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MODULE stpmlf
!!======================================================================
!! *** MODULE stpMLF ***
!! Time-stepping : manager of the ocean, tracer and ice time stepping
!! using Modified Leap Frog for OCE
!!======================================================================
!! History : OPA ! 1991-03 (G. Madec) Original code
!! - ! 1991-11 (G. Madec)
!! - ! 1992-06 (M. Imbard) add a first output record
!! - ! 1996-04 (G. Madec) introduction of dynspg
!! - ! 1996-04 (M.A. Foujols) introduction of passive tracer
!! 8.0 ! 1997-06 (G. Madec) new architecture of call
!! 8.2 ! 1997-06 (G. Madec, M. Imbard, G. Roullet) free surface
!! - ! 1999-02 (G. Madec, N. Grima) hpg implicit
!! - ! 2000-07 (J-M Molines, M. Imbard) Open Bondary Conditions
!! NEMO 1.0 ! 2002-06 (G. Madec) free form, suppress macro-tasking
!! - ! 2004-08 (C. Talandier) New trends organization
!! - ! 2005-01 (C. Ethe) Add the KPP closure scheme
!! - ! 2005-11 (G. Madec) Reorganisation of tra and dyn calls
!! - ! 2006-01 (L. Debreu, C. Mazauric) Agrif implementation
!! - ! 2006-07 (S. Masson) restart using iom
!! 3.2 ! 2009-02 (G. Madec, R. Benshila) reintroduicing z*-coordinate
!! - ! 2009-06 (S. Masson, G. Madec) TKE restart compatible with key_cpl
!! 3.3 ! 2010-05 (K. Mogensen, A. Weaver, M. Martin, D. Lea) Assimilation interface
!! - ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase + merge TRC-TRA
!! 3.4 ! 2011-04 (G. Madec, C. Ethe) Merge of dtatem and dtasal
!! 3.6 ! 2012-07 (J. Simeon, G. Madec. C. Ethe) Online coarsening of outputs
!! 3.6 ! 2014-04 (F. Roquet, G. Madec) New equations of state
!! 3.6 ! 2014-10 (E. Clementi, P. Oddo) Add Qiao vertical mixing in case of waves
!! 3.7 ! 2014-10 (G. Madec) LDF simplication
!! - ! 2014-12 (G. Madec) remove KPP scheme
!! - ! 2015-11 (J. Chanut) free surface simplification (remove filtered free surface)
!! 4.0 ! 2017-05 (G. Madec) introduction of the vertical physics manager (zdfphy)
!! 4.1 ! 2019-08 (A. Coward, D. Storkey) rewrite in preparation for new timestepping scheme
!! 4.x ! 2020-08 (S. Techene, G. Madec) quasi eulerian coordinate time stepping
!!----------------------------------------------------------------------
#if defined key_qco || defined key_linssh
!!----------------------------------------------------------------------
!! 'key_qco' Quasi-Eulerian vertical coordinate
!! OR
!! 'key_linssh Fixed in time vertical coordinate
!!----------------------------------------------------------------------
!!
!!----------------------------------------------------------------------
!! stp_MLF : NEMO modified Leap Frog time-stepping with qco or linssh
!!----------------------------------------------------------------------
USE step_oce ! time stepping definition modules
!
USE domqco ! quasi-eulerian coordinate
USE traatf_qco ! time filtering (tra_atf_qco routine)
USE dynatf_qco ! time filtering (dyn_atf_qco routine)
IMPLICIT NONE
PRIVATE
PUBLIC stp_MLF ! called by nemogcm.F90
! !** time level indices **!
INTEGER, PUBLIC :: Nbb, Nnn, Naa, Nrhs !: used by nemo_init
!! * Substitutions
# include "do_loop_substitute.h90"
# include "domzgr_substitute.h90"
!!----------------------------------------------------------------------
!! NEMO/OCE 4.0 , NEMO Consortium (2018)
!! $Id: step.F90 12377 2020-02-12 14:39:06Z acc $
!! Software governed by the CeCILL license (see ./LICENSE)
!!----------------------------------------------------------------------
CONTAINS
#if defined key_agrif
RECURSIVE SUBROUTINE stp_MLF( )
INTEGER :: kstp ! ocean time-step index
sparonuz
committed
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#else
SUBROUTINE stp_MLF( kstp )
INTEGER, INTENT(in) :: kstp ! ocean time-step index
#endif
!!----------------------------------------------------------------------
!! *** ROUTINE stp_MLF ***
!!
