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sbcmod.F90 in branches/2015/dev_r5204_CNRS_PISCES_dcy/NEMOGCM/NEMO/OPA_SRC/SBC – NEMO

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source: branches/2015/dev_r5204_CNRS_PISCES_dcy/NEMOGCM/NEMO/OPA_SRC/SBC/sbcmod.F90 @ 5206

Last change on this file since 5206 was 5206, checked in by cetlod, 9 years ago
First improvment of diurnal cycle for passive tracers, see ticket #1484
Property svn:keywords set to `Id`
File size: 27.9 KB

Rev	Line
[888]	1	MODULE sbcmod
	2	!!======================================================================
	3	!! * MODULE sbcmod *
	4	!! Surface module : provide to the ocean its surface boundary condition
	5	!!======================================================================
[2528]	6	!! History : 3.0 ! 2006-07 (G. Madec) Original code
	7	!! 3.1 ! 2008-08 (S. Masson, A. Caubel, E. Maisonnave, G. Madec) coupled interface
	8	!! 3.3 ! 2010-04 (M. Leclair, G. Madec) Forcing averaged over 2 time steps
	9	!! 3.3 ! 2010-10 (S. Masson) add diurnal cycle
	10	!! 3.3 ! 2010-09 (D. Storkey) add ice boundary conditions (BDY)
	11	!! - ! 2010-11 (G. Madec) ice-ocean stress always computed at each ocean time-step
	12	!! - ! 2010-10 (J. Chanut, C. Bricaud, G. Madec) add the surface pressure forcing
[3294]	13	!! 3.4 ! 2011-11 (C. Harris) CICE added as an option
[3625]	14	!! 3.5 ! 2012-11 (A. Coward, G. Madec) Rethink of heat, mass and salt surface fluxes
[5120]	15	!! 3.6 ! 2014-11 (P. Mathiot, C. Harris) add ice shelves melting
[888]	16	!!----------------------------------------------------------------------
	17
	18	!!----------------------------------------------------------------------
	19	!! sbc_init : read namsbc namelist
[1037]	20	!! sbc : surface ocean momentum, heat and freshwater boundary conditions
[888]	21	!!----------------------------------------------------------------------
[2528]	22	USE oce ! ocean dynamics and tracers
	23	USE dom_oce ! ocean space and time domain
	24	USE phycst ! physical constants
	25	USE sbc_oce ! Surface boundary condition: ocean fields
[5206]	26	USE trc_oce ! shared ocean-passive tracers variables
[2528]	27	USE sbc_ice ! Surface boundary condition: ice fields
	28	USE sbcdcy ! surface boundary condition: diurnal cycle
	29	USE sbcssm ! surface boundary condition: sea-surface mean variables
	30	USE sbcapr ! surface boundary condition: atmospheric pressure
	31	USE sbcana ! surface boundary condition: analytical formulation
	32	USE sbcflx ! surface boundary condition: flux formulation
	33	USE sbcblk_clio ! surface boundary condition: bulk formulation : CLIO
	34	USE sbcblk_core ! surface boundary condition: bulk formulation : CORE
[3294]	35	USE sbcblk_mfs ! surface boundary condition: bulk formulation : MFS
[2528]	36	USE sbcice_if ! surface boundary condition: ice-if sea-ice model
	37	USE sbcice_lim ! surface boundary condition: LIM 3.0 sea-ice model
	38	USE sbcice_lim_2 ! surface boundary condition: LIM 2.0 sea-ice model
[3294]	39	USE sbcice_cice ! surface boundary condition: CICE sea-ice model
[2528]	40	USE sbccpl ! surface boundary condition: coupled florulation
	41	USE sbcssr ! surface boundary condition: sea surface restoring
	42	USE sbcrnf ! surface boundary condition: runoffs
[4990]	43	USE sbcisf ! surface boundary condition: ice shelf
[2528]	44	USE sbcfwb ! surface boundary condition: freshwater budget
	45	USE closea ! closed sea
[3609]	46	USE icbstp ! Icebergs!
