Bad Result of Particulate Matter from WRF Chem 4.4

[Ioga Lazuardi]

hallo friend,
i wanna ask if somebody have the same issues and already solve this problem.
i run wrf chem on mid latitude area, only 1 domain, i use GFS data as meteorology input, edgar htap mozcart for anthropogenic using chem opt 301, also i use waccm as boundery use mozbc, i already check the meteorology data and compare it with observation data, the result are good expect relative humidity that give moderate result,
for the PM2.5 the result give this number (as sample)

1.13E+29​

4.94E+28​

1.01E+28​

9.13E+26​

4.09E+25​

anyone know how to solve this? this is my first time running wrf chem on mid latitude that use complex topography and winter condition so i still cant figure how to solve it

 

[Zhanghaopeng]

Hello, loga.
I have encountered similar problems to yours, and these error areas are mainly in desert areas and coastal areas. Do you have a solution? Also, will your model work smoothly? My model will automatically stop after running for a while. I don't know if it's caused by these wrong values.

 

[Ioga Lazuardi]

Hello, loga.
I have encountered similar problems to yours, and these error areas are mainly in desert areas and coastal areas. Do you have a solution? Also, will your model work smoothly? My model will automatically stop after running for a while. I don't know if it's caused by these wrong values.

Was I got this error with negative value, so I add chem_adv_opt = 2 (&dynamic) and the value become positive, before I don't use cumulus option on my model because only 5km, then I try add cu_physic=3, and the problem solved,

 

[Zhanghaopeng]

Loga, thank you very much for your reply. I will test it your way to see if it is the same problem. Now that I have turned off the dust_opt, this problem has been temporarily solved.

 

[Ioga Lazuardi]

Loga, thank you very much for your reply. I will test it your way to see if it is the same problem. Now that I have turned off the dust_opt, this problem has been temporarily solved.

Glad to hear you solved it