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sbcmod.F90 in trunk/NEMOGCM/NEMO/OPA_SRC/SBC – NEMO

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source: trunk/NEMOGCM/NEMO/OPA_SRC/SBC/sbcmod.F90 @ 4822

Last change on this file since 4822 was 4822, checked in by timgraham, 10 years ago
An extra change required in fix to #1402. taum must also be initialised.
Property svn:keywords set to `Id`
File size: 26.8 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
[888]	15	!!----------------------------------------------------------------------
	16
	17	!!----------------------------------------------------------------------
	18	!! sbc_init : read namsbc namelist
[1037]	19	!! sbc : surface ocean momentum, heat and freshwater boundary conditions
[888]	20	!!----------------------------------------------------------------------
[2528]	21	USE oce ! ocean dynamics and tracers
	22	USE dom_oce ! ocean space and time domain
	23	USE phycst ! physical constants
	24	USE sbc_oce ! Surface boundary condition: ocean fields
	25	USE sbc_ice ! Surface boundary condition: ice fields
	26	USE sbcdcy ! surface boundary condition: diurnal cycle
	27	USE sbcssm ! surface boundary condition: sea-surface mean variables
	28	USE sbcapr ! surface boundary condition: atmospheric pressure
	29	USE sbcana ! surface boundary condition: analytical formulation
	30	USE sbcflx ! surface boundary condition: flux formulation
	31	USE sbcblk_clio ! surface boundary condition: bulk formulation : CLIO
	32	USE sbcblk_core ! surface boundary condition: bulk formulation : CORE
[3294]	33	USE sbcblk_mfs ! surface boundary condition: bulk formulation : MFS
[2528]	34	USE sbcice_if ! surface boundary condition: ice-if sea-ice model
	35	USE sbcice_lim ! surface boundary condition: LIM 3.0 sea-ice model
	36	USE sbcice_lim_2 ! surface boundary condition: LIM 2.0 sea-ice model
[3294]	37	USE sbcice_cice ! surface boundary condition: CICE sea-ice model
[2528]	38	USE sbccpl ! surface boundary condition: coupled florulation
[1226]	39	USE cpl_oasis3, ONLY:lk_cpl ! are we in coupled mode?
[2528]	40	USE sbcssr ! surface boundary condition: sea surface restoring
	41	USE sbcrnf ! surface boundary condition: runoffs
	42	USE sbcfwb ! surface boundary condition: freshwater budget
	43	USE closea ! closed sea
[3609]	44	USE icbstp ! Icebergs!
[888]	45
[2528]	46	USE prtctl ! Print control (prt_ctl routine)
	47	USE iom ! IOM library
	48	USE in_out_manager ! I/O manager
[2715]	49	USE lib_mpp ! MPP library
[3294]	50	USE timing ! Timing
	51	USE sbcwave ! Wave module
[888]	52
	53	IMPLICIT NONE
	54	PRIVATE
	55
	56	PUBLIC sbc ! routine called by step.F90
[1725]	57	PUBLIC sbc_init ! routine called by opa.F90
[888]	58
	59	INTEGER :: nsbc ! type of surface boundary condition (deduced from namsbc informations)
	60
	61	!! * Substitutions
	62	# include "domzgr_substitute.h90"
	63	!!----------------------------------------------------------------------
[2715]	64	!! NEMO/OPA 4.0 , NEMO-consortium (2011)
[1146]	65	!! $Id$
[2715]	66	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[888]	67	!!----------------------------------------------------------------------
	68	CONTAINS
	69
	70	SUBROUTINE sbc_init
	71	!!---------------------------------------------------------------------
	72	!! * ROUTINE sbc_init *
	73	!!
	74	!! ** Purpose : Initialisation of the ocean surface boundary computation
	75	!!
	76	!! ** Method : Read the namsbc namelist and set derived parameters
[3607]	77	!! Call init routines for all other SBC modules that have one
[888]	78	!!
	79	!! ** Action : - read namsbc parameters
	80	!! - nsbc: type of sbc
	81	!!----------------------------------------------------------------------
[2715]	82	INTEGER :: icpt ! local integer
[1037]	83	!!
