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Seasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula

Cited 20 time in wos
Cited 21 time in scopus

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dc.contributor.authorKim, Jaeseok-
dc.contributor.authorLee, Bang Yong-
dc.contributor.authorPark, Ki-Tae-
dc.contributor.authorChoi, Jin Hee-
dc.contributor.authorKang, Hyo Jin-
dc.contributor.authorGim, Yeontae-
dc.contributor.authorYoon, Young Jun-
dc.coverage.spatialAntarctic Peninsula-
dc.coverage.spatialAntarctica-
dc.coverage.spatialPacific Ocean-
dc.coverage.spatialPacific Ocean-
dc.coverage.spatialWest Antarctica-
dc.coverage.spatialKing Sejong Station-
dc.date.accessioned2018-03-20T13:37:44Z-
dc.date.available2018-03-20T13:37:44Z-
dc.date.issued2017-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6010-
dc.description.abstractSeasonal variability in the physical characteristics of aerosol particles sampled from the King Sejong Station in the Antarctic Peninsula was investigated over the period between March 2009 and February 2015. Clear seasonal cycles for the total particle concentration (CN) were observed. The mean monthly concentration of particles larger than 2.5 nm (CN2.5) was highest during the austral summer, with an average value of 1080.39 ± 595.05 cm-3, and lowest during the austral winter, with a mean value of 197.26 ± 71.71 cm-3. The seasonal patterns in the concentrations of cloud condensation nuclei (CCN) and CN coincide, with both concentrations being at a minimum in winter and maximum in summer. The measured CCN spectra were approximated by fitting a power law function relating the number of CCN for a given supersaturation (SS) to each SS value, with fitting coefficients C and kT. The values for C varied from 6.35 cm-3 to 837.24 cm-3, with a mean of 171.48 ± 62.00 cm-3. The values for kT ranged from 0.07 to 2.19, with a mean of 0.41 ± 0.10. In particular, the kT values during the austral summer were higher than those during the winter, indicating that aerosol particles are more sensitive to SS changes during summer. Furthermore, the annual mean hygroscopicity parameter, kappa, was estimated as 0.15±0.05, for a SS of 0.4%. The effects of the origin and pathway travelled by the air mass on the physical characteristics of the aerosol particles were also determined. The modal diameter of aerosol particles originating in the South Pacific Ocean showed a seasonal variation varying from 0.023 μm in winter to 0.034 μm in summer for the Aitken mode, and from 0.086 μm in winter to 0.109 μm in summer for the accumulation mode-
dc.languageEnglish-
dc.subjectMeteorology & Atmospheric Sciences-
dc.titleSeasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula-
dc.title.alternative세종기지 대기중 입자의 계절적인 물리 특성-
dc.typeArticle-
dc.identifier.bibliographicCitationKim, Jaeseok, et al. 2017. "Seasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula". <em>ATMOSPHERIC CHEMISTRY AND PHYSICS</em>, 17(21): 12985-12999.-
dc.citation.titleATMOSPHERIC CHEMISTRY AND PHYSICS-
dc.citation.volume17-
dc.citation.number21-
dc.identifier.doi10.5194/acp-17-12985-2017-
dc.citation.startPage12985-
dc.citation.endPage12999-
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2015:7.143-
dc.subject.keywordCloud Condensation Nuclei-
dc.subject.keywordKing Sejong Station-
dc.subject.keywordaerosol-
dc.identifier.localId2017-0185-
dc.identifier.scopusid2-s2.0-85032892197-
dc.identifier.wosid000414373700001-
Appears in Collections  
2017-2018, Investigation for the cause of east-west different climate responses in Antarctica (17-18) / Choi, Taejin; Kim, Seong-Joong (PE17010; PE18010)
2016-2018, Arctic permafrost environment change monitoring and prediction method developments (16-18) / Lee, Bang Yong (PN16081; PN17081; PN18081)
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