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bdyini.F90 @ 8738

Last change on this file since 8738 was 8738, checked in by dancopsey, 6 years ago
Merged in main ICEMODEL branch (branches/2017/dev_r8183_ICEMODEL) up to revision 8588
File size: 82.8 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) optimization of BDY communications
15	!! 3.7 ! 2016 (T. Lovato) Remove bdy macro, call here init for dta and tides
16	!!----------------------------------------------------------------------
17	!! bdy_init : Initialization of unstructured open boundaries
18	!!----------------------------------------------------------------------
19	USE oce ! ocean dynamics and tracers variables
20	USE dom_oce ! ocean space and time domain
21	USE bdy_oce ! unstructured open boundary conditions
22	USE bdydta ! open boundary cond. setting (bdy_dta_init routine)
23	USE bdytides ! open boundary cond. setting (bdytide_init routine)
24	USE sbctide ! Tidal forcing or not
25	USE phycst , ONLY: rday
26	!
27	USE in_out_manager ! I/O units
28	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
29	USE lib_mpp ! for mpp_sum
30	USE iom ! I/O
31	USE wrk_nemo ! Memory Allocation
32	USE timing ! Timing
33
34	IMPLICIT NONE
35	PRIVATE
36
37	PUBLIC bdy_init ! routine called in nemo_init
38
39	INTEGER, PARAMETER :: jp_nseg = 100 !
40	INTEGER, PARAMETER :: nrimmax = 20 ! maximum rimwidth in structured
41	! open boundary data files
42	! Straight open boundary segment parameters:
43	INTEGER :: nbdysege, nbdysegw, nbdysegn, nbdysegs
44	INTEGER, DIMENSION(jp_nseg) :: jpieob, jpjedt, jpjeft, npckge !
45	INTEGER, DIMENSION(jp_nseg) :: jpiwob, jpjwdt, jpjwft, npckgw !
46	INTEGER, DIMENSION(jp_nseg) :: jpjnob, jpindt, jpinft, npckgn !
47	INTEGER, DIMENSION(jp_nseg) :: jpjsob, jpisdt, jpisft, npckgs !
48	!!----------------------------------------------------------------------
49	!! NEMO/OPA 3.7 , NEMO Consortium (2015)
50	!! $Id$
51	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
52	!!----------------------------------------------------------------------
53	CONTAINS
54
55	SUBROUTINE bdy_init
56	!!----------------------------------------------------------------------
57	!! * ROUTINE bdy_init *
58	!!
59	!! ** Purpose : Initialization of the dynamics and tracer fields with
60	!! unstructured open boundaries.
61	!!
62	!! ** Method : Read initialization arrays (mask, indices) to identify
63	!! an unstructured open boundary
64	!!
65	!! ** Input : bdy_init.nc, input file for unstructured open boundaries
66	!!----------------------------------------------------------------------
67	NAMELIST/nambdy/ ln_bdy, nb_bdy, ln_coords_file, cn_coords_file, &
68	& ln_mask_file, cn_mask_file, cn_dyn2d, nn_dyn2d_dta, &
69	& cn_dyn3d, nn_dyn3d_dta, cn_tra, nn_tra_dta, &
70	& ln_tra_dmp, ln_dyn3d_dmp, rn_time_dmp, rn_time_dmp_out, &
71	& cn_ice_lim, nn_ice_lim_dta, &
72	& rn_ice_tem, rn_ice_sal, rn_ice_age, &
73	& ln_vol, nn_volctl, nn_rimwidth, nb_jpk_bdy
74	!
75	INTEGER :: ios ! Local integer output status for namelist read
76	!!----------------------------------------------------------------------
77	!
78	IF( nn_timing == 1 ) CALL timing_start('bdy_init')
79
80	! ------------------------
81	! Read namelist parameters
82	! ------------------------
83	REWIND( numnam_ref ) ! Namelist nambdy in reference namelist :Unstructured open boundaries
84	READ ( numnam_ref, nambdy, IOSTAT = ios, ERR = 901)
85	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in reference namelist', lwp )
86	!
87	REWIND( numnam_cfg ) ! Namelist nambdy in configuration namelist :Unstructured open boundaries
88	READ ( numnam_cfg, nambdy, IOSTAT = ios, ERR = 902 )
89	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in configuration namelist', lwp )
90	IF(lwm) WRITE ( numond, nambdy )
91
92	! -----------------------------------------
93	! unstructured open boundaries use control
94	! -----------------------------------------
95	IF ( ln_bdy ) THEN
96	IF(lwp) WRITE(numout,*)
97	IF(lwp) WRITE(numout,*) 'bdy_init : initialization of open boundaries'
98	IF(lwp) WRITE(numout,*) '~~~~~~~~'
99	!
100	! Open boundaries definition (arrays and masks)
101	CALL bdy_segs
102	!
103	! Open boundaries initialisation of external data arrays
104	CALL bdy_dta_init
105	!
106	! Open boundaries initialisation of tidal harmonic forcing
107	IF( ln_tide ) CALL bdytide_init
108	!
109	ELSE
110	IF(lwp) WRITE(numout,*)
111	IF(lwp) WRITE(numout,*) 'bdy_init : open boundaries not used (ln_bdy = F)'
112	IF(lwp) WRITE(numout,*) '~~~~~~~~'
113	!
114	ENDIF
115	!
116	IF( nn_timing == 1 ) CALL timing_stop('bdy_init')
117	!
118	END SUBROUTINE bdy_init
119
120	SUBROUTINE bdy_segs
121	!!----------------------------------------------------------------------
122	!! * ROUTINE bdy_init *
123	!!
124	!! ** Purpose : Definition of unstructured open boundaries.
125	!!
126	!! ** Method : Read initialization arrays (mask, indices) to identify
127	!! an unstructured open boundary
128	!!
129	!! ** Input : bdy_init.nc, input file for unstructured open boundaries
130	!!----------------------------------------------------------------------
131
132	! local variables
133	!-------------------
134	INTEGER :: ib_bdy, ii, ij, ik, igrd, ib, ir, iseg ! dummy loop indices
135	INTEGER :: icount, icountr, ibr_max, ilen1, ibm1 ! local integers
136	INTEGER :: iwe, ies, iso, ino, inum, id_dummy ! - -
137	INTEGER :: igrd_start, igrd_end, jpbdta ! - -
138	INTEGER :: jpbdtau, jpbdtas ! - -
139	INTEGER :: ib_bdy1, ib_bdy2, ib1, ib2 ! - -
140	INTEGER :: i_offset, j_offset ! - -
141	INTEGER , POINTER :: nbi, nbj, nbr ! short cuts
142	REAL(wp), POINTER :: flagu, flagv ! - -
143	REAL(wp), POINTER, DIMENSION(:,:) :: pmask ! pointer to 2D mask fields
144	REAL(wp) :: zefl, zwfl, znfl, zsfl ! local scalars
145	INTEGER, DIMENSION (2) :: kdimsz
146	INTEGER, DIMENSION(jpbgrd,jp_bdy) :: nblendta ! Length of index arrays
147	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbidta, nbjdta ! Index arrays: i and j indices of bdy dta
148	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbrdta ! Discrete distance from rim points
149	CHARACTER(LEN=1),DIMENSION(jpbgrd) :: cgrid
150	INTEGER :: com_east, com_west, com_south, com_north ! Flags for boundaries sending
151	INTEGER :: com_east_b, com_west_b, com_south_b, com_north_b ! Flags for boundaries receiving
152	INTEGER :: iw_b(4), ie_b(4), is_b(4), in_b(4) ! Arrays for neighbours coordinates
153	REAL(wp), POINTER, DIMENSION(:,:) :: zfmask ! temporary fmask array excluding coastal boundary condition (shlat)
154	!!
155	CHARACTER(LEN=1) :: ctypebdy ! - -
156	INTEGER :: nbdyind, nbdybeg, nbdyend
157	!!
158	NAMELIST/nambdy_index/ ctypebdy, nbdyind, nbdybeg, nbdyend
159	INTEGER :: ios ! Local integer output status for namelist read
160	!!----------------------------------------------------------------------
161	!
162	IF( nn_timing == 1 ) CALL timing_start('bdy_segs')
163	!
164	cgrid = (/'t','u','v'/)
165
166	! -----------------------------------------
167	! Check and write out namelist parameters
168	! -----------------------------------------
169	IF( jperio /= 0 ) CALL ctl_stop( 'bdy_segs: Cyclic or symmetric,', &
170	& ' and general open boundary condition are not compatible' )
171
172	IF( nb_bdy == 0 ) THEN
173	IF(lwp) WRITE(numout,*) 'nb_bdy = 0, NO OPEN BOUNDARIES APPLIED.'
174	ELSE
175	IF(lwp) WRITE(numout,*) 'Number of open boundary sets : ', nb_bdy
176	ENDIF
177
178	DO ib_bdy = 1,nb_bdy
179	IF(lwp) WRITE(numout,*) ' '
180	IF(lwp) WRITE(numout,*) '------ Open boundary data set ',ib_bdy,'------'
181
182	IF( ln_coords_file(ib_bdy) ) THEN
183	IF(lwp) WRITE(numout,*) 'Boundary definition read from file '//TRIM(cn_coords_file(ib_bdy))
184	ELSE
185	IF(lwp) WRITE(numout,*) 'Boundary defined in namelist.'
186	ENDIF
187	IF(lwp) WRITE(numout,*)
188
189	IF(lwp) WRITE(numout,*) 'Boundary conditions for barotropic solution: '
190	SELECT CASE( cn_dyn2d(ib_bdy) )
191	CASE( 'none' )
192	IF(lwp) WRITE(numout,*) ' no open boundary condition'
193	dta_bdy(ib_bdy)%ll_ssh = .false.
194	dta_bdy(ib_bdy)%ll_u2d = .false.
195	dta_bdy(ib_bdy)%ll_v2d = .false.
196	CASE( 'frs' )
197	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
198	dta_bdy(ib_bdy)%ll_ssh = .false.
