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bdyini.F90 @ 10774

Last change on this file since 10774 was 10774, checked in by andmirek, 5 years ago
GMED 450 add flush after prints
File size: 83.2 KB

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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) THEN
113	WRITE(numout,*)
114	WRITE(numout,*) 'bdy_init : initialization of open boundaries'
115	WRITE(numout,*) '~~~~~~~~'
116	IF(lflush) CALL flush(numout)
117	ENDIF
118	!
119
120	IF( jperio /= 0 ) CALL ctl_stop( 'Cyclic or symmetric,', &
121	& ' and general open boundary condition are not compatible' )
122
123	cgrid= (/'t','u','v'/)
124
125	! ------------------------
126	! Read namelist parameters
127	! ------------------------
128
129	REWIND( numnam_ref ) ! Namelist nambdy in reference namelist :Unstructured open boundaries
130	READ ( numnam_ref, nambdy, IOSTAT = ios, ERR = 901)
131	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in reference namelist', lwp )
132
133	REWIND( numnam_cfg ) ! Namelist nambdy in configuration namelist :Unstructured open boundaries
134	READ ( numnam_cfg, nambdy, IOSTAT = ios, ERR = 902 )
135	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in configuration namelist', lwp )
136	IF(lwm .AND. nprint > 2) WRITE ( numond, nambdy )
137
138	! -----------------------------------------
139	! Check and write out namelist parameters
140	! -----------------------------------------
141	! ! control prints
142	IF(lwp) WRITE(numout,*) ' nambdy'
143
144	IF( nb_bdy .eq. 0 ) THEN
145	IF(lwp) WRITE(numout,*) 'nb_bdy = 0, NO OPEN BOUNDARIES APPLIED.'
146	ELSE
147	IF(lwp) WRITE(numout,*) 'Number of open boundary sets : ',nb_bdy
148	ENDIF
149
150	DO ib_bdy = 1,nb_bdy
151	IF(lwp) WRITE(numout,*) ' '
152	IF(lwp) WRITE(numout,*) '------ Open boundary data set ',ib_bdy,'------'
153
154	IF( ln_coords_file(ib_bdy) ) THEN
155	IF(lwp) WRITE(numout,*) 'Boundary definition read from file '//TRIM(cn_coords_file(ib_bdy))
156	ELSE
157	IF(lwp) WRITE(numout,*) 'Boundary defined in namelist.'
158	ENDIF
159	IF(lwp) WRITE(numout,*)
160
161	IF(lwp) WRITE(numout,*) 'Boundary conditions for barotropic solution: '
162	SELECT CASE( cn_dyn2d(ib_bdy) )
163	CASE('none')
164	IF(lwp) WRITE(numout,*) ' no open boundary condition'
165	dta_bdy(ib_bdy)%ll_ssh = .false.
166	dta_bdy(ib_bdy)%ll_u2d = .false.
167	dta_bdy(ib_bdy)%ll_v2d = .false.
168	CASE('frs')
169	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
170	dta_bdy(ib_bdy)%ll_ssh = .false.
171	dta_bdy(ib_bdy)%ll_u2d = .true.
172	dta_bdy(ib_bdy)%ll_v2d = .true.
173	CASE('flather')
174	IF(lwp) WRITE(numout,*) ' Flather radiation condition'
175	dta_bdy(ib_bdy)%ll_ssh = .true.
176	dta_bdy(ib_bdy)%ll_u2d = .true.
177	dta_bdy(ib_bdy)%ll_v2d = .true.
178	CASE('orlanski')
179	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
180	dta_bdy(ib_bdy)%ll_ssh = .false.
181	dta_bdy(ib_bdy)%ll_u2d = .true.
182	dta_bdy(ib_bdy)%ll_v2d = .true.
183	CASE('orlanski_npo')
184	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
185	dta_bdy(ib_bdy)%ll_ssh = .false.
186	dta_bdy(ib_bdy)%ll_u2d = .true.
187	dta_bdy(ib_bdy)%ll_v2d = .true.
188	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn2d' )
189	END SELECT
190	IF( cn_dyn2d(ib_bdy) /= 'none' ) THEN
191	SELECT CASE( nn_dyn2d_dta(ib_bdy) ) !
192	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
193	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
194	CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' tidal harmonic forcing taken from file'
195	CASE( 3 ) ; IF(lwp) WRITE(numout,*) ' boundary data AND tidal harmonic forcing taken from files'
196	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn2d_dta must be between 0 and 3' )
197	END SELECT
198	IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(.NOT.lk_tide)) THEN
199	CALL ctl_stop( 'You must activate key_tide to add tidal forcing at open boundaries' )
200	ENDIF
201	ENDIF
202	IF(lwp) WRITE(numout,*)
203
204	IF(lwp) WRITE(numout,*) 'Boundary conditions for baroclinic velocities: '
205	SELECT CASE( cn_dyn3d(ib_bdy) )
206	CASE('none')
207	IF(lwp) WRITE(numout,*) ' no open boundary condition'
208	dta_bdy(ib_bdy)%ll_u3d = .false.
209	dta_bdy(ib_bdy)%ll_v3d = .false.
210	CASE('frs')
211	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
212	dta_bdy(ib_bdy)%ll_u3d = .true.
213	dta_bdy(ib_bdy)%ll_v3d = .true.
214	CASE('specified')
215	IF(lwp) WRITE(numout,*) ' Specified value'
216	dta_bdy(ib_bdy)%ll_u3d = .true.
217	dta_bdy(ib_bdy)%ll_v3d = .true.
218	CASE('zero')
219	IF(lwp) WRITE(numout,*) ' Zero baroclinic velocities (runoff case)'
220	dta_bdy(ib_bdy)%ll_u3d = .false.
221	dta_bdy(ib_bdy)%ll_v3d = .false.
222	CASE('orlanski')
223	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
224	dta_bdy(ib_bdy)%ll_u3d = .true.
225	dta_bdy(ib_bdy)%ll_v3d = .true.
226	CASE('orlanski_npo')
227	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
228	dta_bdy(ib_bdy)%ll_u3d = .true.
229	dta_bdy(ib_bdy)%ll_v3d = .true.
230	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn3d' )
231	END SELECT
232	IF( cn_dyn3d(ib_bdy) /= 'none' ) THEN
233	SELECT CASE( nn_dyn3d_dta(ib_bdy) ) !
234	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
235	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
236	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn3d_dta must be 0 or 1' )
237	END SELECT
238	ENDIF
239
240	IF ( ln_dyn3d_dmp(ib_bdy) ) THEN
241	IF ( cn_dyn3d(ib_bdy) == 'none' ) THEN
242	IF(lwp) WRITE(numout,*) 'No open boundary condition for baroclinic velocities: ln_dyn3d_dmp is set to .false.'
243	ln_dyn3d_dmp(ib_bdy)=.false.
244	ELSEIF ( cn_dyn3d(ib_bdy) == 'frs' ) THEN
245	CALL ctl_stop( 'Use FRS OR relaxation' )
246	ELSE
247	IF(lwp) WRITE(numout,*) ' + baroclinic velocities relaxation zone'
248	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
249	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
250	dta_bdy(ib_bdy)%ll_u3d = .true.
251	dta_bdy(ib_bdy)%ll_v3d = .true.
252	ENDIF
253	ELSE
254	IF(lwp) WRITE(numout,*) ' NO relaxation on baroclinic velocities'
255	ENDIF
256	IF(lwp) WRITE(numout,*)
257
258	IF(lwp) WRITE(numout,*) 'Boundary conditions for temperature and salinity: '
259	SELECT CASE( cn_tra(ib_bdy) )
260	CASE('none')
261	IF(lwp) WRITE(numout,*) ' no open boundary condition'
262	dta_bdy(ib_bdy)%ll_tem = .false.
263	dta_bdy(ib_bdy)%ll_sal = .false.
264	CASE('frs')
265	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
266	dta_bdy(ib_bdy)%ll_tem = .true.
267	dta_bdy(ib_bdy)%ll_sal = .true.
268	CASE('specified')
269	IF(lwp) WRITE(numout,*) ' Specified value'
270	dta_bdy(ib_bdy)%ll_tem = .true.
271	dta_bdy(ib_bdy)%ll_sal = .true.
272	CASE('neumann')
273	IF(lwp) WRITE(numout,*) ' Neumann conditions'
274	dta_bdy(ib_bdy)%ll_tem = .false.
275	dta_bdy(ib_bdy)%ll_sal = .false.
276	CASE('runoff')
277	IF(lwp) WRITE(numout,*) ' Runoff conditions : Neumann for T and specified to 0.1 for salinity'
278	dta_bdy(ib_bdy)%ll_tem = .false.
279	dta_bdy(ib_bdy)%ll_sal = .false.
280	CASE('orlanski')
281	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
282	dta_bdy(ib_bdy)%ll_tem = .true.
283	dta_bdy(ib_bdy)%ll_sal = .true.
