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bdyini.F90 @ 6948

Last change on this file since 6948 was 6948, checked in by jamesharle, 8 years ago
updated masking code in bdyini.F90 and dommsk.F90 to properly account for bdy_msk
Property svn:keywords set to `Id`
File size: 82.1 KB

Line
1	MODULE bdyini
2	!!======================================================================
3	!! * MODULE bdyini *
4	!! Unstructured open boundaries : initialisation
5	!!======================================================================
6	!! History : 1.0 ! 2005-01 (J. Chanut, A. Sellar) Original code
7	!! - ! 2007-01 (D. Storkey) Update to use IOM module
8	!! - ! 2007-01 (D. Storkey) Tidal forcing
9	!! 3.0 ! 2008-04 (NEMO team) add in the reference version
10	!! 3.3 ! 2010-09 (E.O'Dea) updates for Shelf configurations
11	!! 3.3 ! 2010-09 (D.Storkey) add ice boundary conditions
12	!! 3.4 ! 2011 (D. Storkey) rewrite in preparation for OBC-BDY merge
13	!! 3.4 ! 2012 (J. Chanut) straight open boundary case update
14	!! 3.5 ! 2012 (S. Mocavero, I. Epicoco) Updates for the
15	!! optimization of BDY communications
16	!!----------------------------------------------------------------------
17	#if defined key_bdy
18	!!----------------------------------------------------------------------
19	!! 'key_bdy' Unstructured Open Boundary Conditions
20	!!----------------------------------------------------------------------
21	!! bdy_init : Initialization of unstructured open boundaries
22	!!----------------------------------------------------------------------
23	USE wrk_nemo ! Memory Allocation
24	USE timing ! Timing
25	USE oce ! ocean dynamics and tracers variables
26	USE dom_oce ! ocean space and time domain
27	USE bdy_oce ! unstructured open boundary conditions
28	USE in_out_manager ! I/O units
29	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
30	USE lib_mpp ! for mpp_sum
31	USE iom ! I/O
32	USE sbctide, ONLY: lk_tide ! Tidal forcing or not
33	USE phycst, ONLY: rday
34
35	IMPLICIT NONE
36	PRIVATE
37
38	PUBLIC bdy_init ! routine called in nemo_init
39
40	INTEGER, PARAMETER :: jp_nseg = 100
41	INTEGER, PARAMETER :: nrimmax = 20 ! maximum rimwidth in structured
42	! open boundary data files
43	! Straight open boundary segment parameters:
44	INTEGER :: nbdysege, nbdysegw, nbdysegn, nbdysegs
45	INTEGER, DIMENSION(jp_nseg) :: jpieob, jpjedt, jpjeft, npckge
46	INTEGER, DIMENSION(jp_nseg) :: jpiwob, jpjwdt, jpjwft, npckgw
47	INTEGER, DIMENSION(jp_nseg) :: jpjnob, jpindt, jpinft, npckgn
48	INTEGER, DIMENSION(jp_nseg) :: jpjsob, jpisdt, jpisft, npckgs
49	!!----------------------------------------------------------------------
50	!! NEMO/OPA 4.0 , NEMO Consortium (2011)
51	!! $Id$
52	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
53	!!----------------------------------------------------------------------
54	CONTAINS
55
56	SUBROUTINE bdy_init
57	!!----------------------------------------------------------------------
58	!! * ROUTINE bdy_init *
59	!!
60	!! ** Purpose : Initialization of the dynamics and tracer fields with
61	!! unstructured open boundaries.
62	!!
63	!! ** Method : Read initialization arrays (mask, indices) to identify
64	!! an unstructured open boundary
65	!!
66	!! ** Input : bdy_init.nc, input file for unstructured open boundaries
67	!!----------------------------------------------------------------------
68	! namelist variables
69	!-------------------
70	CHARACTER(LEN=80),DIMENSION(jpbgrd) :: clfile
71	CHARACTER(LEN=1) :: ctypebdy
72	INTEGER :: nbdyind, nbdybeg, nbdyend
73
74	! local variables
75	!-------------------
76	INTEGER :: ib_bdy, ii, ij, ik, igrd, ib, ir, iseg ! dummy loop indices
77	INTEGER :: icount, icountr, ibr_max, ilen1, ibm1 ! local integers
78	INTEGER :: iwe, ies, iso, ino, inum, id_dummy ! - -
79	INTEGER :: igrd_start, igrd_end, jpbdta ! - -
80	INTEGER :: jpbdtau, jpbdtas ! - -
81	INTEGER :: ib_bdy1, ib_bdy2, ib1, ib2 ! - -
82	INTEGER :: i_offset, j_offset ! - -
83	INTEGER, POINTER :: nbi, nbj, nbr ! short cuts
84	REAL(wp), POINTER :: flagu, flagv ! - -
85	REAL(wp), POINTER, DIMENSION(:,:) :: pmask ! pointer to 2D mask fields
86	REAL(wp) :: zefl, zwfl, znfl, zsfl ! local scalars
87	INTEGER, DIMENSION (2) :: kdimsz
88	INTEGER, DIMENSION(jpbgrd,jp_bdy) :: nblendta ! Length of index arrays
89	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbidta, nbjdta ! Index arrays: i and j indices of bdy dta
90	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbrdta ! Discrete distance from rim points
91	CHARACTER(LEN=1),DIMENSION(jpbgrd) :: cgrid
92	INTEGER :: com_east, com_west, com_south, com_north ! Flags for boundaries sending
93	INTEGER :: com_east_b, com_west_b, com_south_b, com_north_b ! Flags for boundaries receiving
94	INTEGER :: iw_b(4), ie_b(4), is_b(4), in_b(4) ! Arrays for neighbours coordinates
95	REAL(wp), POINTER, DIMENSION(:,:) :: zfmask ! temporary fmask array excluding coastal boundary condition (shlat)
96
97	!!
98	NAMELIST/nambdy/ nb_bdy, ln_coords_file, cn_coords_file, &
99	& ln_mask_file, cn_mask_file, cn_dyn2d, nn_dyn2d_dta, &
100	& cn_dyn3d, nn_dyn3d_dta, cn_tra, nn_tra_dta, &
101	& ln_tra_dmp, ln_dyn3d_dmp, rn_time_dmp, rn_time_dmp_out, &
102	& cn_ice_lim, nn_ice_lim_dta, &
103	& rn_ice_tem, rn_ice_sal, rn_ice_age, &
104	& ln_vol, nn_volctl, nn_rimwidth
105	!!
106	NAMELIST/nambdy_index/ ctypebdy, nbdyind, nbdybeg, nbdyend
107	INTEGER :: ios ! Local integer output status for namelist read
108	!!----------------------------------------------------------------------
109
110	IF( nn_timing == 1 ) CALL timing_start('bdy_init')
111
112	IF(lwp) WRITE(numout,*)
113	IF(lwp) WRITE(numout,*) 'bdy_init : initialization of open boundaries'
114	IF(lwp) WRITE(numout,*) '~~~~~~~~'
115	!
116
117	IF( jperio /= 0 ) CALL ctl_stop( 'Cyclic or symmetric,', &
118	& ' and general open boundary condition are not compatible' )
119
120	cgrid= (/'t','u','v'/)
121
122	! ------------------------
123	! Read namelist parameters
124	! ------------------------
125
126	REWIND( numnam_ref ) ! Namelist nambdy in reference namelist :Unstructured open boundaries
127	READ ( numnam_ref, nambdy, IOSTAT = ios, ERR = 901)
128	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in reference namelist', lwp )
129
130	REWIND( numnam_cfg ) ! Namelist nambdy in configuration namelist :Unstructured open boundaries
131	READ ( numnam_cfg, nambdy, IOSTAT = ios, ERR = 902 )
132	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in configuration namelist', lwp )
133	IF(lwm) WRITE ( numond, nambdy )
134
135	! -----------------------------------------
136	! Check and write out namelist parameters
137	! -----------------------------------------
138	! ! control prints
139	IF(lwp) WRITE(numout,*) ' nambdy'
140
141	IF( nb_bdy .eq. 0 ) THEN
142	IF(lwp) WRITE(numout,*) 'nb_bdy = 0, NO OPEN BOUNDARIES APPLIED.'
143	ELSE
144	IF(lwp) WRITE(numout,*) 'Number of open boundary sets : ',nb_bdy
145	ENDIF
146
147	DO ib_bdy = 1,nb_bdy
148	IF(lwp) WRITE(numout,*) ' '
149	IF(lwp) WRITE(numout,*) '------ Open boundary data set ',ib_bdy,'------'
150
151	IF( ln_coords_file(ib_bdy) ) THEN
152	IF(lwp) WRITE(numout,*) 'Boundary definition read from file '//TRIM(cn_coords_file(ib_bdy))
153	ELSE
154	IF(lwp) WRITE(numout,*) 'Boundary defined in namelist.'
155	ENDIF
156	IF(lwp) WRITE(numout,*)
157
158	IF(lwp) WRITE(numout,*) 'Boundary conditions for barotropic solution: '
159	SELECT CASE( cn_dyn2d(ib_bdy) )
160	CASE('none')
161	IF(lwp) WRITE(numout,*) ' no open boundary condition'
162	dta_bdy(ib_bdy)%ll_ssh = .false.
163	dta_bdy(ib_bdy)%ll_u2d = .false.
164	dta_bdy(ib_bdy)%ll_v2d = .false.
165	CASE('frs')
166	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
167	dta_bdy(ib_bdy)%ll_ssh = .false.
168	dta_bdy(ib_bdy)%ll_u2d = .true.
