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traatf_qco.F90 in NEMO/trunk/src/OCE/TRA – NEMO

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source: NEMO/trunk/src/OCE/TRA/traatf_qco.F90 @ 13817

Last change on this file since 13817 was 13295, checked in by acc, 4 years ago
Replace do-loop macros in the trunk with alternative forms with greater flexibility for extra halo applications. This alters a lot of routines but does not change any behaviour or results. do_loop_substitute.h90 is greatly simplified by this change. SETTE results are identical to those with the previous revision
Property svn:keywords set to `Id`
File size: 19.3 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
[12732]	55	PUBLIC tra_atf_fix_lf ! to be used in trcnxt !!st WARNING discrepancy here interpol is used by PISCES
	56	PUBLIC tra_atf_qco_lf ! to be used in trcnxt !!st WARNING discrepancy here interpol is used by PISCES
[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
[12732]	105	!!st Update after tracer on domain lateral boundaries as been removed outside
[592]	106
[1110]	107	! trends computation initialisation
[12581]	108	IF( l_trdtra ) THEN
[9019]	109	ALLOCATE( ztrdt(jpi,jpj,jpk) , ztrds(jpi,jpj,jpk) )
[8698]	110	ztrdt(:,:,jpk) = 0._wp
	111	ztrds(:,:,jpk) = 0._wp
[12581]	112	IF( ln_traldf_iso ) THEN ! diagnose the "pure" Kz diffusive trend
[11057]	113	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_zdfp, ztrdt )
	114	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_zdfp, ztrds )
[4990]	115	ENDIF
[12581]	116	! total trend for the non-time-filtered variables.
[12724]	117	zfact = 1.0 / rn_Dt
[11057]	118	! G Nurser 23 Mar 2017. Recalculate trend as Delta(e3t*T)/e3tn; e3tn cancel from pts(Kmm) terms
[7646]	119	DO jk = 1, jpkm1
[12624]	120	ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kaa) * (1._wp + r3t(:,:,Kaa) * tmask(:,:,jk))/(1._wp + r3t(:,:,Kmm) * tmask(:,:,jk)) &
	121	& - pts(:,:,jk,jp_tem,Kmm) ) * zfact
	122	ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kaa) * (1._wp + r3t(:,:,Kaa) * tmask(:,:,jk))/(1._wp + r3t(:,:,Kmm) * tmask(:,:,jk)) &
	123	& - pts(:,:,jk,jp_sal,Kmm) ) * zfact
[7646]	124	END DO
[11057]	125	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_tot, ztrdt )
	126	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_tot, ztrds )
[9019]	127	IF( ln_linssh ) THEN ! linear sea surface height only
[12581]	128	! Store now fields before applying the Asselin filter
[8698]	129	! in order to calculate Asselin filter trend later.
[12581]	130	ztrdt(:,:,:) = pts(:,:,:,jp_tem,Kmm)
[11057]	131	ztrds(:,:,:) = pts(:,:,:,jp_sal,Kmm)
[8698]	132	ENDIF
[1110]	133	ENDIF
	134
[12724]	135	IF( l_1st_euler ) THEN ! Euler time-stepping
[11099]	136	!
[9019]	137	IF (l_trdtra .AND. .NOT. ln_linssh ) THEN ! Zero Asselin filter contribution must be explicitly written out since for vvl
[11057]	138	! ! Asselin filter is output by tra_atf_vvl that is not called on this time step
[8698]	139	ztrdt(:,:,:) = 0._wp
	140	ztrds(:,:,:) = 0._wp
[11057]	141	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_atf, ztrdt )
	142	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_atf, ztrds )
[8698]	143	END IF
[6140]	144	!
[2528]	145	ELSE ! Leap-Frog + Asselin filter time stepping
	146	!
