Tag Archives: cloud condensation nuclei

Bridging cloud condensation nuclei activity and volatility of oxidized organic aerosol

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Source: Manitou Experimental Forest Observatory

In SOCAAR seminar held on April 6th Dr. Shunsuke Nakao, Assistant Professor at Clarkson University presented a theoretical framework used to study the aging of atmospheric organic aerosol.

Organic aerosol change (i.e. oxidize) as they age in the atmosphere and are nuclei for cloud formation. Having an understanding of the change in cloud condensation nuclei (CCN) activity of organic aerosol as they evolve overtime can be used to identify the impact of organic aerosol on the climate. Continue reading →

Exploring the connections between aerosols and clouds in the high Arctic summer

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Photo credit: Julia Burkart

It’s well known that the Arctic climate is influenced by anthropogenic contributions like heating during the winter and regional sources in the summer. But the chemistry of the aerosol environment and its influence on the cloud formation over the Arctic is less understood. Dr. Julia Burkart and Megan Willis, a postdoctoral fellow and Ph.D. student respectively, at the University of Toronto’s Department of Chemistry presented findings from their NETCARE summer aircraft campaign in Resolute Bay, Nunavut at the SOCAAR Seminar held on November 5. Continue reading →