[3625]	84	NAMELIST/namsbc/ nn_fsbc , ln_ana , ln_flx, ln_blk_clio, ln_blk_core, ln_cpl, &
	85	& ln_blk_mfs, ln_apr_dyn, nn_ice, nn_ice_embd, ln_dm2dc , ln_rnf, &
[4230]	86	& ln_ssr , nn_fwb , ln_cdgw , ln_wave , ln_sdw, nn_lsm, cn_iceflx
[4147]	87	INTEGER :: ios
[1037]	88	!!----------------------------------------------------------------------
[888]	89
	90	IF(lwp) THEN
	91	WRITE(numout,*)
	92	WRITE(numout,*) 'sbc_init : surface boundary condition setting'
	93	WRITE(numout,*) '~~~~~~~~ '
	94	ENDIF
	95
[4147]	96	REWIND( numnam_ref ) ! Namelist namsbc in reference namelist : Surface boundary
	97	READ ( numnam_ref, namsbc, IOSTAT = ios, ERR = 901)
	98	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc in reference namelist', lwp )
[888]	99
[4147]	100	REWIND( numnam_cfg ) ! Namelist namsbc in configuration namelist : Parameters of the run
	101	READ ( numnam_cfg, namsbc, IOSTAT = ios, ERR = 902 )
	102	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc in configuration namelist', lwp )
[4624]	103	IF(lwm) WRITE ( numond, namsbc )
[4147]	104
[2528]	105	! ! overwrite namelist parameter using CPP key information
	106	IF( Agrif_Root() ) THEN ! AGRIF zoom
	107	IF( lk_lim2 ) nn_ice = 2
	108	IF( lk_lim3 ) nn_ice = 3
[3294]	109	IF( lk_cice ) nn_ice = 4
[1242]	110	ENDIF
[2528]	111	IF( cp_cfg == 'gyre' ) THEN ! GYRE configuration
[888]	112	ln_ana = .TRUE.
	113	nn_ice = 0
	114	ENDIF
[4147]	115
[2528]	116	IF(lwp) THEN ! Control print
[1218]	117	WRITE(numout,*) ' Namelist namsbc (partly overwritten with CPP key setting)'
[888]	118	WRITE(numout,*) ' frequency update of sbc (and ice) nn_fsbc = ', nn_fsbc
	119	WRITE(numout,*) ' Type of sbc : '
	120	WRITE(numout,*) ' analytical formulation ln_ana = ', ln_ana
	121	WRITE(numout,*) ' flux formulation ln_flx = ', ln_flx
	122	WRITE(numout,*) ' CLIO bulk formulation ln_blk_clio = ', ln_blk_clio
[3294]	123	WRITE(numout,*) ' CORE bulk formulation ln_blk_core = ', ln_blk_core
	124	WRITE(numout,*) ' MFS bulk formulation ln_blk_mfs = ', ln_blk_mfs
[888]	125	WRITE(numout,*) ' coupled formulation (T if key_sbc_cpl) ln_cpl = ', ln_cpl
[4161]	126	WRITE(numout,*) ' Flux handling over ice categories cn_iceflx = ', TRIM (cn_iceflx)
[888]	127	WRITE(numout,*) ' Misc. options of sbc : '
[2528]	128	WRITE(numout,*) ' Patm gradient added in ocean & ice Eqs. ln_apr_dyn = ', ln_apr_dyn
[1037]	129	WRITE(numout,*) ' ice management in the sbc (=0/1/2/3) nn_ice = ', nn_ice
[3625]	130	WRITE(numout,*) ' ice-ocean embedded/levitating (=0/1/2) nn_ice_embd = ', nn_ice_embd
[888]	131	WRITE(numout,*) ' daily mean to diurnal cycle qsr ln_dm2dc = ', ln_dm2dc
	132	WRITE(numout,*) ' runoff / runoff mouths ln_rnf = ', ln_rnf
	133	WRITE(numout,*) ' Sea Surface Restoring on SST and/or SSS ln_ssr = ', ln_ssr
	134	WRITE(numout,*) ' FreshWater Budget control (=0/1/2) nn_fwb = ', nn_fwb
[1601]	135	WRITE(numout,*) ' closed sea (=0/1) (set in namdom) nn_closea = ', nn_closea
[4230]	136	WRITE(numout,*) ' n. of iterations if land-sea-mask applied nn_lsm = ', nn_lsm
[888]	137	ENDIF
	138
[4205]	139	! Flux handling over ice categories
	140	#if defined key_coupled
[4161]	141	SELECT CASE ( TRIM (cn_iceflx))
	142	CASE ('ave')
	143	ln_iceflx_ave = .TRUE.
