MODULE traadv !!============================================================================== !! *** MODULE traadv *** !! Ocean active tracers: advection trend !!============================================================================== !! History : 2.0 ! 2005-11 (G. Madec) Original code !! 3.3 ! 2010-09 (C. Ethe, G. Madec) merge TRC-TRA + switch from velocity to transport !! 3.6 ! 2011-06 (G. Madec) Addition of Mixed Layer Eddy parameterisation !! 3.7 ! 2014-05 (G. Madec) Add 2nd/4th order cases for CEN and FCT schemes !! - ! 2014-12 (G. Madec) suppression of cross land advection option !! 3.6 ! 2015-06 (E. Clementi) Addition of Stokes drift in case of wave coupling !!---------------------------------------------------------------------- !!---------------------------------------------------------------------- !! tra_adv : compute ocean tracer advection trend !! tra_adv_init : control the different options of advection scheme !!---------------------------------------------------------------------- USE oce ! ocean dynamics and active tracers USE dom_oce ! ocean space and time domain USE domvvl ! variable vertical scale factors USE sbcwave ! wave module USE sbc_oce ! surface boundary condition: ocean USE traadv_cen ! centered scheme (tra_adv_cen routine) USE traadv_fct ! FCT scheme (tra_adv_fct routine) USE traadv_mus ! MUSCL scheme (tra_adv_mus routine) USE traadv_ubs ! UBS scheme (tra_adv_ubs routine) USE traadv_qck ! QUICKEST scheme (tra_adv_qck routine) USE tramle ! Mixed Layer Eddy transport (tra_mle_trp routine) USE ldftra ! Eddy Induced transport (ldf_eiv_trp routine) USE ldfslp ! Lateral diffusion: slopes of neutral surfaces USE trd_oce ! trends: ocean variables USE trdtra ! trends manager: tracers USE diaptr ! Poleward heat transport ! USE in_out_manager ! I/O manager USE iom ! I/O module USE prtctl ! Print control USE lib_mpp ! MPP library USE timing ! Timing IMPLICIT NONE PRIVATE PUBLIC tra_adv ! called by step.F90 PUBLIC tra_adv_init ! called by nemogcm.F90 ! !!* Namelist namtra_adv * LOGICAL :: ln_traadv_OFF ! no advection on T and S LOGICAL :: ln_traadv_cen ! centered scheme flag INTEGER :: nn_cen_h, nn_cen_v ! =2/4 : horizontal and vertical choices of the order of CEN scheme LOGICAL :: ln_traadv_fct ! FCT scheme flag INTEGER :: nn_fct_h, nn_fct_v ! =2/4 : horizontal and vertical choices of the order of FCT scheme LOGICAL :: ln_traadv_mus ! MUSCL scheme flag LOGICAL :: ln_mus_ups ! use upstream scheme in vivcinity of river mouths LOGICAL :: ln_traadv_ubs ! UBS scheme flag INTEGER :: nn_ubs_v ! =2/4 : vertical choice of the order of UBS scheme LOGICAL :: ln_traadv_qck ! QUICKEST scheme flag INTEGER :: nadv ! choice of the type of advection scheme ! ! associated indices: INTEGER, PARAMETER :: np_NO_adv = 0 ! no T-S advection INTEGER, PARAMETER :: np_CEN = 1 ! 2nd/4th order centered scheme INTEGER, PARAMETER :: np_FCT = 2 ! 