284	CASE('orlanski_npo')
285	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
286	dta_bdy(ib_bdy)%ll_tem = .true.
287	dta_bdy(ib_bdy)%ll_sal = .true.
288	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_tra' )
289	END SELECT
290	IF( cn_tra(ib_bdy) /= 'none' ) THEN
291	SELECT CASE( nn_tra_dta(ib_bdy) ) !
292	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
293	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
294	CASE DEFAULT ; CALL ctl_stop( 'nn_tra_dta must be 0 or 1' )
295	END SELECT
296	ENDIF
297
298	IF ( ln_tra_dmp(ib_bdy) ) THEN
299	IF ( cn_tra(ib_bdy) == 'none' ) THEN
300	IF(lwp) WRITE(numout,*) 'No open boundary condition for tracers: ln_tra_dmp is set to .false.'
301	ln_tra_dmp(ib_bdy)=.false.
302	ELSEIF ( cn_tra(ib_bdy) == 'frs' ) THEN
303	CALL ctl_stop( 'Use FRS OR relaxation' )
304	ELSE
305	IF(lwp) WRITE(numout,*) ' + T/S relaxation zone'
306	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
307	IF(lwp) WRITE(numout,*) ' Outflow damping time scale: ',rn_time_dmp_out(ib_bdy),' days'
308	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
309	dta_bdy(ib_bdy)%ll_tem = .true.
310	dta_bdy(ib_bdy)%ll_sal = .true.
311	ENDIF
312	ELSE
313	IF(lwp) WRITE(numout,*) ' NO T/S relaxation'
314	ENDIF
315	IF(lwp) WRITE(numout,*)
316
317	#if defined key_lim2
318	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
319	SELECT CASE( cn_ice_lim(ib_bdy) )
320	CASE('none')
321	IF(lwp) WRITE(numout,*) ' no open boundary condition'
322	dta_bdy(ib_bdy)%ll_frld = .false.
323	dta_bdy(ib_bdy)%ll_hicif = .false.
324	dta_bdy(ib_bdy)%ll_hsnif = .false.
325	CASE('frs')
326	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
327	dta_bdy(ib_bdy)%ll_frld = .true.
328	dta_bdy(ib_bdy)%ll_hicif = .true.
329	dta_bdy(ib_bdy)%ll_hsnif = .true.
330	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
331	END SELECT
332	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
333	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
334	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
335	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
336	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
337	END SELECT
338	ENDIF
339	IF(lwp) WRITE(numout,*)
340	#elif defined key_lim3
341	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
342	SELECT CASE( cn_ice_lim(ib_bdy) )
343	CASE('none')
344	IF(lwp) WRITE(numout,*) ' no open boundary condition'
345	dta_bdy(ib_bdy)%ll_a_i = .false.
346	dta_bdy(ib_bdy)%ll_ht_i = .false.
347	dta_bdy(ib_bdy)%ll_ht_s = .false.
348	CASE('frs')
349	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
350	dta_bdy(ib_bdy)%ll_a_i = .true.
351	dta_bdy(ib_bdy)%ll_ht_i = .true.
352	dta_bdy(ib_bdy)%ll_ht_s = .true.
353	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
354	END SELECT
355	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
356	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
357	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
358	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
359	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
360	END SELECT
361	ENDIF
362	IF(lwp) WRITE(numout,*)
363	IF(lwp) WRITE(numout,*) ' tem of bdy sea-ice = ', rn_ice_tem(ib_bdy)
364	IF(lwp) WRITE(numout,*) ' sal of bdy sea-ice = ', rn_ice_sal(ib_bdy)
365	IF(lwp) WRITE(numout,*) ' age of bdy sea-ice = ', rn_ice_age(ib_bdy)
366	#endif
367
368	IF(lwp) WRITE(numout,*) ' Width of relaxation zone = ', nn_rimwidth(ib_bdy)
369	IF(lwp) WRITE(numout,*)
370
371	ENDDO
372
373	IF (nb_bdy .gt. 0) THEN
374	IF( ln_vol ) THEN ! check volume conservation (nn_volctl value)
375	IF(lwp) WRITE(numout,*) 'Volume correction applied at open boundaries'
376	IF(lwp) WRITE(numout,*)
377	SELECT CASE ( nn_volctl )
378	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' The total volume will be constant'
379	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' The total volume will vary according to the surface E-P flux'
380	CASE DEFAULT ; CALL ctl_stop( 'nn_volctl must be 0 or 1' )
381	END SELECT
382	IF(lwp) WRITE(numout,*)
383	ELSE
384	IF(lwp) WRITE(numout,*) 'No volume correction applied at open boundaries'
385	IF(lwp) WRITE(numout,*)
386	ENDIF
387	ENDIF
388
389	! -------------------------------------------------
390	! Initialise indices arrays for open boundaries
391	! -------------------------------------------------
392
393	! Work out global dimensions of boundary data
394	! ---------------------------------------------
395	REWIND( numnam_cfg )
396
397	!!----------------------------------------------------------------------
398
399
400
401	nblendta(:,:) = 0
402	nbdysege = 0
403	nbdysegw = 0
404	nbdysegn = 0
405	nbdysegs = 0
406	icount = 0 ! count user defined segments
407	! Dimensions below are used to allocate arrays to read external data
408	jpbdtas = 1 ! Maximum size of boundary data (structured case)
409	jpbdtau = 1 ! Maximum size of boundary data (unstructured case)
410
411	DO ib_bdy = 1, nb_bdy
412
413	IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Work out size of global arrays from namelist parameters
414
415	icount = icount + 1
416	! No REWIND here because may need to read more than one nambdy_index namelist.
417	! Read only namelist_cfg to avoid unseccessfull overwrite
418	!! REWIND( numnam_ref ) ! Namelist nambdy_index in reference namelist : Open boundaries indexes
419	!! READ ( numnam_ref, namrun, IOSTAT = ios, ERR = 903)
420	!!903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in reference namelist', lwp )
421
422	!! REWIND( numnam_cfg ) ! Namelist nambdy_index in configuration namelist : Open boundaries indexes
423	READ ( numnam_cfg, nambdy_index, IOSTAT = ios, ERR = 904 )
424	904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in configuration namelist', lwp )
425	IF(lwm .AND. nprint > 2) WRITE ( numond, nambdy_index )
426
427	SELECT CASE ( TRIM(ctypebdy) )
428	CASE( 'N' )
429	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
430	nbdyind = jpjglo - 2 ! set boundary to whole side of model domain.
431	nbdybeg = 2
432	nbdyend = jpiglo - 1
433	ENDIF
434	nbdysegn = nbdysegn + 1
435	npckgn(nbdysegn) = ib_bdy ! Save bdy package number
436	jpjnob(nbdysegn) = nbdyind
437	jpindt(nbdysegn) = nbdybeg
438	jpinft(nbdysegn) = nbdyend
439	!
440	CASE( 'S' )
441	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
442	nbdyind = 2 ! set boundary to whole side of model domain.
443	nbdybeg = 2
444	nbdyend = jpiglo - 1
445	ENDIF
446	nbdysegs = nbdysegs + 1
447	npckgs(nbdysegs) = ib_bdy ! Save bdy package number
448	jpjsob(nbdysegs) = nbdyind
449	jpisdt(nbdysegs) = nbdybeg
450	jpisft(nbdysegs) = nbdyend
451	!
452	CASE( 'E' )
453	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
454	nbdyind = jpiglo - 2 ! set boundary to whole side of model domain.
455	nbdybeg = 2
456	nbdyend = jpjglo - 1
457	ENDIF
458	nbdysege = nbdysege + 1
459	npckge(nbdysege) = ib_bdy ! Save bdy package number
460	jpieob(nbdysege) = nbdyind
461	jpjedt(nbdysege) = nbdybeg
462	jpjeft(nbdysege) = nbdyend
463	!
464	CASE( 'W' )
465	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
466	nbdyind = 2 ! set boundary to whole side of model domain.
467	nbdybeg = 2
468	nbdyend = jpjglo - 1
469	ENDIF
470	nbdysegw = nbdysegw + 1
471	npckgw(nbdysegw) = ib_bdy ! Save bdy package number
472	jpiwob(nbdysegw) = nbdyind
473	jpjwdt(nbdysegw) = nbdybeg
474	jpjwft(nbdysegw) = nbdyend
475	!
