气候变化领域集成服务门户(CCPortal): Tracking prevailing dust aerosol over the air pollution in central China with integrated satellite and ground observations

CCPortal

DOI	10.1016/j.atmosenv.2021.118369
	Tracking prevailing dust aerosol over the air pollution in central China with integrated satellite and ground observations
	Tao M.; Gui L.; Li R.; Wang L.; Liang S.; Li Q.; Wang L.; Yu C.; Chen L.
发表日期	2021
ISSN	1352-2310
卷号	253
英文摘要	Besides intense dust storms, downstream transport of dust particles in the extensive deserts of East Asia have been rarely concerned. In this study, we present a comprehensive insight into sources, transport process, and potential influence of the prevalent dust particles in central China during October 2020 based on integrated satellite and ground observations. Although dust events are usually considered concentrated in spring, satellite observations show that dust sources are active during fall. Thick dust layers with high uplifted altitudes at ~5 km are found in their downstream path, which can be carried to northern China and even the Sichuan Basin by predominant northwestern winds at 700 hPa. Despite a lack of air masses directly from active dust sources, dust plumes from both Taklimakan Desert and Gobi deserts can be blown to central China in their transport path or when they have arrived over northern and eastern China. Unlike dust storms with strong winds cleaning local atmospheric pollutants, these floating dust plumes tend to suspend over the air pollution near surface. In particular, the slow dust-pollution mixing process in central China can last for as long as ~3–4 days due largely to the common temperature inversion in fall. Despite a dominant contribution (>50%) in particle pollution, these dust transport with much smaller scales than dust storms can be unnoticeable. Our results suggest that more attention should be paid to the role of these unnoticeable but frequent dust plumes in regional atmospheric environment and climate effects. © 2021 Elsevier Ltd
关键词	Air pollution Central China Dust transport Dust-pollution mixing Satellite
语种	英语
scopus关键词	Air pollution; Arid regions; Mixing; Satellites; Storms; Wind; Central chinas; Down-stream; Dust particle; Dust sources; Dust storm; Dust transport; Dust-pollution mixing; Ground observations; Over the airs; Satellite observations; Dust; aerosol; air mass; atmospheric pollution; desert; dust; dust storm; ground-based measurement; mixing; pollutant source; pollutant transport; satellite altimetry; tracking; aerosol; air pollution; altitude; article; attention; China; cleaning; climate; desert; dust storm; plume; pollutant; spring; China; Gobi Desert; Sichuan Basin; Taklimakan Desert; Xinjiang Uygur
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/248480
作者单位	Laboratory of Critical Zone Evolution, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China; School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; The Ecology and Environment Monitoring Center of Wuhan, Wuhan, 430070, China; State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100101, China
推荐引用方式 GB/T 7714	Tao M.,Gui L.,Li R.,et al. Tracking prevailing dust aerosol over the air pollution in central China with integrated satellite and ground observations[J],2021,253.
APA	Tao M..,Gui L..,Li R..,Wang L..,Liang S..,...&Chen L..(2021).Tracking prevailing dust aerosol over the air pollution in central China with integrated satellite and ground observations.ATMOSPHERIC ENVIRONMENT,253.
MLA	Tao M.,et al."Tracking prevailing dust aerosol over the air pollution in central China with integrated satellite and ground observations".ATMOSPHERIC ENVIRONMENT 253(2021).