2nd/4th order Flux Corrected Transport scheme INTEGER, PARAMETER :: np_MUS = 3 ! MUSCL scheme INTEGER, PARAMETER :: np_UBS = 4 ! 3rd order Upstream Biased Scheme INTEGER, PARAMETER :: np_QCK = 5 ! QUICK scheme !! * Substitutions # include "vectopt_loop_substitute.h90" !!---------------------------------------------------------------------- !! NEMO/OCE 4.0 , NEMO Consortium (2018) !! $Id$ !! Software governed by the CeCILL license (see ./LICENSE) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE tra_adv( kt ) !!---------------------------------------------------------------------- !! *** ROUTINE tra_adv *** !! !! ** Purpose : compute the ocean tracer advection trend. !! !! ** Method : - Update (ua,va) with the advection term following nadv !!---------------------------------------------------------------------- INTEGER, INTENT(in) :: kt ! ocean time-step index ! INTEGER :: jk ! dummy loop index REAL(wp), DIMENSION(jpi,jpj,jpk) :: zun, zvn, zwn ! 3D workspace REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: ztrdt, ztrds !!---------------------------------------------------------------------- ! IF( ln_timing ) CALL timing_start('tra_adv') ! ! ! set time step IF( neuler == 0 .AND. kt == nit000 ) THEN ; r2dt = rdt ! at nit000 (Euler) ELSEIF( kt <= nit000 + 1 ) THEN ; r2dt = 2._wp * rdt ! at nit000 or nit000+1 (Leapfrog) ENDIF ! ! !== effective transport ==! zun(:,:,jpk) = 0._wp zvn(:,:,jpk) = 0._wp zwn(:,:,jpk) = 0._wp IF( ln_wave .AND. ln_sdw ) THEN DO jk = 1, jpkm1 ! eulerian transport + Stokes Drift zun(:,:,jk) = e2u (:,:) * e3u_n(:,:,jk) * ( un(:,:,jk) + usd(:,:,jk) ) zvn(:,:,jk) = e1v (:,:) * e3v_n(:,:,jk) * ( vn(:,:,jk) + vsd(:,:,jk) ) zwn(:,:,jk) = e1e2t(:,:) * ( wn(:,:,jk) + wsd(:,:,jk) ) END DO ELSE DO jk = 1, jpkm1 zun(:,:,jk) = e2u (:,:) * e3u_n(:,:,jk) * un(:,:,jk) ! eulerian transport only zvn(:,:,jk) = e1v (:,:) * e3v_n(:,:,jk) * vn(:,:,jk) zwn(:,:,jk) = e1e2t(:,:) * wn(:,:,jk) END DO ENDIF ! IF( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN ! add z-tilde and/or vvl corrections zun(:,:,:) = zun(:,:,:) + un_td(:,:,:) zvn(:,:,:) = zvn(:,:,:) + vn_td(:,:,:) ENDIF ! zun(:,:,jpk) = 0._wp ! no transport trough the bottom zvn(:,:,jpk) = 0._wp zwn(:,:,jpk) = 0._wp ! IF( ln_ldfeiv .AND. .NOT. ln_traldf_triad ) & & CALL ldf_eiv_trp( kt, nit000, zun, zvn, zwn, 'TRA' ) ! add the eiv transport (if necessary) ! IF( ln_mle ) CALL tra_mle_trp( kt, nit000, zun, zvn, zwn, 'TRA' ) ! add the mle transport (if necessary) ! CALL iom_put( "uocetr_eff", zun ) ! output effective transport CALL iom_put( "vocetr_eff", zvn ) CALL iom_put( "wocetr_eff", zwn ) ! !!gm ??? IF( ln_diaptr ) CALL dia_ptr( zvn ) ! diagnose the effective MSF !!gm ??? ! IF( l_trdtra ) THEN !* Save ta and sa trends ALLOCATE( ztrdt(jpi,jpj,jpk), ztrds(jpi,jpj,jpk) ) ztrdt(:,:,:) = tsa(:,:,:,jp_tem) ztrds(:,:,:) = tsa(:,:,:,jp_sal) ENDIF ! SELECT CASE ( nadv ) !