[Wrf-users] How to deal with the problem that Typhoon Intensity is underestimated?

[孙佳]

Dear all,
Thank you for your time at first!
I have run WRF to study a typhoon case and the result shows a good path but an underestimated intensity. Do you know how to improve the estimated intensity accuracy? 

FYI, JMA best track data gives a minimum SLP of 940hPa and a maximum wind speed of 50m/s while my WRF output shows only 960hPa and 30m/s, respectively.

The following is my namelist set, and at the same time my resolution is 30/10 Km.

&physics
mp_physics               = 2,        2,
ra_lw_physics            = 1,        1,
ra_sw_physics            = 1,        1,
radt                     = 10,       10,
sf_sfclay_physics        = 1,        1,
sf_surface_physics       = 2,        2,
bl_pbl_physics           = 1,        1,
bldt                     = 0,        0,
cu_physics               = 1,        1,
cudt                     = 0,        0,
isfflx                   = 2,
isftcflx                 = 2,
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,
sst_update               = 1,
/
&fdda
/
&dynamics
w_damping                = 0,
diff_opt                 = 1,
km_opt                   = 4,
diff_6th_opt             = 0,        0,
diff_6th_factor          = 0.50,      0.50,
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,
/

2013-12-17 



Jia, SUN
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