<div dir="ltr"><div><div>Dear Tian Yue,<br><br>I have used the following 35 vertical levels and it worked fine:<br><br>eta_levels = 1.000, 0.993, 0.983, 0.970, 0.954,<br> 0.934, 0.909, 0.880, 0.845, 0.807,<br> 0.765, 0.719, 0.672, 0.622, 0.571,<br> 0.520, 0.468, 0.420, 0.376, 0.335,<br> 0.298, 0.263, 0.231, 0.202, 0.175,<br> 0.150, 0.127, 0.106, 0.088, 0.070,<br> 0.055, 0.040, 0.026, 0.013, 0.000,<br><br><br></div>Regards,<br></div>Ian Dragaud<br></div><div class="gmail_extra"><br><div class="gmail_quote">2018-03-27 14:58 GMT-03:00 <span dir="ltr"><<a href="mailto:wrf-users-request@ucar.edu" target="_blank">wrf-users-request@ucar.edu</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Wrf-users mailing list submissions to<br>
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Today's Topics:<br>
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1. Fail to run WRFV3.9 with specified eta_level (??)<br>
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Message: 1<br>
Date: Tue, 27 Mar 2018 20:46:25 +0800 (CST)<br>
From: ?? <<a href="mailto:tianyue0704@163.com">tianyue0704@163.com</a>><br>
To: <a href="mailto:wrf-users@ucar.edu">wrf-users@ucar.edu</a><br>
Subject: [Wrf-users] Fail to run WRFV3.9 with specified eta_level<br>
Message-ID: <<a href="mailto:36899a3d.1a8d0.162677ec9ad.Coremail.tianyue0704@163.com">36899a3d.1a8d0.162677ec9ad.<wbr>Coremail.tianyue0704@163.com</a>><br>
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Dear all,<br>
<br>
<br>
I`m currently running WRF Version 3.9 with 35 specified eta_levels, for the default vertical levels are not dense enough to study the boundary layer phenomenon. However, the calcution always stopped at just few seconds.<br>
<br>
<br>
I have checked rsl.out.* and rsl.error.* files, and there`s no obvious error message.<br>
<br>
<br>
I wonder if it is related to the numerically unstable issues, so I have tried different timestep such as 81, 54, 27, 18 ad 6s, but still got CFL prints in the rsl.* files.<br>
<br>
<br>
Can anyone figure out the reason? Or how can I get more detailed error message? Looking forward to your suggestion.<br>
<br>
<br>
Here`s my namelist.input :<br>
&time_control<br>
run_days = 0,<br>
run_hours = 42,<br>
run_minutes = 0,<br>
run_seconds = 0,<br>
start_year = 2016, 2016, 2016, 2016,<br>
start_month = 12, 12, 12, 12,<br>
start_day = 06, 06, 06, 06,<br>
start_hour = 00, 00, 00, 00,<br>
start_minute = 00, 00, 00, 00,<br>
start_second = 00, 00, 00, 00,<br>
end_year = 2016, 2016, 2016, 2016,<br>
end_month = 12, 12, 12, 12,<br>
end_day = 07, 07, 07, 07,<br>
end_hour = 18, 18, 18, 18,<br>
end_minute = 00, 00, 00, 00,<br>
end_second = 00, 00, 00, 00,<br>
interval_seconds = 21600<br>
input_from_file = .true., .true., .true., .true.,<br>
history_interval = 1440, 720, 720, 60,<br>
frames_per_outfile = 1000, 1000, 1000, 1000,<br>
restart = .false.,<br>
restart_interval = 3000,<br>
io_form_history = 2,<br>
io_form_restart = 2,<br>
io_form_input = 2,<br>
io_form_boundary = 2,<br>
debug_level = 0,<br>
/<br>
<br>
<br>
&domains<br>
<br>
<br>
eta_levels = 1.00, 0.9975, 0.995, 0.9925, 0.99,<br>
0.985, 0.98, 0.975, 0.97, 0.965,<br>
0.96, 0.95, 0.94, 0.93, 0.92,<br>
0.91, 0.90, 0.89, 0.88, 0.87,<br>
0.86, 0.85, 0.84, 0.82, 0.80,<br>
0.75, 0.70, 0.65, 0.60, 0.50,<br>
0.40, 0.30, 0.20, 0.10, 0.00,<br>
time_step = 6,<br>
time_step_fract_num = 0,<br>
time_step_fract_den = 1,<br>
max_dom = 4,<br>
e_we = 200, 178, 187, 205,<br>
e_sn = 200, 190, 193, 205,<br>
e_vert = 35, 35, 35, 35,<br>
p_top_requested = 10000,<br>
num_metgrid_levels = 32,<br>
num_metgrid_soil_levels = 4,<br>
dx = 27000, 9000, 3000, 1000,<br>
dy = 27000, 9000, 3000, 1000,<br>
grid_id = 1, 2, 3, 4,<br>
parent_id = 1, 1, 2, 3,<br>
i_parent_start = 1, 73, 57, 46,<br>
j_parent_start = 1, 69, 65, 63,<br>
parent_grid_ratio = 1, 3, 3, 3,<br>
parent_time_step_ratio = 1, 3, 3, 3,<br>
feedback = 1,<br>
smooth_option = 0,<br>
/<br>
<br>
<br>
&physics<br>
mp_physics = 2, 2, 2, 2,<br>
ra_lw_physics = 4, 4, 4, 4,<br>
ra_sw_physics = 4, 4, 4, 4,<br>
aer_opt = 2,<br>
aer_aod550_opt = 1, 1, 1, 1,<br>
aer_aod550_val = 0.12, 0.12, 0.12, 1.0,<br>
sf_sfclay_physics = 1, 1, 1, 1,<br>
sf_surface_physics = 2, 2, 2, 2,<br>
bl_pbl_physics = 1, 1, 1, 1,<br>
cu_physics = 1, 0, 0, 0,<br>
radt = 27, 9, 3, 1,<br>
bldt = 0, 0, 0, 0,<br>
cudt = 5, 5, 5, 5,<br>
isfflx = 1,<br>
ifsnow = 0,<br>
icloud = 1,<br>
num_soil_layers = 4,<br>
num_land_cat = 21,<br>
sf_urban_physics = 1, 1, 1, 1,<br>
slope_rad = 0, 0, 0, 1,<br>
topo_shading = 0, 0, 0, 1,<br>
topo_wind = 0, 0, 0, 0,<br>
/<br>
<br>
<br>
&fdda<br>
/<br>
<br>
<br>
&dynamics<br>
w_damping = 0,<br>
diff_opt = 1, 1, 1, 1,<br>
km_opt = 4, 4, 4, 4,<br>
diff_6th_opt = 0, 0, 0, 0,<br>
diff_6th_factor = 0.12, 0.12, 0.12, 0.12,<br>
base_temp = 290.,<br>
damp_opt = 0,<br>
zdamp = 5000., 5000., 5000., 5000.,<br>
dampcoef = 0.2, 0.2, 0.2, 0.2,<br>
khdif = 0, 0, 0, 0,<br>
kvdif = 0, 0, 0, 0,<br>
non_hydrostatic = .true.,.true.,.true.,.true.,<br>
moist_adv_opt = 1, 1, 1, 1,<br>
scalar_adv_opt = 1, 1, 1, 1,<br>
/<br>
<br>
<br>
&bdy_control<br>
spec_bdy_width = 5,<br>
spec_zone = 1,<br>
relax_zone = 4,<br>
specified = .true., .false.,.false.,.false.,<br>
nested = .false., .true., .true.,.true.,<br>
/<br>
<br>
<br>
&grib2<br>
/<br>
<br>
<br>
&namelist_quilt<br>
nio_tasks_per_group = 0,<br>
nio_groups = 1,<br>
/<br>
<br>
<br>
Cheers,<br>
Tian Yue<br>
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</blockquote></div><br></div>