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.

bdyice.F90 in NEMO/branches/2019/dev_r10984_HPC-13_IRRMANN_BDY_optimization/src/OCE/BDY – NEMO

Context Navigation

source: NEMO/branches/2019/dev_r10984_HPC-13_IRRMANN_BDY_optimization/src/OCE/BDY/bdyice.F90 @ 11423

Last change on this file since 11423 was 11210, checked in by girrmann, 5 years ago
dev_r10984_HPC-13 : remove some communications in bdy treatment in case nn_hls > 1, see #2285
Property svn:keywords set to `Id`
File size: 24.5 KB

Rev	Line
[8586]	1	MODULE bdyice
	2	!!======================================================================
	3	!! * MODULE bdyice *
[9656]	4	!! Unstructured Open Boundary Cond. : Open boundary conditions for sea-ice (SI3)
[8586]	5	!!======================================================================
	6	!! History : 3.3 ! 2010-09 (D. Storkey) Original code
[9656]	7	!! 3.4 ! 2012-01 (C. Rousset) add new sea ice model
	8	!! 4.0 ! 2018 (C. Rousset) SI3 compatibility
[8586]	9	!!----------------------------------------------------------------------
[9570]	10	#if defined key_si3
[8586]	11	!!----------------------------------------------------------------------
[9656]	12	!! 'key_si3' SI3 sea ice model
[8586]	13	!!----------------------------------------------------------------------
	14	!! bdy_ice : Application of open boundaries to ice
	15	!! bdy_ice_frs : Application of Flow Relaxation Scheme
	16	!!----------------------------------------------------------------------
	17	USE oce ! ocean dynamics and tracers variables
[8637]	18	USE ice ! sea-ice: variables
	19	USE icevar ! sea-ice: operations
[9880]	20	USE icecor ! sea-ice: corrections
[8637]	21	USE icectl ! sea-ice: control prints
[8586]	22	USE phycst ! physical constant
	23	USE eosbn2 ! equation of state
	24	USE par_oce ! ocean parameters
	25	USE dom_oce ! ocean space and time domain variables
	26	USE sbc_oce ! Surface boundary condition: ocean fields
	27	USE bdy_oce ! ocean open boundary conditions
	28	!
	29	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
	30	USE in_out_manager ! write to numout file
	31	USE lib_mpp ! distributed memory computing
	32	USE lib_fortran ! to use key_nosignedzero
	33	USE timing ! Timing
	34
	35	IMPLICIT NONE
	36	PRIVATE
	37
	38	PUBLIC bdy_ice ! routine called in sbcmod
[9656]	39	PUBLIC bdy_ice_dyn ! routine called in icedyn_rhg_evp
[8586]	40
	41	!!----------------------------------------------------------------------
[9598]	42	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
[10069]	43	!! $Id$
[10068]	44	!! Software governed by the CeCILL license (see ./LICENSE)
[8586]	45	!!----------------------------------------------------------------------
	46	CONTAINS
	47
	48	SUBROUTINE bdy_ice( kt )
	49	!!----------------------------------------------------------------------
	50	!! * SUBROUTINE bdy_ice *
	51	!!
[9890]	52	!! ** Purpose : Apply open boundary conditions for sea ice
[8586]	53	!!
	54	!!----------------------------------------------------------------------
	55	INTEGER, INTENT(in) :: kt ! Main time step counter
	56	!
[11191]	57	INTEGER :: jbdy, ir ! BDY set index, rim index
	58	INTEGER :: ibeg, iend ! length of rim to be treated (rim 0 or rim 1)
	59	LOGICAL :: llrim0 ! indicate if rim 0 is treated
	60	LOGICAL, DIMENSION(4) :: llsend1, llrecv1 ! indicate how communications are to be carried out
[8586]	61	!!----------------------------------------------------------------------
[11042]	62	! controls
	63	IF( ln_timing ) CALL timing_start('bdy_ice_thd') ! timing
	64	IF( ln_icediachk ) CALL ice_cons_hsm(0,'bdy_ice_thd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation
[8586]	65	!
