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traatf.F90 in NEMO/branches/2020/dev_r14116_HPC-04_mcastril_Mixed_Precision_implementation_final/src/OCE/TRA – NEMO

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source: NEMO/branches/2020/dev_r14116_HPC-04_mcastril_Mixed_Precision_implementation_final/src/OCE/TRA/traatf.F90 @ 14986

Last change on this file since 14986 was 14644, checked in by sparonuz, 3 years ago
Merge trunk -r14642:HEAD
Property svn:keywords set to `Id`
File size: 19.7 KB

Rev	Line
[11057]	1	MODULE traatf
[3]	2	!!======================================================================
[11057]	3	!! * MODULE traatf *
[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
[11475]	19	!! 4.1 ! 2019-08 (A. Coward, D. Storkey) rename tranxt.F90 -> traatf.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
[14072]	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
[14072]	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
[11057]	54	PUBLIC tra_atf ! routine called by step.F90
	55	PUBLIC tra_atf_fix ! to be used in trcnxt
	56	PUBLIC tra_atf_vvl ! to be used in trcnxt
[592]	57
	58	!! * Substitutions
[12340]	59	# include "do_loop_substitute.h90"
[13237]	60	# include "domzgr_substitute.h90"
[14219]	61	# include "single_precision_substitute.h90"
[3]	62	!!----------------------------------------------------------------------
[10068]	63	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
[2715]	64	!! $Id$
[10068]	65	!! Software governed by the CeCILL license (see ./LICENSE)
[3]	66	!!----------------------------------------------------------------------
	67	CONTAINS
	68
[11057]	69	SUBROUTINE tra_atf( kt, Kbb, Kmm, Kaa, pts )
[3]	70	!!----------------------------------------------------------------------
[11057]	71	!! * ROUTINE traatf *
[3]	72	!!
[14072]	73	!! ** Purpose : Apply the boundary condition on the after temperature
[11475]	74	!! and salinity fields and add the Asselin time filter on now fields.
[14072]	75	!!
	76	!! ** Method : At this stage of the computation, ta and sa are the
[1110]	77	!! after temperature and salinity as the time stepping has
	78	!! been performed in trazdf_imp or trazdf_exp module.
[3]	79	!!
[14072]	80	!! - Apply lateral boundary conditions on (ta,sa)
	81	!! at the local domain boundaries through lbc_lnk call,
	82	!! at the one-way open boundaries (ln_bdy=T),
[4990]	83	!! at the AGRIF zoom boundaries (lk_agrif=T)
[1110]	84	!!
[1438]	85	!! - Update lateral boundary conditions on AGRIF children
	86	!! domains (lk_agrif=T)
[1110]	87	!!
[11475]	88	!! ** Action : - ts(Kmm) time filtered
[503]	89	!!----------------------------------------------------------------------
[11057]	90	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	91	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
[14219]	92	REAL(dp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers
[503]	93	!!
[6140]	94	INTEGER :: ji, jj, jk, jn ! dummy loop indices
	95	REAL(wp) :: zfact ! local scalars
[9019]	96	REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdt, ztrds
[3]	97	!!----------------------------------------------------------------------
[3294]	98	!
[11057]	99	IF( ln_timing ) CALL timing_start( 'tra_atf')
[3294]	100	!
[1110]	101	IF( kt == nit000 ) THEN
	102	IF(lwp) WRITE(numout,*)
[11475]	103	IF(lwp) WRITE(numout,*) 'tra_atf : apply Asselin time filter to "now" fields'
[1110]	104	IF(lwp) WRITE(numout,*) '~~~~~~~'
[592]	105	ENDIF
	106
[1110]	107	! Update after tracer on domain lateral boundaries
[14072]	108	!
