF ( ln_obc_clim) iyyfile = 0 ! assume that climatological files are labeled y0000
342
343	CALL obc_dta_chktime ( iyyfile, immfile )
344
345	IF ( itobc == 1 ) THEN
346	! in this case we will provide boundary data only once.
347	nt_a=1 ; ntobc_a=1
348	CALL obc_read (nit000, nt_a, ntobc_a, iyyfile, immfile)
349	IF( lp_obc_east ) THEN
350	! fills sfoe, tfoe, ufoe ,vfoe
351	sfoe(:,:) = sedta (:,:,1) ; tfoe(:,:) = tedta (:,:,1)
352	ufoe(:,:) = uedta (:,:,1) ; vfoe(:,:) = vedta (:,:,1)
353	ENDIF
354
355	IF( lp_obc_west) THEN
356	! fills sfow, tfow, ufow ,vfow
357	sfow(:,:) = swdta (:,:,1) ; tfow(:,:) = twdta (:,:,1)
358	ufow(:,:) = uwdta (:,:,1) ; vfow(:,:) = vwdta (:,:,1)
359	ENDIF
360
361	IF( lp_obc_north) THEN
362	! fills sfon, tfon, ufon ,vfon
363	sfon(:,:) = sndta (:,:,1) ; tfon(:,:) = tndta (:,:,1)
364	ufon(:,:) = undta (:,:,1) ; vfon(:,:) = vndta (:,:,1)
365	ENDIF
366
367	IF( lp_obc_south) THEN
368	! fills sfos, tfos, ufos ,vfos
369	sfos(:,:) = ssdta (:,:,1) ; tfos(:,:) = tsdta (:,:,1)
370	ufos(:,:) = usdta (:,:,1) ; vfos(:,:) = vsdta (:,:,1)
371	ENDIF
372	RETURN ! we go out of obc_dta_ini -------------------------------------->>>>>
373	ENDIF
374
375	! nday_year is the day number in the current year ( 1 for 01/01 )
376	! we suppose that we always start from the begining of a day
377	! zsec=MOD( (kt-nit000)rdt - (nday_year - nday_year0 )rday, rday ) ! number of seconds in the current day
378	zsec=0.e0 ! here, kt=nit000, nday_year = ndat_year0
379
380	IF (ln_obc_clim) THEN
381	zjcnes = nday_year - 1 + zsec/rday ! for clim file time is in days in a year
382	ELSE
383	zjcnes = ndate0_cnes + (nday_year - nday_year0 ) + zsec/rday
384	ENDIF
385
386	! look for 'before' record number in the current file
387	ntobc = nrecbef ()
388
389	IF (lwp) WRITE(numout,*) 'obc files frequency :',cffile
390	IF (lwp) WRITE(numout,*) ' zjcnes0 =',zjcnes,' ndastp0 =',ndastp
391	IF (lwp) WRITE(numout,*) ' annee0 ',iyy,' month0 ', imm,' day0 ', idd
392	IF (lwp) WRITE(numout,*) 'first file open :',cl_obc_nTS
393
394	! record initialisation
395	!--------------------
396	nt_b = 1 ; nt_a = 2
397
398	ntobc_a = ntobc + 1
399	ntobc_b = ntobc
400
401	CALL obc_read (kt, nt_b, ntobc_b, iyyfile, immfile) ! read 'before' fields
402	CALL obc_read (kt, nt_a, ntobc_a, iyyfile, immfile) ! read 'after' fields
403
404	zjcnes_obc(nt_b)= ztcobc(ntobc_b)
405	zjcnes_obc(nt_a)= ztcobc(ntobc_a)
406	!
407	END SUBROUTINE obc_dta_ini
408
409
410	SUBROUTINE obc_dta_chktime (kyyfile, kmmfile)
411	!
412	! check the number of time steps in the files and read ztcobc
413	!
414	! * Arguments
415	INTEGER, INTENT(in) :: kyyfile, kmmfile
416	! * local variables
417	INTEGER :: istop ! error control
418	INTEGER :: ji ! dummy loop index
419
420	INTEGER :: idvar, id_e, id_w, id_n, id_s, id_x ! file identifiers
421	INTEGER, DIMENSION(1) :: itmp
422	CHARACTER(LEN=25) :: cl_vname
423
424	ntobc_a = 0; itobce =0 ; itobcw = 0; itobcn = 0; itobcs = 0
425	! build file name
426	WRITE(cl_obc_eTS ,'("obc_east_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
427	WRITE(cl_obc_wTS ,'("obc_west_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
428	WRITE(cl_obc_nTS ,'("obc_north_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
429	WRITE(cl_obc_sTS ,'("obc_south_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
430
431	cl_vname = 'time_counter'
432	IF ( lp_obc_east ) THEN
433	CALL iom_open ( cl_obc_eTS , id_e )
434	idvar = iom_varid( id_e, cl_vname, kdimsz = itmp ); itobce=itmp(1)
435	ENDIF
436	IF ( lp_obc_west ) THEN
437	CALL iom_open ( cl_obc_wTS , id_w )
438	idvar = iom_varid( id_w, cl_vname, kdimsz = itmp ) ; itobcw=itmp(1)
439	ENDIF
440	IF ( lp_obc_north ) THEN
441	CALL iom_open ( cl_obc_nTS , id_n )
442	idvar = iom_varid( id_n, cl_vname, kdimsz = itmp ) ; itobcn=itmp(1)
443	ENDIF
444	IF ( lp_obc_south ) THEN
445	CALL iom_open ( cl_obc_sTS , id_s )
446	idvar = iom_varid( id_s, cl_vname, kdimsz = itmp ) ; itobcs=itmp(1)
447	ENDIF
448
449	itobc = MAX( itobce, itobcw, itobcn, itobcs )
450	istop = 0
451	IF ( lp_obc_east .AND. itobce /= itobc ) istop = istop+1
452	IF ( lp_obc_west .AND. itobcw /= itobc ) istop = istop+1
453	IF ( lp_obc_north .AND. itobcn /= itobc ) istop = istop+1
454	IF ( lp_obc_south .AND. itobcs /= itobc ) istop = istop+1
455	nstop = nstop + istop
456
457	IF ( istop /= 0 ) THEN
458	WRITE(ctmp1,*) ' east, west, north, south: ', itobce, itobcw, itobcn, itobcs
459	CALL ctl_stop( 'obcdta : all files must have the same number of time steps', ctmp1 )
460	ENDIF
461
462	IF ( itobc == 1 ) THEN
463	IF (lwp) THEN
464	WRITE(numout,*) ' obcdta found one time step only in the OBC files'
465	IF (ln_obc_clim) THEN
466	! OK no problem
467	ELSE
468	ln_obc_clim=.true.