	66	CALL ice_var_glo2eqv
	67	!
[11210]	68	llsend1(:) = .false. ; llrecv1(:) = .false.
[11191]	69	DO ir = 1, 0, -1 ! treat rim 1 before rim 0
	70	IF( ir == 0 ) THEN ; llrim0 = .TRUE.
	71	ELSE ; llrim0 = .FALSE.
	72	END IF
	73	DO jbdy = 1, nb_bdy
	74	!
	75	SELECT CASE( cn_ice(jbdy) )
	76	CASE('none') ; CYCLE
	77	CASE('frs' ) ; CALL bdy_ice_frs( idx_bdy(jbdy), dta_bdy(jbdy), kt, jbdy, llrim0 )
	78	CASE DEFAULT
	79	CALL ctl_stop( 'bdy_ice : unrecognised option for open boundaries for ice fields' )
	80	END SELECT
	81	!
	82	END DO
[8586]	83	!
[11210]	84	! Update bdy points
	85	IF( nn_hls > 1 .AND. ir == 1 ) CYCLE ! at least 2 halos will be corrected -> no need to correct rim 1 before rim 0
	86	IF( nn_hls == 1 ) THEN ; llsend1(:) = .false. ; llrecv1(:) = .false. ; END IF
[11191]	87	DO jbdy = 1, nb_bdy
	88	IF( cn_ice(jbdy) == 'frs' ) THEN
	89	llsend1(:) = llsend1(:) .OR. lsend_bdyint(jbdy,1,:,ir) ! possibly every direction, T points
	90	llrecv1(:) = llrecv1(:) .OR. lrecv_bdyint(jbdy,1,:,ir) ! possibly every direction, T points
	91	END IF
	92	END DO ! jbdy
	93	IF( ANY(llsend1) .OR. ANY(llrecv1) ) THEN ! if need to send/recv in at least one direction
	94	! exchange 3d arrays
[11195]	95	CALL lbc_lnk_multi( 'bdyice', a_i , 'T', 1., h_i , 'T', 1., h_s , 'T', 1., oa_i, 'T', 1. &
	96	& , a_ip, 'T', 1., v_ip, 'T', 1., s_i , 'T', 1., t_su, 'T', 1. &
	97	& , v_i , 'T', 1., v_s , 'T', 1., sv_i, 'T', 1. &
	98	& , kfillmode=jpfillnothing ,lsend=llsend1, lrecv=llrecv1 )
	99	! exchange 4d arrays : third dimension = 1 and then third dimension = jpk
	100	CALL lbc_lnk_multi( 'bdyice', t_s , 'T', 1., e_s , 'T', 1., kfillmode=jpfillnothing ,lsend=llsend1, lrecv=llrecv1 )
	101	CALL lbc_lnk_multi( 'bdyice', t_i , 'T', 1., e_i , 'T', 1., kfillmode=jpfillnothing ,lsend=llsend1, lrecv=llrecv1 )
[11067]	102	END IF
[11191]	103	END DO ! ir
[11067]	104	!
[9880]	105	CALL ice_cor( kt , 0 ) ! -- In case categories are out of bounds, do a remapping
[9885]	106	! ! i.e. inputs have not the same ice thickness distribution (set by rn_himean)
	107	! ! than the regional simulation
[9124]	108	CALL ice_var_agg(1)
	109	!
[11042]	110	! controls
	111	IF( ln_icediachk ) CALL ice_cons_hsm(1,'bdy_ice_thd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation
	112	IF( ln_icectl ) CALL ice_prt ( kt, iiceprt, jiceprt, 1, ' - ice thermo bdy - ' ) ! prints
	113	IF( ln_timing ) CALL timing_stop ('bdy_ice_thd') ! timing
[8586]	114	!