[5656]	109	#if defined key_agrif
	110	CALL Agrif_tra ! AGRIF zoom boundaries
	111	#endif
[9094]	112	! ! local domain boundaries (T-point, unchanged sign)
[14644]	113	CALL lbc_lnk( 'traatf', pts(:,:,:,jp_tem,Kaa), 'T', 1.0_wp, pts(:,:,:,jp_sal,Kaa), 'T', 1.0_wp )
[5656]	114	!
[11057]	115	IF( ln_bdy ) CALL bdy_tra( kt, Kbb, pts, Kaa ) ! BDY open boundaries
[14072]	116
[1110]	117	! trends computation initialisation
[14072]	118	IF( l_trdtra ) THEN
[9019]	119	ALLOCATE( ztrdt(jpi,jpj,jpk) , ztrds(jpi,jpj,jpk) )
[14045]	120	ztrdt(:,:,:) = 0._wp
	121	ztrds(:,:,:) = 0._wp
[14072]	122	IF( ln_traldf_iso ) THEN ! diagnose the "pure" Kz diffusive trend
[11057]	123	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_zdfp, ztrdt )
	124	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_zdfp, ztrds )
[4990]	125	ENDIF
[14072]	126	! total trend for the non-time-filtered variables.
[12489]	127	zfact = 1.0 / rn_Dt
[11057]	128	! G Nurser 23 Mar 2017. Recalculate trend as Delta(e3t*T)/e3tn; e3tn cancel from pts(Kmm) terms
[7646]	129	DO jk = 1, jpkm1
[11057]	130	ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kaa)e3t(:,:,jk,Kaa) / e3t(:,:,jk,Kmm) - pts(:,:,jk,jp_tem,Kmm)) zfact
	131	ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kaa)e3t(:,:,jk,Kaa) / e3t(:,:,jk,Kmm) - pts(:,:,jk,jp_sal,Kmm)) zfact
[7646]	132	END DO
[11057]	133	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_tot, ztrdt )
	134	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_tot, ztrds )
[9019]	135	IF( ln_linssh ) THEN ! linear sea surface height only
[14072]	136	! Store now fields before applying the Asselin filter
[8698]	137	! in order to calculate Asselin filter trend later.
[14072]	138	ztrdt(:,:,:) = pts(:,:,:,jp_tem,Kmm)
[11057]	139	ztrds(:,:,:) = pts(:,:,:,jp_sal,Kmm)
[8698]	140	ENDIF
[1110]	141	ENDIF
	142
[14072]	143	IF( l_1st_euler ) THEN ! Euler time-stepping
[11099]	144	!
[9019]	145	IF (l_trdtra .AND. .NOT. ln_linssh ) THEN ! Zero Asselin filter contribution must be explicitly written out since for vvl
[11057]	146	! ! Asselin filter is output by tra_atf_vvl that is not called on this time step
[8698]	147	ztrdt(:,:,:) = 0._wp
	148	ztrds(:,:,:) = 0._wp
[11057]	149	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_atf, ztrdt )
	150	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_atf, ztrds )
[8698]	151	END IF
[6140]	152	!
[2528]	153	ELSE ! Leap-Frog + Asselin filter time stepping
	154	!
[14219]	155	IF( ln_linssh ) THEN ; CALL tra_atf_fix( kt, Kbb, Kmm, Kaa, nit000, 'TRA', pts, jpts ) ! linear free surface
	156	ELSE ; CALL tra_atf_vvl( kt, Kbb, Kmm, Kaa, nit000, CASTWP(rn_Dt), 'TRA', pts, sbc_tsc, sbc_tsc_b, jpts ) ! non-linear free surface
[2528]	157	ENDIF
[6140]	158	!
[14644]	159	CALL lbc_lnk( 'traatf', pts(:,:,:,jp_tem,Kmm) , 'T', 1.0_wp, pts(:,:,:,jp_sal,Kmm) , 'T', 1.0_wp )
[13982]	160
[14072]	161	ENDIF
[2715]	162	!