[12724]	147	IF ( ln_linssh ) THEN ; CALL tra_atf_fix_lf( kt, Kbb, Kmm, Kaa, nit000, 'TRA', pts, jpts ) ! linear free surface
	148	ELSE ; CALL tra_atf_qco_lf( kt, Kbb, Kmm, Kaa, nit000, rn_Dt, 'TRA', pts, sbc_tsc, sbc_tsc_b, jpts ) ! non-linear free surface
[2528]	149	ENDIF
[6140]	150	!
[12624]	151	CALL lbc_lnk_multi( 'traatfqco', pts(:,:,:,jp_tem,Kbb) , 'T', 1., pts(:,:,:,jp_sal,Kbb) , 'T', 1., &
[11057]	152	& pts(:,:,:,jp_tem,Kmm) , 'T', 1., pts(:,:,:,jp_sal,Kmm) , 'T', 1., &
	153	& pts(:,:,:,jp_tem,Kaa), 'T', 1., pts(:,:,:,jp_sal,Kaa), 'T', 1. )
[9094]	154	!
[12581]	155	ENDIF
[2715]	156	!
[12581]	157	IF( l_trdtra .AND. ln_linssh ) THEN ! trend of the Asselin filter (tb filtered - tb)/dt
[1110]	158	DO jk = 1, jpkm1
[12724]	159	ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kmm) - ztrdt(:,:,jk) ) * r1_Dt
	160	ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kmm) - ztrds(:,:,jk) ) * r1_Dt
[1110]	161	END DO
[11057]	162	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_atf, ztrdt )
	163	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_atf, ztrds )
[1438]	164	END IF
[9019]	165	IF( l_trdtra ) DEALLOCATE( ztrdt , ztrds )
[2715]	166	!
[1438]	167	! ! control print
[12236]	168	IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=pts(:,:,:,jp_tem,Kmm), clinfo1=' nxt - Tn: ', mask1=tmask, &
	169	& tab3d_2=pts(:,:,:,jp_sal,Kmm), clinfo2= ' Sn: ', mask2=tmask )
[1438]	170	!
[12624]	171	IF( ln_timing ) CALL timing_stop('tra_atf_qco')
[3294]	172	!
[12624]	173	END SUBROUTINE tra_atf_qco
[1438]	174
	175
[12581]	176	SUBROUTINE tra_atf_fix_lf( kt, Kbb, Kmm, Kaa, kit000, cdtype, pt, kjpt )
[1438]	177	!!----------------------------------------------------------------------
[11057]	178	!! * ROUTINE tra_atf_fix *
[1438]	179	!!
[11475]	180	!! ** Purpose : fixed volume: apply the Asselin time filter to the "now" field
[12581]	181	!!
[1438]	182	!! ** Method : - Apply a Asselin time filter on now fields.
	183	!!
[11475]	184	!! ** Action : - pt(Kmm) ready for the next time step
[1438]	185	!!----------------------------------------------------------------------
[11057]	186	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	187	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
	188	INTEGER , INTENT(in ) :: kit000 ! first time step index
	189	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
	190	INTEGER , INTENT(in ) :: kjpt ! number of tracers
	191	REAL(wp), DIMENSION(jpi,jpj,jpk,kjpt,jpt), INTENT(inout) :: pt ! tracer fields
[2715]	192	!
[2528]	193	INTEGER :: ji, jj, jk, jn ! dummy loop indices
	194	REAL(wp) :: ztn, ztd ! local scalars
[1438]	195	!!----------------------------------------------------------------------
[6140]	196	!
[3294]	197	IF( kt == kit000 ) THEN
[1438]	198	IF(lwp) WRITE(numout,*)
[12581]	199	IF(lwp) WRITE(numout,*) 'tra_atf_fix_lf : time filtering', cdtype
[1438]	200	IF(lwp) WRITE(numout,*) '~~~~~~~~~~~'
	201	ENDIF
	202	!
[2528]	203	DO jn = 1, kjpt
[1438]	204	!
