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我想输出WRF逐小时的预报数据,但是输出的wrfout不是整点数据,而是会多出18s,可以看一下我上传的截图。
修改 history_interval=180,逐3小时输出就不会出现这个问题,请教一下什么原因,谢谢。
这是我的nameist
&time_control
run_days = 0,
run_hours = 48,
run_minutes = 0,
run_seconds = 0,
start_year = 2018, 2018, 2018,
start_month = 04, 04, 04,
start_day = 23, 23, 23,
start_hour = 00, 00, 00,
start_minute = 00, 00, 00,
start_second = 00, 00, 00,
end_year = 2018,2018,2018,
end_month = 04, 04, 04,
end_day = 25, 25, 25,
end_hour = 00, 00, 00,
end_minute = 00, 00, 00,
end_second = 00, 00, 00,
interval_seconds = 3600,
input_from_file = .true., .true., .false.,
history_interval = 60, 60, 60,
frames_per_outfile = 1, 1, 1
restart = .false.,
restart_interval = 21600,
debug_level = 0,
write_input = .false.,
/
&domains
time_step = 54,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 1,
e_we = 122,148,221,
e_sn = 97,100,131,
e_vert = 30,30,30,
dx = 9000,3000,1000,
dy = 9000,3000,1000,
grid_id = 1,2,3
parent_id = 1,1,2
i_parent_start = 1,37,37
j_parent_start = 1,25,19
parent_grid_ratio = 1,3,3
parent_time_step_ratio = 1,3,3
feedback = 1,
p_top_requested = 5000,
num_metgrid_levels = 32,
num_metgrid_soil_levels = 4,
vortex_interval = 15,
max_vortex_speed = 40,
corral_dist = 9,
track_level = 50000,
time_to_move = 0,
/
&physics
mp_physics = 16,16,16,
ra_lw_physics = 1,1,1
ra_sw_physics = 1,1,1
radt = 9,3,1,
sf_sfclay_physics = 1,1,1,
sf_surface_physics = 1,1,1,
bl_pbl_physics = 1,1,1,
bldt = 0,0,0,
cu_physics = 1,1,1,
cudt = 5,5,5,
isfflx = 1,
ifsnow = 1,
icloud = 1,
surface_input_source = 1,
num_soil_layers = 4,
sf_urban_physics = 0,0,0,
/
&fdda
/
&dynamics
w_damping = 1,
diff_opt = 1,
km_opt = 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 = 0.2, 0.2,0.2
khdif = 0,0,0
kvdif = 0,0,0
non_hydrostatic = .true.,.true., .true.,
moist_adv_opt = 1, 1, 1,
scalar_adv_opt = 1, 1, 1,
/
&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,
/
&dfi_control
/
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