[888]	47
[2528]	48	USE prtctl ! Print control (prt_ctl routine)
	49	USE iom ! IOM library
	50	USE in_out_manager ! I/O manager
[2715]	51	USE lib_mpp ! MPP library
[3294]	52	USE timing ! Timing
	53	USE sbcwave ! Wave module
[888]	54
	55	IMPLICIT NONE
	56	PRIVATE
	57
	58	PUBLIC sbc ! routine called by step.F90
[1725]	59	PUBLIC sbc_init ! routine called by opa.F90
[888]	60
	61	INTEGER :: nsbc ! type of surface boundary condition (deduced from namsbc informations)
	62
	63	!! * Substitutions
	64	# include "domzgr_substitute.h90"
	65	!!----------------------------------------------------------------------
[2715]	66	!! NEMO/OPA 4.0 , NEMO-consortium (2011)
[1146]	67	!! $Id$
[2715]	68	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[888]	69	!!----------------------------------------------------------------------
	70	CONTAINS
	71
	72	SUBROUTINE sbc_init
	73	!!---------------------------------------------------------------------
	74	!! * ROUTINE sbc_init *
	75	!!
	76	!! ** Purpose : Initialisation of the ocean surface boundary computation
	77	!!
	78	!! ** Method : Read the namsbc namelist and set derived parameters
[3607]	79	!! Call init routines for all other SBC modules that have one
[888]	80	!!
	81	!! ** Action : - read namsbc parameters
	82	!! - nsbc: type of sbc
	83	!!----------------------------------------------------------------------
[2715]	84	INTEGER :: icpt ! local integer
[1037]	85	!!
[4990]	86	NAMELIST/namsbc/ nn_fsbc , ln_ana , ln_flx, ln_blk_clio, ln_blk_core, &
[3625]	87	& ln_blk_mfs, ln_apr_dyn, nn_ice, nn_ice_embd, ln_dm2dc , ln_rnf, &
[4990]	88	& ln_ssr , nn_isf , nn_fwb , ln_cdgw , ln_wave , ln_sdw, nn_lsm, nn_limflx
[4147]	89	INTEGER :: ios
[1037]	90	!!----------------------------------------------------------------------
[888]	91
	92	IF(lwp) THEN
	93	WRITE(numout,*)
	94	WRITE(numout,*) 'sbc_init : surface boundary condition setting'
	95	WRITE(numout,*) '~~~~~~~~ '
	96	ENDIF
	97
[4147]	98	REWIND( numnam_ref ) ! Namelist namsbc in reference namelist : Surface boundary
	99	READ ( numnam_ref, namsbc, IOSTAT = ios, ERR = 901)
	100	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc in reference namelist', lwp )
[888]	101
[4147]	102	REWIND( numnam_cfg ) ! Namelist namsbc in configuration namelist : Parameters of the run
	103	READ ( numnam_cfg, namsbc, IOSTAT = ios, ERR = 902 )
	104	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc in configuration namelist', lwp )
[4624]	105	IF(lwm) WRITE ( numond, namsbc )
[4147]	106
[2528]	107	! ! overwrite namelist parameter using CPP key information
	108	IF( Agrif_Root() ) THEN ! AGRIF zoom
	109	IF( lk_lim2 ) nn_ice = 2
	110	IF( lk_lim3 ) nn_ice = 3
[3294]	111	IF( lk_cice ) nn_ice = 4
[1242]	112	ENDIF
[2528]	113	IF( cp_cfg == 'gyre' ) THEN ! GYRE configuration
[888]	114	ln_ana = .TRUE.
