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本帖最后由 蚊子 于 2018-4-22 12:51 编辑
最近参考文献尝试模拟台风路径,尝试多次,台风路径都偏差较大。
文献:http://xueshu.baidu.com/s?wd=paperuri%3A%28c39e0fa592de30bb63837eee62bd6776%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Fwww.doc88.com%2Fp-3807768443007.html&ie=utf-8&sc_us=10387339019327777387
文献dx 为 15km:3km
由于在自己笔记本电脑转我把dx改为 15Km:5kmspin_up 6h
namelist.input如下
&time_control
run_days = 5,
run_hours = 6,
run_minutes = 0,
run_seconds = 0,
start_year = 2010, 2010,
start_month = 10, 10,
start_day = 18, 18,
start_hour = 18, 18,
start_minute = 00, 00,
start_second = 00, 00,
end_year = 2010, 2010,
end_month = 10, 10,
end_day = 24, 24,
end_hour = 00, 00,
end_minute = 00, 00,
end_second = 00, 00,
interval_seconds = 21600,
input_from_file = .true., .true.,
history_interval = 180, 60,
frames_per_outfile = 1, 1,
restart = .false.,
restart_interval = 5000,
io_form_history = 2,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
debug_level = 0,
/
&domains
time_step = 60,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 2,
e_we = 279, 337,
e_sn = 279, 304,
e_vert = 30, 30,
p_top_requested = 5000,
num_metgrid_levels = 27,
num_metgrid_soil_levels = 4,
dx = 15000, 5000,
dy = 15000, 5000,
grid_id = 1, 2,
parent_id = 1, 1,
i_parent_start = 1, 66,
j_parent_start = 1, 59,
parent_grid_ratio = 1, 3,
parent_time_step_ratio = 1, 3,
feedback = 1,
smooth_option = 0,
/
&physics
mp_physics = 6, 6,
ra_lw_physics = 1, 1,
ra_sw_physics = 1, 1,
radt = 30, 30,
sf_sfclay_physics = 1, 1,
sf_surface_physics = 2, 2,
bl_pbl_physics = 1, 1,
bldt = 0, 0,
cu_physics = 1, 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,
/
&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,
/
模拟结果偏差很大
文献结果
区域选小,效果要好些 物理方案都没变
初学wrf模式,请问各位前辈,在模拟时,区域选择是越大越好吗?
我模拟的为什么和文献差别这么大呢?
有没有更好的方案呢?模拟了很多次,结果都不理想,望各位指教~
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