== compute advection trend and add it to general trend ==! ! CASE ( np_CEN ) ! Centered scheme : 2nd / 4th order CALL tra_adv_cen ( kt, nit000, 'TRA', zun, zvn, zwn , tsn, tsa, jpts, nn_cen_h, nn_cen_v ) CASE ( np_FCT ) ! FCT scheme : 2nd / 4th order CALL tra_adv_fct ( kt, nit000, 'TRA', r2dt, zun, zvn, zwn, tsb, tsn, tsa, jpts, nn_fct_h, nn_fct_v ) CASE ( np_MUS ) ! MUSCL CALL tra_adv_mus ( kt, nit000, 'TRA', r2dt, zun, zvn, zwn, tsb, tsa, jpts , ln_mus_ups ) CASE ( np_UBS ) ! UBS CALL tra_adv_ubs ( kt, nit000, 'TRA', r2dt, zun, zvn, zwn, tsb, tsn, tsa, jpts , nn_ubs_v ) CASE ( np_QCK ) ! QUICKEST CALL tra_adv_qck ( kt, nit000, 'TRA', r2dt, zun, zvn, zwn, tsb, tsn, tsa, jpts ) ! END SELECT ! IF( l_trdtra ) THEN ! save the advective trends for further diagnostics DO jk = 1, jpkm1 ztrdt(:,:,jk) = tsa(:,:,jk,jp_tem) - ztrdt(:,:,jk) ztrds(:,:,jk) = tsa(:,:,jk,jp_sal) - ztrds(:,:,jk) END DO CALL trd_tra( kt, 'TRA', jp_tem, jptra_totad, ztrdt ) CALL trd_tra( kt, 'TRA', jp_sal, jptra_totad, ztrds ) DEALLOCATE( ztrdt, ztrds ) ENDIF ! ! print mean trends (used for debugging) IF(ln_ctl) CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' adv - Ta: ', mask1=tmask, & & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) ! IF( ln_timing ) CALL timing_stop( 'tra_adv' ) ! END SUBROUTINE tra_adv SUBROUTINE tra_adv_init !!--------------------------------------------------------------------- !! *** ROUTINE tra_adv_init *** !! !! ** Purpose : Control the consistency between namelist options for !! tracer advection schemes and set nadv !!---------------------------------------------------------------------- INTEGER :: ioptio, ios ! Local integers ! NAMELIST/namtra_adv/ ln_traadv_OFF, & ! No advection & ln_traadv_cen , nn_cen_h, nn_cen_v, & ! CEN & ln_traadv_fct , nn_fct_h, nn_fct_v, & ! FCT & ln_traadv_mus , ln_mus_ups, & ! MUSCL & ln_traadv_ubs , nn_ubs_v, & ! UBS & ln_traadv_qck ! QCK !!---------------------------------------------------------------------- ! ! !== Namelist ==! REWIND( numnam_ref ) ! Namelist namtra_adv in reference namelist : Tracer advection scheme READ ( numnam_ref, namtra_adv, IOSTAT = ios, ERR = 901) 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtra_adv in reference namelist', lwp ) ! REWIND( numnam_cfg ) ! Namelist namtra_adv in configuration namelist : Tracer advection scheme READ ( numnam_cfg, namtra_adv, IOSTAT = ios, ERR = 902 ) 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namtra_adv in configuration namelist', lwp ) IF(lwm) WRITE( numond, namtra_adv ) ! IF(lwp) THEN ! Namelist print WRITE(numout,*) WRITE(numout,*) 'tra_adv_init : choice/control of the tracer advection scheme' WRITE(numout,*) '~~~~~~~~~~~~' WRITE(numout,*) ' Namelist namtra_adv : chose a advection scheme for tracers' WRITE(numout,*) ' No advection on T & S ln_traadv_OFF = ', ln_traadv_OFF WRITE(numout,*) ' centered scheme ln_traadv_cen = ', ln_traadv_cen WRITE(numout,*) ' horizontal 2nd/4th order nn_cen_h = ', nn_fct_h WRITE(numout,*) ' vertical 2nd/4th