199	dta_bdy(ib_bdy)%ll_u2d = .true.
200	dta_bdy(ib_bdy)%ll_v2d = .true.
201	CASE( 'flather' )
202	IF(lwp) WRITE(numout,*) ' Flather radiation condition'
203	dta_bdy(ib_bdy)%ll_ssh = .true.
204	dta_bdy(ib_bdy)%ll_u2d = .true.
205	dta_bdy(ib_bdy)%ll_v2d = .true.
206	CASE( 'orlanski' )
207	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
208	dta_bdy(ib_bdy)%ll_ssh = .false.
209	dta_bdy(ib_bdy)%ll_u2d = .true.
210	dta_bdy(ib_bdy)%ll_v2d = .true.
211	CASE( 'orlanski_npo' )
212	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
213	dta_bdy(ib_bdy)%ll_ssh = .false.
214	dta_bdy(ib_bdy)%ll_u2d = .true.
215	dta_bdy(ib_bdy)%ll_v2d = .true.
216	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn2d' )
217	END SELECT
218	IF( cn_dyn2d(ib_bdy) /= 'none' ) THEN
219	SELECT CASE( nn_dyn2d_dta(ib_bdy) ) !
220	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
221	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
222	CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' tidal harmonic forcing taken from file'
223	CASE( 3 ) ; IF(lwp) WRITE(numout,*) ' boundary data AND tidal harmonic forcing taken from files'
224	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn2d_dta must be between 0 and 3' )
225	END SELECT
226	IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(.NOT.ln_tide)) THEN
227	CALL ctl_stop( 'You must activate with ln_tide to add tidal forcing at open boundaries' )
228	ENDIF
229	ENDIF
230	IF(lwp) WRITE(numout,*)
231
232	IF(lwp) WRITE(numout,*) 'Boundary conditions for baroclinic velocities: '
233	SELECT CASE( cn_dyn3d(ib_bdy) )
234	CASE('none')
235	IF(lwp) WRITE(numout,*) ' no open boundary condition'
236	dta_bdy(ib_bdy)%ll_u3d = .false.
237	dta_bdy(ib_bdy)%ll_v3d = .false.
238	CASE('frs')
239	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
240	dta_bdy(ib_bdy)%ll_u3d = .true.
241	dta_bdy(ib_bdy)%ll_v3d = .true.
242	CASE('specified')
243	IF(lwp) WRITE(numout,*) ' Specified value'
244	dta_bdy(ib_bdy)%ll_u3d = .true.
245	dta_bdy(ib_bdy)%ll_v3d = .true.
246	CASE('neumann')
247	IF(lwp) WRITE(numout,*) ' Neumann conditions'
248	dta_bdy(ib_bdy)%ll_u3d = .false.
249	dta_bdy(ib_bdy)%ll_v3d = .false.
250	CASE('zerograd')
251	IF(lwp) WRITE(numout,*) ' Zero gradient for baroclinic velocities'
252	dta_bdy(ib_bdy)%ll_u3d = .false.
253	dta_bdy(ib_bdy)%ll_v3d = .false.
254	CASE('zero')
255	IF(lwp) WRITE(numout,*) ' Zero baroclinic velocities (runoff case)'
256	dta_bdy(ib_bdy)%ll_u3d = .false.
257	dta_bdy(ib_bdy)%ll_v3d = .false.
258	CASE('orlanski')
259	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
260	dta_bdy(ib_bdy)%ll_u3d = .true.
261	dta_bdy(ib_bdy)%ll_v3d = .true.
262	CASE('orlanski_npo')
263	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
264	dta_bdy(ib_bdy)%ll_u3d = .true.
265	dta_bdy(ib_bdy)%ll_v3d = .true.
266	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn3d' )
267	END SELECT
268	IF( cn_dyn3d(ib_bdy) /= 'none' ) THEN
269	SELECT CASE( nn_dyn3d_dta(ib_bdy) ) !
270	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
271	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
272	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn3d_dta must be 0 or 1' )
273	END SELECT
274	ENDIF
275
276	IF ( ln_dyn3d_dmp(ib_bdy) ) THEN
277	IF ( cn_dyn3d(ib_bdy) == 'none' ) THEN
278	IF(lwp) WRITE(numout,*) 'No open boundary condition for baroclinic velocities: ln_dyn3d_dmp is set to .false.'
279	ln_dyn3d_dmp(ib_bdy)=.false.
280	ELSEIF ( cn_dyn3d(ib_bdy) == 'frs' ) THEN
281	CALL ctl_stop( 'Use FRS OR relaxation' )
282	ELSE
283	IF(lwp) WRITE(numout,*) ' + baroclinic velocities relaxation zone'
284	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
285	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
286	dta_bdy(ib_bdy)%ll_u3d = .true.
287	dta_bdy(ib_bdy)%ll_v3d = .true.
288	ENDIF
289	ELSE
290	IF(lwp) WRITE(numout,*) ' NO relaxation on baroclinic velocities'
291	ENDIF
292	IF(lwp) WRITE(numout,*)
293
294	IF(lwp) WRITE(numout,*) 'Boundary conditions for temperature and salinity: '
295	SELECT CASE( cn_tra(ib_bdy) )
296	CASE('none')
297	IF(lwp) WRITE(numout,*) ' no open boundary condition'
298	dta_bdy(ib_bdy)%ll_tem = .false.
299	dta_bdy(ib_bdy)%ll_sal = .false.
300	CASE('frs')
301	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
302	dta_bdy(ib_bdy)%ll_tem = .true.
303	dta_bdy(ib_bdy)%ll_sal = .true.
304	CASE('specified')
305	IF(lwp) WRITE(numout,*) ' Specified value'
306	dta_bdy(ib_bdy)%ll_tem = .true.
307	dta_bdy(ib_bdy)%ll_sal = .true.
308	CASE('neumann')
309	IF(lwp) WRITE(numout,*) ' Neumann conditions'
310	dta_bdy(ib_bdy)%ll_tem = .false.
311	dta_bdy(ib_bdy)%ll_sal = .false.
312	CASE('runoff')
313	IF(lwp) WRITE(numout,*) ' Runoff conditions : Neumann for T and specified to 0.1 for salinity'
314	dta_bdy(ib_bdy)%ll_tem = .false.
315	dta_bdy(ib_bdy)%ll_sal = .false.
316	CASE('orlanski')
317	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
318	dta_bdy(ib_bdy)%ll_tem = .true.
319	dta_bdy(ib_bdy)%ll_sal = .true.
320	CASE('orlanski_npo')
321	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
322	dta_bdy(ib_bdy)%ll_tem = .true.
323	dta_bdy(ib_bdy)%ll_sal = .true.
324	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_tra' )
325	END SELECT
326	IF( cn_tra(ib_bdy) /= 'none' ) THEN
327	SELECT CASE( nn_tra_dta(ib_bdy) ) !
328	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
329	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
330	CASE DEFAULT ; CALL ctl_stop( 'nn_tra_dta must be 0 or 1' )
331	END SELECT
332	ENDIF
333
334	IF ( ln_tra_dmp(ib_bdy) ) THEN
335	IF ( cn_tra(ib_bdy) == 'none' ) THEN
336	IF(lwp) WRITE(numout,*) 'No open boundary condition for tracers: ln_tra_dmp is set to .false.'
337	ln_tra_dmp(ib_bdy)=.false.
338	ELSEIF ( cn_tra(ib_bdy) == 'frs' ) THEN
339	CALL ctl_stop( 'Use FRS OR relaxation' )
340	ELSE
341	IF(lwp) WRITE(numout,*) ' + T/S relaxation zone'
342	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
343	IF(lwp) WRITE(numout,*) ' Outflow damping time scale: ',rn_time_dmp_out(ib_bdy),' days'
344	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
345	dta_bdy(ib_bdy)%ll_tem = .true.
346	dta_bdy(ib_bdy)%ll_sal = .true.
347	ENDIF
348	ELSE
349	IF(lwp) WRITE(numout,*) ' NO T/S relaxation'
350	ENDIF
351	IF(lwp) WRITE(numout,*)
352
353	#if defined key_lim3
354	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
355	SELECT CASE( cn_ice_lim(ib_bdy) )
356	CASE('none')
357	IF(lwp) WRITE(numout,*) ' no open boundary condition'
358	dta_bdy(ib_bdy)%ll_a_i = .false.
359	dta_bdy(ib_bdy)%ll_h_i = .false.
360	dta_bdy(ib_bdy)%ll_h_s = .false.
361	CASE('frs')
362	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
363	dta_bdy(ib_bdy)%ll_a_i = .true.
364	dta_bdy(ib_bdy)%ll_h_i = .true.
365	dta_bdy(ib_bdy)%ll_h_s = .true.
