WRF global run - one domain

[Paulina]

Hi everyone

I am trying to run global simulation, for only one domain. Unfortunatelly, model always crashed (usually after few minutes). I prepared namelist.input based on this topic: http://forum.wrfforum.com/viewtopic.php?f=6&t=2833

Did anyone tried to run global domain and could help me?

My namelist.input below:

&time_control
run_days = 31,
run_hours = 0,
run_minutes = 0,
run_seconds = 0,
start_year = 2018
start_month = 01,
start_day = 01,
start_hour = 00,
start_minute = 00,
start_second = 00,
end_year = 2018,
end_month = 02,
end_day = 01,
end_hour = 00,
end_minute = 00,
end_second = 00,
history_interval = 60,
interval_seconds = 21600,
input_from_file = .false.,
frames_per_outfile = 10000000,
restart = .false.,
restart_interval_h = 744,
override_restart_timers = .true.,
io_form_history = 2
io_form_restart = 2
io_form_input = 2
io_form_boundary = 2
debug_level = 0
/

&domains
time_step = 600
time_step_fract_num = 00
time_step_fract_den = 112
max_dom = 1,
e_we = 361,
e_sn = 181,
e_vert = 45,
p_top_requested = 10000,
num_metgrid_levels = 38,
num_metgrid_soil_levels = 4,
dx = 111177.5,
dy = 111177.5,
grid_id = 1,
parent_id = 0,
i_parent_start = 1,
j_parent_start = 1,
parent_grid_ratio = 1,
parent_time_step_ratio = 1,
feedback = 1,
smooth_option = 1,
/

&physics
mp_physics = 3,
ra_lw_physics = 1,
ra_sw_physics = 1,
radt = 30,
sf_sfclay_physics = 1,
sf_surface_physics = 1,
bl_pbl_physics = 1,
bldt = 0,
cu_physics = 3,
cudt = 5,
isfflx = 1,
ifsnow = 0,
icloud = 1,
surface_input_source = 1,
num_soil_layers = 5,
mp_zero_out = 0,
maxiens = 1,
maxens = 3,
maxens2 = 3,
maxens3 = 16,
ensdim = 144,
/

&fdda
/

&dynamics
rk_ord = 3,
diff_opt = 1,
km_opt = 4,
damp_opt = 3,
base_temp = 290.
zdamp = 5000.,
dampcoef = 0.2,
khdif = 0,
kvdif = 0,
smdiv = 0.1,
emdiv = 0.01,
epssm = 0.1,
time_step_sound = 0,
h_mom_adv_order = 5,
v_mom_adv_order = 3,
h_sca_adv_order = 5,
v_sca_adv_order = 3,
non_hydrostatic = .true.,
moist_adv_opt = 0,
scalar_adv_opt = 0,
chem_adv_opt = 0,
tke_adv_opt = 0,
fft_filter_lat = 45.,
/

&bdy_control
periodic_x = .true.,
symmetric_xs = .false.,
symmetric_xe = .false.,
open_xs = .false.,
open_xe = .false.,
periodic_y = .false.,
symmetric_ys = .false.,
symmetric_ye = .false.,
open_ys = .false.,
open_ye = .false.,
nested = .false.,
polar = .true.,
/

&grib2
/

&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/

 

[kwerner]

Hi,
In general, we don't really recommend using the WRF Global application, and try to steer users toward the MPAS model, instead, which was originally built as a global model, and is much better at scaling, and therefore runs much faster without having to use a very small time-step. WRF was originally built as a regional model, and some developers later added a global component, but it is not highly tested, and is no longer developed, so we cannot always guarantee that you will get good results, or that it will even run - just depending on your application. If you are interested in taking a look at MPAS, you can find information here:
https://mpas-dev.github.io

I can try to take a look at your output to see if anything stands out to me, but as this application is very out of date, it may be likely that the solution won't be simple. If you'd like me to take a look, please attach your output (e.g., all rsl* files packaged into a single *.tar file) and let me know which version of WRF you are using. To attach files, while in the text editing box, click on the tab with 3 horizontal lines below the box, and instructions for attaching files will be provided.