!! ** Purpose : - Time stepping of OCE (momentum and active tracer eqs.)
!! - Time stepping of SI3 (dynamic and thermodynamic eqs.)
!! - Time stepping of TRC (passive tracer eqs.)
!!
!! ** Method : -1- Update forcings and data
!! -2- Update ocean physics
!! -3- Compute the t and s trends
!! -4- Update t and s
!! -5- Compute the momentum trends
!! -6- Update the horizontal velocity
!! -7- Compute the diagnostics variables (rd,N2, hdiv,w)
!! -8- Outputs and diagnostics
!!----------------------------------------------------------------------
INTEGER :: ji, jj, jk, jtile ! dummy loop indice
REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: zgdept
!! ---------------------------------------------------------------------
#if defined key_agrif
IF( nstop > 0 ) RETURN ! avoid to go further if an error was detected during previous time step (child grid)
kstp = nit000 + Agrif_Nb_Step()
Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices
IF( lk_agrif_debug ) THEN
IF( Agrif_Root() .and. lwp) WRITE(*,*) '---'
IF(lwp) WRITE(*,*) 'Grid Number', Agrif_Fixed(),' time step ', kstp, 'int tstep', Agrif_NbStepint()
ENDIF
IF( kstp == nit000 + 1 ) lk_agrif_fstep = .FALSE.
# if defined key_xios
IF( Agrif_Nbstepint() == 0 ) CALL iom_swap( cxios_context )
# endif
#endif
!
IF( ln_timing ) CALL timing_start('stp_MLF')
!
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! model timestep
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!
IF( l_1st_euler ) THEN ! start or restart with Euler 1st time-step
rDt = rn_Dt
r1_Dt = 1._wp / rDt
ENDIF
!
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! update I/O and calendar
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!
IF( kstp == nit000 ) THEN ! initialize IOM context (must be done after nemo_init for AGRIF+XIOS+OASIS)
CALL iom_init( cxios_context, ld_closedef=.FALSE. ) ! for model grid (including possible AGRIF zoom)
IF( lk_diamlr ) CALL dia_mlr_iom_init ! with additional setup for multiple-linear-regression analysis
CALL iom_init_closedef
IF( ln_crs ) CALL iom_init( TRIM(cxios_context)//"_crs" ) ! for coarse grid
ENDIF
IF( kstp == nitrst .AND. lwxios ) THEN
CALL iom_swap( cw_ocerst_cxt )
CALL iom_init_closedef( cw_ocerst_cxt )
CALL iom_setkt( kstp - nit000 + 1, cw_ocerst_cxt )
#if defined key_top
CALL iom_swap( cw_toprst_cxt )
CALL iom_init_closedef( cw_toprst_cxt )
CALL iom_setkt( kstp - nit000 + 1, cw_toprst_cxt )
#endif
ENDIF
IF( kstp + nn_fsbc - 1 == nitrst .AND. lwxios ) THEN
#if defined key_si3
CALL iom_swap( cw_icerst_cxt )
CALL iom_init_closedef( cw_icerst_cxt )
CALL iom_setkt( kstp - nit000 + 1, cw_icerst_cxt )
#endif
IF( ln_abl ) THEN
CALL iom_swap( cw_ablrst_cxt )
CALL iom_init_closedef( cw_ablrst_cxt )
CALL iom_setkt( kstp - nit000 + 1, cw_ablrst_cxt )
ENDIF
ENDIF
IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init)