366	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
367	END SELECT
368	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
369	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
370	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
371	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
372	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
373	END SELECT
374	ENDIF
375	IF(lwp) WRITE(numout,*)
376	IF(lwp) WRITE(numout,*) ' tem of bdy sea-ice = ', rn_ice_tem(ib_bdy)
377	IF(lwp) WRITE(numout,*) ' sal of bdy sea-ice = ', rn_ice_sal(ib_bdy)
378	IF(lwp) WRITE(numout,*) ' age of bdy sea-ice = ', rn_ice_age(ib_bdy)
379	#endif
380
381	IF(lwp) WRITE(numout,*) ' Width of relaxation zone = ', nn_rimwidth(ib_bdy)
382	IF(lwp) WRITE(numout,*)
383
384	ENDDO
385
386	IF (nb_bdy .gt. 0) THEN
387	IF( ln_vol ) THEN ! check volume conservation (nn_volctl value)
388	IF(lwp) WRITE(numout,*) 'Volume correction applied at open boundaries'
389	IF(lwp) WRITE(numout,*)
390	SELECT CASE ( nn_volctl )
391	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' The total volume will be constant'
392	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' The total volume will vary according to the surface E-P flux'
393	CASE DEFAULT ; CALL ctl_stop( 'nn_volctl must be 0 or 1' )
394	END SELECT
395	IF(lwp) WRITE(numout,*)
396	ELSE
397	IF(lwp) WRITE(numout,*) 'No volume correction applied at open boundaries'
398	IF(lwp) WRITE(numout,*)
399	ENDIF
400	IF( nb_jpk_bdy > 0 ) THEN
401	IF(lwp) WRITE(numout,) ' open boundary will be interpolate in the vertical onto the native grid *'
402	ELSE
403	IF(lwp) WRITE(numout,) ' open boundary will be read straight onto the native grid without vertical interpolation *'
404	ENDIF
405	ENDIF
406
407	! -------------------------------------------------
408	! Initialise indices arrays for open boundaries
409	! -------------------------------------------------
410
411	! Work out global dimensions of boundary data
412	! ---------------------------------------------
413	REWIND( numnam_cfg )
414
415	nblendta(:,:) = 0
416	nbdysege = 0
417	nbdysegw = 0
418	nbdysegn = 0
419	nbdysegs = 0
420	icount = 0 ! count user defined segments
421	! Dimensions below are used to allocate arrays to read external data
422	jpbdtas = 1 ! Maximum size of boundary data (structured case)
423	jpbdtau = 1 ! Maximum size of boundary data (unstructured case)
424
425	DO ib_bdy = 1, nb_bdy
426
427	IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Work out size of global arrays from namelist parameters
428
429	icount = icount + 1
430	! No REWIND here because may need to read more than one nambdy_index namelist.
431	! Read only namelist_cfg to avoid unseccessfull overwrite
432	!! REWIND( numnam_ref ) ! Namelist nambdy_index in reference namelist : Open boundaries indexes
433	!! READ ( numnam_ref, namrun, IOSTAT = ios, ERR = 903)
434	!!903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in reference namelist', lwp )
435
436	!! REWIND( numnam_cfg ) ! Namelist nambdy_index in configuration namelist : Open boundaries indexes
437	READ ( numnam_cfg, nambdy_index, IOSTAT = ios, ERR = 904 )
438	904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in configuration namelist', lwp )
439	IF(lwm) WRITE ( numond, nambdy_index )
440
441	SELECT CASE ( TRIM(ctypebdy) )
442	CASE( 'N' )
443	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
444	nbdyind = jpjglo - 2 ! set boundary to whole side of model domain.
445	nbdybeg = 2
446	nbdyend = jpiglo - 1
447	ENDIF
448	nbdysegn = nbdysegn + 1
449	npckgn(nbdysegn) = ib_bdy ! Save bdy package number
450	jpjnob(nbdysegn) = nbdyind
451	jpindt(nbdysegn) = nbdybeg
452	jpinft(nbdysegn) = nbdyend
453	!
454	CASE( 'S' )
455	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
456	nbdyind = 2 ! set boundary to whole side of model domain.
457	nbdybeg = 2
458	nbdyend = jpiglo - 1
459	ENDIF
460	nbdysegs = nbdysegs + 1
461	npckgs(nbdysegs) = ib_bdy ! Save bdy package number
462	jpjsob(nbdysegs) = nbdyind
463	jpisdt(nbdysegs) = nbdybeg
464	jpisft(nbdysegs) = nbdyend
465	!
466	CASE( 'E' )
467	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
468	nbdyind = jpiglo - 2 ! set boundary to whole side of model domain.
469	nbdybeg = 2
470	nbdyend = jpjglo - 1
471	ENDIF
472	nbdysege = nbdysege + 1
473	npckge(nbdysege) = ib_bdy ! Save bdy package number
474	jpieob(nbdysege) = nbdyind
475	jpjedt(nbdysege) = nbdybeg
476	jpjeft(nbdysege) = nbdyend
477	!
478	CASE( 'W' )
479	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
480	nbdyind = 2 ! set boundary to whole side of model domain.
481	nbdybeg = 2
482	nbdyend = jpjglo - 1
483	ENDIF
484	nbdysegw = nbdysegw + 1
485	npckgw(nbdysegw) = ib_bdy ! Save bdy package number
486	jpiwob(nbdysegw) = nbdyind
487	jpjwdt(nbdysegw) = nbdybeg
488	jpjwft(nbdysegw) = nbdyend
489	!
490	CASE DEFAULT ; CALL ctl_stop( 'ctypebdy must be N, S, E or W' )
491	END SELECT
492
493	! For simplicity we assume that in case of straight bdy, arrays have the same length
494	! (even if it is true that last tangential velocity points
495	! are useless). This simplifies a little bit boundary data format (and agrees with format
496	! used so far in obc package)
497
498	nblendta(1:jpbgrd,ib_bdy) = (nbdyend - nbdybeg + 1) * nn_rimwidth(ib_bdy)
499	jpbdtas = MAX(jpbdtas, (nbdyend - nbdybeg + 1))
500	IF (lwp.and.(nn_rimwidth(ib_bdy)>nrimmax)) &
501	& CALL ctl_stop( 'rimwidth must be lower than nrimmax' )
502
503	ELSE ! Read size of arrays in boundary coordinates file.
504	CALL iom_open( cn_coords_file(ib_bdy), inum )
505	DO igrd = 1, jpbgrd
506	id_dummy = iom_varid( inum, 'nbi'//cgrid(igrd), kdimsz=kdimsz )
507	!clem nblendta(igrd,ib_bdy) = kdimsz(1)
508	!clem jpbdtau = MAX(jpbdtau, kdimsz(1))
509	nblendta(igrd,ib_bdy) = MAXVAL(kdimsz)
510	jpbdtau = MAX(jpbdtau, MAXVAL(kdimsz))
511	END DO
512	CALL iom_close( inum )
513	!
514	ENDIF
515	!
516	END DO ! ib_bdy
517
518	IF (nb_bdy>0) THEN
519	jpbdta = MAXVAL(nblendta(1:jpbgrd,1:nb_bdy))
520
521	! Allocate arrays
522	!---------------
523	ALLOCATE( nbidta(jpbdta, jpbgrd, nb_bdy), nbjdta(jpbdta, jpbgrd, nb_bdy), &
524	& nbrdta(jpbdta, jpbgrd, nb_bdy) )
525
526	IF( nb_jpk_bdy>0 ) THEN
527	ALLOCATE( dta_global(jpbdtau, 1, nb_jpk_bdy) )
528	ALLOCATE( dta_global_z(jpbdtau, 1, nb_jpk_bdy) )
529	ALLOCATE( dta_global_dz(jpbdtau, 1, nb_jpk_bdy) )
530	ELSE
531	ALLOCATE( dta_global(jpbdtau, 1, jpk) )
532	ALLOCATE( dta_global_z(jpbdtau, 1, jpk) ) ! needed ?? TODO
533	ALLOCATE( dta_global_dz(jpbdtau, 1, jpk) )! needed ?? TODO
534	ENDIF
535
536	IF ( icount>0 ) THEN
537	IF( nb_jpk_bdy>0 ) THEN
538	ALLOCATE( dta_global2(jpbdtas, nrimmax, nb_jpk_bdy) )
539	ALLOCATE( dta_global2_z(jpbdtas, nrimmax, nb_jpk_bdy) )
540	ALLOCATE( dta_global2_dz(jpbdtas, nrimmax, nb_jpk_bdy) )
541	ELSE
542	ALLOCATE( dta_global2(jpbdtas, nrimmax, jpk) )
543	ALLOCATE( dta_global2_z(jpbdtas, nrimmax, jpk) ) ! needed ?? TODO
544	ALLOCATE( dta_global2_dz(jpbdtas, nrimmax, jpk) )! needed ?? TODO
545	ENDIF
546	ENDIF
547	!
548	ENDIF
549
550	! Now look for crossings in user (namelist) defined open boundary segments:
551	!--------------------------------------------------------------------------
552	IF( icount>0 ) CALL bdy_ctl_seg
553
554	! Calculate global boundary index arrays or read in from file
555	!------------------------------------------------------------
556	! 1. Read global index arrays from boundary coordinates file.
557	DO ib_bdy = 1, nb_bdy
558	!
559	IF( ln_coords_file(ib_bdy) ) THEN
560	!
561	CALL iom_open( cn_coords_file(ib_bdy), inum )
562	DO igrd = 1, jpbgrd
563	CALL iom_get( inum, jpdom_unknown, 'nbi'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
564	DO ii = 1,nblendta(igrd,ib_bdy)
565	nbidta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
566	END DO
567	CALL iom_get( inum, jpdom_unknown, 'nbj'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
568	DO ii = 1,nblendta(igrd,ib_bdy)
569	nbjdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
570	END DO
571	CALL iom_get( inum, jpdom_unknown, 'nbr'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
572	DO ii = 1,nblendta(igrd,ib_bdy)
573	nbrdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
574	END DO
575	!
576	ibr_max = MAXVAL( nbrdta(:,igrd,ib_bdy) )
577	IF(lwp) WRITE(numout,*)
578	IF(lwp) WRITE(numout,*) ' Maximum rimwidth in file is ', ibr_max
579	IF(lwp) WRITE(numout,*) ' nn_rimwidth from namelist is ', nn_rimwidth(ib_bdy)
580	IF (ibr_max < nn_rimwidth(ib_bdy)) &
581	CALL ctl_stop( 'nn_rimwidth is larger than maximum rimwidth in file',cn_coords_file(ib_bdy) )
582	END DO
583	CALL iom_close( inum )
584	!
585	ENDIF
586	!
587	END DO
588
589	! 2. Now fill indices corresponding to straight open boundary arrays:
590	! East
591	!-----
592	DO iseg = 1, nbdysege
593	ib_bdy = npckge(iseg)
594	!
595	! ------------ T points -------------
596	igrd=1
597	icount=0
598	DO ir = 1, nn_rimwidth(ib_bdy)
599	DO ij = jpjedt(iseg), jpjeft(iseg)
600	icount = icount + 1
601	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
602	nbjdta(icount, igrd, ib_bdy) = ij
603	nbrdta(icount, igrd, ib_bdy) = ir
604	ENDDO
605	ENDDO
606	!
607	! ------------ U points -------------
608	igrd=2
609	icount=0
610	DO ir = 1, nn_rimwidth(ib_bdy)
611	DO ij = jpjedt(iseg), jpjeft(iseg)
612	icount = icount + 1
613	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 1 - ir
614	nbjdta(icount, igrd, ib_bdy) = ij
615	nbrdta(icount, igrd, ib_bdy) = ir
616	ENDDO
617	ENDDO
618	!
619	! ------------ V points -------------
620	igrd=3
621	icount=0
622	DO ir = 1, nn_rimwidth(ib_bdy)
623	! DO ij = jpjedt(iseg), jpjeft(iseg) - 1
624	DO ij = jpjedt(iseg), jpjeft(iseg)
625	icount = icount + 1
626	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
627	nbjdta(icount, igrd, ib_bdy) = ij
628	nbrdta(icount, igrd, ib_bdy) = ir
629	ENDDO
630	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
631	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
632	ENDDO
633	ENDDO
634	!
635	! West
636	!-----
637	DO iseg = 1, nbdysegw
638	ib_bdy = npckgw(iseg)
639	!
640	! ------------ T points -------------
641	igrd=1
642	icount=0
643	DO ir = 1, nn_rimwidth(ib_bdy)
644	DO ij = jpjwdt(iseg), jpjwft(iseg)
645	icount = icount + 1
646	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
647	nbjdta(icount, igrd, ib_bdy) = ij
648	nbrdta(icount, igrd, ib_bdy) = ir
649	ENDDO
650	ENDDO
651	!
652	! ------------ U points -------------
653	igrd=2
654	icount=0
655	DO ir = 1, nn_rimwidth(ib_bdy)
656	DO ij = jpjwdt(iseg), jpjwft(iseg)
657	icount = icount + 1
658	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
659	nbjdta(icount, igrd, ib_bdy) = ij
660	nbrdta(icount, igrd, ib_bdy) = ir
661	ENDDO
662	ENDDO
663	!
664	! ------------ V points -------------
665	igrd=3
666	icount=0
667	DO ir = 1, nn_rimwidth(ib_bdy)
668	! DO ij = jpjwdt(iseg), jpjwft(iseg) - 1
669	DO ij = jpjwdt(iseg), jpjwft(iseg)
670	icount = icount + 1
671	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
672	nbjdta(icount, igrd, ib_bdy) = ij
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	ENDDO
679	!
680	! North
681	!-----
682	DO iseg = 1, nbdysegn
683	ib_bdy = npckgn(iseg)
684	!
685	! ------------ T points -------------
686	igrd=1
687	icount=0
688	DO ir = 1, nn_rimwidth(ib_bdy)
689	DO ii = jpindt(iseg), jpinft(iseg)
690	icount = icount + 1
691	nbidta(icount, igrd, ib_bdy) = ii
692	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
693	nbrdta(icount, igrd, ib_bdy) = ir
694	ENDDO
695	ENDDO
696	!
697	! ------------ U points -------------
698	igrd=2
699	icount=0
700	DO ir = 1, nn_rimwidth(ib_bdy)
701	! DO ii = jpindt(iseg), jpinft(iseg) - 1
702	DO ii = jpindt(iseg), jpinft(iseg)
703	icount = icount + 1
704	nbidta(icount, igrd, ib_bdy) = ii
705	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
706	nbrdta(icount, igrd, ib_bdy) = ir
707	ENDDO
708	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
709	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
710	ENDDO
711	!
712	! ------------ V points -------------
713	igrd=3
714	icount=0
715	DO ir = 1, nn_rimwidth(ib_bdy)
716	DO ii = jpindt(iseg), jpinft(iseg)
717	icount = icount + 1
718	nbidta(icount, igrd, ib_bdy) = ii
719	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 1 - ir
720	nbrdta(icount, igrd, ib_bdy) = ir
721	ENDDO
722	ENDDO
723	ENDDO
724	!
725	! South
726	!-----
727	DO iseg = 1, nbdysegs
728	ib_bdy = npckgs(iseg)
729	!
730	! ------------ T points -------------
731	igrd=1
732	icount=0
733	DO ir = 1, nn_rimwidth(ib_bdy)
734	DO ii = jpisdt(iseg), jpisft(iseg)
735	icount = icount + 1
736	nbidta(icount, igrd, ib_bdy) = ii
737	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
738	nbrdta(icount, igrd, ib_bdy) = ir
739	ENDDO
740	ENDDO
741	!
742	! ------------ U points -------------
743	igrd=2
744	icount=0
745	DO ir = 1, nn_rimwidth(ib_bdy)
746	! DO ii = jpisdt(iseg), jpisft(iseg) - 1
747	DO ii = jpisdt(iseg), jpisft(iseg)
748	icount = icount + 1
749	nbidta(icount, igrd, ib_bdy) = ii
750	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
751	nbrdta(icount, igrd, ib_bdy) = ir
752	ENDDO
753	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
754	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
755	ENDDO
756	!
757	! ------------ V points -------------
758	igrd=3
759	icount=0
760	DO ir = 1, nn_rimwidth(ib_bdy)
761	DO ii = jpisdt(iseg), jpisft(iseg)
762	icount = icount + 1
763	nbidta(icount, igrd, ib_bdy) = ii
764	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
765	nbrdta(icount, igrd, ib_bdy) = ir
766	ENDDO
767	ENDDO
768	ENDDO
769
770	! Deal with duplicated points
771	!-----------------------------
772	! We assign negative indices to duplicated points (to remove them from bdy points to be updated)
773	! if their distance to the bdy is greater than the other
774	! If their distance are the same, just keep only one to avoid updating a point twice
775	DO igrd = 1, jpbgrd
776	DO ib_bdy1 = 1, nb_bdy
777	DO ib_bdy2 = 1, nb_bdy
778	IF (ib_bdy1/=ib_bdy2) THEN
779	DO ib1 = 1, nblendta(igrd,ib_bdy1)
780	DO ib2 = 1, nblendta(igrd,ib_bdy2)
781	IF ((nbidta(ib1, igrd, ib_bdy1)==nbidta(ib2, igrd, ib_bdy2)).AND. &
782	& (nbjdta(ib1, igrd, ib_bdy1)==nbjdta(ib2, igrd, ib_bdy2))) THEN
783	! IF ((lwp).AND.(igrd==1)) WRITE(numout,*) ' found coincident point ji, jj:', &
784	! & nbidta(ib1, igrd, ib_bdy1), &
785	! & nbjdta(ib2, igrd, ib_bdy2)
786	! keep only points with the lowest distance to boundary:
787	IF (nbrdta(ib1, igrd, ib_bdy1)<nbrdta(ib2, igrd, ib_bdy2)) THEN
788	nbidta(ib2, igrd, ib_bdy2) =-ib_bdy2
789	nbjdta(ib2, igrd, ib_bdy2) =-ib_bdy2
790	ELSEIF (nbrdta(ib1, igrd, ib_bdy1)>nbrdta(ib2, igrd, ib_bdy2)) THEN
791	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
792	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
793	! Arbitrary choice if distances are the same:
794	ELSE
795	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
796	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
797	ENDIF
798	END IF
799	END DO
800	END DO
801	ENDIF
802	END DO
803	END DO
804	END DO
805
806	! Work out dimensions of boundary data on each processor
807	! ------------------------------------------------------
808
809	! Rather assume that boundary data indices are given on global domain
810	! TO BE DISCUSSED ?
811	! iw = mig(1) + 1 ! if monotasking and no zoom, iw=2
812	! ie = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1
813	! is = mjg(1) + 1 ! if monotasking and no zoom, is=2
814	! in = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1
815	iwe = mig(1) - 1 + 2 ! if monotasking and no zoom, iw=2
816	ies = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1
817	iso = mjg(1) - 1 + 2 ! if monotasking and no zoom, is=2
818	ino = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1
819
820	ALLOCATE( nbondi_bdy(nb_bdy))
821	ALLOCATE( nbondj_bdy(nb_bdy))
822	nbondi_bdy(:)=2
823	nbondj_bdy(:)=2
824	ALLOCATE( nbondi_bdy_b(nb_bdy))
825	ALLOCATE( nbondj_bdy_b(nb_bdy))
826	nbondi_bdy_b(:)=2
827	nbondj_bdy_b(:)=2
828
829	! Work out dimensions of boundary data on each neighbour process
830	IF(nbondi == 0) THEN
831	iw_b(1) = 1 + nimppt(nowe+1)
832	ie_b(1) = 1 + nimppt(nowe+1)+nlcit(nowe+1)-3
833	is_b(1) = 1 + njmppt(nowe+1)
834	in_b(1) = 1 + njmppt(nowe+1)+nlcjt(nowe+1)-3
835
836	iw_b(2) = 1 + nimppt(noea+1)
837	ie_b(2) = 1 + nimppt(noea+1)+nlcit(noea+1)-3
838	is_b(2) = 1 + njmppt(noea+1)
839	in_b(2) = 1 + njmppt(noea+1)+nlcjt(noea+1)-3
840	ELSEIF(nbondi == 1) THEN
841	iw_b(1) = 1 + nimppt(nowe+1)
842	ie_b(1) = 1 + nimppt(nowe+1)+nlcit(nowe+1)-3
843	is_b(1) = 1 + njmppt(nowe+1)
844	in_b(1) = 1 + njmppt(nowe+1)+nlcjt(nowe+1)-3
845	ELSEIF(nbondi == -1) THEN
846	iw_b(2) = 1 + nimppt(noea+1)
847	ie_b(2) = 1 + nimppt(noea+1)+nlcit(noea+1)-3
848	is_b(2) = 1 + njmppt(noea+1)
849	in_b(2) = 1 + njmppt(noea+1)+nlcjt(noea+1)-3
850	ENDIF
851
852	IF(nbondj == 0) THEN
853	iw_b(3) = 1 + nimppt(noso+1)
854	ie_b(3) = 1 + nimppt(noso+1)+nlcit(noso+1)-3
855	is_b(3) = 1 + njmppt(noso+1)
856	in_b(3) = 1 + njmppt(noso+1)+nlcjt(noso+1)-3
857
858	iw_b(4) = 1 + nimppt(nono+1)
859	ie_b(4) = 1 + nimppt(nono+1)+nlcit(nono+1)-3
860	is_b(4) = 1 + njmppt(nono+1)
861	in_b(4) = 1 + njmppt(nono+1)+nlcjt(nono+1)-3
862	ELSEIF(nbondj == 1) THEN
863	iw_b(3) = 1 + nimppt(noso+1)
864	ie_b(3) = 1 + nimppt(noso+1)+nlcit(noso+1)-3
865	is_b(3) = 1 + njmppt(noso+1)
866	in_b(3) = 1 + njmppt(noso+1)+nlcjt(noso+1)-3
867	ELSEIF(nbondj == -1) THEN
868	iw_b(4) = 1 + nimppt(nono+1)
869	ie_b(4) = 1 + nimppt(nono+1)+nlcit(nono+1)-3
870	is_b(4) = 1 + njmppt(nono+1)
871	in_b(4) = 1 + njmppt(nono+1)+nlcjt(nono+1)-3
872	ENDIF
873
874	DO ib_bdy = 1, nb_bdy
875	DO igrd = 1, jpbgrd
876	icount = 0
877	icountr = 0
878	idx_bdy(ib_bdy)%nblen(igrd) = 0
879	idx_bdy(ib_bdy)%nblenrim(igrd) = 0
880	DO ib = 1, nblendta(igrd,ib_bdy)
881	! check that data is in correct order in file
882	ibm1 = MAX(1,ib-1)
