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traatfQCO.F90 in NEMO/branches/2020/dev_r12377_KERNEL-06_techene_e3/src/OCE/TRA – NEMO

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source: NEMO/branches/2020/dev_r12377_KERNEL-06_techene_e3/src/OCE/TRA/traatfQCO.F90 @ 12624

Last change on this file since 12624 was 12624, checked in by techene, 4 years ago
all: add e3 substitute and limit precompiled files lines to about 130 character, change key_LF into key_QCO, change module name (dynatfQCO, traatfQCO, stepLF)
Property svn:keywords set to `Id`
File size: 20.2 KB

Rev	Line
[12624]	1	MODULE traatfqco
[3]	2	!!======================================================================
[12624]	3	!! * MODULE traatfqco *
[11475]	4	!! Ocean active tracers: Asselin time filtering for temperature and salinity
[3]	5	!!======================================================================
[1110]	6	!! History : OPA ! 1991-11 (G. Madec) Original code
	7	!! 7.0 ! 1993-03 (M. Guyon) symetrical conditions
	8	!! 8.0 ! 1996-02 (G. Madec & M. Imbard) opa release 8.0
	9	!! - ! 1996-04 (A. Weaver) Euler forward step
	10	!! 8.2 ! 1999-02 (G. Madec, N. Grima) semi-implicit pressure grad.
	11	!! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and module
	12	!! - ! 2002-11 (C. Talandier, A-M Treguier) Open boundaries
	13	!! - ! 2005-04 (C. Deltel) Add Asselin trend in the ML budget
	14	!! 2.0 ! 2006-02 (L. Debreu, C. Mazauric) Agrif implementation
	15	!! 3.0 ! 2008-06 (G. Madec) time stepping always done in trazdf
[1438]	16	!! 3.1 ! 2009-02 (G. Madec, R. Benshila) re-introduce the vvl option
[2528]	17	!! 3.3 ! 2010-04 (M. Leclair, G. Madec) semi-implicit hpg with asselin filter + modified LF-RA
	18	!! - ! 2010-05 (C. Ethe, G. Madec) merge TRC-TRA
[12581]	19	!! 4.1 ! 2019-08 (A. Coward, D. Storkey) rename tranxt.F90 -> traatfLF.F90. Now only does time filtering.
[3]	20	!!----------------------------------------------------------------------
[503]	21
	22	!!----------------------------------------------------------------------
[11475]	23	!! tra_atf : time filtering on tracers
	24	!! tra_atf_fix : time filtering on tracers : fixed volume case
	25	!! tra_atf_vvl : time filtering on tracers : variable volume case
[3]	26	!!----------------------------------------------------------------------
	27	USE oce ! ocean dynamics and tracers variables
[12581]	28	USE dom_oce ! ocean space and time domain variables
[2528]	29	USE sbc_oce ! surface boundary condition: ocean
[5467]	30	USE sbcrnf ! river runoffs
[12150]	31	USE isf_oce ! ice shelf melting
[4990]	32	USE zdf_oce ! ocean vertical mixing
[1438]	33	USE domvvl ! variable volume
[4990]	34	USE trd_oce ! trends: ocean variables
[12581]	35	USE trdtra ! trends manager: tracers
[4990]	36	USE traqsr ! penetrative solar radiation (needed for nksr)
	37	USE phycst ! physical constant
[9019]	38	USE ldftra ! lateral physics : tracers
	39	USE ldfslp ! lateral physics : slopes
	40	USE bdy_oce , ONLY : ln_bdy
[3294]	41	USE bdytra ! open boundary condition (bdy_tra routine)
[4990]	42	!
[3]	43	USE in_out_manager ! I/O manager
	44	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
[258]	45	USE prtctl ! Print control
[4990]	46	USE timing ! Timing
[2528]	47	#if defined key_agrif
[9570]	48	USE agrif_oce_interp
[2528]	49	#endif
[3]	50
	51	IMPLICIT NONE
	52	PRIVATE
	53
[12624]	54	PUBLIC tra_atf_qco ! routine called by step.F90
[12581]	55	PUBLIC tra_atf_fix_lf ! to be used in trcnxt !!st WARNING discrepancy here interpol is used
[12624]	56	PUBLIC tra_atf_qco_lf ! to be used in trcnxt !!st WARNING discrepancy here interpol is used
[592]	57
	58	!! * Substitutions
[12340]	59	# include "do_loop_substitute.h90"
[12624]	60	# include "domzgr_substitute.h90"
[3]	61	!!----------------------------------------------------------------------
[10068]	62	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
[2715]	63	!! $Id$
[10068]	64	!! Software governed by the CeCILL license (see ./LICENSE)
[3]	65	!!----------------------------------------------------------------------
	66	CONTAINS
	67
[12624]	68	SUBROUTINE tra_atf_qco( kt, Kbb, Kmm, Kaa, pts )
[3]	69	!!----------------------------------------------------------------------
[12581]	70	!! * ROUTINE traatfLF *
[3]	71	!!
