Note, this is not a namelist.input file. Find what interests you, and cut and paste them to your own namelist.input file. For more information on these namelist parameters, please see run/README.namelist or Chapter 5 of the User's Guide. ** More options for real in namelist record &domains: p_top_requested = 5000 interp_type = 2 extrap_type = 2 t_extrap_type = 2 lowest_lev_from_sfc = .false. use_levels_below_ground = .true. use_surface = .true. lagrange_order = 1 force_sfc_in_vinterp = 1 zap_close_levels = 500 sfcp_to_sfcp = .false. adjust_heights = .false. eta_levels = 1.000, 0.990, 0.978, 0.964, 0.946, 0.922, 0.894, 0.860, 0.817, 0.766, 0.707, 0.644, 0.576, 0.507, 0.444, 0.380, 0.324, 0.273, 0.228, 0.188, 0.152, 0.121, 0.093, 0.069, 0.048, 0.029, 0.014, 0.000, ** Using sst_update option (add these to namelist records &time_control and &physics respectively): &time_control auxinput4_inname = "wrflowinp_d" auxinput4_interval = 360, 360, 360, &physics sst_update = 1, ** Using DFI options (note this is a separate namelist record): &dfi_control dfi_opt = 3, dfi_nfilter = 7, dfi_cutoff_seconds = 3600, dfi_write_filtered_input = .true. dfi_write_dfi_history = .false. dfi_bckstop_year = 2000, dfi_bckstop_month = 01, dfi_bckstop_day = 24, dfi_bckstop_hour = 10, dfi_bckstop_minute = 00, dfi_bckstop_second = 00, dfi_fwdstop_year = 2000, dfi_fwdstop_month = 01, dfi_fwdstop_day = 24, dfi_fwdstop_hour = 13, dfi_fwdstop_minute = 00, dfi_fwdstop_second = 00, / ** Using gridded nudging option (note this is a separate namelist record): &fdda grid_fdda = 1, 1, 1, gfdda_inname = "wrffdda_d", gfdda_end_h = 24, 24, 24, gfdda_interval_m = 360, 360, 360, fgdt = 0, 0, 0, if_no_pbl_nudging_uv = 0, 0, 1, if_no_pbl_nudging_t = 0, 0, 1, if_no_pbl_nudging_q = 0, 0, 1, if_zfac_uv = 0, 0, 1, k_zfac_uv = 10, 10, 1, if_zfac_t = 0, 0, 1, k_zfac_t = 10, 10, 1, if_zfac_q = 0, 0, 1, k_zfac_q = 10, 10, 1, guv = 0.0003, 0.0003, 0.0003, gt = 0.0003, 0.0003, 0.0003, gq = 0.0003, 0.0003, 0.0003, if_ramping = 1, dtramp_min = 60.0, io_form_gfdda = 2, / ** Using observation nudging option (note &fdda is a separate namelist record): &time_control auxinput11_interval_s = 180 , 180 , 180 auxinput11_end_h = 6 , 6 , 6 &fdda obs_nudge_opt = 1,1,1, max_obs = 150000, fdda_start = 0., 0., 0., fdda_end = 720.,720.,720., obs_nudge_wind = 1,1,1, obs_coef_wind = 6.E-4,6.E-4,6.E-4, obs_nudge_temp = 1,1,1, obs_coef_temp = 6.E-4,6.E-4,6.E-4, obs_nudge_mois = 1,1,1, obs_coef_mois = 6.E-4,6.E-4,6.E-4, obs_rinxy = 240.,240.,180., obs_rinsig = 0.1, obs_twindo = 0.6666667,0.6666667,0.6666667, obs_npfi = 10, obs_ionf = 2, 2, 2, obs_idynin = 0, obs_dtramp = 40., obs_nobs_prt = 10, 10, 10, obs_ipf_errob = .true. obs_ipf_nudob = .true. obs_ipf_in4dob = .true / ** Using adaptive time step option (add these in namelist record &domains): use_adaptive_time_step = .true., step_to_output_time = .true., target_cfl = 1.2, 1.2, 1.2, max_step_increase_pct = 5, 51, 51, starting_time_step = -1, -1, -1, max_time_step = 360, 120, 40, min_time_step = 90, 30, 10, ** Using automatic vortex-following option (tropical storm tracking only; add these in namelist record &domains): vortex_interval = 15, 15, 15, max_vortex_speed = 40, 40, 40, corral_dist = 8, 15, 15, track_level = 50000, ** Using different flux formulation for tropical storm simulations (more effective when grid sizes are smaller than 2 km), and simple 1-D ocean mixed layer (add these in namelist record &physics): isftcflx = 1, omlcall = 1, oml_hml0 = 50, oml_gamma = 0.14 ** Miscellaneous physics options for namelist record &physics: Topographic shading (only effective when grid sizes are a few kilometers) slope_rad = 0, topo_shading = 0, shadlen = 25000, Setting threashold value for defining seaice if seaice is not in the input file: seaice_threshold = 271, Switching off latent heating from a microphysics scheme (must also set cu_physics = 0): no_mp_heating = 0, ** Using CAM long and short wave radiation schemes: cam_abs_freq_s = 21600 levsiz = 59 paerlev = 29 cam_abs_dim1 = 4 cam_abs_dim2 = 28 (cam_abs_dim2 should be the same as e_vert) ** Using implicit gravity-wave damping option (add these in namelist record &dynamics): damp_opt = 3, zdamp = 5000., 5000., 5000., dampcoef = 0.2, 0.2, 0.2 ** Using expanded boundary zone and exponential decay option (add or modify these in namelist record &bdy_control): spec_bdy_width = 10, spec_zone = 1, relax_zone = 9, specified = .true., .false.,.false., spec_exp = 0.33 For a tropical channel configuration, set the following: specified = .true., .false.,.false., periodic_x = .true., .false.,.false., ** using io quilting option to improve output efficiency for large domain runs (note that this is a separate namelist record): &namelist_quilt nio_tasks_per_group = 2, nio_groups = 1, /