https://repository.kopri.re.kr/handle/201206/5472 2026-03-06T06:11:15Z https://repository.kopri.re.kr/handle/201206/9430 Title: Atmospheric DMS in the Arctic Ocean and Its Relation to Phytoplankton Biomass Authors: Park, Ki-Tae; Ove Hermansen; Lee, Bang Yong; Jang, Sehyun; JAng, Eun-Ho; Yoon, Young Jun; Kim, Tae-Wook; Lee, Kitack Abstract: We recorded and analyzed the atmospheric dimethyl sulfide (DMS) mixing ratios at a remote Arctic location (Svalbard; 78.5°N, 11.8°E) during phytoplankton bloom periods in the years 2010, 2014, and 2015, and found varying regional relationships between the atmospheric DMS and the extent of exposure of the air mass to the phytoplankton biomass in the ocean surrounding the observation site. The DMS production capacity of the Greenland Sea was estimated to be a factor of 3 greater than that of the Barents Sea, whereas the phytoplankton biomass in the Barents Sea was more than 2-fold that in the Greenland Sea. These apparently contradictory results may be induced by the occurrence of a greater abundance of DMS-producing phytoplankton in the Greenland Sea than in the Barents Sea during the phytoplankton bloom periods. 2018-03-07T00:00:00Z https://repository.kopri.re.kr/handle/201206/6057 Title: Observational evidence for the formation of DMS-derived aerosols during Arctic phytoplankton blooms 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 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. 2017-01-01T00:00:00Z