476	CASE DEFAULT ; CALL ctl_stop( 'ctypebdy must be N, S, E or W' )
477	END SELECT
478
479	! For simplicity we assume that in case of straight bdy, arrays have the same length
480	! (even if it is true that last tangential velocity points
481	! are useless). This simplifies a little bit boundary data format (and agrees with format
482	! used so far in obc package)
483
484	nblendta(1:jpbgrd,ib_bdy) = (nbdyend - nbdybeg + 1) * nn_rimwidth(ib_bdy)
485	jpbdtas = MAX(jpbdtas, (nbdyend - nbdybeg + 1))
486	IF (lwp.and.(nn_rimwidth(ib_bdy)>nrimmax)) &
487	& CALL ctl_stop( 'rimwidth must be lower than nrimmax' )
488
489	ELSE ! Read size of arrays in boundary coordinates file.
490	CALL iom_open( cn_coords_file(ib_bdy), inum )
491	DO igrd = 1, jpbgrd
492	id_dummy = iom_varid( inum, 'nbi'//cgrid(igrd), kdimsz=kdimsz )
493	!clem nblendta(igrd,ib_bdy) = kdimsz(1)
494	!clem jpbdtau = MAX(jpbdtau, kdimsz(1))
495	nblendta(igrd,ib_bdy) = MAXVAL(kdimsz)
496	jpbdtau = MAX(jpbdtau, MAXVAL(kdimsz))
497	ENDDO
498	CALL iom_close( inum )
499
500	ENDIF
501
502	ENDDO ! ib_bdy
503
504	IF (nb_bdy>0) THEN
505	jpbdta = MAXVAL(nblendta(1:jpbgrd,1:nb_bdy))
506
507	! Allocate arrays
508	!---------------
509	ALLOCATE( nbidta(jpbdta, jpbgrd, nb_bdy), nbjdta(jpbdta, jpbgrd, nb_bdy), &
510	& nbrdta(jpbdta, jpbgrd, nb_bdy) )
511
512	ALLOCATE( dta_global(jpbdtau, 1, jpk) )
513	IF ( icount>0 ) ALLOCATE( dta_global2(jpbdtas, nrimmax, jpk) )
514	!
515	ENDIF
516
517	! Now look for crossings in user (namelist) defined open boundary segments:
518	!--------------------------------------------------------------------------
519	IF ( icount>0 ) CALL bdy_ctl_seg
520
521	! Calculate global boundary index arrays or read in from file
522	!------------------------------------------------------------
523	! 1. Read global index arrays from boundary coordinates file.
524	DO ib_bdy = 1, nb_bdy
525
526	IF( ln_coords_file(ib_bdy) ) THEN
527
528	CALL iom_open( cn_coords_file(ib_bdy), inum )
529	DO igrd = 1, jpbgrd
530	CALL iom_get( inum, jpdom_unknown, 'nbi'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
531	DO ii = 1,nblendta(igrd,ib_bdy)
532	nbidta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
533	END DO
534	CALL iom_get( inum, jpdom_unknown, 'nbj'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
535	DO ii = 1,nblendta(igrd,ib_bdy)
536	nbjdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
537	END DO
538	CALL iom_get( inum, jpdom_unknown, 'nbr'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
539	DO ii = 1,nblendta(igrd,ib_bdy)
540	nbrdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
541	END DO
542
543	ibr_max = MAXVAL( nbrdta(:,igrd,ib_bdy) )
544	IF(lwp) WRITE(numout,*)
545	IF(lwp) WRITE(numout,*) ' Maximum rimwidth in file is ', ibr_max
546	IF(lwp) WRITE(numout,*) ' nn_rimwidth from namelist is ', nn_rimwidth(ib_bdy)
547	IF (ibr_max < nn_rimwidth(ib_bdy)) &
548	CALL ctl_stop( 'nn_rimwidth is larger than maximum rimwidth in file',cn_coords_file(ib_bdy) )
549	END DO
550	CALL iom_close( inum )
551
552	ENDIF
553
554	ENDDO
555
556	! 2. Now fill indices corresponding to straight open boundary arrays:
557	! East
558	!-----
559	DO iseg = 1, nbdysege
560	ib_bdy = npckge(iseg)
561	!
562	! ------------ T points -------------
563	igrd=1
564	icount=0
565	DO ir = 1, nn_rimwidth(ib_bdy)
566	DO ij = jpjedt(iseg), jpjeft(iseg)
567	icount = icount + 1
568	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
569	nbjdta(icount, igrd, ib_bdy) = ij
570	nbrdta(icount, igrd, ib_bdy) = ir
571	ENDDO
572	ENDDO
573	!
574	! ------------ U points -------------
575	igrd=2
576	icount=0
577	DO ir = 1, nn_rimwidth(ib_bdy)
578	DO ij = jpjedt(iseg), jpjeft(iseg)
579	icount = icount + 1
580	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 1 - ir
581	nbjdta(icount, igrd, ib_bdy) = ij
582	nbrdta(icount, igrd, ib_bdy) = ir
583	ENDDO
584	ENDDO
585	!
586	! ------------ V points -------------
587	igrd=3
588	icount=0
589	DO ir = 1, nn_rimwidth(ib_bdy)
590	! DO ij = jpjedt(iseg), jpjeft(iseg) - 1
591	DO ij = jpjedt(iseg), jpjeft(iseg)
592	icount = icount + 1
593	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
594	nbjdta(icount, igrd, ib_bdy) = ij
595	nbrdta(icount, igrd, ib_bdy) = ir
596	ENDDO
597	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
598	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
599	ENDDO
600	ENDDO
601	!
602	! West
603	!-----
604	DO iseg = 1, nbdysegw
605	ib_bdy = npckgw(iseg)
606	!
607	! ------------ T points -------------
608	igrd=1
609	icount=0
610	DO ir = 1, nn_rimwidth(ib_bdy)
611	DO ij = jpjwdt(iseg), jpjwft(iseg)
612	icount = icount + 1
613	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
614	nbjdta(icount, igrd, ib_bdy) = ij
615	nbrdta(icount, igrd, ib_bdy) = ir
616	ENDDO
617	ENDDO
618	!
619	! ------------ U points -------------
620	igrd=2
621	icount=0
622	DO ir = 1, nn_rimwidth(ib_bdy)
623	DO ij = jpjwdt(iseg), jpjwft(iseg)
624	icount = icount + 1
625	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
626	nbjdta(icount, igrd, ib_bdy) = ij
627	nbrdta(icount, igrd, ib_bdy) = ir
628	ENDDO
629	ENDDO
630	!
631	! ------------ V points -------------
632	igrd=3
633	icount=0
634	DO ir = 1, nn_rimwidth(ib_bdy)
635	! DO ij = jpjwdt(iseg), jpjwft(iseg) - 1
636	DO ij = jpjwdt(iseg), jpjwft(iseg)
637	icount = icount + 1
638	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
639	nbjdta(icount, igrd, ib_bdy) = ij
640	nbrdta(icount, igrd, ib_bdy) = ir
641	ENDDO
642	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
643	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
644	ENDDO
645	ENDDO
646	!
647	! North
648	!-----
649	DO iseg = 1, nbdysegn
650	ib_bdy = npckgn(iseg)
651	!
652	! ------------ T points -------------
653	igrd=1
654	icount=0
655	DO ir = 1, nn_rimwidth(ib_bdy)
656	DO ii = jpindt(iseg), jpinft(iseg)
657	icount = icount + 1
658	nbidta(icount, igrd, ib_bdy) = ii
659	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
660	nbrdta(icount, igrd, ib_bdy) = ir
661	ENDDO
662	ENDDO
663	!
664	! ------------ U points -------------
665	igrd=2
666	icount=0
667	DO ir = 1, nn_rimwidth(ib_bdy)
668	! DO ii = jpindt(iseg), jpinft(iseg) - 1
669	DO ii = jpindt(iseg), jpinft(iseg)
670	icount = icount + 1
671	nbidta(icount, igrd, ib_bdy) = ii
672	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
673	nbrdta(icount, igrd, ib_bdy) = ir
674	ENDDO
675	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
676	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
677	ENDDO
678	!
679	! ------------ V points -------------
680	igrd=3
681	icount=0
682	DO ir = 1, nn_rimwidth(ib_bdy)
683	DO ii = jpindt(iseg), jpinft(iseg)
684	icount = icount + 1
685	nbidta(icount, igrd, ib_bdy) = ii
686	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 1 - ir
687	nbrdta(icount, igrd, ib_bdy) = ir
688	ENDDO
689	ENDDO
690	ENDDO
691	!
692	! South
693	!-----
694	DO iseg = 1, nbdysegs
695	ib_bdy = npckgs(iseg)
696	!
697	! ------------ T points -------------
698	igrd=1
699	icount=0
700	DO ir = 1, nn_rimwidth(ib_bdy)
701	DO ii = jpisdt(iseg), jpisft(iseg)
702	icount = icount + 1
703	nbidta(icount, igrd, ib_bdy) = ii
704	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
705	nbrdta(icount, igrd, ib_bdy) = ir
706	ENDDO
707	ENDDO
708	!
709	! ------------ U points -------------
710	igrd=2
711	icount=0
712	DO ir = 1, nn_rimwidth(ib_bdy)
713	! DO ii = jpisdt(iseg), jpisft(iseg) - 1
714	DO ii = jpisdt(iseg), jpisft(iseg)
715	icount = icount + 1
716	nbidta(icount, igrd, ib_bdy) = ii
717	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
718	nbrdta(icount, igrd, ib_bdy) = ir
719	ENDDO
720	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
721	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
722	ENDDO
723	!
724	! ------------ V points -------------
725	igrd=3
726	icount=0
727	DO ir = 1, nn_rimwidth(ib_bdy)
728	DO ii = jpisdt(iseg), jpisft(iseg)
729	icount = icount + 1
730	nbidta(icount, igrd, ib_bdy) = ii
731	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
732	nbrdta(icount, igrd, ib_bdy) = ir
733	ENDDO
734	ENDDO
735	ENDDO
736
737	! Deal with duplicated points
738	!-----------------------------
739	! We assign negative indices to duplicated points (to remove them from bdy points to be updated)
740	! if their distance to the bdy is greater than the other
741	! If their distance are the same, just keep only one to avoid updating a point twice
742	DO igrd = 1, jpbgrd
743	DO ib_bdy1 = 1, nb_bdy
744	DO ib_bdy2 = 1, nb_bdy
745	IF (ib_bdy1/=ib_bdy2) THEN
746	DO ib1 = 1, nblendta(igrd,ib_bdy1)
747	DO ib2 = 1, nblendta(igrd,ib_bdy2)
748	IF ((nbidta(ib1, igrd, ib_bdy1)==nbidta(ib2, igrd, ib_bdy2)).AND. &
749	& (nbjdta(ib1, igrd, ib_bdy1)==nbjdta(ib2, igrd, ib_bdy2))) THEN
750	! IF ((lwp).AND.(igrd==1)) WRITE(numout,*) ' found coincident point ji, jj:', &
751	! & nbidta(ib1, igrd, ib_bdy1), &
752	! & nbjdta(ib2, igrd, ib_bdy2)
753	! keep only points with the lowest distance to boundary:
754	IF (nbrdta(ib1, igrd, ib_bdy1)<nbrdta(ib2, igrd, ib_bdy2)) THEN
755	nbidta(ib2, igrd, ib_bdy2) =-ib_bdy2
756	nbjdta(ib2, igrd, ib_bdy2) =-ib_bdy2
757	ELSEIF (nbrdta(ib1, igrd, ib_bdy1)>nbrdta(ib2, igrd, ib_bdy2)) THEN
758	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
759	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
760	! Arbitrary choice if distances are the same:
761	ELSE
762	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
763	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
764	ENDIF
765	END IF
766	END DO
767	END DO
768	ENDIF
769	END DO
770	END DO
771	END DO
772
773	! Work out dimensions of boundary data on each processor
774	! ------------------------------------------------------
775
776	! Rather assume that boundary data indices are given on global domain
777	! TO BE DISCUSSED ?
778	! iw = mig(1) + 1 ! if monotasking and no zoom, iw=2
779	! ie = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1
780	! is = mjg(1) + 1 ! if monotasking and no zoom, is=2
781	! in = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1
782	iwe = mig(1) - jpizoom + 2 ! if monotasking and no zoom, iw=2
783	ies = mig(1) + nlci - jpizoom - 1 ! if monotasking and no zoom, ie=jpim1
784	iso = mjg(1) - jpjzoom + 2 ! if monotasking and no zoom, is=2
785	ino = mjg(1) + nlcj - jpjzoom - 1 ! if monotasking and no zoom, in=jpjm1
786
787	ALLOCATE( nbondi_bdy(nb_bdy))
788	ALLOCATE( nbondj_bdy(nb_bdy))
789	nbondi_bdy(:)=2
790	nbondj_bdy(:)=2
791	ALLOCATE( nbondi_bdy_b(nb_bdy))
792	ALLOCATE( nbondj_bdy_b(nb_bdy))
793	nbondi_bdy_b(:)=2
794	nbondj_bdy_b(:)=2
795
796	! Work out dimensions of boundary data on each neighbour process
797	IF(nbondi .eq. 0) THEN
798	iw_b(1) = jpizoom + nimppt(nowe+1)
799	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
800	is_b(1) = jpjzoom + njmppt(nowe+1)
801	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
802
803	iw_b(2) = jpizoom + nimppt(noea+1)
804	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
805	is_b(2) = jpjzoom + njmppt(noea+1)
806	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
807	ELSEIF(nbondi .eq. 1) THEN
808	iw_b(1) = jpizoom + nimppt(nowe+1)
809	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
810	is_b(1) = jpjzoom + njmppt(nowe+1)
811	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
812	ELSEIF(nbondi .eq. -1) THEN
813	iw_b(2) = jpizoom + nimppt(noea+1)
814	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
815	is_b(2) = jpjzoom + njmppt(noea+1)
816	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
817	ENDIF
818
819	IF(nbondj .eq. 0) THEN
820	iw_b(3) = jpizoom + nimppt(noso+1)
821	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
822	is_b(3) = jpjzoom + njmppt(noso+1)
823	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
824
825	iw_b(4) = jpizoom + nimppt(nono+1)
826	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
827	is_b(4) = jpjzoom + njmppt(nono+1)
828	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
829	ELSEIF(nbondj .eq. 1) THEN
830	iw_b(3) = jpizoom + nimppt(noso+1)
831	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
832	is_b(3) = jpjzoom + njmppt(noso+1)
833	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
834	ELSEIF(nbondj .eq. -1) THEN
835	iw_b(4) = jpizoom + nimppt(nono+1)
836	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
837	is_b(4) = jpjzoom + njmppt(nono+1)
838	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
839	ENDIF
840
841	DO ib_bdy = 1, nb_bdy
842	DO igrd = 1, jpbgrd
843	icount = 0
844	icountr = 0
845	idx_bdy(ib_bdy)%nblen(igrd) = 0
846	idx_bdy(ib_bdy)%nblenrim(igrd) = 0
847	DO ib = 1, nblendta(igrd,ib_bdy)
848	! check that data is in correct order in file
849	ibm1 = MAX(1,ib-1)
850	IF(lwp) THEN ! Since all procs read global data only need to do this check on one proc...
851	IF( nbrdta(ib,igrd,ib_bdy) < nbrdta(ibm1,igrd,ib_bdy) ) THEN
852	CALL ctl_stop('bdy_init : ERROR : boundary data in file must be defined ', &
853	& ' in order of distance from edge nbr A utility for re-ordering ', &
854	& ' boundary coordinates and data files exists in the TOOLS/OBC directory')
855	ENDIF
856	ENDIF
857	! check if point is in local domain
858	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
859	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino ) THEN
860	!
861	icount = icount + 1
862	!
863	IF( nbrdta(ib,igrd,ib_bdy) == 1 ) icountr = icountr+1
864	ENDIF
865	ENDDO
866	idx_bdy(ib_bdy)%nblenrim(igrd) = icountr !: length of rim boundary data on each proc
867	idx_bdy(ib_bdy)%nblen (igrd) = icount !: length of boundary data on each proc
868	ENDDO ! igrd
869
870	! Allocate index arrays for this boundary set
871	!--------------------------------------------
872	ilen1 = MAXVAL(idx_bdy(ib_bdy)%nblen(:))
873	ALLOCATE( idx_bdy(ib_bdy)%nbi(ilen1,jpbgrd) )
874	ALLOCATE( idx_bdy(ib_bdy)%nbj(ilen1,jpbgrd) )
875	ALLOCATE( idx_bdy(ib_bdy)%nbr(ilen1,jpbgrd) )
876	ALLOCATE( idx_bdy(ib_bdy)%nbd(ilen1,jpbgrd) )
877	ALLOCATE( idx_bdy(ib_bdy)%nbdout(ilen1,jpbgrd) )
878	ALLOCATE( idx_bdy(ib_bdy)%nbmap(ilen1,jpbgrd) )
879	ALLOCATE( idx_bdy(ib_bdy)%nbw(ilen1,jpbgrd) )
880	ALLOCATE( idx_bdy(ib_bdy)%flagu(ilen1,jpbgrd) )
881	ALLOCATE( idx_bdy(ib_bdy)%flagv(ilen1,jpbgrd) )
882
883	! Dispatch mapping indices and discrete distances on each processor
884	! -----------------------------------------------------------------
885
886	com_east = 0
887	com_west = 0
888	com_south = 0
889	com_north = 0
890
891	com_east_b = 0
892	com_west_b = 0
893	com_south_b = 0
894	com_north_b = 0
895
896	DO igrd = 1, jpbgrd
897	icount = 0
898	! Loop on rimwidth to ensure outermost points come first in the local arrays.
899	DO ir=1, nn_rimwidth(ib_bdy)
900	DO ib = 1, nblendta(igrd,ib_bdy)
901	! check if point is in local domain and equals ir
902	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
903	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino .AND. &
904	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
905	!
906	icount = icount + 1
907
908	! Rather assume that boundary data indices are given on global domain
909	! TO BE DISCUSSED ?
