Condition of Photochemical and Chemical Equilibrium of Atmospheric Trace Gases: A Review of Analysis Methods and Applications

This paper presents a review of publications in which the equilibrium of chemically active atmospheric trace gases is used in various problems of retrieving unmeasurable (poorly measured) characteristics at the altitudes of the troposphere, stratosphere, and mesosphere–lower thermosphere. We summarize results of our studies on the development of mathematically correct analysis of trace gas equilibrium with involves numerical modeling, including the results from global 3D chemical transport models.