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step.F90

Last change on this file was 9259, checked in by jcastill, 6 years ago
Changes to stop reading and using the pressure forcing file when coupling to the atmospheric mean sea level pressure
File size: 23.9 KB

Rev	Line
[3]	1	MODULE step
	2	!!======================================================================
	3	!! * MODULE step *
	4	!! Time-stepping : manager of the ocean, tracer and ice time stepping
	5	!!======================================================================
[1438]	6	!! History : OPA ! 1991-03 (G. Madec) Original code
[1492]	7	!! - ! 1991-11 (G. Madec)
	8	!! - ! 1992-06 (M. Imbard) add a first output record
	9	!! - ! 1996-04 (G. Madec) introduction of dynspg
	10	!! - ! 1996-04 (M.A. Foujols) introduction of passive tracer
[1438]	11	!! 8.0 ! 1997-06 (G. Madec) new architecture of call
	12	!! 8.2 ! 1997-06 (G. Madec, M. Imbard, G. Roullet) free surface
	13	!! - ! 1999-02 (G. Madec, N. Grima) hpg implicit
	14	!! - ! 2000-07 (J-M Molines, M. Imbard) Open Bondary Conditions
	15	!! NEMO 1.0 ! 2002-06 (G. Madec) free form, suppress macro-tasking
	16	!! - ! 2004-08 (C. Talandier) New trends organization
[1492]	17	!! - ! 2005-01 (C. Ethe) Add the KPP closure scheme
	18	!! - ! 2005-11 (G. Madec) Reorganisation of tra and dyn calls
	19	!! - ! 2006-01 (L. Debreu, C. Mazauric) Agrif implementation
	20	!! - ! 2006-07 (S. Masson) restart using iom
[1438]	21	!! 3.2 ! 2009-02 (G. Madec, R. Benshila) reintroduicing z*-coordinate
[1533]	22	!! - ! 2009-06 (S. Masson, G. Madec) TKE restart compatible with key_cpl
[2528]	23	!! 3.3 ! 2010-05 (K. Mogensen, A. Weaver, M. Martin, D. Lea) Assimilation interface
	24	!! - ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase + merge TRC-TRA
[3294]	25	!! 3.4 ! 2011-04 (G. Madec, C. Ethe) Merge of dtatem and dtasal
[4990]	26	!! ! 2012-07 (J. Simeon, G. Madec, C. Ethe) Online coarsening of outputs
[7471]	27	!! 3.6 ! 2014-10 (E. Clementi, P. Oddo) Add Qiao vertical mixing in case of waves
[4990]	28	!! 3.7 ! 2014-04 (F. Roquet, G. Madec) New equations of state
[3]	29	!!----------------------------------------------------------------------
[888]	30
	31	!!----------------------------------------------------------------------
[2528]	32	!! stp : OPA system time-stepping
[3]	33	!!----------------------------------------------------------------------
[3764]	34	USE step_oce ! time stepping definition modules
[4990]	35	USE iom
[389]	36
[3]	37	IMPLICIT NONE
	38	PRIVATE
	39
[2528]	40	PUBLIC stp ! called by opa.F90
[3]	41
	42	!! * Substitutions
	43	# include "domzgr_substitute.h90"
[4990]	44	!!gm # include "zdfddm_substitute.h90"
[3]	45	!!----------------------------------------------------------------------
[4990]	46	!! NEMO/OPA 3.7 , NEMO Consortium (2014)
[888]	47	!! $Id$
[2528]	48	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[3]	49	!!----------------------------------------------------------------------
	50	CONTAINS
	51
[508]	52	#if defined key_agrif
[6204]	53	RECURSIVE SUBROUTINE stp( )
[1438]	54	INTEGER :: kstp ! ocean time-step index
[508]	55	#else
[467]	56	SUBROUTINE stp( kstp )
[1438]	57	INTEGER, INTENT(in) :: kstp ! ocean time-step index
[467]	58	#endif
	59	!!----------------------------------------------------------------------
[3]	60	!! * ROUTINE stp *
[3764]	61	!!
[3]	62	!! ** Purpose : - Time stepping of OPA (momentum and active tracer eqs.)
	63	!! - Time stepping of LIM (dynamic and thermodynamic eqs.)
	64	!! - Tme stepping of TRC (passive tracer eqs.)
[3764]	65	!!
	66	!! ** Method : -1- Update forcings and data
	67	!! -2- Update ocean physics
	68	!! -3- Compute the t and s trends
	69	!! -4- Update t and s
[3]	70	!! -5- Compute the momentum trends
	71	!! -6- Update the horizontal velocity
	72	!! -7- Compute the diagnostics variables (rd,N2, div,cur,w)
	73	!! -8- Outputs and diagnostics
	74	!!----------------------------------------------------------------------
[7471]	75	INTEGER :: ji,jj,jk ! dummy loop indice
[3]	76	INTEGER :: indic ! error indicator if < 0
[4338]	77	INTEGER :: kcall ! optional integer argument (dom_vvl_sf_nxt)
[3]	78	!! ---------------------------------------------------------------------
	79
[392]	80	#if defined key_agrif
[389]	81	kstp = nit000 + Agrif_Nb_Step()
[6204]	82	IF ( lk_agrif_debug ) THEN
	83	IF ( Agrif_Root() .and. lwp) Write(,) '---'
	84	IF (lwp) Write(,) 'Grid Number',Agrif_Fixed(),' time step ',kstp, 'int tstep',Agrif_NbStepint()
	85	ENDIF
	86
[4491]	87	IF ( kstp == (nit000 + 1) ) lk_agrif_fstep = .FALSE.
[6204]	88
[1793]	89	# if defined key_iomput
[5407]	90	IF( Agrif_Nbstepint() == 0 ) CALL iom_swap( cxios_context )
[3764]	91	# endif
	92	#endif
[4152]	93	indic = 0 ! reset to no error condition
	94	IF( kstp == nit000 ) THEN
[5407]	95	! must be done after nemo_init for AGRIF+XIOS+OASIS
	96	CALL iom_init( cxios_context ) ! iom_put initialization
	97	IF( ln_crs ) CALL iom_init( TRIM(cxios_context)//"_crs" ) ! initialize context for coarse grid
[4152]	98	ENDIF
[4147]	99
[1725]	100	IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init)
[5407]	101	CALL iom_setkt( kstp - nit000 + 1, cxios_context ) ! tell iom we are at time step kstp
	102	IF( ln_crs ) CALL iom_setkt( kstp - nit000 + 1, TRIM(cxios_context)//"_crs" ) ! tell iom we are at time step kstp
[3]	103
	104	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[888]	105	! Update data, open boundaries, surface boundary condition (including sea-ice)
[3]	106	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[3294]	107	IF( lk_tide ) CALL sbc_tide( kstp )
[9259]	108	CALL sbc ( kstp ) ! Sea Boundary Condition (including sea-ice)
[4292]	109	! clem: moved here for bdy ice purpose
[3]	110	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[5329]	111	! Update stochastic parameters and random T/S fluctuations
	112	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[6204]	113	IF( ln_sto_eos ) CALL sto_par( kstp ) ! Stochastic parameters
	114	IF( ln_sto_eos ) CALL sto_pts( tsn ) ! Random T/S fluctuations
[5329]	115
	116	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[3294]	117	! Ocean physics update (ua, va, tsa used as workspace)
[3]	118	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[4990]	119	! THERMODYNAMICS
	120	CALL eos_rab( tsb, rab_b ) ! before local thermal/haline expension ratio at T-points
	121	CALL eos_rab( tsn, rab_n ) ! now local thermal/haline expension ratio at T-points
	122	CALL bn2 ( tsb, rab_b, rn2b ) ! before Brunt-Vaisala frequency
	123	CALL bn2 ( tsn, rab_n, rn2 ) ! now Brunt-Vaisala frequency
[1492]	124	!
[3764]	125	! VERTICAL PHYSICS
[4369]	126	CALL zdf_bfr( kstp ) ! bottom friction (if quadratic)
[1492]	127	! ! Vertical eddy viscosity and diffusivity coefficients
[2528]	128	IF( lk_zdfric ) CALL zdf_ric( kstp ) ! Richardson number dependent Kz
	129	IF( lk_zdftke ) CALL zdf_tke( kstp ) ! TKE closure scheme for Kz
	130	IF( lk_zdfgls ) CALL zdf_gls( kstp ) ! GLS closure scheme for Kz
[7471]	131	IF( ln_zdfqiao ) CALL zdf_qiao( kstp ) ! Qiao vertical mixing
	132	!