169	dta_bdy(ib_bdy)%ll_v2d = .true.
170	CASE('flather')
171	IF(lwp) WRITE(numout,*) ' Flather radiation condition'
172	dta_bdy(ib_bdy)%ll_ssh = .true.
173	dta_bdy(ib_bdy)%ll_u2d = .true.
174	dta_bdy(ib_bdy)%ll_v2d = .true.
175	CASE('orlanski')
176	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
177	dta_bdy(ib_bdy)%ll_ssh = .false.
178	dta_bdy(ib_bdy)%ll_u2d = .true.
179	dta_bdy(ib_bdy)%ll_v2d = .true.
180	CASE('orlanski_npo')
181	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
182	dta_bdy(ib_bdy)%ll_ssh = .false.
183	dta_bdy(ib_bdy)%ll_u2d = .true.
184	dta_bdy(ib_bdy)%ll_v2d = .true.
185	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn2d' )
186	END SELECT
187	IF( cn_dyn2d(ib_bdy) /= 'none' ) THEN
188	SELECT CASE( nn_dyn2d_dta(ib_bdy) ) !
189	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
190	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
191	CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' tidal harmonic forcing taken from file'
192	CASE( 3 ) ; IF(lwp) WRITE(numout,*) ' boundary data AND tidal harmonic forcing taken from files'
193	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn2d_dta must be between 0 and 3' )
194	END SELECT
195	IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(.NOT.lk_tide)) THEN
196	CALL ctl_stop( 'You must activate key_tide to add tidal forcing at open boundaries' )
197	ENDIF
198	ENDIF
199	IF(lwp) WRITE(numout,*)
200
201	IF(lwp) WRITE(numout,*) 'Boundary conditions for baroclinic velocities: '
202	SELECT CASE( cn_dyn3d(ib_bdy) )
203	CASE('none')
204	IF(lwp) WRITE(numout,*) ' no open boundary condition'
205	dta_bdy(ib_bdy)%ll_u3d = .false.
206	dta_bdy(ib_bdy)%ll_v3d = .false.
207	CASE('frs')
208	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
209	dta_bdy(ib_bdy)%ll_u3d = .true.
210	dta_bdy(ib_bdy)%ll_v3d = .true.
211	CASE('specified')
212	IF(lwp) WRITE(numout,*) ' Specified value'
213	dta_bdy(ib_bdy)%ll_u3d = .true.
214	dta_bdy(ib_bdy)%ll_v3d = .true.
215	CASE('zero')
216	IF(lwp) WRITE(numout,*) ' Zero baroclinic velocities (runoff case)'
217	dta_bdy(ib_bdy)%ll_u3d = .false.
218	dta_bdy(ib_bdy)%ll_v3d = .false.
219	CASE('orlanski')
220	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
221	dta_bdy(ib_bdy)%ll_u3d = .true.
222	dta_bdy(ib_bdy)%ll_v3d = .true.
223	CASE('orlanski_npo')
224	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
225	dta_bdy(ib_bdy)%ll_u3d = .true.
226	dta_bdy(ib_bdy)%ll_v3d = .true.
227	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn3d' )
228	END SELECT
229	IF( cn_dyn3d(ib_bdy) /= 'none' ) THEN
230	SELECT CASE( nn_dyn3d_dta(ib_bdy) ) !
231	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
232	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
233	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn3d_dta must be 0 or 1' )
234	END SELECT
235	ENDIF
236
237	IF ( ln_dyn3d_dmp(ib_bdy) ) THEN
238	IF ( cn_dyn3d(ib_bdy) == 'none' ) THEN
239	IF(lwp) WRITE(numout,*) 'No open boundary condition for baroclinic velocities: ln_dyn3d_dmp is set to .false.'
240	ln_dyn3d_dmp(ib_bdy)=.false.
241	ELSEIF ( cn_dyn3d(ib_bdy) == 'frs' ) THEN
242	CALL ctl_stop( 'Use FRS OR relaxation' )
243	ELSE
244	IF(lwp) WRITE(numout,*) ' + baroclinic velocities relaxation zone'
245	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
246	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
247	dta_bdy(ib_bdy)%ll_u3d = .true.
248	dta_bdy(ib_bdy)%ll_v3d = .true.
249	ENDIF
250	ELSE
251	IF(lwp) WRITE(numout,*) ' NO relaxation on baroclinic velocities'
252	ENDIF
253	IF(lwp) WRITE(numout,*)
254
255	IF(lwp) WRITE(numout,*) 'Boundary conditions for temperature and salinity: '
256	SELECT CASE( cn_tra(ib_bdy) )
257	CASE('none')
258	IF(lwp) WRITE(numout,*) ' no open boundary condition'
259	dta_bdy(ib_bdy)%ll_tem = .false.
260	dta_bdy(ib_bdy)%ll_sal = .false.
261	CASE('frs')
262	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
263	dta_bdy(ib_bdy)%ll_tem = .true.
264	dta_bdy(ib_bdy)%ll_sal = .true.
265	CASE('specified')
266	IF(lwp) WRITE(numout,*) ' Specified value'
267	dta_bdy(ib_bdy)%ll_tem = .true.
268	dta_bdy(ib_bdy)%ll_sal = .true.
269	CASE('neumann')
270	IF(lwp) WRITE(numout,*) ' Neumann conditions'
271	dta_bdy(ib_bdy)%ll_tem = .false.
272	dta_bdy(ib_bdy)%ll_sal = .false.
273	CASE('runoff')
274	IF(lwp) WRITE(numout,*) ' Runoff conditions : Neumann for T and specified to 0.1 for salinity'
275	dta_bdy(ib_bdy)%ll_tem = .false.
276	dta_bdy(ib_bdy)%ll_sal = .false.
277	CASE('orlanski')
278	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
279	dta_bdy(ib_bdy)%ll_tem = .true.
280	dta_bdy(ib_bdy)%ll_sal = .true.
281	CASE('orlanski_npo')
282	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
283	dta_bdy(ib_bdy)%ll_tem = .true.
284	dta_bdy(ib_bdy)%ll_sal = .true.
285	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_tra' )
286	END SELECT
287	IF( cn_tra(ib_bdy) /= 'none' ) THEN
288	SELECT CASE( nn_tra_dta(ib_bdy) ) !
289	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
290	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
291	CASE DEFAULT ; CALL ctl_stop( 'nn_tra_dta must be 0 or 1' )
292	END SELECT
293	ENDIF
294
295	IF ( ln_tra_dmp(ib_bdy) ) THEN
296	IF ( cn_tra(ib_bdy) == 'none' ) THEN
297	IF(lwp) WRITE(numout,*) 'No open boundary condition for tracers: ln_tra_dmp is set to .false.'
298	ln_tra_dmp(ib_bdy)=.false.
299	ELSEIF ( cn_tra(ib_bdy) == 'frs' ) THEN
300	CALL ctl_stop( 'Use FRS OR relaxation' )
301	ELSE
302	IF(lwp) WRITE(numout,*) ' + T/S relaxation zone'
303	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
304	IF(lwp) WRITE(numout,*) ' Outflow damping time scale: ',rn_time_dmp_out(ib_bdy),' days'
305	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
306	dta_bdy(ib_bdy)%ll_tem = .true.
307	dta_bdy(ib_bdy)%ll_sal = .true.
308	ENDIF
309	ELSE
310	IF(lwp) WRITE(numout,*) ' NO T/S relaxation'
311	ENDIF
312	IF(lwp) WRITE(numout,*)
313
314	#if defined key_lim2
315	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
316	SELECT CASE( cn_ice_lim(ib_bdy) )
317	CASE('none')
318	IF(lwp) WRITE(numout,*) ' no open boundary condition'
319	dta_bdy(ib_bdy)%ll_frld = .false.
320	dta_bdy(ib_bdy)%ll_hicif = .false.
321	dta_bdy(ib_bdy)%ll_hsnif = .false.
322	CASE('frs')
323	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
324	dta_bdy(ib_bdy)%ll_frld = .true.
325	dta_bdy(ib_bdy)%ll_hicif = .true.
326	dta_bdy(ib_bdy)%ll_hsnif = .true.
327	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
328	END SELECT
329	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
330	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
331	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
332	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
333	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
334	END SELECT
335	ENDIF
336	IF(lwp) WRITE(numout,*)
337	#elif defined key_lim3
338	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
339	SELECT CASE( cn_ice_lim(ib_bdy) )
340	CASE('none')
341	IF(lwp) WRITE(numout,*) ' no open boundary condition'
342	dta_bdy(ib_bdy)%ll_a_i = .false.
343	dta_bdy(ib_bdy)%ll_ht_i = .false.
344	dta_bdy(ib_bdy)%ll_ht_s = .false.
345	CASE('frs')
346	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
347	dta_bdy(ib_bdy)%ll_a_i = .true.
348	dta_bdy(ib_bdy)%ll_ht_i = .true.
349	dta_bdy(ib_bdy)%ll_ht_s = .true.
