New URL for NEMO forge! http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.

bdyini.F90 in branches/2014/dev_r4621_NOC4_BDY_VERT_INTERP/NEMOGCM/NEMO/OPA_SRC/BDY – NEMO

Context Navigation

source: branches/2014/dev_r4621_NOC4_BDY_VERT_INTERP/NEMOGCM/NEMO/OPA_SRC/BDY/bdyini.F90 @ 5620

Last change on this file since 5620 was 5620, checked in by jamesharle, 9 years ago
Merge with r5619 of trunk, update to unstructured BDY interpolation in fldread.F90. Structured BDY interpolation incomplete.
Property svn:keywords set to `Id`
File size: 83.8 KB

Line
1	MODULE bdyini
2	!!======================================================================
3	!! * MODULE bdyini *
4	!! Unstructured open boundaries : initialisation
5	!!======================================================================
6	!! History : 1.0 ! 2005-01 (J. Chanut, A. Sellar) Original code
7	!! - ! 2007-01 (D. Storkey) Update to use IOM module
8	!! - ! 2007-01 (D. Storkey) Tidal forcing
9	!! 3.0 ! 2008-04 (NEMO team) add in the reference version
10	!! 3.3 ! 2010-09 (E.O'Dea) updates for Shelf configurations
11	!! 3.3 ! 2010-09 (D.Storkey) add ice boundary conditions
12	!! 3.4 ! 2011 (D. Storkey) rewrite in preparation for OBC-BDY merge
13	!! 3.4 ! 2012 (J. Chanut) straight open boundary case update
14	!! 3.5 ! 2012 (S. Mocavero, I. Epicoco) Updates for the
15	!! optimization of BDY communications
16	!!----------------------------------------------------------------------
17	#if defined key_bdy
18	!!----------------------------------------------------------------------
19	!! 'key_bdy' Unstructured Open Boundary Conditions
20	!!----------------------------------------------------------------------
21	!! bdy_init : Initialization of unstructured open boundaries
22	!!----------------------------------------------------------------------
23	USE wrk_nemo ! Memory Allocation
24	USE timing ! Timing
25	USE oce ! ocean dynamics and tracers variables
26	USE dom_oce ! ocean space and time domain
27	USE bdy_oce ! unstructured open boundary conditions
28	USE in_out_manager ! I/O units
29	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
30	USE lib_mpp ! for mpp_sum
31	USE iom ! I/O
32	USE sbctide, ONLY: lk_tide ! Tidal forcing or not
33	USE phycst, ONLY: rday
34
35	IMPLICIT NONE
36	PRIVATE
37
38	PUBLIC bdy_init ! routine called in nemo_init
39
40	INTEGER, PARAMETER :: jp_nseg = 100
41	INTEGER, PARAMETER :: nrimmax = 20 ! maximum rimwidth in structured
42	! open boundary data files
43	! Straight open boundary segment parameters:
44	INTEGER :: nbdysege, nbdysegw, nbdysegn, nbdysegs
45	INTEGER, DIMENSION(jp_nseg) :: jpieob, jpjedt, jpjeft, npckge
46	INTEGER, DIMENSION(jp_nseg) :: jpiwob, jpjwdt, jpjwft, npckgw
47	INTEGER, DIMENSION(jp_nseg) :: jpjnob, jpindt, jpinft, npckgn
48	INTEGER, DIMENSION(jp_nseg) :: jpjsob, jpisdt, jpisft, npckgs
49	!!----------------------------------------------------------------------
50	!! NEMO/OPA 4.0 , NEMO Consortium (2011)
51	!! $Id$
52	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
53	!!----------------------------------------------------------------------
54	CONTAINS
55
56	SUBROUTINE bdy_init
57	!!----------------------------------------------------------------------
58	!! * ROUTINE bdy_init *
59	!!
60	!! ** Purpose : Initialization of the dynamics and tracer fields with
61	!! unstructured open boundaries.
62	!!
63	!! ** Method : Read initialization arrays (mask, indices) to identify
64	!! an unstructured open boundary
65	!!
66	!! ** Input : bdy_init.nc, input file for unstructured open boundaries
67	!!----------------------------------------------------------------------
68	! namelist variables
69	!-------------------
70	CHARACTER(LEN=80),DIMENSION(jpbgrd) :: clfile
71	CHARACTER(LEN=1) :: ctypebdy
72	INTEGER :: nbdyind, nbdybeg, nbdyend
73
74	! local variables
75	!-------------------
76	INTEGER :: ib_bdy, ii, ij, ik, igrd, ib, ir, iseg ! dummy loop indices
77	INTEGER :: icount, icountr, ibr_max, ilen1, ibm1 ! local integers
78	INTEGER :: iw, ie, is, in, inum, id_dummy ! - -
79	INTEGER :: igrd_start, igrd_end, jpbdta ! - -
80	INTEGER :: jpbdtau, jpbdtas ! - -
81	INTEGER :: ib_bdy1, ib_bdy2, ib1, ib2 ! - -
82	INTEGER :: i_offset, j_offset ! - -
83	INTEGER, POINTER :: nbi, nbj, nbr ! short cuts
84	REAL(wp), POINTER :: flagu, flagv ! - -
85	REAL(wp), POINTER, DIMENSION(:,:) :: pmask ! pointer to 2D mask fields
86	REAL(wp) :: zefl, zwfl, znfl, zsfl ! local scalars
87	INTEGER, DIMENSION (2) :: kdimsz
88	INTEGER, DIMENSION(jpbgrd,jp_bdy) :: nblendta ! Length of index arrays
89	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbidta, nbjdta ! Index arrays: i and j indices of bdy dta
90	INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbrdta ! Discrete distance from rim points
91	CHARACTER(LEN=1),DIMENSION(jpbgrd) :: cgrid
92	INTEGER :: com_east, com_west, com_south, com_north ! Flags for boundaries sending
93	INTEGER :: com_east_b, com_west_b, com_south_b, com_north_b ! Flags for boundaries receiving
94	INTEGER :: iw_b(4), ie_b(4), is_b(4), in_b(4) ! Arrays for neighbours coordinates
95	REAL(wp), POINTER, DIMENSION(:,:) :: zfmask ! temporary fmask array excluding coastal boundary condition (shlat)
96
97	!!
