Ozone and T2 simulation is inaccurate

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M

mohouwa

New member
I am using WRF-CHEM 4.2.1 to simulate the concentration of ozone from 2016.9.16 to 2016.9.28 , the result shows a serious deviatin, and the T2 variable is even negative, I don't know where the problems is .... could someone help me ? My namelist.input has attched below.
 

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Hi,

Can you provide your rsl.out.0000 and rsl.error.0000? It would also help to increase the debug_level (~300) to provide more information. Negative T2 may indicate a problem with your initial conditions and/or the surface model. Does your wrfinput file look reasonable?

Jordan
 
Sorry, I have just saw your comment now :oops: :oops: , my problem has been solved. The reason for the error is that the physical parameter of the namelist is incorrectly set，I have changed the ra_sw_physics to 5 and bl_pbl_physics to 1，and the result are much more accurate.
 
Hi @mohouwa

Good to hear your problem has been solved. Were these your only changes? I was comparing your changes to your original namelist and noticed that you had not specified a boundary layer physics options (i.e., bl_pbl_physics = 0). Have you also changed this?

Jordan
 
jordanschnell said:
Hi @mohouwa

Good to hear your problem has been solved. Were these your only changes? I was comparing your changes to your original namelist and noticed that you had not specified a boundary layer physics options (i.e., bl_pbl_physics = 0). Have you also changed this?

Jordan
Click to expand...

Yes , I have changed bl_pbl_physics=1 in my namelist :D Here is my updated namelist.input
 

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