350	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
351	END SELECT
352	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
353	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
354	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
355	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
356	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
357	END SELECT
358	ENDIF
359	IF(lwp) WRITE(numout,*)
360	IF(lwp) WRITE(numout,*) ' tem of bdy sea-ice = ', rn_ice_tem(ib_bdy)
361	IF(lwp) WRITE(numout,*) ' sal of bdy sea-ice = ', rn_ice_sal(ib_bdy)
362	IF(lwp) WRITE(numout,*) ' age of bdy sea-ice = ', rn_ice_age(ib_bdy)
363	#endif
364
365	IF(lwp) WRITE(numout,*) ' Width of relaxation zone = ', nn_rimwidth(ib_bdy)
366	IF(lwp) WRITE(numout,*)
367
368	ENDDO
369
370	IF (nb_bdy .gt. 0) THEN
371	IF( ln_vol ) THEN ! check volume conservation (nn_volctl value)
372	IF(lwp) WRITE(numout,*) 'Volume correction applied at open boundaries'
373	IF(lwp) WRITE(numout,*)
374	SELECT CASE ( nn_volctl )
375	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' The total volume will be constant'
376	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' The total volume will vary according to the surface E-P flux'
377	CASE DEFAULT ; CALL ctl_stop( 'nn_volctl must be 0 or 1' )
378	END SELECT
379	IF(lwp) WRITE(numout,*)
380	ELSE
381	IF(lwp) WRITE(numout,*) 'No volume correction applied at open boundaries'
382	IF(lwp) WRITE(numout,*)
383	ENDIF
384	ENDIF
385
386	! -------------------------------------------------
387	! Initialise indices arrays for open boundaries
388	! -------------------------------------------------
389
390	! Work out global dimensions of boundary data
391	! ---------------------------------------------
392	REWIND( numnam_cfg )
393
394	!!----------------------------------------------------------------------
395
396
397
398	nblendta(:,:) = 0
399	nbdysege = 0
400	nbdysegw = 0
401	nbdysegn = 0
402	nbdysegs = 0
403	icount = 0 ! count user defined segments
404	! Dimensions below are used to allocate arrays to read external data
405	jpbdtas = 1 ! Maximum size of boundary data (structured case)
406	jpbdtau = 1 ! Maximum size of boundary data (unstructured case)
407
408	DO ib_bdy = 1, nb_bdy
409
410	IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Work out size of global arrays from namelist parameters
411
412	icount = icount + 1
413	! No REWIND here because may need to read more than one nambdy_index namelist.
414	! Read only namelist_cfg to avoid unseccessfull overwrite
415	!! REWIND( numnam_ref ) ! Namelist nambdy_index in reference namelist : Open boundaries indexes
416	!! READ ( numnam_ref, namrun, IOSTAT = ios, ERR = 903)
417	!!903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in reference namelist', lwp )
418
419	!! REWIND( numnam_cfg ) ! Namelist nambdy_index in configuration namelist : Open boundaries indexes
420	READ ( numnam_cfg, nambdy_index, IOSTAT = ios, ERR = 904 )
421	904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in configuration namelist', lwp )
422	IF(lwm) WRITE ( numond, nambdy_index )
423
424	SELECT CASE ( TRIM(ctypebdy) )
425	CASE( 'N' )
426	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
427	nbdyind = jpjglo - 2 ! set boundary to whole side of model domain.
428	nbdybeg = 2
429	nbdyend = jpiglo - 1
430	ENDIF
431	nbdysegn = nbdysegn + 1
432	npckgn(nbdysegn) = ib_bdy ! Save bdy package number
433	jpjnob(nbdysegn) = nbdyind
434	jpindt(nbdysegn) = nbdybeg
435	jpinft(nbdysegn) = nbdyend
436	!
437	CASE( 'S' )
438	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
439	nbdyind = 2 ! set boundary to whole side of model domain.
440	nbdybeg = 2
441	nbdyend = jpiglo - 1
442	ENDIF
443	nbdysegs = nbdysegs + 1
444	npckgs(nbdysegs) = ib_bdy ! Save bdy package number
445	jpjsob(nbdysegs) = nbdyind
446	jpisdt(nbdysegs) = nbdybeg
447	jpisft(nbdysegs) = nbdyend
448	!
449	CASE( 'E' )
450	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
451	nbdyind = jpiglo - 2 ! set boundary to whole side of model domain.
452	nbdybeg = 2
453	nbdyend = jpjglo - 1
454	ENDIF
455	nbdysege = nbdysege + 1
456	npckge(nbdysege) = ib_bdy ! Save bdy package number
457	jpieob(nbdysege) = nbdyind
458	jpjedt(nbdysege) = nbdybeg
459	jpjeft(nbdysege) = nbdyend
460	!
461	CASE( 'W' )
462	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
463	nbdyind = 2 ! set boundary to whole side of model domain.
464	nbdybeg = 2
465	nbdyend = jpjglo - 1
466	ENDIF
467	nbdysegw = nbdysegw + 1
468	npckgw(nbdysegw) = ib_bdy ! Save bdy package number
469	jpiwob(nbdysegw) = nbdyind
470	jpjwdt(nbdysegw) = nbdybeg
471	jpjwft(nbdysegw) = nbdyend
472	!
473	CASE DEFAULT ; CALL ctl_stop( 'ctypebdy must be N, S, E or W' )
474	END SELECT
475
476	! For simplicity we assume that in case of straight bdy, arrays have the same length
477	! (even if it is true that last tangential velocity points
478	! are useless). This simplifies a little bit boundary data format (and agrees with format
479	! used so far in obc package)
480
481	nblendta(1:jpbgrd,ib_bdy) = (nbdyend - nbdybeg + 1) * nn_rimwidth(ib_bdy)
482	jpbdtas = MAX(jpbdtas, (nbdyend - nbdybeg + 1))
483	IF (lwp.and.(nn_rimwidth(ib_bdy)>nrimmax)) &
484	& CALL ctl_stop( 'rimwidth must be lower than nrimmax' )
485
486	ELSE ! Read size of arrays in boundary coordinates file.
487	CALL iom_open( cn_coords_file(ib_bdy), inum )
488	DO igrd = 1, jpbgrd
489	id_dummy = iom_varid( inum, 'nbi'//cgrid(igrd), kdimsz=kdimsz )
490	!clem nblendta(igrd,ib_bdy) = kdimsz(1)
491	!clem jpbdtau = MAX(jpbdtau, kdimsz(1))
492	nblendta(igrd,ib_bdy) = MAXVAL(kdimsz)
493	jpbdtau = MAX(jpbdtau, MAXVAL(kdimsz))
494	ENDDO
495	CALL iom_close( inum )
496
497	ENDIF
498
499	ENDDO ! ib_bdy
500
501	IF (nb_bdy>0) THEN
502	jpbdta = MAXVAL(nblendta(1:jpbgrd,1:nb_bdy))
503
504	! Allocate arrays
505	!---------------
506	ALLOCATE( nbidta(jpbdta, jpbgrd, nb_bdy), nbjdta(jpbdta, jpbgrd, nb_bdy), &
507	& nbrdta(jpbdta, jpbgrd, nb_bdy) )
508
509	ALLOCATE( dta_global(jpbdtau, 1, jpk) )
510	IF ( icount>0 ) ALLOCATE( dta_global2(jpbdtas, nrimmax, jpk) )
511	!
512	ENDIF
513
514	! Now look for crossings in user (namelist) defined open boundary segments:
515	!--------------------------------------------------------------------------
516	IF ( icount>0 ) CALL bdy_ctl_seg
517
518	! Calculate global boundary index arrays or read in from file
519	!------------------------------------------------------------
520	! 1. Read global index arrays from boundary coordinates file.
521	DO ib_bdy = 1, nb_bdy
522
523	IF( ln_coords_file(ib_bdy) ) THEN
524
525	CALL iom_open( cn_coords_file(ib_bdy), inum )
526	DO igrd = 1, jpbgrd
527	CALL iom_get( inum, jpdom_unknown, 'nbi'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
528	DO ii = 1,nblendta(igrd,ib_bdy)
529	nbidta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
530	END DO
531	CALL iom_get( inum, jpdom_unknown, 'nbj'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
532	DO ii = 1,nblendta(igrd,ib_bdy)
533	nbjdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
534	END DO
535	CALL iom_get( inum, jpdom_unknown, 'nbr'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
536	DO ii = 1,nblendta(igrd,ib_bdy)
537	nbrdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
538	END DO
539
540	ibr_max = MAXVAL( nbrdta(:,igrd,ib_bdy) )
541	IF(lwp) WRITE(numout,*)
542	IF(lwp) WRITE(numout,*) ' Maximum rimwidth in file is ', ibr_max
543	IF(lwp) WRITE(numout,*) ' nn_rimwidth from namelist is ', nn_rimwidth(ib_bdy)
544	IF (ibr_max < nn_rimwidth(ib_bdy)) &
545	CALL ctl_stop( 'nn_rimwidth is larger than maximum rimwidth in file',cn_coords_file(ib_bdy) )
546	END DO
547	CALL iom_close( inum )
548
549	ENDIF
550
551	ENDDO
552
553	! 2. Now fill indices corresponding to straight open boundary arrays:
554	! East
555	!-----
556	DO iseg = 1, nbdysege
557	ib_bdy = npckge(iseg)
558	!
559	! ------------ T points -------------
560	igrd=1
561	icount=0
562	DO ir = 1, nn_rimwidth(ib_bdy)
563	DO ij = jpjedt(iseg), jpjeft(iseg)
564	icount = icount + 1
565	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
566	nbjdta(icount, igrd, ib_bdy) = ij
567	nbrdta(icount, igrd, ib_bdy) = ir
568	ENDDO
569	ENDDO
570	!
571	! ------------ U points -------------
572	igrd=2
573	icount=0
574	DO ir = 1, nn_rimwidth(ib_bdy)
575	DO ij = jpjedt(iseg), jpjeft(iseg)
576	icount = icount + 1
577	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 1 - ir
578	nbjdta(icount, igrd, ib_bdy) = ij
579	nbrdta(icount, igrd, ib_bdy) = ir
580	ENDDO
581	ENDDO
582	!
