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bdydta.F90 in branches/2013/dev_LOCEAN_CMCC_INGV_2013/NEMOGCM/NEMO/OPA_SRC/BDY – NEMO

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source: branches/2013/dev_LOCEAN_CMCC_INGV_2013/NEMOGCM/NEMO/OPA_SRC/BDY/bdydta.F90 @ 4291

Last change on this file since 4291 was 4230, checked in by cetlod, 10 years ago
dev_LOCEAN_CMCC_INGV_2013 : merge LOCEAN & CMCC_INGV branches, see ticket #1182
Property svn:keywords set to `Id`
File size: 31.2 KB

Rev	Line
[911]	1	MODULE bdydta
[1125]	2	!!======================================================================
	3	!! * MODULE bdydta *
[911]	4	!! Open boundary data : read the data for the unstructured open boundaries.
[1125]	5	!!======================================================================
	6	!! History : 1.0 ! 2005-01 (J. Chanut, A. Sellar) Original code
	7	!! - ! 2007-01 (D. Storkey) Update to use IOM module
[2528]	8	!! - ! 2007-07 (D. Storkey) add bdy_dta_fla
[1125]	9	!! 3.0 ! 2008-04 (NEMO team) add in the reference version
[2528]	10	!! 3.3 ! 2010-09 (E.O'Dea) modifications for Shelf configurations
	11	!! 3.3 ! 2010-09 (D.Storkey) add ice boundary conditions
[3294]	12	!! 3.4 ! 2011 (D. Storkey) rewrite in preparation for OBC-BDY merge
[1125]	13	!!----------------------------------------------------------------------
	14	#if defined key_bdy
	15	!!----------------------------------------------------------------------
[3294]	16	!! 'key_bdy' Open Boundary Conditions
[1125]	17	!!----------------------------------------------------------------------
[3294]	18	!! bdy_dta : read external data along open boundaries from file
	19	!! bdy_dta_init : initialise arrays etc for reading of external data
[1125]	20	!!----------------------------------------------------------------------
[3294]	21	USE wrk_nemo ! Memory Allocation
	22	USE timing ! Timing
[911]	23	USE oce ! ocean dynamics and tracers
	24	USE dom_oce ! ocean space and time domain
	25	USE phycst ! physical constants
[3294]	26	USE bdy_oce ! ocean open boundary conditions
[911]	27	USE bdytides ! tidal forcing at boundaries
[3294]	28	USE fldread ! read input fields
	29	USE iom ! IOM library
[911]	30	USE in_out_manager ! I/O logical units
[2528]	31	#if defined key_lim2
	32	USE ice_2
	33	#endif
[3651]	34	USE sbcapr
[911]	35
	36	IMPLICIT NONE
	37	PRIVATE
	38
[3294]	39	PUBLIC bdy_dta ! routine called by step.F90 and dynspg_ts.F90
	40	PUBLIC bdy_dta_init ! routine called by nemogcm.F90
[911]	41
[3294]	42	INTEGER, ALLOCATABLE, DIMENSION(:) :: nb_bdy_fld ! Number of fields to update for each boundary set.
	43	INTEGER :: nb_bdy_fld_sum ! Total number of fields to update for all boundary sets.
[911]	44
[3294]	45	LOGICAL, DIMENSION(jp_bdy) :: ln_full_vel_array ! =T => full velocities in 3D boundary conditions
	46	! =F => baroclinic velocities in 3D boundary conditions
[911]	47
[3294]	48	TYPE(FLD), PUBLIC, ALLOCATABLE, DIMENSION(:), TARGET :: bf ! structure of input fields (file informations, fields read)
[911]	49
[3294]	50	TYPE(MAP_POINTER), ALLOCATABLE, DIMENSION(:) :: nbmap_ptr ! array of pointers to nbmap
[911]	51
[3294]	52	# include "domzgr_substitute.h90"
[1125]	53	!!----------------------------------------------------------------------
[2528]	54	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
[1146]	55	!! $Id$
[2528]	56	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[1125]	57	!!----------------------------------------------------------------------
[911]	58	CONTAINS
	59
[3294]	60	SUBROUTINE bdy_dta( kt, jit, time_offset )
[1125]	61	!!----------------------------------------------------------------------
[3294]	62	!! * SUBROUTINE bdy_dta *
[911]	63	!!
[3294]	64	!! ** Purpose : Update external data for open boundary conditions
[911]	65	!!
[3294]	66	!! ** Method : Use fldread.F90
	67	!!
[1125]	68	!!----------------------------------------------------------------------
[911]	69	!!
[3294]	70	INTEGER, INTENT( in ) :: kt ! ocean time-step index
	71	INTEGER, INTENT( in ), OPTIONAL :: jit ! subcycle time-step index (for timesplitting option)
	72	INTEGER, INTENT( in ), OPTIONAL :: time_offset ! time offset in units of timesteps. NB. if jit
	73	! is present then units = subcycle timesteps.
	74	! time_offset = 0 => get data at "now" time level
	75	! time_offset = -1 => get data at "before" time level
	76	! time_offset = +1 => get data at "after" time level
	77	! etc.
	78	!!
