WRF does not calculate Cloud Optical Thickness output

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WRF does not calculate Cloud Optical Thickness output

Postby todor » Mon Jul 27, 2020 5:40 am

Hello,
for some time I am trying to obtain data for cloud optical thickness from wrf model.
However, the output values for the TAUCLDI (CLOUD OPTICAL THICKNESS FOR ICE) and TAUCLDC (CLOUD OPTICAL THICKNESS FOR WATER) are always 0. As far as I know this means that the model is not computing these values.
I've tried different parameters in the &physics block in namelist.input but still cannot understand what I am missing.
Is it possible that the model needs some additional data to calculate the thickness properties ?
Can somebody help me with the problem ?
I am using v4 of the WRF model and these are the physics configs:

Code: Select all
&physics                 
mp_physics               = 7,        7,
use_aero_icbc            = .true.,
use_rap_aero_icbc        = .true.,
aer_opt                  = 2,
aer_aod550_opt           = 1,
aer_aod550_val           = 0.12,
aer_angexp_opt           = 1,
aer_angexp_val           = 1.7,
aer_ssa_opt              = 1,
aer_asy_opt              = 1,
shcu_physics             = 2,        2,
ra_lw_physics            = 5,        5,
ra_sw_physics            = 5,        5,
radt                     = 30,       30,
bl_mynn_edmf             = 0,        0,
sf_sfclay_physics        = 5,        5,
sf_surface_physics       = 2,        2,
bl_pbl_physics           = 5,        5,
bldt                     = 0,        0,
cu_physics               = 1,        1,
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,
/


Thank you
Todor
todor
 
Posts: 2
Joined: Wed Jun 17, 2020 6:01 am

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