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obcdta.F90 in branches/dev_r2586_dynamic_mem/NEMOGCM/NEMO/OPA_SRC/OBC – NEMO

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source: branches/dev_r2586_dynamic_mem/NEMOGCM/NEMO/OPA_SRC/OBC/obcdta.F90 @ 2636

Last change on this file since 2636 was 2627, checked in by gm, 13 years ago
dynamic mem: #785 ; OPA_SRC compilation without mpp
Property svn:keywords set to `Id`
File size: 60.1 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	USE oce ! ocean dynamics and tracers
13	USE dom_oce ! ocean space and time domain
14	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
15	USE phycst ! physical constants
16	USE obc_par ! ocean open boundary conditions
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 ! ocean: surface pressure gradient
21	USE ioipsl ! now only for ymds2ju function
22	USE iom !
23
24	IMPLICIT NONE
25	PRIVATE
26
27	PUBLIC obc_dta ! routines called by step.F90
28	PUBLIC obc_dta_bt ! routines called by dynspg_ts.F90
29	PUBLIC obc_dta_alloc
30
31
32	REAL(wp), DIMENSION(2) :: zjcnes_obc !
33	REAL(wp), DIMENSION(:), ALLOCATABLE :: ztcobc
34	REAL(wp) :: rdt_obc
35	REAL(wp) :: zjcnes
36	INTEGER :: imm0, iyy0, idd0, iyy, imm, idd
37	INTEGER :: nt_a=2, nt_b=1, itobc, ndate0_cnes, nday_year0
38	INTEGER :: itobce, itobcw, itobcs, itobcn, itobc_b ! number of time steps in OBC files
39
40	INTEGER :: ntobc ! where we are in the obc file
41	INTEGER :: ntobc_b ! first record used
42	INTEGER :: ntobc_a ! second record used
43
44	CHARACTER (len=40) :: cl_obc_eTS, cl_obc_eU ! name of data files
45	CHARACTER (len=40) :: cl_obc_wTS, cl_obc_wU ! - -
46	CHARACTER (len=40) :: cl_obc_nTS, cl_obc_nV ! - -
47	CHARACTER (len=40) :: cl_obc_sTS, cl_obc_sV ! - -
48
49	# if defined key_dynspg_ts
50	! bt arrays for interpolating time dependent data on the boundaries
51	INTEGER :: nt_m=0, ntobc_m
52	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtedta, vbtedta, sshedta ! East
53	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtwdta, vbtwdta, sshwdta ! West
54	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtndta, vbtndta, sshndta ! North
55	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtsdta, vbtsdta, sshsdta ! South
56	! arrays used for interpolating time dependent data on the boundaries
57	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: uedta, vedta, tedta, sedta ! East
58	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: uwdta, vwdta, twdta, swdta ! West
59	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: undta, vndta, tndta, sndta ! North
60	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: usdta, vsdta, tsdta, ssdta ! South
61	# else
62	! bt arrays for interpolating time dependent data on the boundaries
63	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtedta, vbtedta, sshedta ! East
64	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtwdta, vbtwdta, sshwdta ! West
65	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtndta, vbtndta, sshndta ! North
66	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ubtsdta, vbtsdta, sshsdta ! South
67	! arrays used for interpolating time dependent data on the boundaries
68	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: uedta, vedta, tedta, sedta ! East
69	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: uwdta, vwdta, twdta, swdta ! West
70	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: undta, vndta, tndta, sndta ! North
71	REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: usdta, vsdta, tsdta, ssdta ! South
72	# endif
73	! Masks set to .TRUE. after successful allocation below
74	LOGICAL , ALLOCATABLE, SAVE, DIMENSION(:,:) :: ltemsk, luemsk, lvemsk ! boolean msks
75	LOGICAL , ALLOCATABLE, SAVE, DIMENSION(:,:) :: ltwmsk, luwmsk, lvwmsk ! used for outliers
76	LOGICAL , ALLOCATABLE, SAVE, DIMENSION(:,:) :: ltnmsk, lunmsk, lvnmsk ! checks
77	LOGICAL , ALLOCATABLE, SAVE, DIMENSION(:,:) :: ltsmsk, lusmsk, lvsmsk
78
79	!! * Substitutions
80	# include "obc_vectopt_loop_substitute.h90"
81	# include "domzgr_substitute.h90"
82	!!----------------------------------------------------------------------
83	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
84	!! $Id$
85	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
86	!!----------------------------------------------------------------------
87	CONTAINS
88
89	FUNCTION obc_dta_alloc()
90	!!-------------------------------------------------------------------
91	!! * ROUTINE obc_dta_alloc *
92	!!
93	!!-------------------------------------------------------------------
94	IMPLICIT none
95	INTEGER :: obc_dta_alloc
96	INTEGER :: ierr(2)
97	!!-------------------------------------------------------------------
98
99	# if defined key_dynspg_ts
100	ALLOCATE(ubtedta(jpj,0:jptobc), vbtedta(jpj,0:jptobc), &
101	sshedta(jpj,0:jptobc), ubtwdta(jpj,0:jptobc), &
102	vbtwdta(jpj,0:jptobc), sshwdta(jpj,0:jptobc), &
103	ubtndta(jpi,0:jptobc), vbtndta(jpi,0:jptobc), &
104	sshndta(jpi,0:jptobc), ubtsdta(jpi,0:jptobc), &
105	vbtsdta(jpi,0:jptobc), sshsdta(jpi,0:jptobc), &
106	! arrays used for interpolating time dependent data on the boundaries
107	uedta(jpj,jpk,0:jptobc), vedta(jpj,jpk,0:jptobc), &
108	tedta(jpj,jpk,0:jptobc), sedta(jpj,jpk,0:jptobc), &
109	uwdta(jpj,jpk,0:jptobc), vwdta(jpj,jpk,0:jptobc), &
110	twdta(jpj,jpk,0:jptobc), swdta(jpj,jpk,0:jptobc), &
111	undta(jpi,jpk,0:jptobc), vndta(jpi,jpk,0:jptobc), &
112	tndta(jpi,jpk,0:jptobc), sndta(jpi,jpk,0:jptobc), &
113	usdta(jpi,jpk,0:jptobc), vsdta(jpi,jpk,0:jptobc), &
114	tsdta(jpi,jpk,0:jptobc), ssdta(jpi,jpk,0:jptobc), Stat=ierr(1) )
115	# else
116	! bt arrays for interpolating time dependent data on the boundaries
117	ALLOCATE(ubtedta(jpj,jptobc), vbtedta(jpj,jptobc), sshedta(jpj,jptobc), &
118	ubtwdta(jpj,jptobc), vbtwdta(jpj,jptobc), sshwdta(jpj,jptobc), &
119	ubtndta(jpi,jptobc), vbtndta(jpi,jptobc), sshndta(jpi,jptobc), &
120	ubtsdta(jpi,jptobc), vbtsdta(jpi,jptobc), sshsdta(jpi,jptobc), &
121	! arrays used for interpolating time dependent data on the boundaries
122	uedta(jpj,jpk,jptobc), vedta(jpj,jpk,jptobc), &
123	tedta(jpj,jpk,jptobc), sedta(jpj,jpk,jptobc), &
124	uwdta(jpj,jpk,jptobc), vwdta(jpj,jpk,jptobc), &
125	twdta(jpj,jpk,jptobc), swdta(jpj,jpk,jptobc), &
126	undta(jpi,jpk,jptobc), vndta(jpi,jpk,jptobc), &
127	tndta(jpi,jpk,jptobc), sndta(jpi,jpk,jptobc), &
128	usdta(jpi,jpk,jptobc), vsdta(jpi,jpk,jptobc), &
129	tsdta(jpi,jpk,jptobc), ssdta(jpi,jpk,jptobc), Stat=ierr(1) )
130	# endif
131
132	ALLOCATE(uedta(jpj,jpk,jptobc), vedta(jpj,jpk,jptobc), &
133	tedta(jpj,jpk,jptobc), sedta(jpj,jpk,jptobc), &
134	uwdta(jpj,jpk,jptobc), vwdta(jpj,jpk,jptobc), &
135	twdta(jpj,jpk,jptobc), swdta(jpj,jpk,jptobc), &
136	undta(jpj,jpk,jptobc), vndta(jpj,jpk,jptobc), &
137	tndta(jpj,jpk,jptobc), sndta(jpj,jpk,jptobc), &
138	usdta(jpj,jpk,jptobc), vsdta(jpj,jpk,jptobc), &
139	tsdta(jpj,jpk,jptobc), ssdta(jpj,jpk,jptobc), &
140	ltemsk(jpj,jpk), luemsk(jpj,jpk), lvemsk(jpj,jpk), &
141	ltwmsk(jpj,jpk), luwmsk(jpj,jpk), lvwmsk(jpj,jpk), &
142	ltnmsk(jpj,jpk), lunmsk(jpj,jpk), lvnmsk(jpj,jpk), &
143	ltsmsk(jpj,jpk), lusmsk(jpj,jpk), lvsmsk(jpj,jpk), &
144	Stat=ierr(2))
145
146	obc_dta_alloc = MAXVAL(ierr)
147
148	IF(obc_dta_alloc == 0)THEN
149	! Initialise mask values following successful allocation
150	ltemsk(:,:)=.TRUE.