[2528]	133	IF( lk_zdfkpp ) CALL zdf_kpp( kstp ) ! KPP closure scheme for Kz
[4292]	134	IF( lk_zdfcst ) THEN ! Constant Kz (reset avt, avm[uv] to the background value)
[5120]	135	avt (:,:,:) = rn_avt0 * wmask (:,:,:)
	136	avmu(:,:,:) = rn_avm0 * wumask(:,:,:)
	137	avmv(:,:,:) = rn_avm0 * wvmask(:,:,:)
[677]	138	ENDIF
[1492]	139	IF( ln_rnf_mouth ) THEN ! increase diffusivity at rivers mouths
[1246]	140	DO jk = 2, nkrnf ; avt(:,:,jk) = avt(:,:,jk) + 2.e0 * rn_avt_rnf * rnfmsk(:,:) * tmask(:,:,jk) ; END DO
[3]	141	ENDIF
[1492]	142	IF( ln_zdfevd ) CALL zdf_evd( kstp ) ! enhanced vertical eddy diffusivity
[3]	143
[1492]	144	IF( lk_zdftmx ) CALL zdf_tmx( kstp ) ! tidal vertical mixing
[3]	145
[888]	146	IF( lk_zdfddm .AND. .NOT. lk_zdfkpp ) &
[1492]	147	& CALL zdf_ddm( kstp ) ! double diffusive mixing
[3764]	148
[1492]	149	CALL zdf_mxl( kstp ) ! mixed layer depth
[3]	150
[2528]	151	! write TKE or GLS information in the restart file
[1531]	152	IF( lrst_oce .AND. lk_zdftke ) CALL tke_rst( kstp, 'WRITE' )
[2528]	153	IF( lrst_oce .AND. lk_zdfgls ) CALL gls_rst( kstp, 'WRITE' )
[1492]	154	!
[3764]	155	! LATERAL PHYSICS
[1492]	156	!
	157	IF( lk_ldfslp ) THEN ! slope of lateral mixing
[5120]	158	CALL eos( tsb, rhd, gdept_0(:,:,:) ) ! before in situ density
	159	IF( ln_zps .AND. .NOT. ln_isfcav) &
	160	& CALL zps_hde ( kstp, jpts, tsb, gtsu, gtsv, & ! Partial steps: before horizontal gradient
	161	& rhd, gru , grv ) ! of t, s, rd at the last ocean level
	162	IF( ln_zps .AND. ln_isfcav) &
	163	& CALL zps_hde_isf( kstp, jpts, tsb, gtsu, gtsv, & ! Partial steps for top cell (ISF)
	164	& rhd, gru , grv , aru , arv , gzu , gzv , ge3ru , ge3rv , &
	165	& gtui, gtvi, grui, grvi, arui, arvi, gzui, gzvi, ge3rui, ge3rvi ) ! of t, s, rd at the first ocean level
[2528]	166	IF( ln_traldf_grif ) THEN ! before slope for Griffies operator
	167	CALL ldf_slp_grif( kstp )
	168	ELSE
	169	CALL ldf_slp( kstp, rhd, rn2b ) ! before slope for Madec operator
	170	ENDIF
[1481]	171	ENDIF
[3]	172	#if defined key_traldf_c2d
[1492]	173	IF( lk_traldf_eiv ) CALL ldf_eiv( kstp ) ! eddy induced velocity coefficient
[2528]	174	#endif
[5407]	175	#if defined key_traldf_c3d && defined key_traldf_smag
[3634]	176	CALL ldf_tra_smag( kstp ) ! eddy induced velocity coefficient
	177	# endif
[5407]	178	#if defined key_dynldf_c3d && defined key_dynldf_smag
[3634]	179	CALL ldf_dyn_smag( kstp ) ! eddy induced velocity coefficient
	180	# endif
[3]	181
[4369]	182	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
	183	! Ocean dynamics : hdiv, rot, ssh, e3, wn
	184	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
	185	CALL ssh_nxt ( kstp ) ! after ssh (includes call to div_cur)
[4387]	186	IF( lk_vvl ) CALL dom_vvl_sf_nxt( kstp ) ! after vertical scale factors
	187	CALL wzv ( kstp ) ! now cross-level velocity
[3634]	188
[4387]	189	IF( lk_dynspg_ts ) THEN
