气候变化领域集成服务门户(CCPortal): Updating Chinese SO2 emissions with surface observations for regional air-quality modeling over East Asia

CCPortal

DOI	10.1016/j.atmosenv.2020.117416
	Updating Chinese SO2 emissions with surface observations for regional air-quality modeling over East Asia
	Bae C.; Kim H.C.; Kim B.-U.; Kim Y.; Woo J.-H.; Kim S.
发表日期	2020
ISSN	1352-2310
卷号	228
英文摘要	Anthropogenic emissions in East Asia have changed dramatically in recent years. To measure these changing emissions in support of air-quality modeling, we developed a top-down emission update system using surface observations and a geographical information system spatial-allocation technique. We deploy a data-processing system to construct adjustment factors to prefecture-level SO2 emissions by comparing surface and modeled observations. A case study is conducted over East Asia for 2016 in which we update Chinese SO2 emissions using measurements from around 1500 surface monitoring sites. Model simulations using updated SO2 emissions are improved relative to the existing simulation system (e.g., R = 0.23 to R = 0.8), suggesting that the newly designed system provides an efficient, practical forecast solution. Finally, estimated SO2 emissions are compared with existing emission inventories, agreeing well with recent reports of reduced SO2 emissions from Chinese anthropogenic sources. © 2020 Elsevier Ltd
关键词	East Asia air quality SO2 emissions inventory Top-down emission adjustment
语种	英语
scopus关键词	Data handling; Air quality modeling; Anthropogenic emissions; Anthropogenic sources; Data processing systems; Emission inventories; Regional air quality modeling; Surface monitoring; Surface observation; Air quality; air quality; anthropogenic source; detection method; modeling; observational method; sulfur dioxide; air quality; article; Asia; geographic information system; simulation; Far East
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/249219
作者单位	Department of Environmental and Safety Engineering, Ajou University, Suwon, South Korea; Air Resources Laboratory, National Oceanic and Atmospheric Administration, College Park, MD, United States; Cooperative Institute for Satellite Earth System Studies, University of Maryland, College Park, MD, United States; Georgia Environmental Protection Division, Atlanta, GA, United States; Dept. of Advanced Technology Fusion, Konkuk University, Seoul, South Korea
推荐引用方式 GB/T 7714	Bae C.,Kim H.C.,Kim B.-U.,et al. Updating Chinese SO2 emissions with surface observations for regional air-quality modeling over East Asia[J],2020,228.
APA	Bae C.,Kim H.C.,Kim B.-U.,Kim Y.,Woo J.-H.,&Kim S..(2020).Updating Chinese SO2 emissions with surface observations for regional air-quality modeling over East Asia.ATMOSPHERIC ENVIRONMENT,228.
MLA	Bae C.,et al."Updating Chinese SO2 emissions with surface observations for regional air-quality modeling over East Asia".ATMOSPHERIC ENVIRONMENT 228(2020).