CALL iom_setkt( kstp - nit000 + 1, cxios_context ) ! tell IOM we are at time step kstp
IF( ln_crs ) CALL iom_setkt( kstp - nit000 + 1, TRIM(cxios_context)//"_crs" ) ! tell IOM we are at time step kstp
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Update external forcing (tides, open boundaries, ice shelf interaction and surface boundary condition (including sea-ice)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF( ln_tide ) CALL tide_update( kstp ) ! update tide potential
IF( ln_apr_dyn ) CALL sbc_apr ( kstp ) ! atmospheric pressure (NB: call before bdy_dta which needs ssh_ib)
IF( ln_bdy ) CALL bdy_dta ( kstp, Nnn ) ! update dynamic & tracer data at open boundaries
IF( ln_isf ) CALL isf_stp ( kstp, Nnn )
CALL sbc ( kstp, Nbb, Nnn ) ! Sea Boundary Condition (including sea-ice)
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Update stochastic parameters and random T/S fluctuations
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
IF( ln_sto_eos ) CALL sto_par( kstp ) ! Stochastic parameters
IF( ln_sto_eos ) CALL sto_pts( ts(:,:,:,:,Nnn) ) ! Random T/S fluctuations
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Ocean physics update
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
! THERMODYNAMICS
CALL eos_rab( ts(:,:,:,:,Nbb), rab_b, Nnn ) ! before local thermal/haline expension ratio at T-points
CALL eos_rab( ts(:,:,:,:,Nnn), rab_n, Nnn ) ! now local thermal/haline expension ratio at T-points
CALL bn2 ( ts(:,:,:,:,Nbb), rab_b, rn2b, Nnn ) ! before Brunt-Vaisala frequency
CALL bn2 ( ts(:,:,:,:,Nnn), rab_n, rn2, Nnn ) ! now Brunt-Vaisala frequency
! VERTICAL PHYSICS
IF( ln_tile ) CALL dom_tile_start ! [tiling] ZDF tiling loop
DO jtile = 1, nijtile
IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile )
CALL zdf_phy( kstp, Nbb, Nnn, Nrhs ) ! vertical physics update (top/bot drag, avt, avs, avm + MLD)
END DO
IF( ln_tile ) CALL dom_tile_stop
! LATERAL PHYSICS
!
IF( ln_zps .OR. l_ldfslp ) CALL eos( ts(:,:,:,:,Nbb), rhd, gdept_0(:,:,:) ) ! before in situ density
IF( ln_zps .AND. .NOT. ln_isfcav) &
& CALL zps_hde ( kstp, jpts, ts(:,:,:,:,Nbb), gtsu, gtsv, & ! Partial steps: before horizontal gradient
& rhd, gru , grv ) ! of t, s, rd at the last ocean level
IF( ln_zps .AND. ln_isfcav) &
& CALL zps_hde_isf( kstp, jpts, ts(:,:,:,:,Nbb), gtsu, gtsv, gtui, gtvi, & ! Partial steps for top cell (ISF)
& rhd, gru , grv , grui, grvi ) ! of t, s, rd at the first ocean level
IF( l_ldfslp ) THEN ! slope of lateral mixing
IF( ln_traldf_triad ) THEN
CALL ldf_slp_triad( kstp, Nbb, Nnn ) ! before slope for triad operator
ELSE
CALL ldf_slp ( kstp, rhd, rn2b, Nbb, Nnn ) ! before slope for standard operator
ENDIF
ENDIF
! ! eddy diffusivity coeff.
IF( l_ldftra_time .OR. l_ldfeiv_time ) CALL ldf_tra( kstp, Nbb, Nnn ) ! and/or eiv coeff.
IF( l_ldfdyn_time ) CALL ldf_dyn( kstp, Nbb ) ! eddy viscosity coeff.
! BBL coefficients
!