[4369]	190	! In case the time splitting case, update almost all momentum trends here:
	191	! Note that the computation of vertical velocity above, hence "after" sea level
	192	! is necessary to compute momentum advection for the rhs of barotropic loop:
[4990]	193	CALL eos ( tsn, rhd, rhop, fsdept_n(:,:,:) ) ! now in situ density for hpg computation
[5120]	194	IF( ln_zps .AND. .NOT. ln_isfcav) &
	195	& CALL zps_hde ( kstp, jpts, tsn, gtsu, gtsv, & ! Partial steps: before horizontal gradient
	196	& rhd, gru , grv ) ! of t, s, rd at the last ocean level
	197	IF( ln_zps .AND. ln_isfcav) &
	198	& CALL zps_hde_isf( kstp, jpts, tsn, gtsu, gtsv, & ! Partial steps for top cell (ISF)
	199	& rhd, gru , grv , aru , arv , gzu , gzv , ge3ru , ge3rv , &
	200	& gtui, gtvi, grui, grvi, arui, arvi, gzui, gzvi, ge3rui, ge3rvi ) ! of t, s, rd at the last ocean level
[4369]	201
	202	ua(:,:,:) = 0.e0 ! set dynamics trends to zero
	203	va(:,:,:) = 0.e0
[6204]	204	IF( lk_asminc .AND. ln_asmiau .AND. &
[4369]	205	& ln_dyninc ) CALL dyn_asm_inc ( kstp ) ! apply dynamics assimilation increment
	206	IF( ln_neptsimp ) CALL dyn_nept_cor ( kstp ) ! subtract Neptune velocities (simplified)
	207	IF( lk_bdy ) CALL bdy_dyn3d_dmp( kstp ) ! bdy damping trends
	208	CALL dyn_adv ( kstp ) ! advection (vector or flux form)
	209	CALL dyn_vor ( kstp ) ! vorticity term including Coriolis
	210	CALL dyn_ldf ( kstp ) ! lateral mixing
	211	IF( ln_neptsimp ) CALL dyn_nept_cor ( kstp ) ! add Neptune velocities (simplified)
	212	#if defined key_agrif
	213	IF(.NOT. Agrif_Root()) CALL Agrif_Sponge_dyn ! momentum sponge
	214	#endif
	215	CALL dyn_hpg( kstp ) ! horizontal gradient of Hydrostatic pressure
	216	CALL dyn_spg( kstp, indic ) ! surface pressure gradient
	217
	218	ua_sv(:,:,:) = ua(:,:,:) ! Save trends (barotropic trend has been fully updated at this stage)
	219	va_sv(:,:,:) = va(:,:,:)
	220
	221	CALL div_cur( kstp ) ! Horizontal divergence & Relative vorticity (2nd call in time-split case)
[4387]	222	IF( lk_vvl ) CALL dom_vvl_sf_nxt( kstp, kcall=2 ) ! after vertical scale factors (update depth average component)
	223	CALL wzv ( kstp ) ! now cross-level velocity
[4369]	224	ENDIF
	225
[1482]	226	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[3294]	227	! diagnostics and outputs (ua, va, tsa used as workspace)
[1482]	228	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[5147]	229	IF( lk_floats ) CALL flo_stp( kstp ) ! drifting Floats
	230	IF( lk_diahth ) CALL dia_hth( kstp ) ! Thermocline depth (20 degres isotherm depth)
[5407]	231	IF( .NOT. ln_cpl ) CALL dia_fwb( kstp ) ! Fresh water budget diagnostics
[5147]	232	IF( lk_diadct ) CALL dia_dct( kstp ) ! Transports
	233	IF( lk_diaar5 ) CALL dia_ar5( kstp ) ! ar5 diag
	234	IF( lk_diaharm ) CALL dia_harm( kstp ) ! Tidal harmonic analysis
	235	CALL dia_wri( kstp ) ! ocean model: outputs
[4152]	236	!