583	! ------------ V points -------------
584	igrd=3
585	icount=0
586	DO ir = 1, nn_rimwidth(ib_bdy)
587	! DO ij = jpjedt(iseg), jpjeft(iseg) - 1
588	DO ij = jpjedt(iseg), jpjeft(iseg)
589	icount = icount + 1
590	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
591	nbjdta(icount, igrd, ib_bdy) = ij
592	nbrdta(icount, igrd, ib_bdy) = ir
593	ENDDO
594	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
595	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
596	ENDDO
597	ENDDO
598	!
599	! West
600	!-----
601	DO iseg = 1, nbdysegw
602	ib_bdy = npckgw(iseg)
603	!
604	! ------------ T points -------------
605	igrd=1
606	icount=0
607	DO ir = 1, nn_rimwidth(ib_bdy)
608	DO ij = jpjwdt(iseg), jpjwft(iseg)
609	icount = icount + 1
610	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
611	nbjdta(icount, igrd, ib_bdy) = ij
612	nbrdta(icount, igrd, ib_bdy) = ir
613	ENDDO
614	ENDDO
615	!
616	! ------------ U points -------------
617	igrd=2
618	icount=0
619	DO ir = 1, nn_rimwidth(ib_bdy)
620	DO ij = jpjwdt(iseg), jpjwft(iseg)
621	icount = icount + 1
622	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
623	nbjdta(icount, igrd, ib_bdy) = ij
624	nbrdta(icount, igrd, ib_bdy) = ir
625	ENDDO
626	ENDDO
627	!
628	! ------------ V points -------------
629	igrd=3
630	icount=0
631	DO ir = 1, nn_rimwidth(ib_bdy)
632	! DO ij = jpjwdt(iseg), jpjwft(iseg) - 1
633	DO ij = jpjwdt(iseg), jpjwft(iseg)
634	icount = icount + 1
635	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
636	nbjdta(icount, igrd, ib_bdy) = ij
637	nbrdta(icount, igrd, ib_bdy) = ir
638	ENDDO
639	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
640	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
641	ENDDO
642	ENDDO
643	!
644	! North
645	!-----
646	DO iseg = 1, nbdysegn
647	ib_bdy = npckgn(iseg)
648	!
649	! ------------ T points -------------
650	igrd=1
651	icount=0
652	DO ir = 1, nn_rimwidth(ib_bdy)
653	DO ii = jpindt(iseg), jpinft(iseg)
654	icount = icount + 1
655	nbidta(icount, igrd, ib_bdy) = ii
656	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
657	nbrdta(icount, igrd, ib_bdy) = ir
658	ENDDO
659	ENDDO
660	!
661	! ------------ U points -------------
662	igrd=2
663	icount=0
664	DO ir = 1, nn_rimwidth(ib_bdy)
665	! DO ii = jpindt(iseg), jpinft(iseg) - 1
666	DO ii = jpindt(iseg), jpinft(iseg)
667	icount = icount + 1
668	nbidta(icount, igrd, ib_bdy) = ii
669	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
670	nbrdta(icount, igrd, ib_bdy) = ir
671	ENDDO
672	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
673	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
674	ENDDO
675	!
676	! ------------ V points -------------
677	igrd=3
678	icount=0
679	DO ir = 1, nn_rimwidth(ib_bdy)
680	DO ii = jpindt(iseg), jpinft(iseg)
681	icount = icount + 1
682	nbidta(icount, igrd, ib_bdy) = ii
683	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 1 - ir
684	nbrdta(icount, igrd, ib_bdy) = ir
685	ENDDO
686	ENDDO
687	ENDDO
688	!
689	! South
690	!-----
691	DO iseg = 1, nbdysegs
692	ib_bdy = npckgs(iseg)
693	!
694	! ------------ T points -------------
695	igrd=1
696	icount=0
697	DO ir = 1, nn_rimwidth(ib_bdy)
698	DO ii = jpisdt(iseg), jpisft(iseg)
699	icount = icount + 1
700	nbidta(icount, igrd, ib_bdy) = ii
701	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
702	nbrdta(icount, igrd, ib_bdy) = ir
703	ENDDO
704	ENDDO
705	!
706	! ------------ U points -------------
707	igrd=2
708	icount=0
709	DO ir = 1, nn_rimwidth(ib_bdy)
710	! DO ii = jpisdt(iseg), jpisft(iseg) - 1
711	DO ii = jpisdt(iseg), jpisft(iseg)
712	icount = icount + 1
713	nbidta(icount, igrd, ib_bdy) = ii
714	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
715	nbrdta(icount, igrd, ib_bdy) = ir
716	ENDDO
717	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
718	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
719	ENDDO
720	!
721	! ------------ V points -------------
722	igrd=3
723	icount=0
724	DO ir = 1, nn_rimwidth(ib_bdy)
725	DO ii = jpisdt(iseg), jpisft(iseg)
726	icount = icount + 1
727	nbidta(icount, igrd, ib_bdy) = ii
728	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
729	nbrdta(icount, igrd, ib_bdy) = ir
730	ENDDO
731	ENDDO
732	ENDDO
733
734	! Deal with duplicated points
735	!-----------------------------
736	! We assign negative indices to duplicated points (to remove them from bdy points to be updated)
737	! if their distance to the bdy is greater than the other
738	! If their distance are the same, just keep only one to avoid updating a point twice
739	DO igrd = 1, jpbgrd
740	DO ib_bdy1 = 1, nb_bdy
741	DO ib_bdy2 = 1, nb_bdy
742	IF (ib_bdy1/=ib_bdy2) THEN
743	DO ib1 = 1, nblendta(igrd,ib_bdy1)
744	DO ib2 = 1, nblendta(igrd,ib_bdy2)
745	IF ((nbidta(ib1, igrd, ib_bdy1)==nbidta(ib2, igrd, ib_bdy2)).AND. &
746	& (nbjdta(ib1, igrd, ib_bdy1)==nbjdta(ib2, igrd, ib_bdy2))) THEN
747	! IF ((lwp).AND.(igrd==1)) WRITE(numout,*) ' found coincident point ji, jj:', &
748	! & nbidta(ib1, igrd, ib_bdy1), &
749	! & nbjdta(ib2, igrd, ib_bdy2)
750	! keep only points with the lowest distance to boundary:
751	IF (nbrdta(ib1, igrd, ib_bdy1)<nbrdta(ib2, igrd, ib_bdy2)) THEN
752	nbidta(ib2, igrd, ib_bdy2) =-ib_bdy2
753	nbjdta(ib2, igrd, ib_bdy2) =-ib_bdy2
754	ELSEIF (nbrdta(ib1, igrd, ib_bdy1)>nbrdta(ib2, igrd, ib_bdy2)) THEN
755	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
756	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
757	! Arbitrary choice if distances are the same:
758	ELSE
759	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
760	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
761	ENDIF
762	END IF
763	END DO
764	END DO
765	ENDIF
766	END DO
767	END DO
768	END DO
769
770	! Work out dimensions of boundary data on each processor
771	! ------------------------------------------------------
772
773	! Rather assume that boundary data indices are given on global domain
774	! TO BE DISCUSSED ?
775	! iw = mig(1) + 1 ! if monotasking and no zoom, iw=2
776	! ie = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1
777	! is = mjg(1) + 1 ! if monotasking and no zoom, is=2
778	! in = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1
779	iwe = mig(1) - jpizoom + 2 ! if monotasking and no zoom, iw=2
780	ies = mig(1) + nlci - jpizoom - 1 ! if monotasking and no zoom, ie=jpim1
781	iso = mjg(1) - jpjzoom + 2 ! if monotasking and no zoom, is=2
782	ino = mjg(1) + nlcj - jpjzoom - 1 ! if monotasking and no zoom, in=jpjm1
783
784	ALLOCATE( nbondi_bdy(nb_bdy))
785	ALLOCATE( nbondj_bdy(nb_bdy))
786	nbondi_bdy(:)=2
787	nbondj_bdy(:)=2
788	ALLOCATE( nbondi_bdy_b(nb_bdy))
789	ALLOCATE( nbondj_bdy_b(nb_bdy))
790	nbondi_bdy_b(:)=2
791	nbondj_bdy_b(:)=2
792
793	! Work out dimensions of boundary data on each neighbour process
794	IF(nbondi .eq. 0) THEN
795	iw_b(1) = jpizoom + nimppt(nowe+1)
796	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
797	is_b(1) = jpjzoom + njmppt(nowe+1)
798	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
799
800	iw_b(2) = jpizoom + nimppt(noea+1)
801	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
802	is_b(2) = jpjzoom + njmppt(noea+1)
803	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
804	ELSEIF(nbondi .eq. 1) THEN
805	iw_b(1) = jpizoom + nimppt(nowe+1)
806	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
807	is_b(1) = jpjzoom + njmppt(nowe+1)
808	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
809	ELSEIF(nbondi .eq. -1) THEN
810	iw_b(2) = jpizoom + nimppt(noea+1)
811	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
812	is_b(2) = jpjzoom + njmppt(noea+1)
813	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
814	ENDIF
815
816	IF(nbondj .eq. 0) THEN
817	iw_b(3) = jpizoom + nimppt(noso+1)
818	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
819	is_b(3) = jpjzoom + njmppt(noso+1)
820	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
821
822	iw_b(4) = jpizoom + nimppt(nono+1)
823	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
824	is_b(4) = jpjzoom + njmppt(nono+1)
825	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
826	ELSEIF(nbondj .eq. 1) THEN
827	iw_b(3) = jpizoom + nimppt(noso+1)
828	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
829	is_b(3) = jpjzoom + njmppt(noso+1)
830	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
831	ELSEIF(nbondj .eq. -1) THEN
832	iw_b(4) = jpizoom + nimppt(nono+1)
833	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
834	is_b(4) = jpjzoom + njmppt(nono+1)
835	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
836	ENDIF
837
838	DO ib_bdy = 1, nb_bdy
839	DO igrd = 1, jpbgrd
840	icount = 0
841	icountr = 0
842	idx_bdy(ib_bdy)%nblen(igrd) = 0
843	idx_bdy(ib_bdy)%nblenrim(igrd) = 0
844	DO ib = 1, nblendta(igrd,ib_bdy)
845	! check that data is in correct order in file
846	ibm1 = MAX(1,ib-1)
847	IF(lwp) THEN ! Since all procs read global data only need to do this check on one proc...
848	IF( nbrdta(ib,igrd,ib_bdy) < nbrdta(ibm1,igrd,ib_bdy) ) THEN
849	CALL ctl_stop('bdy_init : ERROR : boundary data in file must be defined ', &
850	& ' in order of distance from edge nbr A utility for re-ordering ', &
851	& ' boundary coordinates and data files exists in the TOOLS/OBC directory')
852	ENDIF
853	ENDIF
854	! check if point is in local domain
855	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
856	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino ) THEN
857	!
858	icount = icount + 1
859	!
860	IF( nbrdta(ib,igrd,ib_bdy) == 1 ) icountr = icountr+1
861	ENDIF
862	ENDDO
863	idx_bdy(ib_bdy)%nblenrim(igrd) = icountr !: length of rim boundary data on each proc
864	idx_bdy(ib_bdy)%nblen (igrd) = icount !: length of boundary data on each proc
865	ENDDO ! igrd
866
867	! Allocate index arrays for this boundary set
868	!--------------------------------------------
869	ilen1 = MAXVAL(idx_bdy(ib_bdy)%nblen(:))
870	ALLOCATE( idx_bdy(ib_bdy)%nbi(ilen1,jpbgrd) )
871	ALLOCATE( idx_bdy(ib_bdy)%nbj(ilen1,jpbgrd) )
872	ALLOCATE( idx_bdy(ib_bdy)%nbr(ilen1,jpbgrd) )
873	ALLOCATE( idx_bdy(ib_bdy)%nbd(ilen1,jpbgrd) )
874	ALLOCATE( idx_bdy(ib_bdy)%nbdout(ilen1,jpbgrd) )
875	ALLOCATE( idx_bdy(ib_bdy)%nbmap(ilen1,jpbgrd) )
876	ALLOCATE( idx_bdy(ib_bdy)%nbw(ilen1,jpbgrd) )
877	ALLOCATE( idx_bdy(ib_bdy)%flagu(ilen1,jpbgrd) )
878	ALLOCATE( idx_bdy(ib_bdy)%flagv(ilen1,jpbgrd) )
879
880	! Dispatch mapping indices and discrete distances on each processor
881	! -----------------------------------------------------------------
882
883	com_east = 0
884	com_west = 0
885	com_south = 0
886	com_north = 0
887
888	com_east_b = 0
889	com_west_b = 0
890	com_south_b = 0
891	com_north_b = 0
892
893	DO igrd = 1, jpbgrd
894	icount = 0
895	! Loop on rimwidth to ensure outermost points come first in the local arrays.
896	DO ir=1, nn_rimwidth(ib_bdy)
897	DO ib = 1, nblendta(igrd,ib_bdy)
898	! check if point is in local domain and equals ir
899	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
900	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino .AND. &
901	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
902	!
903	icount = icount + 1
904
905	! Rather assume that boundary data indices are given on global domain
906	! TO BE DISCUSSED ?
907	! idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+1
908	! idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+1
909	idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+jpizoom
910	idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+jpjzoom
911	! check if point has to be sent
912	ii = idx_bdy(ib_bdy)%nbi(icount,igrd)
913	ij = idx_bdy(ib_bdy)%nbj(icount,igrd)
914	if((com_east .ne. 1) .and. (ii .eq. (nlci-1)) .and. (nbondi .le. 0)) then
915	com_east = 1
916	elseif((com_west .ne. 1) .and. (ii .eq. 2) .and. (nbondi .ge. 0) .and. (nbondi .ne. 2)) then
917	com_west = 1
918	endif
919	if((com_south .ne. 1) .and. (ij .eq. 2) .and. (nbondj .ge. 0) .and. (nbondj .ne. 2)) then
920	com_south = 1
921	elseif((com_north .ne. 1) .and. (ij .eq. (nlcj-1)) .and. (nbondj .le. 0)) then
922	com_north = 1
923	endif
924	idx_bdy(ib_bdy)%nbr(icount,igrd) = nbrdta(ib,igrd,ib_bdy)
925	idx_bdy(ib_bdy)%nbmap(icount,igrd) = ib
926	ENDIF
927	! check if point has to be received from a neighbour
928	IF(nbondi .eq. 0) THEN
929	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
930	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
931	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
932	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
933	if((com_west_b .ne. 1) .and. (ii .eq. (nlcit(nowe+1)-1))) then
934	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
935	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
936	com_south = 1
937	elseif((ij .eq. nlcjt(nowe+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
938	com_north = 1
939	endif
940	com_west_b = 1
941	endif
942	ENDIF
943	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
944	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
945	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
946	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
947	if((com_east_b .ne. 1) .and. (ii .eq. 2)) then
948	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
949	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
950	com_south = 1
951	elseif((ij .eq. nlcjt(noea+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
952	com_north = 1
953	endif
954	com_east_b = 1
955	endif
956	ENDIF
957	ELSEIF(nbondi .eq. 1) THEN
958	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
959	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
960	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
961	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
962	if((com_west_b .ne. 1) .and. (ii .eq. (nlcit(nowe+1)-1))) then
963	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
964	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
965	com_south = 1
966	elseif((ij .eq. nlcjt(nowe+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
967	com_north = 1
968	endif
969	com_west_b = 1
970	endif
971	ENDIF
972	ELSEIF(nbondi .eq. -1) THEN
973	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
974	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
975	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
976	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
977	if((com_east_b .ne. 1) .and. (ii .eq. 2)) then
978	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
979	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
980	com_south = 1
981	elseif((ij .eq. nlcjt(noea+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
982	com_north = 1
983	endif
984	com_east_b = 1
985	endif
986	ENDIF
987	ENDIF
988	IF(nbondj .eq. 0) THEN
989	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
990	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
991	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
992	com_north_b = 1
993	ENDIF
994	IF(com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 &
995	&.OR. nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
996	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
997	com_south_b = 1
998	ENDIF
999	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1000	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1001	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1002	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1003	if((com_south_b .ne. 1) .and. (ij .eq. (nlcjt(noso+1)-1))) then
1004	com_south_b = 1
1005	endif
1006	ENDIF
1007	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1008	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1009	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1010	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1011	if((com_north_b .ne. 1) .and. (ij .eq. 2)) then
1012	com_north_b = 1
1013	endif
1014	ENDIF
1015	ELSEIF(nbondj .eq. 1) THEN
1016	IF( com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 .OR. &
1017	& nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
1018	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1019	com_south_b = 1
1020	ENDIF
1021	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1022	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1023	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1024	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1025	if((com_south_b .ne. 1) .and. (ij .eq. (nlcjt(noso+1)-1))) then
1026	com_south_b = 1
1027	endif
1028	ENDIF
1029	ELSEIF(nbondj .eq. -1) THEN
1030	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
1031	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
1032	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1033	com_north_b = 1
1034	ENDIF
1035	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1036	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1037	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1038	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1039	if((com_north_b .ne. 1) .and. (ij .eq. 2)) then
1040	com_north_b = 1
1041	endif
1042	ENDIF
1043	ENDIF
1044	ENDDO
1045	ENDDO
1046	ENDDO
1047
1048	! definition of the i- and j- direction local boundaries arrays
1049	! used for sending the boudaries
1050	IF((com_east .eq. 1) .and. (com_west .eq. 1)) THEN
1051	nbondi_bdy(ib_bdy) = 0
1052	ELSEIF ((com_east .eq. 1) .and. (com_west .eq. 0)) THEN
1053	nbondi_bdy(ib_bdy) = -1
1054	ELSEIF ((com_east .eq. 0) .and. (com_west .eq. 1)) THEN
1055	nbondi_bdy(ib_bdy) = 1
1056	ENDIF
1057
1058	IF((com_north .eq. 1) .and. (com_south .eq. 1)) THEN
1059	nbondj_bdy(ib_bdy) = 0
1060	ELSEIF ((com_north .eq. 1) .and. (com_south .eq. 0)) THEN
1061	nbondj_bdy(ib_bdy) = -1
1062	ELSEIF ((com_north .eq. 0) .and. (com_south .eq. 1)) THEN
1063	nbondj_bdy(ib_bdy) = 1
1064	ENDIF
1065
1066	! definition of the i- and j- direction local boundaries arrays
1067	! used for receiving the boudaries
1068	IF((com_east_b .eq. 1) .and. (com_west_b .eq. 1)) THEN
1069	nbondi_bdy_b(ib_bdy) = 0
1070	ELSEIF ((com_east_b .eq. 1) .and. (com_west_b .eq. 0)) THEN
1071	nbondi_bdy_b(ib_bdy) = -1
1072	ELSEIF ((com_east_b .eq. 0) .and. (com_west_b .eq. 1)) THEN
1073	nbondi_bdy_b(ib_bdy) = 1
1074	ENDIF
1075
1076	IF((com_north_b .eq. 1) .and. (com_south_b .eq. 1)) THEN
1077	nbondj_bdy_b(ib_bdy) = 0
1078	ELSEIF ((com_north_b .eq. 1) .and. (com_south_b .eq. 0)) THEN
1079	nbondj_bdy_b(ib_bdy) = -1
1080	ELSEIF ((com_north_b .eq. 0) .and. (com_south_b .eq. 1)) THEN
1081	nbondj_bdy_b(ib_bdy) = 1
1082	ENDIF
1083
1084	! Compute rim weights for FRS scheme
1085	! ----------------------------------
1086	DO igrd = 1, jpbgrd
1087	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1088	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1089	idx_bdy(ib_bdy)%nbw(ib,igrd) = 1.- TANH( FLOAT( nbr - 1 ) *0.5 ) ! tanh formulation
1090	! idx_bdy(ib_bdy)%nbw(ib,igrd) = (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))**2. ! quadratic
1091	! idx_bdy(ib_bdy)%nbw(ib,igrd) = FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)) ! linear
1092	END DO
1093	END DO
1094
1095	! Compute damping coefficients
1096	! ----------------------------
1097	DO igrd = 1, jpbgrd
1098	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1099	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1100	idx_bdy(ib_bdy)%nbd(ib,igrd) = 1. / ( rn_time_dmp(ib_bdy) * rday ) &
1101	& (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))*2. ! quadratic
1102	idx_bdy(ib_bdy)%nbdout(ib,igrd) = 1. / ( rn_time_dmp_out(ib_bdy) * rday ) &
1103	& (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))*2. ! quadratic
1104	END DO
1105	END DO
1106
1107	ENDDO
1108
1109	! ------------------------------------------------------
1110	! Initialise masks and find normal/tangential directions
1111	! ------------------------------------------------------
1112
1113	! Read global 2D mask at T-points: bdytmask
1114	! -----------------------------------------
1115	! bdytmask = 1 on the computational domain AND on open boundaries
1116	! = 0 elsewhere
1117
1118	bdytmask(:,:) = ssmask(:,:)
1119
1120	IF( ln_mask_file ) THEN
1121	CALL iom_open( cn_mask_file, inum )
1122	CALL iom_get ( inum, jpdom_data, 'bdy_msk', bdytmask(:,:) )
1123	CALL iom_close( inum )
1124
1125	! Derive mask on U and V grid from mask on T grid
1126	bdyumask(:,:) = 0.e0
1127	bdyvmask(:,:) = 0.e0
1128	DO ij=1, jpjm1
1129	DO ii=1, jpim1
1130	bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij )
1131	bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1)
1132	END DO
1133	END DO
1134	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1135
1136	ENDIF ! ln_mask_file=.TRUE.
1137
1138	IF( .not. ln_mask_file ) THEN
1139	! If .not. ln_mask_file then we need to derive mask on U and V grid
1140	! from mask on T grid here.
1141	bdyumask(:,:) = 0.e0
1142	bdyvmask(:,:) = 0.e0
1143	DO ij=1, jpjm1
1144	DO ii=1, jpim1
1145	bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij )
1146	bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1)
1147	END DO
1148	END DO
1149	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1150	ENDIF
1151
1152	! bdy masks and bmask are now set to zero on boundary points:
1153	igrd = 1 ! In the free surface case, bmask is at T-points
1154	DO ib_bdy = 1, nb_bdy
1155	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1156	bmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1157	ENDDO
1158	ENDDO
1159	!
1160	igrd = 1
1161	DO ib_bdy = 1, nb_bdy
1162	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1163	bdytmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1164	ENDDO
1165	ENDDO
1166	!
1167	igrd = 2
1168	DO ib_bdy = 1, nb_bdy
1169	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1170	bdyumask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1171	ENDDO
1172	ENDDO
1173	!
1174	igrd = 3
1175	DO ib_bdy = 1, nb_bdy
1176	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1177	bdyvmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1178	ENDDO
1179	ENDDO
1180
1181	! For the flagu/flagv calculation below we require a version of fmask without
1182	! the land boundary condition (shlat) included:
1183	CALL wrk_alloc(jpi,jpj,zfmask)
1184	DO ij = 2, jpjm1
1185	DO ii = 2, jpim1
1186	zfmask(ii,ij) = tmask(ii,ij ,1) * tmask(ii+1,ij ,1) &
1187	& * tmask(ii,ij+1,1) * tmask(ii+1,ij+1,1)
1188	END DO
1189	END DO
1190
1191	! Lateral boundary conditions
1192	CALL lbc_lnk( zfmask , 'F', 1. )
1193	CALL lbc_lnk( fmask , 'F', 1. ) ; CALL lbc_lnk( bdytmask(:,:), 'T', 1. )
1194	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. )
1195
1196	DO ib_bdy = 1, nb_bdy ! Indices and directions of rim velocity components
1197
1198	idx_bdy(ib_bdy)%flagu(:,:) = 0.e0
1199	idx_bdy(ib_bdy)%flagv(:,:) = 0.e0
1200	icount = 0
1201
1202	! Calculate relationship of U direction to the local orientation of the boundary
1203	! flagu = -1 : u component is normal to the dynamical boundary and its direction is outward
1204	! flagu = 0 : u is tangential
1205	! flagu = 1 : u is normal to the boundary and is direction is inward
1206
1207	DO igrd = 1,jpbgrd
1208	SELECT CASE( igrd )
1209	CASE( 1 )
1210	pmask => umask(:,:,1)
1211	i_offset = 0
1212	CASE( 2 )
1213	pmask => bdytmask
1214	i_offset = 1
1215	CASE( 3 )
1216	pmask => zfmask(:,:)
1217	i_offset = 0
1218	END SELECT
1219	icount = 0
1220	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1221	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1222	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1223	zefl = pmask(nbi+i_offset-1,nbj)
1224	zwfl = pmask(nbi+i_offset,nbj)
1225	! This error check only works if you are using the bdyXmask arrays
1226	IF( i_offset == 1 .and. zefl + zwfl == 2 ) THEN
1227	icount = icount + 1
1228	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1229	ELSE
1230	idx_bdy(ib_bdy)%flagu(ib,igrd) = -zefl + zwfl
1231	ENDIF
1232	END DO
1233	IF( icount /= 0 ) THEN
1234	IF(lwp) WRITE(numout,*)
1235	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1236	' are not boundary points (flagu calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1237	IF(lwp) WRITE(numout,*) ' ========== '
1238	IF(lwp) WRITE(numout,*)
1239	nstop = nstop + 1
1240	ENDIF
1241	END DO
1242
1243	! Calculate relationship of V direction to the local orientation of the boundary
1244	! flagv = -1 : v component is normal to the dynamical boundary but its direction is outward
1245	! flagv = 0 : v is tangential
1246	! flagv = 1 : v is normal to the boundary and is direction is inward
1247
1248	DO igrd = 1,jpbgrd
1249	SELECT CASE( igrd )
1250	CASE( 1 )
1251	pmask => vmask(:,:,1)
1252	j_offset = 0
1253	CASE( 2 )
1254	pmask => zfmask(:,:)
1255	j_offset = 0
1256	CASE( 3 )
1257	pmask => bdytmask
1258	j_offset = 1
1259	END SELECT
1260	icount = 0
1261	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1262	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1263	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1264	znfl = pmask(nbi,nbj+j_offset-1 )
1265	zsfl = pmask(nbi,nbj+j_offset)
1266	! This error check only works if you are using the bdyXmask arrays
1267	IF( j_offset == 1 .and. znfl + zsfl == 2 ) THEN
1268	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1269	icount = icount + 1
1270	ELSE
1271	idx_bdy(ib_bdy)%flagv(ib,igrd) = -znfl + zsfl
1272	END IF
1273	END DO
1274	IF( icount /= 0 ) THEN
1275	IF(lwp) WRITE(numout,*)
1276	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1277	' are not boundary points (flagv calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1278	IF(lwp) WRITE(numout,*) ' ========== '
1279	IF(lwp) WRITE(numout,*)
1280	nstop = nstop + 1
1281	ENDIF
1282	END DO
1283
1284	END DO
1285
1286	! Compute total lateral surface for volume correction:
1287	! ----------------------------------------------------
1288	! JC: this must be done at each time step with key_vvl
1289	bdysurftot = 0.e0
1290	IF( ln_vol ) THEN
1291	igrd = 2 ! Lateral surface at U-points
1292	DO ib_bdy = 1, nb_bdy
1293	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1294	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1295	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1296	flagu => idx_bdy(ib_bdy)%flagu(ib,igrd)
1297	bdysurftot = bdysurftot + hu (nbi , nbj) &
1298	& * e2u (nbi , nbj) * ABS( flagu ) &
1299	& * tmask_i(nbi , nbj) &
1300	& * tmask_i(nbi+1, nbj)
1301	ENDDO
1302	ENDDO
1303
1304	igrd=3 ! Add lateral surface at V-points
1305	DO ib_bdy = 1, nb_bdy
1306	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1307	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1308	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1309	flagv => idx_bdy(ib_bdy)%flagv(ib,igrd)
1310	bdysurftot = bdysurftot + hv (nbi, nbj ) &
1311	& * e1v (nbi, nbj ) * ABS( flagv ) &
1312	& * tmask_i(nbi, nbj ) &
1313	& * tmask_i(nbi, nbj+1)
1314	ENDDO
1315	ENDDO
1316	!
1317	IF( lk_mpp ) CALL mpp_sum( bdysurftot ) ! sum over the global domain
1318	END IF
1319	!
