Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-12985-2017 |
Seasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula | |
Kim, Jaeseok1; Yoon, Young Jun1; Gim, Yeontae1; Kang, Hyo Jin1,2; Choi, Jin Hee1; Park, Ki-Tae1; Lee, Bang Yong1 | |
2017-11-03 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | Seasonal 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 k(T). The values for C varied from 6.35 to 837.24 cm(-3), with a mean of 171.48 +/- 62.00 cm(-3). The values for k(T) ranged from 0.07 to 2.19, with a mean of 0.41 +/- 0.10. In particular, the k(T) 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 mu m in winter to 0.034 mu m in summer for the Aitken mode, and from 0.086 mu m in winter to 0.109 mu m in summer for the accumulation mode. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414373700001 |
WOS关键词 | CLOUD CONDENSATION NUCLEI ; SIZE DISTRIBUTIONS ; BLACK CARBON ; CHEMICAL-COMPOSITION ; HYGROSCOPIC GROWTH ; MCMURDO STATION ; CCN ACTIVITY ; SOUTH-POLE ; DOME-C ; FEATURES |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20542 |
专题 | 地球科学 |
作者单位 | 1.Korea Polar Res Inst, 26 Songdomirae Ro, Incheon 21990, South Korea; 2.UST, 217 Gajeong Ro, Daejeon 34113, South Korea |
推荐引用方式 GB/T 7714 | Kim, Jaeseok,Yoon, Young Jun,Gim, Yeontae,et al. Seasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(21). |
APA | Kim, Jaeseok.,Yoon, Young Jun.,Gim, Yeontae.,Kang, Hyo Jin.,Choi, Jin Hee.,...&Lee, Bang Yong.(2017).Seasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(21). |
MLA | Kim, Jaeseok,et al."Seasonal variations in physical characteristics of aerosol particles at the King Sejong Station, Antarctic Peninsula".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.21(2017). |
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