469	WRITE(numout,*) ' we force ln_obc_clim to T'
470	ENDIF
471	ENDIF
472	ELSE
473	IF ( ALLOCATED(ztcobc) ) DEALLOCATE ( ztcobc )
474	ALLOCATE (ztcobc(itobc))
475	DO ji=1,1 ! use a dummy loop to read ztcobc only once
476	IF ( lp_obc_east ) THEN
477	CALL iom_gettime ( id_e, ztcobc, cl_vname ) ; CALL iom_close (id_e) ; EXIT
478	ENDIF
479	IF ( lp_obc_west ) THEN
480	CALL iom_gettime ( id_w, ztcobc, cl_vname ) ; CALL iom_close (id_w) ; EXIT
481	ENDIF
482	IF ( lp_obc_north ) THEN
483	CALL iom_gettime ( id_n, ztcobc, cl_vname ) ; CALL iom_close (id_n) ; EXIT
484	ENDIF
485	IF ( lp_obc_south ) THEN
486	CALL iom_gettime ( id_s, ztcobc, cl_vname ) ; CALL iom_close (id_s) ; EXIT
487	ENDIF
488	END DO
489	rdt_obc = ztcobc(2)-ztcobc(1) ! just an information, not used for any computation
490	IF (lwp) WRITE(numout,*) ' obcdta found', itobc,' time steps in the OBC files'
491	IF (lwp) WRITE(numout,*) ' time step of obc data :', rdt_obc,' days'
492	ENDIF
493	zjcnes = zjcnes - rdt/rday ! trick : zcnes is always incremented by rdt/rday in obc_dta!
494	END SUBROUTINE obc_dta_chktime
495
496
497	#if defined key_dynspg_ts \|\| defined key_dynspg_exp
498	SUBROUTINE obc_dta_bt( kt, kbt )
499	!!---------------------------------------------------------------------------
500	!! * SUBROUTINE obc_dta *
501	!!
502	!! ** Purpose : time interpolation of barotropic data for time-splitting scheme
503	!! Data at the boundary must be in m2/s
504	!!
505	!! History :
506	!! 9.0 ! 05-11 (V. garnier) Original code
507	!!---------------------------------------------------------------------------
508	!! * Arguments
509	INTEGER, INTENT( in ) :: kt ! ocean time-step index
510	INTEGER, INTENT( in ) :: kbt ! barotropic ocean time-step index
511
512	!! * Local declarations
513	INTEGER :: ji, jj, jk, ii, ij ! dummy loop indices
514	INTEGER :: id_e, id_w, id_n, id_s, fid ! file identifiers
515	INTEGER :: itimo, iman, imois, i15
516	INTEGER :: itobcm, itobcp, itimom, itimop
517	REAL(wp) :: zxy
518	INTEGER :: isrel, ikt ! number of seconds since 1/1/1992
519	INTEGER :: iprint ! frequency for printouts.
520
521	!!---------------------------------------------------------------------------
522
523	! 1. First call: check time frames available in files.
524	! -------------------------------------------------------
525
526	IF( kt == nit000 ) THEN
527
528	! 1.1 Barotropic tangential velocities set to zero
529	! -------------------------------------------------
530	IF( lp_obc_east ) vbtfoe(:) = 0.e0
531	IF( lp_obc_west ) vbtfow(:) = 0.e0
532	IF( lp_obc_south ) ubtfos(:) = 0.e0
533	IF( lp_obc_north ) ubtfon(:) = 0.e0
534
535	! 1.2 Sea surface height and normal barotropic velocities set to zero
536	! or initial conditions if nobc_dta == 0
537	! --------------------------------------------------------------------
538
539	IF( lp_obc_east ) THEN
540	! initialisation to zero
541	sshedta(:,:) = 0.e0
542	ubtedta(:,:) = 0.e0
543	! ! ================== !
544	IF( nobc_dta == 0 ) THEN ! initial state used !
545	! ! ================== !
546	! Fills sedta, tedta, uedta (global arrays)
547	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
548	DO ji = nie0, nie1
549	DO jj = nje0p1, nje1m1
550	ij = jj -1 + njmpp
551	sshedta(ij,1) = sshn(ji+1,jj) * tmask(ji+1,jj,1)
552	END DO
553	END DO
554	ENDIF
555	ENDIF
556
557	IF( lp_obc_west) THEN
558	! initialisation to zero
559	sshwdta(:,:) = 0.e0
560	ubtwdta(:,:) = 0.e0
561	! ! ================== !
562	IF( nobc_dta == 0 ) THEN ! initial state used !
563	! ! ================== !
564	! Fills swdta, twdta, uwdta (global arrays)
565	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
566	DO ji = niw0, niw1
567	DO jj = njw0p1, njw1m1
568	ij = jj -1 + njmpp
569	sshwdta(ij,1) = sshn(ji,jj) * tmask(ji,jj,1)
570	END DO
571	END DO
572	ENDIF
573	ENDIF
574
575	IF( lp_obc_north) THEN
576	! initialisation to zero
577	sshndta(:,:) = 0.e0
578	vbtndta(:,:) = 0.e0
579	! ! ================== !
580	IF( nobc_dta == 0 ) THEN ! initial state used !
581	! ! ================== !
582	! Fills sndta, tndta, vndta (global arrays)
583	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
584	DO jj = njn0, njn1
585	DO ji = nin0p1, nin1m1
586	DO jk = 1, jpkm1
587	ii = ji -1 + nimpp
588	vbtndta(ii,1) = vbtndta(ii,1) + vndta(ii,jk,1)*fse3v(ji,jj,jk)
589	END DO
590	sshndta(ii,1) = sshn(ii,jj+1) * tmask(ji,jj+1,1)
591	END DO
592	END DO
593	ENDIF
594	ENDIF
595
596	IF( lp_obc_south) THEN
597	! initialisation to zero
598	ssdta(:,:,:) = 0.e0
599	tsdta(:,:,:) = 0.e0
600	vsdta(:,:,:) = 0.e0
601	sshsdta(:,:) = 0.e0
602	vbtsdta(:,:) = 0.e0
603	! ! ================== !