	115	nn_ice = 0
	116	ENDIF
[4147]	117
[2528]	118	IF(lwp) THEN ! Control print
[1218]	119	WRITE(numout,*) ' Namelist namsbc (partly overwritten with CPP key setting)'
[888]	120	WRITE(numout,*) ' frequency update of sbc (and ice) nn_fsbc = ', nn_fsbc
	121	WRITE(numout,*) ' Type of sbc : '
	122	WRITE(numout,*) ' analytical formulation ln_ana = ', ln_ana
	123	WRITE(numout,*) ' flux formulation ln_flx = ', ln_flx
	124	WRITE(numout,*) ' CLIO bulk formulation ln_blk_clio = ', ln_blk_clio
[3294]	125	WRITE(numout,*) ' CORE bulk formulation ln_blk_core = ', ln_blk_core
	126	WRITE(numout,*) ' MFS bulk formulation ln_blk_mfs = ', ln_blk_mfs
[4990]	127	WRITE(numout,*) ' coupled formulation (T if key_oasis3) lk_cpl = ', lk_cpl
	128	WRITE(numout,*) ' Multicategory heat flux formulation (LIM3) nn_limflx = ', nn_limflx
[888]	129	WRITE(numout,*) ' Misc. options of sbc : '
[2528]	130	WRITE(numout,*) ' Patm gradient added in ocean & ice Eqs. ln_apr_dyn = ', ln_apr_dyn
[1037]	131	WRITE(numout,*) ' ice management in the sbc (=0/1/2/3) nn_ice = ', nn_ice
[3625]	132	WRITE(numout,*) ' ice-ocean embedded/levitating (=0/1/2) nn_ice_embd = ', nn_ice_embd
[888]	133	WRITE(numout,*) ' daily mean to diurnal cycle qsr ln_dm2dc = ', ln_dm2dc
	134	WRITE(numout,*) ' runoff / runoff mouths ln_rnf = ', ln_rnf
[4990]	135	WRITE(numout,*) ' iceshelf formulation nn_isf = ', nn_isf
[888]	136	WRITE(numout,*) ' Sea Surface Restoring on SST and/or SSS ln_ssr = ', ln_ssr
	137	WRITE(numout,*) ' FreshWater Budget control (=0/1/2) nn_fwb = ', nn_fwb
[1601]	138	WRITE(numout,*) ' closed sea (=0/1) (set in namdom) nn_closea = ', nn_closea
[4230]	139	WRITE(numout,*) ' n. of iterations if land-sea-mask applied nn_lsm = ', nn_lsm
[888]	140	ENDIF
	141
[4990]	142	! LIM3 Multi-category heat flux formulation
	143	SELECT CASE ( nn_limflx)
	144	CASE ( -1 )
	145	IF(lwp) WRITE(numout,*) ' Use of per-category fluxes (nn_limflx = -1) '
	146	CASE ( 0 )
	147	IF(lwp) WRITE(numout,*) ' Average per-category fluxes (nn_limflx = 0) '
	148	CASE ( 1 )
	149	IF(lwp) WRITE(numout,*) ' Average then redistribute per-category fluxes (nn_limflx = 1) '
	150	CASE ( 2 )
	151	IF(lwp) WRITE(numout,*) ' Redistribute a single flux over categories (nn_limflx = 2) '
[4161]	152	END SELECT
	153	!
[5206]	154	IF( ln_dm2dc .AND. lk_top ) THEN
	155	l_trcdm2dc = .TRUE.
	156	IF( lwp ) THEN
	157	WRITE(numout,*) "In case of diurnal cycle coupled with passive tracers"
	158	WRITE(numout,*) "Computation of a daily mean shortwave for some biogeochemical models"
[4607]	159	ENDIF
[5206]	160	ELSE
	161	l_trcdm2dc = .FALSE.
[4607]	162	ENDIF
	163
[2715]	164	! ! allocate sbc arrays
	165	IF( sbc_oce_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_init : unable to allocate sbc_oce arrays' )
	166
[2528]	167	! ! Checks:
[1218]	168	IF( .NOT. ln_rnf ) THEN ! no specific treatment in vicinity of river mouths
	169	ln_rnf_mouth = .false.