IF( ln_trabbl ) CALL bbl( kstp, nit000, Nbb, Nnn ) ! BBL diffusion coefficients and transports
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!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Ocean dynamics : hdiv, ssh, e3, u, v, w
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
CALL ssh_nxt ( kstp, Nbb, Nnn, ssh, Naa ) ! after ssh (includes call to div_hor)
IF( .NOT.lk_linssh ) THEN
CALL dom_qco_r3c( ssh(:,:,Naa), r3t(:,:,Naa), r3u(:,:,Naa), r3v(:,:,Naa) ) ! "after" ssh/h_0 ratio at t,u,v pts
IF( ln_dynspg_exp ) &
& CALL dom_qco_r3c( ssh(:,:,Nnn), r3t(:,:,Nnn), r3u(:,:,Nnn), r3v(:,:,Nnn), r3f(:,:) ) ! spg_exp : needed only for "now" ssh/h_0 ratio at f point
ENDIF
CALL wzv ( kstp, Nbb, Nnn, Naa, ww ) ! Nnn cross-level velocity
IF( ln_zad_Aimp ) CALL wAimp ( kstp, Nnn ) ! Adaptive-implicit vertical advection partitioning
ALLOCATE( zgdept(jpi,jpj,jpk) )
DO jk = 1, jpk
zgdept(:,:,jk) = gdept(:,:,jk,Nnn)
END DO
CALL eos ( ts(:,:,:,:,Nnn), rhd, rhop, zgdept ) ! now in situ density for hpg computation
DEALLOCATE( zgdept )
uu(:,:,:,Nrhs) = 0._wp ! set dynamics trends to zero
vv(:,:,:,Nrhs) = 0._wp
IF( ln_dyndmp .AND. ln_c1d ) CALL dyn_dmp( kstp, Nbb, Nnn, uu(:,:,:,Nrhs), vv(:,:,:,Nrhs), Nrhs ) ! internal damping trends- momentum
IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (1)
DO jtile = 1, nijtile
IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile )
IF( lk_asminc .AND. ln_asmiau .AND. ln_dyninc ) &
& CALL dyn_asm_inc ( kstp, Nbb, Nnn, uu, vv, Nrhs ) ! apply dynamics assimilation increment
IF( ln_bkgwri ) CALL asm_bkg_wri( kstp, Nnn ) ! output background fields
IF( ln_bdy ) CALL bdy_dyn3d_dmp ( kstp, Nbb, uu, vv, Nrhs ) ! bdy damping trends
#if defined key_agrif
END DO
IF( ln_tile ) CALL dom_tile_stop
IF(.NOT. Agrif_Root()) &
& CALL Agrif_Sponge_dyn ! momentum sponge
IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (1, continued)
DO jtile = 1, nijtile
IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile )
#endif
CALL dyn_adv( kstp, Nbb, Nnn , uu, vv, Nrhs ) ! advection (VF or FF) ==> RHS
CALL dyn_vor( kstp, Nnn , uu, vv, Nrhs ) ! vorticity ==> RHS
CALL dyn_ldf( kstp, Nbb, Nnn , uu, vv, Nrhs ) ! lateral mixing
IF( ln_zdfosm ) CALL dyn_osm( kstp, Nnn , uu, vv, Nrhs ) ! OSMOSIS non-local velocity fluxes ==> RHS
CALL dyn_hpg( kstp, Nnn , uu, vv, Nrhs ) ! horizontal gradient of Hydrostatic pressure
END DO
IF( ln_tile ) CALL dom_tile_stop
CALL dyn_spg( kstp, Nbb, Nnn, Nrhs, uu, vv, ssh, uu_b, vv_b, Naa ) ! surface pressure gradient
IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (2)
DO jtile = 1, nijtile
IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile )
IF( ln_dynspg_ts ) THEN ! With split-explicit free surface, since now transports have been updated and ssh(:,:,Nrhs)
! as well as vertical scale factors and vertical velocity need to be updated
CALL div_hor ( kstp, Nbb, Nnn ) ! Horizontal divergence (2nd call in time-split case)
IF(.NOT.lk_linssh) CALL dom_qco_r3c( ssh(:,:,Naa), r3t(:,:,Naa), r3u(:,:,Naa), r3v(:,:,Naa), r3f(:,:) ) ! update ssh/h_0 ratio at t,u,v,f pts
ENDIF
CALL dyn_zdf ( kstp, Nbb, Nnn, Nrhs, uu, vv, Naa ) ! vertical diffusion
END DO
IF( ln_tile ) CALL dom_tile_stop
IF( ln_dynspg_ts ) THEN ! vertical scale factors and vertical velocity need to be updated
CALL wzv ( kstp, Nbb, Nnn, Naa, ww ) ! Nnn cross-level velocity
IF( ln_zad_Aimp ) CALL wAimp ( kstp, Nnn ) ! Adaptive-implicit vertical advection partitioning
ENDIF
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! cool skin