[5147]	237	IF( ln_crs ) CALL crs_fld( kstp ) ! ocean model: online field coarsening & output
[1482]	238
[923]	239	#if defined key_top
[3]	240	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
	241	! Passive Tracer Model
	242	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[1492]	243	CALL trc_stp( kstp ) ! time-stepping
[3]	244	#endif
	245
[4990]	246
[3]	247	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[1492]	248	! Active tracers (ua, va used as workspace)
[3]	249	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[2528]	250	tsa(:,:,:,:) = 0.e0 ! set tracer trends to zero
[3]	251
[6204]	252	IF( lk_asminc .AND. ln_asmiau .AND. &
[2528]	253	& ln_trainc ) CALL tra_asm_inc( kstp ) ! apply tracer assimilation increment
[467]	254	CALL tra_sbc ( kstp ) ! surface boundary condition
	255	IF( ln_traqsr ) CALL tra_qsr ( kstp ) ! penetrative solar radiation qsr
[2528]	256	IF( ln_trabbc ) CALL tra_bbc ( kstp ) ! bottom heat flux
	257	IF( lk_trabbl ) CALL tra_bbl ( kstp ) ! advective (and/or diffusive) bottom boundary layer scheme
[3294]	258	IF( ln_tradmp ) CALL tra_dmp ( kstp ) ! internal damping trends
[3651]	259	IF( lk_bdy ) CALL bdy_tra_dmp( kstp ) ! bdy damping trends
[467]	260	CALL tra_adv ( kstp ) ! horizontal & vertical advection
[2528]	261	IF( lk_zdfkpp ) CALL tra_kpp ( kstp ) ! KPP non-local tracer fluxes
[467]	262	CALL tra_ldf ( kstp ) ! lateral mixing
[5147]	263
	264	IF( ln_diaptr ) CALL dia_ptr ! Poleward adv/ldf TRansports diagnostics
	265
[392]	266	#if defined key_agrif
[782]	267	IF(.NOT. Agrif_Root()) CALL Agrif_Sponge_tra ! tracers sponge
[389]	268	#endif
[1111]	269	CALL tra_zdf ( kstp ) ! vertical mixing and after tracer fields
[1239]	270
[1492]	271	IF( ln_dynhpg_imp ) THEN ! semi-implicit hpg (time stepping then eos)
[2528]	272	IF( ln_zdfnpc ) CALL tra_npc( kstp ) ! update after fields by non-penetrative convection
	273	CALL tra_nxt( kstp ) ! tracer fields at next time step
[4292]	274	CALL eos ( tsa, rhd, rhop, fsdept_n(:,:,:) ) ! Time-filtered in situ density for hpg computation
[5120]	275	IF( ln_zps .AND. .NOT. ln_isfcav) &
	276	& CALL zps_hde ( kstp, jpts, tsa, gtsu, gtsv, & ! Partial steps: before horizontal gradient
	277	& rhd, gru , grv ) ! of t, s, rd at the last ocean level
	278	IF( ln_zps .AND. ln_isfcav) &
	279	& CALL zps_hde_isf( kstp, jpts, tsa, gtsu, gtsv, & ! Partial steps for top cell (ISF)
	280	& rhd, gru , grv , aru , arv , gzu , gzv , ge3ru , ge3rv , &
	281	& gtui, gtvi, grui, grvi, arui, arvi, gzui, gzvi, ge3rui, ge3rvi ) ! of t, s, rd at the last ocean level
[4215]	282	ELSE ! centered hpg (eos then time stepping)
[4292]	283	IF ( .NOT. lk_dynspg_ts ) THEN ! eos already called in time-split case
[4990]	284	CALL eos ( tsn, rhd, rhop, fsdept_n(:,:,:) ) ! now in situ density for hpg computation
[5120]	285	IF( ln_zps .AND. .NOT. ln_isfcav) &
	286	& CALL zps_hde ( kstp, jpts, tsn, gtsu, gtsv, & ! Partial steps: before horizontal gradient
	287	& rhd, gru , grv ) ! of t, s, rd at the last ocean level
	288	IF( ln_zps .AND. ln_isfcav) &
	289	& CALL zps_hde_isf( kstp, jpts, tsn, gtsu, gtsv, & ! Partial steps for top cell (ISF)
	290	& rhd, gru , grv , aru , arv , gzu , gzv , ge3ru , ge3rv , &
	291	& gtui, gtvi, grui, grvi, arui, arvi, gzui, gzvi, ge3rui, ge3rvi ) ! of t, s, rd at the last ocean level
[4292]	292	ENDIF
[2528]	293	IF( ln_zdfnpc ) CALL tra_npc( kstp ) ! update after fields by non-penetrative convection
	294	CALL tra_nxt( kstp ) ! tracer fields at next time step
[3764]	295	ENDIF
[1481]	296
[3]	297	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[3294]	298	! Dynamics (tsa used as workspace)
[3]	299	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[4292]	300	IF( lk_dynspg_ts ) THEN
	301	! revert to previously computed momentum tendencies
	302	! (not using ua, va as temporary arrays during tracers' update could avoid that)
	303	ua(:,:,:) = ua_sv(:,:,:)