[2715]	170	IF( sbc_rnf_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_init : unable to allocate sbc_rnf arrays' )
[1218]	171	nkrnf = 0
[3625]	172	rnf (:,:) = 0.0_wp
[4365]	173	rnf_b (:,:) = 0.0_wp
[3625]	174	rnfmsk (:,:) = 0.0_wp
	175	rnfmsk_z(:) = 0.0_wp
[1116]	176	ENDIF
[4990]	177	IF( nn_isf .EQ. 0 ) THEN ! no specific treatment in vicinity of ice shelf
	178	IF( sbc_isf_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_init : unable to allocate sbc_isf arrays' )
	179	fwfisf (:,:) = 0.0_wp
[5120]	180	fwfisf_b(:,:) = 0.0_wp
[4990]	181	END IF
[1218]	182	IF( nn_ice == 0 ) fr_i(:,:) = 0.e0 ! no ice in the domain, ice fraction is always zero
[1037]	183
[3625]	184	sfx(:,:) = 0.0_wp ! the salt flux due to freezing/melting will be computed (i.e. will be non-zero)
	185	! only if sea-ice is present
[4148]	186
	187	fmmflx(:,:) = 0.0_wp ! freezing-melting array initialisation
[4822]	188
	189	taum(:,:) = 0.0_wp ! Initialise taum for use in gls in case of reduced restart
[3625]	190
[1218]	191	! ! restartability
	192	IF( MOD( nitend - nit000 + 1, nn_fsbc) /= 0 .OR. &
	193	MOD( nstock , nn_fsbc) /= 0 ) THEN
	194	WRITE(ctmp1,*) 'experiment length (', nitend - nit000 + 1, ') or nstock (', nstock, &
	195	& ' is NOT a multiple of nn_fsbc (', nn_fsbc, ')'
	196	CALL ctl_stop( ctmp1, 'Impossible to properly do model restart' )
[888]	197	ENDIF
[1218]	198	!
	199	IF( MOD( rday, REAL(nn_fsbc, wp) * rdt ) /= 0 ) &
	200	& CALL ctl_warn( 'nn_fsbc is NOT a multiple of the number of time steps in a day' )
	201	!
[3294]	202	IF( ( nn_ice == 2 .OR. nn_ice ==3 ) .AND. .NOT.( ln_blk_clio .OR. ln_blk_core .OR. lk_cpl ) ) &
	203	& CALL ctl_stop( 'LIM sea-ice model requires a bulk formulation or coupled configuration' )
	204	IF( nn_ice == 4 .AND. .NOT.( ln_blk_core .OR. lk_cpl ) ) &
	205	& CALL ctl_stop( 'CICE sea-ice model requires ln_blk_core or lk_cpl' )
[3625]	206	IF( nn_ice == 4 .AND. lk_agrif ) &
	207	& CALL ctl_stop( 'CICE sea-ice model not currently available with AGRIF' )
	208	IF( ( nn_ice == 3 .OR. nn_ice == 4 ) .AND. nn_ice_embd == 0 ) &
[3740]	209	& CALL ctl_stop( 'LIM3 and CICE sea-ice models require nn_ice_embd = 1 or 2' )
[4990]	210	IF( ( nn_ice /= 3 ) .AND. ( nn_limflx >= 0 ) ) &
	211	& WRITE(numout,*) 'The nn_limflx>=0 option has no effect if sea ice model is not LIM3'
	212	IF( ( nn_ice == 3 ) .AND. ( lk_cpl ) .AND. ( ( nn_limflx == -1 ) .OR. ( nn_limflx == 1 ) ) ) &
	213	& CALL ctl_stop( 'The chosen nn_limflx for LIM3 in coupled mode must be 0 or 2' )
	214	IF( ( nn_ice == 3 ) .AND. ( .NOT. lk_cpl ) .AND. ( nn_limflx == 2 ) ) &
	215	& CALL ctl_stop( 'The chosen nn_limflx for LIM3 in forced mode cannot be 2' )
	216
[2528]	217	IF( ln_dm2dc ) nday_qsr = -1 ! initialisation flag
	218
	219	IF( ln_dm2dc .AND. .NOT.( ln_flx .OR. ln_blk_core ) ) &
	220	& CALL ctl_stop( 'diurnal cycle into qsr field from daily values requires a flux or core-bulk formulation' )
	221
	222	IF( ln_dm2dc .AND. ( ( NINT(rday) / ( nn_fsbc * NINT(rdt) ) ) < 8 ) ) &
	223	& CALL ctl_warn( 'diurnal cycle for qsr: the sampling of the diurnal cycle is too small...' )
[3294]	224
[3680]	225	IF ( ln_wave ) THEN