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF ( ln_diurnal ) CALL diurnal_layers( kstp )
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! diagnostics and outputs
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF( ln_floats ) CALL flo_stp ( kstp, Nbb, Nnn ) ! drifting Floats
IF( ln_diacfl ) CALL dia_cfl ( kstp, Nnn ) ! Courant number diagnostics
CALL dia_hth ( kstp, Nnn ) ! Thermocline depth (20 degres isotherm depth)
IF( ln_diadct ) CALL dia_dct ( kstp, Nnn ) ! Transports
CALL dia_ar5 ( kstp, Nnn ) ! ar5 diag
CALL dia_ptr ( kstp, Nnn ) ! Poleward adv/ldf TRansports diagnostics
CALL dia_wri ( kstp, Nnn ) ! ocean model: outputs
IF( ln_crs ) CALL crs_fld ( kstp, Nnn ) ! ocean model: online field coarsening & output
IF( lk_diadetide ) CALL dia_detide( kstp ) ! Weights computation for daily detiding of model diagnostics
IF( lk_diamlr ) CALL dia_mlr ! Update time used in multiple-linear-regression analysis
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Now ssh filtering
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
CALL ssh_atf ( kstp, Nbb, Nnn, Naa, ssh ) ! time filtering of "now" sea surface height
IF(.NOT.lk_linssh) CALL dom_qco_r3c( ssh(:,:,Nnn), r3t_f, r3u_f, r3v_f ) ! "now" ssh/h_0 ratio from filtrered ssh
#if defined key_top
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Passive Tracer Model
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
CALL trc_stp ( kstp, Nbb, Nnn, Nrhs, Naa ) ! time-stepping
#endif
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Active tracers
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
ts(:,:,:,:,Nrhs) = 0._wp ! set tracer trends to zero
IF( ln_tile ) CALL dom_tile_start ! [tiling] TRA tiling loop (1)
DO jtile = 1, nijtile
IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile )
IF( lk_asminc .AND. ln_asmiau .AND. &
& ln_trainc ) CALL tra_asm_inc( kstp, Nbb, Nnn, ts, Nrhs ) ! apply tracer assimilation increment
CALL tra_sbc ( kstp, Nnn, ts, Nrhs ) ! surface boundary condition
IF( ln_traqsr ) CALL tra_qsr ( kstp, Nnn, ts, Nrhs ) ! penetrative solar radiation qsr
IF( ln_isf ) CALL tra_isf ( kstp, Nnn, ts, Nrhs ) ! ice shelf heat flux
IF( ln_trabbc ) CALL tra_bbc ( kstp, Nnn, ts, Nrhs ) ! bottom heat flux
IF( ln_trabbl ) CALL tra_bbl ( kstp, Nbb, Nnn, ts, Nrhs ) ! advective (and/or diffusive) bottom boundary layer scheme
IF( ln_tradmp ) CALL tra_dmp ( kstp, Nbb, Nnn, ts, Nrhs ) ! internal damping trends
IF( ln_bdy ) CALL bdy_tra_dmp( kstp, Nbb, ts, Nrhs ) ! bdy damping trends
END DO
IF( ln_tile ) CALL dom_tile_stop
#if defined key_agrif
IF(.NOT. Agrif_Root() ) THEN
CALL Agrif_Sponge_tra ! tracers sponge
ENDIF
#endif
! TEMP: [tiling] Separate loop over tile domains (due to tra_adv workarounds for tiling)
IF( ln_tile ) CALL dom_tile_start ! [tiling] TRA tiling loop (2)
DO jtile = 1, nijtile
IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile )
CALL tra_adv ( kstp, Nbb, Nnn, ts, Nrhs ) ! hor. + vert. advection ==> RHS
IF( ln_zdfmfc ) CALL tra_mfc ( kstp, Nbb, ts, Nrhs ) ! Mass Flux Convection
IF( ln_zdfosm ) THEN
CALL tra_osm ( kstp, Nnn, ts, Nrhs ) ! OSMOSIS non-local tracer fluxes ==> RHS
IF( lrst_oce ) CALL osm_rst ( kstp, Nnn, 'WRITE' ) ! write OSMOSIS outputs + ww (so must do here) to restarts
ENDIF
CALL tra_ldf ( kstp, Nbb, Nnn, ts, Nrhs ) ! lateral mixing
CALL tra_zdf ( kstp, Nbb, Nnn, Nrhs, ts, Naa ) ! vertical mixing and after tracer fields
IF( ln_zdfnpc ) CALL tra_npc ( kstp, Nnn, Nrhs, ts, Naa ) ! update after fields by non-penetrative convection
END DO
IF( ln_tile ) CALL dom_tile_stop
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Set boundary conditions, time filter and swap time levels
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!!jc1: For agrif, it would be much better to finalize tracers/momentum here (e.g. bdy conditions) and move the swap
!! (and time filtering) after Agrif update. Then restart would be done after and would contain updated fields.
!! If so:
!! (i) no need to call agrif update at initialization time
!! (ii) no need to update "before" fields
!!
!! Apart from creating new tra_swp/dyn_swp routines, this however:
!! (i) makes boundary conditions at initialization time computed from updated fields which is not the case between
!! two restarts => restartability issue. One can circumvent this, maybe, by assuming "interface separation",
!! e.g. a shift of the feedback interface inside child domain.
!! (ii) requires that all restart outputs of updated variables by agrif (e.g. passive tracers/tke/barotropic arrays) are done at the same
!! place.
!!
IF( ln_dynspg_ts ) CALL mlf_baro_corr ( Nnn, Naa, uu, vv ) ! barotrope adjustment
CALL finalize_lbc ( kstp, Nbb , Naa, uu, vv, ts ) ! boundary conditions
CALL tra_atf_qco ( kstp, Nbb, Nnn, Naa , ts ) ! time filtering of "now" tracer arrays
CALL dyn_atf_qco ( kstp, Nbb, Nnn, Naa, uu, vv ) ! time filtering of "now" velocities
IF(.NOT.lk_linssh) THEN
r3t(:,:,Nnn) = r3t_f(:,:) ! update now ssh/h_0 with time filtered values
r3u(:,:,Nnn) = r3u_f(:,:)
r3v(:,:,Nnn) = r3v_f(:,:)
ENDIF
!
! Swap time levels
Nrhs = Nbb
Nbb = Nnn
Nnn = Naa
Naa = Nrhs
!
!
IF( ln_diahsb ) CALL dia_hsb ( kstp, Nbb, Nnn ) ! - ML - global conservation diagnostics
!!gm : This does not only concern the dynamics ==>>> add a new title
!!gm2: why ouput restart before AGRIF update?
!!
!!jc: That would be better, but see comment above
!!
IF( lrst_oce ) CALL rst_write ( kstp, Nbb, Nnn ) ! write output ocean restart file
IF( ln_sto_eos ) CALL sto_rst_write( kstp ) ! write restart file for stochastic parameters
#if defined key_agrif
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! AGRIF recursive integration
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices
CALL Agrif_Integrate_ChildGrids( stp_MLF ) ! allows to finish all the Child Grids before updating
#endif
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Control
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
CALL stp_ctl ( kstp, Nnn )
#if defined key_agrif
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! AGRIF update
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF( Agrif_NbStepint() == 0 .AND. nstop == 0 ) &
& CALL Agrif_update_all( ) ! Update all components
#endif
IF( ln_diaobs .AND. nstop == 0 ) &
& CALL dia_obs( kstp, Nnn ) ! obs-minus-model (assimilation) diags (after dynamics update)
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! File manipulation at the end of the first time step
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF( kstp == nit000 ) THEN ! 1st time step only
CALL iom_close( numror ) ! close input ocean restart file
IF( lrxios ) CALL iom_context_finalize( cr_ocerst_cxt )
IF(lwm) CALL FLUSH ( numond ) ! flush output namelist oce
IF(lwm .AND. numoni /= -1 ) CALL FLUSH ( numoni ) ! flush output namelist ice (if exist)
ENDIF
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Coupled mode
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF( lk_oasis .AND. nstop == 0 ) CALL sbc_cpl_snd( kstp, Nbb, Nnn ) ! coupled mode : field exchanges
!
#if defined key_xios
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Finalize contextes if end of simulation or error detected
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IF( kstp == nitend .OR. nstop > 0 ) THEN
CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF
IF( ln_crs ) CALL iom_context_finalize( trim(cxios_context)//"_crs" ) !
ENDIF
#endif
!
IF( l_1st_euler ) THEN ! recover Leap-frog timestep
rDt = 2._wp * rn_Dt
r1_Dt = 1._wp / rDt
l_1st_euler = .FALSE.
ENDIF
!
IF( ln_timing ) CALL timing_stop('stp_MLF')
!
END SUBROUTINE stp_MLF
SUBROUTINE mlf_baro_corr( Kmm, Kaa, puu, pvv )
!!----------------------------------------------------------------------
!! *** ROUTINE mlf_baro_corr ***
!!
!! ** Purpose : Finalize after horizontal velocity.
!!
!! ** Method : * Ensure after velocities transport matches time splitting
!! estimate (ln_dynspg_ts=T)
!!
!! ** Action : puu(Kmm),pvv(Kmm) updated now horizontal velocity (ln_bt_fw=F)
!! puu(Kaa),pvv(Kaa) after horizontal velocity
!!----------------------------------------------------------------------
USE dynspg_ts, ONLY : un_adv, vn_adv ! updated Kmm barotropic transport
!!
INTEGER , INTENT(in ) :: Kmm, Kaa ! before and after time level indices
sparonuz
committed
REAL(dp), DIMENSION(jpi,jpj,jpk,jpt), INTENT(inout) :: puu, pvv ! velocities
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!
INTEGER :: ji,jj, jk ! dummy loop indices
REAL(wp), DIMENSION(jpi,jpj) :: zue, zve
!!----------------------------------------------------------------------
! Ensure below that barotropic velocities match time splitting estimate
! Compute actual transport and replace it with ts estimate at "after" time step
DO_2D( 0, 0, 0, 0 )
zue(ji,jj) = e3u(ji,jj,1,Kaa) * puu(ji,jj,1,Kaa) * umask(ji,jj,1)
zve(ji,jj) = e3v(ji,jj,1,Kaa) * pvv(ji,jj,1,Kaa) * vmask(ji,jj,1)
END_2D
DO jk = 2, jpkm1
DO_2D( 0, 0, 0, 0 )
zue(ji,jj) = zue(ji,jj) + e3u(ji,jj,jk,Kaa) * puu(ji,jj,jk,Kaa) * umask(ji,jj,jk)
zve(ji,jj) = zve(ji,jj) + e3v(ji,jj,jk,Kaa) * pvv(ji,jj,jk,Kaa) * vmask(ji,jj,jk)
END_2D
END DO
DO jk = 1, jpkm1
DO_2D( 0, 0, 0, 0 )
puu(ji,jj,jk,Kaa) = ( puu(ji,jj,jk,Kaa) - zue(ji,jj) * r1_hu(ji,jj,Kaa) + uu_b(ji,jj,Kaa) ) * umask(ji,jj,jk)
pvv(ji,jj,jk,Kaa) = ( pvv(ji,jj,jk,Kaa) - zve(ji,jj) * r1_hv(ji,jj,Kaa) + vv_b(ji,jj,Kaa) ) * vmask(ji,jj,jk)
END_2D
END DO
!
