<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><div>Dear All,</div><div>I am try to use wrf chem simulate a case, but wrf carshed. I only use a single domain, but still did not work.</div><div>I googled some same errors online, but they didnot provide a way to solve this problem.</div><div>I wish you could help me. , Below is the rsl.error info</div><div>-----------------------------------------------------------------------------------------------------------------------------------</div><div> d01 2010-11-06_00:27:00 2 points exceeded cfl=2 in domain d01 at time 2010-11-06_00:27:00 hours<br> d01 2010-11-06_00:27:00 MAX AT i,j,k: 6 5 20 vert_cfl,w,d(eta)= 2.049749 -7.065931 3.5521165E-02<br> d01 2010-11-06_00:27:00 328 points exceeded cfl=2 in domain d01 at time 2010-11-06_00:27:00 hours<br> d01 2010-11-06_00:27:00 MAX AT i,j,k: 7 5 20 vert_cfl,w,d(eta)= 5.331583 -134.8652 3.5521165E-02<br> d01 2010-11-06_00:27:00 851 points exceeded cfl=2 in domain d01 at time 2010-11-06_00:27:00 hours<br> d01 2010-11-06_00:27:00 MAX AT i,j,k: 8 5 26 vert_cfl,w,d(eta)= 150.2755 -15254.50 1.5971567E-02</div><div>--------------------------------------------------------------------------------------------------------------------------------------</div><div>And below is my namelist, would you help me ?</div><div> </div><div><span lang="EN"><p> &time_control</p>
<p> run_days = 05,</p>
<p> run_hours = 0,</p>
<p> run_minutes = 0,</p>
<p> run_seconds = 0,</p>
<p> start_year = 2010, 2010, 2010, 2010,</p>
<p> start_month = 11, 11, 11, 11,</p>
<p> start_day = 06, 06, 06, 06,</p>
<p> start_hour = 00, 00, 00, 00,</p>
<p> start_minute = 00, 00, 00, 00,</p>
<p> start_second = 00, 00, 00, 00,</p>
<p> end_year = 2010, 2010, 2010, 2010,</p>
<p> end_month = 11, 11, 11, 11,</p>
<p> end_day = 13, 13, 13, 13,</p>
<p> end_hour = 00, 00, 00, 00,</p>
<p> end_minute = 00, 00, 00, 00,</p>
<p> end_second = 00, 00, 00, 00,</p>
<p> interval_seconds = 21600</p>
<p> input_from_file = .true.,.true.,.true.,.true.,</p>
<p> history_interval = 60, 60, 60, 60,</p>
<p> frames_per_outfile = 24, 24, 24, 24,</p>
<p> restart = .false.,</p>
<p> restart_interval = 5000,</p>
<p> io_form_history = 2</p>
<p> io_form_restart = 2</p>
<p> io_form_input = 2</p>
<p> io_form_boundary = 2</p>
<p> io_form_auxinput5 =2</p>
<p> auxinput5_interval =3600, 3600,3600</p>
<p> debug_level = 0</p>
<p> /</p>
<p> &domains</p>
<p> time_step = 180,</p>
<p> time_step_fract_num = 0,</p>
<p> time_step_fract_den = 1,</p>
<p> max_dom = 1,</p>
<p> e_we = 180, 151, 160, 115,</p>
<p> e_sn = 180, 139, 148, 94,</p>
<p> e_vert = 28, 28, 28, 28,</p>
<p> p_top_requested = 5000,</p>
<p> num_metgrid_levels = 27,</p>
<p> num_metgrid_soil_levels = 4,</p>
<p> dx = 27000, 9000, 3000, 1000,</p>
<p> dy = 27000, 9000, 3000, 1000,</p>
<p> grid_id = 1, 2, 3, 4,</p>
<p> parent_id = 0, 1, 2, 3,</p>
<p> i_parent_start = 1, 64, 48, 60, </p>
<p> j_parent_start = 1, 54, 39, 38,</p>
<p> parent_grid_ratio = 1, 3, 3, 3,</p>
<p> parent_time_step_ratio = 1, 3, 3, 3,</p>
<p> feedback = 1,</p>
<p> smooth_option = 0</p>
<p> /</p>
<p> &physics</p>
<p> mp_physics = 2, 2, 2, 2,</p>
<p> ra_lw_physics = 1, 1, 1, 1,</p>
<p> ra_sw_physics = 2, 2, 2, 2,</p>
<p> radt = 30, 30, 30, 30,</p>
<p> sf_sfclay_physics = 1, 1, 1, 1,</p>
<p> sf_surface_physics = 2, 2, 2, 2,</p>
<p> bl_pbl_physics = 1, 1, 1, 1,</p>
<p> bldt = 0, 0, 0, 0,</p>
<p> cu_physics = 5, 5, 0, 0,</p>
<p> cu_rad_feedback = .true., .true., .true., .true.,</p>
<p> cudt = 5, 5, 5, 5,</p>
<p>cu_diag =1, 1, 1, 1,</p>
<p> isfflx = 1, </p>
<p>progn =1, 1, 1, 1, </p>
<p> ifsnow = 0,</p>
<p> icloud = 1,</p>
<p> surface_input_source = 1,</p>
<p> num_soil_layers = 4,</p>
<p> sf_urban_physics = 0, 0, 0, 0,</p>
<p> maxiens = 1,</p>
<p> maxens = 3,</p>
<p> maxens2 = 3,</p>
<p> maxens3 = 16,</p>
<p> ensdim = 144,</p>
<p> /</p>
<p> &fdda</p>
<p> /</p>
<p> &dynamics</p>
<p> w_damping = 0,</p>
<p> diff_opt = 1,</p>
<p> km_opt = 4,</p>
<p> diff_6th_opt = 0, 0, 0, 0,</p>
<p> diff_6th_factor = 0.12, 0.12, 0.12, 0.12,</p>
<p> base_temp = 290.</p>
<p> damp_opt = 0,</p>
<p> zdamp = 5000., 5000., 5000., 5000.,</p>
<p> dampcoef = 0.2, 0.2, 0.2, 0.2,</p>
<p> khdif = 0, 0, 0, 0,</p>
<p> kvdif = 0, 0, 0, 0,</p>
<p> non_hydrostatic = .true., .true., .true., .true.,</p>
<p> chem_adv_opt = 2, 2, 2, 2,</p>
<p> moist_adv_opt = 2, 2, 2, 2,</p>
<p> scalar_adv_opt = 2, 2, 2, 2,</p>
<p> /</p>
<p> &bdy_control</p>
<p> spec_bdy_width = 5,</p>
<p> spec_zone = 1,</p>
<p> relax_zone = 4,</p>
<p> specified = .true., .false.,.false., .false.,</p>
<p> nested = .false., .true., .true., .true.,</p>
<p> /</p>
<p>&chem</p>
<p> kemit = 8,</p>
<p> chem_opt = 105, 105, 105, 105,</p>
<p> bioemdt = 30, 30, 30, 30,</p>
<p> photdt = 30, 30, 30, 30,</p>
<p> chemdt = 0, 0, 7.5, 7.5,</p>
<p> io_style_emissions = 1, </p>
<p>emiss_inpt_opt = 102, 102, 102, 102,</p>
<p> emiss_opt = 3, 3, 3, 3,</p>
<p> chem_in_opt = 0, 0, 0, 0,</p>
<p> phot_opt = 2, 2, 2, 2, </p>
<p> gas_drydep_opt = 1, 1, 1, 1,</p>
<p> aer_drydep_opt = 1, 1, 1, 1,</p>
<p> bio_emiss_opt = 1, 1, 1, 1,</p>
<p> dust_opt = 2,</p>
<p> dmsemis_opt = 0,</p>
<p> seas_opt = 2,</p>
<p> gas_bc_opt = 1, 1, 1, 1,</p>
<p> gas_ic_opt = 1, 1, 1, 1,</p>
<p> aer_bc_opt = 1, 1, 1, 1,</p>
<p> aer_ic_opt = 1, 1, 1, 1,</p>
<p> gaschem_onoff = 1, 1, 1, 1,</p>
<p> aerchem_onoff = 1, 1, 1, 1,</p>
<p> wetscav_onoff = 0, 0, 0, 0,</p>
<p> cldchem_onoff = 0, 0, 0, 0,</p>
<p> vertmix_onoff = 1, 1, 1, 1,</p>
<p> chem_conv_tr = 1, 1, 1, 1,</p>
<p> biomass_burn_opt = 0, 0, 0, 0,</p>
<p> have_bcs_chem = .false., .false., .false., .false.,</p>
<p> aer_ra_feedback = 1, 1, 1, 1,</p>
<p> aer_op_opt = 1, </p>
<p> opt_pars_out = 1, </p>
<p> diagnostic_chem = 0, </p>
<p> /</p>
<p>กก</p>
<p> &grib2</p>
<p> /</p>
<p> &namelist_quilt</p>
<p> nio_tasks_per_group = 0,</p>
<p> nio_groups = 1,</p>
<p> /</p>
</span></div><div>-------------------------------------------------------------</div><div>I have spent days solving this problem, but no result, this almost drives me crazy, please help me.</div><div>Thank you.</div><div> </div><div>Best,</div><div>WangNan</div><div> </div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>