	226	!Activated wave module but neither drag nor stokes drift activated
	227	IF ( .NOT.(ln_cdgw .OR. ln_sdw) ) THEN
	228	CALL ctl_warn( 'Ask for wave coupling but nor drag coefficient (ln_cdgw=F) neither stokes drift activated (ln_sdw=F)' )
	229	!drag coefficient read from wave model definable only with mfs bulk formulae and core
	230	ELSEIF (ln_cdgw .AND. .NOT.(ln_blk_mfs .OR. ln_blk_core) ) THEN
	231	CALL ctl_stop( 'drag coefficient read from wave model definable only with mfs bulk formulae and core')
	232	ENDIF
	233	ELSE
	234	IF ( ln_cdgw .OR. ln_sdw ) &
	235	& CALL ctl_stop('Not Activated Wave Module (ln_wave=F) but &
	236	& asked coupling with drag coefficient (ln_cdgw =T) or Stokes drift (ln_sdw=T) ')
	237	ENDIF
[2528]	238
	239	! ! Choice of the Surface Boudary Condition (set nsbc)
[888]	240	icpt = 0
[4990]	241	IF( ln_ana ) THEN ; nsbc = jp_ana ; icpt = icpt + 1 ; ENDIF ! analytical formulation
	242	IF( ln_flx ) THEN ; nsbc = jp_flx ; icpt = icpt + 1 ; ENDIF ! flux formulation
	243	IF( ln_blk_clio ) THEN ; nsbc = jp_clio ; icpt = icpt + 1 ; ENDIF ! CLIO bulk formulation
	244	IF( ln_blk_core ) THEN ; nsbc = jp_core ; icpt = icpt + 1 ; ENDIF ! CORE bulk formulation
	245	IF( ln_blk_mfs ) THEN ; nsbc = jp_mfs ; icpt = icpt + 1 ; ENDIF ! MFS bulk formulation
	246	IF( lk_cpl ) THEN ; nsbc = jp_cpl ; icpt = icpt + 1 ; ENDIF ! Coupled formulation
	247	IF( cp_cfg == 'gyre') THEN ; nsbc = jp_gyre ; ENDIF ! GYRE analytical formulation
	248	IF( lk_esopa ) nsbc = jp_esopa ! esopa test, ALL formulations
[2528]	249	!
[888]	250	IF( icpt /= 1 .AND. .NOT.lk_esopa ) THEN
	251	WRITE(numout,*)
	252	WRITE(numout,*) ' E R R O R in setting the sbc, one and only one namelist/CPP key option '
	253	WRITE(numout,*) ' must be choosen. You choose ', icpt, ' option(s)'
	254	WRITE(numout,*) ' We stop'
	255	nstop = nstop + 1
	256	ENDIF
	257	IF(lwp) THEN
	258	WRITE(numout,*)
[4990]	259	IF( nsbc == jp_esopa ) WRITE(numout,*) ' ESOPA test All surface boundary conditions'
	260	IF( nsbc == jp_gyre ) WRITE(numout,*) ' GYRE analytical formulation'
	261	IF( nsbc == jp_ana ) WRITE(numout,*) ' analytical formulation'
	262	IF( nsbc == jp_flx ) WRITE(numout,*) ' flux formulation'
	263	IF( nsbc == jp_clio ) WRITE(numout,*) ' CLIO bulk formulation'
	264	IF( nsbc == jp_core ) WRITE(numout,*) ' CORE bulk formulation'
	265	IF( nsbc == jp_cpl ) WRITE(numout,*) ' coupled formulation'
	266	IF( nsbc == jp_mfs ) WRITE(numout,*) ' MFS Bulk formulation'
[888]	267	ENDIF
	268	!
[4990]	269	CALL sbc_ssm_init ! Sea-surface mean fields initialisation
[4152]	270	!
[4990]	271	IF( ln_ssr ) CALL sbc_ssr_init ! Sea-Surface Restoring initialisation
[3764]	272	!
[5123]	273	IF( nn_ice == 3 ) CALL sbc_lim_init ! LIM3 initialisation
	274
[4990]	275	IF( nn_ice == 4 ) CALL cice_sbc_init( nsbc ) ! CICE initialisation
[3764]	276	!
[4990]	277	IF( nsbc == jp_cpl ) CALL sbc_cpl_init (nn_ice) ! OASIS initialisation. must be done before first time step
	278
[888]	279	END SUBROUTINE sbc_init
	280
	281
	282	SUBROUTINE sbc( kt )
	283	!!---------------------------------------------------------------------
	284	!! * ROUTINE sbc *
	285	!!
	286	!! ** Purpose : provide at each time-step the ocean surface boundary
	287	!! condition (momentum, heat and freshwater fluxes)
	288	!!
	289	!! ** Method : blah blah to be written ?????????
	290	!! CAUTION : never mask the surface stress field (tke sbc)
	291	!!
[2528]	292	!! ** Action : - set the ocean surface boundary condition at before and now
	293	!! time step, i.e.
[3625]	294	!! utau_b, vtau_b, qns_b, qsr_b, emp_n, sfx_b, qrp_b, erp_b
	295	!! utau , vtau , qns , qsr , emp , sfx , qrp , erp
[1037]	296	!! - updte the ice fraction : fr_i
[888]	297	!!----------------------------------------------------------------------
	298	INTEGER, INTENT(in) :: kt ! ocean time step
	299	!!---------------------------------------------------------------------
[3294]	300	!
	301	IF( nn_timing == 1 ) CALL timing_start('sbc')
	302	!
[2528]	303	! ! ---------------------------------------- !
	304	IF( kt /= nit000 ) THEN ! Swap of forcing fields !
	305	! ! ---------------------------------------- !
	306	utau_b(:,:) = utau(:,:) ! Swap the ocean forcing fields
	307	vtau_b(:,:) = vtau(:,:) ! (except at nit000 where before fields
	308	qns_b (:,:) = qns (:,:) ! are set at the end of the routine)
	309	! The 3D heat content due to qsr forcing is treated in traqsr
	310	! qsr_b (:,:) = qsr (:,:)
[3625]	311	emp_b(:,:) = emp(:,:)
	312	sfx_b(:,:) = sfx(:,:)
[2528]	313	ENDIF
	314	! ! ---------------------------------------- !
	315	! ! forcing field computation !
	316	! ! ---------------------------------------- !
[1482]	317	!
[2528]	318	IF( ln_apr_dyn ) CALL sbc_apr( kt ) ! atmospheric pressure provided at kt+0.5*nn_fsbc
	319	! (caution called before sbc_ssm)
	320	!
	321	CALL sbc_ssm( kt ) ! ocean sea surface variables (sst_m, sss_m, ssu_m, ssv_m)
	322	! ! averaged over nf_sbc time-step
[888]	323
[3680]	324	IF (ln_wave) CALL sbc_wave( kt )
[2528]	325	!== sbc formulation ==!
	326
	327	SELECT CASE( nsbc ) ! Compute ocean surface boundary condition
[3625]	328	! ! (i.e. utau,vtau, qns, qsr, emp, sfx)
[4990]	329	CASE( jp_gyre ) ; CALL sbc_gyre ( kt ) ! analytical formulation : GYRE configuration
	330	CASE( jp_ana ) ; CALL sbc_ana ( kt ) ! analytical formulation : uniform sbc
	331	CASE( jp_flx ) ; CALL sbc_flx ( kt ) ! flux formulation
	332	CASE( jp_clio ) ; CALL sbc_blk_clio( kt ) ! bulk formulation : CLIO for the ocean
	333	CASE( jp_core ) ; CALL sbc_blk_core( kt ) ! bulk formulation : CORE for the ocean
	334	CASE( jp_cpl ) ; CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! coupled formulation
	335	CASE( jp_mfs ) ; CALL sbc_blk_mfs ( kt ) ! bulk formulation : MFS for the ocean
	336	CASE( jp_esopa )
	337	CALL sbc_ana ( kt ) ! ESOPA, test ALL the formulations
	338	CALL sbc_gyre ( kt ) !
	339	CALL sbc_flx ( kt ) !
	340	CALL sbc_blk_clio( kt ) !
	341	CALL sbc_blk_core( kt ) !
	342	CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) !
[888]	343	END SELECT
	344
[2528]	345	! !== Misc. Options ==!