order nn_cen_v = ', nn_fct_v WRITE(numout,*) ' Flux Corrected Transport scheme ln_traadv_fct = ', ln_traadv_fct WRITE(numout,*) ' horizontal 2nd/4th order nn_fct_h = ', nn_fct_h WRITE(numout,*) ' vertical 2nd/4th order nn_fct_v = ', nn_fct_v WRITE(numout,*) ' MUSCL scheme ln_traadv_mus = ', ln_traadv_mus WRITE(numout,*) ' + upstream scheme near river mouths ln_mus_ups = ', ln_mus_ups WRITE(numout,*) ' UBS scheme ln_traadv_ubs = ', ln_traadv_ubs WRITE(numout,*) ' vertical 2nd/4th order nn_ubs_v = ', nn_ubs_v WRITE(numout,*) ' QUICKEST scheme ln_traadv_qck = ', ln_traadv_qck ENDIF ! ! !== Parameter control & set nadv ==! ioptio = 0 IF( ln_traadv_OFF ) THEN ; ioptio = ioptio + 1 ; nadv = np_NO_adv ; ENDIF IF( ln_traadv_cen ) THEN ; ioptio = ioptio + 1 ; nadv = np_CEN ; ENDIF IF( ln_traadv_fct ) THEN ; ioptio = ioptio + 1 ; nadv = np_FCT ; ENDIF IF( ln_traadv_mus ) THEN ; ioptio = ioptio + 1 ; nadv = np_MUS ; ENDIF IF( ln_traadv_ubs ) THEN ; ioptio = ioptio + 1 ; nadv = np_UBS ; ENDIF IF( ln_traadv_qck ) THEN ; ioptio = ioptio + 1 ; nadv = np_QCK ; ENDIF ! IF( ioptio /= 1 ) CALL ctl_stop( 'tra_adv_init: Choose ONE advection option in namelist namtra_adv' ) ! IF( ln_traadv_cen .AND. ( nn_cen_h /= 2 .AND. nn_cen_h /= 4 ) & ! Centered .AND. ( nn_cen_v /= 2 .AND. nn_cen_v /= 4 ) ) THEN CALL ctl_stop( 'tra_adv_init: CEN scheme, choose 2nd or 4th order' ) ENDIF IF( ln_traadv_fct .AND. ( nn_fct_h /= 2 .AND. nn_fct_h /= 4 ) & ! FCT .AND. ( nn_fct_v /= 2 .AND. nn_fct_v /= 4 ) ) THEN CALL ctl_stop( 'tra_adv_init: FCT scheme, choose 2nd or 4th order' ) ENDIF IF( ln_traadv_ubs .AND. ( nn_ubs_v /= 2 .AND. nn_ubs_v /= 4 ) ) THEN ! UBS CALL ctl_stop( 'tra_adv_init: UBS scheme, choose 2nd or 4th order' ) ENDIF IF( ln_traadv_ubs .AND. nn_ubs_v == 4 ) THEN CALL ctl_warn( 'tra_adv_init: UBS scheme, only 2nd FCT scheme available on the vertical. It will be used' ) ENDIF IF( ln_isfcav ) THEN ! ice-shelf cavities IF( ln_traadv_cen .AND. nn_cen_v == 4 .OR. & ! NO 4th order with ISF & ln_traadv_fct .AND. nn_fct_v == 4 ) CALL ctl_stop( 'tra_adv_init: 4th order COMPACT scheme not allowed with ISF' ) ENDIF ! ! !== Print the choice ==! IF(lwp) THEN WRITE(numout,*) SELECT CASE ( nadv ) CASE( np_NO_adv ) ; WRITE(numout,*) ' ==>>> NO T-S advection' CASE( np_CEN ) ; WRITE(numout,*) ' ==>>> CEN scheme is used. Horizontal order: ', nn_cen_h, & & ' Vertical order: ', nn_cen_v CASE( np_FCT ) ; WRITE(numout,*) ' ==>>> FCT scheme is used. Horizontal order: ', nn_fct_h, & & ' Vertical order: ', nn_fct_v CASE( np_MUS ) ; WRITE(numout,*) ' ==>>> MUSCL scheme is used' CASE( np_UBS ) ; WRITE(numout,*) ' ==>>> UBS scheme is used' CASE( np_QCK ) ; WRITE(numout,*) ' ==>>> QUICKEST scheme is used' END SELECT ENDIF ! CALL tra_mle_init !== initialisation of the Mixed Layer Eddy parametrisation (MLE) ==! ! END SUBROUTINE tra_adv_init !!====================================================================== END MODULE traadv