	304	va(:,:,:) = va_sv(:,:,:)
	305	! Revert now divergence and rotational to previously computed ones
	306	!(needed because of the time swap in div_cur, at the beginning of each time step)
	307	hdivn(:,:,:) = hdivb(:,:,:)
	308	rotn(:,:,:) = rotb(:,:,:)
	309
	310	CALL dyn_bfr( kstp ) ! bottom friction
	311	CALL dyn_zdf( kstp ) ! vertical diffusion
	312	ELSE
[1492]	313	ua(:,:,:) = 0.e0 ! set dynamics trends to zero
[75]	314	va(:,:,:) = 0.e0
[3]	315
[6204]	316	IF( lk_asminc .AND. ln_asmiau .AND. &
[4292]	317	& ln_dyninc ) CALL dyn_asm_inc( kstp ) ! apply dynamics assimilation increment
	318	IF( ln_bkgwri ) CALL asm_bkg_wri( kstp ) ! output background fields
	319	IF( ln_neptsimp ) CALL dyn_nept_cor( kstp ) ! subtract Neptune velocities (simplified)
	320	IF( lk_bdy ) CALL bdy_dyn3d_dmp(kstp ) ! bdy damping trends
[1492]	321	CALL dyn_adv( kstp ) ! advection (vector or flux form)
	322	CALL dyn_vor( kstp ) ! vorticity term including Coriolis
	323	CALL dyn_ldf( kstp ) ! lateral mixing
[4292]	324	IF( ln_neptsimp ) CALL dyn_nept_cor( kstp ) ! add Neptune velocities (simplified)
[392]	325	#if defined key_agrif
[4292]	326	IF(.NOT. Agrif_Root()) CALL Agrif_Sponge_dyn ! momemtum sponge
[389]	327	#endif
[1492]	328	CALL dyn_hpg( kstp ) ! horizontal gradient of Hydrostatic pressure
[3764]	329	CALL dyn_bfr( kstp ) ! bottom friction
[1492]	330	CALL dyn_zdf( kstp ) ! vertical diffusion
	331	CALL dyn_spg( kstp, indic ) ! surface pressure gradient
[4292]	332	ENDIF
[1492]	333	CALL dyn_nxt( kstp ) ! lateral velocity at next time step
[3]	334
[4292]	335	CALL ssh_swp( kstp ) ! swap of sea surface height
	336	IF( lk_vvl ) CALL dom_vvl_sf_swp( kstp ) ! swap of vertical scale factors
[6204]	337	!
	338	IF( lrst_oce ) CALL rst_write( kstp ) ! write output ocean restart file
[593]	339
[6204]	340	#if defined key_agrif
	341	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
	342	! AGRIF
	343	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
	344	CALL Agrif_Integrate_ChildGrids( stp )
	345
	346	IF ( Agrif_NbStepint().EQ.0 ) THEN
	347	CALL Agrif_Update_Tra() ! Update active tracers
	348	CALL Agrif_Update_Dyn() ! Update momentum
	349	ENDIF
	350	#endif
[2528]	351	IF( ln_diahsb ) CALL dia_hsb( kstp ) ! - ML - global conservation diagnostics
	352	IF( lk_diaobs ) CALL dia_obs( kstp ) ! obs-minus-model (assimilation) diagnostics (call after dynamics update)
	353
[3]	354	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[6204]	355	! Control
[3]	356	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[1492]	357	CALL stp_ctl( kstp, indic )
	358	IF( indic < 0 ) THEN
	359	CALL ctl_stop( 'step: indic < 0' )
	360	CALL dia_wri_state( 'output.abort', kstp )
[1482]	361	ENDIF
[4147]	362	IF( kstp == nit000 ) THEN
[4624]	363	CALL iom_close( numror ) ! close input ocean restart file
	364	IF(lwm) CALL FLUSH ( numond ) ! flush output namelist oce
[5147]	365	IF( lwm.AND.numoni /= -1 ) CALL FLUSH ( numoni ) ! flush output namelist ice
[4147]	366	ENDIF
[3]	367
[508]	368	!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[75]	369	! Coupled mode
	370	!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
[5407]	371	IF( lk_oasis ) CALL sbc_cpl_snd( kstp ) ! coupled mode : field exchanges
[508]	372	!
[4153]	373	#if defined key_iomput
	374	IF( kstp == nitend .OR. indic < 0 ) THEN
[5407]	375	CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF
	376	IF( ln_crs ) CALL iom_context_finalize( trim(cxios_context)//"_crs" ) !
[4152]	377	ENDIF
[4153]	378	#endif
[3769]	379	!
[3294]	380	IF( nn_timing == 1 .AND. kstp == nit000 ) CALL timing_reset
[6204]	381	!
[1481]	382	!
[3]	383	END SUBROUTINE stp
	384
	385	!!======================================================================
	386	END MODULE step

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source: branches/UKMO/r6232_HZG_WAVE-coupling/NEMOGCM/NEMO/OPA_SRC/step.F90

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