	79	INTEGER :: ib_bdy, jfld, jstart, jend, ib, ii, ij, ik, igrd ! local indices
	80	INTEGER, DIMENSION(jpbgrd) :: ilen1
	81	INTEGER, POINTER, DIMENSION(:) :: nblen, nblenrim ! short cuts
	82	!!
[911]	83	!!---------------------------------------------------------------------------
[3294]	84	!!
	85	IF( nn_timing == 1 ) CALL timing_start('bdy_dta')
[911]	86
[3294]	87	! Initialise data arrays once for all from initial conditions where required
	88	!---------------------------------------------------------------------------
	89	IF( kt .eq. nit000 .and. .not. PRESENT(jit) ) THEN
[1125]	90
[3294]	91	! Calculate depth-mean currents
	92	!-----------------------------
	93	CALL wrk_alloc(jpi,jpj,pu2d,pv2d)
[2528]	94
[3294]	95	pu2d(:,:) = 0.e0
	96	pv2d(:,:) = 0.e0
[911]	97
[3294]	98	DO ik = 1, jpkm1 !! Vertically integrated momentum trends
	99	pu2d(:,:) = pu2d(:,:) + fse3u(:,:,ik) * umask(:,:,ik) * un(:,:,ik)
	100	pv2d(:,:) = pv2d(:,:) + fse3v(:,:,ik) * vmask(:,:,ik) * vn(:,:,ik)
	101	END DO
	102	pu2d(:,:) = pu2d(:,:) * hur(:,:)
	103	pv2d(:,:) = pv2d(:,:) * hvr(:,:)
	104
	105	DO ib_bdy = 1, nb_bdy
[911]	106
[3294]	107	nblen => idx_bdy(ib_bdy)%nblen
	108	nblenrim => idx_bdy(ib_bdy)%nblenrim
[2528]	109
[3294]	110	IF( nn_dyn2d(ib_bdy) .gt. 0 .and. nn_dyn2d_dta(ib_bdy) .eq. 0 ) THEN
[3651]	111	ilen1(:) = nblen(:)
[3294]	112	igrd = 1
	113	DO ib = 1, ilen1(igrd)
	114	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	115	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	116	dta_bdy(ib_bdy)%ssh(ib) = sshn(ii,ij) * tmask(ii,ij,1)
	117	END DO
	118	igrd = 2
	119	DO ib = 1, ilen1(igrd)
	120	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	121	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	122	dta_bdy(ib_bdy)%u2d(ib) = pu2d(ii,ij) * umask(ii,ij,1)
	123	END DO
	124	igrd = 3
	125	DO ib = 1, ilen1(igrd)
	126	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	127	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	128	dta_bdy(ib_bdy)%v2d(ib) = pv2d(ii,ij) * vmask(ii,ij,1)
	129	END DO
	130	ENDIF
[911]	131
[3294]	132	IF( nn_dyn3d(ib_bdy) .gt. 0 .and. nn_dyn3d_dta(ib_bdy) .eq. 0 ) THEN
[3651]	133	ilen1(:) = nblen(:)
[3294]	134	igrd = 2
	135	DO ib = 1, ilen1(igrd)
	136	DO ik = 1, jpkm1
	137	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	138	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	139	dta_bdy(ib_bdy)%u3d(ib,ik) = ( un(ii,ij,ik) - pu2d(ii,ij) ) * umask(ii,ij,ik)
	140	END DO
	141	END DO
	142	igrd = 3
	143	DO ib = 1, ilen1(igrd)
	144	DO ik = 1, jpkm1
	145	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	146	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	147	dta_bdy(ib_bdy)%v3d(ib,ik) = ( vn(ii,ij,ik) - pv2d(ii,ij) ) * vmask(ii,ij,ik)
	148	END DO
	149	END DO
	150	ENDIF
[911]	151
[3294]	152	IF( nn_tra(ib_bdy) .gt. 0 .and. nn_tra_dta(ib_bdy) .eq. 0 ) THEN
[3651]	153	ilen1(:) = nblen(:)
[3294]	154	igrd = 1 ! Everything is at T-points here
	155	DO ib = 1, ilen1(igrd)
	156	DO ik = 1, jpkm1
	157	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	158	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	159	dta_bdy(ib_bdy)%tem(ib,ik) = tsn(ii,ij,ik,jp_tem) * tmask(ii,ij,ik)
	160	dta_bdy(ib_bdy)%sal(ib,ik) = tsn(ii,ij,ik,jp_sal) * tmask(ii,ij,ik)
	161	END DO
	162	END DO
	163	ENDIF
[911]	164
[3294]	165	#if defined key_lim2
	166	IF( nn_ice_lim2(ib_bdy) .gt. 0 .and. nn_ice_lim2_dta(ib_bdy) .eq. 0 ) THEN
[3651]	167	ilen1(:) = nblen(:)
[3294]	168	igrd = 1 ! Everything is at T-points here
	169	DO ib = 1, ilen1(igrd)
	170	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	171	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	172	dta_bdy(ib_bdy)%frld(ib) = frld(ii,ij) * tmask(ii,ij,1)