910	! idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+1
911	! idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+1
912	idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+jpizoom
913	idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+jpjzoom
914	! check if point has to be sent
915	ii = idx_bdy(ib_bdy)%nbi(icount,igrd)
916	ij = idx_bdy(ib_bdy)%nbj(icount,igrd)
917	if((com_east .ne. 1) .and. (ii .eq. (nlci-1)) .and. (nbondi .le. 0)) then
918	com_east = 1
919	elseif((com_west .ne. 1) .and. (ii .eq. 2) .and. (nbondi .ge. 0) .and. (nbondi .ne. 2)) then
920	com_west = 1
921	endif
922	if((com_south .ne. 1) .and. (ij .eq. 2) .and. (nbondj .ge. 0) .and. (nbondj .ne. 2)) then
923	com_south = 1
924	elseif((com_north .ne. 1) .and. (ij .eq. (nlcj-1)) .and. (nbondj .le. 0)) then
925	com_north = 1
926	endif
927	idx_bdy(ib_bdy)%nbr(icount,igrd) = nbrdta(ib,igrd,ib_bdy)
928	idx_bdy(ib_bdy)%nbmap(icount,igrd) = ib
929	ENDIF
930	! check if point has to be received from a neighbour
931	IF(nbondi .eq. 0) THEN
932	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
933	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
934	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
935	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
936	if((com_west_b .ne. 1) .and. (ii .eq. (nlcit(nowe+1)-1))) then
937	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
938	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
939	com_south = 1
940	elseif((ij .eq. nlcjt(nowe+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
941	com_north = 1
942	endif
943	com_west_b = 1
944	endif
945	ENDIF
946	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
947	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
948	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
949	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
950	if((com_east_b .ne. 1) .and. (ii .eq. 2)) then
951	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
952	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
953	com_south = 1
954	elseif((ij .eq. nlcjt(noea+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
955	com_north = 1
956	endif
957	com_east_b = 1
958	endif
959	ENDIF
960	ELSEIF(nbondi .eq. 1) THEN
961	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
962	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
963	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
964	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
965	if((com_west_b .ne. 1) .and. (ii .eq. (nlcit(nowe+1)-1))) then
966	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
967	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
968	com_south = 1
969	elseif((ij .eq. nlcjt(nowe+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
970	com_north = 1
971	endif
972	com_west_b = 1
973	endif
974	ENDIF
975	ELSEIF(nbondi .eq. -1) THEN
976	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
977	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
978	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
979	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
980	if((com_east_b .ne. 1) .and. (ii .eq. 2)) then
981	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
982	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
983	com_south = 1
984	elseif((ij .eq. nlcjt(noea+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
985	com_north = 1
986	endif
987	com_east_b = 1
988	endif
989	ENDIF
990	ENDIF
991	IF(nbondj .eq. 0) THEN
992	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
993	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
994	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
995	com_north_b = 1
996	ENDIF
997	IF(com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 &
998	&.OR. nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
999	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1000	com_south_b = 1
1001	ENDIF
1002	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1003	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1004	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1005	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1006	if((com_south_b .ne. 1) .and. (ij .eq. (nlcjt(noso+1)-1))) then
1007	com_south_b = 1
1008	endif
1009	ENDIF
1010	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1011	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1012	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1013	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1014	if((com_north_b .ne. 1) .and. (ij .eq. 2)) then
1015	com_north_b = 1
1016	endif
1017	ENDIF
1018	ELSEIF(nbondj .eq. 1) THEN
1019	IF( com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 .OR. &
1020	& nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
1021	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1022	com_south_b = 1
1023	ENDIF
1024	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1025	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1026	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1027	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1028	if((com_south_b .ne. 1) .and. (ij .eq. (nlcjt(noso+1)-1))) then
1029	com_south_b = 1
1030	endif
1031	ENDIF
1032	ELSEIF(nbondj .eq. -1) THEN
1033	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
1034	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
1035	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1036	com_north_b = 1
1037	ENDIF
1038	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1039	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1040	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1041	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1042	if((com_north_b .ne. 1) .and. (ij .eq. 2)) then
1043	com_north_b = 1
1044	endif
1045	ENDIF
1046	ENDIF
1047	ENDDO
1048	ENDDO
1049	ENDDO
1050
1051	! definition of the i- and j- direction local boundaries arrays
1052	! used for sending the boudaries
1053	IF((com_east .eq. 1) .and. (com_west .eq. 1)) THEN
1054	nbondi_bdy(ib_bdy) = 0
1055	ELSEIF ((com_east .eq. 1) .and. (com_west .eq. 0)) THEN
1056	nbondi_bdy(ib_bdy) = -1
1057	ELSEIF ((com_east .eq. 0) .and. (com_west .eq. 1)) THEN
1058	nbondi_bdy(ib_bdy) = 1
1059	ENDIF
1060
1061	IF((com_north .eq. 1) .and. (com_south .eq. 1)) THEN
1062	nbondj_bdy(ib_bdy) = 0
1063	ELSEIF ((com_north .eq. 1) .and. (com_south .eq. 0)) THEN
1064	nbondj_bdy(ib_bdy) = -1
1065	ELSEIF ((com_north .eq. 0) .and. (com_south .eq. 1)) THEN
1066	nbondj_bdy(ib_bdy) = 1
1067	ENDIF
1068
1069	! definition of the i- and j- direction local boundaries arrays
1070	! used for receiving the boudaries
1071	IF((com_east_b .eq. 1) .and. (com_west_b .eq. 1)) THEN
1072	nbondi_bdy_b(ib_bdy) = 0
1073	ELSEIF ((com_east_b .eq. 1) .and. (com_west_b .eq. 0)) THEN
1074	nbondi_bdy_b(ib_bdy) = -1
1075	ELSEIF ((com_east_b .eq. 0) .and. (com_west_b .eq. 1)) THEN
1076	nbondi_bdy_b(ib_bdy) = 1
1077	ENDIF
1078
1079	IF((com_north_b .eq. 1) .and. (com_south_b .eq. 1)) THEN
1080	nbondj_bdy_b(ib_bdy) = 0
1081	ELSEIF ((com_north_b .eq. 1) .and. (com_south_b .eq. 0)) THEN
1082	nbondj_bdy_b(ib_bdy) = -1
1083	ELSEIF ((com_north_b .eq. 0) .and. (com_south_b .eq. 1)) THEN
1084	nbondj_bdy_b(ib_bdy) = 1
1085	ENDIF
1086
1087	! Compute rim weights for FRS scheme
1088	! ----------------------------------
1089	DO igrd = 1, jpbgrd
1090	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1091	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1092	idx_bdy(ib_bdy)%nbw(ib,igrd) = 1.- TANH( FLOAT( nbr - 1 ) *0.5 ) ! tanh formulation
1093	! idx_bdy(ib_bdy)%nbw(ib,igrd) = (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))**2. ! quadratic
1094	! idx_bdy(ib_bdy)%nbw(ib,igrd) = FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)) ! linear
1095	END DO
1096	END DO
1097
1098	! Compute damping coefficients
1099	! ----------------------------
1100	DO igrd = 1, jpbgrd
1101	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1102	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1103	idx_bdy(ib_bdy)%nbd(ib,igrd) = 1. / ( rn_time_dmp(ib_bdy) * rday ) &
1104	& (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))*2. ! quadratic
1105	idx_bdy(ib_bdy)%nbdout(ib,igrd) = 1. / ( rn_time_dmp_out(ib_bdy) * rday ) &
1106	& (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))*2. ! quadratic
1107	END DO
1108	END DO
1109
1110	ENDDO
1111
1112	! ------------------------------------------------------
1113	! Initialise masks and find normal/tangential directions
1114	! ------------------------------------------------------
1115
1116	! Read global 2D mask at T-points: bdytmask
1117	! -----------------------------------------
1118	! bdytmask = 1 on the computational domain AND on open boundaries
1119	! = 0 elsewhere
1120
1121	IF( ln_mask_file ) THEN
1122	CALL iom_open( cn_mask_file, inum )
1123	CALL iom_get ( inum, jpdom_data, 'bdy_msk', bdytmask(:,:) )
1124	CALL iom_close( inum )
1125
1126	! Derive mask on U and V grid from mask on T grid
1127	bdyumask(:,:) = 0.e0
1128	bdyvmask(:,:) = 0.e0
1129	DO ij=1, jpjm1
1130	DO ii=1, jpim1
1131	bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij )
1132	bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1)
1133	END DO
1134	END DO
1135	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1136
1137
1138	! Mask corrections
1139	! ----------------
1140	DO ik = 1, jpkm1
1141	DO ij = 1, jpj
1142	DO ii = 1, jpi
1143	tmask(ii,ij,ik) = tmask(ii,ij,ik) * bdytmask(ii,ij)
1144	umask(ii,ij,ik) = umask(ii,ij,ik) * bdyumask(ii,ij)
1145	vmask(ii,ij,ik) = vmask(ii,ij,ik) * bdyvmask(ii,ij)
1146	bmask(ii,ij) = bmask(ii,ij) * bdytmask(ii,ij)
1147	END DO
1148	END DO
1149	END DO
1150
1151	DO ik = 1, jpkm1
1152	DO ij = 2, jpjm1
1153	DO ii = 2, jpim1
1154	fmask(ii,ij,ik) = fmask(ii,ij,ik) * bdytmask(ii,ij ) * bdytmask(ii+1,ij ) &
1155	& * bdytmask(ii,ij+1) * bdytmask(ii+1,ij+1)
1156	END DO
1157	END DO
1158	END DO
1159
1160	tmask_i (:,:) = ssmask(:,:) * tmask_i(:,:)
1161
1162	ENDIF ! ln_mask_file=.TRUE.
1163
1164	bdytmask(:,:) = ssmask(:,:)
1165	IF( .not. ln_mask_file ) THEN
1166	! If .not. ln_mask_file then we need to derive mask on U and V grid
1167	! from mask on T grid here.