98	NAMELIST/nambdy/ nb_bdy, ln_coords_file, cn_coords_file, &
99	& ln_mask_file, cn_mask_file, cn_dyn2d, nn_dyn2d_dta, &
100	& cn_dyn3d, nn_dyn3d_dta, cn_tra, nn_tra_dta, &
101	& ln_tra_dmp, ln_dyn3d_dmp, rn_time_dmp, rn_time_dmp_out, &
102	& cn_ice_lim, nn_ice_lim_dta, &
103	& rn_ice_tem, rn_ice_sal, rn_ice_age, &
104	& ln_vol, nn_volctl, nn_rimwidth, nb_jpk_bdy
105	!!
106	NAMELIST/nambdy_index/ ctypebdy, nbdyind, nbdybeg, nbdyend
107	INTEGER :: ios ! Local integer output status for namelist read
108	!!----------------------------------------------------------------------
109
110	IF( nn_timing == 1 ) CALL timing_start('bdy_init')
111
112	IF(lwp) WRITE(numout,*)
113	IF(lwp) WRITE(numout,*) 'bdy_init : initialization of open boundaries'
114	IF(lwp) WRITE(numout,*) '~~~~~~~~'
115	!
116
117	IF( jperio /= 0 ) CALL ctl_stop( 'Cyclic or symmetric,', &
118	& ' and general open boundary condition are not compatible' )
119
120	cgrid= (/'t','u','v'/)
121
122	! ------------------------
123	! Read namelist parameters
124	! ------------------------
125
126	REWIND( numnam_ref ) ! Namelist nambdy in reference namelist :Unstructured open boundaries
127	READ ( numnam_ref, nambdy, IOSTAT = ios, ERR = 901)
128	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in reference namelist', lwp )
129
130	REWIND( numnam_cfg ) ! Namelist nambdy in configuration namelist :Unstructured open boundaries
131	READ ( numnam_cfg, nambdy, IOSTAT = ios, ERR = 902 )
132	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy in configuration namelist', lwp )
133	IF(lwm) WRITE ( numond, nambdy )
134
135	! -----------------------------------------
136	! Check and write out namelist parameters
137	! -----------------------------------------
138	! ! control prints
139	IF(lwp) WRITE(numout,*) ' nambdy'
140
141	IF( nb_bdy .eq. 0 ) THEN
142	IF(lwp) WRITE(numout,*) 'nb_bdy = 0, NO OPEN BOUNDARIES APPLIED.'
143	ELSE
144	IF(lwp) WRITE(numout,*) 'Number of open boundary sets : ',nb_bdy
145	ENDIF
146
147	DO ib_bdy = 1,nb_bdy
148	IF(lwp) WRITE(numout,*) ' '
149	IF(lwp) WRITE(numout,*) '------ Open boundary data set ',ib_bdy,'------'
150
151	IF( ln_coords_file(ib_bdy) ) THEN
152	IF(lwp) WRITE(numout,*) 'Boundary definition read from file '//TRIM(cn_coords_file(ib_bdy))
153	ELSE
154	IF(lwp) WRITE(numout,*) 'Boundary defined in namelist.'
155	ENDIF
156	IF(lwp) WRITE(numout,*)
157
158	IF(lwp) WRITE(numout,*) 'Boundary conditions for barotropic solution: '
159	SELECT CASE( cn_dyn2d(ib_bdy) )
160	CASE('none')
161	IF(lwp) WRITE(numout,*) ' no open boundary condition'
162	dta_bdy(ib_bdy)%ll_ssh = .false.
163	dta_bdy(ib_bdy)%ll_u2d = .false.
164	dta_bdy(ib_bdy)%ll_v2d = .false.
165	CASE('frs')
166	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
167	dta_bdy(ib_bdy)%ll_ssh = .false.
168	dta_bdy(ib_bdy)%ll_u2d = .true.
169	dta_bdy(ib_bdy)%ll_v2d = .true.
170	CASE('flather')
171	IF(lwp) WRITE(numout,*) ' Flather radiation condition'
172	dta_bdy(ib_bdy)%ll_ssh = .true.
173	dta_bdy(ib_bdy)%ll_u2d = .true.
174	dta_bdy(ib_bdy)%ll_v2d = .true.
175	CASE('orlanski')
176	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
177	dta_bdy(ib_bdy)%ll_ssh = .false.
178	dta_bdy(ib_bdy)%ll_u2d = .true.
179	dta_bdy(ib_bdy)%ll_v2d = .true.
180	CASE('orlanski_npo')
181	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
182	dta_bdy(ib_bdy)%ll_ssh = .false.
183	dta_bdy(ib_bdy)%ll_u2d = .true.
184	dta_bdy(ib_bdy)%ll_v2d = .true.
185	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn2d' )
186	END SELECT
187	IF( cn_dyn2d(ib_bdy) /= 'none' ) THEN
188	SELECT CASE( nn_dyn2d_dta(ib_bdy) ) !
189	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
190	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
191	CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' tidal harmonic forcing taken from file'
192	CASE( 3 ) ; IF(lwp) WRITE(numout,*) ' boundary data AND tidal harmonic forcing taken from files'
193	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn2d_dta must be between 0 and 3' )
194	END SELECT
195	IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(.NOT.lk_tide)) THEN
196	CALL ctl_stop( 'You must activate key_tide to add tidal forcing at open boundaries' )
197	ENDIF
198	ENDIF
199	IF(lwp) WRITE(numout,*)
200
201	IF(lwp) WRITE(numout,*) 'Boundary conditions for baroclinic velocities: '
202	SELECT CASE( cn_dyn3d(ib_bdy) )
203	CASE('none')
204	IF(lwp) WRITE(numout,*) ' no open boundary condition'
205	dta_bdy(ib_bdy)%ll_u3d = .false.