883	IF(lwp) THEN ! Since all procs read global data only need to do this check on one proc...
884	IF( nbrdta(ib,igrd,ib_bdy) < nbrdta(ibm1,igrd,ib_bdy) ) THEN
885	CALL ctl_stop('bdy_segs : ERROR : boundary data in file must be defined ', &
886	& ' in order of distance from edge nbr A utility for re-ordering ', &
887	& ' boundary coordinates and data files exists in the TOOLS/OBC directory')
888	ENDIF
889	ENDIF
890	! check if point is in local domain
891	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
892	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino ) THEN
893	!
894	icount = icount + 1
895	!
896	IF( nbrdta(ib,igrd,ib_bdy) == 1 ) icountr = icountr+1
897	ENDIF
898	ENDDO
899	idx_bdy(ib_bdy)%nblenrim(igrd) = icountr !: length of rim boundary data on each proc
900	idx_bdy(ib_bdy)%nblen (igrd) = icount !: length of boundary data on each proc
901	ENDDO ! igrd
902
903	! Allocate index arrays for this boundary set
904	!--------------------------------------------
905	ilen1 = MAXVAL( idx_bdy(ib_bdy)%nblen(:) )
906	ALLOCATE( idx_bdy(ib_bdy)%nbi (ilen1,jpbgrd) )
907	ALLOCATE( idx_bdy(ib_bdy)%nbj (ilen1,jpbgrd) )
908	ALLOCATE( idx_bdy(ib_bdy)%nbr (ilen1,jpbgrd) )
909	ALLOCATE( idx_bdy(ib_bdy)%nbd (ilen1,jpbgrd) )
910	ALLOCATE( idx_bdy(ib_bdy)%nbdout(ilen1,jpbgrd) )
911	ALLOCATE( idx_bdy(ib_bdy)%nbmap (ilen1,jpbgrd) )
912	ALLOCATE( idx_bdy(ib_bdy)%nbw (ilen1,jpbgrd) )
913	ALLOCATE( idx_bdy(ib_bdy)%flagu (ilen1,jpbgrd) )
914	ALLOCATE( idx_bdy(ib_bdy)%flagv (ilen1,jpbgrd) )
915
916	! Dispatch mapping indices and discrete distances on each processor
917	! -----------------------------------------------------------------
918
919	com_east = 0
920	com_west = 0
921	com_south = 0
922	com_north = 0
923
924	com_east_b = 0
925	com_west_b = 0
926	com_south_b = 0
927	com_north_b = 0
928
929	DO igrd = 1, jpbgrd
930	icount = 0
931	! Loop on rimwidth to ensure outermost points come first in the local arrays.
932	DO ir=1, nn_rimwidth(ib_bdy)
933	DO ib = 1, nblendta(igrd,ib_bdy)
934	! check if point is in local domain and equals ir
935	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
936	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino .AND. &
937	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
938	!
939	icount = icount + 1
940
941	! Rather assume that boundary data indices are given on global domain
942	! TO BE DISCUSSED ?
943	! idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+1
944	! idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+1
945	idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+1
946	idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+1
947	! check if point has to be sent
948	ii = idx_bdy(ib_bdy)%nbi(icount,igrd)
949	ij = idx_bdy(ib_bdy)%nbj(icount,igrd)
950	if((com_east .ne. 1) .and. (ii == (nlci-1)) .and. (nbondi .le. 0)) then
951	com_east = 1
952	elseif((com_west .ne. 1) .and. (ii == 2) .and. (nbondi .ge. 0) .and. (nbondi .ne. 2)) then
953	com_west = 1
954	endif
955	if((com_south .ne. 1) .and. (ij == 2) .and. (nbondj .ge. 0) .and. (nbondj .ne. 2)) then
956	com_south = 1
957	elseif((com_north .ne. 1) .and. (ij == (nlcj-1)) .and. (nbondj .le. 0)) then
958	com_north = 1
959	endif
960	idx_bdy(ib_bdy)%nbr(icount,igrd) = nbrdta(ib,igrd,ib_bdy)
961	idx_bdy(ib_bdy)%nbmap(icount,igrd) = ib
962	ENDIF
963	! check if point has to be received from a neighbour
964	IF(nbondi == 0) THEN
965	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
966	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
967	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
968	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
969	if((com_west_b .ne. 1) .and. (ii == (nlcit(nowe+1)-1))) then
970	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
971	if((ij == 2) .and. (nbondj == 0 .or. nbondj == 1)) then
972	com_south = 1
973	elseif((ij == nlcjt(nowe+1)-1) .and. (nbondj == 0 .or. nbondj == -1)) then
974	com_north = 1
975	endif
976	com_west_b = 1
977	endif
978	ENDIF
979	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
980	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
981	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
982	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
983	if((com_east_b .ne. 1) .and. (ii == 2)) then
984	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
985	if((ij == 2) .and. (nbondj == 0 .or. nbondj == 1)) then
986	com_south = 1
987	elseif((ij == nlcjt(noea+1)-1) .and. (nbondj == 0 .or. nbondj == -1)) then
988	com_north = 1
989	endif
990	com_east_b = 1
991	endif
992	ENDIF
993	ELSEIF(nbondi == 1) THEN
994	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
995	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
996	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
997	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
998	if((com_west_b .ne. 1) .and. (ii == (nlcit(nowe+1)-1))) then
999	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
1000	if((ij == 2) .and. (nbondj == 0 .or. nbondj == 1)) then
1001	com_south = 1
1002	elseif((ij == nlcjt(nowe+1)-1) .and. (nbondj == 0 .or. nbondj == -1)) then
1003	com_north = 1
1004	endif
1005	com_west_b = 1
1006	endif
1007	ENDIF
1008	ELSEIF(nbondi == -1) THEN
1009	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
1010	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
1011	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1012	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
1013	if((com_east_b .ne. 1) .and. (ii == 2)) then
1014	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
1015	if((ij == 2) .and. (nbondj == 0 .or. nbondj == 1)) then
1016	com_south = 1
1017	elseif((ij == nlcjt(noea+1)-1) .and. (nbondj == 0 .or. nbondj == -1)) then
1018	com_north = 1
1019	endif
1020	com_east_b = 1
1021	endif
1022	ENDIF
1023	ENDIF
1024	IF(nbondj == 0) THEN
1025	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
1026	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
1027	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1028	com_north_b = 1
1029	ENDIF
1030	IF(com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 &
1031	&.OR. nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
1032	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1033	com_south_b = 1
1034	ENDIF
1035	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1036	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1037	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1038	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1039	if((com_south_b .ne. 1) .and. (ij == (nlcjt(noso+1)-1))) then
1040	com_south_b = 1
1041	endif
1042	ENDIF
1043	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1044	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1045	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1046	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1047	if((com_north_b .ne. 1) .and. (ij == 2)) then
1048	com_north_b = 1
1049	endif
1050	ENDIF
1051	ELSEIF(nbondj == 1) THEN
1052	IF( com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 .OR. &
1053	& nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
1054	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1055	com_south_b = 1
1056	ENDIF
1057	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1058	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1059	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1060	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1061	if((com_south_b .ne. 1) .and. (ij == (nlcjt(noso+1)-1))) then
1062	com_south_b = 1
1063	endif
1064	ENDIF
1065	ELSEIF(nbondj == -1) THEN
1066	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
1067	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
1068	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1069	com_north_b = 1
1070	ENDIF
1071	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1072	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1073	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1074	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1075	if((com_north_b .ne. 1) .and. (ij == 2)) then
1076	com_north_b = 1
1077	endif
1078	ENDIF
1079	ENDIF
1080	ENDDO
1081	ENDDO
1082	ENDDO
1083
1084	! definition of the i- and j- direction local boundaries arrays used for sending the boundaries
1085	IF( (com_east == 1) .and. (com_west == 1) ) THEN ; nbondi_bdy(ib_bdy) = 0
1086	ELSEIF( (com_east == 1) .and. (com_west == 0) ) THEN ; nbondi_bdy(ib_bdy) = -1
1087	ELSEIF( (com_east == 0) .and. (com_west == 1) ) THEN ; nbondi_bdy(ib_bdy) = 1
1088	ENDIF
1089	IF( (com_north == 1) .and. (com_south == 1) ) THEN ; nbondj_bdy(ib_bdy) = 0
1090	ELSEIF( (com_north == 1) .and. (com_south == 0) ) THEN ; nbondj_bdy(ib_bdy) = -1
1091	ELSEIF( (com_north == 0) .and. (com_south == 1) ) THEN ; nbondj_bdy(ib_bdy) = 1
1092	ENDIF
1093
1094	! definition of the i- and j- direction local boundaries arrays used for receiving the boundaries
1095	IF( (com_east_b == 1) .and. (com_west_b == 1) ) THEN ; nbondi_bdy_b(ib_bdy) = 0
1096	ELSEIF( (com_east_b == 1) .and. (com_west_b == 0) ) THEN ; nbondi_bdy_b(ib_bdy) = -1
1097	ELSEIF( (com_east_b == 0) .and. (com_west_b == 1) ) THEN ; nbondi_bdy_b(ib_bdy) = 1
1098	ENDIF
1099	IF( (com_north_b == 1) .and. (com_south_b == 1) ) THEN ; nbondj_bdy_b(ib_bdy) = 0
1100	ELSEIF( (com_north_b == 1) .and. (com_south_b == 0) ) THEN ; nbondj_bdy_b(ib_bdy) = -1
1101	ELSEIF( (com_north_b == 0) .and. (com_south_b == 1) ) THEN ; nbondj_bdy_b(ib_bdy) = 1
1102	ENDIF
1103
1104	! Compute rim weights for FRS scheme
1105	! ----------------------------------
1106	DO igrd = 1, jpbgrd
1107	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1108	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1109	idx_bdy(ib_bdy)%nbw(ib,igrd) = 1.- TANH( REAL( nbr - 1 ) *0.5 ) ! tanh formulation
1110	! idx_bdy(ib_bdy)%nbw(ib,igrd) = (REAL(nn_rimwidth(ib_bdy)+1-nbr)/REAL(nn_rimwidth(ib_bdy)))**2. ! quadratic
1111	! idx_bdy(ib_bdy)%nbw(ib,igrd) = REAL(nn_rimwidth(ib_bdy)+1-nbr)/REAL(nn_rimwidth(ib_bdy)) ! linear
1112	END DO
1113	END DO
1114
1115	! Compute damping coefficients
1116	! ----------------------------
1117	DO igrd = 1, jpbgrd
1118	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1119	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1120	idx_bdy(ib_bdy)%nbd(ib,igrd) = 1. / ( rn_time_dmp(ib_bdy) * rday ) &
1121	& (REAL(nn_rimwidth(ib_bdy)+1-nbr)/REAL(nn_rimwidth(ib_bdy)))*2. ! quadratic
1122	idx_bdy(ib_bdy)%nbdout(ib,igrd) = 1. / ( rn_time_dmp_out(ib_bdy) * rday ) &
1123	& (REAL(nn_rimwidth(ib_bdy)+1-nbr)/REAL(nn_rimwidth(ib_bdy)))*2. ! quadratic
1124	END DO
1125	END DO
1126
1127	ENDDO
1128
1129	! ------------------------------------------------------
1130	! Initialise masks and find normal/tangential directions
1131	! ------------------------------------------------------
1132
1133	! Read global 2D mask at T-points: bdytmask
1134	! -----------------------------------------
1135	! bdytmask = 1 on the computational domain AND on open boundaries
1136	! = 0 elsewhere
1137
1138	bdytmask(:,:) = ssmask(:,:)
1139
1140	IF( ln_mask_file ) THEN
1141	CALL iom_open( cn_mask_file, inum )
1142	CALL iom_get ( inum, jpdom_data, 'bdy_msk', bdytmask(:,:) )
1143	CALL iom_close( inum )
1144
1145	! Derive mask on U and V grid from mask on T grid
1146	bdyumask(:,:) = 0._wp
1147	bdyvmask(:,:) = 0._wp
1148	DO ij=1, jpjm1
1149	DO ii=1, jpim1
1150	bdyumask(ii,ij) = bdytmask(ii,ij) * bdytmask(ii+1, ij )
1151	bdyvmask(ii,ij) = bdytmask(ii,ij) * bdytmask(ii ,ij+1)
1152	END DO
1153	END DO
1154	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1155
1156	ENDIF ! ln_mask_file=.TRUE.
1157
1158	IF( .NOT.ln_mask_file ) THEN
1159	! If .not. ln_mask_file then we need to derive mask on U and V grid from mask on T grid here.
1160	bdyumask(:,:) = 0._wp
1161	bdyvmask(:,:) = 0._wp
1162	DO ij = 1, jpjm1
1163	DO ii = 1, jpim1
1164	bdyumask(ii,ij) = bdytmask(ii,ij) * bdytmask(ii+1, ij )
1165	bdyvmask(ii,ij) = bdytmask(ii,ij) * bdytmask(ii ,ij+1)
1166	END DO
1167	END DO
1168	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1169	ENDIF
1170
1171	! bdy masks are now set to zero on boundary points:
1172	!
1173	igrd = 1
1174	DO ib_bdy = 1, nb_bdy
1175	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1176	bdytmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0._wp
1177	END DO
1178	END DO
1179	!
1180	igrd = 2
1181	DO ib_bdy = 1, nb_bdy
1182	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1183	bdyumask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0._wp
1184	END DO
1185	END DO
1186	!
1187	igrd = 3
1188	DO ib_bdy = 1, nb_bdy
1189	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1190	bdyvmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0._wp
1191	ENDDO
1192	ENDDO
1193
1194	! For the flagu/flagv calculation below we require a version of fmask without
1195	! the land boundary condition (shlat) included:
1196	CALL wrk_alloc(jpi,jpj, zfmask )
1197	DO ij = 2, jpjm1
1198	DO ii = 2, jpim1
1199	zfmask(ii,ij) = tmask(ii,ij ,1) * tmask(ii+1,ij ,1) &
1200	& * tmask(ii,ij+1,1) * tmask(ii+1,ij+1,1)
1201	END DO
1202	END DO
1203
1204	! Lateral boundary conditions
1205	CALL lbc_lnk( zfmask , 'F', 1. )
1206	CALL lbc_lnk( fmask , 'F', 1. ) ; CALL lbc_lnk( bdytmask(:,:), 'T', 1. )
1207	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. )
1208
1209	DO ib_bdy = 1, nb_bdy ! Indices and directions of rim velocity components
1210
1211	idx_bdy(ib_bdy)%flagu(:,:) = 0._wp
1212	idx_bdy(ib_bdy)%flagv(:,:) = 0._wp
1213	icount = 0
1214
1215	! Calculate relationship of U direction to the local orientation of the boundary
1216	! flagu = -1 : u component is normal to the dynamical boundary and its direction is outward
1217	! flagu = 0 : u is tangential
1218	! flagu = 1 : u is normal to the boundary and is direction is inward
1219
1220	DO igrd = 1,jpbgrd
1221	SELECT CASE( igrd )
1222	CASE( 1 ) ; pmask => umask (:,:,1) ; i_offset = 0
1223	CASE( 2 ) ; pmask => bdytmask(:,:) ; i_offset = 1
1224	CASE( 3 ) ; pmask => zfmask (:,:) ; i_offset = 0
1225	END SELECT
1226	icount = 0
1227	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1228	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1229	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1230	zefl = pmask(nbi+i_offset-1,nbj)
1231	zwfl = pmask(nbi+i_offset,nbj)
1232	! This error check only works if you are using the bdyXmask arrays
1233	IF( i_offset == 1 .and. zefl + zwfl == 2 ) THEN
1234	icount = icount + 1
1235	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1236	ELSE
1237	idx_bdy(ib_bdy)%flagu(ib,igrd) = -zefl + zwfl
1238	ENDIF
1239	END DO
1240	IF( icount /= 0 ) THEN
1241	IF(lwp) WRITE(numout,*)
1242	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1243	' are not boundary points (flagu calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1244	IF(lwp) WRITE(numout,*) ' ========== '
1245	IF(lwp) WRITE(numout,*)
1246	nstop = nstop + 1
1247	ENDIF
1248	END DO
1249
1250	! Calculate relationship of V direction to the local orientation of the boundary
1251	! flagv = -1 : v component is normal to the dynamical boundary but its direction is outward
1252	! flagv = 0 : v is tangential
1253	! flagv = 1 : v is normal to the boundary and is direction is inward
1254
1255	DO igrd = 1, jpbgrd
1256	SELECT CASE( igrd )
1257	CASE( 1 ) ; pmask => vmask (:,:,1) ; j_offset = 0
1258	CASE( 2 ) ; pmask => zfmask(:,:) ; j_offset = 0
1259	CASE( 3 ) ; pmask => bdytmask ; j_offset = 1
1260	END SELECT
1261	icount = 0
1262	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1263	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1264	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1265	znfl = pmask(nbi,nbj+j_offset-1)
1266	zsfl = pmask(nbi,nbj+j_offset )
1267	! This error check only works if you are using the bdyXmask arrays
1268	IF( j_offset == 1 .and. znfl + zsfl == 2 ) THEN
1269	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1270	icount = icount + 1
1271	ELSE
1272	idx_bdy(ib_bdy)%flagv(ib,igrd) = -znfl + zsfl
1273	END IF
1274	END DO
1275	IF( icount /= 0 ) THEN
1276	IF(lwp) WRITE(numout,*)
1277	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1278	' are not boundary points (flagv calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1279	IF(lwp) WRITE(numout,*) ' ========== '
1280	IF(lwp) WRITE(numout,*)
1281	nstop = nstop + 1
1282	ENDIF
1283	END DO
1284	!
1285	END DO
1286
1287	! Compute total lateral surface for volume correction:
1288	! ----------------------------------------------------
1289	! JC: this must be done at each time step with non-linear free surface
1290	bdysurftot = 0._wp
1291	IF( ln_vol ) THEN
1292	igrd = 2 ! Lateral surface at U-points
1293	DO ib_bdy = 1, nb_bdy
1294	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1295	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1296	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1297	flagu => idx_bdy(ib_bdy)%flagu(ib,igrd)
1298	bdysurftot = bdysurftot + hu_n (nbi , nbj) &
1299	& * e2u (nbi , nbj) * ABS( flagu ) &
1300	& * tmask_i(nbi , nbj) &
1301	& * tmask_i(nbi+1, nbj)
1302	END DO
1303	END DO
1304
1305	igrd=3 ! Add lateral surface at V-points
1306	DO ib_bdy = 1, nb_bdy
1307	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1308	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1309	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1310	flagv => idx_bdy(ib_bdy)%flagv(ib,igrd)
1311	bdysurftot = bdysurftot + hv_n (nbi, nbj ) &
1312	& * e1v (nbi, nbj ) * ABS( flagv ) &
1313	& * tmask_i(nbi, nbj ) &
1314	& * tmask_i(nbi, nbj+1)
1315	END DO
1316	END DO
1317	!
1318	IF( lk_mpp ) CALL mpp_sum( bdysurftot ) ! sum over the global domain
1319	END IF
1320	!
1321	! Tidy up
1322	!--------
1323	IF( nb_bdy>0 ) DEALLOCATE( nbidta, nbjdta, nbrdta )
1324	!
1325	CALL wrk_dealloc(jpi,jpj, zfmask )
1326	!
1327	IF( nn_timing == 1 ) CALL timing_stop('bdy_segs')
1328	!
1329	END SUBROUTINE bdy_segs
1330
1331	SUBROUTINE bdy_ctl_seg
1332	!!----------------------------------------------------------------------
1333	!! * ROUTINE bdy_ctl_seg *
1334	!!
1335	!! ** Purpose : Check straight open boundary segments location
1336	!!
1337	!! ** Method : - Look for open boundary corners
1338	!! - Check that segments start or end on land
1339	!!----------------------------------------------------------------------
1340	INTEGER :: ib, ib1, ib2, ji ,jj, itest
1341	INTEGER, DIMENSION(jp_nseg,2) :: icorne, icornw, icornn, icorns
1342	REAL(wp), DIMENSION(2) :: ztestmask
1343	!!----------------------------------------------------------------------
1344	!
1345	IF (lwp) WRITE(numout,*) ' '
1346	IF (lwp) WRITE(numout,*) 'bdy_ctl_seg: Check analytical segments'
1347	IF (lwp) WRITE(numout,*) '~~~~~~~~~~~~'
1348	!
1349	IF(lwp) WRITE(numout,*) 'Number of east segments : ', nbdysege
1350	IF(lwp) WRITE(numout,*) 'Number of west segments : ', nbdysegw
1351	IF(lwp) WRITE(numout,*) 'Number of north segments : ', nbdysegn
1352	IF(lwp) WRITE(numout,*) 'Number of south segments : ', nbdysegs
1353	! 1. Check bounds
1354	!----------------
1355	DO ib = 1, nbdysegn
1356	IF (lwp) WRITE(numout,) '*check north seg bounds pckg: ', npckgn(ib)
1357	IF ((jpjnob(ib).ge.jpjglo-1).or.&
1358	&(jpjnob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1359	IF (jpindt(ib).ge.jpinft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1360	IF (jpindt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1361	IF (jpinft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1362	END DO
1363	!
1364	DO ib = 1, nbdysegs
1365	IF (lwp) WRITE(numout,) '*check south seg bounds pckg: ', npckgs(ib)
1366	IF ((jpjsob(ib).ge.jpjglo-1).or.&
1367	&(jpjsob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1368	IF (jpisdt(ib).ge.jpisft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1369	IF (jpisdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1370	IF (jpisft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1371	END DO
1372	!
1373	DO ib = 1, nbdysege
1374	IF (lwp) WRITE(numout,) '*check east seg bounds pckg: ', npckge(ib)
1375	IF ((jpieob(ib).ge.jpiglo-1).or.&
1376	&(jpieob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1377	IF (jpjedt(ib).ge.jpjeft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1378	IF (jpjedt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1379	IF (jpjeft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1380	END DO
1381	!
1382	DO ib = 1, nbdysegw
1383	IF (lwp) WRITE(numout,) '*check west seg bounds pckg: ', npckgw(ib)
1384	IF ((jpiwob(ib).ge.jpiglo-1).or.&
1385	&(jpiwob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1386	IF (jpjwdt(ib).ge.jpjwft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1387	IF (jpjwdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1388	IF (jpjwft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1389	ENDDO
1390	!
1391	!
1392	! 2. Look for segment crossings
1393	!------------------------------
1394	IF (lwp) WRITE(numout,) '*Look for segments corners :'
1395	!
1396	itest = 0 ! corner number
1397	!
1398	! flag to detect if start or end of open boundary belongs to a corner
1399	! if not (=0), it must be on land.
1400	! if a corner is detected, save bdy package number for further tests
1401	icorne(:,:)=0. ; icornw(:,:)=0. ; icornn(:,:)=0. ; icorns(:,:)=0.
1402	! South/West crossings
1403	IF ((nbdysegw > 0).AND.(nbdysegs > 0)) THEN
1404	DO ib1 = 1, nbdysegw
1405	DO ib2 = 1, nbdysegs
1406	IF (( jpisdt(ib2)<=jpiwob(ib1)).AND. &
1407	& ( jpisft(ib2)>=jpiwob(ib1)).AND. &
1408	& ( jpjwdt(ib1)<=jpjsob(ib2)).AND. &
1409	& ( jpjwft(ib1)>=jpjsob(ib2))) THEN
1410	IF ((jpjwdt(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpiwob(ib1))) THEN
1411	! We have a possible South-West corner
1412	! WRITE(numout,*) ' Found a South-West corner at (i,j): ', jpisdt(ib2), jpjwdt(ib1)
1413	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgs(ib2)
1414	icornw(ib1,1) = npckgs(ib2)
1415	icorns(ib2,1) = npckgw(ib1)
1416	ELSEIF ((jpisft(ib2)==jpiwob(ib1)).AND.(jpjwft(ib1)==jpjsob(ib2))) THEN
1417	IF(lwp) WRITE(numout,*)
1418	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1419	& jpisft(ib2), jpjwft(ib1)
1420	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1421	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1422	& ' and South segment: ',npckgs(ib2)
1423	IF(lwp) WRITE(numout,*)
1424	nstop = nstop + 1
1425	ELSE
1426	IF(lwp) WRITE(numout,*)
1427	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and West Open boundary indices'
1428	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1) , &
1429	& ' and South segment: ',npckgs(ib2)
1430	IF(lwp) WRITE(numout,*)
1431	nstop = nstop+1
1432	END IF
1433	END IF
1434	END DO
1435	END DO
1436	END IF
1437	!
1438	! South/East crossings
1439	IF ((nbdysege > 0).AND.(nbdysegs > 0)) THEN
1440	DO ib1 = 1, nbdysege
1441	DO ib2 = 1, nbdysegs
1442	IF (( jpisdt(ib2)<=jpieob(ib1)+1).AND. &
1443	& ( jpisft(ib2)>=jpieob(ib1)+1).AND. &
1444	& ( jpjedt(ib1)<=jpjsob(ib2) ).AND. &
1445	& ( jpjeft(ib1)>=jpjsob(ib2) )) THEN
1446	IF ((jpjedt(ib1)==jpjsob(ib2)).AND.(jpisft(ib2)==jpieob(ib1)+1)) THEN
1447	! We have a possible South-East corner
1448	! WRITE(numout,*) ' Found a South-East corner at (i,j): ', jpisft(ib2), jpjedt(ib1)
1449	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgs(ib2)
1450	icorne(ib1,1) = npckgs(ib2)
1451	icorns(ib2,2) = npckge(ib1)
1452	ELSEIF ((jpjeft(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpieob(ib1)+1)) THEN
1453	IF(lwp) WRITE(numout,*)
1454	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1455	& jpisdt(ib2), jpjeft(ib1)
1456	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1457	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1458	& ' and South segment: ',npckgs(ib2)
1459	IF(lwp) WRITE(numout,*)
1460	nstop = nstop + 1
1461	ELSE
1462	IF(lwp) WRITE(numout,*)
1463	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and East Open boundary indices'
1464	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1465	& ' and South segment: ',npckgs(ib2)
1466	IF(lwp) WRITE(numout,*)
1467	nstop = nstop + 1
1468	END IF
1469	END IF
1470	END DO
1471	END DO
1472	END IF
1473	!
1474	! North/West crossings
1475	IF ((nbdysegn > 0).AND.(nbdysegw > 0)) THEN
1476	DO ib1 = 1, nbdysegw
1477	DO ib2 = 1, nbdysegn
1478	IF (( jpindt(ib2)<=jpiwob(ib1) ).AND. &
1479	& ( jpinft(ib2)>=jpiwob(ib1) ).AND. &
1480	& ( jpjwdt(ib1)<=jpjnob(ib2)+1).AND. &
1481	& ( jpjwft(ib1)>=jpjnob(ib2)+1)) THEN
1482	IF ((jpjwft(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpiwob(ib1))) THEN
1483	! We have a possible North-West corner
1484	! WRITE(numout,*) ' Found a North-West corner at (i,j): ', jpindt(ib2), jpjwft(ib1)
1485	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgn(ib2)
1486	icornw(ib1,2) = npckgn(ib2)
1487	icornn(ib2,1) = npckgw(ib1)
1488	ELSEIF ((jpjwdt(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpiwob(ib1))) THEN
1489	IF(lwp) WRITE(numout,*)
1490	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1491	& jpinft(ib2), jpjwdt(ib1)
1492	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1493	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1494	& ' and North segment: ',npckgn(ib2)
1495	IF(lwp) WRITE(numout,*)
1496	nstop = nstop + 1
1497	ELSE
1498	IF(lwp) WRITE(numout,*)
1499	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and West Open boundary indices'
1500	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1), &
1501	& ' and North segment: ',npckgn(ib2)
1502	IF(lwp) WRITE(numout,*)
1503	nstop = nstop + 1
1504	END IF
1505	END IF
1506	END DO
1507	END DO
1508	END IF
1509	!
1510	! North/East crossings
1511	IF ((nbdysegn > 0).AND.(nbdysege > 0)) THEN
1512	DO ib1 = 1, nbdysege
1513	DO ib2 = 1, nbdysegn
1514	IF (( jpindt(ib2)<=jpieob(ib1)+1).AND. &
1515	& ( jpinft(ib2)>=jpieob(ib1)+1).AND. &
1516	& ( jpjedt(ib1)<=jpjnob(ib2)+1).AND. &
1517	& ( jpjeft(ib1)>=jpjnob(ib2)+1)) THEN
1518	IF ((jpjeft(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpieob(ib1)+1)) THEN
1519	! We have a possible North-East corner
1520	! WRITE(numout,*) ' Found a North-East corner at (i,j): ', jpinft(ib2), jpjeft(ib1)
1521	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgn(ib2)
1522	icorne(ib1,2) = npckgn(ib2)
1523	icornn(ib2,2) = npckge(ib1)
1524	ELSEIF ((jpjedt(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpieob(ib1)+1)) THEN
1525	IF(lwp) WRITE(numout,*)
1526	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1527	& jpindt(ib2), jpjedt(ib1)
1528	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1529	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1530	& ' and North segment: ',npckgn(ib2)
1531	IF(lwp) WRITE(numout,*)
1532	nstop = nstop + 1
1533	ELSE
1534	IF(lwp) WRITE(numout,*)
1535	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and East Open boundary indices'
1536	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1537	& ' and North segment: ',npckgn(ib2)
1538	IF(lwp) WRITE(numout,*)
1539	nstop = nstop + 1
1540	END IF
1541	END IF
1542	END DO
1543	END DO
1544	END IF
1545	!
1546	! 3. Check if segment extremities are on land
1547	!--------------------------------------------
1548	!
1549	! West segments
1550	DO ib = 1, nbdysegw
1551	! get mask at boundary extremities:
1552	ztestmask(1:2)=0.
1553	DO ji = 1, jpi
1554	DO jj = 1, jpj
1555	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1556	& ((jj + njmpp - 1) == jpjwdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1557	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1558	& ((jj + njmpp - 1) == jpjwft(ib))) ztestmask(2)=tmask(ji,jj,1)
1559	END DO
1560	END DO
1561	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1562
1563	IF (ztestmask(1)==1) THEN
1564	IF (icornw(ib,1)==0) THEN
1565	IF(lwp) WRITE(numout,*)
1566	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(ib)
1567	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1568	IF(lwp) WRITE(numout,*)
1569	nstop = nstop + 1
1570	ELSE
1571	! This is a corner
1572	IF(lwp) WRITE(numout,*) 'Found a South-West corner at (i,j): ', jpiwob(ib), jpjwdt(ib)
1573	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,1))
1574	itest=itest+1
1575	ENDIF
1576	ENDIF
1577	IF (ztestmask(2)==1) THEN
1578	IF (icornw(ib,2)==0) THEN
1579	IF(lwp) WRITE(numout,*)
1580	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(ib)
1581	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1582	IF(lwp) WRITE(numout,*)
1583	nstop = nstop + 1
1584	ELSE
1585	! This is a corner
1586	IF(lwp) WRITE(numout,*) 'Found a North-West corner at (i,j): ', jpiwob(ib), jpjwft(ib)
1587	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,2))
1588	itest=itest+1
1589	ENDIF
1590	ENDIF
1591	END DO
1592	!
1593	! East segments
1594	DO ib = 1, nbdysege
1595	! get mask at boundary extremities:
1596	ztestmask(1:2)=0.
1597	DO ji = 1, jpi
1598	DO jj = 1, jpj
1599	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1600	& ((jj + njmpp - 1) == jpjedt(ib))) ztestmask(1)=tmask(ji,jj,1)
1601	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1602	& ((jj + njmpp - 1) == jpjeft(ib))) ztestmask(2)=tmask(ji,jj,1)
1603	END DO
1604	END DO
1605	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1606
1607	IF (ztestmask(1)==1) THEN
1608	IF (icorne(ib,1)==0) THEN
1609	IF(lwp) WRITE(numout,*)
1610	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1611	IF(lwp) WRITE(numout,*) ' ========== does not start 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 South-East corner at (i,j): ', jpieob(ib)+1, jpjedt(ib)
1617	CALL bdy_ctl_corn(npckge(ib), icorne(ib,1))
1618	itest=itest+1
1619	ENDIF
1620	ENDIF
1621	IF (ztestmask(2)==1) THEN
1622	IF (icorne(ib,2)==0) THEN
1623	IF(lwp) WRITE(numout,*)
1624	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1625	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1626	IF(lwp) WRITE(numout,*)
1627	nstop = nstop + 1
1628	ELSE
1629	! This is a corner
1630	IF(lwp) WRITE(numout,*) 'Found a North-East corner at (i,j): ', jpieob(ib)+1, jpjeft(ib)
1631	CALL bdy_ctl_corn(npckge(ib), icorne(ib,2))
1632	itest=itest+1
1633	ENDIF
1634	ENDIF
1635	END DO
1636	!
1637	! South segments
1638	DO ib = 1, nbdysegs
1639	! get mask at boundary extremities:
1640	ztestmask(1:2)=0.
1641	DO ji = 1, jpi
1642	DO jj = 1, jpj
1643	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1644	& ((ji + nimpp - 1) == jpisdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1645	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1646	& ((ji + nimpp - 1) == jpisft(ib))) ztestmask(2)=tmask(ji,jj,1)
1647	END DO
1648	END DO
1649	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1650
1651	IF ((ztestmask(1)==1).AND.(icorns(ib,1)==0)) THEN
1652	IF(lwp) WRITE(numout,*)
1653	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1654	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1655	IF(lwp) WRITE(numout,*)
1656	nstop = nstop + 1
1657	ENDIF
1658	IF ((ztestmask(2)==1).AND.(icorns(ib,2)==0)) THEN
1659	IF(lwp) WRITE(numout,*)
1660	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1661	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1662	IF(lwp) WRITE(numout,*)
1663	nstop = nstop + 1
1664	ENDIF
1665	END DO
1666	!
1667	! North segments
1668	DO ib = 1, nbdysegn
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) == jpjnob(ib)+1).AND. &
1674	& ((ji + nimpp - 1) == jpindt(ib))) ztestmask(1)=tmask(ji,jj,1)
1675	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1676	& ((ji + nimpp - 1) == jpinft(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.(icornn(ib,1)==0)) THEN
1682	IF(lwp) WRITE(numout,*)
1683	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1684	IF(lwp) WRITE(numout,*) ' ========== does not start on land'
1685	IF(lwp) WRITE(numout,*)
1686	nstop = nstop + 1
1687	ENDIF
1688	IF ((ztestmask(2)==1).AND.(icornn(ib,2)==0)) THEN
1689	IF(lwp) WRITE(numout,*)
1690	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1691	IF(lwp) WRITE(numout,*) ' ========== does not end on land'
1692	IF(lwp) WRITE(numout,*)
1693	nstop = nstop + 1
1694	ENDIF
1695	END DO
1696	!
1697	IF ((itest==0).AND.(lwp)) WRITE(numout,*) 'NO open boundary corner found'
1698	!
1699	! Other tests TBD:
1700	! segments completly on land
1701	! optimized open boundary array length according to landmask
1702	! Nudging layers that overlap with interior domain
1703	!
1704	END SUBROUTINE bdy_ctl_seg
1705
1706	SUBROUTINE bdy_ctl_corn( ib1, ib2 )
1707	!!----------------------------------------------------------------------
1708	!! * ROUTINE bdy_ctl_corn *
1709	!!
1710	!! ** Purpose : Check numerical schemes consistency between
1711	!! segments having a common corner
1712	!!
1713	!! ** Method :
1714	!!----------------------------------------------------------------------
1715	INTEGER, INTENT(in) :: ib1, ib2
1716	INTEGER :: itest
1717	!!----------------------------------------------------------------------
1718	itest = 0
1719
1720	IF( cn_dyn2d(ib1) /= cn_dyn2d(ib2) ) itest = itest + 1
1721	IF( cn_dyn3d(ib1) /= cn_dyn3d(ib2) ) itest = itest + 1
1722	IF( cn_tra (ib1) /= cn_tra (ib2) ) itest = itest + 1
1723	!
1724	IF( nn_dyn2d_dta(ib1) /= nn_dyn2d_dta(ib2) ) itest = itest + 1
1725	IF( nn_dyn3d_dta(ib1) /= nn_dyn3d_dta(ib2) ) itest = itest + 1
1726	IF( nn_tra_dta (ib1) /= nn_tra_dta (ib2) ) itest = itest + 1
1727	!
1728	IF( nn_rimwidth(ib1) /= nn_rimwidth(ib2) ) itest = itest + 1
1729	!
1730	IF( itest>0 ) THEN
1731	IF(lwp) WRITE(numout,*) ' E R R O R : Segments ', ib1, 'and ', ib2
1732	IF(lwp) WRITE(numout,*) ' ========== have different open bdy schemes'
1733	IF(lwp) WRITE(numout,*)
1734	nstop = nstop + 1
1735	ENDIF
1736	!
1737	END SUBROUTINE bdy_ctl_corn
1738
1739	!!=================================================================================
1740	END MODULE bdyini

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source: branches/UKMO/dev_r8183_ICEMODEL_svn_removed/NEMOGCM/NEMO/OPA_SRC/BDY/bdyini.F90 @ 8738

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