[13295]	205	DO_3D( 0, 0, 0, 0, 1, jpkm1 )
[12581]	206	ztn = pt(ji,jj,jk,jn,Kmm)
[12340]	207	ztd = pt(ji,jj,jk,jn,Kaa) - 2._wp * ztn + pt(ji,jj,jk,jn,Kbb) ! time laplacian on tracers
	208	!
[12724]	209	pt(ji,jj,jk,jn,Kmm) = ztn + rn_atfp * ztd ! pt <-- filtered pt
[12340]	210	END_3D
[1110]	211	!
[2528]	212	END DO
[1438]	213	!
[12581]	214	END SUBROUTINE tra_atf_fix_lf
[3]	215
[1110]	216
[12624]	217	SUBROUTINE tra_atf_qco_lf( kt, Kbb, Kmm, Kaa, kit000, p2dt, cdtype, pt, psbc_tc, psbc_tc_b, kjpt )
[1438]	218	!!----------------------------------------------------------------------
[11057]	219	!! * ROUTINE tra_atf_vvl *
[1438]	220	!!
[12581]	221	!! ** Purpose : Time varying volume: apply the Asselin time filter
	222	!!
[1438]	223	!! ** Method : - Apply a thickness weighted Asselin time filter on now fields.
[12724]	224	!! pt(Kmm) = ( e3t_mpt(Kmm) + rn_atfp[ e3t_bpt(Kbb) - 2 e3t_mpt(Kmm) + e3t_a*pt(Kaa) ] )
	225	!! /( e3t_m + rn_atfp*[ e3t_b - 2 e3t_m + e3t_a ] )
[1438]	226	!!
[11475]	227	!! ** Action : - pt(Kmm) ready for the next time step
[1438]	228	!!----------------------------------------------------------------------
[11057]	229	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	230	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
	231	INTEGER , INTENT(in ) :: kit000 ! first time step index
	232	REAL(wp) , INTENT(in ) :: p2dt ! time-step
	233	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
	234	INTEGER , INTENT(in ) :: kjpt ! number of tracers
	235	REAL(wp), DIMENSION(jpi,jpj,jpk,kjpt,jpt), INTENT(inout) :: pt ! tracer fields
	236	REAL(wp), DIMENSION(jpi,jpj ,kjpt) , INTENT(in ) :: psbc_tc ! surface tracer content
	237	REAL(wp), DIMENSION(jpi,jpj ,kjpt) , INTENT(in ) :: psbc_tc_b ! before surface tracer content
[6140]	238	!
[5930]	239	LOGICAL :: ll_traqsr, ll_rnf, ll_isf ! local logical
[2528]	240	INTEGER :: ji, jj, jk, jn ! dummy loop indices
[8698]	241	REAL(wp) :: zfact, zfact1, ztc_a , ztc_n , ztc_b , ztc_f , ztc_d ! local scalar
[12732]	242	REAL(wp) :: zfact2, ze3t_b, ze3t_n, ze3t_a, ze3t_f ! - -
[9019]	243	REAL(wp), ALLOCATABLE, DIMENSION(:,:,:,:) :: ztrd_atf
[1438]	244	!!----------------------------------------------------------------------
[3294]	245	!
	246	IF( kt == kit000 ) THEN
[1438]	247	IF(lwp) WRITE(numout,*)
[12624]	248	IF(lwp) WRITE(numout,*) 'tra_atf_qco : time filtering', cdtype
[1438]	249	IF(lwp) WRITE(numout,*) '~~~~~~~~~~~'
	250	ENDIF
[2528]	251	!
[12581]	252	IF( cdtype == 'TRA' ) THEN
[2528]	253	ll_traqsr = ln_traqsr ! active tracers case and solar penetration
[5467]	254	ll_rnf = ln_rnf ! active tracers case and river runoffs
[6140]	255	ll_isf = ln_isf ! active tracers case and ice shelf melting
	256	ELSE ! passive tracers case
	257	ll_traqsr = .FALSE. ! NO solar penetration
[12581]	258	ll_rnf = .FALSE. ! NO river runoffs ???? !!gm BUG ?
	259	ll_isf = .FALSE. ! NO ice shelf melting/freezing !!gm BUG ??
[2528]	260	ENDIF
	261	!
[9019]	262	IF( ( l_trdtra .AND. cdtype == 'TRA' ) .OR. ( l_trdtrc .AND. cdtype == 'TRC' ) ) THEN
	263	ALLOCATE( ztrd_atf(jpi,jpj,jpk,kjpt) )
[8698]	264	ztrd_atf(:,:,:,:) = 0.0_wp
	265	ENDIF
[10095]	266	zfact = 1._wp / p2dt
[12724]	267	zfact1 = rn_atfp * p2dt
	268	zfact2 = zfact1 * r1_rho0
[12581]	269	DO jn = 1, kjpt
[13295]	270	DO_3D( 0, 0, 0, 0, 1, jpkm1 )
[12340]	271	ze3t_b = e3t(ji,jj,jk,Kbb)
	272	ze3t_n = e3t(ji,jj,jk,Kmm)
	273	ze3t_a = e3t(ji,jj,jk,Kaa)
	274	! ! tracer content at Before, now and after
	275	ztc_b = pt(ji,jj,jk,jn,Kbb) * ze3t_b
	276	ztc_n = pt(ji,jj,jk,jn,Kmm) * ze3t_n
	277	ztc_a = pt(ji,jj,jk,jn,Kaa) * ze3t_a
	278	!
	279	ztc_d = ztc_a - 2. * ztc_n + ztc_b
	280	!
[12724]	281	ztc_f = ztc_n + rn_atfp * ztc_d
[12340]	282	!
[12581]	283	! Asselin correction on scale factors is done via ssh in r3t_f
	284	ze3t_f = e3t_0(ji,jj,jk) * ( 1._wp + r3t_f(ji,jj) * tmask(ji,jj,jk) )
	285
[12372]	286	!
[12581]	287	IF( jk == mikt(ji,jj) ) THEN ! first level
[12340]	288	ztc_f = ztc_f - zfact1 * ( psbc_tc(ji,jj,jn) - psbc_tc_b(ji,jj,jn) )
	289	ENDIF
	290	!
	291	! solar penetration (temperature only)
[12581]	292	IF( ll_traqsr .AND. jn == jp_tem .AND. jk <= nksr ) &
	293	& ztc_f = ztc_f - zfact1 * ( qsr_hc(ji,jj,jk) - qsr_hc_b(ji,jj,jk) )
[12340]	294	!
	295	!
	296	IF( ll_rnf .AND. jk <= nk_rnf(ji,jj) ) &
[12581]	297	& ztc_f = ztc_f - zfact1 * ( rnf_tsc(ji,jj,jn) - rnf_tsc_b(ji,jj,jn) ) &
[12340]	298	& * e3t(ji,jj,jk,Kmm) / h_rnf(ji,jj)
[12156]	299
[12340]	300	!
	301	! ice shelf
	302	IF( ll_isf ) THEN
	303	!
	304	! melt in the cavity
	305	IF ( ln_isfcav_mlt ) THEN
	306	! level fully include in the Losch_2008 ice shelf boundary layer
	307	IF ( jk >= misfkt_cav(ji,jj) .AND. jk < misfkb_cav(ji,jj) ) THEN
	308	ztc_f = ztc_f - zfact1 * ( risf_cav_tsc(ji,jj,jn) - risf_cav_tsc_b(ji,jj,jn) ) &
	309	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_cav(ji,jj)
	310	END IF
[12581]	311	! level partially include in Losch_2008 ice shelf boundary layer
[12340]	312	IF ( jk == misfkb_cav(ji,jj) ) THEN
	313	ztc_f = ztc_f - zfact1 * ( risf_cav_tsc(ji,jj,jn) - risf_cav_tsc_b(ji,jj,jn) ) &
[12624]	314	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_cav(ji,jj) &
	315	& * rfrac_tbl_cav(ji,jj)
[12340]	316	END IF
	317	END IF
	318	!
	319	! parametrised melt (cavity closed)
	320	IF ( ln_isfpar_mlt ) THEN
	321	! level fully include in the Losch_2008 ice shelf boundary layer
	322	IF ( jk >= misfkt_par(ji,jj) .AND. jk < misfkb_par(ji,jj) ) THEN
	323	ztc_f = ztc_f - zfact1 * ( risf_par_tsc(ji,jj,jn) - risf_par_tsc_b(ji,jj,jn) ) &
	324	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_par(ji,jj)
	325	END IF
[12581]	326	! level partially include in Losch_2008 ice shelf boundary layer
[12340]	327	IF ( jk == misfkb_par(ji,jj) ) THEN
	328	ztc_f = ztc_f - zfact1 * ( risf_par_tsc(ji,jj,jn) - risf_par_tsc_b(ji,jj,jn) ) &
[12624]	329	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_par(ji,jj) &
	330	& * rfrac_tbl_par(ji,jj)
[12340]	331	END IF
	332	END IF
	333	!
	334	! ice sheet coupling correction
	335	IF ( ln_isfcpl ) THEN
[12156]	336	!
[12340]	337	! at kt = nit000, risfcpl_vol_n = 0 and risfcpl_vol_b = risfcpl_vol so contribution nul
	338	IF ( ln_rstart .AND. kt == nit000+1 ) THEN
	339	ztc_f = ztc_f + zfact1 * risfcpl_tsc(ji,jj,jk,jn) * r1_e1e2t(ji,jj)
[12372]	340	! Shouldn't volume increment be spread according thanks to zscale ?
[5643]	341	END IF
[6140]	342	!
[12340]	343	END IF
	344	!
	345	END IF
	346	!
	347	ze3t_f = 1.e0 / ze3t_f
	348	pt(ji,jj,jk,jn,Kmm) = ztc_f * ze3t_f ! time filtered "now" field
	349	!
	350	IF( ( l_trdtra .and. cdtype == 'TRA' ) .OR. ( l_trdtrc .and. cdtype == 'TRC' ) ) THEN
	351	ztrd_atf(ji,jj,jk,jn) = (ztc_f - ztc_n) * zfact/ze3t_n
	352	ENDIF
	353	!
	354	END_3D
[12581]	355	!
[2528]	356	END DO
[503]	357	!
[9019]	358	IF( ( l_trdtra .AND. cdtype == 'TRA' ) .OR. ( l_trdtrc .AND. cdtype == 'TRC' ) ) THEN
[12581]	359	IF( l_trdtra .AND. cdtype == 'TRA' ) THEN
[11057]	360	CALL trd_tra( kt, Kmm, Kaa, cdtype, jp_tem, jptra_atf, ztrd_atf(:,:,:,jp_tem) )
	361	CALL trd_tra( kt, Kmm, Kaa, cdtype, jp_sal, jptra_atf, ztrd_atf(:,:,:,jp_sal) )
[9019]	362	ENDIF
	363	IF( l_trdtrc .AND. cdtype == 'TRC' ) THEN
	364	DO jn = 1, kjpt
[11057]	365	CALL trd_tra( kt, Kmm, Kaa, cdtype, jn, jptra_atf, ztrd_atf(:,:,:,jn) )
[9019]	366	END DO
	367	ENDIF
	368	DEALLOCATE( ztrd_atf )
[8698]	369	ENDIF
	370	!
[12624]	371	END SUBROUTINE tra_atf_qco_lf
[3]	372
	373	!!======================================================================
[12624]	374	END MODULE traatfqco

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