[888]	346
[3632]	347	SELECT CASE( nn_ice ) ! Update heat and freshwater fluxes over sea-ice areas
	348	CASE( 1 ) ; CALL sbc_ice_if ( kt ) ! Ice-cover climatology ("Ice-if" model)
	349	CASE( 2 ) ; CALL sbc_ice_lim_2( kt, nsbc ) ! LIM-2 ice model
	350	CASE( 3 ) ; CALL sbc_ice_lim ( kt, nsbc ) ! LIM-3 ice model
[4205]	351	CASE( 4 ) ; CALL sbc_ice_cice ( kt, nsbc ) ! CICE ice model
[1037]	352	END SELECT
[888]	353
[3632]	354	IF( ln_icebergs ) CALL icb_stp( kt ) ! compute icebergs
[3609]	355
[4990]	356	IF( nn_isf /= 0 ) CALL sbc_isf( kt ) ! compute iceshelves
	357
[3632]	358	IF( ln_rnf ) CALL sbc_rnf( kt ) ! add runoffs to fresh water fluxes
[1061]	359
[3632]	360	IF( ln_ssr ) CALL sbc_ssr( kt ) ! add SST/SSS damping term
[888]	361
[3632]	362	IF( nn_fwb /= 0 ) CALL sbc_fwb( kt, nn_fwb, nn_fsbc ) ! control the freshwater budget
[888]	363
[3632]	364	IF( nn_closea == 1 ) CALL sbc_clo( kt ) ! treatment of closed sea in the model domain
	365	! ! (update freshwater fluxes)
[2502]	366	!RBbug do not understand why see ticket 667
[4333]	367	!clem-bugsal CALL lbc_lnk( emp, 'T', 1. )
[2502]	368	!
[2528]	369	IF( kt == nit000 ) THEN ! set the forcing field at nit000 - 1 !
	370	! ! ---------------------------------------- !
	371	IF( ln_rstart .AND. & !* Restart: read in restart file
	372	& iom_varid( numror, 'utau_b', ldstop = .FALSE. ) > 0 ) THEN
	373	IF(lwp) WRITE(numout,*) ' nit000-1 surface forcing fields red in the restart file'
	374	CALL iom_get( numror, jpdom_autoglo, 'utau_b', utau_b ) ! before i-stress (U-point)
	375	CALL iom_get( numror, jpdom_autoglo, 'vtau_b', vtau_b ) ! before j-stress (V-point)
	376	CALL iom_get( numror, jpdom_autoglo, 'qns_b' , qns_b ) ! before non solar heat flux (T-point)
	377	! The 3D heat content due to qsr forcing is treated in traqsr
[3625]	378	! CALL iom_get( numror, jpdom_autoglo, 'qsr_b' , qsr_b ) ! before solar heat flux (T-point)
	379	CALL iom_get( numror, jpdom_autoglo, 'emp_b', emp_b ) ! before freshwater flux (T-point)
	380	! To ensure restart capability with 3.3x/3.4 restart files !! to be removed in v3.6
	381	IF( iom_varid( numror, 'sfx_b', ldstop = .FALSE. ) > 0 ) THEN
	382	CALL iom_get( numror, jpdom_autoglo, 'sfx_b', sfx_b ) ! before salt flux (T-point)
	383	ELSE
	384	sfx_b (:,:) = sfx(:,:)
	385	ENDIF
[2528]	386	ELSE !* no restart: set from nit000 values
	387	IF(lwp) WRITE(numout,*) ' nit000-1 surface forcing fields set to nit000'
	388	utau_b(:,:) = utau(:,:)
	389	vtau_b(:,:) = vtau(:,:)
	390	qns_b (:,:) = qns (:,:)
[3625]	391	emp_b (:,:) = emp(:,:)
	392	sfx_b (:,:) = sfx(:,:)
[2528]	393	ENDIF
	394	ENDIF
	395	! ! ---------------------------------------- !
	396	IF( lrst_oce ) THEN ! Write in the ocean restart file !
	397	! ! ---------------------------------------- !
	398	IF(lwp) WRITE(numout,*)
	399	IF(lwp) WRITE(numout,*) 'sbc : ocean surface forcing fields written in ocean restart file ', &
	400	& 'at it= ', kt,' date= ', ndastp
	401	IF(lwp) WRITE(numout,*) '~~~~'
	402	CALL iom_rstput( kt, nitrst, numrow, 'utau_b' , utau )
	403	CALL iom_rstput( kt, nitrst, numrow, 'vtau_b' , vtau )
	404	CALL iom_rstput( kt, nitrst, numrow, 'qns_b' , qns )
	405	! The 3D heat content due to qsr forcing is treated in traqsr
	406	! CALL iom_rstput( kt, nitrst, numrow, 'qsr_b' , qsr )
	407	CALL iom_rstput( kt, nitrst, numrow, 'emp_b' , emp )
[3625]	408	CALL iom_rstput( kt, nitrst, numrow, 'sfx_b' , sfx )
[2528]	409	ENDIF
	410
	411	! ! ---------------------------------------- !