1168	bdyumask(:,:) = 0.e0
1169	bdyvmask(:,:) = 0.e0
1170	DO ij=1, jpjm1
1171	DO ii=1, jpim1
1172	bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij )
1173	bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1)
1174	END DO
1175	END DO
1176	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1177	ENDIF
1178
1179	! bdy masks and bmask are now set to zero on boundary points:
1180	igrd = 1 ! In the free surface case, bmask is at T-points
1181	DO ib_bdy = 1, nb_bdy
1182	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1183	bmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1184	ENDDO
1185	ENDDO
1186	!
1187	igrd = 1
1188	DO ib_bdy = 1, nb_bdy
1189	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1190	bdytmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1191	ENDDO
1192	ENDDO
1193	!
1194	igrd = 2
1195	DO ib_bdy = 1, nb_bdy
1196	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1197	bdyumask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1198	ENDDO
1199	ENDDO
1200	!
1201	igrd = 3
1202	DO ib_bdy = 1, nb_bdy
1203	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1204	bdyvmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1205	ENDDO
1206	ENDDO
1207
1208	! For the flagu/flagv calculation below we require a version of fmask without
1209	! the land boundary condition (shlat) included:
1210	CALL wrk_alloc(jpi,jpj,zfmask)
1211	DO ij = 2, jpjm1
1212	DO ii = 2, jpim1
1213	zfmask(ii,ij) = tmask(ii,ij ,1) * tmask(ii+1,ij ,1) &
1214	& * tmask(ii,ij+1,1) * tmask(ii+1,ij+1,1)
1215	END DO
1216	END DO
1217
1218	! Lateral boundary conditions
1219	CALL lbc_lnk( zfmask , 'F', 1. )
1220	CALL lbc_lnk( fmask , 'F', 1. ) ; CALL lbc_lnk( bdytmask(:,:), 'T', 1. )
1221	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. )
1222
1223	DO ib_bdy = 1, nb_bdy ! Indices and directions of rim velocity components
1224
1225	idx_bdy(ib_bdy)%flagu(:,:) = 0.e0
1226	idx_bdy(ib_bdy)%flagv(:,:) = 0.e0
1227	icount = 0
1228
1229	! Calculate relationship of U direction to the local orientation of the boundary
1230	! flagu = -1 : u component is normal to the dynamical boundary and its direction is outward
1231	! flagu = 0 : u is tangential
1232	! flagu = 1 : u is normal to the boundary and is direction is inward
1233
1234	DO igrd = 1,jpbgrd
1235	SELECT CASE( igrd )
1236	CASE( 1 )
1237	pmask => umask(:,:,1)
1238	i_offset = 0
1239	CASE( 2 )
1240	pmask => bdytmask
1241	i_offset = 1
1242	CASE( 3 )
1243	pmask => zfmask(:,:)
1244	i_offset = 0
1245	END SELECT
1246	icount = 0
1247	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1248	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1249	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1250	zefl = pmask(nbi+i_offset-1,nbj)
1251	zwfl = pmask(nbi+i_offset,nbj)
1252	! This error check only works if you are using the bdyXmask arrays
1253	IF( i_offset == 1 .and. zefl + zwfl == 2 ) THEN
1254	icount = icount + 1
1255	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1256	ELSE
1257	idx_bdy(ib_bdy)%flagu(ib,igrd) = -zefl + zwfl
1258	ENDIF
1259	END DO
1260	IF( icount /= 0 ) THEN
1261	IF(lwp) WRITE(numout,*)
1262	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1263	' are not boundary points (flagu calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1264	IF(lwp) WRITE(numout,*) ' ========== '
1265	IF(lwp) WRITE(numout,*)
1266	nstop = nstop + 1
1267	ENDIF
1268	END DO
1269
1270	! Calculate relationship of V direction to the local orientation of the boundary
1271	! flagv = -1 : v component is normal to the dynamical boundary but its direction is outward
1272	! flagv = 0 : v is tangential
1273	! flagv = 1 : v is normal to the boundary and is direction is inward
1274
1275	DO igrd = 1,jpbgrd
1276	SELECT CASE( igrd )
1277	CASE( 1 )
1278	pmask => vmask(:,:,1)
1279	j_offset = 0
1280	CASE( 2 )
1281	pmask => zfmask(:,:)
1282	j_offset = 0
1283	CASE( 3 )
1284	pmask => bdytmask
1285	j_offset = 1
1286	END SELECT
1287	icount = 0
1288	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1289	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1290	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1291	znfl = pmask(nbi,nbj+j_offset-1 )
1292	zsfl = pmask(nbi,nbj+j_offset)
1293	! This error check only works if you are using the bdyXmask arrays
1294	IF( j_offset == 1 .and. znfl + zsfl == 2 ) THEN
1295	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1296	icount = icount + 1
1297	ELSE
1298	idx_bdy(ib_bdy)%flagv(ib,igrd) = -znfl + zsfl
1299	END IF
1300	END DO
1301	IF( icount /= 0 ) THEN
1302	IF(lwp) WRITE(numout,*)
1303	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1304	' are not boundary points (flagv calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1305	IF(lwp) WRITE(numout,*) ' ========== '
1306	IF(lwp) WRITE(numout,*)
1307	nstop = nstop + 1
1308	ENDIF
1309	END DO
1310
1311	END DO
1312
1313	! Compute total lateral surface for volume correction:
1314	! ----------------------------------------------------
1315	! JC: this must be done at each time step with key_vvl
1316	bdysurftot = 0.e0
1317	IF( ln_vol ) THEN
1318	igrd = 2 ! Lateral surface at U-points
1319	DO ib_bdy = 1, nb_bdy
1320	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1321	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1322	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1323	flagu => idx_bdy(ib_bdy)%flagu(ib,igrd)
1324	bdysurftot = bdysurftot + hu (nbi , nbj) &
1325	& * e2u (nbi , nbj) * ABS( flagu ) &
1326	& * tmask_i(nbi , nbj) &
1327	& * tmask_i(nbi+1, nbj)
1328	ENDDO
1329	ENDDO
1330
1331	igrd=3 ! Add lateral surface at V-points
1332	DO ib_bdy = 1, nb_bdy
1333	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1334	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1335	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1336	flagv => idx_bdy(ib_bdy)%flagv(ib,igrd)
1337	bdysurftot = bdysurftot + hv (nbi, nbj ) &
1338	& * e1v (nbi, nbj ) * ABS( flagv ) &
1339	& * tmask_i(nbi, nbj ) &
1340	& * tmask_i(nbi, nbj+1)
1341	ENDDO
1342	ENDDO
1343	!
1344	IF( lk_mpp ) CALL mpp_sum( bdysurftot ) ! sum over the global domain
1345	END IF
1346	!
1347	! Tidy up
1348	!--------
1349	IF (nb_bdy>0) THEN
1350	DEALLOCATE(nbidta, nbjdta, nbrdta)
1351	ENDIF
1352
1353	IF(lwp .AND. lflush) CALL flush(numout)
1354
1355	CALL wrk_dealloc(jpi,jpj,zfmask)
1356
1357	IF( nn_timing == 1 ) CALL timing_stop('bdy_init')
1358
1359	END SUBROUTINE bdy_init
1360
1361	SUBROUTINE bdy_ctl_seg
1362	!!----------------------------------------------------------------------
1363	!! * ROUTINE bdy_ctl_seg *
1364	!!
1365	!! ** Purpose : Check straight open boundary segments location
1366	!!
1367	!! ** Method : - Look for open boundary corners
1368	!! - Check that segments start or end on land
1369	!!----------------------------------------------------------------------
1370	INTEGER :: ib, ib1, ib2, ji ,jj, itest
1371	INTEGER, DIMENSION(jp_nseg,2) :: icorne, icornw, icornn, icorns
1372	REAL(wp), DIMENSION(2) :: ztestmask
1373	!!----------------------------------------------------------------------
1374	!
1375	IF (lwp) WRITE(numout,*) ' '
1376	IF (lwp) WRITE(numout,*) 'bdy_ctl_seg: Check analytical segments'
1377	IF (lwp) WRITE(numout,*) '~~~~~~~~~~~~'
1378	!
