Hello Ben,
Thank you for the reply!
I attempted to use zero-out method base on CMAQv5.2 to account for the PM2.5 concentration contribution of emission sources like gasoline vehicle, diesel vehicle, and solvent use. Due to the underestimate of SOA simulation, the contribution would be influenced. Therefore, I would like to use the VBS mechanism to mitigate such underestimate.
The simulated period is the whole year of 2013, 2017, and 2020, and the simulation domain covers the whole China. The chemical mechanism I previously used is cb6r3_ae6_aq.
I have noticed the CMAQv5.0.2 provides the VBS mechanism, but my advisor insists on using the CMAQv5.2. So I’m here to seek for help. Could you please give me more detailed descriptions on how to use the VBS mechanism in CMAQv5.2 such as what species I should provide in the emission inventory?
Best regards,
Shigan Liu