[12581]	72	!! ** Purpose : Apply the boundary condition on the after temperature
[11475]	73	!! and salinity fields and add the Asselin time filter on now fields.
[12581]	74	!!
	75	!! ** Method : At this stage of the computation, ta and sa are the
[1110]	76	!! after temperature and salinity as the time stepping has
	77	!! been performed in trazdf_imp or trazdf_exp module.
[3]	78	!!
[12581]	79	!! - Apply lateral boundary conditions on (ta,sa)
	80	!! at the local domain boundaries through lbc_lnk call,
	81	!! at the one-way open boundaries (ln_bdy=T),
[4990]	82	!! at the AGRIF zoom boundaries (lk_agrif=T)
[1110]	83	!!
[1438]	84	!! - Update lateral boundary conditions on AGRIF children
	85	!! domains (lk_agrif=T)
[1110]	86	!!
[11475]	87	!! ** Action : - ts(Kmm) time filtered
[503]	88	!!----------------------------------------------------------------------
[11057]	89	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	90	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
[12581]	91	REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers
[503]	92	!!
[6140]	93	INTEGER :: ji, jj, jk, jn ! dummy loop indices
	94	REAL(wp) :: zfact ! local scalars
[9019]	95	REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdt, ztrds
[3]	96	!!----------------------------------------------------------------------
[3294]	97	!
[12624]	98	IF( ln_timing ) CALL timing_start( 'tra_atf_qco')
[3294]	99	!
[1110]	100	IF( kt == nit000 ) THEN
	101	IF(lwp) WRITE(numout,*)
[12624]	102	IF(lwp) WRITE(numout,*) 'tra_atf_qco : apply Asselin time filter to "now" fields'
[1110]	103	IF(lwp) WRITE(numout,*) '~~~~~~~'
[592]	104	ENDIF
	105
[12583]	106	! ! Update after tracer on domain lateral boundaries
	107	! !
	108	! #if defined key_agrif
	109	! CALL Agrif_tra ! AGRIF zoom boundaries
	110	! #endif
	111	! ! ! local domain boundaries (T-point, unchanged sign)
	112	! CALL lbc_lnk_multi( 'traatfLF', pts(:,:,:,jp_tem,Kaa), 'T', 1., pts(:,:,:,jp_sal,Kaa), 'T', 1. )
	113	! !
	114	! IF( ln_bdy ) CALL bdy_tra( kt, Kbb, pts, Kaa ) ! BDY open boundaries
[12581]	115
[1438]	116	! set time step size (Euler/Leapfrog)
[9019]	117	IF( neuler == 0 .AND. kt == nit000 ) THEN ; r2dt = rdt ! at nit000 (Euler)
[6140]	118	ELSEIF( kt <= nit000 + 1 ) THEN ; r2dt = 2._wp* rdt ! at nit000 or nit000+1 (Leapfrog)
[1438]	119	ENDIF
[3]	120
[1110]	121	! trends computation initialisation
[12581]	122	IF( l_trdtra ) THEN
[9019]	123	ALLOCATE( ztrdt(jpi,jpj,jpk) , ztrds(jpi,jpj,jpk) )
[8698]	124	ztrdt(:,:,jpk) = 0._wp
	125	ztrds(:,:,jpk) = 0._wp
[12581]	126	IF( ln_traldf_iso ) THEN ! diagnose the "pure" Kz diffusive trend
[11057]	127	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_zdfp, ztrdt )
	128	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_zdfp, ztrds )
[4990]	129	ENDIF
[12581]	130	! total trend for the non-time-filtered variables.
