Dear Sir,
 
 
I am using RegCM4.0 CHEM model. I was successfully simulated the model for the East Asian domain.
I got the AOD values minimum 50 and maximum 650 which are very big after doing
AOD=sum(aext8,z=1,z=18).
 
Can any one help me where I was wrong.
Thanking you
With Regards
P.Ramesh Kumar