	412	! ! Outputs and control print !
	413	! ! ---------------------------------------- !
[1482]	414	IF( MOD( kt-1, nn_fsbc ) == 0 ) THEN
[2561]	415	CALL iom_put( "empmr" , emp - rnf ) ! upward water flux
[3625]	416	CALL iom_put( "saltflx", sfx ) ! downward salt flux
	417	! (includes virtual salt flux beneath ice
	418	! in linear free surface case)
[4148]	419	CALL iom_put( "fmmflx", fmmflx ) ! Freezing-melting water flux
[2561]	420	CALL iom_put( "qt" , qns + qsr ) ! total heat flux
	421	CALL iom_put( "qns" , qns ) ! solar heat flux
	422	CALL iom_put( "qsr" , qsr ) ! solar heat flux
[2528]	423	IF( nn_ice > 0 ) CALL iom_put( "ice_cover", fr_i ) ! ice fraction
[4990]	424	CALL iom_put( "taum" , taum ) ! wind stress module
	425	CALL iom_put( "wspd" , wndm ) ! wind speed module over free ocean or leads in presence of sea-ice
[1482]	426	ENDIF
	427	!
	428	CALL iom_put( "utau", utau ) ! i-wind stress (stress can be updated at
	429	CALL iom_put( "vtau", vtau ) ! j-wind stress each time step in sea-ice)
	430	!
[888]	431	IF(ln_ctl) THEN ! print mean trends (used for debugging)
[4990]	432	CALL prt_ctl(tab2d_1=fr_i , clinfo1=' fr_i - : ', mask1=tmask, ovlap=1 )
	433	CALL prt_ctl(tab2d_1=(emp-rnf + fwfisf), clinfo1=' emp-rnf - : ', mask1=tmask, ovlap=1 )
	434	CALL prt_ctl(tab2d_1=(sfx-rnf + fwfisf), clinfo1=' sfx-rnf - : ', mask1=tmask, ovlap=1 )
[3294]	435	CALL prt_ctl(tab2d_1=qns , clinfo1=' qns - : ', mask1=tmask, ovlap=1 )
	436	CALL prt_ctl(tab2d_1=qsr , clinfo1=' qsr - : ', mask1=tmask, ovlap=1 )
	437	CALL prt_ctl(tab3d_1=tmask , clinfo1=' tmask - : ', mask1=tmask, ovlap=1, kdim=jpk )
	438	CALL prt_ctl(tab3d_1=tsn(:,:,:,jp_tem), clinfo1=' sst - : ', mask1=tmask, ovlap=1, kdim=1 )
	439	CALL prt_ctl(tab3d_1=tsn(:,:,:,jp_sal), clinfo1=' sss - : ', mask1=tmask, ovlap=1, kdim=1 )
	440	CALL prt_ctl(tab2d_1=utau , clinfo1=' utau - : ', mask1=umask, &
	441	& tab2d_2=vtau , clinfo2=' vtau - : ', mask2=vmask, ovlap=1 )
[888]	442	ENDIF
[3294]	443
	444	IF( kt == nitend ) CALL sbc_final ! Close down surface module if necessary
[888]	445	!
[3294]	446	IF( nn_timing == 1 ) CALL timing_stop('sbc')
	447	!
[888]	448	END SUBROUTINE sbc
	449
[3764]	450
[3294]	451	SUBROUTINE sbc_final
	452	!!---------------------------------------------------------------------
	453	!! * ROUTINE sbc_final *
[3764]	454	!!
	455	!! ** Purpose : Finalize CICE (if used)
[3294]	456	!!---------------------------------------------------------------------
[3764]	457	!
[3294]	458	IF( nn_ice == 4 ) CALL cice_sbc_final
	459	!
	460	END SUBROUTINE sbc_final
	461
[888]	462	!!======================================================================
	463	END MODULE sbcmod

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