With melting sea ice, it is likely that the influence of the oceans on the high Arctic atmosphere will increase. To that end, as part of the Canadian Network on Climate and Aerosols in Remote Environments, an aircraft campaign was conducted in the high Arctic based out of Resolute Bay, Canada in July 2014. Extensive measurements of trace gases, and aerosol and cloud properties were made throughout the marine boundary layer, over frozen sea ice, and to 10,000 feet altitude. Frequent observations of ultrafine particles implied that particle nucleation was occurring especially in very clear air, the aerosol composition had clear signatures of biogenic influence from the ocean, and low-level clouds were common. The interactions of ocean sources with particles and clouds in this pristine environment will be discussed.

Probing the connections between aerosol particles, clouds, and climate in the high Arctic summer

250th National Meeting (2015)

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