	173	dta_bdy(ib_bdy)%hicif(ib) = hicif(ii,ij) * tmask(ii,ij,1)
	174	dta_bdy(ib_bdy)%hsnif(ib) = hsnif(ii,ij) * tmask(ii,ij,1)
	175	END DO
[1125]	176	ENDIF
[3294]	177	#endif
[911]	178
[3294]	179	ENDDO ! ib_bdy
[911]	180
[3294]	181	CALL wrk_dealloc(jpi,jpj,pu2d,pv2d)
[911]	182
[3294]	183	ENDIF ! kt .eq. nit000
[911]	184
[3294]	185	! update external data from files
	186	!--------------------------------
	187
	188	jstart = 1
	189	DO ib_bdy = 1, nb_bdy
	190	IF( nn_dta(ib_bdy) .eq. 1 ) THEN ! skip this bit if no external data required
	191
	192	IF( PRESENT(jit) ) THEN
	193	! Update barotropic boundary conditions only
[3651]	194	! jit is optional argument for fld_read and bdytide_update
[3294]	195	IF( nn_dyn2d(ib_bdy) .gt. 0 ) THEN
	196	IF( nn_dyn2d_dta(ib_bdy) .eq. 2 ) THEN ! tidal harmonic forcing ONLY: initialise arrays
	197	dta_bdy(ib_bdy)%ssh(:) = 0.0
	198	dta_bdy(ib_bdy)%u2d(:) = 0.0
	199	dta_bdy(ib_bdy)%v2d(:) = 0.0
	200	ENDIF
[3651]	201	IF (nn_tra(ib_bdy).ne.4) THEN
[3703]	202	IF( nn_dyn2d_dta(ib_bdy) .EQ. 1 .OR. nn_dyn2d_dta(ib_bdy) .EQ. 3 .OR. &
	203	& (ln_full_vel_array(ib_bdy) .AND. nn_dyn3d_dta(ib_bdy).eq.1) )THEN
	204
[3651]	205	! For the runoff case, no need to update the forcing (already done in the baroclinic part)
	206	jend = nb_bdy_fld(ib_bdy)
	207	IF ( nn_tra(ib_bdy) .GT. 0 .AND. nn_tra_dta(ib_bdy) .GE. 1 ) jend = jend - 2
[3703]	208	CALL fld_read( kt=kt, kn_fsbc=1, sd=bf(jstart:jend), map=nbmap_ptr(jstart:jend), &
[3851]	209	& kit=jit, kt_offset=time_offset )
[3651]	210	IF ( nn_tra(ib_bdy) .GT. 0 .AND. nn_tra_dta(ib_bdy) .GE. 1 ) jend = jend + 2
[3703]	211
[3651]	212	! If full velocities in boundary data then split into barotropic and baroclinic data
[3703]	213	IF( ln_full_vel_array(ib_bdy) .AND. &
	214	& ( nn_dyn2d_dta(ib_bdy) .EQ. 1 .OR. nn_dyn2d_dta(ib_bdy) .EQ. 3 .OR. &
	215	& nn_dyn3d_dta(ib_bdy) .EQ. 1 ) )THEN
	216
[3651]	217	igrd = 2 ! zonal velocity
	218	dta_bdy(ib_bdy)%u2d(:) = 0.0
	219	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
	220	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	221	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	222	DO ik = 1, jpkm1
	223	dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) &
	224	& + fse3u(ii,ij,ik) * umask(ii,ij,ik) * dta_bdy(ib_bdy)%u3d(ib,ik)
	225	END DO
	226	dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) * hur(ii,ij)
	227	DO ik = 1, jpkm1
	228	dta_bdy(ib_bdy)%u3d(ib,ik) = dta_bdy(ib_bdy)%u3d(ib,ik) - dta_bdy(ib_bdy)%u2d(ib)
	229	END DO
	230	END DO
	231	igrd = 3 ! meridional velocity
	232	dta_bdy(ib_bdy)%v2d(:) = 0.0
	233	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
	234	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	235	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	236	DO ik = 1, jpkm1
	237	dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) &
	238	& + fse3v(ii,ij,ik) * vmask(ii,ij,ik) * dta_bdy(ib_bdy)%v3d(ib,ik)
	239	END DO
	240	dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) * hvr(ii,ij)
	241	DO ik = 1, jpkm1
	242	dta_bdy(ib_bdy)%v3d(ib,ik) = dta_bdy(ib_bdy)%v3d(ib,ik) - dta_bdy(ib_bdy)%v2d(ib)
	243	END DO
	244	END DO
	245	ENDIF
	246	ENDIF
	247	IF( nn_dyn2d_dta(ib_bdy) .ge. 2 ) THEN ! update tidal harmonic forcing
	248	CALL bdytide_update( kt=kt, idx=idx_bdy(ib_bdy), dta=dta_bdy(ib_bdy), td=tides(ib_bdy), &
	249	& jit=jit, time_offset=time_offset )
	250	ENDIF
[3294]	251	ENDIF
[1125]	252	ENDIF
[3294]	253	ELSE
[3651]	254	IF (nn_tra(ib_bdy).eq.4) then ! runoff condition
	255	jend = nb_bdy_fld(ib_bdy)
[3703]	256	CALL fld_read( kt=kt, kn_fsbc=1, sd=bf(jstart:jend), &
[3851]	257	& map=nbmap_ptr(jstart:jend), kt_offset=time_offset )
[3651]	258	!