206	dta_bdy(ib_bdy)%ll_v3d = .false.
207	CASE('frs')
208	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
209	dta_bdy(ib_bdy)%ll_u3d = .true.
210	dta_bdy(ib_bdy)%ll_v3d = .true.
211	CASE('specified')
212	IF(lwp) WRITE(numout,*) ' Specified value'
213	dta_bdy(ib_bdy)%ll_u3d = .true.
214	dta_bdy(ib_bdy)%ll_v3d = .true.
215	CASE('zero')
216	IF(lwp) WRITE(numout,*) ' Zero baroclinic velocities (runoff case)'
217	dta_bdy(ib_bdy)%ll_u3d = .false.
218	dta_bdy(ib_bdy)%ll_v3d = .false.
219	CASE('orlanski')
220	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
221	dta_bdy(ib_bdy)%ll_u3d = .true.
222	dta_bdy(ib_bdy)%ll_v3d = .true.
223	CASE('orlanski_npo')
224	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
225	dta_bdy(ib_bdy)%ll_u3d = .true.
226	dta_bdy(ib_bdy)%ll_v3d = .true.
227	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_dyn3d' )
228	END SELECT
229	IF( cn_dyn3d(ib_bdy) /= 'none' ) THEN
230	SELECT CASE( nn_dyn3d_dta(ib_bdy) ) !
231	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
232	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
233	CASE DEFAULT ; CALL ctl_stop( 'nn_dyn3d_dta must be 0 or 1' )
234	END SELECT
235	ENDIF
236
237	IF ( ln_dyn3d_dmp(ib_bdy) ) THEN
238	IF ( cn_dyn3d(ib_bdy) == 'none' ) THEN
239	IF(lwp) WRITE(numout,*) 'No open boundary condition for baroclinic velocities: ln_dyn3d_dmp is set to .false.'
240	ln_dyn3d_dmp(ib_bdy)=.false.
241	ELSEIF ( cn_dyn3d(ib_bdy) == 'frs' ) THEN
242	CALL ctl_stop( 'Use FRS OR relaxation' )
243	ELSE
244	IF(lwp) WRITE(numout,*) ' + baroclinic velocities relaxation zone'
245	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
246	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
247	dta_bdy(ib_bdy)%ll_u3d = .true.
248	dta_bdy(ib_bdy)%ll_v3d = .true.
249	ENDIF
250	ELSE
251	IF(lwp) WRITE(numout,*) ' NO relaxation on baroclinic velocities'
252	ENDIF
253	IF(lwp) WRITE(numout,*)
254
255	IF(lwp) WRITE(numout,*) 'Boundary conditions for temperature and salinity: '
256	SELECT CASE( cn_tra(ib_bdy) )
257	CASE('none')
258	IF(lwp) WRITE(numout,*) ' no open boundary condition'
259	dta_bdy(ib_bdy)%ll_tem = .false.
260	dta_bdy(ib_bdy)%ll_sal = .false.
261	CASE('frs')
262	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
263	dta_bdy(ib_bdy)%ll_tem = .true.
264	dta_bdy(ib_bdy)%ll_sal = .true.
265	CASE('specified')
266	IF(lwp) WRITE(numout,*) ' Specified value'
267	dta_bdy(ib_bdy)%ll_tem = .true.
268	dta_bdy(ib_bdy)%ll_sal = .true.
269	CASE('neumann')
270	IF(lwp) WRITE(numout,*) ' Neumann conditions'
271	dta_bdy(ib_bdy)%ll_tem = .false.
272	dta_bdy(ib_bdy)%ll_sal = .false.
273	CASE('runoff')
274	IF(lwp) WRITE(numout,*) ' Runoff conditions : Neumann for T and specified to 0.1 for salinity'
275	dta_bdy(ib_bdy)%ll_tem = .false.
276	dta_bdy(ib_bdy)%ll_sal = .false.
277	CASE('orlanski')
278	IF(lwp) WRITE(numout,*) ' Orlanski (fully oblique) radiation condition with adaptive nudging'
279	dta_bdy(ib_bdy)%ll_tem = .true.
280	dta_bdy(ib_bdy)%ll_sal = .true.
281	CASE('orlanski_npo')
282	IF(lwp) WRITE(numout,*) ' Orlanski (NPO) radiation condition with adaptive nudging'
283	dta_bdy(ib_bdy)%ll_tem = .true.
284	dta_bdy(ib_bdy)%ll_sal = .true.
285	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_tra' )
286	END SELECT
287	IF( cn_tra(ib_bdy) /= 'none' ) THEN
288	SELECT CASE( nn_tra_dta(ib_bdy) ) !
289	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
290	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
291	CASE DEFAULT ; CALL ctl_stop( 'nn_tra_dta must be 0 or 1' )
292	END SELECT
293	ENDIF
294
295	IF ( ln_tra_dmp(ib_bdy) ) THEN
296	IF ( cn_tra(ib_bdy) == 'none' ) THEN
297	IF(lwp) WRITE(numout,*) 'No open boundary condition for tracers: ln_tra_dmp is set to .false.'
298	ln_tra_dmp(ib_bdy)=.false.
