MODULE dynadv !!============================================================================== !! *** MODULE dynadv *** !! Ocean active tracers: advection scheme control !!============================================================================== !! History : 1.0 ! 2006-11 (G. Madec) Original code !! 3.3 ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase !! 3.6 ! 2015-05 (N. Ducousso, G. Madec) add Hollingsworth scheme as an option !!---------------------------------------------------------------------- !!---------------------------------------------------------------------- !! dyn_adv : compute the momentum advection trend !! dyn_adv_init : control the different options of advection scheme !!---------------------------------------------------------------------- USE dom_oce ! ocean space and time domain USE dynadv_cen2 ! centred flux form advection (dyn_adv_cen2 routine) USE dynadv_ubs ! UBS flux form advection (dyn_adv_ubs routine) USE dynkeg ! kinetic energy gradient (dyn_keg routine) USE dynzad ! vertical advection (dyn_zad routine) ! USE in_out_manager ! I/O manager USE lib_mpp ! MPP library USE timing ! Timing IMPLICIT NONE PRIVATE PUBLIC dyn_adv ! routine called by step module PUBLIC dyn_adv_init ! routine called by opa module ! !* namdyn_adv namelist * LOGICAL, PUBLIC :: ln_dynadv_vec !: vector form flag INTEGER, PUBLIC :: nn_dynkeg !: scheme of kinetic energy gradient: =0 C2 ; =1 Hollingsworth LOGICAL, PUBLIC :: ln_dynadv_cen2 !: flux form - 2nd order centered scheme flag LOGICAL, PUBLIC :: ln_dynadv_ubs !: flux form - 3rd order UBS scheme flag LOGICAL, PUBLIC :: ln_dynzad_zts !: vertical advection with sub-timestepping (requires vector form) INTEGER :: nadv ! choice of the formulation and scheme for the advection !! * Substitutions # include "domzgr_substitute.h90" # include "vectopt_loop_substitute.h90" !!---------------------------------------------------------------------- !! NEMO/OPA 3.6 , NEMO Consortium (2015) !! $Id: dynadv.F90 4990 2014-12-15 16:42:49Z timgraham $ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE dyn_adv( kt ) !!--------------------------------------------------------------------- !! *** ROUTINE dyn_adv *** !! !! ** Purpose : compute the ocean momentum advection trend. !! !! ** Method : - Update (ua,va) with the advection term following nadv !! NB: in flux form advection (ln_dynadv_cen2 or ln_dynadv_ubs=T) !! a metric term is add to the coriolis term while in vector form !! it is the relative vorticity which is added to coriolis term !! (see dynvor module). !!---------------------------------------------------------------------- INTEGER, INTENT( in ) :: kt ! ocean time-step index !!---------------------------------------------------------------------- ! IF( nn_timing == 1 ) CALL timing_start('dyn_adv') ! SELECT CASE ( nadv ) ! compute advection trend and add it to general trend CASE ( 0 ) CALL dyn_keg ( kt, nn_dynkeg ) ! vector form : horizontal gradient of kinetic energy CALL dyn_zad ( kt ) ! vector form : vertical advection CASE ( 1 ) CALL dyn_keg ( kt, nn_dynkeg ) ! vector form : horizontal gradient of kinetic energy CALL dyn_zad_zts ( kt ) ! vector form : vertical advection with sub-timestepping CASE ( 2 ) CALL dyn_adv_cen2( kt ) ! 2nd order centered scheme CASE ( 3 ) CALL dyn_adv_ubs ( kt ) ! 