	115	END SUBROUTINE bdy_ice
	116
	117
[11191]	118	SUBROUTINE bdy_ice_frs( idx, dta, kt, jbdy, llrim0 )
[8586]	119	!!------------------------------------------------------------------------------
	120	!! * SUBROUTINE bdy_ice_frs *
	121	!!
[9890]	122	!! ** Purpose : Apply the Flow Relaxation Scheme for sea-ice fields
[8586]	123	!!
	124	!! Reference : Engedahl H., 1995: Use of the flow relaxation scheme in a three-
	125	!! dimensional baroclinic ocean model with realistic topography. Tellus, 365-382.
	126	!!------------------------------------------------------------------------------
[11191]	127	TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices
	128	TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data
	129	INTEGER, INTENT(in) :: kt ! main time-step counter
	130	INTEGER, INTENT(in) :: jbdy ! BDY set index
	131	LOGICAL, INTENT(in) :: llrim0 ! indicate if rim 0 is treated
[8586]	132	!
	133	INTEGER :: jpbound ! 0 = incoming ice
	134	! ! 1 = outgoing ice
[11191]	135	INTEGER :: ibeg, iend ! length of rim to be treated (rim 0 or rim 1)
[9890]	136	INTEGER :: i_bdy, jgrd ! dummy loop indices
	137	INTEGER :: ji, jj, jk, jl, ib, jb
[8586]	138	REAL(wp) :: zwgt, zwgt1 ! local scalar
	139	REAL(wp) :: ztmelts, zdh
[11048]	140	REAL(wp), POINTER :: flagu, flagv ! short cuts
[8586]	141	!!------------------------------------------------------------------------------
	142	!
	143	jgrd = 1 ! Everything is at T-points here
[11191]	144	IF( llrim0 ) THEN ; ibeg = 1 ; iend = idx%nblenrim0(jgrd)
	145	ELSE ; ibeg = idx%nblenrim0(jgrd)+1 ; iend = idx%nblenrim(jgrd)
	146	END IF
[8586]	147	!
	148	DO jl = 1, jpl
[11191]	149	DO i_bdy = ibeg, iend
[9890]	150	ji = idx%nbi(i_bdy,jgrd)
	151	jj = idx%nbj(i_bdy,jgrd)
	152	zwgt = idx%nbw(i_bdy,jgrd)
	153	zwgt1 = 1.e0 - idx%nbw(i_bdy,jgrd)
	154	a_i(ji,jj,jl) = ( a_i(ji,jj,jl) * zwgt1 + dta%a_i(i_bdy,jl) * zwgt ) * tmask(ji,jj,1) ! Leads fraction
	155	h_i(ji,jj,jl) = ( h_i(ji,jj,jl) * zwgt1 + dta%h_i(i_bdy,jl) * zwgt ) * tmask(ji,jj,1) ! Ice depth
	156	h_s(ji,jj,jl) = ( h_s(ji,jj,jl) * zwgt1 + dta%h_s(i_bdy,jl) * zwgt ) * tmask(ji,jj,1) ! Snow depth
[8586]	157
	158	! -----------------
	159	! Pathological case
	160	! -----------------
	161	! In case a) snow load would be in excess or b) ice is coming into a warmer environment that would lead to
	162	! very large transformation from snow to ice (see icethd_dh.F90)
	163
	164	! Then, a) transfer the snow excess into the ice (different from icethd_dh)
[9935]	165	zdh = MAX( 0._wp, ( rhos * h_s(ji,jj,jl) + ( rhoi - rau0 ) * h_i(ji,jj,jl) ) * r1_rau0 )
[8586]	166	! Or, b) transfer all the snow into ice (if incoming ice is likely to melt as it comes into a warmer environment)
[9935]	167	!zdh = MAX( 0._wp, h_s(ji,jj,jl) * rhos / rhoi )
[8586]	168
	169	! recompute h_i, h_s
	170	h_i(ji,jj,jl) = MIN( hi_max(jl), h_i(ji,jj,jl) + zdh )
[9935]	171	h_s(ji,jj,jl) = MAX( 0._wp, h_s(ji,jj,jl) - zdh * rhoi / rhos )
[8586]	172
	173	ENDDO
	174	ENDDO
	175
	176	DO jl = 1, jpl
[11191]	177	DO i_bdy = ibeg, iend
[9890]	178	ji = idx%nbi(i_bdy,jgrd)
	179	jj = idx%nbj(i_bdy,jgrd)
[11048]	180	flagu => idx%flagu(i_bdy,jgrd)
	181	flagv => idx%flagv(i_bdy,jgrd)
[8586]	182	! condition on ice thickness depends on the ice velocity
	183	! if velocity is outward (strictly), then ice thickness, volume... must be equal to adjacent values
[9890]	184	jpbound = 0 ; ib = ji ; jb = jj
[8586]	185	!