151	luemsk(:,:)=.TRUE.
152	lvemsk(:,:)=.TRUE.
153	ltwmsk(:,:)=.TRUE.
154	luwmsk(:,:)=.TRUE.
155	lvwmsk(:,:)=.TRUE.
156	ltnmsk(:,:)=.TRUE.
157	lunmsk(:,:)=.TRUE.
158	lvnmsk(:,:)=.TRUE.
159	ltsmsk(:,:)=.TRUE.
160	lusmsk(:,:)=.TRUE.
161	lvsmsk(:,:)=.TRUE.
162	END IF
163
164	END FUNCTION obc_dta_alloc
165
166
167	SUBROUTINE obc_dta( kt )
168	!!---------------------------------------------------------------------------
169	!! * SUBROUTINE obc_dta *
170	!!
171	!! ** Purpose : Find the climatological boundary arrays for the specified date,
172	!! The boundary arrays are netcdf files. Three possible cases:
173	!! - one time frame only in the file (time dimension = 1).
174	!! in that case the boundary data does not change in time.
175	!! - many time frames. In that case, if we have 12 frames
176	!! we assume monthly fields.
177	!! Else, we assume that time_counter is in seconds
178	!! since the beginning of either the current year or a reference
179	!! year given in the namelist.
180	!! (no check is done so far but one would have to check the "unit"
181	!! attribute of variable time_counter).
182	!!
183	!!
184	!! History :
185	!! ! 98-05 (J.M. Molines) Original code
186	!! 8.5 ! 02-10 (C. Talandier, A-M. Treguier) Free surface, F90
187	!!
188	!! 9.0 ! 04-06 (F. Durand, A-M. Treguier) Netcdf BC files on input
189	!! ! 2007-2008 (C. Langlais, P. Mathiot, J.M. Molines) high frequency boundaries data
190	!!---------------------------------------------------------------------------
191	!! * Arguments
192	INTEGER, INTENT( in ) :: kt ! ocean time-step index
193
194	!! * Local declarations
195	INTEGER, SAVE :: immfile, iyyfile !
196	INTEGER :: nt ! record indices (incrementation)
197	REAL(wp) :: zsec, zxy, znum, zden ! time interpolation weight
198
199	!!---------------------------------------------------------------------------
200
201	! 0. initialisation :
202	! --------------------
203	IF ( kt == nit000 ) CALL obc_dta_ini ( kt )
204	IF ( nobc_dta == 0 ) RETURN ! already done in obc_dta_ini
205	IF ( itobc == 1 ) RETURN ! case of only one time frame in file done in obc_dta_ini
206
207	! in the following code, we assume that obc data are read from files, with more than 1 time frame in it
208
209	iyyfile=iyy ; immfile = 00 ! set component of the current file name
210	IF ( cffile /= 'annual') immfile = imm !
211	IF ( ln_obc_clim ) iyyfile = 0000 ! assume that climatological files are labeled y0000
212
213	! 1. Synchronize time of run with time of data files
214	!---------------------------------------------------
215	! nday_year is the day number in the current year ( 1 for 01/01 )
216	zsec=MOD( (kt-nit000)rdt - (nday_year - nday_year0 )rday, rday ) ! number of seconds in the current day
217	IF (ln_obc_clim) THEN
218	zjcnes = nday_year - 1 + zsec/rday
219	ELSE
220	zjcnes = zjcnes + rdt/rday
221	ENDIF
222
223	! look for 'before' record number in the current file
224	ntobc = nrecbef () ! this function return the record number for 'before', relative to zjcnes
225
226	IF (MOD(kt-1,10)==0) THEN
227	IF (lwp) WRITE(numout,*) 'kt= ',kt,' zjcnes =', zjcnes,' ndastp =',ndastp, 'mm =',imm
228	END IF
229
230	! 2. read a new data if necessary
231	!--------------------------------
232	IF ( ntobc /= ntobc_b ) THEN
233	! we need to read the 'after' record
234	! swap working index:
235	# if defined key_dynspg_ts
236	nt=nt_m ; nt_m=nt_b ; nt_b=nt
237	# endif
238	nt=nt_b ; nt_b=nt_a ; nt_a=nt
239	ntobc_b = ntobc
240
241	! new record number :
242	ntobc_a = ntobc_a + 1
243
244	! all tricky things related to record number, changing files etc... are managed by obc_read
245
246	CALL obc_read (kt, nt_a, ntobc_a, iyyfile, immfile )
247
248	! update zjcnes_obc
249	# if defined key_dynspg_ts
250	ntobc_m=mod(ntobc_b-2+itobc,itobc)+1
251	zjcnes_obc(nt_m)= ztcobc(ntobc_m)
252	# endif
253	zjcnes_obc(nt_b)= ztcobc(ntobc_b)
254	zjcnes_obc(nt_a)= ztcobc(ntobc_a)
255	ENDIF
256
257	! 3. interpolation at each time step
258	! ------------------------------------
259	IF( ln_obc_clim) THEN
260	znum= MOD(zjcnes - zjcnes_obc(nt_b), REAL(nyear_len(1),wp) )
261	IF( znum < 0 ) znum = znum + REAL(nyear_len(1),wp)
262	zden= MOD(zjcnes_obc(nt_a) - zjcnes_obc(nt_b), REAL(nyear_len(1),wp) )
263	IF( zden < 0 ) zden = zden + REAL(nyear_len(1),wp)
264	ELSE
265	znum= zjcnes - zjcnes_obc(nt_b)
266	zden= zjcnes_obc(nt_a) - zjcnes_obc(nt_b)
267	ENDIF
268	zxy = znum / zden
269
270	IF( lp_obc_east ) THEN
271	! fills sfoe, tfoe, ufoe ,vfoe
272	sfoe(:,:) = zxy * sedta (:,:,nt_a) + (1. - zxy)*sedta(:,:,nt_b)
273	tfoe(:,:) = zxy * tedta (:,:,nt_a) + (1. - zxy)*tedta(:,:,nt_b)
274	ufoe(:,:) = zxy * uedta (:,:,nt_a) + (1. - zxy)*uedta(:,:,nt_b)
275	vfoe(:,:) = zxy * vedta (:,:,nt_a) + (1. - zxy)*vedta(:,:,nt_b)
276	ENDIF
277
278	IF( lp_obc_west) THEN
279	! fills sfow, tfow, ufow ,vfow
280	sfow(:,:) = zxy * swdta (:,:,nt_a) + (1. - zxy)*swdta(:,:,nt_b)
281	tfow(:,:) = zxy * twdta (:,:,nt_a) + (1. - zxy)*twdta(:,:,nt_b)
282	ufow(:,:) = zxy * uwdta (:,:,nt_a) + (1. - zxy)*uwdta(:,:,nt_b)
283	vfow(:,:) = zxy * vwdta (:,:,nt_a) + (1. - zxy)*vwdta(:,:,nt_b)
284	ENDIF
285
286	IF( lp_obc_north) THEN
287	! fills sfon, tfon, ufon ,vfon
288	sfon(:,:) = zxy * sndta (:,:,nt_a) + (1. - zxy)*sndta(:,:,nt_b)
289	tfon(:,:) = zxy * tndta (:,:,nt_a) + (1. - zxy)*tndta(:,:,nt_b)
290	ufon(:,:) = zxy * undta (:,:,nt_a) + (1. - zxy)*undta(:,:,nt_b)
291	vfon(:,:) = zxy * vndta (:,:,nt_a) + (1. - zxy)*vndta(:,:,nt_b)
292	ENDIF
293
294	IF( lp_obc_south) THEN
295	! fills sfos, tfos, ufos ,vfos
296	sfos(:,:) = zxy * ssdta (:,:,nt_a) + (1. - zxy)*ssdta(:,:,nt_b)
297	tfos(:,:) = zxy * tsdta (:,:,nt_a) + (1. - zxy)*tsdta(:,:,nt_b)
298	ufos(:,:) = zxy * usdta (:,:,nt_a) + (1. - zxy)*usdta(:,:,nt_b)
299	vfos(:,:) = zxy * vsdta (:,:,nt_a) + (1. - zxy)*vsdta(:,:,nt_b)
300	ENDIF
301	END SUBROUTINE obc_dta
302
303
304	SUBROUTINE obc_dta_ini (kt)
305	!!-----------------------------------------------------------------------------
306	!! * SUBROUTINE obc_dta_ini *
307	!!
308	!! ** Purpose :
309	!! When obc_dta first call, realize some data initialization
310	!!
311	!! ** Method :
312	!!
