气候变化领域集成服务门户(CCPortal): Observation of aerosol size distribution and new particle formation under different air masses arriving at the northwesternmost South Korean island in the Yellow Sea

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DOI	10.1016/j.atmosres.2021.105537
	Observation of aerosol size distribution and new particle formation under different air masses arriving at the northwesternmost South Korean island in the Yellow Sea
	Park J.-U.; Kim H.-J.; Choi J.; Park J.-S.; Heo J.; Kim S.-W.
发表日期	2021
ISSN	0169-8095
卷号	255
英文摘要	Particle number size distribution (PNSD) was measured with scanning mobility particle sizers from January 2014 to December 2016 at the Baengnyeong-do Comprehensive Monitoring Observatory, located on a rural island between China and the Korean Peninsula. Five different typical air mass transport pathway types were identified using the fuzzy c-means clustering method. Aerosols from the Shandong Province (Type 3) and South Korea (Seoul Metropolitan Area; Type 4) generally showed larger modal diameters than those transported from Mongolia and West Manchuria through the free troposphere (Type 1), which is attributable to the coagulation and condensational growth of preexisting particles. New particle formation (NPF) events, identified from the first mode of cyclostationary empirical orthogonal function analysis of the PNSD were observed in 42.2% (strong NPF [16.9%], weak NPF [25.3%]) of the days included in this study. Strong NPF events were frequently observed from October to March under the influence of pristine free tropospheric air masses transported along the Type 1 pathway, which can be characterized as NPF supported by meteorological conditions and a small condensation sink (3.77 × 10−3 s−1) under a limited precursor gas supply (i.e., SO2). Some occasional strong NPF events occurred under the influence of Type 3 air masses, primarily in spring (April to May), with a relatively high particle growth rate (6.95 nm h−1) and condensation sink (6.74 × 10−3 s−1), attributed to the relatively high preexisting particle concentration and abundant gaseous precursors. © 2021 The Authors
英文关键词	Air mass classification; Baengnyeong Island; CSEOF; Fuzzy c-means clustering; NPF
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236806
作者单位	School of Earth and Environmental Sciences, Seoul National University, Seoul, 08826, South Korea; National Institute of Environmental Research, Incheon, 22689, South Korea
推荐引用方式 GB/T 7714	Park J.-U.,Kim H.-J.,Choi J.,et al. Observation of aerosol size distribution and new particle formation under different air masses arriving at the northwesternmost South Korean island in the Yellow Sea[J],2021,255.
APA	Park J.-U.,Kim H.-J.,Choi J.,Park J.-S.,Heo J.,&Kim S.-W..(2021).Observation of aerosol size distribution and new particle formation under different air masses arriving at the northwesternmost South Korean island in the Yellow Sea.Atmospheric Research,255.
MLA	Park J.-U.,et al."Observation of aerosol size distribution and new particle formation under different air masses arriving at the northwesternmost South Korean island in the Yellow Sea".Atmospheric Research 255(2021).