[11049]	186	IF( flagu == 1. ) THEN
[11071]	187	IF( ji+1 > jpi ) CYCLE
[11049]	188	IF( u_ice(ji ,jj ) < 0. ) jpbound = 1 ; ib = ji+1
	189	END IF
	190	IF( flagu == -1. ) THEN
[11071]	191	IF( ji-1 < 1 ) CYCLE
[11049]	192	IF( u_ice(ji-1,jj ) < 0. ) jpbound = 1 ; ib = ji-1
	193	END IF
	194	IF( flagv == 1. ) THEN
[11071]	195	IF( jj+1 > jpj ) CYCLE
[11049]	196	IF( v_ice(ji ,jj ) < 0. ) jpbound = 1 ; jb = jj+1
	197	END IF
	198	IF( flagv == -1. ) THEN
	199	IF( jj-1 < 1 ) CYCLE
	200	IF( v_ice(ji ,jj-1) < 0. ) jpbound = 1 ; jb = jj-1
	201	END IF
[8586]	202	!
[9890]	203	IF( nn_ice_dta(jbdy) == 0 ) jpbound = 0 ; ib = ji ; jb = jj ! case ice boundaries = initial conditions
	204	! ! do not make state variables dependent on velocity
[8586]	205	!
[9890]	206	IF( a_i(ib,jb,jl) > 0._wp ) THEN ! there is ice at the boundary
[8586]	207	!
[9890]	208	a_i(ji,jj,jl) = a_i(ib,jb,jl) ! concentration
	209	h_i(ji,jj,jl) = h_i(ib,jb,jl) ! thickness ice
	210	h_s(ji,jj,jl) = h_s(ib,jb,jl) ! thickness snw
[8586]	211	!
[9888]	212	SELECT CASE( jpbound )
	213	!
	214	CASE( 0 ) ! velocity is inward
	215	!
[9890]	216	oa_i(ji,jj, jl) = rn_ice_age(jbdy) * a_i(ji,jj,jl) ! age
	217	a_ip(ji,jj, jl) = 0._wp ! pond concentration
	218	v_ip(ji,jj, jl) = 0._wp ! pond volume
	219	t_su(ji,jj, jl) = rn_ice_tem(jbdy) ! temperature surface
	220	t_s (ji,jj,:,jl) = rn_ice_tem(jbdy) ! temperature snw
	221	t_i (ji,jj,:,jl) = rn_ice_tem(jbdy) ! temperature ice
	222	s_i (ji,jj, jl) = rn_ice_sal(jbdy) ! salinity
	223	sz_i(ji,jj,:,jl) = rn_ice_sal(jbdy) ! salinity profile
[9888]	224	!
	225	CASE( 1 ) ! velocity is outward
	226	!