[14072]	163	IF( l_trdtra .AND. ln_linssh ) THEN ! trend of the Asselin filter (tb filtered - tb)/dt
[1110]	164	DO jk = 1, jpkm1
[13237]	165	ztrdt(:,:,jk) = ( pts(:,:,jk,jp_tem,Kmm) - ztrdt(:,:,jk) ) * r1_Dt
	166	ztrds(:,:,jk) = ( pts(:,:,jk,jp_sal,Kmm) - ztrds(:,:,jk) ) * r1_Dt
[1110]	167	END DO
[11057]	168	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_tem, jptra_atf, ztrdt )
	169	CALL trd_tra( kt, Kmm, Kaa, 'TRA', jp_sal, jptra_atf, ztrds )
[1438]	170	END IF
[9019]	171	IF( l_trdtra ) DEALLOCATE( ztrdt , ztrds )
[2715]	172	!
[1438]	173	! ! control print
[14219]	174	IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=CASTWP(pts(:,:,:,jp_tem,Kmm)), clinfo1=' nxt - Tn: ', mask1=tmask, &
	175	& tab3d_2=CASTWP(pts(:,:,:,jp_sal,Kmm)), clinfo2= ' Sn: ', mask2=tmask )
[1438]	176	!
[11057]	177	IF( ln_timing ) CALL timing_stop('tra_atf')
[3294]	178	!
[11057]	179	END SUBROUTINE tra_atf
[1438]	180
	181
[11099]	182	SUBROUTINE tra_atf_fix( kt, Kbb, Kmm, Kaa, kit000, cdtype, pt, kjpt )
[1438]	183	!!----------------------------------------------------------------------
[11057]	184	!! * ROUTINE tra_atf_fix *
[1438]	185	!!
[11475]	186	!! ** Purpose : fixed volume: apply the Asselin time filter to the "now" field
[14072]	187	!!
[1438]	188	!! ** Method : - Apply a Asselin time filter on now fields.
	189	!!
[11475]	190	!! ** Action : - pt(Kmm) ready for the next time step
[1438]	191	!!----------------------------------------------------------------------
[11057]	192	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	193	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
	194	INTEGER , INTENT(in ) :: kit000 ! first time step index
	195	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
	196	INTEGER , INTENT(in ) :: kjpt ! number of tracers
[14219]	197	REAL(dp), DIMENSION(jpi,jpj,jpk,kjpt,jpt), INTENT(inout) :: pt ! tracer fields
[2715]	198	!
[2528]	199	INTEGER :: ji, jj, jk, jn ! dummy loop indices
	200	REAL(wp) :: ztn, ztd ! local scalars
[1438]	201	!!----------------------------------------------------------------------
[6140]	202	!
[3294]	203	IF( kt == kit000 ) THEN
[1438]	204	IF(lwp) WRITE(numout,*)
[11475]	205	IF(lwp) WRITE(numout,*) 'tra_atf_fix : time filtering', cdtype
[1438]	206	IF(lwp) WRITE(numout,*) '~~~~~~~~~~~'
	207	ENDIF
	208	!
[2528]	209	DO jn = 1, kjpt
[1438]	210	!
[13982]	211	DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpkm1 )
[14072]	212	ztn = pt(ji,jj,jk,jn,Kmm)
[12340]	213	ztd = pt(ji,jj,jk,jn,Kaa) - 2._wp * ztn + pt(ji,jj,jk,jn,Kbb) ! time laplacian on tracers
	214	!
[12489]	215	pt(ji,jj,jk,jn,Kmm) = ztn + rn_atfp * ztd ! pt <-- filtered pt
[12340]	216	END_3D
[1110]	217	!
[2528]	218	END DO
[1438]	219	!
[11057]	220	END SUBROUTINE tra_atf_fix
[3]	221
[1110]	222
[11057]	223	SUBROUTINE tra_atf_vvl( kt, Kbb, Kmm, Kaa, kit000, p2dt, cdtype, pt, psbc_tc, psbc_tc_b, kjpt )
[1438]	224	!!----------------------------------------------------------------------
[11057]	225	!! * ROUTINE tra_atf_vvl *
[1438]	226	!!
[14072]	227	!! ** Purpose : Time varying volume: apply the Asselin time filter
	228	!!
[1438]	229	!! ** Method : - Apply a thickness weighted Asselin time filter on now fields.
[13237]	230	!! pt(Kmm) = ( e3t_Kmmpt(Kmm) + rn_atfp[ e3t_Kbbpt(Kbb) - 2 e3t_Kmmpt(Kmm) + e3t_Kaa*pt(Kaa) ] )
	231	!! /( e3t_Kmm + rn_atfp*[ e3t_Kbb - 2 e3t_Kmm + e3t_Kaa ] )
[1438]	232	!!
[11475]	233	!! ** Action : - pt(Kmm) ready for the next time step
[1438]	234	!!----------------------------------------------------------------------
[11057]	235	INTEGER , INTENT(in ) :: kt ! ocean time-step index
	236	INTEGER , INTENT(in ) :: Kbb, Kmm, Kaa ! time level indices
	237	INTEGER , INTENT(in ) :: kit000 ! first time step index
	238	REAL(wp) , INTENT(in ) :: p2dt ! time-step
	239	CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator)
	240	INTEGER , INTENT(in ) :: kjpt ! number of tracers
[14219]	241	REAL(dp), DIMENSION(jpi,jpj,jpk,kjpt,jpt), INTENT(inout) :: pt ! tracer fields
[11057]	242	REAL(wp), DIMENSION(jpi,jpj ,kjpt) , INTENT(in ) :: psbc_tc ! surface tracer content
	243	REAL(wp), DIMENSION(jpi,jpj ,kjpt) , INTENT(in ) :: psbc_tc_b ! before surface tracer content
[6140]	244	!
[5930]	245	LOGICAL :: ll_traqsr, ll_rnf, ll_isf ! local logical
[2528]	246	INTEGER :: ji, jj, jk, jn ! dummy loop indices
[14219]	247	REAL(dp) :: zfact, zfact1, ztc_a , ztc_n , ztc_b , ztc_f , ztc_d ! local scalar
	248	REAL(dp) :: zfact2, ze3t_b, ze3t_n, ze3t_a, ze3t_f, ze3t_d, zscale ! - -
[9019]	249	REAL(wp), ALLOCATABLE, DIMENSION(:,:,:,:) :: ztrd_atf
[1438]	250	!!----------------------------------------------------------------------
[3294]	251	!
	252	IF( kt == kit000 ) THEN
[1438]	253	IF(lwp) WRITE(numout,*)
[11475]	254	IF(lwp) WRITE(numout,*) 'tra_atf_vvl : time filtering', cdtype
[1438]	255	IF(lwp) WRITE(numout,*) '~~~~~~~~~~~'
	256	ENDIF
[2528]	257	!
[14072]	258	IF( cdtype == 'TRA' ) THEN
[2528]	259	ll_traqsr = ln_traqsr ! active tracers case and solar penetration
[5467]	260	ll_rnf = ln_rnf ! active tracers case and river runoffs
[6140]	261	ll_isf = ln_isf ! active tracers case and ice shelf melting
	262	ELSE ! passive tracers case
	263	ll_traqsr = .FALSE. ! NO solar penetration
[14072]	264	ll_rnf = .FALSE. ! NO river runoffs ???? !!gm BUG ?
	265	ll_isf = .FALSE. ! NO ice shelf melting/freezing !!gm BUG ??
[2528]	266	ENDIF
	267	!
[9019]	268	IF( ( l_trdtra .AND. cdtype == 'TRA' ) .OR. ( l_trdtrc .AND. cdtype == 'TRC' ) ) THEN
	269	ALLOCATE( ztrd_atf(jpi,jpj,jpk,kjpt) )
[8698]	270	ztrd_atf(:,:,:,:) = 0.0_wp
	271	ENDIF
[10095]	272	zfact = 1._wp / p2dt
[12489]	273	zfact1 = rn_atfp * p2dt
	274	zfact2 = zfact1 * r1_rho0
[14072]	275	DO jn = 1, kjpt
[13982]	276	DO_3D( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpkm1 )
[12340]	277	ze3t_b = e3t(ji,jj,jk,Kbb)
	278	ze3t_n = e3t(ji,jj,jk,Kmm)
	279	ze3t_a = e3t(ji,jj,jk,Kaa)
	280	! ! tracer content at Before, now and after
	281	ztc_b = pt(ji,jj,jk,jn,Kbb) * ze3t_b
	282	ztc_n = pt(ji,jj,jk,jn,Kmm) * ze3t_n
	283	ztc_a = pt(ji,jj,jk,jn,Kaa) * ze3t_a
	284	!
	285	ze3t_d = ze3t_a - 2. * ze3t_n + ze3t_b
	286	ztc_d = ztc_a - 2. * ztc_n + ztc_b
	287	!
[12489]	288	ze3t_f = ze3t_n + rn_atfp * ze3t_d
	289	ztc_f = ztc_n + rn_atfp * ztc_d
[12340]	290	!
[12372]	291	! Add asselin correction on scale factors:
[14072]	292	zscale = tmask(ji,jj,jk) * e3t(ji,jj,jk,Kmm) / ( ht(ji,jj) + 1._wp - ssmask(ji,jj) )
	293	ze3t_f = ze3t_f - zfact2 * zscale * ( emp_b(ji,jj) - emp(ji,jj) )
	294	IF ( ll_rnf ) ze3t_f = ze3t_f + zfact2 * zscale * ( rnf_b(ji,jj) - rnf(ji,jj) )
[12372]	295	IF ( ll_isf ) THEN
	296	IF ( ln_isfcav_mlt ) ze3t_f = ze3t_f - zfact2 * zscale * ( fwfisf_cav_b(ji,jj) - fwfisf_cav(ji,jj) )
	297	IF ( ln_isfpar_mlt ) ze3t_f = ze3t_f - zfact2 * zscale * ( fwfisf_par_b(ji,jj) - fwfisf_par(ji,jj) )
	298	ENDIF
	299	!
[14072]	300	IF( jk == mikt(ji,jj) ) THEN ! first level
[12340]	301	ztc_f = ztc_f - zfact1 * ( psbc_tc(ji,jj,jn) - psbc_tc_b(ji,jj,jn) )
	302	ENDIF
	303	!
	304	! solar penetration (temperature only)
[14072]	305	IF( ll_traqsr .AND. jn == jp_tem .AND. jk <= nksr ) &
	306	& ztc_f = ztc_f - zfact1 * ( qsr_hc(ji,jj,jk) - qsr_hc_b(ji,jj,jk) )
[12340]	307	!
	308	!
	309	IF( ll_rnf .AND. jk <= nk_rnf(ji,jj) ) &
[14072]	310	& ztc_f = ztc_f - zfact1 * ( rnf_tsc(ji,jj,jn) - rnf_tsc_b(ji,jj,jn) ) &
[12340]	311	& * e3t(ji,jj,jk,Kmm) / h_rnf(ji,jj)
[12156]	312
[12340]	313	!
	314	! ice shelf
	315	IF( ll_isf ) THEN
	316	!
	317	! melt in the cavity
	318	IF ( ln_isfcav_mlt ) THEN
	319	! level fully include in the Losch_2008 ice shelf boundary layer
	320	IF ( jk >= misfkt_cav(ji,jj) .AND. jk < misfkb_cav(ji,jj) ) THEN
	321	ztc_f = ztc_f - zfact1 * ( risf_cav_tsc(ji,jj,jn) - risf_cav_tsc_b(ji,jj,jn) ) &
	322	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_cav(ji,jj)
	323	END IF
[14072]	324	! level partially include in Losch_2008 ice shelf boundary layer
[12340]	325	IF ( 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) * rfrac_tbl_cav(ji,jj)
	328	END IF
	329	END IF
	330	!
