This session welcomes studies funded by, but not limited to, NASA’s Atmospheric Composition Modeling and Analysis Program (ACMAP). In particular, studies related to global and regional modeling, satellite and aircraft in-situ data analysis in the areas of atmospheric chemistry, air quality, and the oxidation efficiency in the troposphere; stratospheric chemistry and ozone depletion; and interactions between atmospheric chemistry, weather, and the climate are welcome. Studies of long-term trends in atmospheric composition are also of interest, where the connection between the cause and effect is elucidated using models. The session is interested in studies that integrate observations from satellites with models to address attribution and predictions. The synergistic use of satellite, suborbital datasets, in-situ and ground-based measurements is encouraged for modeling constraints and verification where applicable. This session also welcome contributions from aircraft in situ measurements made during the numerous missions over the last decades, which have led to a better understanding of the global troposphere and stratosphere, sources and types of pollution, and the evolution of greenhouse gases.

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