1379	IF(lwp) WRITE(numout,*) 'Number of east segments : ', nbdysege
1380	IF(lwp) WRITE(numout,*) 'Number of west segments : ', nbdysegw
1381	IF(lwp) WRITE(numout,*) 'Number of north segments : ', nbdysegn
1382	IF(lwp) WRITE(numout,*) 'Number of south segments : ', nbdysegs
1383	! 1. Check bounds
1384	!----------------
1385	DO ib = 1, nbdysegn
1386	IF (lwp) WRITE(numout,) '*check north seg bounds pckg: ', npckgn(ib)
1387	IF ((jpjnob(ib).ge.jpjglo-1).or.&
1388	&(jpjnob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1389	IF (jpindt(ib).ge.jpinft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1390	IF (jpindt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1391	IF (jpinft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1392	END DO
1393	!
1394	DO ib = 1, nbdysegs
1395	IF (lwp) WRITE(numout,) '*check south seg bounds pckg: ', npckgs(ib)
1396	IF ((jpjsob(ib).ge.jpjglo-1).or.&
1397	&(jpjsob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1398	IF (jpisdt(ib).ge.jpisft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1399	IF (jpisdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1400	IF (jpisft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1401	END DO
1402	!
1403	DO ib = 1, nbdysege
1404	IF (lwp) WRITE(numout,) '*check east seg bounds pckg: ', npckge(ib)
1405	IF ((jpieob(ib).ge.jpiglo-1).or.&
1406	&(jpieob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1407	IF (jpjedt(ib).ge.jpjeft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1408	IF (jpjedt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1409	IF (jpjeft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1410	END DO
1411	!
1412	DO ib = 1, nbdysegw
1413	IF (lwp) WRITE(numout,) '*check west seg bounds pckg: ', npckgw(ib)
1414	IF ((jpiwob(ib).ge.jpiglo-1).or.&
1415	&(jpiwob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1416	IF (jpjwdt(ib).ge.jpjwft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1417	IF (jpjwdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1418	IF (jpjwft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1419	ENDDO
1420	!
1421	!
1422	! 2. Look for segment crossings
1423	!------------------------------
1424	IF (lwp) WRITE(numout,) '*Look for segments corners :'
1425	!
1426	itest = 0 ! corner number
1427	!
1428	! flag to detect if start or end of open boundary belongs to a corner
1429	! if not (=0), it must be on land.
1430	! if a corner is detected, save bdy package number for further tests
1431	icorne(:,:)=0. ; icornw(:,:)=0. ; icornn(:,:)=0. ; icorns(:,:)=0.
1432	! South/West crossings
1433	IF ((nbdysegw > 0).AND.(nbdysegs > 0)) THEN
1434	DO ib1 = 1, nbdysegw
1435	DO ib2 = 1, nbdysegs
1436	IF (( jpisdt(ib2)<=jpiwob(ib1)).AND. &
1437	& ( jpisft(ib2)>=jpiwob(ib1)).AND. &
1438	& ( jpjwdt(ib1)<=jpjsob(ib2)).AND. &
1439	& ( jpjwft(ib1)>=jpjsob(ib2))) THEN
1440	IF ((jpjwdt(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpiwob(ib1))) THEN
1441	! We have a possible South-West corner
1442	! WRITE(numout,*) ' Found a South-West corner at (i,j): ', jpisdt(ib2), jpjwdt(ib1)
1443	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgs(ib2)
1444	icornw(ib1,1) = npckgs(ib2)
1445	icorns(ib2,1) = npckgw(ib1)
1446	ELSEIF ((jpisft(ib2)==jpiwob(ib1)).AND.(jpjwft(ib1)==jpjsob(ib2))) THEN
1447	IF(lwp) WRITE(numout,*)
1448	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1449	& jpisft(ib2), jpjwft(ib1)
1450	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1451	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1452	& ' and South segment: ',npckgs(ib2)
1453	IF(lwp) WRITE(numout,*)
1454	nstop = nstop + 1
1455	ELSE
1456	IF(lwp) WRITE(numout,*)
1457	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and West Open boundary indices'
1458	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1) , &
1459	& ' and South segment: ',npckgs(ib2)
1460	IF(lwp) WRITE(numout,*)
1461	nstop = nstop+1
1462	END IF
1463	END IF
1464	END DO
1465	END DO
1466	END IF
1467	!
1468	! South/East crossings
1469	IF ((nbdysege > 0).AND.(nbdysegs > 0)) THEN
1470	DO ib1 = 1, nbdysege
1471	DO ib2 = 1, nbdysegs
1472	IF (( jpisdt(ib2)<=jpieob(ib1)+1).AND. &
1473	& ( jpisft(ib2)>=jpieob(ib1)+1).AND. &
1474	& ( jpjedt(ib1)<=jpjsob(ib2) ).AND. &
1475	& ( jpjeft(ib1)>=jpjsob(ib2) )) THEN
1476	IF ((jpjedt(ib1)==jpjsob(ib2)).AND.(jpisft(ib2)==jpieob(ib1)+1)) THEN
1477	! We have a possible South-East corner
1478	! WRITE(numout,*) ' Found a South-East corner at (i,j): ', jpisft(ib2), jpjedt(ib1)
1479	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgs(ib2)
1480	icorne(ib1,1) = npckgs(ib2)
1481	icorns(ib2,2) = npckge(ib1)
1482	ELSEIF ((jpjeft(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpieob(ib1)+1)) THEN
1483	IF(lwp) WRITE(numout,*)
1484	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1485	& jpisdt(ib2), jpjeft(ib1)
1486	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1487	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1488	& ' and South segment: ',npckgs(ib2)
1489	IF(lwp) WRITE(numout,*)
1490	nstop = nstop + 1
1491	ELSE
1492	IF(lwp) WRITE(numout,*)
1493	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and East Open boundary indices'
1494	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1495	& ' and South segment: ',npckgs(ib2)
1496	IF(lwp) WRITE(numout,*)
1497	nstop = nstop + 1
1498	END IF
1499	END IF
1500	END DO
1501	END DO
1502	END IF
1503	!
1504	! North/West crossings
1505	IF ((nbdysegn > 0).AND.(nbdysegw > 0)) THEN
1506	DO ib1 = 1, nbdysegw
1507	DO ib2 = 1, nbdysegn
1508	IF (( jpindt(ib2)<=jpiwob(ib1) ).AND. &
1509	& ( jpinft(ib2)>=jpiwob(ib1) ).AND. &
1510	& ( jpjwdt(ib1)<=jpjnob(ib2)+1).AND. &
1511	& ( jpjwft(ib1)>=jpjnob(ib2)+1)) THEN
1512	IF ((jpjwft(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpiwob(ib1))) THEN
1513	! We have a possible North-West corner
1514	! WRITE(numout,*) ' Found a North-West corner at (i,j): ', jpindt(ib2), jpjwft(ib1)
1515	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgn(ib2)
1516	icornw(ib1,2) = npckgn(ib2)
1517	icornn(ib2,1) = npckgw(ib1)
1518	ELSEIF ((jpjwdt(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpiwob(ib1))) THEN
1519	IF(lwp) WRITE(numout,*)
1520	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1521	& jpinft(ib2), jpjwdt(ib1)
1522	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1523	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1524	& ' and North segment: ',npckgn(ib2)
1525	IF(lwp) WRITE(numout,*)
1526	nstop = nstop + 1
1527	ELSE
1528	IF(lwp) WRITE(numout,*)
1529	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and West Open boundary indices'
1530	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1), &
1531	& ' and North segment: ',npckgn(ib2)
1532	IF(lwp) WRITE(numout,*)
1533	nstop = nstop + 1
1534	END IF
1535	END IF
1536	END DO
1537	END DO
1538	END IF
1539	!
1540	! North/East crossings
1541	IF ((nbdysegn > 0).AND.(nbdysege > 0)) THEN
1542	DO ib1 = 1, nbdysege
1543	DO ib2 = 1, nbdysegn
1544	IF (( jpindt(ib2)<=jpieob(ib1)+1).AND. &
1545	& ( jpinft(ib2)>=jpieob(ib1)+1).AND. &
1546	& ( jpjedt(ib1)<=jpjnob(ib2)+1).AND. &
1547	& ( jpjeft(ib1)>=jpjnob(ib2)+1)) THEN
1548	IF ((jpjeft(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpieob(ib1)+1)) THEN
1549	! We have a possible North-East corner
1550	! WRITE(numout,*) ' Found a North-East corner at (i,j): ', jpinft(ib2), jpjeft(ib1)
1551	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgn(ib2)
1552	icorne(ib1,2) = npckgn(ib2)
1553	icornn(ib2,2) = npckge(ib1)
1554	ELSEIF ((jpjedt(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpieob(ib1)+1)) THEN
1555	IF(lwp) WRITE(numout,*)
1556	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1557	& jpindt(ib2), jpjedt(ib1)
1558	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1559	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1560	& ' and North segment: ',npckgn(ib2)
1561	IF(lwp) WRITE(numout,*)
1562	nstop = nstop + 1
1563	ELSE
1564	IF(lwp) WRITE(numout,*)
1565	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and East Open boundary indices'
1566	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1567	& ' and North segment: ',npckgn(ib2)
1568	IF(lwp) WRITE(numout,*)
1569	nstop = nstop + 1
1570	END IF
1571	END IF
1572	END DO
1573	END DO
1574	END IF
1575	!