604	IF( nobc_dta == 0 ) THEN ! initial state used !
605	! ! ================== !
606	! Fills ssdta, tsdta, vsdta (global arrays)
607	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
608	DO jj = njs0, njs1
609	DO ji = nis0p1, nis1m1
610	DO jk = 1, jpkm1
611	ii = ji -1 + nimpp
612	vbtsdta(ii,1) = vbtsdta(ii,1) + vsdta(ii,jk,1)*fse3v(ji,jj,jk)
613	END DO
614	sshsdta(ii,1) = sshn(ji,jj) * tmask(ii,jj,1)
615	END DO
616	END DO
617	ENDIF
618	ENDIF
619
620	ENDIF ! END IF kt == nit000
621
622	!!------------------------------------------------------------------------------------
623	! 2. Initialize the time we are at. Does this every time the routine is called,
624	! excepted when nobc_dta = 0
625	!
626	IF( nobc_dta == 0) THEN
627	itimo = 1
628	zxy = 0
629	ELSE
630	IF(ntobc == 1) THEN
631	itimo = 1
632	ELSE IF (ntobc == 12) THEN ! BC are monthly
633	! we assume we have climatology in that case
634	iman = 12
635	i15 = nday / 16
636	imois = nmonth + i15 - 1
637	IF( imois == 0 ) imois = iman
638	itimo = imois
639	ELSE
640	IF(lwp) WRITE(numout,*) 'data other than constant or monthly',kt
641	iman = ntobc
642	itimo = FLOOR( kt*rdt / tcobc(1))
643	isrel=kt*rdt
644	ENDIF
645	ENDIF
646
647	! 2. Read two records in the file if necessary
648	! ---------------------------------------------
649
650	IF( nobc_dta == 1 .AND. nlecto == 1 ) THEN
651
652	IF( lp_obc_east ) THEN
653	! ... Read datafile and set sea surface height and barotropic velocity
654	! ... initialise the sshedta, ubtedta arrays
655	sshedta(:,0) = sshedta(:,1)
656	ubtedta(:,0) = ubtedta(:,1)
657	CALL iom_open ( 'obceast_TS.nc', id_e )
658	CALL iom_get ( id_e, jpdom_unknown, 'vossurfh', sshedta(:,1), ktime=ntobc1 )
659	CALL iom_get ( id_e, jpdom_unknown, 'vossurfh', sshedta(:,2), ktime=ntobc2 )
660	IF( lk_dynspg_ts ) THEN
661	CALL iom_get (id_e, jpdom_unknown, 'vossurfh', sshedta(:,3), ktime=ntobc2+1 )
662	ENDIF
663	CALL iom_close ( id_e )
664	!
665	CALL iom_open ( 'obceast_U.nc', id_e )
666	CALL iom_get ( id_e, jpdom_unknown, 'vozoubt', ubtedta(:,1), ktime=ntobc1 )
667	CALL iom_get ( id_e, jpdom_unknown, 'vozoubt', ubtedta(:,2), ktime=ntobc2 )
668	IF( lk_dynspg_ts ) THEN
669	CALL iom_get ( id_e, jpdom_unknown, 'vozoubt', ubtedta(:,3), ktime=ntobc2+1 )
670	ENDIF
671	CALL iom_close ( id_e )
672	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
673	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
674	WRITE(numout,*)
675	WRITE(numout,*) ' Read East OBC barotropic data records ', ntobc1, ntobc2
676	iprint = (jpjef-jpjed+1)/20 +1
677	WRITE(numout,*)
678	WRITE(numout,*) ' Sea surface height record 1'
679	CALL prihre( sshedta(:,1), jpjef-jpjed+1, 1, 1, jpjef-jpjed+1, iprint, 1, 1, -3, 1., numout )
680	WRITE(numout,*)
681	WRITE(numout,*) ' Normal transport (m2/s) record 1',iprint
682	CALL prihre( ubtedta(:,1), jpjef-jpjed+1, 1, 1, jpjef-jpjed+1, iprint, 1, 1, -3, 1., numout )
683	ENDIF
684	ENDIF
685
686	IF( lp_obc_west ) THEN
687	! ... Read datafile and set temperature, salinity and normal velocity
688	! ... initialise the swdta, twdta, uwdta arrays
689	sshwdta(:,0) = sshwdta(:,1)
690	ubtwdta(:,0) = ubtwdta(:,1)
691	CALL iom_open ( 'obcwest_TS.nc', id_w )
692	CALL iom_get ( id_w, jpdom_unknown, 'vossurfh', sshwdta(:,1), ktime=ntobc1 )
693	CALL iom_get ( id_w, jpdom_unknown, 'vossurfh', sshwdta(:,2), ktime=ntobc2 )
694	IF( lk_dynspg_ts ) THEN
695	CALL ( id_w, jpdom_unknown, 'vossurfh', sshwdta(:,3), ktime=ntobc2+1 )
696	ENDIF
697	CALL iom_close ( id_w )
698	!