3rd order UBS scheme ! CASE (-1 ) ! esopa: test all possibility with control print CALL dyn_keg ( kt, nn_dynkeg ) CALL dyn_zad ( kt ) CALL dyn_adv_cen2( kt ) CALL dyn_adv_ubs ( kt ) END SELECT ! IF( nn_timing == 1 ) CALL timing_stop('dyn_adv') ! END SUBROUTINE dyn_adv SUBROUTINE dyn_adv_init !!--------------------------------------------------------------------- !! *** ROUTINE dyn_adv_init *** !! !! ** Purpose : Control the consistency between namelist options for !! momentum advection formulation & scheme and set nadv !!---------------------------------------------------------------------- INTEGER :: ioptio, ios ! Local integer ! NAMELIST/namdyn_adv/ ln_dynadv_vec, nn_dynkeg, ln_dynadv_cen2 , ln_dynadv_ubs, ln_dynzad_zts !!---------------------------------------------------------------------- ! REWIND( numnam_ref ) ! Namelist namdyn_adv in reference namelist : Momentum advection scheme READ ( numnam_ref, namdyn_adv, IOSTAT = ios, ERR = 901) 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_adv in reference namelist', lwp ) REWIND( numnam_cfg ) ! Namelist namdyn_adv in configuration namelist : Momentum advection scheme READ ( numnam_cfg, namdyn_adv, IOSTAT = ios, ERR = 902 ) 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_adv in configuration namelist', lwp ) IF(lwm) WRITE ( numond, namdyn_adv ) IF(lwp) THEN ! Namelist print WRITE(numout,*) WRITE(numout,*) 'dyn_adv_init : choice/control of the momentum advection scheme' WRITE(numout,*) '~~~~~~~~~~~' WRITE(numout,*) ' Namelist namdyn_adv : chose a advection formulation & scheme for momentum' WRITE(numout,*) ' Vector/flux form (T/F) ln_dynadv_vec = ', ln_dynadv_vec WRITE(numout,*) ' = 0 standard scheme ; =1 Hollingsworth scheme nn_dynkeg = ', nn_dynkeg WRITE(numout,*) ' 2nd order centred advection scheme ln_dynadv_cen2 = ', ln_dynadv_cen2 WRITE(numout,*) ' 3rd order UBS advection scheme ln_dynadv_ubs = ', ln_dynadv_ubs WRITE(numout,*) ' Sub timestepping of vertical advection ln_dynzad_zts = ', ln_dynzad_zts ENDIF ioptio = 0 ! Parameter control IF( ln_dynadv_vec ) ioptio = ioptio + 1 IF( ln_dynadv_cen2 ) ioptio = ioptio + 1 IF( ln_dynadv_ubs ) ioptio = ioptio + 1 IF( lk_esopa ) ioptio = 1 IF( ioptio /= 1 ) CALL ctl_stop( 'Choose ONE advection scheme in namelist namdyn_adv' ) IF( ln_dynzad_zts .AND. .NOT. ln_dynadv_vec ) & CALL ctl_stop( 'Sub timestepping of vertical advection requires vector form; set ln_dynadv_vec = .TRUE.' ) IF( nn_dynkeg /= nkeg_C2 .AND. nn_dynkeg /= nkeg_HW ) & CALL ctl_stop( 'KEG scheme wrong value of nn_dynkeg' ) ! ! Set nadv IF( ln_dynadv_vec ) nadv = 0 IF( ln_dynzad_zts ) nadv = 1 IF( ln_dynadv_cen2 ) nadv = 2 IF( ln_dynadv_ubs ) nadv = 3 IF( lk_esopa ) nadv = -1 IF(lwp) THEN ! Print the choice WRITE(numout,*) IF( nadv == 0 ) WRITE(numout,*) ' vector form : keg + zad + vor is used' IF( nadv == 1 ) WRITE(numout,*) ' vector form : keg + zad_zts + vor is used' IF( nadv == 0 .OR. nadv == 1 ) THEN IF( nn_dynkeg == nkeg_C2 ) WRITE(numout,*) 'with Centered standard keg scheme' IF( nn_dynkeg == nkeg_HW ) WRITE(numout,*) 'with Hollingsworth keg scheme' ENDIF IF( nadv == 2 ) WRITE(numout,*) ' flux form : 2nd order scheme is used' IF( nadv == 3 ) WRITE(numout,*) ' flux form : UBS scheme is used' IF( nadv == -1 ) WRITE(numout,*) ' esopa test: use all advection formulation' ENDIF ! END SUBROUTINE dyn_adv_init !!====================================================================== END MODULE dynadv