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Observational evidence for the formation of DMS-derived aerosols during Arctic phytoplankton blooms

Cited 2 time in scopus
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Title
Observational evidence for the formation of DMS-derived aerosols during Arctic phytoplankton blooms
Other Titles
북극 해양 식물플랑크톤에 의한 대기 DMS 기원 에어로졸 입자 형성의 관측적 증거 제시
Authors
Park, Ki-Tae
Shin, Kyung-Hoon
Lee, Bang Yong
Roberto Udisti
Kang, Jung-Ho
Cho, Hee-joo
Park, Kihong
Kim, Min-Seob
Yoon, Young Jun
Jang, Sehyun
Lee, Kitack
Subject
Meteorology & Atmospheric Sciences
Keywords
Aerosol; Arctic Ocean; Arctic Phytoplankton; DMS
Issue Date
2017
Citation
Park, Ki-Tae, et al. 2017. "Observational evidence for the formation of DMS-derived aerosols during Arctic phytoplankton blooms". ATMOSPHERIC CHEMISTRY AND PHYSICS, 17(15): 9665-9675.
Abstract
The connection between marine biogenic dimethyl sulfide (DMS) and the formation of aerosol particles in the Arctic atmosphere was evaluated by analyzing atmospheric DMS mixing ratio, aerosol particle size distribution and aerosol chemical composition data that were concurrently collected at Ny-Alesund, Svalbard (78.5° N, 11.8° E) during April and May 2015. Measurements of aerosol sulfur (S) compounds showed distinct patterns during periods of Arctic haze (April) and phytoplankton blooms (May). Specifically, during the phytoplankton bloom period the contribution of DMS-derived SO42? to the total aerosol SO42? increased by 7-fold compared with that during the proceeding Arctic haze period, and accounted for up to 70% of fine SO42? particles (< 2.5 μm in diameter). The results also showed that the formation of submicron SO42? aerosols was significantly associated with an increase in the atmospheric DMS mixing ratio. More importantly, two independent estimates of the formation of DMS-derived SO42? aerosols, calculated using the stable S isotope ratio and the non sea salt SO42?/methanesulfonic acid ratio, respectively, were in close agreement, providing compelling evidence that the contribution of biogenic DMS to the formation of aerosol particles was substantial during the Arctic phytoplankton bloom period.
URI
http://repository.kopri.re.kr/handle/201206/6057
DOI
http://dx.doi.org/10.5194/acp-17-9665-2017
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