313	!! History :
314	!! 9.0 ! 07-10 (J.M. Molines )
315	!!----------------------------------------------------------------------------
316	!! * Argument
317	INTEGER, INTENT(in) :: kt ! ocean time-step index
318
319	!! * Local declarations
320	INTEGER :: ji, jj ! dummy loop indices
321	INTEGER, SAVE :: immfile, iyyfile !
322
323	! variables for the julian day calculation
324	INTEGER :: iyear, imonth, iday
325	REAL(wp) :: zsec , zjulian, zjuliancnes
326
327	IF(lwp) WRITE(numout,*)
328	IF(lwp) WRITE(numout,*) 'obc_dta : find boundary data'
329	IF(lwp) WRITE(numout,*) '~~~~~~~'
330	IF (lwp) THEN
331	IF ( nobc_dta == 0 ) THEN
332	WRITE(numout,*) ' OBC data taken from initial conditions.'
333	ELSE
334	WRITE(numout,*) ' OBC data taken from netcdf files.'
335	ENDIF
336	ENDIF
337	nday_year0 = nday_year ! to remember the day when kt=nit000
338
339	sedta(:,:,:) = 0.e0 ; tedta(:,:,:) = 0.e0 ; uedta(:,:,:) = 0.e0 ; vedta(:,:,:) = 0.e0 ! East
340	swdta(:,:,:) = 0.e0 ; twdta(:,:,:) = 0.e0 ; uwdta(:,:,:) = 0.e0 ; vwdta(:,:,:) = 0.e0 ! West
341	sndta(:,:,:) = 0.e0 ; tndta(:,:,:) = 0.e0 ; undta(:,:,:) = 0.e0 ; vndta(:,:,:) = 0.e0 ! North
342	ssdta(:,:,:) = 0.e0 ; tsdta(:,:,:) = 0.e0 ; usdta(:,:,:) = 0.e0 ; vsdta(:,:,:) = 0.e0 ! South
343
344	sfoe(:,:) = 0.e0 ; tfoe(:,:) = 0.e0 ; ufoe(:,:) = 0.e0 ; vfoe(:,:) = 0.e0 ! East
345	sfow(:,:) = 0.e0 ; tfow(:,:) = 0.e0 ; ufow(:,:) = 0.e0 ; vfow(:,:) = 0.e0 ! West
346	sfon(:,:) = 0.e0 ; tfon(:,:) = 0.e0 ; ufon(:,:) = 0.e0 ; vfon(:,:) = 0.e0 ! North
347	sfos(:,:) = 0.e0 ; tfos(:,:) = 0.e0 ; ufos(:,:) = 0.e0 ; vfos(:,:) = 0.e0 ! South
348
349	IF (nobc_dta == 0 ) THEN ! boundary data are the initial data of this run (set only at nit000)
350	IF (lp_obc_east) THEN ! East
351	DO ji = nie0 , nie1
352	sfoe(nje0:nje1,:) = temsk(nje0:nje1,:) * sn (ji+1 , nje0:nje1 , :) * tmask(ji+1,nje0:nje1 , :)
353	tfoe(nje0:nje1,:) = temsk(nje0:nje1,:) * tn (ji+1 , nje0:nje1 , :) * tmask(ji+1,nje0:nje1 , :)
354	ufoe(nje0:nje1,:) = uemsk(nje0:nje1,:) * un (ji , nje0:nje1 , :) * umask(ji, nje0:nje1 , :)
355	vfoe(nje0:nje1,:) = vemsk(nje0:nje1,:) * vn (ji+1 , nje0:nje1 , :) * vmask(ji+1,nje0:nje1 , :)
356	END DO
357	ENDIF
358
359	IF (lp_obc_west) THEN ! West
360	DO ji = niw0 , niw1
361	sfow(njw0:njw1,:) = twmsk(njw0:njw1,:) * sn (ji , njw0:njw1 , :) * tmask(ji , njw0:njw1 , :)
362	tfow(njw0:njw1,:) = twmsk(njw0:njw1,:) * tn (ji , njw0:njw1 , :) * tmask(ji , njw0:njw1 , :)
363	ufow(njw0:njw1,:) = uwmsk(njw0:njw1,:) * un (ji , njw0:njw1 , :) * umask(ji , njw0:njw1 , :)
364	vfow(njw0:njw1,:) = vwmsk(njw0:njw1,:) * vn (ji , njw0:njw1 , :) * vmask(ji , njw0:njw1 , :)
365	END DO
366	ENDIF
367
368	IF (lp_obc_north) THEN ! North
369	DO jj = njn0 , njn1
370	sfon(nin0:nin1,:) = tnmsk(nin0:nin1,:) * sn (nin0:nin1 , jj+1 , :) * tmask(nin0:nin1 , jj+1 , :)
371	tfon(nin0:nin1,:) = tnmsk(nin0:nin1,:) * tn (nin0:nin1 , jj+1 , :) * tmask(nin0:nin1 , jj+1 , :)
372	ufon(nin0:nin1,:) = unmsk(nin0:nin1,:) * un (nin0:nin1 , jj+1 , :) * umask(nin0:nin1 , jj+1 , :)
373	vfon(nin0:nin1,:) = vnmsk(nin0:nin1,:) * vn (nin0:nin1 , jj , :) * vmask(nin0:nin1 , jj , :)
374	END DO
375	ENDIF
376
377	IF (lp_obc_south) THEN ! South
378	DO jj = njs0 , njs1
379	sfos(nis0:nis1,:) = tsmsk(nis0:nis1,:) * sn (nis0:nis1 , jj , :) * tmask(nis0:nis1 , jj , :)
380	tfos(nis0:nis1,:) = tsmsk(nis0:nis1,:) * tn (nis0:nis1 , jj , :) * tmask(nis0:nis1 , jj , :)
381	ufos(nis0:nis1,:) = usmsk(nis0:nis1,:) * un (nis0:nis1 , jj , :) * umask(nis0:nis1 , jj , :)
382	vfos(nis0:nis1,:) = vsmsk(nis0:nis1,:) * vn (nis0:nis1 , jj , :) * vmask(nis0:nis1 , jj , :)
383	END DO
384	ENDIF
385	RETURN ! exit the routine all is done
386	ENDIF ! nobc_dta = 0
387
388	!!!! In the following OBC data are read from files.
389	! all logical-mask are initialzed to true when declared
390	WHERE ( temsk == 0 ) ltemsk=.FALSE.
391	WHERE ( uemsk == 0 ) luemsk=.FALSE.
392	WHERE ( vemsk == 0 ) lvemsk=.FALSE.
393
394	WHERE ( twmsk == 0 ) ltwmsk=.FALSE.
395	WHERE ( uwmsk == 0 ) luwmsk=.FALSE.
396	WHERE ( vwmsk == 0 ) lvwmsk=.FALSE.
397
398	WHERE ( tnmsk == 0 ) ltnmsk=.FALSE.
399	WHERE ( unmsk == 0 ) lunmsk=.FALSE.
400	WHERE ( vnmsk == 0 ) lvnmsk=.FALSE.
401
402	WHERE ( tsmsk == 0 ) ltsmsk=.FALSE.
403	WHERE ( usmsk == 0 ) lusmsk=.FALSE.
404	WHERE ( vsmsk == 0 ) lvsmsk=.FALSE.
405
406	iyear=1950; imonth=01; iday=01; zsec=0.
407	! zjuliancnes : julian day corresonding to 01/01/1950
408	CALL ymds2ju(iyear, imonth, iday,zsec , zjuliancnes)
409
410	!current year and curent month
411	iyy=INT(ndastp/10000) ; imm=INT((ndastp -iyy10000)/100) ; idd=(ndastp-iyy10000-imm*100)
412	IF (iyy < 1900) iyy = iyy+1900 ! always assume that years are on 4 digits.
413	CALL ymds2ju(iyy, imm, idd ,zsec , zjulian)
414	ndate0_cnes = zjulian - zjuliancnes ! jcnes day when call to obc_dta_ini
415
416	iyyfile=iyy ; immfile=0 ! set component of the current file name
417	IF ( cffile /= 'annual') immfile=imm
418	IF ( ln_obc_clim) iyyfile = 0 ! assume that climatological files are labeled y0000
419
420	CALL obc_dta_chktime ( iyyfile, immfile )
421
422	IF ( itobc == 1 ) THEN
423	! in this case we will provide boundary data only once.
424	nt_a=1 ; ntobc_a=1
425	CALL obc_read (nit000, nt_a, ntobc_a, iyyfile, immfile)
426	IF( lp_obc_east ) THEN
427	! fills sfoe, tfoe, ufoe ,vfoe
428	sfoe(:,:) = sedta (:,:,1) ; tfoe(:,:) = tedta (:,:,1)
429	ufoe(:,:) = uedta (:,:,1) ; vfoe(:,:) = vedta (:,:,1)
430	ENDIF
431
432	IF( lp_obc_west) THEN
433	! fills sfow, tfow, ufow ,vfow
434	sfow(:,:) = swdta (:,:,1) ; tfow(:,:) = twdta (:,:,1)
435	ufow(:,:) = uwdta (:,:,1) ; vfow(:,:) = vwdta (:,:,1)
436	ENDIF
437
438	IF( lp_obc_north) THEN
439	! fills sfon, tfon, ufon ,vfon
440	sfon(:,:) = sndta (:,:,1) ; tfon(:,:) = tndta (:,:,1)
441	ufon(:,:) = undta (:,:,1) ; vfon(:,:) = vndta (:,:,1)
442	ENDIF
443
444	IF( lp_obc_south) THEN
445	! fills sfos, tfos, ufos ,vfos
446	sfos(:,:) = ssdta (:,:,1) ; tfos(:,:) = tsdta (:,:,1)
447	ufos(:,:) = usdta (:,:,1) ; vfos(:,:) = vsdta (:,:,1)
448	ENDIF
449	RETURN ! we go out of obc_dta_ini -------------------------------------->>>>>
450	ENDIF
451
452	! nday_year is the day number in the current year ( 1 for 01/01 )
453	! we suppose that we always start from the begining of a day
454	! zsec=MOD( (kt-nit000)rdt - (nday_year - nday_year0 )rday, rday ) ! number of seconds in the current day
455	zsec=0.e0 ! here, kt=nit000, nday_year = ndat_year0
456
457	IF (ln_obc_clim) THEN
458	zjcnes = nday_year - 1 + zsec/rday ! for clim file time is in days in a year
459	ELSE
460	zjcnes = ndate0_cnes + (nday_year - nday_year0 ) + zsec/rday
461	ENDIF
462
463	! look for 'before' record number in the current file
464	ntobc = nrecbef ()
465
466	IF (lwp) WRITE(numout,*) 'obc files frequency :',cffile
467	IF (lwp) WRITE(numout,*) ' zjcnes0 =',zjcnes,' ndastp0 =',ndastp
468	IF (lwp) WRITE(numout,*) ' annee0 ',iyy,' month0 ', imm,' day0 ', idd
469	IF (lwp) WRITE(numout,*) 'first file open :',cl_obc_nTS
470
471	! record initialisation
472	!--------------------
473	nt_b = 1 ; nt_a = 2
474
475	ntobc_a = ntobc + 1
476	ntobc_b = ntobc
477
478	CALL obc_read (kt, nt_b, ntobc_b, iyyfile, immfile) ! read 'before' fields
479	CALL obc_read (kt, nt_a, ntobc_a, iyyfile, immfile) ! read 'after' fields
480
481	! additional frame in case of time-splitting
482	# if defined key_dynspg_ts
483	nt_m = 0
484	ntobc_m=mod(ntobc_b-2+itobc,itobc)+1
485	zjcnes_obc(nt_m)= ztcobc(ntobc_m) ! FDbug has not checked that this is correct!!
486	IF (ln_rstart) THEN
487	CALL obc_read (kt, nt_m, ntobc_m, iyyfile, immfile) ! read 'after' fields
488	ENDIF
489	# endif
490
491	zjcnes_obc(nt_b)= ztcobc(ntobc_b)
492	zjcnes_obc(nt_a)= ztcobc(ntobc_a)
493	!
494	END SUBROUTINE obc_dta_ini
495
496
497	SUBROUTINE obc_dta_chktime (kyyfile, kmmfile)
498	!
499	! check the number of time steps in the files and read ztcobc
500	!
501	! * Arguments
502	INTEGER, INTENT(in) :: kyyfile, kmmfile
503	! * local variables
504	INTEGER :: istop ! error control
505	INTEGER :: ji ! dummy loop index
506
507	INTEGER :: idvar, id_e, id_w, id_n, id_s ! file identifiers
508	INTEGER, DIMENSION(1) :: itmp
509	CHARACTER(LEN=25) :: cl_vname
510
511	ntobc_a = 0; itobce =0 ; itobcw = 0; itobcn = 0; itobcs = 0
512	! build file name
513	IF(ln_obc_clim) THEN ! revert to old convention for climatological OBC forcing
514	cl_obc_eTS='obceast_TS.nc'
515	cl_obc_wTS='obcwest_TS.nc'
516	cl_obc_nTS='obcnorth_TS.nc'
517	cl_obc_sTS='obcsouth_TS.nc'
518	ELSE ! convention for climatological OBC
519	WRITE(cl_obc_eTS ,'("obc_east_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
520	WRITE(cl_obc_wTS ,'("obc_west_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
521	WRITE(cl_obc_nTS ,'("obc_north_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
522	WRITE(cl_obc_sTS ,'("obc_south_TS_y",i4.4,"m",i2.2,".nc")' ) kyyfile,kmmfile
523	ENDIF
524
525	cl_vname = 'time_counter'
526	IF ( lp_obc_east ) THEN
527	CALL iom_open ( cl_obc_eTS , id_e )
528	idvar = iom_varid( id_e, cl_vname, kdimsz = itmp ); itobce=itmp(1)
529	ENDIF
530	IF ( lp_obc_west ) THEN
531	CALL iom_open ( cl_obc_wTS , id_w )
532	idvar = iom_varid( id_w, cl_vname, kdimsz = itmp ) ; itobcw=itmp(1)
533	ENDIF
534	IF ( lp_obc_north ) THEN
535	CALL iom_open ( cl_obc_nTS , id_n )
536	idvar = iom_varid( id_n, cl_vname, kdimsz = itmp ) ; itobcn=itmp(1)
537	ENDIF
538	IF ( lp_obc_south ) THEN
539	CALL iom_open ( cl_obc_sTS , id_s )
540	idvar = iom_varid( id_s, cl_vname, kdimsz = itmp ) ; itobcs=itmp(1)
541	ENDIF
542
543	itobc = MAX( itobce, itobcw, itobcn, itobcs )
544	istop = 0
545	IF ( lp_obc_east .AND. itobce /= itobc ) istop = istop+1
546	IF ( lp_obc_west .AND. itobcw /= itobc ) istop = istop+1
547	IF ( lp_obc_north .AND. itobcn /= itobc ) istop = istop+1
548	IF ( lp_obc_south .AND. itobcs /= itobc ) istop = istop+1
549	nstop = nstop + istop
550
551	IF ( istop /= 0 ) THEN
552	WRITE(ctmp1,*) ' east, west, north, south: ', itobce, itobcw, itobcn, itobcs
553	CALL ctl_stop( 'obcdta : all files must have the same number of time steps', ctmp1 )
554	ENDIF
555
556	IF ( itobc == 1 ) THEN
557	IF (lwp) THEN
558	WRITE(numout,*) ' obcdta found one time step only in the OBC files'
559	IF (ln_obc_clim) THEN
560	! OK no problem
561	ELSE
562	ln_obc_clim=.true.
563	WRITE(numout,*) ' we force ln_obc_clim to T'
564	ENDIF
565	ENDIF
566	ELSE
567	IF ( ALLOCATED(ztcobc) ) DEALLOCATE ( ztcobc )
568	ALLOCATE (ztcobc(itobc))
569	DO ji=1,1 ! use a dummy loop to read ztcobc only once
570	IF ( lp_obc_east ) THEN
571	CALL iom_gettime ( id_e, ztcobc, cl_vname ) ; CALL iom_close (id_e) ; EXIT
572	ENDIF
573	IF ( lp_obc_west ) THEN
574	CALL iom_gettime ( id_w, ztcobc, cl_vname ) ; CALL iom_close (id_w) ; EXIT
575	ENDIF
576	IF ( lp_obc_north ) THEN
577	CALL iom_gettime ( id_n, ztcobc, cl_vname ) ; CALL iom_close (id_n) ; EXIT
578	ENDIF
579	IF ( lp_obc_south ) THEN
580	CALL iom_gettime ( id_s, ztcobc, cl_vname ) ; CALL iom_close (id_s) ; EXIT
581	ENDIF
582	END DO
583	rdt_obc = ztcobc(2)-ztcobc(1) ! just an information, not used for any computation
584	IF (lwp) WRITE(numout,*) ' obcdta found', itobc,' time steps in the OBC files'
585	IF (lwp) WRITE(numout,*) ' time step of obc data :', rdt_obc,' days'
586	ENDIF
587	zjcnes = zjcnes - rdt/rday ! trick : zcnes is always incremented by rdt/rday in obc_dta!
588	END SUBROUTINE obc_dta_chktime
589
590	# if defined key_dynspg_ts \|\| defined key_dynspg_exp
591	SUBROUTINE obc_dta_bt( kt, kbt )
592	!!---------------------------------------------------------------------------
593	!! * SUBROUTINE obc_dta *
594	!!
595	!! ** Purpose : time interpolation of barotropic data for time-splitting scheme
596	!! Data at the boundary must be in m2/s
597	!!
598	!! History :
599	!! 9.0 ! 05-11 (V. garnier) Original code
600	!!---------------------------------------------------------------------------
601	!! * Arguments
602	INTEGER, INTENT( in ) :: kt ! ocean time-step index
603	INTEGER, INTENT( in ) :: kbt ! barotropic ocean time-step index
604
605	!! * Local declarations
606	INTEGER :: ji, jj ! dummy loop indices
607	INTEGER :: i15
608	INTEGER :: itobcm, itobcp
609	REAL(wp) :: zxy
610	INTEGER :: isrel ! number of seconds since 1/1/1992
611
612	!!---------------------------------------------------------------------------
613
614	! 1. First call: check time frames available in files.
615	! -------------------------------------------------------
616
617	IF( kt == nit000 ) THEN
618
619	! 1.1 Barotropic tangential velocities set to zero
620	! -------------------------------------------------
621	IF( lp_obc_east ) vbtfoe(:) = 0.e0
622	IF( lp_obc_west ) vbtfow(:) = 0.e0
623	IF( lp_obc_south ) ubtfos(:) = 0.e0
624	IF( lp_obc_north ) ubtfon(:) = 0.e0
625
626	! 1.2 Sea surface height and normal barotropic velocities set to zero
627	! or initial conditions if nobc_dta == 0
628	! --------------------------------------------------------------------
629
630	IF( lp_obc_east ) THEN
631	! initialisation to zero
632	sshedta(:,:) = 0.e0
633	ubtedta(:,:) = 0.e0
634	vbtedta(:,:) = 0.e0 ! tangential component
635	! ! ================== !
636	IF( nobc_dta == 0 ) THEN ! initial state used !
637	! ! ================== !
638	! Fills sedta, tedta, uedta (global arrays)
639	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
640	DO ji = nie0, nie1
641	DO jj = 1, jpj
642	sshedta(jj,1) = sshn(ji+1,jj) * tmask(ji+1,jj,1)
643	END DO
644	END DO
645	ENDIF
646	ENDIF
647
648	IF( lp_obc_west) THEN
649	! initialisation to zero
650	sshwdta(:,:) = 0.e0
651	ubtwdta(:,:) = 0.e0
652	vbtwdta(:,:) = 0.e0 ! tangential component
653	! ! ================== !
654	IF( nobc_dta == 0 ) THEN ! initial state used !
655	! ! ================== !
656	! Fills swdta, twdta, uwdta (global arrays)
657	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
658	DO ji = niw0, niw1
659	DO jj = 1, jpj
660	sshwdta(jj,1) = sshn(ji,jj) * tmask(ji,jj,1)
661	END DO
662	END DO
663	ENDIF
664	ENDIF
665
666	IF( lp_obc_north) THEN
667	! initialisation to zero
668	sshndta(:,:) = 0.e0
669	ubtndta(:,:) = 0.e0 ! tangential component
670	vbtndta(:,:) = 0.e0
671	! ! ================== !
672	IF( nobc_dta == 0 ) THEN ! initial state used !
673	! ! ================== !
674	! Fills sndta, tndta, vndta (global arrays)
675	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
676	DO jj = njn0, njn1
677	DO ji = 1, jpi
678	sshndta(ji,1) = sshn(ji,jj+1) * tmask(ji,jj+1,1)
679	END DO
680	END DO
681	ENDIF
682	ENDIF
683
684	IF( lp_obc_south) THEN
685	! initialisation to zero
686	sshsdta(:,:) = 0.e0
687	ubtsdta(:,:) = 0.e0 ! tangential component
688	vbtsdta(:,:) = 0.e0
689	! ! ================== !
690	IF( nobc_dta == 0 ) THEN ! initial state used !
691	! ! ================== !
692	! Fills ssdta, tsdta, vsdta (global arrays)
693	! Remark: this works for njzoom = 1. Should the definition of ij include njzoom?
694	DO jj = njs0, njs1
695	DO ji = 1, jpi
696	sshsdta(ji,1) = sshn(ji,jj) * tmask(ji,jj,1)
697	END DO
698	END DO
699	ENDIF
700	ENDIF
701
702	IF( nobc_dta == 0 ) CALL obc_depth_average(1) ! depth averaged velocity from the OBC depth-dependent frames
703
704	ENDIF ! END kt == nit000
705
706	!!------------------------------------------------------------------------------------
707	! 2. Initialize the time we are at. Does this every time the routine is called,
708	! excepted when nobc_dta = 0
709	!
710
711	! 3. Call at every time step : Linear interpolation of BCs to current time step
712	! ----------------------------------------------------------------------
713
714	IF( lk_dynspg_ts ) THEN
715	isrel = (kt-1)rdt + kbt(rdt/REAL(nn_baro,wp))
716	ELSE IF( lk_dynspg_exp ) THEN
717	isrel=kt*rdt
718	ENDIF
719
720	itobcm = nt_b
721	itobcp = nt_a
722	IF( itobc == 1 .OR. nobc_dta == 0 ) THEN
723	zxy = 0.e0
724	itobcm = 1
725	itobcp = 1
726	ELSE IF( itobc == 12 ) THEN
727	i15 = nday / 16
728	zxy = FLOAT( nday + 15 - 30 * i15 ) / 30.
729	ELSE
730	zxy = (zjcnes_obc(nt_a)-FLOAT(isrel)) / (zjcnes_obc(nt_a)-zjcnes_obc(nt_b))
731	IF( zxy < 0. ) THEN ! case of extrapolation, switch to old time frames
732	itobcm = nt_m
733	itobcp = nt_b
734	zxy = (zjcnes_obc(nt_b)-FLOAT(isrel)) / (zjcnes_obc(nt_b)-zjcnes_obc(nt_m))
735	ENDIF
736	ENDIF
737
738	IF( lp_obc_east ) THEN ! fills sshfoe, ubtfoe (local to each processor)
739	DO jj = 1, jpj
740	sshfoe(jj) = zxy * sshedta(jj,itobcp) + (1.-zxy) * sshedta(jj,itobcm)
741	ubtfoe(jj) = zxy * ubtedta(jj,itobcp) + (1.-zxy) * ubtedta(jj,itobcm)
742	vbtfoe(jj) = zxy * vbtedta(jj,itobcp) + (1.-zxy) * vbtedta(jj,itobcm)
743	END DO
744	ENDIF
745
746	IF( lp_obc_west) THEN ! fills sshfow, ubtfow (local to each processor)
747	DO jj = 1, jpj
748	sshfow(jj) = zxy * sshwdta(jj,itobcp) + (1.-zxy) * sshwdta(jj,itobcm)
749	ubtfow(jj) = zxy * ubtwdta(jj,itobcp) + (1.-zxy) * ubtwdta(jj,itobcm)
750	vbtfow(jj) = zxy * vbtwdta(jj,itobcp) + (1.-zxy) * vbtwdta(jj,itobcm)
751	END DO
752	ENDIF
753
754	IF( lp_obc_north) THEN ! fills sshfon, vbtfon (local to each processor)
755	DO ji = 1, jpi
756	sshfon(ji) = zxy * sshndta(ji,itobcp) + (1.-zxy) * sshndta(ji,itobcm)
757	ubtfon(ji) = zxy * ubtndta(ji,itobcp) + (1.-zxy) * ubtndta(ji,itobcm)
758	vbtfon(ji) = zxy * vbtndta(ji,itobcp) + (1.-zxy) * vbtndta(ji,itobcm)
759	END DO
760	ENDIF
761
762	IF( lp_obc_south) THEN ! fills sshfos, vbtfos (local to each processor)
763	DO ji = 1, jpi
764	sshfos(ji) = zxy * sshsdta(ji,itobcp) + (1.-zxy) * sshsdta(ji,itobcm)
765	ubtfos(ji) = zxy * ubtsdta(ji,itobcp) + (1.-zxy) * ubtsdta(ji,itobcm)
766	vbtfos(ji) = zxy * vbtsdta(ji,itobcp) + (1.-zxy) * vbtsdta(ji,itobcm)
767	END DO
768	ENDIF
769
770	END SUBROUTINE obc_dta_bt
771
772	# else
773	!!-----------------------------------------------------------------------------
774	!! Default option
775	!!-----------------------------------------------------------------------------
776	SUBROUTINE obc_dta_bt ( kt, kbt ) ! Empty routine
777	!! * Arguments
778	INTEGER,INTENT(in) :: kt
779	INTEGER, INTENT( in ) :: kbt ! barotropic ocean time-step index
780	WRITE(,) 'obc_dta_bt: You should not have seen this print! error?', kt
781	WRITE(,) 'obc_dta_bt: You should not have seen this print! error?', kbt
782	END SUBROUTINE obc_dta_bt
783	# endif
784
785	SUBROUTINE obc_read (kt, nt_x, ntobc_x, iyy, imm)
786	!!-------------------------------------------------------------------------
787	!! * ROUTINE obc_read *
788	!!
789	!! ** Purpose : Read the boundary data in files identified by iyy and imm
790	!! According to the validated open boundaries, return the
791	!! following arrays :
792	!! sedta, tedta : East OBC salinity and temperature
793	!! uedta, vedta : " " u and v velocity component
794	!!
795	!! swdta, twdta : West OBC salinity and temperature
796	!! uwdta, vwdta : " " u and v velocity component
797	!!
798	!! sndta, tndta : North OBC salinity and temperature
799	!! undta, vndta : " " u and v velocity component
800	!!
801	!! ssdta, tsdta : South OBC salinity and temperature
802	!! usdta, vsdta : " " u and v velocity component
803	!!
804	!! ** Method : These fields are read in the record ntobc_x of the files.
805	!! The number of records is already known. If ntobc_x is greater
806	!! than the number of record, this routine will look for next file,
807	!! updating the indices (case of inter-annual obcs) or loop at the
808	!! begining in case of climatological file (ln_obc_clim = true ).