	259	igrd = 2 ! zonal velocity
	260	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
	261	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	262	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	263	dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) / ( e2u(ii,ij) * hu_0(ii,ij) )
	264	END DO
	265	!
	266	igrd = 3 ! meridional velocity
	267	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
	268	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	269	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	270	dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) / ( e1v(ii,ij) * hv_0(ii,ij) )
	271	END DO
	272	ELSE
	273	IF( nn_dyn2d(ib_bdy) .gt. 0 .and. nn_dyn2d_dta(ib_bdy) .eq. 2 ) THEN ! tidal harmonic forcing ONLY: initialise arrays
	274	dta_bdy(ib_bdy)%ssh(:) = 0.0
	275	dta_bdy(ib_bdy)%u2d(:) = 0.0
	276	dta_bdy(ib_bdy)%v2d(:) = 0.0
	277	ENDIF
	278	IF( nb_bdy_fld(ib_bdy) .gt. 0 ) THEN ! update external data
	279	jend = nb_bdy_fld(ib_bdy)
[3703]	280	CALL fld_read( kt=kt, kn_fsbc=1, sd=bf(jstart:jend), &
[3851]	281	& map=nbmap_ptr(jstart:jend), kt_offset=time_offset )
[3651]	282	ENDIF
	283	! If full velocities in boundary data then split into barotropic and baroclinic data
	284	IF( ln_full_vel_array(ib_bdy) .and. &
[3703]	285	& ( nn_dyn2d_dta(ib_bdy) .EQ. 1 .OR. nn_dyn2d_dta(ib_bdy) .EQ. 3 .OR. &
	286	& nn_dyn3d_dta(ib_bdy) .EQ. 1 ) ) THEN
[3651]	287	igrd = 2 ! zonal velocity
	288	dta_bdy(ib_bdy)%u2d(:) = 0.0
	289	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
	290	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	291	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	292	DO ik = 1, jpkm1
	293	dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) &
	294	& + fse3u(ii,ij,ik) * umask(ii,ij,ik) * dta_bdy(ib_bdy)%u3d(ib,ik)
	295	END DO
	296	dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) * hur(ii,ij)
	297	DO ik = 1, jpkm1
	298	dta_bdy(ib_bdy)%u3d(ib,ik) = dta_bdy(ib_bdy)%u3d(ib,ik) - dta_bdy(ib_bdy)%u2d(ib)
	299	END DO
	300	END DO
	301	igrd = 3 ! meridional velocity
	302	dta_bdy(ib_bdy)%v2d(:) = 0.0
	303	DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd)
	304	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	305	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
	306	DO ik = 1, jpkm1
	307	dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) &
	308	& + fse3v(ii,ij,ik) * vmask(ii,ij,ik) * dta_bdy(ib_bdy)%v3d(ib,ik)
	309	END DO
	310	dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) * hvr(ii,ij)
	311	DO ik = 1, jpkm1
	312	dta_bdy(ib_bdy)%v3d(ib,ik) = dta_bdy(ib_bdy)%v3d(ib,ik) - dta_bdy(ib_bdy)%v2d(ib)
	313	END DO
	314	END DO
	315	ENDIF
	316	IF( nn_dyn2d(ib_bdy) .gt. 0 .and. nn_dyn2d_dta(ib_bdy) .ge. 2 ) THEN ! update tidal harmonic forcing
[3703]	317	CALL bdytide_update( kt=kt, idx=idx_bdy(ib_bdy), dta=dta_bdy(ib_bdy), &
	318	& td=tides(ib_bdy), time_offset=time_offset )
[3651]	319	ENDIF
[1125]	320	ENDIF
	321	ENDIF
[3294]	322	jstart = jend+1
[3651]	323	END IF ! nn_dta(ib_bdy) = 1
	324	END DO ! ib_bdy
[911]	325
[3651]	326	IF ( ln_apr_obc ) THEN
	327	DO ib_bdy = 1, nb_bdy
	328	IF (nn_tra(ib_bdy).NE.4)THEN
	329	igrd = 1 ! meridional velocity
	330	DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd)
[3294]	331	ii = idx_bdy(ib_bdy)%nbi(ib,igrd)
	332	ij = idx_bdy(ib_bdy)%nbj(ib,igrd)
[3651]	333	dta_bdy(ib_bdy)%ssh(ib) = dta_bdy(ib_bdy)%ssh(ib) + ssh_ib(ii,ij)
	334	ENDDO
[1125]	335	ENDIF
[3651]	336	ENDDO
	337	ENDIF
[911]	338
[3294]	339	IF( nn_timing == 1 ) CALL timing_stop('bdy_dta')
[911]	340
[3294]	341	END SUBROUTINE bdy_dta
[911]	342
	343
[3294]	344	SUBROUTINE bdy_dta_init
	345	!!----------------------------------------------------------------------
	346	!! * SUBROUTINE bdy_dta_init *
	347	!!
	348	!! ** Purpose : Initialise arrays for reading of external data
	349	!! for open boundary conditions
	350	!!
	351	!! ** Method : Use fldread.F90
	352	!!
	353	!!----------------------------------------------------------------------
	354	USE dynspg_oce, ONLY: lk_dynspg_ts
	355	!!