[9890]	227	oa_i(ji,jj, jl) = oa_i(ib,jb, jl) ! age
	228	a_ip(ji,jj, jl) = a_ip(ib,jb, jl) ! pond concentration
	229	v_ip(ji,jj, jl) = v_ip(ib,jb, jl) ! pond volume
	230	t_su(ji,jj, jl) = t_su(ib,jb, jl) ! temperature surface
	231	t_s (ji,jj,:,jl) = t_s (ib,jb,:,jl) ! temperature snw
	232	t_i (ji,jj,:,jl) = t_i (ib,jb,:,jl) ! temperature ice
	233	s_i (ji,jj, jl) = s_i (ib,jb, jl) ! salinity
	234	sz_i(ji,jj,:,jl) = sz_i(ib,jb,:,jl) ! salinity profile
[9888]	235	!
	236	END SELECT
[9885]	237	!
[9888]	238	IF( nn_icesal == 1 ) THEN ! if constant salinity
	239	s_i (ji,jj ,jl) = rn_icesal
	240	sz_i(ji,jj,:,jl) = rn_icesal
	241	ENDIF
[8586]	242	!
[9888]	243	! global fields
	244	v_i (ji,jj,jl) = h_i(ji,jj,jl) * a_i(ji,jj,jl) ! volume ice
	245	v_s (ji,jj,jl) = h_s(ji,jj,jl) * a_i(ji,jj,jl) ! volume snw
	246	sv_i(ji,jj,jl) = MIN( s_i(ji,jj,jl) , sss_m(ji,jj) ) * v_i(ji,jj,jl) ! salt content
[8586]	247	DO jk = 1, nlay_s
[9935]	248	e_s(ji,jj,jk,jl) = rhos * ( rcpi * ( rt0 - t_s(ji,jj,jk,jl) ) + rLfus ) ! enthalpy in J/m3
[9888]	249	e_s(ji,jj,jk,jl) = e_s(ji,jj,jk,jl) * v_s(ji,jj,jl) * r1_nlay_s ! enthalpy in J/m2
	250	END DO
[8586]	251	DO jk = 1, nlay_i
[9935]	252	ztmelts = - rTmlt * sz_i(ji,jj,jk,jl) ! Melting temperature in C
[9888]	253	t_i(ji,jj,jk,jl) = MIN( t_i(ji,jj,jk,jl), ztmelts + rt0 ) ! Force t_i to be lower than melting point => likely conservation issue
	254	!
[9935]	255	e_i(ji,jj,jk,jl) = rhoi * ( rcpi * ( ztmelts - ( t_i(ji,jj,jk,jl) - rt0 ) ) & ! enthalpy in J/m3
	256	& + rLfus * ( 1._wp - ztmelts / ( t_i(ji,jj,jk,jl) - rt0 ) ) &
	257	& - rcp * ztmelts )
[9888]	258	e_i(ji,jj,jk,jl) = e_i(ji,jj,jk,jl) * v_i(ji,jj,jl) * r1_nlay_i ! enthalpy in J/m2
[8586]	259	END DO
	260	!
[9888]	261	ELSE ! no ice at the boundary
[9885]	262	!
[9888]	263	a_i (ji,jj, jl) = 0._wp
	264	h_i (ji,jj, jl) = 0._wp
	265	h_s (ji,jj, jl) = 0._wp
	266	oa_i(ji,jj, jl) = 0._wp
	267	a_ip(ji,jj, jl) = 0._wp
	268	v_ip(ji,jj, jl) = 0._wp
	269	t_su(ji,jj, jl) = rt0
	270	t_s (ji,jj,:,jl) = rt0
	271	t_i (ji,jj,:,jl) = rt0
	272
	273	IF( nn_icesal == 1 ) THEN ! if constant salinity
	274	s_i (ji,jj ,jl) = rn_icesal
	275	sz_i(ji,jj,:,jl) = rn_icesal
	276	ELSE ! if variable salinity
	277	s_i (ji,jj,jl) = rn_simin
	278	sz_i(ji,jj,:,jl) = rn_simin
	279	ENDIF
	280	!