IF( .NOT.ln_bt_fw ) THEN
! Remove advective velocity from "now velocities"
! prior to asselin filtering
! In the forward case, this is done below after asselin filtering
! so that asselin contribution is removed at the same time
DO jk = 1, jpkm1
puu(:,:,jk,Kmm) = ( puu(:,:,jk,Kmm) - un_adv(:,:)*r1_hu(:,:,Kmm) + uu_b(:,:,Kmm) )*umask(:,:,jk)
pvv(:,:,jk,Kmm) = ( pvv(:,:,jk,Kmm) - vn_adv(:,:)*r1_hv(:,:,Kmm) + vv_b(:,:,Kmm) )*vmask(:,:,jk)
END DO
ENDIF
!
END SUBROUTINE mlf_baro_corr
SUBROUTINE finalize_lbc( kt, Kbb, Kaa, puu, pvv, pts )
!!----------------------------------------------------------------------
!! *** ROUTINE finalize_lbc ***
!!
!! ** Purpose : Apply the boundary condition on the after velocity
!!
!! ** Method : * Apply lateral boundary conditions on after velocity
!! at the local domain boundaries through lbc_lnk call,
!! at the one-way open boundaries (ln_bdy=T),
!! at the AGRIF zoom boundaries (lk_agrif=T)
!!
!! ** Action : puu(Kaa),pvv(Kaa) after horizontal velocity and tracers
!!----------------------------------------------------------------------
#if defined key_agrif
USE agrif_oce_interp
#endif
USE bdydyn ! ocean open boundary conditions (define bdy_dyn)
!!
INTEGER , INTENT(in ) :: kt ! ocean time-step index
INTEGER , INTENT(in ) :: Kbb, Kaa ! before and after time level indices
sparonuz
committed
REAL(dp), DIMENSION(jpi,jpj,jpk,jpt) , INTENT(inout) :: puu, pvv ! velocities to be time filtered
REAL(dp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers
!!----------------------------------------------------------------------
!
! Update after tracer and velocity on domain lateral boundaries
!
# if defined key_agrif
CALL Agrif_tra !* AGRIF zoom boundaries
CALL Agrif_dyn( kt )
# endif
! ! local domain boundaries (T-point, unchanged sign)
sparonuz
committed
CALL lbc_lnk( 'finalize_lbc', puu(:,:,:, Kaa), 'U', -1._dp, pvv(:,:,: ,Kaa), 'V', -1._dp &
& , pts(:,:,:,jp_tem,Kaa), 'T', 1._dp, pts(:,:,:,jp_sal,Kaa), 'T', 1._dp )
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!
! lbc_lnk needed for zdf_sh2 when using nn_hls = 2, moved here to allow tiling in zdf_phy
IF( nn_hls == 2 .AND. l_zdfsh2 ) CALL lbc_lnk( 'stp', avm_k, 'W', 1.0_wp )
! dom_qco_r3c defines over [nn_hls, nn_hls-1, nn_hls, nn_hls-1]
IF( nn_hls == 2 .AND. .NOT. lk_linssh ) THEN
CALL lbc_lnk( 'finalize_lbc', r3u(:,:,Kaa), 'U', 1._wp, r3v(:,:,Kaa), 'V', 1._wp, &
& r3u_f(:,:), 'U', 1._wp, r3v_f(:,:), 'V', 1._wp )
ENDIF
! !* BDY open boundaries
IF( ln_bdy ) THEN
CALL bdy_tra( kt, Kbb, pts, Kaa )
IF( ln_dynspg_exp ) CALL bdy_dyn( kt, Kbb, puu, pvv, Kaa )
IF( ln_dynspg_ts ) CALL bdy_dyn( kt, Kbb, puu, pvv, Kaa, dyn3d_only=.true. )
ENDIF
!
END SUBROUTINE finalize_lbc
#else
!!----------------------------------------------------------------------
!! default option EMPTY MODULE qco not activated
!!----------------------------------------------------------------------
#endif
!!======================================================================
END MODULE stpmlf