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bdyini.F90 @ 9383

Last change on this file since 9383 was 9383, checked in by andmirek, 6 years ago
#2050 fixes and changes
File size: 85.2 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	PRIVATE bdy_namelist, index_namelist
40
41	INTEGER, PARAMETER :: jp_nseg = 100
42	INTEGER, PARAMETER :: nrimmax = 20 ! maximum rimwidth in structured
43	! open boundary data files
44	! Straight open boundary segment parameters:
45	INTEGER :: nbdysege, nbdysegw, nbdysegn, nbdysegs
46	INTEGER, DIMENSION(jp_nseg) :: jpieob, jpjedt, jpjeft, npckge
47	INTEGER, DIMENSION(jp_nseg) :: jpiwob, jpjwdt, jpjwft, npckgw
48	INTEGER, DIMENSION(jp_nseg) :: jpjnob, jpindt, jpinft, npckgn
49	INTEGER, DIMENSION(jp_nseg) :: jpjsob, jpisdt, jpisft, npckgs
50	!!----------------------------------------------------------------------
51	!! NEMO/OPA 4.0 , NEMO Consortium (2011)
52	!! $Id$
53	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
54	!!----------------------------------------------------------------------
55	CONTAINS
56
57	SUBROUTINE bdy_init
58	!!----------------------------------------------------------------------
59	!! * ROUTINE bdy_init *
60	!!
61	!! ** Purpose : Initialization of the dynamics and tracer fields with
62	!! unstructured open boundaries.
63	!!
64	!! ** Method : Read initialization arrays (mask, indices) to identify
65	!! an unstructured open boundary
66	!!
67	!! ** Input : bdy_init.nc, input file for unstructured open boundaries
68	!!----------------------------------------------------------------------
69	! namelist variables
70	!-------------------
71	CHARACTER(LEN=80),DIMENSION(jpbgrd) :: clfile
72	CHARACTER(LEN=1) :: ctypebdy
73	INTEGER :: nbdyind, nbdybeg, nbdyend
74
75	! local variables
76	!-------------------
77	INTEGER :: ib_bdy, ii, ij, ik, igrd, ib, ir, iseg ! dummy loop indices
78	INTEGER :: icount, icountr, ibr_max, ilen1, ibm1 ! local integers
79	INTEGER :: iwe, ies, iso, ino, inum, id_dummy ! - -
80	INTEGER :: igrd_start, igrd_end, jpbdta ! - -
81	INTEGER :: jpbdtau, jpbdtas ! - -
82	INTEGER :: ib_bdy1, ib_bdy2, ib1, ib2 ! - -
83	INTEGER :: i_offset, j_offset ! - -
84	INTEGER, POINTER :: nbi, nbj, nbr ! short cuts
85	REAL(wp), POINTER :: flagu, flagv ! - -
86	REAL(wp), POINTER, DIMENSION(:,:) :: pmask ! pointer to 2D mask fields
87	REAL(wp) :: zefl, zwfl, znfl, zsfl ! local scalars
88	INTEGER, DIMENSION (2) :: kdimsz
89	INTEGER, DIMENSION(jpbgrd,jp_bdy) :: nblendta ! Length of index arrays
90	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbidta, nbjdta ! Index arrays: i and j indices of bdy dta
91	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbrdta ! Discrete distance from rim points
92	CHARACTER(LEN=1),DIMENSION(jpbgrd) :: cgrid
93	INTEGER :: com_east, com_west, com_south, com_north ! Flags for boundaries sending
94	INTEGER :: com_east_b, com_west_b, com_south_b, com_north_b ! Flags for boundaries receiving
95	INTEGER :: iw_b(4), ie_b(4), is_b(4), in_b(4) ! Arrays for neighbours coordinates
96	REAL(wp), POINTER, DIMENSION(:,:) :: zfmask ! temporary fmask array excluding coastal boundary condition (shlat)
97
98	!!
99	NAMELIST/nambdy/ nb_bdy, ln_coords_file, cn_coords_file, &
100	& ln_mask_file, cn_mask_file, cn_dyn2d, nn_dyn2d_dta, &
101	& cn_dyn3d, nn_dyn3d_dta, cn_tra, nn_tra_dta, &
102	& ln_tra_dmp, ln_dyn3d_dmp, rn_time_dmp, rn_time_dmp_out, &
103	& cn_ice_lim, nn_ice_lim_dta, &
104	& rn_ice_tem, rn_ice_sal, rn_ice_age, &
105	& ln_vol, nn_volctl, nn_rimwidth
106	!!
107	NAMELIST/nambdy_index/ ctypebdy, nbdyind, nbdybeg, nbdyend
108	INTEGER :: ios ! Local integer output status for namelist read
109	!!----------------------------------------------------------------------
110
111	IF( nn_timing == 1 ) CALL timing_start('bdy_init')
112
113	IF(lwp) WRITE(numout,*)
114	IF(lwp) WRITE(numout,*) 'bdy_init : initialization of open boundaries'
115	IF(lwp) WRITE(numout,*) '~~~~~~~~'
116	!
117
118	IF( jperio /= 0 ) CALL ctl_stop( 'Cyclic or symmetric,', &
119	& ' and general open boundary condition are not compatible' )
120
121	cgrid= (/'t','u','v'/)
122
123	! ------------------------
124	! Read namelist parameters
125	! ------------------------
126	IF(lwm) THEN
127	REWIND( numnam_ref ) ! Namelist nambdy in reference namelist :Unstructured open boundaries
128	READ ( numnam_ref, nambdy, IOSTAT = ios, ERR = 901)
129	901 CONTINUE
130	ENDIF
131	call mpp_bcast(ios)
132	IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in reference namelist', lwp )
133	IF(lwm) THEN
134	REWIND( numnam_cfg ) ! Namelist nambdy in configuration namelist :Unstructured open boundaries
135	READ ( numnam_cfg, nambdy, IOSTAT = ios, ERR = 902 )
136	902 CONTINUE
137	ENDIF
138	call mpp_bcast(ios)
139	IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in configuration namelist', lwp )
140
141	IF(lwm) WRITE ( numond, nambdy )
142
143	CALL bdy_namelist()
144
145	! -----------------------------------------
146	! Check and write out namelist parameters
147	! -----------------------------------------
148	! ! control prints
149	IF(lwp) WRITE(numout,*) ' nambdy'
150
151	IF( nb_bdy .eq. 0 ) THEN
152	IF(lwp) WRITE(numout,*) 'nb_bdy = 0, NO OPEN BOUNDARIES APPLIED.'
153	ELSE
154	IF(lwp) WRITE(numout,*) 'Number of open boundary sets : ',nb_bdy
155	ENDIF
156
157	DO ib_bdy = 1,nb_bdy
158	IF(lwp) WRITE(numout,*) ' '
159	IF(lwp) WRITE(numout,*) '------ Open boundary data set ',ib_bdy,'------'
160
161	IF( ln_coords_file(ib_bdy) ) THEN
162	IF(lwp) WRITE(numout,*) 'Boundary definition read from file '//TRIM(cn_coords_file(ib_bdy))
163	ELSE
164	IF(lwp) WRITE(numout,*) 'Boundary defined in namelist.'
165	ENDIF
166	IF(lwp) WRITE(numout,*)
167
168	IF(lwp) WRITE(numout,*) 'Boundary conditions for barotropic solution: '
169	SELECT CASE( cn_dyn2d(ib_bdy) )
170	CASE('none')
171	IF(lwp) WRITE(numout,*) ' no open boundary condition'
172	dta_bdy(ib_bdy)%ll_ssh = .false.
173	dta_bdy(ib_bdy)%ll_u2d = .false.
174	dta_bdy(ib_bdy)%ll_v2d = .false.
175	CASE('frs')
176	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
177	dta_bdy(ib_bdy)%ll_ssh = .false.
178	dta_bdy(ib_bdy)%ll_u2d = .true.
179	dta_bdy(ib_bdy)%ll_v2d = .true.
180	CASE('flather')
181	IF(lwp) WRITE(numout,*) ' Flather radiation condition'
182	dta_bdy(ib_bdy)%ll_ssh = .true.
183	dta_bdy(ib_bdy)%ll_u2d = .true.
184	dta_bdy(ib_bdy)%ll_v2d = .true.
185	CASE('orlanski')
186	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
187	dta_bdy(ib_bdy)%ll_ssh = .false.
188	dta_bdy(ib_bdy)%ll_u2d = .true.
189	dta_bdy(ib_bdy)%ll_v2d = .true.
190	CASE('orlanski_npo')
191	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
192	dta_bdy(ib_bdy)%ll_ssh = .false.
193	dta_bdy(ib_bdy)%ll_u2d = .true.
194	dta_bdy(ib_bdy)%ll_v2d = .true.
195	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn2d' )
196	END SELECT
197	IF( cn_dyn2d(ib_bdy) /= 'none' ) THEN
198	SELECT CASE( nn_dyn2d_dta(ib_bdy) ) !
199	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
200	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
201	CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' tidal harmonic forcing taken from file'
202	CASE( 3 ) ; IF(lwp) WRITE(numout,*) ' boundary data AND tidal harmonic forcing taken from files'
203	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn2d_dta must be between 0 and 3' )
204	END SELECT
205	IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(.NOT.lk_tide)) THEN
206	CALL ctl_stop( 'You must activate key_tide to add tidal forcing at open boundaries' )
207	ENDIF
208	ENDIF
209	IF(lwp) WRITE(numout,*)
210
211	IF(lwp) WRITE(numout,*) 'Boundary conditions for baroclinic velocities: '
212	SELECT CASE( cn_dyn3d(ib_bdy) )
213	CASE('none')
214	IF(lwp) WRITE(numout,*) ' no open boundary condition'
215	dta_bdy(ib_bdy)%ll_u3d = .false.
216	dta_bdy(ib_bdy)%ll_v3d = .false.
217	CASE('frs')
218	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
219	dta_bdy(ib_bdy)%ll_u3d = .true.
220	dta_bdy(ib_bdy)%ll_v3d = .true.
221	CASE('specified')
222	IF(lwp) WRITE(numout,*) ' Specified value'
223	dta_bdy(ib_bdy)%ll_u3d = .true.
224	dta_bdy(ib_bdy)%ll_v3d = .true.
225	CASE('zero')
226	IF(lwp) WRITE(numout,*) ' Zero baroclinic velocities (runoff case)'
227	dta_bdy(ib_bdy)%ll_u3d = .false.
