Observational evidence for the formation of DMS-derived aerosols during Arctic phytoplankton blooms
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- 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
- Park, Ki-Tae
Lee, Bang Yong
Yoon, Young Jun
- Meteorology & Atmospheric Sciences
- Aerosol; Arctic Ocean; Arctic Phytoplankton; DMS
- Issue Date
- 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.
- 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.
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