Theoretical Prediction of Local Ozone Maxima Associated with the Passage of Cold Fronts

Abstract

To better understand the processes controlling the distribution and time evolution of trace chemical species such as ozone within the troposphere, comprehensive and coupled transport, transformation, and deposition models have been developed. An example of this kind of modeling system is the Regional Acid Deposition Model Version 1.0 (RADM 1.0) developed by Chang et al. (1987). Though specifically produced to study the relationship between sources and receptors of acid deposition, RADM 1.0 is equally well suited for studying the processes potentially responsible for the evolution of ozone in the troposphere. Many of the physical and chemical processes that affect ozone are explicitly included in RADM 1.0. These include long range transport, turbulent diffusion, both gas and aqueous phase chemistry, cloud scavenging and mixing, and dry deposition.