299	ELSEIF ( cn_tra(ib_bdy) == 'frs' ) THEN
300	CALL ctl_stop( 'Use FRS OR relaxation' )
301	ELSE
302	IF(lwp) WRITE(numout,*) ' + T/S relaxation zone'
303	IF(lwp) WRITE(numout,*) ' Damping time scale: ',rn_time_dmp(ib_bdy),' days'
304	IF(lwp) WRITE(numout,*) ' Outflow damping time scale: ',rn_time_dmp_out(ib_bdy),' days'
305	IF((lwp).AND.rn_time_dmp(ib_bdy)<0) CALL ctl_stop( 'Time scale must be positive' )
306	dta_bdy(ib_bdy)%ll_tem = .true.
307	dta_bdy(ib_bdy)%ll_sal = .true.
308	ENDIF
309	ELSE
310	IF(lwp) WRITE(numout,*) ' NO T/S relaxation'
311	ENDIF
312	IF(lwp) WRITE(numout,*)
313
314	#if defined key_lim2
315	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
316	SELECT CASE( cn_ice_lim(ib_bdy) )
317	CASE('none')
318	IF(lwp) WRITE(numout,*) ' no open boundary condition'
319	dta_bdy(ib_bdy)%ll_frld = .false.
320	dta_bdy(ib_bdy)%ll_hicif = .false.
321	dta_bdy(ib_bdy)%ll_hsnif = .false.
322	CASE('frs')
323	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
324	dta_bdy(ib_bdy)%ll_frld = .true.
325	dta_bdy(ib_bdy)%ll_hicif = .true.
326	dta_bdy(ib_bdy)%ll_hsnif = .true.
327	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
328	END SELECT
329	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
330	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
331	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
332	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
333	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
334	END SELECT
335	ENDIF
336	IF(lwp) WRITE(numout,*)
337	#elif defined key_lim3
338	IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: '
339	SELECT CASE( cn_ice_lim(ib_bdy) )
340	CASE('none')
341	IF(lwp) WRITE(numout,*) ' no open boundary condition'
342	dta_bdy(ib_bdy)%ll_a_i = .false.
343	dta_bdy(ib_bdy)%ll_ht_i = .false.
344	dta_bdy(ib_bdy)%ll_ht_s = .false.
345	CASE('frs')
346	IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme'
347	dta_bdy(ib_bdy)%ll_a_i = .true.
348	dta_bdy(ib_bdy)%ll_ht_i = .true.
349	dta_bdy(ib_bdy)%ll_ht_s = .true.
350	CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for cn_ice_lim' )
351	END SELECT
352	IF( cn_ice_lim(ib_bdy) /= 'none' ) THEN
353	SELECT CASE( nn_ice_lim_dta(ib_bdy) ) !
354	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data'
355	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file'
356	CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim_dta must be 0 or 1' )
357	END SELECT
358	ENDIF
359	IF(lwp) WRITE(numout,*)
360	IF(lwp) WRITE(numout,*) ' tem of bdy sea-ice = ', rn_ice_tem(ib_bdy)
361	IF(lwp) WRITE(numout,*) ' sal of bdy sea-ice = ', rn_ice_sal(ib_bdy)
362	IF(lwp) WRITE(numout,*) ' age of bdy sea-ice = ', rn_ice_age(ib_bdy)
363	#endif
364
365	IF(lwp) WRITE(numout,*) ' Width of relaxation zone = ', nn_rimwidth(ib_bdy)
366	IF(lwp) WRITE(numout,*)
367
368	ENDDO
369
370	IF (nb_bdy .gt. 0) THEN
371	IF( ln_vol ) THEN ! check volume conservation (nn_volctl value)
372	IF(lwp) WRITE(numout,*) 'Volume correction applied at open boundaries'
373	IF(lwp) WRITE(numout,*)
374	SELECT CASE ( nn_volctl )
375	CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' The total volume will be constant'
376	CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' The total volume will vary according to the surface E-P flux'
377	CASE DEFAULT ; CALL ctl_stop( 'nn_volctl must be 0 or 1' )
378	END SELECT
379	IF(lwp) WRITE(numout,*)
380	ELSE
381	IF(lwp) WRITE(numout,*) 'No volume correction applied at open boundaries'
382	IF(lwp) WRITE(numout,*)
383	ENDIF
384	IF( nb_jpk_bdy > 0 ) THEN
385	IF(lwp) WRITE(numout,) ' open boundary will be interpolate in the vertical onto the native grid *'
386	ELSE
387	IF(lwp) WRITE(numout,) ' open boundary will be read straight onto the native grid without vertical interpolation *'
388	ENDIF
389	ENDIF
390
391	! -------------------------------------------------
392	! Initialise indices arrays for open boundaries
393	! -------------------------------------------------
394
395	! Work out global dimensions of boundary data
396	! ---------------------------------------------
397	REWIND( numnam_cfg )
398
399	!!----------------------------------------------------------------------
400
401
402
403	nblendta(:,:) = 0
404	nbdysege = 0
405	nbdysegw = 0
406	nbdysegn = 0
407	nbdysegs = 0
408	icount = 0 ! count user defined segments
409	! Dimensions below are used to allocate arrays to read external data
410	jpbdtas = 1 ! Maximum size of boundary data (structured case)
411	jpbdtau = 1 ! Maximum size of boundary data (unstructured case)
412
413	DO ib_bdy = 1, nb_bdy
414
415	IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Work out size of global arrays from namelist parameters
416
417	icount = icount + 1
418	! No REWIND here because may need to read more than one nambdy_index namelist.
419	! Read only namelist_cfg to avoid unseccessfull overwrite
420	!! REWIND( numnam_ref ) ! Namelist nambdy_index in reference namelist : Open boundaries indexes
421	!! READ ( numnam_ref, namrun, IOSTAT = ios, ERR = 903)
422	!!903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in reference namelist', lwp )
423
424	!! REWIND( numnam_cfg ) ! Namelist nambdy_index in configuration namelist : Open boundaries indexes
425	READ ( numnam_cfg, nambdy_index, IOSTAT = ios, ERR = 904 )
426	904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_index in configuration namelist', lwp )
427	IF(lwm) WRITE ( numond, nambdy_index )
428
429	SELECT CASE ( TRIM(ctypebdy) )
430	CASE( 'N' )
431	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
432	nbdyind = jpjglo - 2 ! set boundary to whole side of model domain.
433	nbdybeg = 2
434	nbdyend = jpiglo - 1
435	ENDIF
436	nbdysegn = nbdysegn + 1
437	npckgn(nbdysegn) = ib_bdy ! Save bdy package number
438	jpjnob(nbdysegn) = nbdyind
439	jpindt(nbdysegn) = nbdybeg
440	jpinft(nbdysegn) = nbdyend
441	!
442	CASE( 'S' )
443	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
444	nbdyind = 2 ! set boundary to whole side of model domain.
445	nbdybeg = 2
446	nbdyend = jpiglo - 1
447	ENDIF
448	nbdysegs = nbdysegs + 1
449	npckgs(nbdysegs) = ib_bdy ! Save bdy package number
450	jpjsob(nbdysegs) = nbdyind
451	jpisdt(nbdysegs) = nbdybeg
452	jpisft(nbdysegs) = nbdyend
453	!
454	CASE( 'E' )
455	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
456	nbdyind = jpiglo - 2 ! set boundary to whole side of model domain.
457	nbdybeg = 2
458	nbdyend = jpjglo - 1
459	ENDIF
460	nbdysege = nbdysege + 1
461	npckge(nbdysege) = ib_bdy ! Save bdy package number
462	jpieob(nbdysege) = nbdyind
463	jpjedt(nbdysege) = nbdybeg
464	jpjeft(nbdysege) = nbdyend
465	!
466	CASE( 'W' )
467	IF( nbdyind == -1 ) THEN ! Automatic boundary definition: if nbdysegX = -1
468	nbdyind = 2 ! set boundary to whole side of model domain.
469	nbdybeg = 2
470	nbdyend = jpjglo - 1
471	ENDIF
472	nbdysegw = nbdysegw + 1
473	npckgw(nbdysegw) = ib_bdy ! Save bdy package number
474	jpiwob(nbdysegw) = nbdyind
475	jpjwdt(nbdysegw) = nbdybeg
476	jpjwft(nbdysegw) = nbdyend
477	!
478	CASE DEFAULT ; CALL ctl_stop( 'ctypebdy must be N, S, E or W' )
479	END SELECT
480
481	! For simplicity we assume that in case of straight bdy, arrays have the same length
482	! (even if it is true that last tangential velocity points
483	! are useless). This simplifies a little bit boundary data format (and agrees with format
484	! used so far in obc package)
485
486	nblendta(1:jpbgrd,ib_bdy) = (nbdyend - nbdybeg + 1) * nn_rimwidth(ib_bdy)
487	jpbdtas = MAX(jpbdtas, (nbdyend - nbdybeg + 1))
488	IF (lwp.and.(nn_rimwidth(ib_bdy)>nrimmax)) &
489	& CALL ctl_stop( 'rimwidth must be lower than nrimmax' )
490
491	ELSE ! Read size of arrays in boundary coordinates file.
492	CALL iom_open( cn_coords_file(ib_bdy), inum )
493	DO igrd = 1, jpbgrd
494	id_dummy = iom_varid( inum, 'nbi'//cgrid(igrd), kdimsz=kdimsz )
495	!clem nblendta(igrd,ib_bdy) = kdimsz(1)
496	!clem jpbdtau = MAX(jpbdtau, kdimsz(1))
497	nblendta(igrd,ib_bdy) = MAXVAL(kdimsz)
498	jpbdtau = MAX(jpbdtau, MAXVAL(kdimsz))
499	ENDDO
500	CALL iom_close( inum )
501
502	ENDIF
503
504	ENDDO ! ib_bdy
505
506	IF (nb_bdy>0) THEN
507	jpbdta = MAXVAL(nblendta(1:jpbgrd,1:nb_bdy))
508
509	! Allocate arrays
510	!---------------
511	ALLOCATE( nbidta(jpbdta, jpbgrd, nb_bdy), nbjdta(jpbdta, jpbgrd, nb_bdy), &
512	& nbrdta(jpbdta, jpbgrd, nb_bdy) )
513
514	IF( nb_jpk_bdy>0 ) THEN
515	ALLOCATE( dta_global(jpbdtau, 1, nb_jpk_bdy) )
516	ALLOCATE( dta_global_z(jpbdtau, 1, nb_jpk_bdy) )
517	ELSE
518	ALLOCATE( dta_global(jpbdtau, 1, jpk) )
519	ALLOCATE( dta_global_z(jpbdtau, 1, jpk) )
520	ENDIF
521
522	IF ( icount>0 ) THEN
523	IF( nb_jpk_bdy>0 ) THEN
524	ALLOCATE( dta_global2(jpbdtas, nrimmax, nb_jpk_bdy) )
525	ALLOCATE( dta_global2_z(jpbdtas, nrimmax, nb_jpk_bdy) )
526	ELSE
527	ALLOCATE( dta_global2(jpbdtas, nrimmax, jpk) )
528	ALLOCATE( dta_global2_z(jpbdtas, nrimmax, jpk) )
529	ENDIF
530	ENDIF
531	!
532	ENDIF
533
534	! Now look for crossings in user (namelist) defined open boundary segments:
535	!--------------------------------------------------------------------------
536	IF ( icount>0 ) CALL bdy_ctl_seg
537
538	! Calculate global boundary index arrays or read in from file
539	!------------------------------------------------------------
540	! 1. Read global index arrays from boundary coordinates file.