228	dta_bdy(ib_bdy)%ll_v3d = .false.
229	CASE('orlanski')
230	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
231	dta_bdy(ib_bdy)%ll_u3d = .true.
232	dta_bdy(ib_bdy)%ll_v3d = .true.
233	CASE('orlanski_npo')
234	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
235	dta_bdy(ib_bdy)%ll_u3d = .true.
236	dta_bdy(ib_bdy)%ll_v3d = .true.
237	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn3d' )
238	END SELECT
239	IF( cn_dyn3d(ib_bdy) /= 'none' ) THEN
240	SELECT CASE( nn_dyn3d_dta(ib_bdy) ) !
241	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
242	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
243	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn3d_dta must be 0 or 1' )
244	END SELECT
245	ENDIF
246
247	IF ( ln_dyn3d_dmp(ib_bdy) ) THEN
248	IF ( cn_dyn3d(ib_bdy) == 'none' ) THEN
249	IF(lwp) WRITE(numout,*) 'No open boundary condition for baroclinic velocities: ln_dyn3d_dmp is set to .false.'
250	ln_dyn3d_dmp(ib_bdy)=.false.
251	ELSEIF ( cn_dyn3d(ib_bdy) == 'frs' ) THEN
252	CALL ctl_stop( 'Use FRS OR relaxation' )
253	ELSE
254	IF(lwp) WRITE(numout,*) ' + baroclinic velocities relaxation zone'
255	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
256	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
257	dta_bdy(ib_bdy)%ll_u3d = .true.
258	dta_bdy(ib_bdy)%ll_v3d = .true.
259	ENDIF
260	ELSE
261	IF(lwp) WRITE(numout,*) ' NO relaxation on baroclinic velocities'
262	ENDIF
263	IF(lwp) WRITE(numout,*)
264
265	IF(lwp) WRITE(numout,*) 'Boundary conditions for temperature and salinity: '
266	SELECT CASE( cn_tra(ib_bdy) )
267	CASE('none')
268	IF(lwp) WRITE(numout,*) ' no open boundary condition'
269	dta_bdy(ib_bdy)%ll_tem = .false.
270	dta_bdy(ib_bdy)%ll_sal = .false.
271	CASE('frs')
272	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
273	dta_bdy(ib_bdy)%ll_tem = .true.
274	dta_bdy(ib_bdy)%ll_sal = .true.
275	CASE('specified')
276	IF(lwp) WRITE(numout,*) ' Specified value'
277	dta_bdy(ib_bdy)%ll_tem = .true.
278	dta_bdy(ib_bdy)%ll_sal = .true.
279	CASE('neumann')
280	IF(lwp) WRITE(numout,*) ' Neumann conditions'
281	dta_bdy(ib_bdy)%ll_tem = .false.
282	dta_bdy(ib_bdy)%ll_sal = .false.
283	CASE('runoff')
284	IF(lwp) WRITE(numout,*) ' Runoff conditions : Neumann for T and specified to 0.1 for salinity'
285	dta_bdy(ib_bdy)%ll_tem = .false.
286	dta_bdy(ib_bdy)%ll_sal = .false.
287	CASE('orlanski')
288	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
289	dta_bdy(ib_bdy)%ll_tem = .true.
290	dta_bdy(ib_bdy)%ll_sal = .true.
291	CASE('orlanski_npo')
292	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
293	dta_bdy(ib_bdy)%ll_tem = .true.
294	dta_bdy(ib_bdy)%ll_sal = .true.
295	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_tra' )
296	END SELECT
297	IF( cn_tra(ib_bdy) /= 'none' ) THEN
298	SELECT CASE( nn_tra_dta(ib_bdy) ) !
299	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
300	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
301	CASE DEFAULT ; CALL ctl_stop( 'nn_tra_dta must be 0 or 1' )
302	END SELECT
303	ENDIF
304
305	IF ( ln_tra_dmp(ib_bdy) ) THEN
306	IF ( cn_tra(ib_bdy) == 'none' ) THEN
307	IF(lwp) WRITE(numout,*) 'No open boundary condition for tracers: ln_tra_dmp is set to .false.'
308	ln_tra_dmp(ib_bdy)=.false.
309	ELSEIF ( cn_tra(ib_bdy) == 'frs' ) THEN
310	CALL ctl_stop( 'Use FRS OR relaxation' )
311	ELSE
312	IF(lwp) WRITE(numout,*) ' + T/S relaxation zone'
313	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
314	IF(lwp) WRITE(numout,*) ' Outflow damping time scale: ',rn_time_dmp_out(ib_bdy),' days'
315	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
316	dta_bdy(ib_bdy)%ll_tem = .true.
317	dta_bdy(ib_bdy)%ll_sal = .true.
318	ENDIF
319	ELSE
320	IF(lwp) WRITE(numout,*) ' NO T/S relaxation'
321	ENDIF
322	IF(lwp) WRITE(numout,*)
323
324	#if defined key_lim2
325	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
326	SELECT CASE( cn_ice_lim(ib_bdy) )
327	CASE('none')
328	IF(lwp) WRITE(numout,*) ' no open boundary condition'
329	dta_bdy(ib_bdy)%ll_frld = .false.
330	dta_bdy(ib_bdy)%ll_hicif = .false.
331	dta_bdy(ib_bdy)%ll_hsnif = .false.
332	CASE('frs')
333	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
334	dta_bdy(ib_bdy)%ll_frld = .true.
335	dta_bdy(ib_bdy)%ll_hicif = .true.
336	dta_bdy(ib_bdy)%ll_hsnif = .true.
337	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
338	END SELECT
339	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
340	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
341	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
342	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
343	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
344	END SELECT
345	ENDIF
346	IF(lwp) WRITE(numout,*)
347	#elif defined key_lim3
348	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
349	SELECT CASE( cn_ice_lim(ib_bdy) )
350	CASE('none')
351	IF(lwp) WRITE(numout,*) ' no open boundary condition'
352	dta_bdy(ib_bdy)%ll_a_i = .false.
353	dta_bdy(ib_bdy)%ll_ht_i = .false.
354	dta_bdy(ib_bdy)%ll_ht_s = .false.
355	CASE('frs')
356	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
357	dta_bdy(ib_bdy)%ll_a_i = .true.
358	dta_bdy(ib_bdy)%ll_ht_i = .true.
359	dta_bdy(ib_bdy)%ll_ht_s = .true.
360	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
361	END SELECT
362	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
363	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
364	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
365	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
366	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
367	END SELECT
368	ENDIF
369	IF(lwp) WRITE(numout,*)
370	IF(lwp) WRITE(numout,*) ' tem of bdy sea-ice = ', rn_ice_tem(ib_bdy)
371	IF(lwp) WRITE(numout,*) ' sal of bdy sea-ice = ', rn_ice_sal(ib_bdy)
372	IF(lwp) WRITE(numout,*) ' age of bdy sea-ice = ', rn_ice_age(ib_bdy)
373	#endif
374
375	IF(lwp) WRITE(numout,*) ' Width of relaxation zone = ', nn_rimwidth(ib_bdy)
376	IF(lwp) WRITE(numout,*)
377
378	ENDDO
379
380	IF (nb_bdy .gt. 0) THEN
381	IF( ln_vol ) THEN ! check volume conservation (nn_volctl value)
382	IF(lwp) WRITE(numout,*) 'Volume correction applied at open boundaries'
383	IF(lwp) WRITE(numout,*)
384	SELECT CASE ( nn_volctl )
385	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' The total volume will be constant'
386	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' The total volume will vary according to the surface E-P flux'
387	CASE DEFAULT ; CALL ctl_stop( 'nn_volctl must be 0 or 1' )
388	END SELECT
389	IF(lwp) WRITE(numout,*)
390	ELSE
391	IF(lwp) WRITE(numout,*) 'No volume correction applied at open boundaries'
392	IF(lwp) WRITE(numout,*)
393	ENDIF
394	ENDIF
395
396	! -------------------------------------------------
397	! Initialise indices arrays for open boundaries
398	! -------------------------------------------------
399
400	! Work out global dimensions of boundary data
401	! ---------------------------------------------
402	IF(lwm) THEN
403	REWIND( numnam_cfg )
404	ENDIF
405
406	!!----------------------------------------------------------------------
407
408
409
410	nblendta(:,:) = 0
411	nbdysege = 0
412	nbdysegw = 0
413	nbdysegn = 0
414	nbdysegs = 0
415	icount = 0 ! count user defined segments
416	! Dimensions below are used to allocate arrays to read external data
417	jpbdtas = 1 ! Maximum size of boundary data (structured case)
418	jpbdtau = 1 ! Maximum size of boundary data (unstructured case)
419
420	DO ib_bdy = 1, nb_bdy
421
422	IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Work out size of global arrays from namelist parameters
423
424	icount = icount + 1
425	! No REWIND here because may need to read more than one nambdy_index namelist.
426	! Read only namelist_cfg to avoid unseccessfull overwrite
427	!! REWIND( numnam_ref ) ! Namelist nambdy_index in reference namelist : Open boundaries indexes
428	!! READ ( numnam_ref, namrun, IOSTAT = ios, ERR = 903)
429	!!903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in reference namelist', lwp )
430
431	!! REWIND( numnam_cfg ) ! Namelist nambdy_index in configuration namelist : Open boundaries indexes
432	IF(lwm) THEN
433	READ ( numnam_cfg, nambdy_index, IOSTAT = ios, ERR = 904 )
434	904 CONTINUE
435	ENDIF
436	call mpp_bcast(ios)
437	IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in configuration namelist', lwp )
438
439	IF(lwm) WRITE ( numond, nambdy_index )
440
441	CALL index_namelist()
442
443	SELECT CASE ( TRIM(ctypebdy) )
444	CASE( 'N' )
445	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
446	nbdyind = jpjglo - 2 ! set boundary to whole side of model domain.
447	nbdybeg = 2
448	nbdyend = jpiglo - 1
449	ENDIF
450	nbdysegn = nbdysegn + 1
451	npckgn(nbdysegn) = ib_bdy ! Save bdy package number
452	jpjnob(nbdysegn) = nbdyind
453	jpindt(nbdysegn) = nbdybeg
454	jpinft(nbdysegn) = nbdyend
455	!
456	CASE( 'S' )
457	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
458	nbdyind = 2 ! set boundary to whole side of model domain.
459	nbdybeg = 2
460	nbdyend = jpiglo - 1
461	ENDIF
462	nbdysegs = nbdysegs + 1
463	npckgs(nbdysegs) = ib_bdy ! Save bdy package number
464	jpjsob(nbdysegs) = nbdyind
465	jpisdt(nbdysegs) = nbdybeg
466	jpisft(nbdysegs) = nbdyend
467	!
468	CASE( 'E' )
469	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
470	nbdyind = jpiglo - 2 ! set boundary to whole side of model domain.
471	nbdybeg = 2
472	nbdyend = jpjglo - 1
473	ENDIF
474	nbdysege = nbdysege + 1
475	npckge(nbdysege) = ib_bdy ! Save bdy package number
476	jpieob(nbdysege) = nbdyind
477	jpjedt(nbdysege) = nbdybeg
478	jpjeft(nbdysege) = nbdyend
479	!
480	CASE( 'W' )
481	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
482	nbdyind = 2 ! set boundary to whole side of model domain.
483	nbdybeg = 2
484	nbdyend = jpjglo - 1
485	ENDIF
486	nbdysegw = nbdysegw + 1
487	npckgw(nbdysegw) = ib_bdy ! Save bdy package number
488	jpiwob(nbdysegw) = nbdyind
489	jpjwdt(nbdysegw) = nbdybeg
490	jpjwft(nbdysegw) = nbdyend
491	!
492	CASE DEFAULT ; CALL ctl_stop( 'ctypebdy must be N, S, E or W' )
493	END SELECT
494
495	! For simplicity we assume that in case of straight bdy, arrays have the same length
496	! (even if it is true that last tangential velocity points
497	! are useless). This simplifies a little bit boundary data format (and agrees with format
498	! used so far in obc package)
499
500	nblendta(1:jpbgrd,ib_bdy) = (nbdyend - nbdybeg + 1) * nn_rimwidth(ib_bdy)
501	jpbdtas = MAX(jpbdtas, (nbdyend - nbdybeg + 1))
502	IF (lwp.and.(nn_rimwidth(ib_bdy)>nrimmax)) &
503	& CALL ctl_stop( 'rimwidth must be lower than nrimmax' )
504
505	ELSE ! Read size of arrays in boundary coordinates file.
506	CALL iom_open( cn_coords_file(ib_bdy), inum )
507	DO igrd = 1, jpbgrd
508	id_dummy = iom_varid( inum, 'nbi'//cgrid(igrd), kdimsz=kdimsz )
509	!clem nblendta(igrd,ib_bdy) = kdimsz(1)
510	!clem jpbdtau = MAX(jpbdtau, kdimsz(1))
511	nblendta(igrd,ib_bdy) = MAXVAL(kdimsz)
512	jpbdtau = MAX(jpbdtau, MAXVAL(kdimsz))
513	ENDDO
514	CALL iom_close( inum )
515
516	ENDIF
517
518	ENDDO ! ib_bdy
519
520	IF (nb_bdy>0) THEN
521	jpbdta = MAXVAL(nblendta(1:jpbgrd,1:nb_bdy))
522
523	! Allocate arrays
524	!---------------
525	ALLOCATE( nbidta(jpbdta, jpbgrd, nb_bdy), nbjdta(jpbdta, jpbgrd, nb_bdy), &
526	& nbrdta(jpbdta, jpbgrd, nb_bdy) )
527
528	ALLOCATE( dta_global(jpbdtau, 1, jpk) )
529	IF ( icount>0 ) ALLOCATE( dta_global2(jpbdtas, nrimmax, jpk) )
530	!
531	ENDIF
532
533	! Now look for crossings in user (namelist) defined open boundary segments:
534	!--------------------------------------------------------------------------
535	IF ( icount>0 ) CALL bdy_ctl_seg
536
537	! Calculate global boundary index arrays or read in from file
538	!------------------------------------------------------------
539	! 1. Read global index arrays from boundary coordinates file.
540	DO ib_bdy = 1, nb_bdy
541
542	IF( ln_coords_file(ib_bdy) ) THEN
543
544	CALL iom_open( cn_coords_file(ib_bdy), inum )
545	DO igrd = 1, jpbgrd
546	CALL iom_get( inum, jpdom_unknown, 'nbi'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
547	DO ii = 1,nblendta(igrd,ib_bdy)
548	nbidta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
549	END DO
550	CALL iom_get( inum, jpdom_unknown, 'nbj'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
551	DO ii = 1,nblendta(igrd,ib_bdy)
552	nbjdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
553	END DO
554	CALL iom_get( inum, jpdom_unknown, 'nbr'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
555	DO ii = 1,nblendta(igrd,ib_bdy)
556	nbrdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
557	END DO
558
559	ibr_max = MAXVAL( nbrdta(:,igrd,ib_bdy) )
560	IF(lwp) WRITE(numout,*)
561	IF(lwp) WRITE(numout,*) ' Maximum rimwidth in file is ', ibr_max
562	IF(lwp) WRITE(numout,*) ' nn_rimwidth from namelist is ', nn_rimwidth(ib_bdy)
563	IF (ibr_max < nn_rimwidth(ib_bdy)) &
564	CALL ctl_stop( 'nn_rimwidth is larger than maximum rimwidth in file',cn_coords_file(ib_bdy) )
565	END DO
566	CALL iom_close( inum )
567
568	ENDIF
569
570	ENDDO
571
572	! 2. Now fill indices corresponding to straight open boundary arrays:
573	! East
574	!-----
575	DO iseg = 1, nbdysege
576	ib_bdy = npckge(iseg)
577	!
578	! ------------ T points -------------
579	igrd=1
580	icount=0
581	DO ir = 1, nn_rimwidth(ib_bdy)
582	DO ij = jpjedt(iseg), jpjeft(iseg)
583	icount = icount + 1
584	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
585	nbjdta(icount, igrd, ib_bdy) = ij
586	nbrdta(icount, igrd, ib_bdy) = ir
587	ENDDO
588	ENDDO
589	!
590	! ------------ U points -------------
591	igrd=2
592	icount=0
593	DO ir = 1, nn_rimwidth(ib_bdy)
594	DO ij = jpjedt(iseg), jpjeft(iseg)
595	icount = icount + 1
596	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 1 - ir
597	nbjdta(icount, igrd, ib_bdy) = ij
598	nbrdta(icount, igrd, ib_bdy) = ir
599	ENDDO
600	ENDDO
601	!
602	! ------------ V points -------------
603	igrd=3
604	icount=0
605	DO ir = 1, nn_rimwidth(ib_bdy)
606	! DO ij = jpjedt(iseg), jpjeft(iseg) - 1
607	DO ij = jpjedt(iseg), jpjeft(iseg)
608	icount = icount + 1
609	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
610	nbjdta(icount, igrd, ib_bdy) = ij
611	nbrdta(icount, igrd, ib_bdy) = ir
612	ENDDO
613	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
614	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
615	ENDDO
616	ENDDO
617	!
618	! West
619	!-----
620	DO iseg = 1, nbdysegw
621	ib_bdy = npckgw(iseg)
622	!
623	! ------------ T points -------------
624	igrd=1
625	icount=0
626	DO ir = 1, nn_rimwidth(ib_bdy)
627	DO ij = jpjwdt(iseg), jpjwft(iseg)
628	icount = icount + 1
629	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
630	nbjdta(icount, igrd, ib_bdy) = ij
631	nbrdta(icount, igrd, ib_bdy) = ir
632	ENDDO
633	ENDDO
634	!
635	! ------------ U points -------------
636	igrd=2
637	icount=0
638	DO ir = 1, nn_rimwidth(ib_bdy)
639	DO ij = jpjwdt(iseg), jpjwft(iseg)
640	icount = icount + 1
641	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
642	nbjdta(icount, igrd, ib_bdy) = ij
643	nbrdta(icount, igrd, ib_bdy) = ir
644	ENDDO
645	ENDDO
646	!
647	! ------------ V points -------------
648	igrd=3
649	icount=0
650	DO ir = 1, nn_rimwidth(ib_bdy)
651	! DO ij = jpjwdt(iseg), jpjwft(iseg) - 1
652	DO ij = jpjwdt(iseg), jpjwft(iseg)
653	icount = icount + 1
654	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
655	nbjdta(icount, igrd, ib_bdy) = ij
656	nbrdta(icount, igrd, ib_bdy) = ir
657	ENDDO
658	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
659	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
660	ENDDO
661	ENDDO
662	!
663	! North
664	!-----
665	DO iseg = 1, nbdysegn
666	ib_bdy = npckgn(iseg)
667	!
668	! ------------ T points -------------
669	igrd=1
670	icount=0
671	DO ir = 1, nn_rimwidth(ib_bdy)
672	DO ii = jpindt(iseg), jpinft(iseg)
673	icount = icount + 1
674	nbidta(icount, igrd, ib_bdy) = ii
675	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
676	nbrdta(icount, igrd, ib_bdy) = ir
677	ENDDO
678	ENDDO
679	!
680	! ------------ U points -------------
681	igrd=2
682	icount=0
683	DO ir = 1, nn_rimwidth(ib_bdy)
684	! DO ii = jpindt(iseg), jpinft(iseg) - 1
685	DO ii = jpindt(iseg), jpinft(iseg)
686	icount = icount + 1
687	nbidta(icount, igrd, ib_bdy) = ii
688	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
689	nbrdta(icount, igrd, ib_bdy) = ir
690	ENDDO
691	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
692	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
693	ENDDO
694	!
695	! ------------ V points -------------
696	igrd=3
697	icount=0
698	DO ir = 1, nn_rimwidth(ib_bdy)
699	DO ii = jpindt(iseg), jpinft(iseg)
700	icount = icount + 1
701	nbidta(icount, igrd, ib_bdy) = ii
702	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 1 - ir
703	nbrdta(icount, igrd, ib_bdy) = ir
704	ENDDO
705	ENDDO
706	ENDDO
707	!
708	! South
709	!-----
710	DO iseg = 1, nbdysegs
711	ib_bdy = npckgs(iseg)
712	!
713	! ------------ T points -------------
714	igrd=1
715	icount=0
716	DO ir = 1, nn_rimwidth(ib_bdy)
717	DO ii = jpisdt(iseg), jpisft(iseg)
718	icount = icount + 1
719	nbidta(icount, igrd, ib_bdy) = ii
720	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
721	nbrdta(icount, igrd, ib_bdy) = ir
722	ENDDO
723	ENDDO
724	!
725	! ------------ U points -------------
726	igrd=2
727	icount=0
728	DO ir = 1, nn_rimwidth(ib_bdy)
729	! DO ii = jpisdt(iseg), jpisft(iseg) - 1
730	DO ii = jpisdt(iseg), jpisft(iseg)
731	icount = icount + 1
732	nbidta(icount, igrd, ib_bdy) = ii
733	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
734	nbrdta(icount, igrd, ib_bdy) = ir
735	ENDDO
736	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
737	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
738	ENDDO
739	!
740	! ------------ V points -------------
741	igrd=3
742	icount=0
743	DO ir = 1, nn_rimwidth(ib_bdy)
744	DO ii = jpisdt(iseg), jpisft(iseg)
745	icount = icount + 1
746	nbidta(icount, igrd, ib_bdy) = ii
747	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
748	nbrdta(icount, igrd, ib_bdy) = ir
749	ENDDO
750	ENDDO
751	ENDDO
752
753	! Deal with duplicated points
754	!-----------------------------
755	! We assign negative indices to duplicated points (to remove them from bdy points to be updated)
756	! if their distance to the bdy is greater than the other
757	! If their distance are the same, just keep only one to avoid updating a point twice
758	DO igrd = 1, jpbgrd
759	DO ib_bdy1 = 1, nb_bdy
760	DO ib_bdy2 = 1, nb_bdy
761	IF (ib_bdy1/=ib_bdy2) THEN
762	DO ib1 = 1, nblendta(igrd,ib_bdy1)
763	DO ib2 = 1, nblendta(igrd,ib_bdy2)
764	IF ((nbidta(ib1, igrd, ib_bdy1)==nbidta(ib2, igrd, ib_bdy2)).AND. &
765	& (nbjdta(ib1, igrd, ib_bdy1)==nbjdta(ib2, igrd, ib_bdy2))) THEN
766	! IF ((lwp).AND.(igrd==1)) WRITE(numout,*) ' found coincident point ji, jj:', &
767	! & nbidta(ib1, igrd, ib_bdy1), &
768	! & nbjdta(ib2, igrd, ib_bdy2)
769	! keep only points with the lowest distance to boundary:
770	IF (nbrdta(ib1, igrd, ib_bdy1)<nbrdta(ib2, igrd, ib_bdy2)) THEN
771	nbidta(ib2, igrd, ib_bdy2) =-ib_bdy2
772	nbjdta(ib2, igrd, ib_bdy2) =-ib_bdy2
773	ELSEIF (nbrdta(ib1, igrd, ib_bdy1)>nbrdta(ib2, igrd, ib_bdy2)) THEN
774	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
775	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
776	! Arbitrary choice if distances are the same:
777	ELSE
778	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
779	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
780	ENDIF
781	END IF
782	END DO
783	END DO
784	ENDIF
785	END DO
786	END DO
787	END DO
788
789	! Work out dimensions of boundary data on each processor
790	! ------------------------------------------------------
791
792	! Rather assume that boundary data indices are given on global domain
793	! TO BE DISCUSSED ?
794	! iw = mig(1) + 1 ! if monotasking and no zoom, iw=2
795	! ie = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1
796	! is = mjg(1) + 1 ! if monotasking and no zoom, is=2
797	! in = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1
798	iwe = mig(1) - jpizoom + 2 ! if monotasking and no zoom, iw=2
799	ies = mig(1) + nlci - jpizoom - 1 ! if monotasking and no zoom, ie=jpim1
800	iso = mjg(1) - jpjzoom + 2 ! if monotasking and no zoom, is=2
801	ino = mjg(1) + nlcj - jpjzoom - 1 ! if monotasking and no zoom, in=jpjm1
802
803	ALLOCATE( nbondi_bdy(nb_bdy))
804	ALLOCATE( nbondj_bdy(nb_bdy))
805	nbondi_bdy(:)=2
806	nbondj_bdy(:)=2
807	ALLOCATE( nbondi_bdy_b(nb_bdy))
808	ALLOCATE( nbondj_bdy_b(nb_bdy))
809	nbondi_bdy_b(:)=2
810	nbondj_bdy_b(:)=2
811
812	! Work out dimensions of boundary data on each neighbour process
813	IF(nbondi .eq. 0) THEN
814	iw_b(1) = jpizoom + nimppt(nowe+1)
815	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
816	is_b(1) = jpjzoom + njmppt(nowe+1)
817	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
818
819	iw_b(2) = jpizoom + nimppt(noea+1)
820	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
821	is_b(2) = jpjzoom + njmppt(noea+1)
822	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
823	ELSEIF(nbondi .eq. 1) THEN
824	iw_b(1) = jpizoom + nimppt(nowe+1)
825	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
826	is_b(1) = jpjzoom + njmppt(nowe+1)
827	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
828	ELSEIF(nbondi .eq. -1) THEN
829	iw_b(2) = jpizoom + nimppt(noea+1)
830	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
831	is_b(2) = jpjzoom + njmppt(noea+1)
832	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
833	ENDIF
834
835	IF(nbondj .eq. 0) THEN
836	iw_b(3) = jpizoom + nimppt(noso+1)
837	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
838	is_b(3) = jpjzoom + njmppt(noso+1)
839	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
840
841	iw_b(4) = jpizoom + nimppt(nono+1)
842	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
843	is_b(4) = jpjzoom + njmppt(nono+1)
844	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
845	ELSEIF(nbondj .eq. 1) THEN
846	iw_b(3) = jpizoom + nimppt(noso+1)
847	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
848	is_b(3) = jpjzoom + njmppt(noso+1)
849	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
850	ELSEIF(nbondj .eq. -1) THEN
851	iw_b(4) = jpizoom + nimppt(nono+1)
852	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
853	is_b(4) = jpjzoom + njmppt(nono+1)
854	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
855	ENDIF
856
857	DO ib_bdy = 1, nb_bdy
858	DO igrd = 1, jpbgrd
859	icount = 0
860	icountr = 0
861	idx_bdy(ib_bdy)%nblen(igrd) = 0
862	idx_bdy(ib_bdy)%nblenrim(igrd) = 0
863	DO ib = 1, nblendta(igrd,ib_bdy)
864	! check that data is in correct order in file
865	ibm1 = MAX(1,ib-1)
866	IF(lwp) THEN ! Since all procs read global data only need to do this check on one proc...
867	IF( nbrdta(ib,igrd,ib_bdy) < nbrdta(ibm1,igrd,ib_bdy) ) THEN
868	CALL ctl_stop('bdy_init : ERROR : boundary data in file must be defined ', &
869	& ' in order of distance from edge nbr A utility for re-ordering ', &
870	& ' boundary coordinates and data files exists in the TOOLS/OBC directory')
871	ENDIF
872	ENDIF
873	! check if point is in local domain
874	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
875	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino ) THEN
876	!
877	icount = icount + 1
878	!
879	IF( nbrdta(ib,igrd,ib_bdy) == 1 ) icountr = icountr+1
880	ENDIF
881	ENDDO
882	idx_bdy(ib_bdy)%nblenrim(igrd) = icountr !: length of rim boundary data on each proc
883	idx_bdy(ib_bdy)%nblen (igrd) = icount !: length of boundary data on each proc
884	ENDDO ! igrd
885
886	! Allocate index arrays for this boundary set
887	!--------------------------------------------
888	ilen1 = MAXVAL(idx_bdy(ib_bdy)%nblen(:))
889	ALLOCATE( idx_bdy(ib_bdy)%nbi(ilen1,jpbgrd) )
890	ALLOCATE( idx_bdy(ib_bdy)%nbj(ilen1,jpbgrd) )
891	ALLOCATE( idx_bdy(ib_bdy)%nbr(ilen1,jpbgrd) )
892	ALLOCATE( idx_bdy(ib_bdy)%nbd(ilen1,jpbgrd) )
893	ALLOCATE( idx_bdy(ib_bdy)%nbdout(ilen1,jpbgrd) )
894	ALLOCATE( idx_bdy(ib_bdy)%nbmap(ilen1,jpbgrd) )
895	ALLOCATE( idx_bdy(ib_bdy)%nbw(ilen1,jpbgrd) )
896	ALLOCATE( idx_bdy(ib_bdy)%flagu(ilen1,jpbgrd) )
897	ALLOCATE( idx_bdy(ib_bdy)%flagv(ilen1,jpbgrd) )
898
899	! Dispatch mapping indices and discrete distances on each processor
900	! -----------------------------------------------------------------
901
902	com_east = 0
903	com_west = 0
904	com_south = 0
905	com_north = 0
906
907	com_east_b = 0
908	com_west_b = 0
909	com_south_b = 0
910	com_north_b = 0
911
912	DO igrd = 1, jpbgrd
913	icount = 0
914	! Loop on rimwidth to ensure outermost points come first in the local arrays.
915	DO ir=1, nn_rimwidth(ib_bdy)
916	DO ib = 1, nblendta(igrd,ib_bdy)
917	! check if point is in local domain and equals ir
918	IF( nbidta(ib,igrd,ib_bdy) >= iwe .AND. nbidta(ib,igrd,ib_bdy) <= ies .AND. &
919	& nbjdta(ib,igrd,ib_bdy) >= iso .AND. nbjdta(ib,igrd,ib_bdy) <= ino .AND. &
920	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
921	!
922	icount = icount + 1
923
924	! Rather assume that boundary data indices are given on global domain
925	! TO BE DISCUSSED ?
926	! idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+1
927	! idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+1
928	idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+jpizoom
929	idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+jpjzoom
930	! check if point has to be sent
931	ii = idx_bdy(ib_bdy)%nbi(icount,igrd)
932	ij = idx_bdy(ib_bdy)%nbj(icount,igrd)
933	if((com_east .ne. 1) .and. (ii .eq. (nlci-1)) .and. (nbondi .le. 0)) then
934	com_east = 1
935	elseif((com_west .ne. 1) .and. (ii .eq. 2) .and. (nbondi .ge. 0) .and. (nbondi .ne. 2)) then
936	com_west = 1
937	endif
938	if((com_south .ne. 1) .and. (ij .eq. 2) .and. (nbondj .ge. 0) .and. (nbondj .ne. 2)) then
939	com_south = 1
940	elseif((com_north .ne. 1) .and. (ij .eq. (nlcj-1)) .and. (nbondj .le. 0)) then
941	com_north = 1
942	endif
943	idx_bdy(ib_bdy)%nbr(icount,igrd) = nbrdta(ib,igrd,ib_bdy)
944	idx_bdy(ib_bdy)%nbmap(icount,igrd) = ib
945	ENDIF
946	! check if point has to be received from a neighbour
947	IF(nbondi .eq. 0) THEN
948	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
949	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
950	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
951	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
952	if((com_west_b .ne. 1) .and. (ii .eq. (nlcit(nowe+1)-1))) then
953	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
954	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
955	com_south = 1
956	elseif((ij .eq. nlcjt(nowe+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
957	com_north = 1
958	endif
959	com_west_b = 1
960	endif
961	ENDIF
962	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
963	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
964	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
965	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
966	if((com_east_b .ne. 1) .and. (ii .eq. 2)) then
967	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
968	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
969	com_south = 1
970	elseif((ij .eq. nlcjt(noea+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
971	com_north = 1
972	endif
973	com_east_b = 1
974	endif
975	ENDIF
976	ELSEIF(nbondi .eq. 1) THEN
977	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(1) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(1) .AND. &
978	& nbjdta(ib,igrd,ib_bdy) >= is_b(1) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(1) .AND. &
979	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
980	ii = nbidta(ib,igrd,ib_bdy)- iw_b(1)+2
981	if((com_west_b .ne. 1) .and. (ii .eq. (nlcit(nowe+1)-1))) then
982	ij = nbjdta(ib,igrd,ib_bdy) - is_b(1)+2
983	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
984	com_south = 1
985	elseif((ij .eq. nlcjt(nowe+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
986	com_north = 1
987	endif
988	com_west_b = 1
989	endif
990	ENDIF
991	ELSEIF(nbondi .eq. -1) THEN
992	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(2) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(2) .AND. &
993	& nbjdta(ib,igrd,ib_bdy) >= is_b(2) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(2) .AND. &
994	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
995	ii = nbidta(ib,igrd,ib_bdy)- iw_b(2)+2
996	if((com_east_b .ne. 1) .and. (ii .eq. 2)) then
997	ij = nbjdta(ib,igrd,ib_bdy) - is_b(2)+2
998	if((ij .eq. 2) .and. (nbondj .eq. 0 .or. nbondj .eq. 1)) then
999	com_south = 1
1000	elseif((ij .eq. nlcjt(noea+1)-1) .and. (nbondj .eq. 0 .or. nbondj .eq. -1)) then
1001	com_north = 1
1002	endif
1003	com_east_b = 1
1004	endif
1005	ENDIF
1006	ENDIF
1007	IF(nbondj .eq. 0) THEN
1008	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
1009	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
1010	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1011	com_north_b = 1
1012	ENDIF
1013	IF(com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 &
1014	&.OR. nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
1015	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1016	com_south_b = 1
1017	ENDIF
1018	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1019	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1020	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1021	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1022	if((com_south_b .ne. 1) .and. (ij .eq. (nlcjt(noso+1)-1))) then
1023	com_south_b = 1
1024	endif
1025	ENDIF
1026	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1027	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1028	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1029	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1030	if((com_north_b .ne. 1) .and. (ij .eq. 2)) then
1031	com_north_b = 1
1032	endif
1033	ENDIF
1034	ELSEIF(nbondj .eq. 1) THEN
1035	IF( com_south_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(3)-1 .OR. &
1036	& nbidta(ib,igrd,ib_bdy) == ie_b(3)+1) .AND. &
1037	& nbjdta(ib,igrd,ib_bdy) == in_b(3) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1038	com_south_b = 1
1039	ENDIF
1040	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(3) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(3) .AND. &
1041	& nbjdta(ib,igrd,ib_bdy) >= is_b(3) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(3) .AND. &
1042	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1043	ij = nbjdta(ib,igrd,ib_bdy)- is_b(3)+2
1044	if((com_south_b .ne. 1) .and. (ij .eq. (nlcjt(noso+1)-1))) then
1045	com_south_b = 1
1046	endif
1047	ENDIF
1048	ELSEIF(nbondj .eq. -1) THEN
1049	IF(com_north_b .ne. 1 .AND. (nbidta(ib,igrd,ib_bdy) == iw_b(4)-1 &
1050	& .OR. nbidta(ib,igrd,ib_bdy) == ie_b(4)+1) .AND. &
1051	& nbjdta(ib,igrd,ib_bdy) == is_b(4) .AND. nbrdta(ib,igrd,ib_bdy) == ir) THEN
1052	com_north_b = 1
1053	ENDIF
1054	IF( nbidta(ib,igrd,ib_bdy) >= iw_b(4) .AND. nbidta(ib,igrd,ib_bdy) <= ie_b(4) .AND. &
1055	& nbjdta(ib,igrd,ib_bdy) >= is_b(4) .AND. nbjdta(ib,igrd,ib_bdy) <= in_b(4) .AND. &
1056	& nbrdta(ib,igrd,ib_bdy) == ir ) THEN
1057	ij = nbjdta(ib,igrd,ib_bdy)- is_b(4)+2
1058	if((com_north_b .ne. 1) .and. (ij .eq. 2)) then
1059	com_north_b = 1
1060	endif
1061	ENDIF
1062	ENDIF
1063	ENDDO
1064	ENDDO
1065	ENDDO
1066
1067	! definition of the i- and j- direction local boundaries arrays
1068	! used for sending the boudaries
1069	IF((com_east .eq. 1) .and. (com_west .eq. 1)) THEN
1070	nbondi_bdy(ib_bdy) = 0
1071	ELSEIF ((com_east .eq. 1) .and. (com_west .eq. 0)) THEN
1072	nbondi_bdy(ib_bdy) = -1
1073	ELSEIF ((com_east .eq. 0) .and. (com_west .eq. 1)) THEN
1074	nbondi_bdy(ib_bdy) = 1
1075	ENDIF
1076
1077	IF((com_north .eq. 1) .and. (com_south .eq. 1)) THEN
1078	nbondj_bdy(ib_bdy) = 0
1079	ELSEIF ((com_north .eq. 1) .and. (com_south .eq. 0)) THEN
1080	nbondj_bdy(ib_bdy) = -1
1081	ELSEIF ((com_north .eq. 0) .and. (com_south .eq. 1)) THEN
1082	nbondj_bdy(ib_bdy) = 1
1083	ENDIF
1084
1085	! definition of the i- and j- direction local boundaries arrays
1086	! used for receiving the boudaries
1087	IF((com_east_b .eq. 1) .and. (com_west_b .eq. 1)) THEN
1088	nbondi_bdy_b(ib_bdy) = 0
1089	ELSEIF ((com_east_b .eq. 1) .and. (com_west_b .eq. 0)) THEN
1090	nbondi_bdy_b(ib_bdy) = -1
1091	ELSEIF ((com_east_b .eq. 0) .and. (com_west_b .eq. 1)) THEN
1092	nbondi_bdy_b(ib_bdy) = 1
1093	ENDIF
1094
1095	IF((com_north_b .eq. 1) .and. (com_south_b .eq. 1)) THEN
1096	nbondj_bdy_b(ib_bdy) = 0
1097	ELSEIF ((com_north_b .eq. 1) .and. (com_south_b .eq. 0)) THEN
1098	nbondj_bdy_b(ib_bdy) = -1
1099	ELSEIF ((com_north_b .eq. 0) .and. (com_south_b .eq. 1)) THEN
1100	nbondj_bdy_b(ib_bdy) = 1
1101	ENDIF
1102
1103	! Compute rim weights for FRS scheme
1104	! ----------------------------------
1105	DO igrd = 1, jpbgrd
1106	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1107	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1108	idx_bdy(ib_bdy)%nbw(ib,igrd) = 1.- TANH( FLOAT( nbr - 1 ) *0.5 ) ! tanh formulation
1109	! idx_bdy(ib_bdy)%nbw(ib,igrd) = (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))**2. ! quadratic
1110	! idx_bdy(ib_bdy)%nbw(ib,igrd) = FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)) ! linear
1111	END DO
1112	END DO
1113
1114	! Compute damping coefficients
1115	! ----------------------------
1116	DO igrd = 1, jpbgrd
1117	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
1118	nbr => idx_bdy(ib_bdy)%nbr(ib,igrd)
1119	idx_bdy(ib_bdy)%nbd(ib,igrd) = 1. / ( rn_time_dmp(ib_bdy) * rday ) &
1120	& (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))*2. ! quadratic
1121	idx_bdy(ib_bdy)%nbdout(ib,igrd) = 1. / ( rn_time_dmp_out(ib_bdy) * rday ) &
1122	& (FLOAT(nn_rimwidth(ib_bdy)+1-nbr)/FLOAT(nn_rimwidth(ib_bdy)))*2. ! quadratic
1123	END DO
1124	END DO
1125
1126	ENDDO
1127
1128	! ------------------------------------------------------
1129	! Initialise masks and find normal/tangential directions
1130	! ------------------------------------------------------
1131
1132	! Read global 2D mask at T-points: bdytmask
1133	! -----------------------------------------
1134	! bdytmask = 1 on the computational domain AND on open boundaries
1135	! = 0 elsewhere
1136
1137	IF( ln_mask_file ) THEN
1138	CALL iom_open( cn_mask_file, inum )
1139	CALL iom_get ( inum, jpdom_data, 'bdy_msk', bdytmask(:,:) )
1140	CALL iom_close( inum )
1141
1142	! Derive mask on U and V grid from mask on T grid
1143	bdyumask(:,:) = 0.e0
1144	bdyvmask(:,:) = 0.e0
1145	DO ij=1, jpjm1
1146	DO ii=1, jpim1
1147	bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij )
1148	bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1)
1149	END DO
1150	END DO
1151	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1152
1153
1154	! Mask corrections
1155	! ----------------
1156	DO ik = 1, jpkm1
1157	DO ij = 1, jpj
1158	DO ii = 1, jpi
1159	tmask(ii,ij,ik) = tmask(ii,ij,ik) * bdytmask(ii,ij)
1160	umask(ii,ij,ik) = umask(ii,ij,ik) * bdyumask(ii,ij)
1161	vmask(ii,ij,ik) = vmask(ii,ij,ik) * bdyvmask(ii,ij)
1162	bmask(ii,ij) = bmask(ii,ij) * bdytmask(ii,ij)
1163	END DO
1164	END DO
1165	END DO
1166
1167	DO ik = 1, jpkm1
1168	DO ij = 2, jpjm1
1169	DO ii = 2, jpim1
1170	fmask(ii,ij,ik) = fmask(ii,ij,ik) * bdytmask(ii,ij ) * bdytmask(ii+1,ij ) &
1171	& * bdytmask(ii,ij+1) * bdytmask(ii+1,ij+1)
1172	END DO
1173	END DO
1174	END DO
1175
1176	tmask_i (:,:) = ssmask(:,:) * tmask_i(:,:)
1177
1178	ENDIF ! ln_mask_file=.TRUE.
1179
1180	bdytmask(:,:) = ssmask(:,:)
1181	IF( .not. ln_mask_file ) THEN
1182	! If .not. ln_mask_file then we need to derive mask on U and V grid
1183	! from mask on T grid here.
1184	bdyumask(:,:) = 0.e0
1185	bdyvmask(:,:) = 0.e0
1186	DO ij=1, jpjm1
1187	DO ii=1, jpim1
1188	bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij )
1189	bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1)
1190	END DO
1191	END DO
1192	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond.
1193	ENDIF
1194
1195	! bdy masks and bmask are now set to zero on boundary points:
1196	igrd = 1 ! In the free surface case, bmask is at T-points
1197	DO ib_bdy = 1, nb_bdy
1198	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1199	bmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1200	ENDDO
1201	ENDDO
1202	!
1203	igrd = 1
1204	DO ib_bdy = 1, nb_bdy
1205	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1206	bdytmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1207	ENDDO
1208	ENDDO
1209	!
1210	igrd = 2
1211	DO ib_bdy = 1, nb_bdy
1212	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1213	bdyumask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1214	ENDDO
1215	ENDDO
1216	!
1217	igrd = 3
1218	DO ib_bdy = 1, nb_bdy
1219	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1220	bdyvmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0
1221	ENDDO
1222	ENDDO
1223
1224	! For the flagu/flagv calculation below we require a version of fmask without
1225	! the land boundary condition (shlat) included:
1226	CALL wrk_alloc(jpi,jpj,zfmask)
1227	DO ij = 2, jpjm1
1228	DO ii = 2, jpim1
1229	zfmask(ii,ij) = tmask(ii,ij ,1) * tmask(ii+1,ij ,1) &
1230	& * tmask(ii,ij+1,1) * tmask(ii+1,ij+1,1)
1231	END DO
1232	END DO
1233
1234	! Lateral boundary conditions
1235	CALL lbc_lnk( zfmask , 'F', 1. )
1236	CALL lbc_lnk( fmask , 'F', 1. ) ; CALL lbc_lnk( bdytmask(:,:), 'T', 1. )
1237	CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. )
1238
1239	DO ib_bdy = 1, nb_bdy ! Indices and directions of rim velocity components
1240
1241	idx_bdy(ib_bdy)%flagu(:,:) = 0.e0
1242	idx_bdy(ib_bdy)%flagv(:,:) = 0.e0
1243	icount = 0
1244
1245	! Calculate relationship of U direction to the local orientation of the boundary
1246	! flagu = -1 : u component is normal to the dynamical boundary and its direction is outward
1247	! flagu = 0 : u is tangential
1248	! flagu = 1 : u is normal to the boundary and is direction is inward
1249
1250	DO igrd = 1,jpbgrd
1251	SELECT CASE( igrd )
1252	CASE( 1 )
1253	pmask => umask(:,:,1)
1254	i_offset = 0
1255	CASE( 2 )
1256	pmask => bdytmask
1257	i_offset = 1
1258	CASE( 3 )
1259	pmask => zfmask(:,:)
1260	i_offset = 0
1261	END SELECT
1262	icount = 0
1263	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1264	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1265	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1266	zefl = pmask(nbi+i_offset-1,nbj)
1267	zwfl = pmask(nbi+i_offset,nbj)
1268	! This error check only works if you are using the bdyXmask arrays
1269	IF( i_offset == 1 .and. zefl + zwfl == 2 ) THEN
1270	icount = icount + 1
1271	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1272	ELSE
1273	idx_bdy(ib_bdy)%flagu(ib,igrd) = -zefl + zwfl
1274	ENDIF
1275	END DO
1276	IF( icount /= 0 ) THEN
1277	IF(lwp) WRITE(numout,*)
1278	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1279	' are not boundary points (flagu calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1280	IF(lwp) WRITE(numout,*) ' ========== '
1281	IF(lwp) WRITE(numout,*)
1282	nstop = nstop + 1
1283	ENDIF
1284	END DO
1285
1286	! Calculate relationship of V direction to the local orientation of the boundary
1287	! flagv = -1 : v component is normal to the dynamical boundary but its direction is outward
1288	! flagv = 0 : v is tangential
1289	! flagv = 1 : v is normal to the boundary and is direction is inward
1290
1291	DO igrd = 1,jpbgrd
1292	SELECT CASE( igrd )
1293	CASE( 1 )
1294	pmask => vmask(:,:,1)
1295	j_offset = 0
1296	CASE( 2 )
1297	pmask => zfmask(:,:)
1298	j_offset = 0
1299	CASE( 3 )
1300	pmask => bdytmask
1301	j_offset = 1
1302	END SELECT
1303	icount = 0
1304	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1305	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1306	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1307	znfl = pmask(nbi,nbj+j_offset-1 )
1308	zsfl = pmask(nbi,nbj+j_offset)
1309	! This error check only works if you are using the bdyXmask arrays
1310	IF( j_offset == 1 .and. znfl + zsfl == 2 ) THEN
1311	IF(lwp) WRITE(numout,*) 'Problem with igrd = ',igrd,' at (global) nbi, nbj : ',mig(nbi),mjg(nbj)
1312	icount = icount + 1
1313	ELSE
1314	idx_bdy(ib_bdy)%flagv(ib,igrd) = -znfl + zsfl
1315	END IF
1316	END DO
1317	IF( icount /= 0 ) THEN
1318	IF(lwp) WRITE(numout,*)
1319	IF(lwp) WRITE(numout,*) ' E R R O R : Some ',cgrid(igrd),' grid points,', &
1320	' are not boundary points (flagv calculation). Check nbi, nbj, indices for boundary set ',ib_bdy
1321	IF(lwp) WRITE(numout,*) ' ========== '
1322	IF(lwp) WRITE(numout,*)
1323	nstop = nstop + 1
1324	ENDIF
1325	END DO
1326
1327	END DO
1328
1329	! Compute total lateral surface for volume correction:
1330	! ----------------------------------------------------
1331	! JC: this must be done at each time step with key_vvl
1332	bdysurftot = 0.e0
1333	IF( ln_vol ) THEN
1334	igrd = 2 ! Lateral surface at U-points
1335	DO ib_bdy = 1, nb_bdy
1336	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1337	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1338	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1339	flagu => idx_bdy(ib_bdy)%flagu(ib,igrd)
1340	bdysurftot = bdysurftot + hu (nbi , nbj) &
1341	& * e2u (nbi , nbj) * ABS( flagu ) &
1342	& * tmask_i(nbi , nbj) &
1343	& * tmask_i(nbi+1, nbj)
1344	ENDDO
1345	ENDDO
1346
1347	igrd=3 ! Add lateral surface at V-points
1348	DO ib_bdy = 1, nb_bdy
1349	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
1350	nbi => idx_bdy(ib_bdy)%nbi(ib,igrd)
1351	nbj => idx_bdy(ib_bdy)%nbj(ib,igrd)
1352	flagv => idx_bdy(ib_bdy)%flagv(ib,igrd)
1353	bdysurftot = bdysurftot + hv (nbi, nbj ) &
1354	& * e1v (nbi, nbj ) * ABS( flagv ) &
1355	& * tmask_i(nbi, nbj ) &
1356	& * tmask_i(nbi, nbj+1)
1357	ENDDO
1358	ENDDO
1359	!
1360	IF( lk_mpp ) CALL mpp_sum( bdysurftot ) ! sum over the global domain
1361	END IF
1362	!
1363	! Tidy up
1364	!--------
1365	IF (nb_bdy>0) THEN
1366	DEALLOCATE(nbidta, nbjdta, nbrdta)
1367	ENDIF
1368
1369	CALL wrk_dealloc(jpi,jpj,zfmask)
1370
1371	IF( nn_timing == 1 ) CALL timing_stop('bdy_init')
1372
1373	END SUBROUTINE bdy_init
1374
1375	SUBROUTINE bdy_ctl_seg
1376	!!----------------------------------------------------------------------
1377	!! * ROUTINE bdy_ctl_seg *
1378	!!
1379	!! ** Purpose : Check straight open boundary segments location
1380	!!
1381	!! ** Method : - Look for open boundary corners
1382	!! - Check that segments start or end on land
1383	!!----------------------------------------------------------------------
1384	INTEGER :: ib, ib1, ib2, ji ,jj, itest
1385	INTEGER, DIMENSION(jp_nseg,2) :: icorne, icornw, icornn, icorns
1386	REAL(wp), DIMENSION(2) :: ztestmask
1387	!!----------------------------------------------------------------------
1388	!
1389	IF (lwp) WRITE(numout,*) ' '
1390	IF (lwp) WRITE(numout,*) 'bdy_ctl_seg: Check analytical segments'
1391	IF (lwp) WRITE(numout,*) '~~~~~~~~~~~~'
1392	!
1393	IF(lwp) WRITE(numout,*) 'Number of east segments : ', nbdysege
1394	IF(lwp) WRITE(numout,*) 'Number of west segments : ', nbdysegw
1395	IF(lwp) WRITE(numout,*) 'Number of north segments : ', nbdysegn
1396	IF(lwp) WRITE(numout,*) 'Number of south segments : ', nbdysegs
1397	! 1. Check bounds
1398	!----------------
1399	DO ib = 1, nbdysegn
1400	IF (lwp) WRITE(numout,) '*check north seg bounds pckg: ', npckgn(ib)
1401	IF ((jpjnob(ib).ge.jpjglo-1).or.&
1402	&(jpjnob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1403	IF (jpindt(ib).ge.jpinft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1404	IF (jpindt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1405	IF (jpinft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1406	END DO
1407	!
1408	DO ib = 1, nbdysegs
1409	IF (lwp) WRITE(numout,) '*check south seg bounds pckg: ', npckgs(ib)
1410	IF ((jpjsob(ib).ge.jpjglo-1).or.&
1411	&(jpjsob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1412	IF (jpisdt(ib).ge.jpisft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1413	IF (jpisdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1414	IF (jpisft(ib).ge.jpiglo) CALL ctl_stop( 'End index out of domain' )
1415	END DO
1416	!
1417	DO ib = 1, nbdysege
1418	IF (lwp) WRITE(numout,) '*check east seg bounds pckg: ', npckge(ib)
1419	IF ((jpieob(ib).ge.jpiglo-1).or.&
1420	&(jpieob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1421	IF (jpjedt(ib).ge.jpjeft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1422	IF (jpjedt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1423	IF (jpjeft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1424	END DO
1425	!
1426	DO ib = 1, nbdysegw
1427	IF (lwp) WRITE(numout,) '*check west seg bounds pckg: ', npckgw(ib)
1428	IF ((jpiwob(ib).ge.jpiglo-1).or.&
1429	&(jpiwob(ib).le.1)) CALL ctl_stop( 'nbdyind out of domain' )
1430	IF (jpjwdt(ib).ge.jpjwft(ib)) CALL ctl_stop( 'Bdy start index is greater than end index' )
1431	IF (jpjwdt(ib).le.1 ) CALL ctl_stop( 'Start index out of domain' )
1432	IF (jpjwft(ib).ge.jpjglo) CALL ctl_stop( 'End index out of domain' )
1433	ENDDO
1434	!
1435	!
1436	! 2. Look for segment crossings
1437	!------------------------------
1438	IF (lwp) WRITE(numout,) '*Look for segments corners :'
1439	!
1440	itest = 0 ! corner number
1441	!
1442	! flag to detect if start or end of open boundary belongs to a corner
1443	! if not (=0), it must be on land.
1444	! if a corner is detected, save bdy package number for further tests
1445	icorne(:,:)=0. ; icornw(:,:)=0. ; icornn(:,:)=0. ; icorns(:,:)=0.
1446	! South/West crossings
1447	IF ((nbdysegw > 0).AND.(nbdysegs > 0)) THEN
1448	DO ib1 = 1, nbdysegw
1449	DO ib2 = 1, nbdysegs
1450	IF (( jpisdt(ib2)<=jpiwob(ib1)).AND. &
1451	& ( jpisft(ib2)>=jpiwob(ib1)).AND. &
1452	& ( jpjwdt(ib1)<=jpjsob(ib2)).AND. &
1453	& ( jpjwft(ib1)>=jpjsob(ib2))) THEN
1454	IF ((jpjwdt(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpiwob(ib1))) THEN
1455	! We have a possible South-West corner
1456	! WRITE(numout,*) ' Found a South-West corner at (i,j): ', jpisdt(ib2), jpjwdt(ib1)
1457	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgs(ib2)
1458	icornw(ib1,1) = npckgs(ib2)
1459	icorns(ib2,1) = npckgw(ib1)
1460	ELSEIF ((jpisft(ib2)==jpiwob(ib1)).AND.(jpjwft(ib1)==jpjsob(ib2))) THEN
1461	IF(lwp) WRITE(numout,*)
1462	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1463	& jpisft(ib2), jpjwft(ib1)
1464	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1465	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1466	& ' and South segment: ',npckgs(ib2)
1467	IF(lwp) WRITE(numout,*)
1468	nstop = nstop + 1
1469	ELSE
1470	IF(lwp) WRITE(numout,*)
1471	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and West Open boundary indices'
1472	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1) , &
1473	& ' and South segment: ',npckgs(ib2)
1474	IF(lwp) WRITE(numout,*)
1475	nstop = nstop+1
1476	END IF
1477	END IF
1478	END DO
1479	END DO
1480	END IF
1481	!
1482	! South/East crossings
1483	IF ((nbdysege > 0).AND.(nbdysegs > 0)) THEN
1484	DO ib1 = 1, nbdysege
1485	DO ib2 = 1, nbdysegs
1486	IF (( jpisdt(ib2)<=jpieob(ib1)+1).AND. &
1487	& ( jpisft(ib2)>=jpieob(ib1)+1).AND. &
1488	& ( jpjedt(ib1)<=jpjsob(ib2) ).AND. &
1489	& ( jpjeft(ib1)>=jpjsob(ib2) )) THEN
1490	IF ((jpjedt(ib1)==jpjsob(ib2)).AND.(jpisft(ib2)==jpieob(ib1)+1)) THEN
1491	! We have a possible South-East corner
1492	! WRITE(numout,*) ' Found a South-East corner at (i,j): ', jpisft(ib2), jpjedt(ib1)
1493	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgs(ib2)
1494	icorne(ib1,1) = npckgs(ib2)
1495	icorns(ib2,2) = npckge(ib1)
1496	ELSEIF ((jpjeft(ib1)==jpjsob(ib2)).AND.(jpisdt(ib2)==jpieob(ib1)+1)) THEN
1497	IF(lwp) WRITE(numout,*)
1498	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1499	& jpisdt(ib2), jpjeft(ib1)
1500	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1501	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1502	& ' and South segment: ',npckgs(ib2)
1503	IF(lwp) WRITE(numout,*)
1504	nstop = nstop + 1
1505	ELSE
1506	IF(lwp) WRITE(numout,*)
1507	IF(lwp) WRITE(numout,*) ' E R R O R : Check South and East Open boundary indices'
1508	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1509	& ' and South segment: ',npckgs(ib2)
1510	IF(lwp) WRITE(numout,*)
1511	nstop = nstop + 1
1512	END IF
1513	END IF
1514	END DO
1515	END DO
1516	END IF
1517	!
1518	! North/West crossings
1519	IF ((nbdysegn > 0).AND.(nbdysegw > 0)) THEN
1520	DO ib1 = 1, nbdysegw
1521	DO ib2 = 1, nbdysegn
1522	IF (( jpindt(ib2)<=jpiwob(ib1) ).AND. &
1523	& ( jpinft(ib2)>=jpiwob(ib1) ).AND. &
1524	& ( jpjwdt(ib1)<=jpjnob(ib2)+1).AND. &
1525	& ( jpjwft(ib1)>=jpjnob(ib2)+1)) THEN
1526	IF ((jpjwft(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpiwob(ib1))) THEN
1527	! We have a possible North-West corner
1528	! WRITE(numout,*) ' Found a North-West corner at (i,j): ', jpindt(ib2), jpjwft(ib1)
1529	! WRITE(numout,*) ' between segments: ', npckgw(ib1), npckgn(ib2)
1530	icornw(ib1,2) = npckgn(ib2)
1531	icornn(ib2,1) = npckgw(ib1)
1532	ELSEIF ((jpjwdt(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpiwob(ib1))) THEN
1533	IF(lwp) WRITE(numout,*)
1534	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1535	& jpinft(ib2), jpjwdt(ib1)
1536	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1537	IF(lwp) WRITE(numout,*) ' Crossing problem with West segment: ',npckgw(ib1), &
1538	& ' and North segment: ',npckgn(ib2)
1539	IF(lwp) WRITE(numout,*)
1540	nstop = nstop + 1
1541	ELSE
1542	IF(lwp) WRITE(numout,*)
1543	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and West Open boundary indices'
1544	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with West segment: ',npckgw(ib1), &
1545	& ' and North segment: ',npckgn(ib2)
1546	IF(lwp) WRITE(numout,*)
1547	nstop = nstop + 1
1548	END IF
1549	END IF
1550	END DO
1551	END DO
1552	END IF
1553	!
1554	! North/East crossings
1555	IF ((nbdysegn > 0).AND.(nbdysege > 0)) THEN
1556	DO ib1 = 1, nbdysege
1557	DO ib2 = 1, nbdysegn
1558	IF (( jpindt(ib2)<=jpieob(ib1)+1).AND. &
1559	& ( jpinft(ib2)>=jpieob(ib1)+1).AND. &
1560	& ( jpjedt(ib1)<=jpjnob(ib2)+1).AND. &
1561	& ( jpjeft(ib1)>=jpjnob(ib2)+1)) THEN
1562	IF ((jpjeft(ib1)==jpjnob(ib2)+1).AND.(jpinft(ib2)==jpieob(ib1)+1)) THEN
1563	! We have a possible North-East corner
1564	! WRITE(numout,*) ' Found a North-East corner at (i,j): ', jpinft(ib2), jpjeft(ib1)
1565	! WRITE(numout,*) ' between segments: ', npckge(ib1), npckgn(ib2)
1566	icorne(ib1,2) = npckgn(ib2)
1567	icornn(ib2,2) = npckge(ib1)
1568	ELSEIF ((jpjedt(ib1)==jpjnob(ib2)+1).AND.(jpindt(ib2)==jpieob(ib1)+1)) THEN
1569	IF(lwp) WRITE(numout,*)
1570	IF(lwp) WRITE(numout,*) ' E R R O R : Found an acute open boundary corner at point (i,j)= ', &
1571	& jpindt(ib2), jpjedt(ib1)
1572	IF(lwp) WRITE(numout,*) ' ========== Not allowed yet'
1573	IF(lwp) WRITE(numout,*) ' Crossing problem with East segment: ',npckge(ib1), &
1574	& ' and North segment: ',npckgn(ib2)
1575	IF(lwp) WRITE(numout,*)
1576	nstop = nstop + 1
1577	ELSE
1578	IF(lwp) WRITE(numout,*)
1579	IF(lwp) WRITE(numout,*) ' E R R O R : Check North and East Open boundary indices'
1580	IF(lwp) WRITE(numout,*) ' ========== Crossing problem with East segment: ',npckge(ib1), &
1581	& ' and North segment: ',npckgn(ib2)
1582	IF(lwp) WRITE(numout,*)
1583	nstop = nstop + 1
1584	END IF
1585	END IF
1586	END DO
1587	END DO
1588	END IF
1589	!
1590	! 3. Check if segment extremities are on land
1591	!--------------------------------------------
1592	!