	331	! parametrised melt (cavity closed)
	332	IF ( ln_isfpar_mlt ) THEN
	333	! level fully include in the Losch_2008 ice shelf boundary layer
	334	IF ( jk >= misfkt_par(ji,jj) .AND. jk < misfkb_par(ji,jj) ) THEN
	335	ztc_f = ztc_f - zfact1 * ( risf_par_tsc(ji,jj,jn) - risf_par_tsc_b(ji,jj,jn) ) &
	336	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_par(ji,jj)
	337	END IF
[14072]	338	! level partially include in Losch_2008 ice shelf boundary layer
[12340]	339	IF ( jk == misfkb_par(ji,jj) ) THEN
	340	ztc_f = ztc_f - zfact1 * ( risf_par_tsc(ji,jj,jn) - risf_par_tsc_b(ji,jj,jn) ) &
	341	& * e3t(ji,jj,jk,Kmm) / rhisf_tbl_par(ji,jj) * rfrac_tbl_par(ji,jj)
	342	END IF
	343	END IF
	344	!
	345	! ice sheet coupling correction
	346	IF ( ln_isfcpl ) THEN
[12156]	347	!
[12340]	348	! at kt = nit000, risfcpl_vol_n = 0 and risfcpl_vol_b = risfcpl_vol so contribution nul
	349	IF ( ln_rstart .AND. kt == nit000+1 ) THEN
	350	ztc_f = ztc_f + zfact1 * risfcpl_tsc(ji,jj,jk,jn) * r1_e1e2t(ji,jj)
[12372]	351	! Shouldn't volume increment be spread according thanks to zscale ?
[12340]	352	ze3t_f = ze3t_f - zfact1 * risfcpl_vol(ji,jj,jk ) * r1_e1e2t(ji,jj)
[5643]	353	END IF
[6140]	354	!
[12340]	355	END IF
	356	!
	357	END IF
	358	!
	359	ze3t_f = 1.e0 / ze3t_f
	360	pt(ji,jj,jk,jn,Kmm) = ztc_f * ze3t_f ! time filtered "now" field
	361	!
	362	IF( ( l_trdtra .and. cdtype == 'TRA' ) .OR. ( l_trdtrc .and. cdtype == 'TRC' ) ) THEN
	363	ztrd_atf(ji,jj,jk,jn) = (ztc_f - ztc_n) * zfact/ze3t_n
	364	ENDIF
	365	!
	366	END_3D
[14072]	367	!
[2528]	368	END DO
[503]	369	!
[9019]	370	IF( ( l_trdtra .AND. cdtype == 'TRA' ) .OR. ( l_trdtrc .AND. cdtype == 'TRC' ) ) THEN
[14072]	371	IF( l_trdtra .AND. cdtype == 'TRA' ) THEN
[11057]	372	CALL trd_tra( kt, Kmm, Kaa, cdtype, jp_tem, jptra_atf, ztrd_atf(:,:,:,jp_tem) )
	373	CALL trd_tra( kt, Kmm, Kaa, cdtype, jp_sal, jptra_atf, ztrd_atf(:,:,:,jp_sal) )
[9019]	374	ENDIF
	375	IF( l_trdtrc .AND. cdtype == 'TRC' ) THEN
	376	DO jn = 1, kjpt
[11057]	377	CALL trd_tra( kt, Kmm, Kaa, cdtype, jn, jptra_atf, ztrd_atf(:,:,:,jn) )
[9019]	378	END DO
	379	ENDIF
	380	DEALLOCATE( ztrd_atf )
[8698]	381	ENDIF
	382	!
[11057]	383	END SUBROUTINE tra_atf_vvl
[3]	384
	385	!!======================================================================
[11057]	386	END MODULE traatf

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