[8698]	131	zfact = 1.0 / rdt
[11057]	132	! G Nurser 23 Mar 2017. Recalculate trend as Delta(e3t*T)/e3tn; e3tn cancel from pts(Kmm) terms
[7646]	133	DO jk = 1, jpkm1
[12624]	134	! ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kaa)e3t(:,:,jk,Kaa) / e3t(:,:,jk,Kmm) - pts(:,:,jk,jp_tem,Kmm)) zfact
	135	! ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kaa)e3t(:,:,jk,Kaa) / e3t(:,:,jk,Kmm) - pts(:,:,jk,jp_sal,Kmm)) zfact
	136	ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kaa) * (1._wp + r3t(:,:,Kaa) * tmask(:,:,jk))/(1._wp + r3t(:,:,Kmm) * tmask(:,:,jk)) &
	137	& - pts(:,:,jk,jp_tem,Kmm) ) * zfact
	138	ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kaa) * (1._wp + r3t(:,:,Kaa) * tmask(:,:,jk))/(1._wp + r3t(:,:,Kmm) * tmask(:,:,jk)) &
	139	& - pts(:,:,jk,jp_sal,Kmm) ) * zfact
[7646]	140	END DO
[11057]	141	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_tot, ztrdt )
	142	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_tot, ztrds )
[9019]	143	IF( ln_linssh ) THEN ! linear sea surface height only
[12581]	144	! Store now fields before applying the Asselin filter
[8698]	145	! in order to calculate Asselin filter trend later.
[12581]	146	ztrdt(:,:,:) = pts(:,:,:,jp_tem,Kmm)
[11057]	147	ztrds(:,:,:) = pts(:,:,:,jp_sal,Kmm)
[8698]	148	ENDIF
[1110]	149	ENDIF
	150
[12581]	151	IF( neuler == 0 .AND. kt == nit000 ) THEN ! Euler time-stepping
[11099]	152	!
[9019]	153	IF (l_trdtra .AND. .NOT. ln_linssh ) THEN ! Zero Asselin filter contribution must be explicitly written out since for vvl
[11057]	154	! ! Asselin filter is output by tra_atf_vvl that is not called on this time step
[8698]	155	ztrdt(:,:,:) = 0._wp
	156	ztrds(:,:,:) = 0._wp
[11057]	157	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_atf, ztrdt )
	158	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_atf, ztrds )
[8698]	159	END IF
[6140]	160	!
[2528]	161	ELSE ! Leap-Frog + Asselin filter time stepping
	162	!
[12624]	163	IF ( ln_linssh ) THEN ; CALL tra_atf_fix_lf( kt, Kbb, Kmm, Kaa, nit000, 'TRA', pts, jpts ) ! linear free surface
	164	ELSE ; CALL tra_atf_qco_lf( kt, Kbb, Kmm, Kaa, nit000, rdt, 'TRA', pts, sbc_tsc, sbc_tsc_b, jpts ) ! non-linear free surface
[2528]	165	ENDIF
[6140]	166	!
[12624]	167	CALL lbc_lnk_multi( 'traatfqco', pts(:,:,:,jp_tem,Kbb) , 'T', 1., pts(:,:,:,jp_sal,Kbb) , 'T', 1., &
[11057]	168	& pts(:,:,:,jp_tem,Kmm) , 'T', 1., pts(:,:,:,jp_sal,Kmm) , 'T', 1., &
	169	& pts(:,:,:,jp_tem,Kaa), 'T', 1., pts(:,:,:,jp_sal,Kaa), 'T', 1. )
[9094]	170	!
[12581]	171	ENDIF
[2715]	172	!
[12581]	173	IF( l_trdtra .AND. ln_linssh ) THEN ! trend of the Asselin filter (tb filtered - tb)/dt
	174	zfact = 1._wp / r2dt
[1110]	175	DO jk = 1, jpkm1
[11099]	176	ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kmm) - ztrdt(:,:,jk) ) * zfact
	177	ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kmm) - ztrds(:,:,jk) ) * zfact
[1110]	178	END DO
[11057]	179	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_atf, ztrdt )
	180	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_atf, ztrds )
[1438]	181	END IF
[9019]	182	IF( l_trdtra ) DEALLOCATE( ztrdt , ztrds )
[2715]	183	!
[1438]	184	! ! control print
[12236]	185	IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=pts(:,:,:,jp_tem,Kmm), clinfo1=' nxt - Tn: ', mask1=tmask, &
	186	& tab3d_2=pts(:,:,:,jp_sal,Kmm), clinfo2= ' Sn: ', mask2=tmask )
[1438]	187	!
[12624]	188	IF( ln_timing ) CALL timing_stop('tra_atf_qco')
[3294]	189	!