1320	! Tidy up
1321	!--------
1322	IF (nb_bdy>0) THEN
1323	DEALLOCATE(nbidta, nbjdta, nbrdta)
1324	ENDIF
1325
1326	CALL wrk_dealloc(jpi,jpj,zfmask)
1327
1328	IF( nn_timing == 1 ) CALL timing_stop('bdy_init')
1329
1330	END SUBROUTINE bdy_init
1331
1332	SUBROUTINE bdy_ctl_seg
1333	!!----------------------------------------------------------------------
1334	!! * ROUTINE bdy_ctl_seg *
1335	!!
1336	!! ** Purpose : Check straight open boundary segments location
1337	!!
1338	!! ** Method : - Look for open boundary corners
1339	!! - Check that segments start or end on land
1340	!!----------------------------------------------------------------------
1341	INTEGER :: ib, ib1, ib2, ji ,jj, itest
1342	INTEGER, DIMENSION(jp_nseg,2) :: icorne, icornw, icornn, icorns
1343	REAL(wp), DIMENSION(2) :: ztestmask
1344	!!----------------------------------------------------------------------
1345	!
1346	IF (lwp) WRITE(numout,*) ' '
1347	IF (lwp) WRITE(numout,*) 'bdy_ctl_seg: Check analytical segments'
1348	IF (lwp) WRITE(numout,*) '~~~~~~~~~~~~'
1349	!
1350	IF(lwp) WRITE(numout,*) 'Number of east segments : ', nbdysege
1351	IF(lwp) WRITE(numout,*) 'Number of west segments : ', nbdysegw
1352	IF(lwp) WRITE(numout,*) 'Number of north segments : ', nbdysegn
1353	IF(lwp) WRITE(numout,*) 'Number of south segments : ', nbdysegs
1354	! 1. Check bounds
1355	!----------------
1356	DO ib = 1, nbdysegn
1357	IF (lwp) WRITE(numout,) '*check north seg bounds pckg: ', npckgn(ib)
1358	IF ((jpjnob(ib).ge.jpjglo-1).or.&
1359	&(jpjnob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1360	IF (jpindt(ib).ge.jpinft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1361	IF (jpindt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1362	IF (jpinft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1363	END DO
1364	!
1365	DO ib = 1, nbdysegs
1366	IF (lwp) WRITE(numout,) '*check south seg bounds pckg: ', npckgs(ib)
1367	IF ((jpjsob(ib).ge.jpjglo-1).or.&
1368	&(jpjsob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1369	IF (jpisdt(ib).ge.jpisft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1370	IF (jpisdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1371	IF (jpisft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1372	END DO
1373	!
1374	DO ib = 1, nbdysege
1375	IF (lwp) WRITE(numout,) '*check east seg bounds pckg: ', npckge(ib)
1376	IF ((jpieob(ib).ge.jpiglo-1).or.&
1377	&(jpieob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1378	IF (jpjedt(ib).ge.jpjeft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1379	IF (jpjedt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1380	IF (jpjeft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1381	END DO
1382	!
1383	DO ib = 1, nbdysegw
1384	IF (lwp) WRITE(numout,) '*check west seg bounds pckg: ', npckgw(ib)
1385	IF ((jpiwob(ib).ge.jpiglo-1).or.&
1386	&(jpiwob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1387	IF (jpjwdt(ib).ge.jpjwft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1388	IF (jpjwdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1389	IF (jpjwft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1390	ENDDO
1391	!
1392	!
1393	! 2. Look for segment crossings
1394	!------------------------------
1395	IF (lwp) WRITE(numout,) '*Look for segments corners :'
1396	!
1397	itest = 0 ! corner number
1398	!
1399	! flag to detect if start or end of open boundary belongs to a corner
1400	! if not (=0), it must be on land.
1401	! if a corner is detected, save bdy package number for further tests
1402	icorne(:,:)=0. ; icornw(:,:)=0. ; icornn(:,:)=0. ; icorns(:,:)=0.
1403	! South/West crossings
1404	IF ((nbdysegw > 0).AND.(nbdysegs > 0)) THEN
1405	DO ib1 = 1, nbdysegw
1406	DO ib2 = 1, nbdysegs
1407	IF (( jpisdt(ib2)<=jpiwob(ib1)).AND. &
1408	& ( jpisft(ib2)>=jpiwob(ib1)).AND. &
1409	& ( jpjwdt(ib1)<=jpjsob(ib2)).AND. &
1410	& ( jpjwft(ib1)>=jpjsob(ib2))) THEN
1411	IF ((jpjwdt(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpiwob(ib1))) THEN
1412	! We have a possible South-West corner
1413	! WRITE(numout,*) ' Found a South-West corner at (i,j): ', jpisdt(ib2), jpjwdt(ib1)
1414	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgs(ib2)
1415	icornw(ib1,1) = npckgs(ib2)
1416	icorns(ib2,1) = npckgw(ib1)
1417	ELSEIF ((jpisft(ib2)==jpiwob(ib1)).AND.(jpjwft(ib1)==jpjsob(ib2))) THEN
1418	IF(lwp) WRITE(numout,*)
1419	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1420	& jpisft(ib2), jpjwft(ib1)
1421	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1422	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1423	& ' and South segment: ',npckgs(ib2)
1424	IF(lwp) WRITE(numout,*)
1425	nstop = nstop + 1
1426	ELSE
1427	IF(lwp) WRITE(numout,*)
1428	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and West Open boundary indices'
1429	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1) , &
1430	& ' and South segment: ',npckgs(ib2)
1431	IF(lwp) WRITE(numout,*)
1432	nstop = nstop+1
1433	END IF
1434	END IF
1435	END DO
1436	END DO
1437	END IF
1438	!
1439	! South/East crossings
1440	IF ((nbdysege > 0).AND.(nbdysegs > 0)) THEN
1441	DO ib1 = 1, nbdysege
1442	DO ib2 = 1, nbdysegs
1443	IF (( jpisdt(ib2)<=jpieob(ib1)+1).AND. &
1444	& ( jpisft(ib2)>=jpieob(ib1)+1).AND. &
1445	& ( jpjedt(ib1)<=jpjsob(ib2) ).AND. &
1446	& ( jpjeft(ib1)>=jpjsob(ib2) )) THEN
1447	IF ((jpjedt(ib1)==jpjsob(ib2)).AND.(jpisft(ib2)==jpieob(ib1)+1)) THEN
1448	! We have a possible South-East corner
1449	! WRITE(numout,*) ' Found a South-East corner at (i,j): ', jpisft(ib2), jpjedt(ib1)
1450	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgs(ib2)
1451	icorne(ib1,1) = npckgs(ib2)
1452	icorns(ib2,2) = npckge(ib1)
1453	ELSEIF ((jpjeft(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpieob(ib1)+1)) THEN
1454	IF(lwp) WRITE(numout,*)
1455	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1456	& jpisdt(ib2), jpjeft(ib1)
1457	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1458	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1459	& ' and South segment: ',npckgs(ib2)
1460	IF(lwp) WRITE(numout,*)
1461	nstop = nstop + 1
1462	ELSE
1463	IF(lwp) WRITE(numout,*)
1464	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and East Open boundary indices'
1465	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1466	& ' and South segment: ',npckgs(ib2)
1467	IF(lwp) WRITE(numout,*)
1468	nstop = nstop + 1
1469	END IF
1470	END IF
1471	END DO
1472	END DO
1473	END IF
1474	!
1475	! North/West crossings
1476	IF ((nbdysegn > 0).AND.(nbdysegw > 0)) THEN
1477	DO ib1 = 1, nbdysegw
1478	DO ib2 = 1, nbdysegn
1479	IF (( jpindt(ib2)<=jpiwob(ib1) ).AND. &
1480	& ( jpinft(ib2)>=jpiwob(ib1) ).AND. &
1481	& ( jpjwdt(ib1)<=jpjnob(ib2)+1).AND. &
1482	& ( jpjwft(ib1)>=jpjnob(ib2)+1)) THEN
1483	IF ((jpjwft(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpiwob(ib1))) THEN
1484	! We have a possible North-West corner
1485	! WRITE(numout,*) ' Found a North-West corner at (i,j): ', jpindt(ib2), jpjwft(ib1)
1486	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgn(ib2)
1487	icornw(ib1,2) = npckgn(ib2)
1488	icornn(ib2,1) = npckgw(ib1)
1489	ELSEIF ((jpjwdt(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpiwob(ib1))) THEN
1490	IF(lwp) WRITE(numout,*)
1491	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1492	& jpinft(ib2), jpjwdt(ib1)
1493	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1494	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1495	& ' and North segment: ',npckgn(ib2)
1496	IF(lwp) WRITE(numout,*)
1497	nstop = nstop + 1
1498	ELSE
1499	IF(lwp) WRITE(numout,*)
1500	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and West Open boundary indices'
1501	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1), &
1502	& ' and North segment: ',npckgn(ib2)
1503	IF(lwp) WRITE(numout,*)
1504	nstop = nstop + 1
1505	END IF
1506	END IF
1507	END DO
1508	END DO
1509	END IF
1510	!
