KOPRI Repository

New particle formation events observed at King Sejong Station, Antarctic Peninsula - Part 1: Physical characteristics and contribution to cloud condensation nuclei

Cited 0 time in wos
Cited 1 time in scopus
Metadata Downloads
Title
New particle formation events observed at King Sejong Station, Antarctic Peninsula - Part 1: Physical characteristics and contribution to cloud condensation nuclei
Other Titles
세종기지에서 관측한 입자 형성 part1. 물리특성과 구름응결핵 농도에의 기여
Authors
김재석
Yoon, Young Jun
Gim, Yeontae
Choi, Jin Hee
Kang, Hyo Jin
Park, Ki-Tae
Park, J.
Lee, Bang Yong
Keywords
aerosol; cloud condensation nuclei; nucleation event
Issue Date
2019
Citation
김재석, et al. 2019. "New particle formation events observed at King Sejong Station, Antarctic Peninsula - Part 1: Physical characteristics and contribution to cloud condensation nuclei". ATMOSPHERIC CHEMISTRY AND PHYSICS, 19(1): 7583-7594.
Abstract
The physical characteristics of aerosol particles during particle bursts observed at King Sejong Station in Antarctic Peninsula from March 2009 to December 2016 were analyzed. This study focuses on the seasonal variation in parameters related to particle formation such as the occurrence, formation rate (FR) and growth rate (GR), condensation sink (CS), and source rate of condensable vapor. The number concentrations during new particle formation (NPF) events varied from 1707 cm-3 to 83120 cm-3, with an average of 20649 ± 9290 cm-3, and the duration of the NPF events ranged from 0.6 h to 14.4 h, with a mean of 4.6 ± 1.5 h. The NPF event dominantly occurred during austral summer period (~72%). The measured mean values of FR and GR of the aerosol particles were 2.79 ± 1.05 cm-3 s-1 and 0.68 ± 0.27 nm h-1, respectively showing enhanced rates in the summer season. The mean value of FR at King Sejong Station was higher than that at other sites in Antarctica, at 0.002-0.3 cm-3 s-1, while those of growth rates was relatively similar results observed by precious studies, at 0.4~4.3 nm h-1. The derived average values of CS and source rate of condensable vapor were (6.04 ± 2.74) × 10-3 s-1 and (5.19 ± 3.51) × 104 cm-3 s-1, respectively. The contribution of particle formation to cloud condensation nuclei (CCN) concentration was also investigated. The CCN concentration during the NPF period increased approximately 11% compared with the background concentration. In addition, the effects of the origin and pathway of air masses on the characteristics of aerosol particles during a NPF event were determined. The FRs were similar regardless of the origin and pathway, whereas the GRs of particles originating from the Antarctic Peninsula and the Bellingshausen Sea, at 0.77 ± 0.25 nm h-1 and 0.76 ± 0.30 nm h-1, respectively, were higher than those of particles originating from the Weddell Sea (0.41 ± 0.15 nm h-1).
URI
http://repository.kopri.re.kr/handle/201206/10012
DOI
http://dx.doi.org/10.5194/acp-19-7583-2019
Files in This Item
There are no files associated with this item.
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse