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Restart outputs not identical with MYNN PBL scheme

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clecoz

New member
Good afternoon,

I am running WRF with a restart after 6h, and bl_pbl_physics=5. The outputs at the restart time with or without (i.e. running straight from initial time) restart are identical. However, the next outputs (after 15min simulation) are not. I encounter the same problem when bl_pbl_physics=6, but not with bl_pbl_physics=1 or 7. Are some physics scheme not compatible with the restart option? Did I set something wrong? Please, see below the namelist (for the restart run).
Any ideas/suggestions are greatly appreciated.

Thanks,
Camille

&time_control
run_hours=48,
start_year=2018,
start_month=01,
start_day=01,
start_hour=06,
start_minute=0,
start_second=0,
end_year=2018,
end_month=01,
end_day=03,
end_hour=00,
end_minute=0,
end_second=0,
interval_seconds=21600,
input_from_file=.true.,
write_input=false,
adjust_output_times=.true.,
nocolons=true,
auxinput1_inname="met_em.d<domain>.<date>",
auxinput4_inname="wrflowinp_d<domain>",
auxinput4_interval=360,
io_form_auxinput4=2,
history_interval=15,
frames_per_outfile=1,
restart=.True.,,
restart_interval=60,
io_form_input=2,
io_form_history=2,
io_form_boundary=2,
debug_level=0,
iofields_filename="my_file_d01.txt",
ignore_iofields_warning=.true.,
write_hist_at_0h_rst = .true.
/
&pio_control
/
&dfi_control
/
&domains
time_step=36,
min_time_step=-1,
max_time_step=-1,
target_cfl=1.2,
target_hcfl=0.84,
max_step_increase_pct=5,
starting_time_step=-1,
step_to_output_time=.true.,
adaptation_domain=1,
use_adaptive_time_step=.true.,
max_dom=1,
e_we=52,
e_sn=52,
e_vert=51,
num_metgrid_levels=32,
num_metgrid_soil_levels=4,
p_top_requested=10000,
dx=9000,
dy=9000,
grid_id=1,
parent_id=0,
i_parent_start=1,,
j_parent_start=1,
parent_grid_ratio=1,
parent_time_step_ratio=1,
feedback=0,
smooth_option=2,
/
&tc
/
&physics
mp_physics=10,
ra_lw_physics=4,
ra_sw_physics=4,
radt=1,
sf_sfclay_physics=5,
sf_surface_physics=2,
bl_pbl_physics=5,
sf_urban_physics=1,
bldt=0,
cu_physics=3,
cudt=0,
num_soil_layers=4,
mp_zero_out=0,
sst_update=1,
/
&noah_mp
/
&fdda
/
&scm
/
&dynamics
w_damping=0,
diff_opt=1,
km_opt=1,
dampcoef=0.2,
base_temp=290.0,
/
&bdy_control
specified=.true.,
nested=.false.,
/
&grib2
/
&fire
/
&stoch
/
&diags
/
&afwa
/
&namelist_quilt
/
 
WRFV3.9.1.1 has a known problem for restarting. Please see the website here:
http://www2.mmm.ucar.edu/wrf/users/wrfv3.9/known-prob-3.9.1.1.html

I am not sure whether the issue you have is related to the known problem. Can you try WRFV4.0.1 ? Please let me know if the problem still exists.

Ming Chen
 
Camille,
We will look into this issue and it may take some ime. Thanks for your patience.
Ming Chen
 
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