809	!! -------------------------------------------------------------------------
810	!! History: ! 2005 ( P. Mathiot, C. Langlais ) Original code
811	!! ! 2008 ( J,M, Molines ) Use IOM and cleaning
812	!!--------------------------------------------------------------------------
813
814	! * Arguments
815	INTEGER, INTENT( in ) :: kt, nt_x
816	INTEGER, INTENT( inout ) :: ntobc_x , iyy, imm ! yes ! inout !
817
818	! * Local variables
819	CHARACTER (len=40) :: & ! file names
820	cl_obc_eTS , cl_obc_eU, cl_obc_eV,&
821	cl_obc_wTS , cl_obc_wU, cl_obc_wV,&
822	cl_obc_nTS , cl_obc_nU, cl_obc_nV,&
823	cl_obc_sTS , cl_obc_sU, cl_obc_sV
824
825	INTEGER :: ikprint
826	REAL(wp) :: zmin, zmax ! control of boundary values
827
828	!IOM stuff
829	INTEGER :: id_e, id_w, id_n, id_s
830	INTEGER, DIMENSION(2) :: istart, icount
831
832	!--------------------------------------------------------------------------
833	IF ( ntobc_x > itobc ) THEN
834	IF (ln_obc_clim) THEN ! just loop on the same file
835	ntobc_x = 1
836	ELSE
837	! need to change file : it is always for an 'after' data
838	IF ( cffile == 'annual' ) THEN ! go to next year file
839	iyy = iyy + 1
840	ELSE IF ( cffile =='monthly' ) THEN ! go to next month file
841	imm = imm + 1
842	IF ( imm == 13 ) THEN
843	imm = 1 ; iyy = iyy + 1
844	ENDIF
845	ELSE
846	ctmp1='obcread : this type of obc file is not supported :( '
847	ctmp2=TRIM(cffile)
848	CALL ctl_stop (ctmp1, ctmp2)
849	! cffile should be either annual or monthly ...
850	ENDIF
851	! as the file is changed, need to update itobc etc ...
852	CALL obc_dta_chktime (iyy,imm)
853	ntobc_x = nrecbef() + 1 ! remember : this case occur for an after data
854	ENDIF
855	ENDIF
856
857	IF( lp_obc_east ) THEN
858	! ... Read datafile and set temperature, salinity and normal velocity
859	! ... initialise the sedta, tedta, uedta arrays
860	IF(ln_obc_clim) THEN ! revert to old convention for climatological OBC forcing
861	cl_obc_eTS='obceast_TS.nc'
862	cl_obc_eU ='obceast_U.nc'
863	cl_obc_eV ='obceast_V.nc'
864	ELSE ! convention for climatological OBC
865	WRITE(cl_obc_eTS ,'("obc_east_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
866	WRITE(cl_obc_eU ,'("obc_east_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
867	WRITE(cl_obc_eV ,'("obc_east_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
868	ENDIF
869	! JMM this may change depending on the obc data format ...
870	istart(:)=(/nje0+njmpp-1,1/) ; icount(:)=(/nje1-nje0 +1,jpk/)
871	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_eTS)
872	IF (nje1 >= nje0 ) THEN
873	CALL iom_open ( cl_obc_eTS , id_e )
874	CALL iom_get ( id_e, jpdom_unknown, 'votemper', tedta(nje0:nje1,:,nt_x), &
875	& ktime=ntobc_x , kstart=istart, kcount= icount )
876	CALL iom_get ( id_e, jpdom_unknown, 'vosaline', sedta(nje0:nje1,:,nt_x), &
877	& ktime=ntobc_x , kstart=istart, kcount= icount )
878	# if defined key_dynspg_ts \|\| defined key_dynspg_exp
879	CALL iom_get ( id_e, jpdom_unknown, 'vossurfh', sshedta(nje0:nje1,nt_x), &
880	& ktime=ntobc_x , kstart=istart, kcount= icount )
881	# endif
882	CALL iom_close (id_e)
883	!
884	CALL iom_open ( cl_obc_eU , id_e )
885	CALL iom_get ( id_e, jpdom_unknown, 'vozocrtx', uedta(nje0:nje1,:,nt_x), &
886	& ktime=ntobc_x , kstart=istart, kcount= icount )
887	CALL iom_close ( id_e )
888	!
889	CALL iom_open ( cl_obc_eV , id_e )
890	CALL iom_get ( id_e, jpdom_unknown, 'vomecrty', vedta(nje0:nje1,:,nt_x), &
891	& ktime=ntobc_x , kstart=istart, kcount= icount )
892	CALL iom_close ( id_e )
893
894	! mask the boundary values
895	tedta(:,:,nt_x) = tedta(:,:,nt_x)temsk(:,:) ; sedta(:,:,nt_x) = sedta(:,:,nt_x)temsk(:,:)
896	uedta(:,:,nt_x) = uedta(:,:,nt_x)uemsk(:,:) ; vedta(:,:,nt_x) = vedta(:,:,nt_x)vemsk(:,:)
897
898	! check any outliers
899	zmin=MINVAL( sedta(:,:,nt_x), mask=ltemsk ) ; zmax=MAXVAL(sedta(:,:,nt_x), mask=ltemsk)
900	IF ( zmin < 5 .OR. zmax > 50) THEN
901	CALL ctl_stop('Error in sedta',' routine obcdta')
902	ENDIF
903	zmin=MINVAL( tedta(:,:,nt_x), mask=ltemsk ) ; zmax=MAXVAL(tedta(:,:,nt_x), mask=ltemsk)
904	IF ( zmin < -10. .OR. zmax > 40) THEN
905	CALL ctl_stop('Error in tedta',' routine obcdta')
906	ENDIF
907	zmin=MINVAL( uedta(:,:,nt_x), mask=luemsk ) ; zmax=MAXVAL(uedta(:,:,nt_x), mask=luemsk)
908	IF ( zmin < -5. .OR. zmax > 5.) THEN
909	CALL ctl_stop('Error in uedta',' routine obcdta')
910	ENDIF
911	zmin=MINVAL( vedta(:,:,nt_x), mask=lvemsk ) ; zmax=MAXVAL(vedta(:,:,nt_x), mask=lvemsk)
912	IF ( zmin < -5. .OR. zmax > 5.) THEN
913	CALL ctl_stop('Error in vedta',' routine obcdta')
914	ENDIF
915
916	! Usually printout is done only once at kt = nit000, unless nprint (namelist) > 1
917	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
918	WRITE(numout,*)
919	WRITE(numout,*) ' Read East OBC data records ', ntobc_x
920	ikprint = jpj/20 +1
921	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
922	CALL prihre( tedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
923	WRITE(numout,*)
924	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
925	CALL prihre( sedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
926	WRITE(numout,*)
927	WRITE(numout,*) ' Normal velocity U record 1 - printout every 3 level'
928	CALL prihre( uedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
929	WRITE(numout,*)
930	WRITE(numout,*) ' Tangential velocity V record 1 - printout every 3 level'
931	CALL prihre( vedta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
932	ENDIF
933	ENDIF
934	ENDIF
935	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
936	IF ( lp_obc_west ) THEN
937	! ... Read datafile and set temperature, salinity and normal velocity
938	! ... initialise the swdta, twdta, uwdta arrays
939	IF (ln_obc_clim) THEN ! revert to old convention for climatological OBC forcing
940	cl_obc_wTS='obcwest_TS.nc'
941	cl_obc_wU ='obcwest_U.nc'
942	cl_obc_wV ='obcwest_V.nc'
943	ELSE ! convention for climatological OBC
944	WRITE(cl_obc_wTS ,'("obc_west_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
945	WRITE(cl_obc_wU ,'("obc_west_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
946	WRITE(cl_obc_wV ,'("obc_west_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
947	ENDIF
948	istart(:)=(/njw0+njmpp-1,1/) ; icount(:)=(/njw1-njw0 +1,jpk/)
949	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_wTS)
950
951	IF ( njw1 >= njw0 ) THEN
952	CALL iom_open ( cl_obc_wTS , id_w )
953	CALL iom_get ( id_w, jpdom_unknown, 'votemper', twdta(njw0:njw1,:,nt_x), &
954	& ktime=ntobc_x , kstart=istart, kcount= icount )
955
956	CALL iom_get ( id_w, jpdom_unknown, 'vosaline', swdta(njw0:njw1,:,nt_x), &
957	& ktime=ntobc_x , kstart=istart, kcount= icount)
958	# if defined key_dynspg_ts \|\| defined key_dynspg_exp
959	CALL iom_get ( id_w, jpdom_unknown, 'vossurfh', sshwdta(njw0:njw1,nt_x), &
960	& ktime=ntobc_x , kstart=istart, kcount= icount )
961	# endif
962	CALL iom_close (id_w)
963	!
964	CALL iom_open ( cl_obc_wU , id_w )
965	CALL iom_get ( id_w, jpdom_unknown, 'vozocrtx', uwdta(njw0:njw1,:,nt_x),&
966	& ktime=ntobc_x , kstart=istart, kcount= icount )
967	CALL iom_close ( id_w )
968	!
969	CALL iom_open ( cl_obc_wV , id_w )
970	CALL iom_get ( id_w, jpdom_unknown, 'vomecrty', vwdta(njw0:njw1,:,nt_x), &
971	& ktime=ntobc_x , kstart=istart, kcount= icount )
972	CALL iom_close ( id_w )
973
974	! mask the boundary values
975	twdta(:,:,nt_x) = twdta(:,:,nt_x)twmsk(:,:) ; swdta(:,:,nt_x) = swdta(:,:,nt_x)twmsk(:,:)
976	uwdta(:,:,nt_x) = uwdta(:,:,nt_x)uwmsk(:,:) ; vwdta(:,:,nt_x) = vwdta(:,:,nt_x)vwmsk(:,:)
977
978	! check any outliers
979	zmin=MINVAL( swdta(:,:,nt_x), mask=ltwmsk ) ; zmax=MAXVAL(swdta(:,:,nt_x), mask=ltwmsk)
980	IF ( zmin < 5 .OR. zmax > 50) THEN
981	CALL ctl_stop('Error in swdta',' routine obcdta')
982	ENDIF
983	zmin=MINVAL( twdta(:,:,nt_x), mask=ltwmsk ) ; zmax=MAXVAL(twdta(:,:,nt_x), mask=ltwmsk)
984	IF ( zmin < -10. .OR. zmax > 40) THEN
985	CALL ctl_stop('Error in twdta',' routine obcdta')
986	ENDIF
987	zmin=MINVAL( uwdta(:,:,nt_x), mask=luwmsk ) ; zmax=MAXVAL(uwdta(:,:,nt_x), mask=luwmsk)
988	IF ( zmin < -5. .OR. zmax > 5.) THEN
989	CALL ctl_stop('Error in uwdta',' routine obcdta')
990	ENDIF
991	zmin=MINVAL( vwdta(:,:,nt_x), mask=lvwmsk ) ; zmax=MAXVAL(vwdta(:,:,nt_x), mask=lvwmsk)
992	IF ( zmin < -5. .OR. zmax > 5.) THEN
993	CALL ctl_stop('Error in vwdta',' routine obcdta')
994	ENDIF
995
996
997	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
998	WRITE(numout,*)
999	WRITE(numout,*) ' Read West OBC data records ', ntobc_x
1000	ikprint = jpj/20 +1
1001	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1002	CALL prihre( twdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1003	WRITE(numout,*)
1004	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1005	CALL prihre( swdta(:,:,nt_x),jpj,jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1006	WRITE(numout,*)
1007	WRITE(numout,*) ' Normal velocity U record 1 - printout every 3 level'
1008	CALL prihre( uwdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1009	WRITE(numout,*)
1010	WRITE(numout,*) ' Tangential velocity V record 1 - printout every 3 level'
1011	CALL prihre( vwdta(:,:,nt_x), jpj, jpk, 1, jpj, ikprint, jpk, 1, -3, 1., numout )
1012	ENDIF
1013	END IF
1014	ENDIF
1015	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1016	IF( lp_obc_north) THEN
1017	IF(ln_obc_clim) THEN ! revert to old convention for climatological OBC forcing
1018	cl_obc_nTS='obcnorth_TS.nc'
1019	cl_obc_nU ='obcnorth_U.nc'
1020	cl_obc_nV ='obcnorth_V.nc'
1021	ELSE ! convention for climatological OBC
1022	WRITE(cl_obc_nTS ,'("obc_north_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1023	WRITE(cl_obc_nV ,'("obc_north_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1024	WRITE(cl_obc_nU ,'("obc_north_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1025	ENDIF
1026	istart(:)=(/nin0+nimpp-1,1/) ; icount(:)=(/nin1-nin0 +1,jpk/)
1027	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_nTS)
1028	IF ( nin1 >= nin0 ) THEN
1029	CALL iom_open ( cl_obc_nTS , id_n )
1030	CALL iom_get ( id_n, jpdom_unknown, 'votemper', tndta(nin0:nin1,:,nt_x), &
1031	& ktime=ntobc_x , kstart=istart, kcount= icount )
1032	CALL iom_get ( id_n, jpdom_unknown, 'vosaline', sndta(nin0:nin1,:,nt_x), &
1033	& ktime=ntobc_x , kstart=istart, kcount= icount )
1034	# if defined key_dynspg_ts \|\| defined key_dynspg_exp
1035	CALL iom_get ( id_n, jpdom_unknown, 'vossurfh', sshndta(nin0:nin1,nt_x), &
1036	& ktime=ntobc_x , kstart=istart, kcount= icount )
1037	# endif
1038	CALL iom_close (id_n)
1039	!
1040	CALL iom_open ( cl_obc_nU , id_n )
1041	CALL iom_get ( id_n, jpdom_unknown, 'vozocrtx', undta(nin0:nin1,:,nt_x), &
1042	& ktime=ntobc_x , kstart=istart, kcount= icount )
1043	CALL iom_close ( id_n )
1044	!
1045	CALL iom_open ( cl_obc_nV , id_n )
1046	CALL iom_get ( id_n, jpdom_unknown, 'vomecrty', vndta(nin0:nin1,:,nt_x), &
1047	& ktime=ntobc_x , kstart=istart, kcount= icount )
1048	CALL iom_close ( id_n )
1049
1050	! mask the boundary values
1051	tndta(:,:,nt_x) = tndta(:,:,nt_x)tnmsk(:,:) ; sndta(:,:,nt_x) = sndta(:,:,nt_x)tnmsk(:,:)
1052	undta(:,:,nt_x) = undta(:,:,nt_x)unmsk(:,:) ; vndta(:,:,nt_x) = vndta(:,:,nt_x)vnmsk(:,:)
1053
1054	! check any outliers
1055	zmin=MINVAL( sndta(:,:,nt_x), mask=ltnmsk ) ; zmax=MAXVAL(sndta(:,:,nt_x), mask=ltnmsk)
1056	IF ( zmin < 5 .OR. zmax > 50) THEN
1057	CALL ctl_stop('Error in sndta',' routine obcdta')
1058	ENDIF
1059	zmin=MINVAL( tndta(:,:,nt_x), mask=ltnmsk ) ; zmax=MAXVAL(tndta(:,:,nt_x), mask=ltnmsk)
1060	IF ( zmin < -10. .OR. zmax > 40) THEN
1061	CALL ctl_stop('Error in tndta',' routine obcdta')
1062	ENDIF
1063	zmin=MINVAL( undta(:,:,nt_x), mask=lunmsk ) ; zmax=MAXVAL(undta(:,:,nt_x), mask=lunmsk)
1064	IF ( zmin < -5. .OR. zmax > 5.) THEN
1065	CALL ctl_stop('Error in undta',' routine obcdta')
1066	ENDIF
1067	zmin=MINVAL( vndta(:,:,nt_x), mask=lvnmsk ) ; zmax=MAXVAL(vndta(:,:,nt_x), mask=lvnmsk)
1068	IF ( zmin < -5. .OR. zmax > 5.) THEN
1069	CALL ctl_stop('Error in vndta',' routine obcdta')
1070	ENDIF
1071
1072	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1073	WRITE(numout,*)
1074	WRITE(numout,*) ' Read North OBC data records ', ntobc_x
1075	ikprint = jpi/20 +1
1076	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1077	CALL prihre( tndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1078	WRITE(numout,*)
1079	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1080	CALL prihre( sndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1081	WRITE(numout,*)
1082	WRITE(numout,*) ' Normal velocity V record 1 - printout every 3 level'
1083	CALL prihre( vndta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1084	WRITE(numout,*)
1085	WRITE(numout,*) ' Tangential velocity U record 1 - printout every 3 level'
1086	CALL prihre( undta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1087	ENDIF
1088	ENDIF
1089	ENDIF
1090	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1091	IF( lp_obc_south) THEN
1092	IF(ln_obc_clim) THEN ! revert to old convention for climatological OBC forcing
1093	cl_obc_sTS='obcsouth_TS.nc'
1094	cl_obc_sU ='obcsouth_U.nc'
1095	cl_obc_sV ='obcsouth_V.nc'
1096	ELSE ! convention for climatological OBC
1097	WRITE(cl_obc_sTS ,'("obc_south_TS_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1098	WRITE(cl_obc_sV ,'("obc_south_V_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1099	WRITE(cl_obc_sU ,'("obc_south_U_y" ,i4.4,"m",i2.2,".nc")' ) iyy,imm
1100	ENDIF
1101	istart(:)=(/nis0+nimpp-1,1/) ; icount(:)=(/nis1-nis0 +1,jpk/)
1102	IF (lwp) WRITE(numout,*) 'read data in :', TRIM(cl_obc_sTS)
1103	IF ( nis1 >= nis0 ) THEN
1104	CALL iom_open ( cl_obc_sTS , id_s )
1105	CALL iom_get ( id_s, jpdom_unknown, 'votemper', tsdta(nis0:nis1,:,nt_x), &
1106	& ktime=ntobc_x , kstart=istart, kcount= icount )
1107	CALL iom_get ( id_s, jpdom_unknown, 'vosaline', ssdta(nis0:nis1,:,nt_x), &
1108	& ktime=ntobc_x , kstart=istart, kcount= icount )
1109	# if defined key_dynspg_ts \|\| defined key_dynspg_exp
1110	CALL iom_get ( id_s, jpdom_unknown, 'vossurfh', sshsdta(nis0:nis1,nt_x), &
1111	& ktime=ntobc_x , kstart=istart, kcount= icount )
1112	# endif
1113	CALL iom_close (id_s)
1114	!