[12624]	190	END SUBROUTINE tra_atf_qco
[1438]	191
	192
[12581]	193	SUBROUTINE tra_atf_fix_lf( kt, Kbb, Kmm, Kaa, kit000, cdtype, pt, kjpt )
[1438]	194	!!----------------------------------------------------------------------
[11057]	195	!! * ROUTINE tra_atf_fix *
[1438]	196	!!
[11475]	197	!! ** Purpose : fixed volume: apply the Asselin time filter to the "now" field
[12581]	198	!!
[1438]	199	!! ** Method : - Apply a Asselin time filter on now fields.
	200	!!
[11475]	201	!! ** Action : - pt(Kmm) ready for the next time step
[1438]	202	!!----------------------------------------------------------------------
[11057]	203	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	204	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
	205	INTEGER , INTENT(in ) :: kit000 ! first time step index
	206	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
	207	INTEGER , INTENT(in ) :: kjpt ! number of tracers
	208	REAL(wp), DIMENSION(jpi,jpj,jpk,kjpt,jpt), INTENT(inout) :: pt ! tracer fields
[2715]	209	!
[2528]	210	INTEGER :: ji, jj, jk, jn ! dummy loop indices
	211	REAL(wp) :: ztn, ztd ! local scalars
[1438]	212	!!----------------------------------------------------------------------
[6140]	213	!
[3294]	214	IF( kt == kit000 ) THEN
[1438]	215	IF(lwp) WRITE(numout,*)
[12581]	216	IF(lwp) WRITE(numout,*) 'tra_atf_fix_lf : time filtering', cdtype
[1438]	217	IF(lwp) WRITE(numout,*) '~~~~~~~~~~~'
	218	ENDIF
	219	!
[2528]	220	DO jn = 1, kjpt
[1438]	221	!
[12340]	222	DO_3D_00_00( 1, jpkm1 )
[12581]	223	ztn = pt(ji,jj,jk,jn,Kmm)
[12340]	224	ztd = pt(ji,jj,jk,jn,Kaa) - 2._wp * ztn + pt(ji,jj,jk,jn,Kbb) ! time laplacian on tracers
	225	!
	226	pt(ji,jj,jk,jn,Kmm) = ztn + atfp * ztd ! pt <-- filtered pt
	227	END_3D
[1110]	228	!
[2528]	229	END DO
[1438]	230	!
[12581]	231	END SUBROUTINE tra_atf_fix_lf
[3]	232
[1110]	233
[12624]	234	SUBROUTINE tra_atf_qco_lf( kt, Kbb, Kmm, Kaa, kit000, p2dt, cdtype, pt, psbc_tc, psbc_tc_b, kjpt )
[1438]	235	!!----------------------------------------------------------------------
[11057]	236	!! * ROUTINE tra_atf_vvl *
[1438]	237	!!
[12581]	238	!! ** Purpose : Time varying volume: apply the Asselin time filter
	239	!!
[1438]	240	!! ** Method : - Apply a thickness weighted Asselin time filter on now fields.
[12624]	241	!! pt(Kmm) = ( e3t_mpt(Kmm) + atfp[ e3t_bpt(Kbb) - 2 e3t_mpt(Kmm) + e3t_a*pt(Kaa) ] )
	242	!! /( e3t_m + atfp*[ e3t_b - 2 e3t_m + e3t_a ] )
[1438]	243	!!
[11475]	244	!! ** Action : - pt(Kmm) ready for the next time step
[1438]	245	!!----------------------------------------------------------------------
[11057]	246	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	247	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
	248	INTEGER , INTENT(in ) :: kit000 ! first time step index
	249	REAL(wp) , INTENT(in ) :: p2dt ! time-step
	250	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
	251	INTEGER , INTENT(in ) :: kjpt ! number of tracers
	252	REAL(wp), DIMENSION(jpi,jpj,jpk,kjpt,jpt), INTENT(inout) :: pt ! tracer fields
	253	REAL(wp), DIMENSION(jpi,jpj ,kjpt) , INTENT(in ) :: psbc_tc ! surface tracer content
	254	REAL(wp), DIMENSION(jpi,jpj ,kjpt) , INTENT(in ) :: psbc_tc_b ! before surface tracer content
[6140]	255	!
[5930]	256	LOGICAL :: ll_traqsr, ll_rnf, ll_isf ! local logical
[2528]	257	INTEGER :: ji, jj, jk, jn ! dummy loop indices
[8698]	258	REAL(wp) :: zfact, zfact1, ztc_a , ztc_n , ztc_b , ztc_f , ztc_d ! local scalar
[12581]	259	REAL(wp) :: zfact2, ze3t_b, ze3t_n, ze3t_a, ze3t_f, ze3t_d ! - -
[9019]	260	REAL(wp), ALLOCATABLE, DIMENSION(:,:,:,:) :: ztrd_atf
[1438]	261	!!----------------------------------------------------------------------
[3294]	262	!
	263	IF( kt == kit000 ) THEN
[1438]	264	IF(lwp) WRITE(numout,*)
[12624]	265	IF(lwp) WRITE(numout,*) 'tra_atf_qco : time filtering', cdtype
[1438]	266	IF(lwp) WRITE(numout,*) '~~~~~~~~~~~'
	267	ENDIF
[2528]	268	!
[12581]	269	IF( cdtype == 'TRA' ) THEN
[2528]	270	ll_traqsr = ln_traqsr ! active tracers case and solar penetration
[5467]	271	ll_rnf = ln_rnf ! active tracers case and river runoffs
[6140]	272	ll_isf = ln_isf ! active tracers case and ice shelf melting
	273	ELSE ! passive tracers case
	274	ll_traqsr = .FALSE. ! NO solar penetration
[12581]	275	ll_rnf = .FALSE. ! NO river runoffs ???? !!gm BUG ?
	276	ll_isf = .FALSE. ! NO ice shelf melting/freezing !!gm BUG ??
[2528]	277	ENDIF
	278	!
[9019]	279	IF( ( l_trdtra .AND. cdtype == 'TRA' ) .OR. ( l_trdtrc .AND. cdtype == 'TRC' ) ) THEN
	280	ALLOCATE( ztrd_atf(jpi,jpj,jpk,kjpt) )
[8698]	281	ztrd_atf(:,:,:,:) = 0.0_wp
	282	ENDIF
[10095]	283	zfact = 1._wp / p2dt
[9019]	284	zfact1 = atfp * p2dt
	285	zfact2 = zfact1 * r1_rau0
[12581]	286	DO jn = 1, kjpt
[12340]	287	DO_3D_00_00( 1, jpkm1 )
	288	ze3t_b = e3t(ji,jj,jk,Kbb)
	289	ze3t_n = e3t(ji,jj,jk,Kmm)
	290	ze3t_a = e3t(ji,jj,jk,Kaa)
	291	! ! tracer content at Before, now and after
	292	ztc_b = pt(ji,jj,jk,jn,Kbb) * ze3t_b
	293	ztc_n = pt(ji,jj,jk,jn,Kmm) * ze3t_n
	294	ztc_a = pt(ji,jj,jk,jn,Kaa) * ze3t_a
	295	!
	296	ze3t_d = ze3t_a - 2. * ze3t_n + ze3t_b
	297	ztc_d = ztc_a - 2. * ztc_n + ztc_b
	298	!
	299	ztc_f = ztc_n + atfp * ztc_d
	300	!
[12581]	301	! Asselin correction on scale factors is done via ssh in r3t_f
	302	ze3t_f = e3t_0(ji,jj,jk) * ( 1._wp + r3t_f(ji,jj) * tmask(ji,jj,jk) )
	303
[12372]	304	!
[12581]	305	IF( jk == mikt(ji,jj) ) THEN ! first level
[12340]	306	ztc_f = ztc_f - zfact1 * ( psbc_tc(ji,jj,jn) - psbc_tc_b(ji,jj,jn) )
	307	ENDIF
	308	!
	309	! solar penetration (temperature only)
[12581]	310	IF( ll_traqsr .AND. jn == jp_tem .AND. jk <= nksr ) &
	311	& ztc_f = ztc_f - zfact1 * ( qsr_hc(ji,jj,jk) - qsr_hc_b(ji,jj,jk) )
[12340]	312	!
	313	!
	314	IF( ll_rnf .AND. jk <= nk_rnf(ji,jj) ) &
[12581]	315	& ztc_f = ztc_f - zfact1 * ( rnf_tsc(ji,jj,jn) - rnf_tsc_b(ji,jj,jn) ) &
[12340]	316	& * e3t(ji,jj,jk,Kmm) / h_rnf(ji,jj)
[12156]	317
[12340]	318	!
	319	! ice shelf
	320	IF( ll_isf ) THEN
	321	!
	322	! melt in the cavity
	323	IF ( ln_isfcav_mlt ) THEN
	324	! level fully include in the Losch_2008 ice shelf boundary layer
	325	IF ( jk >= misfkt_cav(ji,jj) .AND. jk < misfkb_cav(ji,jj) ) THEN
	326	ztc_f = ztc_f - zfact1 * ( risf_cav_tsc(ji,jj,jn) - risf_cav_tsc_b(ji,jj,jn) ) &
	327	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_cav(ji,jj)
	328	END IF
[12581]	329	! level partially include in Losch_2008 ice shelf boundary layer
[12340]	330	IF ( jk == misfkb_cav(ji,jj) ) THEN
	331	ztc_f = ztc_f - zfact1 * ( risf_cav_tsc(ji,jj,jn) - risf_cav_tsc_b(ji,jj,jn) ) &
[12624]	332	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_cav(ji,jj) &
	333	& * rfrac_tbl_cav(ji,jj)
[12340]	334	END IF
	335	END IF
	336	!
	337	! parametrised melt (cavity closed)
	338	IF ( ln_isfpar_mlt ) THEN
	339	! level fully include in the Losch_2008 ice shelf boundary layer
	340	IF ( jk >= misfkt_par(ji,jj) .AND. jk < misfkb_par(ji,jj) ) THEN
	341	ztc_f = ztc_f - zfact1 * ( risf_par_tsc(ji,jj,jn) - risf_par_tsc_b(ji,jj,jn) ) &
	342	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_par(ji,jj)
	343	END IF
[12581]	344	! level partially include in Losch_2008 ice shelf boundary layer
[12340]	345	IF ( jk == misfkb_par(ji,jj) ) THEN
	346	ztc_f = ztc_f - zfact1 * ( risf_par_tsc(ji,jj,jn) - risf_par_tsc_b(ji,jj,jn) ) &
[12624]	347	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_par(ji,jj) &
	348	& * rfrac_tbl_par(ji,jj)
[12340]	349	END IF
	350	END IF
	351	!
	352	! ice sheet coupling correction
	353	IF ( ln_isfcpl ) THEN
[12156]	354	!
[12340]	355	! at kt = nit000, risfcpl_vol_n = 0 and risfcpl_vol_b = risfcpl_vol so contribution nul
	356	IF ( ln_rstart .AND. kt == nit000+1 ) THEN
	357	ztc_f = ztc_f + zfact1 * risfcpl_tsc(ji,jj,jk,jn) * r1_e1e2t(ji,jj)
[12372]	358	! Shouldn't volume increment be spread according thanks to zscale ?
[5643]	359	END IF
[6140]	360	!
[12340]	361	END IF
	362	!
	363	END IF
	364	!
	365	ze3t_f = 1.e0 / ze3t_f
	366	pt(ji,jj,jk,jn,Kmm) = ztc_f * ze3t_f ! time filtered "now" field
	367	!
	368	IF( ( l_trdtra .and. cdtype == 'TRA' ) .OR. ( l_trdtrc .and. cdtype == 'TRC' ) ) THEN
	369	ztrd_atf(ji,jj,jk,jn) = (ztc_f - ztc_n) * zfact/ze3t_n
	370	ENDIF
	371	!
	372	END_3D
[12581]	373	!
[2528]	374	END DO
[503]	375	!
[9019]	376	IF( ( l_trdtra .AND. cdtype == 'TRA' ) .OR. ( l_trdtrc .AND. cdtype == 'TRC' ) ) THEN
[12581]	377	IF( l_trdtra .AND. cdtype == 'TRA' ) THEN
[11057]	378	CALL trd_tra( kt, Kmm, Kaa, cdtype, jp_tem, jptra_atf, ztrd_atf(:,:,:,jp_tem) )
	379	CALL trd_tra( kt, Kmm, Kaa, cdtype, jp_sal, jptra_atf, ztrd_atf(:,:,:,jp_sal) )
[9019]	380	ENDIF
	381	IF( l_trdtrc .AND. cdtype == 'TRC' ) THEN
	382	DO jn = 1, kjpt
[11057]	383	CALL trd_tra( kt, Kmm, Kaa, cdtype, jn, jptra_atf, ztrd_atf(:,:,:,jn) )
[9019]	384	END DO
	385	ENDIF
	386	DEALLOCATE( ztrd_atf )
[8698]	387	ENDIF
	388	!
[12624]	389	END SUBROUTINE tra_atf_qco_lf
[3]	390
	391	!!======================================================================
[12624]	392	END MODULE traatfqco

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