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WRF-CHEM结合MEGAN模拟臭氧,在其他地方模拟值和观测值都基本一致,偏差较小,但是在成都这个地方出现与观测值差别较大,不知道是什么原因,请问有大佬遇见过类似这种情况吗?图片如下,namelist设置如下。
&time_control
run_days = 0,
run_hours = 36,
run_minutes = 0,
run_seconds = 0,
start_year = 2022,
start_month = 08,
start_day = 01,
start_hour = 00,
end_year = 2022,
end_month = 08,
end_day = 02,
end_hour = 12,
interval_seconds = 21600
input_from_file = .true.,
history_interval = 60,
frames_per_outfile = 1,
restart = .false.,
restart_interval = 7200,
io_form_history = 2
io_form_restart = 2
io_form_input = 2
io_form_boundary = 2
io_form_auxinput5 = 2
auxinput5_inname ='emis_d01'
io_form_auxinput6 = 2
auxinput6_inname ='wrfbiochemi_d01'
/
&domains
time_step = 60,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 1,
e_we = 80,
e_sn = 80,
e_vert = 33,
p_top_requested = 5000,
num_metgrid_levels = 34,
num_metgrid_soil_levels = 4,
dx = 10000,
dy = 10000,
grid_id = 1,
parent_id = 1,
i_parent_start = 1,
j_parent_start = 1,
parent_grid_ratio = 1,
parent_time_step_ratio = 1,
feedback = 1,
smooth_option = 0
/
&physics
physics_suite = 'CONUS'
mp_physics = 10,
cu_physics = 5,
ra_lw_physics = 1,
ra_sw_physics = 4,
bl_pbl_physics = 1,
sf_sfclay_physics = 1,
sf_surface_physics = 2,
radt = 30,
bldt = 0,
cudt = 5,
icloud = 1,
num_land_cat = 21,
sf_urban_physics = 0,
progn = 1,
/
&fdda
/
&dynamics
hybrid_opt = 2,
w_damping = 0,
diff_opt = 1,
km_opt = 4,
diff_6th_opt = 0,
diff_6th_factor = 0.12,
base_temp = 290.
damp_opt = 3,
zdamp = 5000.,
dampcoef = 0.2,
khdif = 0,
kvdif = 0,
non_hydrostatic = .true.,
moist_adv_opt = 1,
scalar_adv_opt = 1,
gwd_opt = 1,
/
&bdy_control
spec_bdy_width = 5,
specified = .true.
/
&grib2
/
&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
&chem
chem_opt = 9,
chem_conv_tr = 5,
kemit = 9,
bioemdt = 30,
photdt = 30,
chemdt = 3.00,
emiss_inpt_opt = 101,
io_style_emissions = 2,
emiss_opt = 4,
chem_in_opt = 0,
phot_opt = 2,
gas_drydep_opt = 1,
aer_drydep_opt = 1,
bio_emiss_opt = 3,
depo_fact = 0.25,
dmsemis_opt = 1,
seas_opt = 2,
gas_bc_opt = 1,
gas_ic_opt = 1,
aer_bc_opt = 101,
aer_ic_opt = 101,
gaschem_onoff = 1,
aerchem_onoff = 1,
wetscav_onoff = 1,
cldchem_onoff = 1,
vertmix_onoff = 1,
conv_tr_wetscav = 1,
conv_tr_aqchem = 1,
biomass_burn_opt = 0,
plumerisefire_frq = 30,
have_bcs_chem = .false.,
aer_ra_feedback = 1,
aer_op_opt = 1,
opt_pars_out = 1,
diagnostic_chem = 1,
ne_area =134
/
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