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No lightning forecast when domain 2 starts in V4.5.2

cyc10

New member
Lightning forecast can run on domain 1, but it will stop once domain 2 start running. The lightning forecast will become all blank (zero).

This is my namelist input:

&time_control
run_days = 3,
run_hours = 0,
run_minutes = 0,
run_seconds = 0,
start_year = 2024, 2024,
start_month = 9, 9,
start_day = 21, 22,
start_hour = 18, 0,
start_minute = 00, 00,
start_second = 00, 00,
end_year = 2024, 2024,
end_month = 9, 9,
end_day = 24, 24,
end_hour = 18, 0,
end_minute = 0, 00,
end_second = 00, 00,
interval_seconds = 3600,
input_from_file = .true., .true.,
history_interval = 20, 20,
frames_per_outfile = 1000, 1000,
restart = .true.,
restart_interval = 720,
io_form_history = 2,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
debug_level = 0,
fine_input_stream = 0, 2,
io_form_auxinput2 = 2,
/

&domains
time_step = 30,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 2,
e_we = 280, 181,
e_sn = 280, 181,
e_vert = 35, 35,
p_top_requested = 5000,
num_metgrid_levels = 34,
num_metgrid_soil_levels = 4,
dx = 5000, 2500,
dy = 5000, 2500,
grid_id = 1, 2,
parent_id = 1, 1,
i_parent_start = 1, 96,
j_parent_start = 1, 94,
parent_grid_ratio = 1, 2,
parent_time_step_ratio = 1, 2,
feedback = 1,
smooth_option = 0,
/

&physics
mp_physics = 16, 16,
ra_lw_physics = 4, 4,
ra_sw_physics = 4, 4,
radt = 10, 10,
sf_sfclay_physics = 1, 1,
sf_surface_physics = 2, 2,
bl_pbl_physics = 1, 1,
bldt = 0, 0,
cu_physics = 16, 0,
cudt = 5, 5,
isfflx = 1,
ifsnow = 0,
icloud = 1,
surface_input_source = 1,
num_soil_layers = 4,
sf_urban_physics = 0, 0,
maxiens = 1,
maxens = 3,
maxens2 = 3,
maxens3 = 16,
ensdim = 144,
lightning_option = 1, 1,
lightning_dt = 30, 15,
lightning_start_seconds = 600, 600,
flashrate_factor = 1.0, 1.0,
cellcount_method = 0, 0,
iccg_method = 3, 3,

do_radar_ref = 1,
hailcast_opt = 0, 1,
haildt = 120,
hail_opt = 1,
/

&fdda
/

&dynamics
w_damping = 0,
diff_opt = 1,
km_opt = 4,
diff_6th_opt = 0, 0,
diff_6th_factor = 0.12, 0.12,
base_temp = 290.,
damp_opt = 0,
zdamp = 5000., 5000.,
dampcoef = 0.2, 0.2,
khdif = 0, 0,
kvdif = 0, 0,
non_hydrostatic = .true., .true.,
moist_adv_opt = 1, 1,
scalar_adv_opt = 1, 1,
/

&bdy_control
spec_bdy_width = 5,
spec_zone = 1,
relax_zone = 4,
specified = .true., .false.,
nested = .false., .true.,
/

&grib2
/

&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
 
Last edited:
Sorry I don't have an immediate answer to your question ....

However, I notice that your D02 starts 6-hour later than D01, and the feedback is on between the two domains. I am not sure whether this may cause some issues.

Can you initialize D01 and D02 at the same time, then try again? Please let me know whether this can fix the issue. Thanks.
 
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