1593	! West segments
1594	DO ib = 1, nbdysegw
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) == jpiwob(ib)).AND. &
1600	& ((jj + njmpp - 1) == jpjwdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1601	IF (((ji + nimpp - 1) == jpiwob(ib)).AND. &
1602	& ((jj + njmpp - 1) == jpjwft(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 (icornw(ib,1)==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 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-West corner at (i,j): ', jpiwob(ib), jpjwdt(ib)
1617	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,1))
1618	itest=itest+1
1619	ENDIF
1620	ENDIF
1621	IF (ztestmask(2)==1) THEN
1622	IF (icornw(ib,2)==0) THEN
1623	IF(lwp) WRITE(numout,*)
1624	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgw(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-West corner at (i,j): ', jpiwob(ib), jpjwft(ib)
1631	CALL bdy_ctl_corn(npckgw(ib), icornw(ib,2))
1632	itest=itest+1
1633	ENDIF
1634	ENDIF
1635	END DO
1636	!
1637	! East segments
1638	DO ib = 1, nbdysege
1639	! get mask at boundary extremities:
1640	ztestmask(1:2)=0.
1641	DO ji = 1, jpi
1642	DO jj = 1, jpj
1643	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1644	& ((jj + njmpp - 1) == jpjedt(ib))) ztestmask(1)=tmask(ji,jj,1)
1645	IF (((ji + nimpp - 1) == jpieob(ib)+1).AND. &
1646	& ((jj + njmpp - 1) == jpjeft(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) THEN
1652	IF (icorne(ib,1)==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 start 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 South-East corner at (i,j): ', jpieob(ib)+1, jpjedt(ib)
1661	CALL bdy_ctl_corn(npckge(ib), icorne(ib,1))
1662	itest=itest+1
1663	ENDIF
1664	ENDIF
1665	IF (ztestmask(2)==1) THEN
1666	IF (icorne(ib,2)==0) THEN
1667	IF(lwp) WRITE(numout,*)
1668	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckge(ib)
1669	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1670	IF(lwp) WRITE(numout,*)
1671	nstop = nstop + 1
1672	ELSE
1673	! This is a corner
1674	IF(lwp) WRITE(numout,*) 'Found a North-East corner at (i,j): ', jpieob(ib)+1, jpjeft(ib)
1675	CALL bdy_ctl_corn(npckge(ib), icorne(ib,2))
1676	itest=itest+1
1677	ENDIF
1678	ENDIF
1679	END DO
1680	!
1681	! South segments
1682	DO ib = 1, nbdysegs
1683	! get mask at boundary extremities:
1684	ztestmask(1:2)=0.
1685	DO ji = 1, jpi
1686	DO jj = 1, jpj
1687	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1688	& ((ji + nimpp - 1) == jpisdt(ib))) ztestmask(1)=tmask(ji,jj,1)
1689	IF (((jj + njmpp - 1) == jpjsob(ib)).AND. &
1690	& ((ji + nimpp - 1) == jpisft(ib))) ztestmask(2)=tmask(ji,jj,1)
1691	END DO
1692	END DO
1693	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1694
1695	IF ((ztestmask(1)==1).AND.(icorns(ib,1)==0)) THEN
1696	IF(lwp) WRITE(numout,*)
1697	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1698	IF(lwp) WRITE(numout,*) ' ========== does not start on land or on a corner'
1699	IF(lwp) WRITE(numout,*)
1700	nstop = nstop + 1
1701	ENDIF
1702	IF ((ztestmask(2)==1).AND.(icorns(ib,2)==0)) THEN
1703	IF(lwp) WRITE(numout,*)
1704	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgs(ib)
1705	IF(lwp) WRITE(numout,*) ' ========== does not end on land or on a corner'
1706	IF(lwp) WRITE(numout,*)
1707	nstop = nstop + 1
1708	ENDIF
1709	END DO
1710	!
1711	! North segments
1712	DO ib = 1, nbdysegn
1713	! get mask at boundary extremities:
1714	ztestmask(1:2)=0.
1715	DO ji = 1, jpi
1716	DO jj = 1, jpj
1717	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1718	& ((ji + nimpp - 1) == jpindt(ib))) ztestmask(1)=tmask(ji,jj,1)
1719	IF (((jj + njmpp - 1) == jpjnob(ib)+1).AND. &
1720	& ((ji + nimpp - 1) == jpinft(ib))) ztestmask(2)=tmask(ji,jj,1)
1721	END DO
1722	END DO
1723	IF( lk_mpp ) CALL mpp_sum( ztestmask, 2 ) ! sum over the global domain
1724
1725	IF ((ztestmask(1)==1).AND.(icornn(ib,1)==0)) THEN
1726	IF(lwp) WRITE(numout,*)
1727	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1728	IF(lwp) WRITE(numout,*) ' ========== does not start on land'
1729	IF(lwp) WRITE(numout,*)
1730	nstop = nstop + 1
1731	ENDIF
1732	IF ((ztestmask(2)==1).AND.(icornn(ib,2)==0)) THEN
1733	IF(lwp) WRITE(numout,*)
1734	IF(lwp) WRITE(numout,*) ' E R R O R : Open boundary segment ', npckgn(ib)
1735	IF(lwp) WRITE(numout,*) ' ========== does not end on land'
1736	IF(lwp) WRITE(numout,*)
1737	nstop = nstop + 1
1738	ENDIF
1739	END DO
1740	!
1741	IF ((itest==0).AND.(lwp)) WRITE(numout,*) 'NO open boundary corner found'
1742	!
1743	! Other tests TBD:
1744	! segments completly on land
1745	! optimized open boundary array length according to landmask
1746	! Nudging layers that overlap with interior domain
1747	!
1748	END SUBROUTINE bdy_ctl_seg
1749
1750	SUBROUTINE bdy_ctl_corn( ib1, ib2 )
1751	!!----------------------------------------------------------------------
1752	!! * ROUTINE bdy_ctl_corn *
1753	!!
1754	!! ** Purpose : Check numerical schemes consistency between
1755	!! segments having a common corner
1756	!!
1757	!! ** Method :
1758	!!----------------------------------------------------------------------
1759	INTEGER, INTENT(in) :: ib1, ib2
1760	INTEGER :: itest
1761	!!----------------------------------------------------------------------
1762	itest = 0
1763
1764	IF (cn_dyn2d(ib1)/=cn_dyn2d(ib2)) itest = itest + 1
1765	IF (cn_dyn3d(ib1)/=cn_dyn3d(ib2)) itest = itest + 1
1766	IF (cn_tra(ib1)/=cn_tra(ib2)) itest = itest + 1
1767	!
1768	IF (nn_dyn2d_dta(ib1)/=nn_dyn2d_dta(ib2)) itest = itest + 1
1769	IF (nn_dyn3d_dta(ib1)/=nn_dyn3d_dta(ib2)) itest = itest + 1
1770	IF (nn_tra_dta(ib1)/=nn_tra_dta(ib2)) itest = itest + 1
1771	!
1772	IF (nn_rimwidth(ib1)/=nn_rimwidth(ib2)) itest = itest + 1
1773	!
1774	IF ( itest>0 ) THEN
1775	IF(lwp) WRITE(numout,*) ' E R R O R : Segments ', ib1, 'and ', ib2
1776	IF(lwp) WRITE(numout,*) ' ========== have different open bdy schemes'
1777	IF(lwp) WRITE(numout,*)
1778	nstop = nstop + 1
1779	ENDIF
1780	!
1781	END SUBROUTINE bdy_ctl_corn
1782
1783	SUBROUTINE bdy_namelist()
1784	!!---------------------------------------------------------------------
1785	!! * ROUTINE bdy_namelist *
1786	!!
1787	!! ** Purpose : Broadcast namelist variables read by procesor lwm
1788	!!
1789	!! ** Method : use lib_mpp
1790	!!----------------------------------------------------------------------
1791	#if defined key_mpp_mpi
1792	CALL mpp_bcast(nb_bdy)
1793	CALL mpp_bcast(ln_coords_file, jp_bdy)
1794	CALL mpp_bcast(cn_coords_file, 80)
1795	CALL mpp_bcast(ln_mask_file)
1796	CALL mpp_bcast(cn_mask_file, 80)
1797	CALL mpp_bcast(cn_dyn2d, 20)
1798	CALL mpp_bcast(nn_dyn2d_dta)
1799	CALL mpp_bcast(cn_dyn3d, 20)
1800	CALL mpp_bcast(nn_dyn3d_dta)
1801	CALL mpp_bcast(cn_tra, 20)
1802	CALL mpp_bcast(nn_tra_dta)
1803	CALL mpp_bcast(ln_tra_dmp)
1804	CALL mpp_bcast(ln_dyn3d_dmp)
1805	CALL mpp_bcast(rn_time_dmp, jp_bdy)
1806	CALL mpp_bcast(rn_time_dmp_out, jp_bdy)
1807	CALL mpp_bcast(cn_ice_lim, 20)
1808	CALL mpp_bcast(nn_ice_lim_dta)
1809	CALL mpp_bcast(rn_ice_tem, jp_bdy)
1810	CALL mpp_bcast(rn_ice_sal, jp_bdy)
1811	CALL mpp_bcast(rn_ice_age, jp_bdy)
1812	CALL mpp_bcast(ln_vol)
1813	CALL mpp_bcast(nn_volctl)
1814	CALL mpp_bcast(nn_rimwidth)
1815	#endif
1816	END SUBROUTINE bdy_namelist
1817
1818	SUBROUTINE index_namelist()
1819	!!---------------------------------------------------------------------
1820	!! * ROUTINE index_namelist *
1821	!!
1822	!! ** Purpose : Broadcast namelist variables read by procesor lwm
1823	!!
1824	!! ** Method : use lib_mpp
1825	!!----------------------------------------------------------------------
1826	#if defined key_mpp_mpi
1827	CALL mpp_bcast(ctypebdy, 1)
1828	CALL mpp_bcast(nbdyind)
1829	CALL mpp_bcast(nbdybeg)
1830	CALL mpp_bcast(nbdyend)
1831	#endif
1832	END SUBROUTINE index_namelist
1833
1834	#else
1835	!!---------------------------------------------------------------------------------
1836	!! Dummy module NO open boundaries
1837	!!---------------------------------------------------------------------------------
1838	CONTAINS
1839	SUBROUTINE bdy_init ! Dummy routine
1840	END SUBROUTINE bdy_init
1841	#endif
1842
1843	!!=================================================================================
1844	END MODULE bdyini

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source: branches/UKMO/test_moci_test_suite_namelist_read/NEMOGCM/NEMO/OPA_SRC/BDY/bdyini.F90 @ 9383

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