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https://doi.org/10.5194/acp-2020-390
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2020-390
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  08 May 2020

08 May 2020

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A revised version of this preprint was accepted for the journal ACP.

Atmospheric new particle formation characteristics in the Arctic as measured at Mount Zeppelin, Svalbard, from 2016 to 2018

Haebum Lee1, KwangYul Lee1, Chris Rene Lunder2, Radovan Krejci3, Wenche Aas2, Jiyeon Park4, Ki-Tae Park4, Bang Yong Lee4, Young-Jun Yoon4, and Kihong Park1 Haebum Lee et al.
  • 1School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagiro, Buk-gu, Gwangju 61005, Republic of Korea
  • 2Department for Atmospheric and Climate Research, NILU – Norwegian Institute for Air Research, Kjeller, Norway
  • 3Department of Environmental Sciences and the Bolin Centre for Climate Research, Stockholm University, Stockholm, SE-106 91, Sweden
  • 4Korea Polar Research Institute, 26, Songdo Mirae-ro, Yeonsu-Gu, Incheon, Korea

Abstract. We conducted continuous measurement of nanoparticles down to 3 nm size in the Arctic at Mount Zeppelin, Ny Ålesund, Svalbard, from 2016 to 2018, providing a size distribution of nanoparticles (3–60 nm) with a higher resolution than ever before. A significant number of nanoparticles as small as 3 nm were often observed during new particle formation (NPF), particularly in summer, suggesting that these were likely produced near the site rather than being transported from other regions after growth. The average NPF frequency per year was 24 % having the highest percentage in August (63 %). The average particle formation rate (J) for 3–7 nm particles was 0.1 cm−3 s−1 and the average growth rate (GR) was 2.62 nm h−1. Although NPF frequency in the Arctic was comparable to that in continental areas, the J and GR were much lower. The number of nanoparticles increased more frequently when air mass originated over the south and southwest ocean regions; this pattern overlapped with regions having strong chlorophyll-α concentration and dimethyl sulfide (DMS) production capacity (southwest ocean), and was also correlated with increased daily NH3 concentration, suggesting that marine biogenic and animal sources were responsible for gaseous precursors to NPF. Our results show that previously developed NPF occurrence criteria (low loss rate and high cluster growth rate favor NPF) are also applicable to NPF in the Arctic.

Haebum Lee et al.

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Short summary
New particle formation (NPF) contributes to enhance the number of particles in the ambient atmosphere, affecting local air quality and CCN concentration. This study investigated NPF characteristics in the Arctic and showed that although formation and growth rates of nanoparticles in the Arctic were much lower than those in continental areas. NPF occurrence frequency was comparable, and that marine biogenic and animal sources played important roles in production of condensing vapors for NPF.
New particle formation (NPF) contributes to enhance the number of particles in the ambient...
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