Variations in Atmospheric Composition over Northern Eurasia Regions

Dear Colleagues,

Twenty-five years ago, Prof. Paul Crutzen and I initiated the project TROICA aiming to examine atmospheric composition over the vast territory of Russia using a novel train-laboratory. The project included 15 large-scale campaigns which ended in 2010, and yielded unique information on spatial and temporal variations of concentrations of greenhouse gases, aerosols, ozone depleting and polluting substances, their sources, emissions, and transport. Since that time, new state-of-the-art technologies of ground-based and satellite monitoring have appeared, chemical and transport models have become more sophisticated, and researchers have revealed new findings about atmospheric composition over Northern Eurasia—the region faced with the most pronounced climatic changes. These changes provoke shifts in the atmospheric photochemical system, vary emissions and sinks of greenhouse gases because of permafrost melting, and modulate ecosystem shifts, wildfires, and floods. Traces of anthropogenic activity, like emissions from megacities and industrial clusters, agricultural lands, oil and gas fields, transport and domestic systems, have reached even the most remote areas and influence air quality and optical characteristics, secondary aerosol formation, atmosphere–biosphere exchange, and other processes which are crucial not only for Northern Eurasia, but for the entire Earth system.

I kindly invite researchers, both observers and modelers, to share their knowledge and data on atmospheric composition over Northern Eurasia regions and related topics by submitting papers to the Atmosphere Special Issue “Variations in Atmospheric Composition over Northern Eurasia Regions” in the hope that new connections will appear from complex analyses and new regional and global models constructed in order to explain past, present, and future changes.

Prof. Dr. Georgy Golitsyn
Guest Editor

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