1115	CALL iom_open ( cl_obc_sU , id_s )
1116	CALL iom_get ( id_s, jpdom_unknown, 'vozocrtx', usdta(nis0:nis1,:,nt_x), &
1117	& ktime=ntobc_x , kstart=istart, kcount= icount )
1118	CALL iom_close ( id_s )
1119	!
1120	CALL iom_open ( cl_obc_sV , id_s )
1121	CALL iom_get ( id_s, jpdom_unknown, 'vomecrty', vsdta(nis0:nis1,:,nt_x), &
1122	& ktime=ntobc_x , kstart=istart, kcount= icount )
1123	CALL iom_close ( id_s )
1124
1125	! mask the boundary values
1126	tsdta(:,:,nt_x) = tsdta(:,:,nt_x)tsmsk(:,:) ; ssdta(:,:,nt_x) = ssdta(:,:,nt_x)tsmsk(:,:)
1127	usdta(:,:,nt_x) = usdta(:,:,nt_x)usmsk(:,:) ; vsdta(:,:,nt_x) = vsdta(:,:,nt_x)vsmsk(:,:)
1128
1129	! check any outliers
1130	zmin=MINVAL( ssdta(:,:,nt_x), mask=ltsmsk ) ; zmax=MAXVAL(ssdta(:,:,nt_x), mask=ltsmsk)
1131	IF ( zmin < 5 .OR. zmax > 50) THEN
1132	CALL ctl_stop('Error in ssdta',' routine obcdta')
1133	ENDIF
1134	zmin=MINVAL( tsdta(:,:,nt_x), mask=ltsmsk ) ; zmax=MAXVAL(tsdta(:,:,nt_x), mask=ltsmsk)
1135	IF ( zmin < -10. .OR. zmax > 40) THEN
1136	CALL ctl_stop('Error in tsdta',' routine obcdta')
1137	ENDIF
1138	zmin=MINVAL( usdta(:,:,nt_x), mask=lusmsk ) ; zmax=MAXVAL(usdta(:,:,nt_x), mask=lusmsk)
1139	IF ( zmin < -5. .OR. zmax > 5.) THEN
1140	CALL ctl_stop('Error in usdta',' routine obcdta')
1141	ENDIF
1142	zmin=MINVAL( vsdta(:,:,nt_x), mask=lvsmsk ) ; zmax=MAXVAL(vsdta(:,:,nt_x), mask=lvsmsk)
1143	IF ( zmin < -5. .OR. zmax > 5.) THEN
1144	CALL ctl_stop('Error in vsdta',' routine obcdta')
1145	ENDIF
1146
1147	IF ( lwp .AND. ( kt == nit000 .OR. nprint /= 0 ) ) THEN
1148	WRITE(numout,*)
1149	WRITE(numout,*) ' Read South OBC data records ', ntobc_x
1150	ikprint = jpi/20 +1
1151	WRITE(numout,*) ' Temperature record 1 - printout every 3 level'
1152	CALL prihre( tsdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1153	WRITE(numout,*)
1154	WRITE(numout,*) ' Salinity record 1 - printout every 3 level'
1155	CALL prihre( ssdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1156	WRITE(numout,*)
1157	WRITE(numout,*) ' Normal velocity V record 1 - printout every 3 level'
1158	CALL prihre( vsdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1159	WRITE(numout,*)
1160	WRITE(numout,*) ' Tangential velocity U record 1 - printout every 3 level'
1161	CALL prihre( usdta(:,:,nt_x), jpi, jpk, 1, jpi, ikprint, jpk, 1, -3, 1., numout )
1162	ENDIF
1163	ENDIF
1164	ENDIF
1165
1166	# if defined key_dynspg_ts \|\| defined key_dynspg_exp
1167	CALL obc_depth_average(nt_x) ! computation of depth-averaged velocity
1168	# endif
1169
1170	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1171	END SUBROUTINE obc_read
1172
1173	INTEGER FUNCTION nrecbef()
1174	!!-----------------------------------------------------------------------
1175	!! * FUNCTION nrecbef *
1176	!!
1177	!! Purpose : - provide the before record number in files, with respect to zjcnes
1178	!!
1179	!! History : 2008-04 : ( J.M. Molines ) Original code
1180	!!-----------------------------------------------------------------------
1181
1182	INTEGER :: it , idum
1183
1184	idum = itobc
1185	DO it =1, itobc
1186	IF ( ztcobc(it) > zjcnes ) THEN ; idum = it - 1 ; EXIT ; ENDIF
1187	ENDDO
1188	! idum can be 0 (climato, before first record)
1189	IF ( idum == 0 ) THEN
1190	IF ( ln_obc_clim ) THEN
1191	idum = itobc
1192	ELSE
1193	ctmp1='obc_dta: find ntobc == 0 for non climatological file '
1194	ctmp2='consider adding a first record in your data file '
1195	CALL ctl_stop(ctmp1, ctmp2)
1196	ENDIF
1197	ENDIF
1198	! idum can be itobc ( zjcnes > ztcobc (itobc) )
1199	! This is not a problem ...
1200	nrecbef = idum
1201
1202	END FUNCTION nrecbef
1203
1204	!!==============================================================================
1205	SUBROUTINE obc_depth_average(nt_x)
1206	!!-----------------------------------------------------------------------
1207	!! * ROUTINE obc_depth_average *
1208	!!
1209	!! Purpose : - compute the depth-averaged velocity from depth-dependent OBC frames
1210	!!
1211	!! History : 2009-01 : ( Fred Dupont ) Original code
1212	!!-----------------------------------------------------------------------
1213
1214	! * Arguments
1215	INTEGER, INTENT( in ) :: nt_x
1216
1217	! * Local variables
1218	INTEGER :: ji, jj, jk
1219
1220
1221	IF( lp_obc_east ) THEN
1222	! initialisation to zero
1223	ubtedta(:,nt_x) = 0.e0
1224	vbtedta(:,nt_x) = 0.e0
1225	DO ji = nie0, nie1
1226	DO jj = 1, jpj
1227	DO jk = 1, jpkm1
1228	ubtedta(jj,nt_x) = ubtedta(jj,nt_x) + uedta(jj,jk,nt_x)*fse3u(ji,jj,jk)
1229	vbtedta(jj,nt_x) = vbtedta(jj,nt_x) + vedta(jj,jk,nt_x)*fse3v(ji+1,jj,jk)
1230	END DO
1231	END DO
1232	END DO
1233	ENDIF
1234
1235	IF( lp_obc_west) THEN
1236	! initialisation to zero
1237	ubtwdta(:,nt_x) = 0.e0
1238	vbtwdta(:,nt_x) = 0.e0
1239	DO ji = niw0, niw1
1240	DO jj = 1, jpj
1241	DO jk = 1, jpkm1
1242	ubtwdta(jj,nt_x) = ubtwdta(jj,nt_x) + uwdta(jj,jk,1)*fse3u(ji,jj,jk)
1243	vbtwdta(jj,nt_x) = vbtwdta(jj,nt_x) + vwdta(jj,jk,1)*fse3v(ji,jj,jk)
1244	END DO
1245	END DO
1246	END DO
1247	ENDIF
1248
1249	IF( lp_obc_north) THEN
1250	! initialisation to zero
1251	ubtndta(:,nt_x) = 0.e0
1252	vbtndta(:,nt_x) = 0.e0
1253	DO jj = njn0, njn1
1254	DO ji = 1, jpi
1255	DO jk = 1, jpkm1
1256	ubtndta(ji,nt_x) = ubtndta(ji,nt_x) + undta(ji,jk,nt_x)*fse3u(ji,jj+1,jk)
1257	vbtndta(ji,nt_x) = vbtndta(ji,nt_x) + vndta(ji,jk,nt_x)*fse3v(ji,jj,jk)
1258	END DO
1259	END DO
1260	END DO
1261	ENDIF
1262
1263	IF( lp_obc_south) THEN
1264	! initialisation to zero
1265	ubtsdta(:,nt_x) = 0.e0
1266	vbtsdta(:,nt_x) = 0.e0
1267	DO jj = njs0, njs1
1268	DO ji = nis0, nis1
1269	DO jk = 1, jpkm1
1270	ubtsdta(ji,nt_x) = ubtsdta(ji,nt_x) + usdta(ji,jk,nt_x)*fse3u(ji,jj,jk)
1271	vbtsdta(ji,nt_x) = vbtsdta(ji,nt_x) + vsdta(ji,jk,nt_x)*fse3v(ji,jj,jk)
1272	END DO
1273	END DO
1274	END DO
1275	ENDIF
1276
1277	END SUBROUTINE obc_depth_average
1278
1279	#else
1280	!!------------------------------------------------------------------------------
1281	!! default option: Dummy module NO Open Boundary Conditions
1282	!!------------------------------------------------------------------------------
1283	CONTAINS
1284	SUBROUTINE obc_dta( kt ) ! Dummy routine
1285	INTEGER, INTENT (in) :: kt
1286	WRITE(,) 'obc_dta: You should not have seen this print! error?', kt
1287	END SUBROUTINE obc_dta
1288	#endif
1289	END MODULE obcdta

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