Observations of new particle formation and growth in the Canadian Arctic summertime
Abstract
This talk will present observations of new particle formation and growth in the Canadian summertime Arctic. Initial observations took place over a decade ago from an icebreaker in the Canadian Archipelago. More recently, a much more comprehensive suite of observations was part of the NETCARE field program, from both the ship and a research aircraft. Particle growth events were observed frequently throughout the boundary layer, but not above. Substantial growth occurred too, largely by condensation of semi-volatile organic species. These events were geographically widespread and largely associated with marine settings. These results will be placed in the context of other observations of new particle formation in polar settings. Overall, the summertime Arctic marine boundary layer is a favorable environment for new particle formation and growth because it is so clean and because of high levels of ocean productivity that emit both DMS and VOCs.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.A31W2721A
- Keywords:
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- 0305 Aerosols and particles;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0365 Troposphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0368 Troposphere: constituent transport and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE