I did a couple of runs using 3 domains and the mozbc utility to include MOZART boundary and initial conditions.
I compared the model outcome for O3, CO, NO, NO2, SO2, T, and Rh with observations and everything seems to be OK for all of the 3 domains.
I have an issue with PM concentrations though. Although I get normal values for the outer domain, the PM concentration values for the inner domains are unrealistic (order of magnitude x10^30). The only thing I can guess is that this issue is due to PM2.5 concentrations because PM2.5 & PM10 max values are the same.
Anyone faced a similar issue?
Below you can see my namelist.input file. In this run I included dust and sea salt emissions.
- Code: Select all
&time_control
run_days = 0,
run_hours = 0,
run_minutes = 0,
run_seconds = 0,
start_year = 2014, 2014, 2014,
start_month = 07, 07, 07,
start_day = 01, 01, 01,
start_hour = 00, 00, 00,
start_minute = 00, 00, 00,
start_second = 00, 00, 00,
end_year = 2014, 2014, 2014,
end_month = 07, 07, 07,
end_day = 31, 31, 31,
end_hour = 00, 00, 00,
end_minute = 00, 00, 00,
end_second = 00, 00, 00,
interval_seconds = 10800,
input_from_file = .true., .true., .true.,
history_interval = 60, 360, 60,
frames_per_outfile = 4, 4, 4,
restart = .false.,
restart_interval = 0,
io_form_history = 2,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
auxinput6_inname = 'wrfbiochemi_d01',
auxinput7_inname = 'wrffirechemi_d<domain>',
auxinput8_inname = 'wrfchemi_gocart_bg_d<domain>',
auxinput12_inname = 'wrf_chem_input',
auxinput13_inname = 'wrfchemv_d<domain>',
auxinput5_interval_m = 86400, 86400, 60,
auxinput7_interval_m = 86400, 86400, 60,
auxinput8_interval_m = 86400, 86400, 60,
auxinput13_interval_m = 86400, 86400, 60,
io_form_auxinput2 = 2,
io_form_auxinput5 = 0,
io_form_auxinput6 = 0,
io_form_auxinput7 = 0,
io_form_auxinput8 = 0,
io_form_auxinput12 = 0,
io_form_auxinput13 = 0,
debug_level = 0,
auxinput1_inname = "met_em.d<domain>.<date>",
/
&dfi_control
/
&domains
time_step = 270,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 3,
s_we = 1, 1, 1,
e_we = 21, 31, 46,
s_sn = 1, 1, 1,
e_sn = 18, 22, 28,
e_vert = 30, 30, 30,
num_metgrid_levels = 27,
num_metgrid_soil_levels = 4,
dx = 45000, 15000, 5000,
dy = 45000, 15000, 5000,
grid_id = 1, 2, 3,
parent_id = 1, 1, 2,
i_parent_start = 1, 6, 9,
j_parent_start = 1, 6, 6,
parent_grid_ratio = 1, 3, 3,
parent_time_step_ratio = 1, 3, 3,
p_top_requested = 5000,
feedback = 0, !
smooth_option = 0
p_top_requested = 5000
zap_close_levels = 50
interp_type = 1
t_extrap_type = 2
force_sfc_in_vinterp = 0
use_levels_below_ground = .true.
use_surface = .true.
lagrange_order = 1
/
sfcp_to_sfcp = .true.
&physics
mp_physics = 2, 2, 2,
progn = 1, 1, 1,
ra_lw_physics = 1, 1, 1,
ra_sw_physics = 2, 2, 2,
radt = 40, 40, 40,
sf_sfclay_physics = 1, 1, 1,
sf_surface_physics = 2, 2, 2,
bl_pbl_physics = 1, 1, 1,
bldt = 0, 0, 0,
cu_physics = 5, 0, 0,
cu_diag = 1, 0, 0,
cudt = 0, 0, 0,
ishallow = 0,
isfflx = 1,
ifsnow = 1,
icloud = 1,
surface_input_source = 1,
num_soil_layers = 4,
sf_urban_physics = 0, 0, 0,
mp_zero_out = 2,
mp_zero_out_thresh = 1.e-12
maxiens = 1,
maxens = 3,
maxens2 = 3,
maxens3 = 16,
ensdim = 144,
cu_rad_feedback = .true.,
/
&fdda
/
&dynamics
rk_ord = 3,
w_damping = 1,
diff_opt = 1, 1, 1,
km_opt = 4, 4, 4,
diff_6th_opt = 0, 0, 0,
diff_6th_factor = 0.12, 0.12, 0.12,
base_temp = 290.
damp_opt = 0,
zdamp = 5000., 5000., 5000.,
dampcoef = 0.01, 0.01, 0.01
khdif = 0, 0, 0,
kvdif = 0, 0, 0,
non_hydrostatic = .true., .true., .true.,
moist_adv_opt = 2, 2, 2,
scalar_adv_opt = 2, 2, 2,
chem_adv_opt = 2, 2, 2,
tke_adv_opt = 2, 2, 2,
time_step_sound = 4, 4, 4,
h_mom_adv_order = 5, 5, 5,
v_mom_adv_order = 3, 3, 3,
h_sca_adv_order = 5, 5, 5,
v_sca_adv_order = 3, 3, 3,
/
&bdy_control
spec_bdy_width = 5,
spec_zone = 1,
relax_zone = 4,
specified = .true., .false., .false.,
nested = .false., .true., .true.,
/
&grib2
/
&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
&chem
kemit = 19,
chem_opt = 2, 2, 2,
bioemdt = 0, 0, 0,
photdt = 0, 0, 0,
chemdt = 3.5, 1.2, 0,4,
io_style_emissions = 0,
emiss_opt = 0, 0, 0,
emiss_opt_vol = 0, 0, 0,
emiss_ash_hgt = 20000.,
chem_in_opt = 0, 0, 0,
phot_opt = 3, 3, 3,
gas_drydep_opt = 1, 1, 1,
aer_drydep_opt = 1, 1, 1,
bio_emiss_opt = 0, 0, 0,
aircraft_emiss_opt = 0, 0, 0,
ne_area = 200,
depo_fact = 0.25,
dust_opt = 2,
dmsemis_opt = 0,
seas_opt = 2,
gas_bc_opt = 1, 1, 1,
gas_ic_opt = 1, 1, 1,
aer_bc_opt = 1, 1, 1,
aer_ic_opt = 1, 1, 1,
gaschem_onoff = 1, 1, 1,
aerchem_onoff = 1, 1, 1,
wetscav_onoff = 0, 0, 0,
cldchem_onoff = 0, 0, 0,
vertmix_onoff = 1, 1, 1,
chem_conv_tr = 1, 0, 0,
conv_tr_wetscav = 0, 0, 0,
conv_tr_aqchem = 0, 0, 0,
biomass_burn_opt = 0, 0, 0,
plumerisefire_frq = 30, 30, 30,
have_bcs_chem = .true., .false., .false.,
aer_ra_feedback = 1,
aer_op_opt = 1,
opt_pars_out = 0,
diagnostic_chem = 0,
/