541	DO ib_bdy = 1, nb_bdy
542
543	IF( ln_coords_file(ib_bdy) ) THEN
544
545	CALL iom_open( cn_coords_file(ib_bdy), inum )
546	DO igrd = 1, jpbgrd
547	CALL iom_get( inum, jpdom_unknown, 'nbi'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
548	DO ii = 1,nblendta(igrd,ib_bdy)
549	nbidta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
550	END DO
551	CALL iom_get( inum, jpdom_unknown, 'nbj'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
552	DO ii = 1,nblendta(igrd,ib_bdy)
553	nbjdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
554	END DO
555	CALL iom_get( inum, jpdom_unknown, 'nbr'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) )
556	DO ii = 1,nblendta(igrd,ib_bdy)
557	nbrdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) )
558	END DO
559
560	ibr_max = MAXVAL( nbrdta(:,igrd,ib_bdy) )
561	IF(lwp) WRITE(numout,*)
562	IF(lwp) WRITE(numout,*) ' Maximum rimwidth in file is ', ibr_max
563	IF(lwp) WRITE(numout,*) ' nn_rimwidth from namelist is ', nn_rimwidth(ib_bdy)
564	IF (ibr_max < nn_rimwidth(ib_bdy)) &
565	CALL ctl_stop( 'nn_rimwidth is larger than maximum rimwidth in file',cn_coords_file(ib_bdy) )
566	END DO
567	CALL iom_close( inum )
568
569	ENDIF
570
571	ENDDO
572
573	! 2. Now fill indices corresponding to straight open boundary arrays:
574	! East
575	!-----
576	DO iseg = 1, nbdysege
577	ib_bdy = npckge(iseg)
578	!
579	! ------------ T points -------------
580	igrd=1
581	icount=0
582	DO ir = 1, nn_rimwidth(ib_bdy)
583	DO ij = jpjedt(iseg), jpjeft(iseg)
584	icount = icount + 1
585	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
586	nbjdta(icount, igrd, ib_bdy) = ij
587	nbrdta(icount, igrd, ib_bdy) = ir
588	ENDDO
589	ENDDO
590	!
591	! ------------ U points -------------
592	igrd=2
593	icount=0
594	DO ir = 1, nn_rimwidth(ib_bdy)
595	DO ij = jpjedt(iseg), jpjeft(iseg)
596	icount = icount + 1
597	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 1 - ir
598	nbjdta(icount, igrd, ib_bdy) = ij
599	nbrdta(icount, igrd, ib_bdy) = ir
600	ENDDO
601	ENDDO
602	!
603	! ------------ V points -------------
604	igrd=3
605	icount=0
606	DO ir = 1, nn_rimwidth(ib_bdy)
607	! DO ij = jpjedt(iseg), jpjeft(iseg) - 1
608	DO ij = jpjedt(iseg), jpjeft(iseg)
609	icount = icount + 1
610	nbidta(icount, igrd, ib_bdy) = jpieob(iseg) + 2 - ir
611	nbjdta(icount, igrd, ib_bdy) = ij
612	nbrdta(icount, igrd, ib_bdy) = ir
613	ENDDO
614	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
615	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
616	ENDDO
617	ENDDO
618	!
619	! West
620	!-----
621	DO iseg = 1, nbdysegw
622	ib_bdy = npckgw(iseg)
623	!
624	! ------------ T points -------------
625	igrd=1
626	icount=0
627	DO ir = 1, nn_rimwidth(ib_bdy)
628	DO ij = jpjwdt(iseg), jpjwft(iseg)
629	icount = icount + 1
630	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
631	nbjdta(icount, igrd, ib_bdy) = ij
632	nbrdta(icount, igrd, ib_bdy) = ir
633	ENDDO
634	ENDDO
635	!
636	! ------------ U points -------------
637	igrd=2
638	icount=0
639	DO ir = 1, nn_rimwidth(ib_bdy)
640	DO ij = jpjwdt(iseg), jpjwft(iseg)
641	icount = icount + 1
642	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
643	nbjdta(icount, igrd, ib_bdy) = ij
644	nbrdta(icount, igrd, ib_bdy) = ir
645	ENDDO
646	ENDDO
647	!
648	! ------------ V points -------------
649	igrd=3
650	icount=0
651	DO ir = 1, nn_rimwidth(ib_bdy)
652	! DO ij = jpjwdt(iseg), jpjwft(iseg) - 1
653	DO ij = jpjwdt(iseg), jpjwft(iseg)
654	icount = icount + 1
655	nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1
656	nbjdta(icount, igrd, ib_bdy) = ij
657	nbrdta(icount, igrd, ib_bdy) = ir
658	ENDDO
659	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
660	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
661	ENDDO
662	ENDDO
663	!
664	! North
665	!-----
666	DO iseg = 1, nbdysegn
667	ib_bdy = npckgn(iseg)
668	!
669	! ------------ T points -------------
670	igrd=1
671	icount=0
672	DO ir = 1, nn_rimwidth(ib_bdy)
673	DO ii = jpindt(iseg), jpinft(iseg)
674	icount = icount + 1
675	nbidta(icount, igrd, ib_bdy) = ii
676	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
677	nbrdta(icount, igrd, ib_bdy) = ir
678	ENDDO
679	ENDDO
680	!
681	! ------------ U points -------------
682	igrd=2
683	icount=0
684	DO ir = 1, nn_rimwidth(ib_bdy)
685	! DO ii = jpindt(iseg), jpinft(iseg) - 1
686	DO ii = jpindt(iseg), jpinft(iseg)
687	icount = icount + 1
688	nbidta(icount, igrd, ib_bdy) = ii
689	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 2 - ir
690	nbrdta(icount, igrd, ib_bdy) = ir
691	ENDDO
692	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
693	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
694	ENDDO
695	!
696	! ------------ V points -------------
697	igrd=3
698	icount=0
699	DO ir = 1, nn_rimwidth(ib_bdy)
700	DO ii = jpindt(iseg), jpinft(iseg)
701	icount = icount + 1
702	nbidta(icount, igrd, ib_bdy) = ii
703	nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) + 1 - ir
704	nbrdta(icount, igrd, ib_bdy) = ir
705	ENDDO
706	ENDDO
707	ENDDO
708	!
709	! South
710	!-----
711	DO iseg = 1, nbdysegs
712	ib_bdy = npckgs(iseg)
713	!
714	! ------------ T points -------------
715	igrd=1
716	icount=0
717	DO ir = 1, nn_rimwidth(ib_bdy)
718	DO ii = jpisdt(iseg), jpisft(iseg)
719	icount = icount + 1
720	nbidta(icount, igrd, ib_bdy) = ii
721	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
722	nbrdta(icount, igrd, ib_bdy) = ir
723	ENDDO
724	ENDDO
725	!
726	! ------------ U points -------------
727	igrd=2
728	icount=0
729	DO ir = 1, nn_rimwidth(ib_bdy)
730	! DO ii = jpisdt(iseg), jpisft(iseg) - 1
731	DO ii = jpisdt(iseg), jpisft(iseg)
732	icount = icount + 1
733	nbidta(icount, igrd, ib_bdy) = ii
734	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
735	nbrdta(icount, igrd, ib_bdy) = ir
736	ENDDO
737	nbidta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
738	nbjdta(icount, igrd, ib_bdy) = -ib_bdy ! Discount this point
739	ENDDO
740	!
741	! ------------ V points -------------
742	igrd=3
743	icount=0
744	DO ir = 1, nn_rimwidth(ib_bdy)
745	DO ii = jpisdt(iseg), jpisft(iseg)
746	icount = icount + 1
747	nbidta(icount, igrd, ib_bdy) = ii
748	nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1
749	nbrdta(icount, igrd, ib_bdy) = ir
750	ENDDO
751	ENDDO
752	ENDDO
753
754	! Deal with duplicated points
755	!-----------------------------
756	! We assign negative indices to duplicated points (to remove them from bdy points to be updated)
757	! if their distance to the bdy is greater than the other
758	! If their distance are the same, just keep only one to avoid updating a point twice
759	DO igrd = 1, jpbgrd
760	DO ib_bdy1 = 1, nb_bdy
761	DO ib_bdy2 = 1, nb_bdy
762	IF (ib_bdy1/=ib_bdy2) THEN
763	DO ib1 = 1, nblendta(igrd,ib_bdy1)
764	DO ib2 = 1, nblendta(igrd,ib_bdy2)
765	IF ((nbidta(ib1, igrd, ib_bdy1)==nbidta(ib2, igrd, ib_bdy2)).AND. &
766	& (nbjdta(ib1, igrd, ib_bdy1)==nbjdta(ib2, igrd, ib_bdy2))) THEN
767	! IF ((lwp).AND.(igrd==1)) WRITE(numout,*) ' found coincident point ji, jj:', &
768	! & nbidta(ib1, igrd, ib_bdy1), &
769	! & nbjdta(ib2, igrd, ib_bdy2)
770	! keep only points with the lowest distance to boundary:
771	IF (nbrdta(ib1, igrd, ib_bdy1)<nbrdta(ib2, igrd, ib_bdy2)) THEN
772	nbidta(ib2, igrd, ib_bdy2) =-ib_bdy2
773	nbjdta(ib2, igrd, ib_bdy2) =-ib_bdy2
774	ELSEIF (nbrdta(ib1, igrd, ib_bdy1)>nbrdta(ib2, igrd, ib_bdy2)) THEN
775	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
776	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
777	! Arbitrary choice if distances are the same:
778	ELSE
779	nbidta(ib1, igrd, ib_bdy1) =-ib_bdy1
780	nbjdta(ib1, igrd, ib_bdy1) =-ib_bdy1
781	ENDIF
782	END IF
783	END DO
784	END DO
785	ENDIF
786	END DO
787	END DO
788	END DO
789
790	! Work out dimensions of boundary data on each processor
791	! ------------------------------------------------------
792
793	! Rather assume that boundary data indices are given on global domain
794	! TO BE DISCUSSED ?
