I have a question of cloud process in CMAQ IPR program.
I tried to calculate contribution of wet scavenging using process analysis IPR program.
So, I set all of values in cloud chemistry routine from aqchem.F to zero and did run of IPR program.
And I expected to get some results with all of hourly negative values in cloud process.
But I got some positive values from cloud process.
I think if there is zero concentration from cloud chemistry (e.g. sulfate formation from droplets), cloud process of IPR program only reflect wet scavenging process, so, the results would be negative.
So, the result with positive values from cloud process with zero cloud chemistry is a error or bug of cloud process in IPR program ??
I’m looking forward to getting any responses from you all!