	144	ln_iceflx_linear = .FALSE.
	145	CASE ('linear')
	146	ln_iceflx_ave = .FALSE.
	147	ln_iceflx_linear = .TRUE.
	148	CASE default
	149	ln_iceflx_ave = .FALSE.
	150	ln_iceflx_linear = .FALSE.
	151	END SELECT
	152	IF(lwp) WRITE(numout,*) ' Fluxes averaged over all ice categories ln_iceflx_ave = ', ln_iceflx_ave
	153	IF(lwp) WRITE(numout,*) ' Fluxes distributed linearly over ice categories ln_iceflx_linear = ', ln_iceflx_linear
[4205]	154	#endif
[4161]	155	!
[4607]	156	#if defined key_top && ! defined key_offline
	157	ltrcdm2dc = (ln_dm2dc .AND. ln_blk_core .AND. nn_ice==2)
	158	IF( ltrcdm2dc )THEN
	159	IF(lwp)THEN
	160	WRITE(numout,*)"analytical diurnal cycle, core bulk formulation and LIM2 use: "
	161	WRITE(numout,*)"Diurnal cycle on physics but not in passive tracers"
	162	ENDIF
	163	ENDIF
	164	#else
	165	ltrcdm2dc = .FALSE.
	166	#endif
	167
	168	!
[2715]	169	! ! allocate sbc arrays
	170	IF( sbc_oce_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_init : unable to allocate sbc_oce arrays' )
	171
[2528]	172	! ! Checks:
[1218]	173	IF( .NOT. ln_rnf ) THEN ! no specific treatment in vicinity of river mouths
	174	ln_rnf_mouth = .false.
[2715]	175	IF( sbc_rnf_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_init : unable to allocate sbc_rnf arrays' )
[1218]	176	nkrnf = 0
[3625]	177	rnf (:,:) = 0.0_wp
[4365]	178	rnf_b (:,:) = 0.0_wp
[3625]	179	rnfmsk (:,:) = 0.0_wp
	180	rnfmsk_z(:) = 0.0_wp
[1116]	181	ENDIF
[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' )
[4205]	210	#if defined key_coupled
[4161]	211	IF( ln_iceflx_ave .AND. ln_iceflx_linear ) &
	212	& CALL ctl_stop( ' ln_iceflx_ave and ln_iceflx_linear options are not compatible' )
	213	IF( ( nn_ice ==3 .AND. lk_cpl) .AND. .NOT. ( ln_iceflx_ave .OR. ln_iceflx_linear ) ) &
	214	& CALL ctl_stop( ' With lim3 coupled, either ln_iceflx_ave or ln_iceflx_linear must be set to .TRUE.' )
[4205]	215	#endif
[2528]	216	IF( ln_dm2dc ) nday_qsr = -1 ! initialisation flag
	217
	218	IF( ln_dm2dc .AND. .NOT.( ln_flx .OR. ln_blk_core ) ) &
	219	& CALL ctl_stop( 'diurnal cycle into qsr field from daily values requires a flux or core-bulk formulation' )
	220
	221	IF( ln_dm2dc .AND. ( ( NINT(rday) / ( nn_fsbc * NINT(rdt) ) ) < 8 ) ) &
	222	& CALL ctl_warn( 'diurnal cycle for qsr: the sampling of the diurnal cycle is too small...' )
[3294]	223
[3680]	224	IF ( ln_wave ) THEN
	225	!Activated wave module but neither drag nor stokes drift activated
	226	IF ( .NOT.(ln_cdgw .OR. ln_sdw) ) THEN
	227	CALL ctl_warn( 'Ask for wave coupling but nor drag coefficient (ln_cdgw=F) neither stokes drift activated (ln_sdw=F)' )
	228	!drag coefficient read from wave model definable only with mfs bulk formulae and core