	281	! global fields
	282	v_i (ji,jj, jl) = 0._wp
	283	v_s (ji,jj, jl) = 0._wp
	284	sv_i(ji,jj, jl) = 0._wp
	285	e_s (ji,jj,:,jl) = 0._wp
	286	e_i (ji,jj,:,jl) = 0._wp
	287
[8586]	288	ENDIF
[9888]	289
[8586]	290	END DO
	291	!
[9888]	292	END DO ! jl
[8586]	293	!
	294	END SUBROUTINE bdy_ice_frs
	295
	296
	297	SUBROUTINE bdy_ice_dyn( cd_type )
	298	!!------------------------------------------------------------------------------
	299	!! * SUBROUTINE bdy_ice_dyn *
	300	!!
[9890]	301	!! ** Purpose : Apply dynamics boundary conditions for sea-ice.
[8586]	302	!!
[9890]	303	!! ** Method : if this adjacent grid point is not ice free, then u_ice and v_ice take its value
	304	!! if is ice free, then u_ice and v_ice are unchanged by BDY
	305	!! they keep values calculated in rheology
	306	!!
[8586]	307	!!------------------------------------------------------------------------------
	308	CHARACTER(len=1), INTENT(in) :: cd_type ! nature of velocity grid-points
	309	!
[11191]	310	INTEGER :: i_bdy, jgrd ! dummy loop indices
	311	INTEGER :: ji, jj ! local scalar
	312	INTEGER :: jbdy, ir ! BDY set index, rim index
	313	INTEGER :: ibeg, iend ! length of rim to be treated (rim 0 or rim 1)
[8586]	314	REAL(wp) :: zmsk1, zmsk2, zflag
[11071]	315	LOGICAL, DIMENSION(4) :: llsend2, llrecv2, llsend3, llrecv3 ! indicate how communications are to be carried out
[8586]	316	!!------------------------------------------------------------------------------
[9905]	317	IF( ln_timing ) CALL timing_start('bdy_ice_dyn')
[8586]	318	!
[11210]	319	llsend2(:) = .false. ; llrecv2(:) = .false.
	320	llsend3(:) = .false. ; llrecv3(:) = .false.
[11191]	321	DO ir = 1, 0, -1
	322	DO jbdy = 1, nb_bdy
[8586]	323	!
[11191]	324	SELECT CASE( cn_ice(jbdy) )
	325	!
	326	CASE('none')
	327	CYCLE
	328	!
	329	CASE('frs')
	330	!
	331	IF( nn_ice_dta(jbdy) == 0 ) CYCLE ! case ice boundaries = initial conditions
	332	! ! do not change ice velocity (it is only computed by rheology)
	333	SELECT CASE ( cd_type )
	334	!
	335	CASE ( 'U' )
	336	jgrd = 2 ! u velocity
	337	IF( ir == 0 ) THEN ; ibeg = 1 ; iend = idx_bdy(jbdy)%nblenrim0(jgrd)
	338	ELSE ; ibeg = idx_bdy(jbdy)%nblenrim0(jgrd)+1 ; iend = idx_bdy(jbdy)%nblenrim(jgrd)
[11048]	339	END IF
[11191]	340	DO i_bdy = ibeg, iend
	341	ji = idx_bdy(jbdy)%nbi(i_bdy,jgrd)
	342	jj = idx_bdy(jbdy)%nbj(i_bdy,jgrd)
	343	zflag = idx_bdy(jbdy)%flagu(i_bdy,jgrd)
	344	! i-1 i i \| ! i i i+1 \| ! i i i+1 \|
	345	! > ice > \| ! o > ice \| ! o > o \|
	346	! => set at u_ice(i-1) ! => set to O ! => unchanged
	347	IF( zflag == -1. .AND. ji > 1 .AND. ji < jpi ) THEN
	348	IF ( vt_i(ji ,jj) > 0. ) THEN ; u_ice(ji,jj) = u_ice(ji-1,jj)
	349	ELSEIF( vt_i(ji+1,jj) > 0. ) THEN ; u_ice(ji,jj) = 0._wp
	350	END IF
[11048]	351	END IF
[11191]	352	! \| i i+1 i+1 ! \| i i i+1 ! \| i i i+1
	353	! \| > ice > ! \| ice > o ! \| o > o
	354	! => set at u_ice(i+1) ! => set to O ! => unchanged
	355	IF( zflag == 1. .AND. ji+1 < jpi+1 ) THEN
	356	IF ( vt_i(ji+1,jj) > 0. ) THEN ; u_ice(ji,jj) = u_ice(ji+1,jj)
	357	ELSEIF( vt_i(ji ,jj) > 0. ) THEN ; u_ice(ji,jj) = 0._wp
	358	END IF
	359	END IF
	360	!