699	CALL iom_open ( 'obcwest_U.nc', id_w )
700	CALL iom_get ( id_w, jpdom_unknown, 'vozoubt', ubtwdta(:,1), ktime=ntobc1 )
701	CALL iom_get ( id_w, jpdom_unknown, 'vozoubt', ubtwdta(:,2), ktime=ntobc2 )
702	IF( lk_dynspg_ts ) THEN
703	CALL iom_get ( id_w, jpdom_unknown, 'vozoubt', ubtwdta(:,3), ktime=ntobc2+1 )
704	ENDIF
705	CALL iom_close ( id_w )
706	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
707	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
708	WRITE(numout,*)
709	WRITE(numout,*) ' Read West OBC barotropic data records ', ntobc1, ntobc2
710	iprint = (jpjwf-jpjwd+1)/20 +1
711	WRITE(numout,*)
712	WRITE(numout,*) ' Sea surface height record 1 - printout surface level'
713	CALL prihre( sshwdta(:,1), jpjwf-jpjwd+1, 1, 1, jpjwf-jpjwd+1, iprint, 1, 1, -3, 1., numout )
714	WRITE(numout,*)
715	WRITE(numout,*) ' Normal transport (m2/s) record 1'
716	CALL prihre( ubtwdta(:,1), jpjwf-jpjwd+1, 1, 1, jpjwf-jpjwd+1, iprint, 1, 1, -3, 1., numout )
717	ENDIF
718	ENDIF
719
720	IF( lp_obc_north) THEN
721	! ... Read datafile and set sea surface height and barotropic velocity
722	! ... initialise the sshndta, ubtndta arrays
723	sshndta(:,0) = sshndta(:,1)
724	vbtndta(:,0) = vbtndta(:,1)
725	CALL iom_open ( 'obcnorth_TS.nc', id_n )
726	CALL iom_get (id_n, jpdom_unknown, 'vossurfh', sshndta(:,1), ktime=ntobc1 )
727	CALL iom_get (id_n, jpdom_unknown, 'vossurfh', sshndta(:,2), ktime=ntobc2 )
728	IF( lk_dynspg_ts ) THEN
729	CALL iom_get (id_n, jpdom_unknown, 'vossurfh', sshndta(:,3), ktime=ntobc2+1 )
730	ENDIF
731	CALL iom_close ( id_n )
732
733	CALL iom_open ( 'obcnorth_V.nc', id_n )
734	CALL iom_get (id_n, jpdom_unknown, 'vomevbt', vbtndta(:,1), ktime=ntobc1 )
735	CALL iom_get (id_n, jpdom_unknown, 'vomevbt', vbtndta(:,2), ktime=ntobc2 )
736	IF( lk_dynspg_ts ) THEN
737	CALL iom_get (id_n, jpdom_unknown, 'vomevbt', vbtndta(:,3), ktime=ntobc2+1 )
738	ENDIF
739	CALL iom_close ( id_n )
740
741	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
742	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
743	WRITE(numout,*)
744	WRITE(numout,*) ' Read North OBC barotropic data records ', ntobc1, ntobc2
745	iprint = (jpinf-jpind+1)/20 +1
746	WRITE(numout,*)
747	WRITE(numout,*) ' Sea surface height record 1 - printout surface level'
748	CALL prihre( sshndta(:,1), jpinf-jpind+1, 1, 1, jpinf-jpind+1, iprint, 1, 1, -3, 1., numout )
749	WRITE(numout,*)
750	WRITE(numout,*) ' Normal transport (m2/s) record 1'
751	CALL prihre( vbtndta(:,1), jpinf-jpind+1, 1, 1, jpinf-jpind+1, iprint, 1, 1, -3, 1., numout )
752	ENDIF
753	ENDIF
754
755	IF( lp_obc_south) THEN
756	! ... Read datafile and set sea surface height and barotropic velocity
757	! ... initialise the sshsdta, ubtsdta arrays
758	sshsdta(:,0) = sshsdta(:,1)
759	vbtsdta(:,0) = vbtsdta(:,1)
760	CALL iom_open ( 'obcsouth_TS.nc', id_s )
761	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(:,1), ktime=ntobc1 )
762	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(:,2), ktime=ntobc2 )
763	IF( lk_dynspg_ts ) THEN
764	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(:,3), ktime=ntobc2+1 )
765	ENDIF
766	CALL iom_close ( id_s )
767
768	CALL iom_open ( 'obcsouth_V.nc', id_s )
769	CALL iom_get ( id_s, jpdom_unknown, 'vomevbt', vbtsdta(:,1), ktime=ntobc1 )
770	CALL iom_get ( id_s, jpdom_unknown, 'vomevbt', vbtsdta(:,2), ktime=ntobc2 )
771	IF( lk_dynspg_ts ) THEN
772	CALL iom_get ( id_s, jpdom_unknown, 'vomevbt', vbtsdta(:,3), ktime=ntobc2+1 )
773	ENDIF
774	CALL iom_close ( id_s )
775
776	! ... Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
777	IF( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
778	WRITE(numout,*)
779	WRITE(numout,*) ' Read South OBC barotropic data records ', ntobc1, ntobc2
780	iprint = (jpisf-jpisd+1)/20 +1
781	WRITE(numout,*)
782	WRITE(numout,*) ' Sea surface height record 1 - printout surface level'
783	CALL prihre( sshsdta(:,1), jpisf-jpisd+1, 1, 1, jpisf-jpisd+1, iprint, 1, 1, -3, 1., numout )
784	WRITE(numout,*)
785	WRITE(numout,*) ' Normal transport (m2/s) record 1'
786	CALL prihre( vbtsdta(:,1), jpisf-jpisd+1, 1, 1, jpisf-jpisd+1, iprint, 1, 1, -3, 1., numout )
787	ENDIF
788	ENDIF
789
790	ENDIF ! end of the test on the condition to read or not the files
791
792	! 3. Call at every time step : Linear interpolation of BCs to current time step
793	! ----------------------------------------------------------------------
794
795	IF( lk_dynspg_ts ) THEN
796	isrel = (kt-1)rdt + kbt(rdt/REAL(nn_baro,wp))
797
798	IF( nobc_dta == 1 ) THEN
799	isrel = (kt-1)rdt + kbt(rdt/REAL(nn_baro,wp))
800	itimo = FLOOR( kt*rdt / (tcobc(2)-tcobc(1)) )
801	itimom = FLOOR( (kt-1)*rdt / (tcobc(2)-tcobc(1)) )
802	itimop = FLOOR( (kt+1)*rdt / (tcobc(2)-tcobc(1)) )
803	IF( itimom == itimo .AND. itimop == itimo ) THEN
804	itobcm = ntobc1
805	itobcp = ntobc2
806
807	ELSEIF ( itimom <= itimo .AND. itimop == itimo ) THEN
808	IF( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimo ) THEN
809	itobcm = ntobc1-1
810	itobcp = ntobc2-1
811	ELSE
812	itobcm = ntobc1
813	itobcp = ntobc2
814	ENDIF
815
816	ELSEIF ( itimom == itimo .AND. itimop >= itimo ) THEN
817	IF( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimop ) THEN
818	itobcm = ntobc1
819	itobcp = ntobc2
820	ELSE
821	itobcm = ntobc1+1
822	itobcp = ntobc2+1
823	ENDIF
824
825	ELSEIF ( itimom == itimo-1 .AND. itimop == itimo+1 ) THEN
826	IF( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimo ) THEN
827	itobcm = ntobc1-1
828	itobcp = ntobc2-1
829	ELSEIF ( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) < itimop ) THEN
830	itobcm = ntobc1
831	itobcp = ntobc2
832	ELSEIF ( FLOOR( isrel / (tcobc(2)-tcobc(1)) ) == itimop ) THEN
833	itobcm = ntobc1+1
834	itobcp = ntobc2+2
835	ELSE
836	IF(lwp) WRITE(numout, *) 'obc_dta_bt: You should not have seen this print! error 1?'
837	ENDIF
838	ELSE
839	IF(lwp) WRITE(numout, *) 'obc_dta_bt: You should not have seen this print! error 2?'
840	ENDIF
841
842	ENDIF
843
844	ELSE IF( lk_dynspg_exp ) THEN
845	isrel=kt*rdt
846	itobcm = ntobc1
847	itobcp = ntobc2
848	ENDIF
849
850	IF( ntobc == 1 .OR. nobc_dta == 0 ) THEN
851	zxy = 0.e0
852	ELSE IF( ntobc == 12 ) THEN
853	zxy = FLOAT( nday + 15 - 30 * i15 ) / 30.
854	ELSE
855	zxy = (tcobc(itobcm)-FLOAT(isrel)) / (tcobc(itobcm)-tcobc(itobcp))
856	ENDIF
857
858	IF( lp_obc_east ) THEN ! fills sshfoe, ubtfoe (local to each processor)
859	DO jj = nje0p1, nje1m1
860	ij = jj -1 + njmpp
861	sshfoe(jj) = ( zxy * sshedta(ij,2) + (1.-zxy) * sshedta(ij,1) ) * temsk(jj,1)
862	ubtfoe(jj) = ( zxy * ubtedta(ij,2) + (1.-zxy) * ubtedta(ij,1) ) * uemsk(jj,1)
863	END DO
864	ENDIF
865
866	IF( lp_obc_west) THEN ! fills sshfow, ubtfow (local to each processor)
867	DO jj = njw0p1, njw1m1
868	ij = jj -1 + njmpp
869	sshfow(jj) = ( zxy * sshwdta(ij,2) + (1.-zxy) * sshwdta(ij,1) ) * twmsk(jj,1)
870	ubtfow(jj) = ( zxy * ubtwdta(ij,2) + (1.-zxy) * ubtwdta(ij,1) ) * uwmsk(jj,1)
871	END DO
872	ENDIF
873
874	IF( lp_obc_north) THEN ! fills sshfon, vbtfon (local to each processor)
875	DO ji = nin0p1, nin1m1
876	ii = ji -1 + nimpp
877	sshfon(ji) = ( zxy * sshndta(ii,2) + (1.-zxy) * sshndta(ii,1) ) * tnmsk(ji,1)
878	vbtfon(ji) = ( zxy * vbtndta(ii,2) + (1.-zxy) * vbtndta(ii,1) ) * vnmsk(ji,1)
879	END DO
880	ENDIF
881
882	IF( lp_obc_south) THEN ! fills sshfos, vbtfos (local to each processor)
883	DO ji = nis0p1, nis1m1
884	ii = ji -1 + nimpp
885	sshfos(ji) = ( zxy * sshsdta(ii,2) + (1.-zxy) * sshsdta(ii,1) ) * tsmsk(ji,1)
886	vbtfos(ji) = ( zxy * vbtsdta(ii,2) + (1.-zxy) * vbtsdta(ii,1) ) * vsmsk(ji,1)
887	END DO
888	ENDIF
889
890	END SUBROUTINE obc_dta_bt
891
892	#else
893	!!-----------------------------------------------------------------------------
894	!! Default option
895	!!-----------------------------------------------------------------------------
896	SUBROUTINE obc_dta_bt ( kt, kbt ) ! Empty routine
897	!! * Arguments
898	INTEGER,INTENT(in) :: kt
899	INTEGER, INTENT( in ) :: kbt ! barotropic ocean time-step index
900	WRITE(,) 'obc_dta_bt: You should not have seen this print! error?', kt
901	WRITE(,) 'obc_dta_bt: You should not have seen this print! error?', kbt
902	END SUBROUTINE obc_dta_bt
903	#endif
904
905
906	!!==============================================================================
907	SUBROUTINE obc_read (kt, nt_x, ntobc_x, iyy, imm)
908	!!-------------------------------------------------------------------------
909	!! * ROUTINE obc_read *
910	!!
911	!! ** Purpose : Read the boundary data in files identified by iyy and imm
912	!! According to the validated open boundaries, return the
913	!! following arrays :
914	!! sedta, tedta : East OBC salinity and temperature
915	!! uedta, vedta : " " u and v velocity component
916	!!
917	!! swdta, twdta : West OBC salinity and temperature
918	!! uwdta, vwdta : " " u and v velocity component
919	!!
920	!! sndta, tndta : North OBC salinity and temperature
921	!! undta, vndta : " " u and v velocity component
922	!!
923	!! ssdta, tsdta : South OBC salinity and temperature
924	!! usdta, vsdta : " " u and v velocity component
925	!!
926	!! ** Method : These fields are read in the record ntobc_x of the files.
927	!! The number of records is already known. If ntobc_x is greater
928	!! than the number of record, this routine will look for next file,
929	!! updating the indices (case of inter-annual obcs) or loop at the
930	!! begining in case of climatological file (ln_obc_clim = true ).
931	!! -------------------------------------------------------------------------
932	!! History: ! 2005 ( P. Mathiot, C. Langlais ) Original code
933	!! ! 2008 ( J,M, Molines ) Use IOM and cleaning
934	!!--------------------------------------------------------------------------
935
936	! * Arguments
937	INTEGER, INTENT( in ) :: kt, nt_x
938	INTEGER, INTENT( inout ) :: ntobc_x , iyy, imm ! yes ! inout !
939
940	! * Local variables
941	CHARACTER (len=40) :: & ! file names
942	cl_obc_eTS , cl_obc_eU, cl_obc_eV,&
943	cl_obc_wTS , cl_obc_wU, cl_obc_wV,&
944	cl_obc_nTS , cl_obc_nU, cl_obc_nV,&
945	cl_obc_sTS , cl_obc_sU, cl_obc_sV
946
947	INTEGER :: ikprint
948	REAL(wp) :: zmin, zmax ! control of boundary values
949
950	!IOM stuff
951	INTEGER :: id_e, id_w, id_n, id_s, ji, jj
952	INTEGER, DIMENSION(2) :: istart, icount
953
954	!--------------------------------------------------------------------------
955	IF ( ntobc_x > itobc ) THEN
956	IF (ln_obc_clim) THEN ! just loop on the same file
957	ntobc_x = 1
958	ELSE
959	! need to change file : it is always for an 'after' data
960	IF ( cffile == 'annual' ) THEN ! go to next year file
961	iyy = iyy + 1
962	ELSE IF ( cffile =='monthly' ) THEN ! go to next month file
963	imm = imm + 1
964	IF ( imm == 13 ) THEN
965	imm = 1 ; iyy = iyy + 1
966	ENDIF
967	ELSE
968	ctmp1='obcread : this type of obc file is not supported :( '
969	ctmp2=TRIM(cffile)
970	CALL ctl_stop (ctmp1, ctmp2)
971	! cffile should be either annual or monthly ...
972	ENDIF
973	! as the file is changed, need to update itobc etc ...
974	CALL obc_dta_chktime (iyy,imm)
975	ntobc_x = nrecbef() + 1 ! remember : this case occur for an after data
976	ENDIF
977	ENDIF
978
979	IF ( lp_obc_east ) THEN
980	! ... Read datafile and set temperature, salinity and normal velocity
981	! ... initialise the sedta, tedta, uedta arrays
982	WRITE(cl_obc_eTS ,'("obc_east_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
983	WRITE(cl_obc_eU ,'("obc_east_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
984	WRITE(cl_obc_eV ,'("obc_east_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
985	! JMM this may change depending on the obc data format ...
986	istart(:)=(/nje0+njmpp-1,1/) ; icount(:)=(/nje1-nje0 +1,jpk/)
987	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_eTS)
988	IF (nje1 >= nje0 ) THEN
989	CALL iom_open ( cl_obc_eTS , id_e )
990	CALL iom_get ( id_e, jpdom_unknown, 'votemper', tedta(nje0:nje1,:,nt_x), &
991	& ktime=ntobc_x , kstart=istart, kcount= icount )
992	CALL iom_get ( id_e, jpdom_unknown, 'vosaline', sedta(nje0:nje1,:,nt_x), &
993	& ktime=ntobc_x , kstart=istart, kcount= icount )
994	CALL iom_close (id_e)
995	!
996	CALL iom_open ( cl_obc_eU , id_e )
997	CALL iom_get ( id_e, jpdom_unknown, 'vozocrtx', uedta(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_eV , id_e )
1002	CALL iom_get ( id_e, jpdom_unknown, 'vomecrty', vedta(nje0:nje1,:,nt_x), &
1003	& ktime=ntobc_x , kstart=istart, kcount= icount )
1004	CALL iom_close ( id_e )
1005
1006	! mask the boundary values
1007	tedta(:,:,nt_x) = tedta(:,:,nt_x)temsk(:,:) ; sedta(:,:,nt_x) = sedta(:,:,nt_x)temsk(:,:)
1008	uedta(:,:,nt_x) = uedta(:,:,nt_x)uemsk(:,:) ; vedta(:,:,nt_x) = vedta(:,:,nt_x)vemsk(:,:)
1009
1010	! check any outliers
1011	zmin=MINVAL( sedta(:,:,nt_x), mask=ltemsk ) ; zmax=MAXVAL(sedta(:,:,nt_x), mask=ltemsk)
1012	IF ( zmin < 5 .OR. zmax > 50) THEN
1013	CALL ctl_stop('Error in sedta',' routine obcdta')
1014	ENDIF
1015	zmin=MINVAL( tedta(:,:,nt_x), mask=ltemsk ) ; zmax=MAXVAL(tedta(:,:,nt_x), mask=ltemsk)
1016	IF ( zmin < -10. .OR. zmax > 40) THEN
1017	CALL ctl_stop('Error in tedta',' routine obcdta')
1018	ENDIF
1019	zmin=MINVAL( uedta(:,:,nt_x), mask=luemsk ) ; zmax=MAXVAL(uedta(:,:,nt_x), mask=luemsk)
1020	IF ( zmin < -5. .OR. zmax > 5.) THEN
1021	CALL ctl_stop('Error in uedta',' routine obcdta')
1022	ENDIF
1023	zmin=MINVAL( vedta(:,:,nt_x), mask=lvemsk ) ; zmax=MAXVAL(vedta(:,:,nt_x), mask=lvemsk)
1024	IF ( zmin < -5. .OR. zmax > 5.) THEN
1025	CALL ctl_stop('Error in vedta',' routine obcdta')
1026	ENDIF
1027
1028	! Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
1029	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1030	WRITE(numout,*)
1031	WRITE(numout,*) ' Read East OBC data records ', ntobc_x
1032	ikprint = jpj/20 +1
1033	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1034	CALL prihre( tedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1035	WRITE(numout,*)
1036	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1037	CALL prihre( sedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1038	WRITE(numout,*)
1039	WRITE(numout,*) ' Normal velocity U record 1 - printout every 3 level'
1040	CALL prihre( uedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1041	WRITE(numout,*)
1042	WRITE(numout,*) ' Tangential velocity V record 1 - printout every 3 level'
1043	CALL prihre( vedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1044	ENDIF
1045	ENDIF
1046	ENDIF
1047	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1048	IF ( lp_obc_west ) THEN
1049	! ... Read datafile and set temperature, salinity and normal velocity
1050	! ... initialise the swdta, twdta, uwdta arrays
1051	WRITE(cl_obc_wTS ,'("obc_west_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1052	WRITE(cl_obc_wU ,'("obc_west_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1053	WRITE(cl_obc_wV ,'("obc_west_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1054	istart(:)=(/njw0+njmpp-1,1/) ; icount(:)=(/njw1-njw0 +1,jpk/)
1055	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_wTS)
1056
1057	IF ( njw1 >= njw0 ) THEN
1058	CALL iom_open ( cl_obc_wTS , id_w )
1059	CALL iom_get ( id_w, jpdom_unknown, 'votemper', twdta(njw0:njw1,:,nt_x), &
1060	& ktime=ntobc_x , kstart=istart, kcount= icount )
1061
1062	CALL iom_get ( id_w, jpdom_unknown, 'vosaline', swdta(njw0:njw1,:,nt_x), &
1063	& ktime=ntobc_x , kstart=istart, kcount= icount)
1064	CALL iom_close (id_w)
1065	!
1066	CALL iom_open ( cl_obc_wU , id_w )
1067	CALL iom_get ( id_w, jpdom_unknown, 'vozocrtx', uwdta(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_wV , id_w )
1072	CALL iom_get ( id_w, jpdom_unknown, 'vomecrty', vwdta(njw0:njw1,:,nt_x), &
1073	& ktime=ntobc_x , kstart=istart, kcount= icount )
1074	CALL iom_close ( id_w )
1075
1076	! mask the boundary values
1077	twdta(:,:,nt_x) = twdta(:,:,nt_x)twmsk(:,:) ; swdta(:,:,nt_x) = swdta(:,:,nt_x)twmsk(:,:)
1078	uwdta(:,:,nt_x) = uwdta(:,:,nt_x)uwmsk(:,:) ; vwdta(:,:,nt_x) = vwdta(:,:,nt_x)vwmsk(:,:)
1079
1080	! check any outliers
1081	zmin=MINVAL( swdta(:,:,nt_x), mask=ltwmsk ) ; zmax=MAXVAL(swdta(:,:,nt_x), mask=ltwmsk)
1082	IF ( zmin < 5 .OR. zmax > 50) THEN
1083	CALL ctl_stop('Error in swdta',' routine obcdta')
1084	ENDIF
1085	zmin=MINVAL( twdta(:,:,nt_x), mask=ltwmsk ) ; zmax=MAXVAL(twdta(:,:,nt_x), mask=ltwmsk)
1086	IF ( zmin < -10. .OR. zmax > 40) THEN
1087	CALL ctl_stop('Error in twdta',' routine obcdta')
1088	ENDIF
1089	zmin=MINVAL( uwdta(:,:,nt_x), mask=luwmsk ) ; zmax=MAXVAL(uwdta(:,:,nt_x), mask=luwmsk)
1090	IF ( zmin < -5. .OR. zmax > 5.) THEN
1091	CALL ctl_stop('Error in uwdta',' routine obcdta')
1092	ENDIF
1093	zmin=MINVAL( vwdta(:,:,nt_x), mask=lvwmsk ) ; zmax=MAXVAL(vwdta(:,:,nt_x), mask=lvwmsk)
1094	IF ( zmin < -5. .OR. zmax > 5.) THEN
1095	CALL ctl_stop('Error in vwdta',' routine obcdta')
1096	ENDIF
1097
1098
1099	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1100	WRITE(numout,*)
1101	WRITE(numout,*) ' Read West OBC data records ', ntobc_x
1102	ikprint = jpj/20 +1
1103	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1104	CALL prihre( twdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1105	WRITE(numout,*)
1106	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1107	CALL prihre( swdta(:,:,nt_x),jpj,jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1108	WRITE(numout,*)
1109	WRITE(numout,*) ' Normal velocity U record 1 - printout every 3 level'
1110	CALL prihre( uwdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1111	WRITE(numout,*)
1112	WRITE(numout,*) ' Tangential velocity V record 1 - printout every 3 level'
1113	CALL prihre( vwdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1114	ENDIF
1115	END IF
1116	ENDIF
1117	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1118	IF( lp_obc_north) THEN
1119	WRITE(cl_obc_nTS ,'("obc_north_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1120	WRITE(cl_obc_nV ,'("obc_north_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1121	WRITE(cl_obc_nU ,'("obc_north_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1122	istart(:)=(/nin0+nimpp-1,1/) ; icount(:)=(/nin1-nin0 +1,jpk/)
1123	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_nTS)
1124	IF ( nin1 >= nin0 ) THEN
1125	CALL iom_open ( cl_obc_nTS , id_n )
1126	CALL iom_get ( id_n, jpdom_unknown, 'votemper', tndta(nin0:nin1,:,nt_x), &
1127	& ktime=ntobc_x , kstart=istart, kcount= icount )
1128	CALL iom_get ( id_n, jpdom_unknown, 'vosaline', sndta(nin0:nin1,:,nt_x), &
1129	& ktime=ntobc_x , kstart=istart, kcount= icount )
1130	CALL iom_close (id_n)
1131	!
1132	CALL iom_open ( cl_obc_nU , id_n )
1133	CALL iom_get ( id_n, jpdom_unknown, 'vozocrtx', undta(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_nV , id_n )
1138	CALL iom_get ( id_n, jpdom_unknown, 'vomecrty', vndta(nin0:nin1,:,nt_x), &
1139	& ktime=ntobc_x , kstart=istart, kcount= icount )
1140	CALL iom_close ( id_n )
1141
1142	! mask the boundary values
1143	tndta(:,:,nt_x) = tndta(:,:,nt_x)tnmsk(:,:) ; sndta(:,:,nt_x) = sndta(:,:,nt_x)tnmsk(:,:)
1144	undta(:,:,nt_x) = undta(:,:,nt_x)unmsk(:,:) ; vndta(:,:,nt_x) = vndta(:,:,nt_x)vnmsk(:,:)
1145
1146	! check any outliers
1147	zmin=MINVAL( sndta(:,:,nt_x), mask=ltnmsk ) ; zmax=MAXVAL(sndta(:,:,nt_x), mask=ltnmsk)
1148	IF ( zmin < 5 .OR. zmax > 50) THEN
1149	CALL ctl_stop('Error in sndta',' routine obcdta')
1150	ENDIF
1151	zmin=MINVAL( tndta(:,:,nt_x), mask=ltnmsk ) ; zmax=MAXVAL(tndta(:,:,nt_x), mask=ltnmsk)
1152	IF ( zmin < -10. .OR. zmax > 40) THEN
1153	CALL ctl_stop('Error in tndta',' routine obcdta')
1154	ENDIF
1155	zmin=MINVAL( undta(:,:,nt_x), mask=lunmsk ) ; zmax=MAXVAL(undta(:,:,nt_x), mask=lunmsk)
1156	IF ( zmin < -5. .OR. zmax > 5.) THEN
1157	CALL ctl_stop('Error in undta',' routine obcdta')
1158	ENDIF
1159	zmin=MINVAL( vndta(:,:,nt_x), mask=lvnmsk ) ; zmax=MAXVAL(vndta(:,:,nt_x), mask=lvnmsk)
1160	IF ( zmin < -5. .OR. zmax > 5.) THEN
1161	CALL ctl_stop('Error in vndta',' routine obcdta')
1162	ENDIF
1163
1164	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1165	WRITE(numout,*)
1166	WRITE(numout,*) ' Read North OBC data records ', ntobc_x
1167	ikprint = jpi/20 +1
1168	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1169	CALL prihre( tndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1170	WRITE(numout,*)
1171	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1172	CALL prihre( sndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1173	WRITE(numout,*)
1174	WRITE(numout,*) ' Normal velocity V record 1 - printout every 3 level'
1175	CALL prihre( vndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1176	WRITE(numout,*)
1177	WRITE(numout,*) ' Tangential velocity U record 1 - printout every 3 level'
1178	CALL prihre( undta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1179	ENDIF
1180	ENDIF
1181	ENDIF
1182	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1183	IF( lp_obc_south) THEN
1184	WRITE(cl_obc_sTS ,'("obc_south_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1185	WRITE(cl_obc_sV ,'("obc_south_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1186	WRITE(cl_obc_sU ,'("obc_south_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1187	istart(:)=(/nis0+nimpp-1,1/) ; icount(:)=(/nis1-nis0 +1,jpk/)
1188	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_sTS)
1189	IF ( nis1 >= nis0 ) THEN
1190	CALL iom_open ( cl_obc_sTS , id_s )
1191	CALL iom_get ( id_s, jpdom_unknown, 'votemper', tsdta(nis0:nis1,:,nt_x), &
1192	& ktime=ntobc_x , kstart=istart, kcount= icount )
1193	CALL iom_get ( id_s, jpdom_unknown, 'vosaline', ssdta(nis0:nis1,:,nt_x), &
1194	& ktime=ntobc_x , kstart=istart, kcount= icount )
1195	CALL iom_close (id_s)
1196	!
1197	CALL iom_open ( cl_obc_sU , id_s )
1198	CALL iom_get ( id_s, jpdom_unknown, 'vozocrtx', usdta(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_sV , id_s )
1203	CALL iom_get ( id_s, jpdom_unknown, 'vomecrty', vsdta(nis0:nis1,:,nt_x), &
1204	& ktime=ntobc_x , kstart=istart, kcount= icount )
1205	CALL iom_close ( id_s )
1206
1207	! mask the boundary values
1208	tsdta(:,:,nt_x) = tsdta(:,:,nt_x)tsmsk(:,:) ; ssdta(:,:,nt_x) = ssdta(:,:,nt_x)tsmsk(:,:)
1209	usdta(:,:,nt_x) = usdta(:,:,nt_x)usmsk(:,:) ; vsdta(:,:,nt_x) = vsdta(:,:,nt_x)vsmsk(:,:)
1210
1211	! check any outliers
1212	zmin=MINVAL( ssdta(:,:,nt_x), mask=ltsmsk ) ; zmax=MAXVAL(ssdta(:,:,nt_x), mask=ltsmsk)
1213	IF ( zmin < 5 .OR. zmax > 50) THEN
1214	CALL ctl_stop('Error in ssdta',' routine obcdta')
1215	ENDIF
1216	zmin=MINVAL( tsdta(:,:,nt_x), mask=ltsmsk ) ; zmax=MAXVAL(tsdta(:,:,nt_x), mask=ltsmsk)
1217	IF ( zmin < -10. .OR. zmax > 40) THEN
1218	CALL ctl_stop('Error in tsdta',' routine obcdta')
1219	ENDIF
1220	zmin=MINVAL( usdta(:,:,nt_x), mask=lusmsk ) ; zmax=MAXVAL(usdta(:,:,nt_x), mask=lusmsk)
1221	IF ( zmin < -5. .OR. zmax > 5.) THEN
1222	CALL ctl_stop('Error in usdta',' routine obcdta')
1223	ENDIF
1224	zmin=MINVAL( vsdta(:,:,nt_x), mask=lvsmsk ) ; zmax=MAXVAL(vsdta(:,:,nt_x), mask=lvsmsk)
1225	IF ( zmin < -5. .OR. zmax > 5.) THEN
1226	CALL ctl_stop('Error in vsdta',' routine obcdta')
1227	ENDIF
1228
1229	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1230	WRITE(numout,*)
1231	WRITE(numout,*) ' Read South OBC data records ', ntobc_x
1232	ikprint = jpi/20 +1
1233	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1234	CALL prihre( tsdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1235	WRITE(numout,*)
1236	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1237	CALL prihre( ssdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1238	WRITE(numout,*)
1239	WRITE(numout,*) ' Normal velocity V record 1 - printout every 3 level'
1240	CALL prihre( vsdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1241	WRITE(numout,*)
1242	WRITE(numout,*) ' Tangential velocity U record 1 - printout every 3 level'
1243	CALL prihre( usdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1244	ENDIF
1245	ENDIF
1246	ENDIF
1247	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1248	END SUBROUTINE obc_read
1249
1250	INTEGER FUNCTION nrecbef()
1251	!!-----------------------------------------------------------------------
1252	!! * FUNCTION nrecbef *
1253	!!
1254	!! Purpose : - provide the before record number in files, with respect to zjcnes
1255	!!
1256	!! History : 2008-04 : ( J.M. Molines ) Original code
1257	!!-----------------------------------------------------------------------
1258
1259	INTEGER :: it , idum
1260
1261	idum = itobc
1262	DO it =1, itobc
1263	IF ( ztcobc(it) > zjcnes ) THEN ; idum = it - 1 ; EXIT ; ENDIF
1264	ENDDO
1265	! idum can be 0 (climato, before first record)
1266	IF ( idum == 0 ) THEN
1267	IF ( ln_obc_clim ) THEN
1268	idum = itobc
1269	ELSE
1270	ctmp1='obc_dta: find ntobc == 0 for non climatological file '
1271	ctmp2='consider adding a first record in your data file '
1272	CALL ctl_stop(ctmp1, ctmp2)
1273	ENDIF
1274	ENDIF
1275	! idum can be itobc ( zjcnes > ztcobc (itobc) )
1276	! This is not a problem ...
1277	nrecbef = idum
1278
1279	END FUNCTION nrecbef
1280
1281	#else
1282	!!------------------------------------------------------------------------------
1283	!! default option: Dummy module NO Open Boundary Conditions
1284	!!------------------------------------------------------------------------------
1285	CONTAINS
1286	SUBROUTINE obc_dta( kt ) ! Dummy routine
1287	INTEGER, INTENT (in) :: kt
1288	WRITE(,) 'obc_dta: You should not have seen this print! error?', kt
1289	END SUBROUTINE obc_dta
1290	#endif
1291	END MODULE obcdta

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