	229	ELSEIF (ln_cdgw .AND. .NOT.(ln_blk_mfs .OR. ln_blk_core) ) THEN
	230	CALL ctl_stop( 'drag coefficient read from wave model definable only with mfs bulk formulae and core')
	231	ENDIF
	232	ELSE
	233	IF ( ln_cdgw .OR. ln_sdw ) &
	234	& CALL ctl_stop('Not Activated Wave Module (ln_wave=F) but &
	235	& asked coupling with drag coefficient (ln_cdgw =T) or Stokes drift (ln_sdw=T) ')
	236	ENDIF
[2528]	237
	238	! ! Choice of the Surface Boudary Condition (set nsbc)
[888]	239	icpt = 0
	240	IF( ln_ana ) THEN ; nsbc = 1 ; icpt = icpt + 1 ; ENDIF ! analytical formulation
	241	IF( ln_flx ) THEN ; nsbc = 2 ; icpt = icpt + 1 ; ENDIF ! flux formulation
	242	IF( ln_blk_clio ) THEN ; nsbc = 3 ; icpt = icpt + 1 ; ENDIF ! CLIO bulk formulation
	243	IF( ln_blk_core ) THEN ; nsbc = 4 ; icpt = icpt + 1 ; ENDIF ! CORE bulk formulation
[3294]	244	IF( ln_blk_mfs ) THEN ; nsbc = 6 ; icpt = icpt + 1 ; ENDIF ! MFS bulk formulation
[888]	245	IF( ln_cpl ) THEN ; nsbc = 5 ; icpt = icpt + 1 ; ENDIF ! Coupled formulation
	246	IF( cp_cfg == 'gyre') THEN ; nsbc = 0 ; ENDIF ! GYRE analytical formulation
	247	IF( lk_esopa ) nsbc = -1 ! esopa test, ALL formulations
[2528]	248	!
[888]	249	IF( icpt /= 1 .AND. .NOT.lk_esopa ) THEN
	250	WRITE(numout,*)
	251	WRITE(numout,*) ' E R R O R in setting the sbc, one and only one namelist/CPP key option '
	252	WRITE(numout,*) ' must be choosen. You choose ', icpt, ' option(s)'
	253	WRITE(numout,*) ' We stop'
	254	nstop = nstop + 1
	255	ENDIF
	256	IF(lwp) THEN
	257	WRITE(numout,*)
	258	IF( nsbc == -1 ) WRITE(numout,*) ' ESOPA test All surface boundary conditions'
	259	IF( nsbc == 0 ) WRITE(numout,*) ' GYRE analytical formulation'
	260	IF( nsbc == 1 ) WRITE(numout,*) ' analytical formulation'
	261	IF( nsbc == 2 ) WRITE(numout,*) ' flux formulation'
	262	IF( nsbc == 3 ) WRITE(numout,*) ' CLIO bulk formulation'
	263	IF( nsbc == 4 ) WRITE(numout,*) ' CORE bulk formulation'
	264	IF( nsbc == 5 ) WRITE(numout,*) ' coupled formulation'
[3294]	265	IF( nsbc == 6 ) WRITE(numout,*) ' MFS Bulk formulation'
[888]	266	ENDIF
	267	!
[4153]	268	CALL sbc_ssm_init ! Sea-surface mean fields initialisation
[4152]	269	!
[3764]	270	IF( ln_ssr ) CALL sbc_ssr_init ! Sea-Surface Restoring initialisation
	271	!
	272	IF( nn_ice == 4 ) CALL cice_sbc_init( nsbc ) ! CICE initialisation
	273	!
[888]	274	END SUBROUTINE sbc_init
	275
	276
	277	SUBROUTINE sbc( kt )
	278	!!---------------------------------------------------------------------
	279	!! * ROUTINE sbc *
	280	!!
	281	!! ** Purpose : provide at each time-step the ocean surface boundary
	282	!! condition (momentum, heat and freshwater fluxes)
	283	!!
	284	!! ** Method : blah blah to be written ?????????
	285	!! CAUTION : never mask the surface stress field (tke sbc)
	286	!!
[2528]	287	!! ** Action : - set the ocean surface boundary condition at before and now
	288	!! time step, i.e.
[3625]	289	!! utau_b, vtau_b, qns_b, qsr_b, emp_n, sfx_b, qrp_b, erp_b
	290	!! utau , vtau , qns , qsr , emp , sfx , qrp , erp
[1037]	291	!! - updte the ice fraction : fr_i
[888]	292	!!----------------------------------------------------------------------
	293	INTEGER, INTENT(in) :: kt ! ocean time step
	294	!!---------------------------------------------------------------------
[3294]	295	!
	296	IF( nn_timing == 1 ) CALL timing_start('sbc')
	297	!
[2528]	298	! ! ---------------------------------------- !
	299	IF( kt /= nit000 ) THEN ! Swap of forcing fields !
	300	! ! ---------------------------------------- !
	301	utau_b(:,:) = utau(:,:) ! Swap the ocean forcing fields
	302	vtau_b(:,:) = vtau(:,:) ! (except at nit000 where before fields
	303	qns_b (:,:) = qns (:,:) ! are set at the end of the routine)
	304	! The 3D heat content due to qsr forcing is treated in traqsr
	305	! qsr_b (:,:) = qsr (:,:)
[3625]	306	emp_b(:,:) = emp(:,:)
	307	sfx_b(:,:) = sfx(:,:)
[2528]	308	ENDIF
	309	! ! ---------------------------------------- !
	310	! ! forcing field computation !
	311	! ! ---------------------------------------- !
[1482]	312	!
[2528]	313	IF( ln_apr_dyn ) CALL sbc_apr( kt ) ! atmospheric pressure provided at kt+0.5*nn_fsbc
	314	! (caution called before sbc_ssm)
	315	!
	316	CALL sbc_ssm( kt ) ! ocean sea surface variables (sst_m, sss_m, ssu_m, ssv_m)
	317	! ! averaged over nf_sbc time-step
[888]	318
[3680]	319	IF (ln_wave) CALL sbc_wave( kt )
[2528]	320	!== sbc formulation ==!
	321
	322	SELECT CASE( nsbc ) ! Compute ocean surface boundary condition
[3625]	323	! ! (i.e. utau,vtau, qns, qsr, emp, sfx)
[1218]	324	CASE( 0 ) ; CALL sbc_gyre ( kt ) ! analytical formulation : GYRE configuration
	325	CASE( 1 ) ; CALL sbc_ana ( kt ) ! analytical formulation : uniform sbc
	326	CASE( 2 ) ; CALL sbc_flx ( kt ) ! flux formulation
	327	CASE( 3 ) ; CALL sbc_blk_clio( kt ) ! bulk formulation : CLIO for the ocean
	328	CASE( 4 ) ; CALL sbc_blk_core( kt ) ! bulk formulation : CORE for the ocean
	329	CASE( 5 ) ; CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! coupled formulation
[3294]	330	CASE( 6 ) ; CALL sbc_blk_mfs ( kt ) ! bulk formulation : MFS for the ocean
[888]	331	CASE( -1 )
[1226]	332	CALL sbc_ana ( kt ) ! ESOPA, test ALL the formulations
	333	CALL sbc_gyre ( kt ) !
	334	CALL sbc_flx ( kt ) !
	335	CALL sbc_blk_clio( kt ) !
	336	CALL sbc_blk_core( kt ) !
	337	CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) !
[888]	338	END SELECT
	339
[2528]	340	! !== Misc. Options ==!
[888]	341
[3632]	342	SELECT CASE( nn_ice ) ! Update heat and freshwater fluxes over sea-ice areas
	343	CASE( 1 ) ; CALL sbc_ice_if ( kt ) ! Ice-cover climatology ("Ice-if" model)
	344	CASE( 2 ) ; CALL sbc_ice_lim_2( kt, nsbc ) ! LIM-2 ice model
	345	CASE( 3 ) ; CALL sbc_ice_lim ( kt, nsbc ) ! LIM-3 ice model
[4161]	346	!is it useful?
[4205]	347	CASE( 4 ) ; CALL sbc_ice_cice ( kt, nsbc ) ! CICE ice model
[1037]	348	END SELECT
[888]	349
[3632]	350	IF( ln_icebergs ) CALL icb_stp( kt ) ! compute icebergs
[3609]	351
[3632]	352	IF( ln_rnf ) CALL sbc_rnf( kt ) ! add runoffs to fresh water fluxes
[1061]	353
[3632]	354	IF( ln_ssr ) CALL sbc_ssr( kt ) ! add SST/SSS damping term
[888]	355
[3632]	356	IF( nn_fwb /= 0 ) CALL sbc_fwb( kt, nn_fwb, nn_fsbc ) ! control the freshwater budget
[888]	357
[3632]	358	IF( nn_closea == 1 ) CALL sbc_clo( kt ) ! treatment of closed sea in the model domain
	359	! ! (update freshwater fluxes)
[2502]	360	!RBbug do not understand why see ticket 667
[4333]	361	!clem-bugsal CALL lbc_lnk( emp, 'T', 1. )
[2502]	362	!
[2528]	363	IF( kt == nit000 ) THEN ! set the forcing field at nit000 - 1 !
	364	! ! ---------------------------------------- !
	365	IF( ln_rstart .AND. & !* Restart: read in restart file
	366	& iom_varid( numror, 'utau_b', ldstop = .FALSE. ) > 0 ) THEN
	367	IF(lwp) WRITE(numout,*) ' nit000-1 surface forcing fields red in the restart file'
	368	CALL iom_get( numror, jpdom_autoglo, 'utau_b', utau_b ) ! before i-stress (U-point)
	369	CALL iom_get( numror, jpdom_autoglo, 'vtau_b', vtau_b ) ! before j-stress (V-point)
	370	CALL iom_get( numror, jpdom_autoglo, 'qns_b' , qns_b ) ! before non solar heat flux (T-point)
	371	! The 3D heat content due to qsr forcing is treated in traqsr
[3625]	372	! CALL iom_get( numror, jpdom_autoglo, 'qsr_b' , qsr_b ) ! before solar heat flux (T-point)
	373	CALL iom_get( numror, jpdom_autoglo, 'emp_b', emp_b ) ! before freshwater flux (T-point)
	374	! To ensure restart capability with 3.3x/3.4 restart files !! to be removed in v3.6
	375	IF( iom_varid( numror, 'sfx_b', ldstop = .FALSE. ) > 0 ) THEN
	376	CALL iom_get( numror, jpdom_autoglo, 'sfx_b', sfx_b ) ! before salt flux (T-point)
	377	ELSE
	378	sfx_b (:,:) = sfx(:,:)
	379	ENDIF
[2528]	380	ELSE !* no restart: set from nit000 values
	381	IF(lwp) WRITE(numout,*) ' nit000-1 surface forcing fields set to nit000'
	382	utau_b(:,:) = utau(:,:)
	383	vtau_b(:,:) = vtau(:,:)
	384	qns_b (:,:) = qns (:,:)
[3625]	385	emp_b (:,:) = emp(:,:)
	386	sfx_b (:,:) = sfx(:,:)
[2528]	387	ENDIF
	388	ENDIF
	389	! ! ---------------------------------------- !
	390	IF( lrst_oce ) THEN ! Write in the ocean restart file !
	391	! ! ---------------------------------------- !
	392	IF(lwp) WRITE(numout,*)
	393	IF(lwp) WRITE(numout,*) 'sbc : ocean surface forcing fields written in ocean restart file ', &
	394	& 'at it= ', kt,' date= ', ndastp
	395	IF(lwp) WRITE(numout,*) '~~~~'
	396	CALL iom_rstput( kt, nitrst, numrow, 'utau_b' , utau )
	397	CALL iom_rstput( kt, nitrst, numrow, 'vtau_b' , vtau )
	398	CALL iom_rstput( kt, nitrst, numrow, 'qns_b' , qns )
	399	! The 3D heat content due to qsr forcing is treated in traqsr
	400	! CALL iom_rstput( kt, nitrst, numrow, 'qsr_b' , qsr )
	401	CALL iom_rstput( kt, nitrst, numrow, 'emp_b' , emp )
[3625]	402	CALL iom_rstput( kt, nitrst, numrow, 'sfx_b' , sfx )
[2528]	403	ENDIF
	404
	405	! ! ---------------------------------------- !
	406	! ! Outputs and control print !
	407	! ! ---------------------------------------- !
[1482]	408	IF( MOD( kt-1, nn_fsbc ) == 0 ) THEN
[2561]	409	CALL iom_put( "empmr" , emp - rnf ) ! upward water flux
[3625]	410	CALL iom_put( "saltflx", sfx ) ! downward salt flux
	411	! (includes virtual salt flux beneath ice
	412	! in linear free surface case)
[4148]	413	CALL iom_put( "fmmflx", fmmflx ) ! Freezing-melting water flux
[2561]	414	CALL iom_put( "qt" , qns + qsr ) ! total heat flux
	415	CALL iom_put( "qns" , qns ) ! solar heat flux
	416	CALL iom_put( "qsr" , qsr ) ! solar heat flux
[2528]	417	IF( nn_ice > 0 ) CALL iom_put( "ice_cover", fr_i ) ! ice fraction
[1482]	418	ENDIF
	419	!
	420	CALL iom_put( "utau", utau ) ! i-wind stress (stress can be updated at
	421	CALL iom_put( "vtau", vtau ) ! j-wind stress each time step in sea-ice)
[1705]	422	CALL iom_put( "taum", taum ) ! wind stress module
	423	CALL iom_put( "wspd", wndm ) ! wind speed module
[1482]	424	!
[888]	425	IF(ln_ctl) THEN ! print mean trends (used for debugging)
[3294]	426	CALL prt_ctl(tab2d_1=fr_i , clinfo1=' fr_i - : ', mask1=tmask, ovlap=1 )
	427	CALL prt_ctl(tab2d_1=(emp-rnf) , clinfo1=' emp-rnf - : ', mask1=tmask, ovlap=1 )
[3625]	428	CALL prt_ctl(tab2d_1=(sfx-rnf) , clinfo1=' sfx-rnf - : ', mask1=tmask, ovlap=1 )
[3294]	429	CALL prt_ctl(tab2d_1=qns , clinfo1=' qns - : ', mask1=tmask, ovlap=1 )
	430	CALL prt_ctl(tab2d_1=qsr , clinfo1=' qsr - : ', mask1=tmask, ovlap=1 )
	431	CALL prt_ctl(tab3d_1=tmask , clinfo1=' tmask - : ', mask1=tmask, ovlap=1, kdim=jpk )
	432	CALL prt_ctl(tab3d_1=tsn(:,:,:,jp_tem), clinfo1=' sst - : ', mask1=tmask, ovlap=1, kdim=1 )
	433	CALL prt_ctl(tab3d_1=tsn(:,:,:,jp_sal), clinfo1=' sss - : ', mask1=tmask, ovlap=1, kdim=1 )
	434	CALL prt_ctl(tab2d_1=utau , clinfo1=' utau - : ', mask1=umask, &
	435	& tab2d_2=vtau , clinfo2=' vtau - : ', mask2=vmask, ovlap=1 )
[888]	436	ENDIF
[3294]	437
	438	IF( kt == nitend ) CALL sbc_final ! Close down surface module if necessary
[888]	439	!
[3294]	440	IF( nn_timing == 1 ) CALL timing_stop('sbc')
	441	!
[888]	442	END SUBROUTINE sbc
	443
[3764]	444
[3294]	445	SUBROUTINE sbc_final
	446	!!---------------------------------------------------------------------
	447	!! * ROUTINE sbc_final *
[3764]	448	!!
	449	!! ** Purpose : Finalize CICE (if used)
[3294]	450	!!---------------------------------------------------------------------
[3764]	451	!
[3294]	452	IF( nn_ice == 4 ) CALL cice_sbc_final
	453	!
	454	END SUBROUTINE sbc_final
	455
[888]	456	!!======================================================================
	457	END MODULE sbcmod

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