!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !! NEMO/TOP1 : - tracer run information (namtrc_run) !! - tracer definition (namtrc ) !! - tracer data initialisation (namtrc_dta) !! - tracer advection (namtrc_adv) !! - tracer lateral diffusion (namtrc_ldf) !! - tracer vertical physics (namtrc_zdf) !! - tracer newtonian damping (namtrc_dmp) !! - dynamical tracer trends (namtrc_trd) !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !----------------------------------------------------------------------- &namtrc_run ! run information !----------------------------------------------------------------------- jptra = 3 ! Total number of tracers nn_dttrc = 1 ! time step frequency for passive sn_tracers ln_top_euler = .false. ! use Euler time-stepping for TOP ln_rsttr = .false. ! start from a restart file (T) or not (F) nn_rsttr = 0 ! restart control = 0 initial time step is not compared to the restart file value ! = 1 do not use the value in the restart file ! = 2 calendar parameters read in the restart file cn_trcrst_in = "restart_trc" ! suffix of pass. sn_tracer restart name (input) cn_trcrst_indir = "." ! directory from which to read input passive tracer restarts cn_trcrst_out = "restart_trc" ! suffix of pass. sn_tracer restart name (output) cn_trcrst_outdir = "." ! directory to which to write output passive tracer restarts / !----------------------------------------------------------------------- &namtrc ! tracers definition !----------------------------------------------------------------------- ln_age = .true. ln_cfc11 = .true. ln_cfc12 = .false. ln_c14 = .true. ln_trcdta = .false. ! Initialisation from data input file (T) or not (F) ln_trcdmp = .false. ! add a damping termn (T) or not (F) ln_trcdmp_clo = .false. ! damping term (T) or not (F) on closed seas ! ! ! name ! title of the field ! units ! initial data from file or not ! sn_tracer(1) = 'Age ' , 'Sea water age since surface contact ', 'yr' , .false. sn_tracer(2) = 'CFC11 ' , 'CFC11 Concentration ', 'umolC/L', .false. sn_tracer(3) = 'RC14 ' , 'Radiocarbon ratio ', '-' , .false. / !----------------------------------------------------------------------- &namtrc_dta ! Initialisation from data input file !----------------------------------------------------------------------- cn_dir = './' ! root directory for the location of the data files / !----------------------------------------------------------------------- &namtrc_adv ! advection scheme for passive tracer !----------------------------------------------------------------------- ln_trcadv_cen = .false. ! 2nd order centered scheme nn_cen_h = 4 ! =2/4, horizontal 2nd order CEN / 4th order CEN nn_cen_v = 4 ! =2/4, vertical 2nd order CEN / 4th order COMPACT ln_trcadv_fct = .false. ! FCT scheme nn_fct_h = 2 ! =2/4, horizontal 2nd / 4th order nn_fct_v = 2 ! =2/4, vertical 2nd / COMPACT 4th order nn_fct_zts = 0 ! >=1, 2nd order FCT scheme with vertical sub-timestepping ! ! (number of sub-timestep = nn_fct_zts) ln_trcadv_mus = .false. ! MUSCL scheme ln_mus_ups = .false. ! use upstream scheme near river mouths ln_trcadv_ubs = .false. ! UBS scheme nn_ubs_v = 2 ! =2 , vertical 2nd order FCT ln_trcadv_qck = .false. ! QUICKEST scheme / !----------------------------------------------------------------------- &namtrc_ldf ! lateral diffusion scheme for passive tracer !----------------------------------------------------------------------- ! ! Type of the operator: ln_trcldf_lap = .true. ! laplacian operator ln_trcldf_blp = .false. ! bilaplacian operator ! ! Direction of action: ln_trcldf_lev = .false. ! iso-level ln_trcldf_hor = .false. ! horizontal (geopotential) ln_trcldf_iso = .true. ! iso-neutral (standard operator) ln_trcldf_triad = .false. ! iso-neutral (triad operator) ! ! Coefficient rn_ahtrc_0 = 2000. ! lateral eddy diffusivity (lap. operator) [m2/s] rn_bhtrc_0 = 1.e+12 ! lateral eddy diffusivity (bilap. operator) [m4/s] ! rn_fact_lap = 1. ! enhanced zonal eddy diffusivity / !----------------------------------------------------------------------- &namtrc_zdf ! vertical physics !----------------------------------------------------------------------- ln_trczdf_exp = .false. ! split explicit (T) or implicit (F) time stepping nn_trczdf_exp = 3 ! number of sub-timestep for ln_trczdfexp=T / !----------------------------------------------------------------------- &namtrc_rad ! treatment of negative concentrations !----------------------------------------------------------------------- ln_trcrad = .true. ! artificially correct negative concentrations (T) or not (F) / !----------------------------------------------------------------------- &namtrc_dmp ! passive tracer newtonian damping !----------------------------------------------------------------------- nn_zdmp_tr = 1 ! vertical shape =0 damping throughout the water column ! =1 no damping in the mixing layer (kz criteria) ! =2 no damping in the mixed layer (rho crieria) cn_resto_tr = 'resto_tr.nc' ! create a damping.coeff NetCDF file (=1) or not (=0) / !----------------------------------------------------------------------- &namtrc_ice ! Representation of sea ice growth & melt effects !----------------------------------------------------------------------- nn_ice_tr = -1 ! tracer concentration in sea ice ! =-1 (no vvl: identical cc in ice and ocean / vvl: cc_ice = 0) ! = 0 (no vvl: cc_ice = zero / vvl: cc_ice = ) ! = 1 prescribed to a namelist value (implemented in pisces only) / !----------------------------------------------------------------------- &namtrc_trd ! diagnostics on tracer trends ('key_trdtrc') ! or mixed-layer trends ('key_trdmld_trc') !---------------------------------------------------------------------- nn_trd_trc = 5475 ! time step frequency and tracers trends nn_ctls_trc = 0 ! control surface type in mixed-layer trends (0,1 or n /seconds ; =86400. -> /day) ln_trdmld_trc_restart = .false. ! restart for ML diagnostics ln_trdmld_trc_instant = .true. ! flag to diagnose trends of instantantaneous or mean ML T/S ln_trdtrc( 1) = .true. ln_trdtrc( 2) = .true. ln_trdtrc(23) = .true. / !---------------------------------------------------------------------- &namtrc_bc ! data for boundary conditions !----------------------------------------------------------------------- cn_dir_sbc = './' ! root directory for the location of SURFACE data files cn_dir_cbc = './' ! root directory for the location of COASTAL data files cn_dir_obc = './' ! root directory for the location of OPEN data files / !---------------------------------------------------------------------- &namtrc_bdy ! Setup of tracer boundary conditions !----------------------------------------------------------------------- cn_trc_dflt = 'neumann' ! OBC applied by default to all tracers cn_trc = 'none' ! Boundary conditions used for tracers with data files (selected in namtrc) nn_trcdmp_bdy = 0 ! Use damping timescales defined in nambdy of namelist ! = 0 NO damping of tracers at open boudaries ! = 1 Only for tracers forced with external data ! = 2 Damping applied to all tracers /