1511	! North/East crossings
1512	IF ((nbdysegn > 0).AND.(nbdysege > 0)) THEN
1513	DO ib1 = 1, nbdysege
1514	DO ib2 = 1, nbdysegn
1515	IF (( jpindt(ib2)<=jpieob(ib1)+1).AND. &
1516	& ( jpinft(ib2)>=jpieob(ib1)+1).AND. &
1517	& ( jpjedt(ib1)<=jpjnob(ib2)+1).AND. &
1518	& ( jpjeft(ib1)>=jpjnob(ib2)+1)) THEN
1519	IF ((jpjeft(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpieob(ib1)+1)) THEN
1520	! We have a possible North-East corner
1521	! WRITE(numout,*) ' Found a North-East corner at (i,j): ', jpinft(ib2), jpjeft(ib1)
1522	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgn(ib2)
1523	icorne(ib1,2) = npckgn(ib2)
1524	icornn(ib2,2) = npckge(ib1)
1525	ELSEIF ((jpjedt(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpieob(ib1)+1)) THEN
1526	IF(lwp) WRITE(numout,*)
1527	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1528	& jpindt(ib2), jpjedt(ib1)
1529	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1530	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1531	& ' and North segment: ',npckgn(ib2)
1532	IF(lwp) WRITE(numout,*)
1533	nstop = nstop + 1
1534	ELSE
1535	IF(lwp) WRITE(numout,*)
1536	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and East Open boundary indices'
1537	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1538	& ' and North segment: ',npckgn(ib2)
1539	IF(lwp) WRITE(numout,*)
1540	nstop = nstop + 1
1541	END IF
1542	END IF
1543	END DO
1544	END DO
1545	END IF
1546	!
1547	! 3. Check if segment extremities are on land
1548	!--------------------------------------------
1549	!
1550	! West segments
1551	DO ib = 1, nbdysegw
1552	! get mask at boundary extremities:
1553	ztestmask(1:2)=0.
1554	DO ji = 1, jpi
1555	DO jj = 1, jpj
1556	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1557	& ((jj + njmpp - 1) == jpjwdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1558	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1559	& ((jj + njmpp - 1) == jpjwft(ib))) ztestmask(2)=tmask(ji,jj,1)
1560	END DO
1561	END DO
1562	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1563
1564	IF (ztestmask(1)==1) THEN
1565	IF (icornw(ib,1)==0) THEN
1566	IF(lwp) WRITE(numout,*)
1567	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(ib)
1568	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1569	IF(lwp) WRITE(numout,*)
1570	nstop = nstop + 1
1571	ELSE
1572	! This is a corner
1573	IF(lwp) WRITE(numout,*) 'Found a South-West corner at (i,j): ', jpiwob(ib), jpjwdt(ib)
1574	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,1))
1575	itest=itest+1
1576	ENDIF
1577	ENDIF
1578	IF (ztestmask(2)==1) THEN
1579	IF (icornw(ib,2)==0) THEN
1580	IF(lwp) WRITE(numout,*)
1581	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(ib)
1582	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1583	IF(lwp) WRITE(numout,*)
1584	nstop = nstop + 1
1585	ELSE
1586	! This is a corner
1587	IF(lwp) WRITE(numout,*) 'Found a North-West corner at (i,j): ', jpiwob(ib), jpjwft(ib)
1588	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,2))
1589	itest=itest+1
1590	ENDIF
1591	ENDIF
1592	END DO
1593	!
1594	! East segments
1595	DO ib = 1, nbdysege
1596	! get mask at boundary extremities:
1597	ztestmask(1:2)=0.
1598	DO ji = 1, jpi
1599	DO jj = 1, jpj
1600	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1601	& ((jj + njmpp - 1) == jpjedt(ib))) ztestmask(1)=tmask(ji,jj,1)
1602	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1603	& ((jj + njmpp - 1) == jpjeft(ib))) ztestmask(2)=tmask(ji,jj,1)
1604	END DO
1605	END DO
1606	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1607
1608	IF (ztestmask(1)==1) THEN
1609	IF (icorne(ib,1)==0) THEN
1610	IF(lwp) WRITE(numout,*)
1611	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1612	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1613	IF(lwp) WRITE(numout,*)
1614	nstop = nstop + 1
1615	ELSE
1616	! This is a corner
1617	IF(lwp) WRITE(numout,*) 'Found a South-East corner at (i,j): ', jpieob(ib)+1, jpjedt(ib)
1618	CALL bdy_ctl_corn(npckge(ib), icorne(ib,1))
1619	itest=itest+1
1620	ENDIF
1621	ENDIF
1622	IF (ztestmask(2)==1) THEN
1623	IF (icorne(ib,2)==0) THEN
1624	IF(lwp) WRITE(numout,*)
1625	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1626	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1627	IF(lwp) WRITE(numout,*)
1628	nstop = nstop + 1
1629	ELSE
1630	! This is a corner
1631	IF(lwp) WRITE(numout,*) 'Found a North-East corner at (i,j): ', jpieob(ib)+1, jpjeft(ib)
1632	CALL bdy_ctl_corn(npckge(ib), icorne(ib,2))
1633	itest=itest+1
1634	ENDIF
1635	ENDIF
1636	END DO
1637	!
1638	! South segments
1639	DO ib = 1, nbdysegs
1640	! get mask at boundary extremities:
1641	ztestmask(1:2)=0.
1642	DO ji = 1, jpi
1643	DO jj = 1, jpj
1644	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1645	& ((ji + nimpp - 1) == jpisdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1646	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1647	& ((ji + nimpp - 1) == jpisft(ib))) ztestmask(2)=tmask(ji,jj,1)
1648	END DO
1649	END DO
1650	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1651
1652	IF ((ztestmask(1)==1).AND.(icorns(ib,1)==0)) THEN
1653	IF(lwp) WRITE(numout,*)
1654	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1655	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1656	IF(lwp) WRITE(numout,*)
1657	nstop = nstop + 1
1658	ENDIF
1659	IF ((ztestmask(2)==1).AND.(icorns(ib,2)==0)) THEN
1660	IF(lwp) WRITE(numout,*)
1661	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1662	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1663	IF(lwp) WRITE(numout,*)
1664	nstop = nstop + 1
1665	ENDIF
1666	END DO
1667	!
1668	! North segments
1669	DO ib = 1, nbdysegn
1670	! get mask at boundary extremities:
1671	ztestmask(1:2)=0.
1672	DO ji = 1, jpi
1673	DO jj = 1, jpj
1674	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1675	& ((ji + nimpp - 1) == jpindt(ib))) ztestmask(1)=tmask(ji,jj,1)
1676	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1677	& ((ji + nimpp - 1) == jpinft(ib))) ztestmask(2)=tmask(ji,jj,1)
1678	END DO
1679	END DO
1680	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1681
1682	IF ((ztestmask(1)==1).AND.(icornn(ib,1)==0)) THEN
1683	IF(lwp) WRITE(numout,*)
1684	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1685	IF(lwp) WRITE(numout,*) ' ========== does not start on land'
1686	IF(lwp) WRITE(numout,*)
1687	nstop = nstop + 1
1688	ENDIF
1689	IF ((ztestmask(2)==1).AND.(icornn(ib,2)==0)) THEN
1690	IF(lwp) WRITE(numout,*)
1691	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1692	IF(lwp) WRITE(numout,*) ' ========== does not end on land'
1693	IF(lwp) WRITE(numout,*)
1694	nstop = nstop + 1
1695	ENDIF
1696	END DO
1697	!
1698	IF ((itest==0).AND.(lwp)) WRITE(numout,*) 'NO open boundary corner found'
1699	!
1700	! Other tests TBD:
1701	! segments completly on land
1702	! optimized open boundary array length according to landmask
1703	! Nudging layers that overlap with interior domain
1704	!
1705	END SUBROUTINE bdy_ctl_seg
1706
1707	SUBROUTINE bdy_ctl_corn( ib1, ib2 )
1708	!!----------------------------------------------------------------------
1709	!! * ROUTINE bdy_ctl_corn *
1710	!!
1711	!! ** Purpose : Check numerical schemes consistency between
1712	!! segments having a common corner
1713	!!
1714	!! ** Method :
1715	!!----------------------------------------------------------------------
1716	INTEGER, INTENT(in) :: ib1, ib2
1717	INTEGER :: itest
1718	!!----------------------------------------------------------------------
1719	itest = 0
1720
1721	IF (cn_dyn2d(ib1)/=cn_dyn2d(ib2)) itest = itest + 1
1722	IF (cn_dyn3d(ib1)/=cn_dyn3d(ib2)) itest = itest + 1
1723	IF (cn_tra(ib1)/=cn_tra(ib2)) itest = itest + 1
1724	!
1725	IF (nn_dyn2d_dta(ib1)/=nn_dyn2d_dta(ib2)) itest = itest + 1
1726	IF (nn_dyn3d_dta(ib1)/=nn_dyn3d_dta(ib2)) itest = itest + 1
1727	IF (nn_tra_dta(ib1)/=nn_tra_dta(ib2)) itest = itest + 1
1728	!
1729	IF (nn_rimwidth(ib1)/=nn_rimwidth(ib2)) itest = itest + 1
1730	!
1731	IF ( itest>0 ) THEN
1732	IF(lwp) WRITE(numout,*) ' E R R O R : Segments ', ib1, 'and ', ib2
1733	IF(lwp) WRITE(numout,*) ' ========== have different open bdy schemes'
1734	IF(lwp) WRITE(numout,*)
1735	nstop = nstop + 1
1736	ENDIF
1737	!
1738	END SUBROUTINE bdy_ctl_corn
1739
1740	#else
1741	!!---------------------------------------------------------------------------------
1742	!! Dummy module NO open boundaries
1743	!!---------------------------------------------------------------------------------
1744	CONTAINS
1745	SUBROUTINE bdy_init ! Dummy routine
1746	END SUBROUTINE bdy_init
1747	#endif
1748
1749	!!=================================================================================
1750	END MODULE bdyini

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source: branches/NERC/dev_r5840_BDY_MSK/NEMOGCM/NEMO/OPA_SRC/BDY/bdyini.F90 @ 6948

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