1576	! 3. Check if segment extremities are on land
1577	!--------------------------------------------
1578	!
1579	! West segments
1580	DO ib = 1, nbdysegw
1581	! get mask at boundary extremities:
1582	ztestmask(1:2)=0.
1583	DO ji = 1, jpi
1584	DO jj = 1, jpj
1585	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1586	& ((jj + njmpp - 1) == jpjwdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1587	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1588	& ((jj + njmpp - 1) == jpjwft(ib))) ztestmask(2)=tmask(ji,jj,1)
1589	END DO
1590	END DO
1591	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1592
1593	IF (ztestmask(1)==1) THEN
1594	IF (icornw(ib,1)==0) THEN
1595	IF(lwp) WRITE(numout,*)
1596	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(ib)
1597	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1598	IF(lwp) WRITE(numout,*)
1599	nstop = nstop + 1
1600	ELSE
1601	! This is a corner
1602	IF(lwp) WRITE(numout,*) 'Found a South-West corner at (i,j): ', jpiwob(ib), jpjwdt(ib)
1603	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,1))
1604	itest=itest+1
1605	ENDIF
1606	ENDIF
1607	IF (ztestmask(2)==1) THEN
1608	IF (icornw(ib,2)==0) THEN
1609	IF(lwp) WRITE(numout,*)
1610	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(ib)
1611	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1612	IF(lwp) WRITE(numout,*)
1613	nstop = nstop + 1
1614	ELSE
1615	! This is a corner
1616	IF(lwp) WRITE(numout,*) 'Found a North-West corner at (i,j): ', jpiwob(ib), jpjwft(ib)
1617	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,2))
1618	itest=itest+1
1619	ENDIF
1620	ENDIF
1621	END DO
1622	!
1623	! East segments
1624	DO ib = 1, nbdysege
1625	! get mask at boundary extremities:
1626	ztestmask(1:2)=0.
1627	DO ji = 1, jpi
1628	DO jj = 1, jpj
1629	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1630	& ((jj + njmpp - 1) == jpjedt(ib))) ztestmask(1)=tmask(ji,jj,1)
1631	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1632	& ((jj + njmpp - 1) == jpjeft(ib))) ztestmask(2)=tmask(ji,jj,1)
1633	END DO
1634	END DO
1635	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1636
1637	IF (ztestmask(1)==1) THEN
1638	IF (icorne(ib,1)==0) THEN
1639	IF(lwp) WRITE(numout,*)
1640	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1641	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1642	IF(lwp) WRITE(numout,*)
1643	nstop = nstop + 1
1644	ELSE
1645	! This is a corner
1646	IF(lwp) WRITE(numout,*) 'Found a South-East corner at (i,j): ', jpieob(ib)+1, jpjedt(ib)
1647	CALL bdy_ctl_corn(npckge(ib), icorne(ib,1))
1648	itest=itest+1
1649	ENDIF
1650	ENDIF
1651	IF (ztestmask(2)==1) THEN
1652	IF (icorne(ib,2)==0) THEN
1653	IF(lwp) WRITE(numout,*)
1654	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1655	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1656	IF(lwp) WRITE(numout,*)
1657	nstop = nstop + 1
1658	ELSE
1659	! This is a corner
1660	IF(lwp) WRITE(numout,*) 'Found a North-East corner at (i,j): ', jpieob(ib)+1, jpjeft(ib)
1661	CALL bdy_ctl_corn(npckge(ib), icorne(ib,2))
1662	itest=itest+1
1663	ENDIF
1664	ENDIF
1665	END DO
1666	!
1667	! South segments
1668	DO ib = 1, nbdysegs
1669	! get mask at boundary extremities:
1670	ztestmask(1:2)=0.
1671	DO ji = 1, jpi
1672	DO jj = 1, jpj
1673	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1674	& ((ji + nimpp - 1) == jpisdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1675	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1676	& ((ji + nimpp - 1) == jpisft(ib))) ztestmask(2)=tmask(ji,jj,1)
1677	END DO
1678	END DO
1679	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1680
1681	IF ((ztestmask(1)==1).AND.(icorns(ib,1)==0)) THEN
1682	IF(lwp) WRITE(numout,*)
1683	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1684	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1685	IF(lwp) WRITE(numout,*)
1686	nstop = nstop + 1
1687	ENDIF
1688	IF ((ztestmask(2)==1).AND.(icorns(ib,2)==0)) THEN
1689	IF(lwp) WRITE(numout,*)
1690	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1691	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1692	IF(lwp) WRITE(numout,*)
1693	nstop = nstop + 1
1694	ENDIF
1695	END DO
1696	!
1697	! North segments
1698	DO ib = 1, nbdysegn
1699	! get mask at boundary extremities:
1700	ztestmask(1:2)=0.
1701	DO ji = 1, jpi
1702	DO jj = 1, jpj
1703	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1704	& ((ji + nimpp - 1) == jpindt(ib))) ztestmask(1)=tmask(ji,jj,1)
1705	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1706	& ((ji + nimpp - 1) == jpinft(ib))) ztestmask(2)=tmask(ji,jj,1)
1707	END DO
1708	END DO
1709	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1710
1711	IF ((ztestmask(1)==1).AND.(icornn(ib,1)==0)) THEN
1712	IF(lwp) WRITE(numout,*)
1713	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1714	IF(lwp) WRITE(numout,*) ' ========== does not start on land'
1715	IF(lwp) WRITE(numout,*)
1716	nstop = nstop + 1
1717	ENDIF
1718	IF ((ztestmask(2)==1).AND.(icornn(ib,2)==0)) THEN
1719	IF(lwp) WRITE(numout,*)
1720	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1721	IF(lwp) WRITE(numout,*) ' ========== does not end on land'
1722	IF(lwp) WRITE(numout,*)
1723	nstop = nstop + 1
1724	ENDIF
1725	END DO
1726	!
1727	IF ((itest==0).AND.(lwp)) WRITE(numout,*) 'NO open boundary corner found'
1728	!
1729	IF(lwp. AND. lflush) CALL flush(numout)
1730	!
1731	! Other tests TBD:
1732	! segments completly on land
1733	! optimized open boundary array length according to landmask
1734	! Nudging layers that overlap with interior domain
1735	!
1736	END SUBROUTINE bdy_ctl_seg
1737
1738	SUBROUTINE bdy_ctl_corn( ib1, ib2 )
1739	!!----------------------------------------------------------------------
1740	!! * ROUTINE bdy_ctl_corn *
1741	!!
1742	!! ** Purpose : Check numerical schemes consistency between
1743	!! segments having a common corner
1744	!!
1745	!! ** Method :
1746	!!----------------------------------------------------------------------
1747	INTEGER, INTENT(in) :: ib1, ib2
1748	INTEGER :: itest
1749	!!----------------------------------------------------------------------
1750	itest = 0
1751
1752	IF (cn_dyn2d(ib1)/=cn_dyn2d(ib2)) itest = itest + 1
1753	IF (cn_dyn3d(ib1)/=cn_dyn3d(ib2)) itest = itest + 1
1754	IF (cn_tra(ib1)/=cn_tra(ib2)) itest = itest + 1
1755	!
1756	IF (nn_dyn2d_dta(ib1)/=nn_dyn2d_dta(ib2)) itest = itest + 1
1757	IF (nn_dyn3d_dta(ib1)/=nn_dyn3d_dta(ib2)) itest = itest + 1
1758	IF (nn_tra_dta(ib1)/=nn_tra_dta(ib2)) itest = itest + 1
1759	!
1760	IF (nn_rimwidth(ib1)/=nn_rimwidth(ib2)) itest = itest + 1
1761	!
1762	IF ( itest>0 ) THEN
1763	IF(lwp) WRITE(numout,*) ' E R R O R : Segments ', ib1, 'and ', ib2
1764	IF(lwp) WRITE(numout,*) ' ========== have different open bdy schemes'
1765	IF(lwp) WRITE(numout,*)
1766	IF(lflush) CALL flush(numout)
1767	nstop = nstop + 1
1768	ENDIF
1769	!
1770	END SUBROUTINE bdy_ctl_corn
1771
1772	#else
1773	!!---------------------------------------------------------------------------------
1774	!! Dummy module NO open boundaries
1775	!!---------------------------------------------------------------------------------
1776	CONTAINS
1777	SUBROUTINE bdy_init ! Dummy routine
1778	END SUBROUTINE bdy_init
1779	#endif
1780
1781	!!=================================================================================
1782	END MODULE bdyini

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source: branches/UKMO/dev_r5518_GO6_package_text_diagnostics/NEMOGCM/NEMO/OPA_SRC/BDY/bdyini.F90 @ 10774

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