	356	INTEGER :: ib_bdy, jfld, jstart, jend, ierror ! local indices
[4147]	357	INTEGER :: ios ! Local integer output status for namelist read
[3294]	358	!!
	359	CHARACTER(len=100) :: cn_dir ! Root directory for location of data files
	360	CHARACTER(len=100), DIMENSION(nb_bdy) :: cn_dir_array ! Root directory for location of data files
	361	LOGICAL :: ln_full_vel ! =T => full velocities in 3D boundary data
	362	! =F => baroclinic velocities in 3D boundary data
	363	INTEGER :: ilen_global ! Max length required for global bdy dta arrays
	364	INTEGER, DIMENSION(jpbgrd) :: ilen0 ! size of local arrays
	365	INTEGER, ALLOCATABLE, DIMENSION(:) :: ilen1, ilen3 ! size of 1st and 3rd dimensions of local arrays
	366	INTEGER, ALLOCATABLE, DIMENSION(:) :: ibdy ! bdy set for a particular jfld
	367	INTEGER, ALLOCATABLE, DIMENSION(:) :: igrid ! index for grid type (1,2,3 = T,U,V)
	368	INTEGER, POINTER, DIMENSION(:) :: nblen, nblenrim ! short cuts
	369	TYPE(FLD_N), ALLOCATABLE, DIMENSION(:) :: blf_i ! array of namelist information structures
	370	TYPE(FLD_N) :: bn_tem, bn_sal, bn_u3d, bn_v3d !
	371	TYPE(FLD_N) :: bn_ssh, bn_u2d, bn_v2d ! informations about the fields to be read
[2528]	372	#if defined key_lim2
[3294]	373	TYPE(FLD_N) :: bn_frld, bn_hicif, bn_hsnif !
[2528]	374	#endif
[3294]	375	NAMELIST/nambdy_dta/ cn_dir, bn_tem, bn_sal, bn_u3d, bn_v3d, bn_ssh, bn_u2d, bn_v2d
[2528]	376	#if defined key_lim2
[3294]	377	NAMELIST/nambdy_dta/ bn_frld, bn_hicif, bn_hsnif
	378	#endif
	379	NAMELIST/nambdy_dta/ ln_full_vel
	380	!!---------------------------------------------------------------------------
[911]	381
[3294]	382	IF( nn_timing == 1 ) CALL timing_start('bdy_dta_init')
[911]	383
[3651]	384	IF(lwp) WRITE(numout,*)
	385	IF(lwp) WRITE(numout,*) 'bdy_dta_ini : initialization of data at the open boundaries'
	386	IF(lwp) WRITE(numout,*) '~~~~~~~~~~'
	387	IF(lwp) WRITE(numout,*) ''
	388
[3294]	389	! Set nn_dta
	390	DO ib_bdy = 1, nb_bdy
	391	nn_dta(ib_bdy) = MAX( nn_dyn2d_dta(ib_bdy) &
	392	,nn_dyn3d_dta(ib_bdy) &
	393	,nn_tra_dta(ib_bdy) &
[2528]	394	#if defined key_lim2
[3294]	395	,nn_ice_lim2_dta(ib_bdy) &
[2528]	396	#endif
[3294]	397	)
	398	IF(nn_dta(ib_bdy) .gt. 1) nn_dta(ib_bdy) = 1
	399	END DO
[911]	400
[3294]	401	! Work out upper bound of how many fields there are to read in and allocate arrays
	402	! ---------------------------------------------------------------------------
	403	ALLOCATE( nb_bdy_fld(nb_bdy) )
	404	nb_bdy_fld(:) = 0
	405	DO ib_bdy = 1, nb_bdy
	406	IF( nn_dyn2d(ib_bdy) .gt. 0 .and. ( nn_dyn2d_dta(ib_bdy) .eq. 1 .or. nn_dyn2d_dta(ib_bdy) .eq. 3 ) ) THEN
	407	nb_bdy_fld(ib_bdy) = nb_bdy_fld(ib_bdy) + 3
	408	ENDIF
	409	IF( nn_dyn3d(ib_bdy) .gt. 0 .and. nn_dyn3d_dta(ib_bdy) .eq. 1 ) THEN
	410	nb_bdy_fld(ib_bdy) = nb_bdy_fld(ib_bdy) + 2
	411	ENDIF
	412	IF( nn_tra(ib_bdy) .gt. 0 .and. nn_tra_dta(ib_bdy) .eq. 1 ) THEN
	413	nb_bdy_fld(ib_bdy) = nb_bdy_fld(ib_bdy) + 2
	414	ENDIF
[2528]	415	#if defined key_lim2
[3294]	416	IF( nn_ice_lim2(ib_bdy) .gt. 0 .and. nn_ice_lim2_dta(ib_bdy) .eq. 1 ) THEN
	417	nb_bdy_fld(ib_bdy) = nb_bdy_fld(ib_bdy) + 3
	418	ENDIF
	419	#endif