	361	IF( zflag == 0. ) u_ice(ji,jj) = 0._wp ! u_ice = 0 if north/south bdy
	362	!
	363	END DO
	364	!
	365	CASE ( 'V' )
	366	jgrd = 3 ! v velocity
	367	IF( ir == 0 ) THEN ; ibeg = 1 ; iend = idx_bdy(jbdy)%nblenrim0(jgrd)
	368	ELSE ; ibeg = idx_bdy(jbdy)%nblenrim0(jgrd)+1 ; iend = idx_bdy(jbdy)%nblenrim(jgrd)
[11048]	369	END IF
[11191]	370	DO i_bdy = ibeg, iend
	371	ji = idx_bdy(jbdy)%nbi(i_bdy,jgrd)
	372	jj = idx_bdy(jbdy)%nbj(i_bdy,jgrd)
	373	zflag = idx_bdy(jbdy)%flagv(i_bdy,jgrd)
	374	! ¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨ ! ¨¨¨¨ïce¨¨¨(jj+1)¨¨ ! ¨¨¨¨¨¨ö¨¨¨¨(jj+1)
	375	! ^ (jj ) ! ^ (jj ) ! ^ (jj )
	376	! ice (jj ) ! o (jj ) ! o (jj )
	377	! ^ (jj-1) ! !
	378	! => set to u_ice(jj-1) ! => set to 0 ! => unchanged
	379	IF( zflag == -1. .AND. jj > 1 .AND. jj < jpj ) THEN
	380	IF ( vt_i(ji,jj ) > 0. ) THEN ; v_ice(ji,jj) = v_ice(ji,jj-1)
	381	ELSEIF( vt_i(ji,jj+1) > 0. ) THEN ; v_ice(ji,jj) = 0._wp
	382	END IF
[11048]	383	END IF
[11191]	384	! ^ (jj+1) ! !
	385	! ice (jj+1) ! o (jj+1) ! o (jj+1)
	386	! ^ (jj ) ! ^ (jj ) ! ^ (jj )
	387	! ________________ ! ____ice___(jj )_ ! _____o____(jj )
	388	! => set to u_ice(jj+1) ! => set to 0 ! => unchanged
	389	IF( zflag == 1. .AND. jj < jpj ) THEN
	390	IF ( vt_i(ji,jj+1) > 0. ) THEN ; v_ice(ji,jj) = v_ice(ji,jj+1)
	391	ELSEIF( vt_i(ji,jj ) > 0. ) THEN ; v_ice(ji,jj) = 0._wp
	392	END IF
	393	END IF
	394	!
	395	IF( zflag == 0. ) v_ice(ji,jj) = 0._wp ! v_ice = 0 if west/east bdy
	396	!
	397	END DO
[8586]	398	!
[11191]	399	END SELECT
[8586]	400	!
[11191]	401	CASE DEFAULT
	402	CALL ctl_stop( 'bdy_ice_dyn : unrecognised option for open boundaries for ice fields' )
[8586]	403	END SELECT
	404	!
[11191]	405	END DO ! jbdy
[8586]	406	!
[11191]	407	SELECT CASE ( cd_type )
	408	CASE ( 'U' )
[11210]	409	IF( nn_hls > 1 .AND. ir == 1 ) CYCLE ! at least 2 halos will be corrected -> no need to correct rim 1 before rim 0
	410	IF( nn_hls == 1 ) THEN ; llsend2(:) = .false. ; llrecv2(:) = .false. ; END IF
[11191]	411	DO jbdy = 1, nb_bdy
	412	IF( cn_ice(jbdy) == 'frs' .AND. nn_ice_dta(jbdy) /= 0 ) THEN
	413	llsend2(:) = llsend2(:) .OR. lsend_bdyint(jbdy,2,:,ir) ! possibly every direction, U points
	414	llsend2(1) = llsend2(1) .OR. lsend_bdyext(jbdy,2,1,ir) ! neighbour might search point towards its west bdy
	415	llrecv2(:) = llrecv2(:) .OR. lrecv_bdyint(jbdy,2,:,ir) ! possibly every direction, U points
	416	llrecv2(2) = llrecv2(2) .OR. lrecv_bdyext(jbdy,2,2,ir) ! might search point towards east bdy
	417	END IF
	418	END DO
	419	IF( ANY(llsend2) .OR. ANY(llrecv2) ) THEN ! if need to send/recv in at least one direction
[11195]	420	CALL lbc_lnk( 'bdyice', u_ice, 'U', -1., kfillmode=jpfillnothing ,lsend=llsend2, lrecv=llrecv2 )
[11067]	421	END IF
[11191]	422	CASE ( 'V' )
[11210]	423	IF( nn_hls > 1 .AND. ir == 1 ) CYCLE ! at least 2 halos will be corrected -> no need to correct rim 1 before rim 0
	424	IF( nn_hls == 1 ) THEN ; llsend3(:) = .false. ; llrecv3(:) = .false. ; END IF
[11191]	425	DO jbdy = 1, nb_bdy
	426	IF( cn_ice(jbdy) == 'frs' .AND. nn_ice_dta(jbdy) /= 0 ) THEN
	427	llsend3(:) = llsend3(:) .OR. lsend_bdyint(jbdy,3,:,ir) ! possibly every direction, V points
	428	llsend3(3) = llsend3(3) .OR. lsend_bdyext(jbdy,3,3,ir) ! neighbour might search point towards its south bdy
	429	llrecv3(:) = llrecv3(:) .OR. lrecv_bdyint(jbdy,3,:,ir) ! possibly every direction, V points
	430	llrecv3(4) = llrecv3(4) .OR. lrecv_bdyext(jbdy,3,4,ir) ! might search point towards north bdy
	431	END IF
	432	END DO
	433	IF( ANY(llsend3) .OR. ANY(llrecv3) ) THEN ! if need to send/recv in at least one direction
[11195]	434	CALL lbc_lnk( 'bdyice', v_ice, 'V', -1., kfillmode=jpfillnothing ,lsend=llsend3, lrecv=llrecv3 )
[11067]	435	END IF
[11191]	436	END SELECT
	437	END DO ! ir
[11067]	438	!
[9905]	439	IF( ln_timing ) CALL timing_stop('bdy_ice_dyn')
	440	!
[8586]	441	END SUBROUTINE bdy_ice_dyn
	442
	443	#else
	444	!!---------------------------------------------------------------------------------
	445	!! Default option Empty module
	446	!!---------------------------------------------------------------------------------
	447	CONTAINS
	448	SUBROUTINE bdy_ice( kt ) ! Empty routine
[9927]	449	IMPLICIT NONE
	450	INTEGER, INTENT( in ) :: kt
[8586]	451	WRITE(,) 'bdy_ice: You should not have seen this print! error?', kt
	452	END SUBROUTINE bdy_ice
	453	#endif
	454
	455	!!=================================================================================
	456	END MODULE bdyice

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

Download in other formats: