Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
doi:10.5194/acp-2016-1161
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
18 Jan 2017
Review status
This discussion paper is under review for the journal Atmospheric Chemistry and Physics (ACP).
Observational evidence for the formation of ocean DMS-derived aerosols during Arctic phytoplankton blooms
Ki-Tae Park1,*, Sehyun Jang1,*, Kitack Lee2, Young Jun Yoon1, Min-Seob Kim3, Kihong Park4, Hee-Joo Cho4, Jung-Ho Kang1, Roberto Udisti5, Bang-Yong Lee1, and Kyung-Hoon Shin6 1Korea Polar Research Institute, Incheon, 21990, Korea
2School of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, 37673, Korea
3Environment Measurement & Analysis Center, National Institute of Environmental Research, Incheon, 22689, Korea
4School of Environmental Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Korea
5Department of Chemistry, University of Florence, Florence, 50016, Italy
6Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan 1588, Korea
*These authors contributed equally to this work.
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 ratios, aerosol particle size distributions and aerosol chemical composition data that were concurrently collected at Ny-Ålesund, 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, accounting for up to 70 % of fine SO42− particles (< 2.5 µm in diameter). The results also showed that a sharp increase in the atmospheric DMS mixing ratio during Arctic phytoplankton bloom events was directly associated with the formation of sub-micrometer SO42− aerosols, and their subsequent growth to climate-relevant particles. Most importantly, two independent estimates of the formation of DMS-derived SO42− aerosols, calculated using the stable S isotope ratio and 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.

Citation: Park, K.-T., Jang, S., Lee, K., Yoon, Y. J., Kim, M.-S., Park, K., Cho, H.-J., Kang, J.-H., Udisti, R., Lee, B.-Y., and Shin, K.-H.: Observational evidence for the formation of ocean DMS-derived aerosols during Arctic phytoplankton blooms, Atmos. Chem. Phys. Discuss., doi:10.5194/acp-2016-1161, in review, 2017.
Ki-Tae Park et al.
Ki-Tae Park et al.
Ki-Tae Park et al.

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Short summary
We evaluated the connection between DMS and the formation of aerosol particles in the Arctic atmosphere by analyzing multiple datasets of atmospheric DMS, aerosol particle size distributions and aerosol chemical composition that were collected at Ny-Ålesund, Svalbard (78.5° N, 11.8° E) during April–May 2015. The key finding from this research is that the contribution of biogenic DMS to the formation of aerosol particles was substantial during the phytoplankton bloom period.
We evaluated the connection between DMS and the formation of aerosol particles in the Arctic...
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