[3651]	420	IF(lwp) WRITE(numout,*) 'Maximum number of files to open =',nb_bdy_fld(ib_bdy)
[3294]	421	ENDDO
[2528]	422
[3294]	423	nb_bdy_fld_sum = SUM( nb_bdy_fld )
[911]	424
[3294]	425	ALLOCATE( bf(nb_bdy_fld_sum), STAT=ierror )
	426	IF( ierror > 0 ) THEN
	427	CALL ctl_stop( 'bdy_dta: unable to allocate bf structure' ) ; RETURN
[911]	428	ENDIF
[3294]	429	ALLOCATE( blf_i(nb_bdy_fld_sum), STAT=ierror )
	430	IF( ierror > 0 ) THEN
	431	CALL ctl_stop( 'bdy_dta: unable to allocate blf_i structure' ) ; RETURN
[1125]	432	ENDIF
[3294]	433	ALLOCATE( nbmap_ptr(nb_bdy_fld_sum), STAT=ierror )
	434	IF( ierror > 0 ) THEN
	435	CALL ctl_stop( 'bdy_dta: unable to allocate nbmap_ptr structure' ) ; RETURN
	436	ENDIF
	437	ALLOCATE( ilen1(nb_bdy_fld_sum), ilen3(nb_bdy_fld_sum) )
	438	ALLOCATE( ibdy(nb_bdy_fld_sum) )
	439	ALLOCATE( igrid(nb_bdy_fld_sum) )
[911]	440
[3294]	441	! Read namelists
	442	! --------------
[4147]	443	REWIND(numnam_ref)
	444	REWIND(numnam_cfg)
[3294]	445	jfld = 0
	446	DO ib_bdy = 1, nb_bdy
	447	IF( nn_dta(ib_bdy) .eq. 1 ) THEN
[4147]	448	READ ( numnam_ref, nambdy_dta, IOSTAT = ios, ERR = 901)
	449	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_dta in reference namelist', lwp )
[911]	450
[4147]	451	READ ( numnam_cfg, nambdy_dta, IOSTAT = ios, ERR = 902 )
	452	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_dta in configuration namelist', lwp )
	453	WRITE ( numond, nambdy_dta )
	454
[3294]	455	cn_dir_array(ib_bdy) = cn_dir
	456	ln_full_vel_array(ib_bdy) = ln_full_vel
[911]	457
[3294]	458	nblen => idx_bdy(ib_bdy)%nblen
	459	nblenrim => idx_bdy(ib_bdy)%nblenrim
[911]	460
[3294]	461	! Only read in necessary fields for this set.
	462	! Important that barotropic variables come first.
	463	IF( nn_dyn2d(ib_bdy) .gt. 0 .and. ( nn_dyn2d_dta(ib_bdy) .eq. 1 .or. nn_dyn2d_dta(ib_bdy) .eq. 3 ) ) THEN
[911]	464
[4148]	465	IF( nn_dyn2d(ib_bdy) .ne. jp_frs .and. nn_tra(ib_bdy) .ne. 4 ) THEN ! runoff condition : no ssh reading
[3294]	466	jfld = jfld + 1
	467	blf_i(jfld) = bn_ssh
	468	ibdy(jfld) = ib_bdy
	469	igrid(jfld) = 1
[3651]	470	ilen1(jfld) = nblen(igrid(jfld))
[3294]	471	ilen3(jfld) = 1
	472	ENDIF
[911]	473
[3294]	474	IF( .not. ln_full_vel_array(ib_bdy) ) THEN
	475	jfld = jfld + 1
	476	blf_i(jfld) = bn_u2d
	477	ibdy(jfld) = ib_bdy
	478	igrid(jfld) = 2
[3651]	479	ilen1(jfld) = nblen(igrid(jfld))
[3294]	480	ilen3(jfld) = 1
[911]	481
[3294]	482	jfld = jfld + 1
	483	blf_i(jfld) = bn_v2d
	484	ibdy(jfld) = ib_bdy
	485	igrid(jfld) = 3
[3651]	486	ilen1(jfld) = nblen(igrid(jfld))
[3294]	487	ilen3(jfld) = 1
	488	ENDIF
[911]	489
[3294]	490	ENDIF
[1125]	491
[3294]	492	! baroclinic velocities
	493	IF( ( nn_dyn3d(ib_bdy) .gt. 0 .and. nn_dyn3d_dta(ib_bdy) .eq. 1 ) .or. &
	494	& ( ln_full_vel_array(ib_bdy) .and. nn_dyn2d(ib_bdy) .gt. 0 .and. &
	495	& ( nn_dyn2d_dta(ib_bdy) .eq. 1 .or. nn_dyn2d_dta(ib_bdy) .eq. 3 ) ) ) THEN
[911]	496
[3294]	497	jfld = jfld + 1
	498	blf_i(jfld) = bn_u3d
	499	ibdy(jfld) = ib_bdy
	500	igrid(jfld) = 2
[3651]	501	ilen1(jfld) = nblen(igrid(jfld))
[3294]	502	ilen3(jfld) = jpk
[911]	503
[3294]	504	jfld = jfld + 1
	505	blf_i(jfld) = bn_v3d
	506	ibdy(jfld) = ib_bdy
	507	igrid(jfld) = 3
[3651]	508	ilen1(jfld) = nblen(igrid(jfld))
[3294]	509	ilen3(jfld) = jpk
[911]	510
[3294]	511	ENDIF
[911]	512
[3294]	513	! temperature and salinity
	514	IF( nn_tra(ib_bdy) .gt. 0 .and. nn_tra_dta(ib_bdy) .eq. 1 ) THEN
[911]	515
[3294]	516	jfld = jfld + 1
	517	blf_i(jfld) = bn_tem
	518	ibdy(jfld) = ib_bdy
	519	igrid(jfld) = 1
[3651]	520	ilen1(jfld) = nblen(igrid(jfld))
[3294]	521	ilen3(jfld) = jpk
[911]	522
[3294]	523	jfld = jfld + 1
	524	blf_i(jfld) = bn_sal
	525	ibdy(jfld) = ib_bdy
	526	igrid(jfld) = 1
[3651]	527	ilen1(jfld) = nblen(igrid(jfld))
[3294]	528	ilen3(jfld) = jpk
[911]	529
	530	ENDIF
	531
[3294]	532	#if defined key_lim2
	533	! sea ice
	534	IF( nn_ice_lim2(ib_bdy) .gt. 0 .and. nn_ice_lim2_dta(ib_bdy) .eq. 1 ) THEN
[911]	535
[3294]	536	jfld = jfld + 1
	537	blf_i(jfld) = bn_frld
	538	ibdy(jfld) = ib_bdy
	539	igrid(jfld) = 1
[3651]	540	ilen1(jfld) = nblen(igrid(jfld))
[3294]	541	ilen3(jfld) = 1
[911]	542
[3294]	543	jfld = jfld + 1
	544	blf_i(jfld) = bn_hicif
	545	ibdy(jfld) = ib_bdy
	546	igrid(jfld) = 1
[3651]	547	ilen1(jfld) = nblen(igrid(jfld))
[3294]	548	ilen3(jfld) = 1
[911]	549
[3294]	550	jfld = jfld + 1
	551	blf_i(jfld) = bn_hsnif
	552	ibdy(jfld) = ib_bdy
	553	igrid(jfld) = 1
[3651]	554	ilen1(jfld) = nblen(igrid(jfld))
[3294]	555	ilen3(jfld) = 1
[911]	556
[3294]	557	ENDIF
	558	#endif
	559	! Recalculate field counts
	560	!-------------------------
	561	IF( ib_bdy .eq. 1 ) THEN
[4148]	562	nb_bdy_fld_sum = 0
[3294]	563	nb_bdy_fld(ib_bdy) = jfld
	564	nb_bdy_fld_sum = jfld
	565	ELSE
	566	nb_bdy_fld(ib_bdy) = jfld - nb_bdy_fld_sum
	567	nb_bdy_fld_sum = nb_bdy_fld_sum + nb_bdy_fld(ib_bdy)
	568	ENDIF
[911]	569
[3294]	570	ENDIF ! nn_dta .eq. 1
	571	ENDDO ! ib_bdy
[911]	572
[3294]	573	DO jfld = 1, nb_bdy_fld_sum
	574	ALLOCATE( bf(jfld)%fnow(ilen1(jfld),1,ilen3(jfld)) )
	575	IF( blf_i(jfld)%ln_tint ) ALLOCATE( bf(jfld)%fdta(ilen1(jfld),1,ilen3(jfld),2) )
	576	nbmap_ptr(jfld)%ptr => idx_bdy(ibdy(jfld))%nbmap(:,igrid(jfld))
	577	ENDDO
[911]	578
[3294]	579	! fill bf with blf_i and control print
	580	!-------------------------------------
	581	jstart = 1
	582	DO ib_bdy = 1, nb_bdy
[3651]	583	jend = nb_bdy_fld(ib_bdy)
[3294]	584	CALL fld_fill( bf(jstart:jend), blf_i(jstart:jend), cn_dir_array(ib_bdy), 'bdy_dta', &
	585	& 'open boundary conditions', 'nambdy_dta' )
	586	jstart = jend + 1
	587	ENDDO
[911]	588
[3294]	589	! Initialise local boundary data arrays
	590	! nn_xxx_dta=0 : allocate space - will be filled from initial conditions later
	591	! nn_xxx_dta=1 : point to "fnow" arrays
	592	!-------------------------------------
[911]	593
[3294]	594	jfld = 0
	595	DO ib_bdy=1, nb_bdy
[911]	596
[3294]	597	nblen => idx_bdy(ib_bdy)%nblen
	598	nblenrim => idx_bdy(ib_bdy)%nblenrim
[911]	599
[3294]	600	IF (nn_dyn2d(ib_bdy) .gt. 0) THEN
	601	IF( nn_dyn2d_dta(ib_bdy) .eq. 0 .or. nn_dyn2d_dta(ib_bdy) .eq. 2 .or. ln_full_vel_array(ib_bdy) ) THEN
[3651]	602	ilen0(1:3) = nblen(1:3)
	603	ALLOCATE( dta_bdy(ib_bdy)%u2d(ilen0(2)) )
	604	ALLOCATE( dta_bdy(ib_bdy)%v2d(ilen0(3)) )
[4148]	605	IF ( nn_dyn2d(ib_bdy) .ne. jp_frs .and. (nn_dyn2d_dta(ib_bdy).eq.1.or.nn_dyn2d_dta(ib_bdy).eq.3) ) THEN