795	! iw = mig(1) + 1 ! if monotasking and no zoom, iw=2
796	! ie = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1
797	! is = mjg(1) + 1 ! if monotasking and no zoom, is=2
798	! in = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1
799	iw = mig(1) - jpizoom + 2 ! if monotasking and no zoom, iw=2
800	ie = mig(1) + nlci - jpizoom - 1 ! if monotasking and no zoom, ie=jpim1
801	is = mjg(1) - jpjzoom + 2 ! if monotasking and no zoom, is=2
802	in = mjg(1) + nlcj - jpjzoom - 1 ! if monotasking and no zoom, in=jpjm1
803
804	ALLOCATE( nbondi_bdy(nb_bdy))
805	ALLOCATE( nbondj_bdy(nb_bdy))
806	nbondi_bdy(:)=2
807	nbondj_bdy(:)=2
808	ALLOCATE( nbondi_bdy_b(nb_bdy))
809	ALLOCATE( nbondj_bdy_b(nb_bdy))
810	nbondi_bdy_b(:)=2
811	nbondj_bdy_b(:)=2
812
813	! Work out dimensions of boundary data on each neighbour process
814	IF(nbondi .eq. 0) THEN
815	iw_b(1) = jpizoom + nimppt(nowe+1)
816	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
817	is_b(1) = jpjzoom + njmppt(nowe+1)
818	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
819
820	iw_b(2) = jpizoom + nimppt(noea+1)
821	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
822	is_b(2) = jpjzoom + njmppt(noea+1)
823	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
824	ELSEIF(nbondi .eq. 1) THEN
825	iw_b(1) = jpizoom + nimppt(nowe+1)
826	ie_b(1) = jpizoom + nimppt(nowe+1)+nlcit(nowe+1)-3
827	is_b(1) = jpjzoom + njmppt(nowe+1)
828	in_b(1) = jpjzoom + njmppt(nowe+1)+nlcjt(nowe+1)-3
829	ELSEIF(nbondi .eq. -1) THEN
830	iw_b(2) = jpizoom + nimppt(noea+1)
831	ie_b(2) = jpizoom + nimppt(noea+1)+nlcit(noea+1)-3
832	is_b(2) = jpjzoom + njmppt(noea+1)
833	in_b(2) = jpjzoom + njmppt(noea+1)+nlcjt(noea+1)-3
834	ENDIF
835
836	IF(nbondj .eq. 0) THEN
837	iw_b(3) = jpizoom + nimppt(noso+1)
838	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
839	is_b(3) = jpjzoom + njmppt(noso+1)
840	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
841
842	iw_b(4) = jpizoom + nimppt(nono+1)
843	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
844	is_b(4) = jpjzoom + njmppt(nono+1)
845	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
846	ELSEIF(nbondj .eq. 1) THEN
847	iw_b(3) = jpizoom + nimppt(noso+1)
848	ie_b(3) = jpizoom + nimppt(noso+1)+nlcit(noso+1)-3
849	is_b(3) = jpjzoom + njmppt(noso+1)
850	in_b(3) = jpjzoom + njmppt(noso+1)+nlcjt(noso+1)-3
851	ELSEIF(nbondj .eq. -1) THEN
852	iw_b(4) = jpizoom + nimppt(nono+1)
853	ie_b(4) = jpizoom + nimppt(nono+1)+nlcit(nono+1)-3
854	is_b(4) = jpjzoom + njmppt(nono+1)
855	in_b(4) = jpjzoom + njmppt(nono+1)+nlcjt(nono+1)-3
856	ENDIF
857
858	DO ib_bdy = 1, nb_bdy
859	DO igrd = 1, jpbgrd
860	icount = 0
861	icountr = 0
862	idx_bdy(ib_bdy)%nblen(igrd) = 0
863	idx_bdy(ib_bdy)%nblenrim(igrd) = 0
864	DO ib = 1, nblendta(igrd,ib_bdy)
865	! check that data is in correct order in file
866	ibm1 = MAX(1,ib-1)
867	IF(lwp) THEN ! Since all procs read global data only need to do this check on one proc...
868	IF( nbrdta(ib,igrd,ib_bdy) < nbrdta(ibm1,igrd,ib_bdy) ) THEN
869	CALL ctl_stop('bdy_init : ERROR : boundary data in file must be defined ', &
870	& ' in order of distance from edge nbr A utility for re-ordering ', &
871	& ' boundary coordinates and data files exists in the TOOLS/OBC directory')
872	ENDIF
873	ENDIF
874	! check if point is in local domain
875	IF( nbidta(ib,igrd,ib_bdy) >= iw .AND. nbidta(ib,igrd,ib_bdy) <= ie .AND. &
876	& nbjdta(ib,igrd,ib_bdy) >= is .AND. nbjdta(ib,igrd,ib_bdy) <= in ) THEN
877	!
878	icount = icount + 1
879	!
880	IF( nbrdta(ib,igrd,ib_bdy) == 1 ) icountr = icountr+1
881	ENDIF
882	ENDDO
883	idx_bdy(ib_bdy)%nblenrim(igrd) = icountr !: length of rim boundary data on each proc
884	idx_bdy(ib_bdy)%nblen (igrd) = icount !: length of boundary data on each proc
885	ENDDO ! igrd
886
887	! Allocate index arrays for this boundary set
888	!--------------------------------------------
889	ilen1 = MAXVAL(idx_bdy(ib_bdy)%nblen(:))
890	ALLOCATE( idx_bdy(ib_bdy)%nbi(ilen1,jpbgrd) )
891	ALLOCATE( idx_bdy(ib_bdy)%nbj(ilen1,jpbgrd) )
892	ALLOCATE( idx_bdy(ib_bdy)%nbr(ilen1,jpbgrd) )
893	ALLOCATE( idx_bdy(ib_bdy)%nbd(ilen1,jpbgrd) )
894	ALLOCATE( idx_bdy(ib_bdy)%nbdout(ilen1,jpbgrd) )
895	ALLOCATE( idx_bdy(ib_bdy)%nbmap(ilen1,jpbgrd) )
896	ALLOCATE( idx_bdy(ib_bdy)%nbw(ilen1,jpbgrd) )
897	ALLOCATE( idx_bdy(ib_bdy)%flagu(ilen1,jpbgrd) )
898	ALLOCATE( idx_bdy(ib_bdy)%flagv(ilen1,jpbgrd) )
899
900	! Dispatch mapping indices and discrete distances on each processor
901	! -----------------------------------------------------------------
902
903	com_east = 0
904	com_west = 0
905	com_south = 0
906	com_north = 0
907
908	com_east_b = 0
909	com_west_b = 0
910	com_south_b = 0
911	com_north_b = 0
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) >= iw .AND. nbidta(ib,igrd,ib_bdy) <= ie .AND. &
919	& nbjdta(ib,igrd,ib_bdy) >= is .AND. nbjdta(ib,igrd,ib_bdy) <= in .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	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	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	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	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	#else
1784	!!---------------------------------------------------------------------------------
1785	!! Dummy module NO open boundaries
1786	!!---------------------------------------------------------------------------------
1787	CONTAINS
1788	SUBROUTINE bdy_init ! Dummy routine
1789	END SUBROUTINE bdy_init
1790	#endif
1791
1792	!!=================================================================================
1793	END MODULE bdyini

Note: See TracBrowser for help on using the repository browser.

Download in other formats: