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DOI	10.1016/j.atmosenv.2020.117985
	Synoptic weather and surface ozone concentration in South Korea
	Kim H.C.; Lee D.; Ngan F.; Kim B.-U.; Kim S.; Bae C.; Yoon J.-H.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	Seventeen years (2001–2017) of surface observations and spatial synoptic classification (SSC) data are used to analyze the characteristics of surface ozone concentration according to synoptic weather patterns. While weather conditions are known to play an important role in regional air quality, the extent to which synoptic weather patterns affect the production of high ground-level ozone concentrations has not yet been fully quantified. Using thermal characteristics and geographic origins, the SSC method classifies air masses into six types: dry polar (DP), dry moderate (DM), dry tropical (DT), moist polar (MP), moist moderate (MM), and moist tropical (MT). We link daily maximum 8-h ozone concentrations (MDA8 O3) from 306 monitoring sites to the closest SSC classifications at 17 airport sites and then analyze their association. We find that DM, DT, and MT are commonly associated with high ozone, whereas DT produces ozone with the greatest efficiency, especially high levels of concentration. This finding implies a potentially strong connection between surface ozone and climate change because the occurrence of DT weather has increased by more than three times over the past 50 years in South Korea. Sensitivity tests reveal that mean MDA8 ozone may increase by 3.5% (7.5%) as the DT frequency increases by 200% (300%). The impacts are larger for higher levels of concentration, with 31.7% (63.3%) or more prevalence of the >80 ppb range with the same increased DT frequency. We conclude that synoptic weather and its long-term trends play important roles in the increased surface ozone recently seen in South Korea. © 2020 Elsevier Ltd
关键词	Climate change Ozone Spatial synoptic classification Synoptic weather
语种	英语
scopus关键词	Air quality; Climate change; Tropics; Ground level ozone concentration; Ozone concentration; Regional air quality; Spatial synoptic classification; Surface observation; Surface ozone concentrations; Synoptic weather patterns; Thermal characteristics; Ozone; ozone; air mass; air quality; airport; climate change; concentration (composition); ozone; spatiotemporal analysis; synoptic meteorology; air quality; Article; climate change; meteorology; priority journal; seasonal variation; sensitivity analysis; South Korea; weather; South Korea
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248794
作者单位	Air Resources Laboratory, National Oceanic and Atmospheric Administration, College ParkMD, United States; Cooperative Institute for Satellite Earth System Studies, University of Maryland, College ParkMD, United States; School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, South Korea; Georgia Environmental Protection Division, Atlanta, GA, United States; Department of Environmental and Safety Engineering, Ajou University, Suwon, South Korea; National Air Emission Inventory and Research Center, Cheongju, South Korea
推荐引用方式 GB/T 7714	Kim H.C.,Lee D.,Ngan F.,et al. Synoptic weather and surface ozone concentration in South Korea[J],2021,244.
APA	Kim H.C..,Lee D..,Ngan F..,Kim B.-U..,Kim S..,...&Yoon J.-H..(2021).Synoptic weather and surface ozone concentration in South Korea.ATMOSPHERIC ENVIRONMENT,244.
MLA	Kim H.C.,et al."Synoptic weather and surface ozone concentration in South Korea".ATMOSPHERIC ENVIRONMENT 244(2021).