[3651]	606	jfld = jfld + 1
	607	dta_bdy(ib_bdy)%ssh => bf(jfld)%fnow(:,1,1)
[3294]	608	ELSE
[3651]	609	ALLOCATE( dta_bdy(ib_bdy)%ssh(nblen(1)) )
[3294]	610	ENDIF
	611	ELSE
	612	IF( nn_dyn2d(ib_bdy) .ne. jp_frs ) THEN
	613	jfld = jfld + 1
	614	dta_bdy(ib_bdy)%ssh => bf(jfld)%fnow(:,1,1)
	615	ENDIF
	616	jfld = jfld + 1
	617	dta_bdy(ib_bdy)%u2d => bf(jfld)%fnow(:,1,1)
	618	jfld = jfld + 1
	619	dta_bdy(ib_bdy)%v2d => bf(jfld)%fnow(:,1,1)
	620	ENDIF
	621	ENDIF
[911]	622
[3294]	623	IF ( nn_dyn3d(ib_bdy) .gt. 0 .and. nn_dyn3d_dta(ib_bdy) .eq. 0 ) THEN
[3651]	624	ilen0(1:3) = nblen(1:3)
[3294]	625	ALLOCATE( dta_bdy(ib_bdy)%u3d(ilen0(2),jpk) )
	626	ALLOCATE( dta_bdy(ib_bdy)%v3d(ilen0(3),jpk) )
	627	ENDIF
	628	IF ( ( nn_dyn3d(ib_bdy) .gt. 0 .and. nn_dyn3d_dta(ib_bdy) .eq. 1 ).or. &
	629	& ( ln_full_vel_array(ib_bdy) .and. nn_dyn2d(ib_bdy) .gt. 0 .and. &
	630	& ( nn_dyn2d_dta(ib_bdy) .eq. 1 .or. nn_dyn2d_dta(ib_bdy) .eq. 3 ) ) ) THEN
	631	jfld = jfld + 1
	632	dta_bdy(ib_bdy)%u3d => bf(jfld)%fnow(:,1,:)
	633	jfld = jfld + 1
	634	dta_bdy(ib_bdy)%v3d => bf(jfld)%fnow(:,1,:)
	635	ENDIF
[911]	636
[3294]	637	IF (nn_tra(ib_bdy) .gt. 0) THEN
	638	IF( nn_tra_dta(ib_bdy) .eq. 0 ) THEN
[3651]	639	ilen0(1:3) = nblen(1:3)
[3294]	640	ALLOCATE( dta_bdy(ib_bdy)%tem(ilen0(1),jpk) )
	641	ALLOCATE( dta_bdy(ib_bdy)%sal(ilen0(1),jpk) )
	642	ELSE
	643	jfld = jfld + 1
	644	dta_bdy(ib_bdy)%tem => bf(jfld)%fnow(:,1,:)
	645	jfld = jfld + 1
	646	dta_bdy(ib_bdy)%sal => bf(jfld)%fnow(:,1,:)
	647	ENDIF
	648	ENDIF
[911]	649
[3294]	650	#if defined key_lim2
	651	IF (nn_ice_lim2(ib_bdy) .gt. 0) THEN
	652	IF( nn_ice_lim2_dta(ib_bdy) .eq. 0 ) THEN
[3651]	653	ilen0(1:3) = nblen(1:3)
[3294]	654	ALLOCATE( dta_bdy(ib_bdy)%frld(ilen0(1)) )
	655	ALLOCATE( dta_bdy(ib_bdy)%hicif(ilen0(1)) )
	656	ALLOCATE( dta_bdy(ib_bdy)%hsnif(ilen0(1)) )
	657	ELSE
	658	jfld = jfld + 1
	659	dta_bdy(ib_bdy)%frld => bf(jfld)%fnow(:,1,1)
	660	jfld = jfld + 1
	661	dta_bdy(ib_bdy)%hicif => bf(jfld)%fnow(:,1,1)
	662	jfld = jfld + 1
	663	dta_bdy(ib_bdy)%hsnif => bf(jfld)%fnow(:,1,1)
	664	ENDIF
[911]	665	ENDIF
[3294]	666	#endif
[911]	667
[3294]	668	ENDDO ! ib_bdy
[911]	669
[3294]	670	IF( nn_timing == 1 ) CALL timing_stop('bdy_dta_init')
[911]	671
[3294]	672	END SUBROUTINE bdy_dta_init
[911]	673
	674	#else
[1125]	675	!!----------------------------------------------------------------------
[3294]	676	!! Dummy module NO Open Boundary Conditions
[1125]	677	!!----------------------------------------------------------------------
[911]	678	CONTAINS
[3294]	679	SUBROUTINE bdy_dta( kt, jit, time_offset ) ! Empty routine
	680	INTEGER, INTENT( in ) :: kt
	681	INTEGER, INTENT( in ), OPTIONAL :: jit
	682	INTEGER, INTENT( in ), OPTIONAL :: time_offset
	683	WRITE(,) 'bdy_dta: You should not have seen this print! error?', kt
	684	END SUBROUTINE bdy_dta
	685	SUBROUTINE bdy_dta_init() ! Empty routine
	686	WRITE(,) 'bdy_dta_init: You should not have seen this print! error?'
	687	END SUBROUTINE bdy_dta_init
[911]	688	#endif
	689
	690	!!==============================================================================
	691	END MODULE bdydta

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