DOI: 10.1016/j.atmosenv.2014.09.026
Scopus记录号: 2-s2.0-84907080650
论文题名: Formation process of the widespread extreme haze pollution over northern China in January 2013: Implications for regional air quality and climate
作者: Tao M ; , Chen L ; , Xiong X ; , Zhang M ; , Ma P ; , Tao J ; , Wang Z
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 98 起始页码: 417
结束页码: 425
语种: 英语
英文关键词: Extreme pollution
; Haze
; Northern China
; Regional transport
; Satellite
Scopus关键词: Formation process
; Haze
; Haze pollutions
; Northern China
; Regional air quality
; Regional transport
; Satellites
; aerosol formation
; air quality
; atmospheric circulation
; atmospheric pollution
; boundary layer
; CALIPSO
; concentration (composition)
; dust
; loading
; optical depth
; satellite data
; spatial variation
; spatiotemporal analysis
; aerosol
; air pollution
; air quality
; Article
; boundary layer
; China
; city
; climate
; cloud
; dust
; haze
; optical depth
; particulate matter
; plume
; surface property
; ultraviolet radiation
; Beijing [China]
; China
; Hebei
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: In this study, we present a regional insight into characteristics and formation process of the widespread extreme haze pollution in northern China during January of 2013 using integrated satellite observations and ground measurements. Different from common regional pollution, dense haze clouds during the most polluted period not only wandered over northern China for more than one week, but also exhibited large spatial variations with some abrupt peak values in Beijing. High UV Aerosol Index (UVAI) values >2.5 indicate prevalent absorbing aerosols in upper part of the haze clouds. CALIPSO vertical detection shows that the haze layers were more than 3 km thick, with strong extinction within 1 km near surface and elevated dust layers above. Top of the more than 2 km thick dust plumes can reach 5 km, having a substantial contribution to the haze clouds. Movement of high aerosol loading regions with aerosol optical depth (AOD) exceeding 2.0 shows a notable superposition of different pollution processes within boundary layer, which largely enhanced the haze pollution. Peak value of PM10 in industrial cities of Hebei was around 1000 μg/m3, almost twice of that in usual pollution. Subsequent peak values of PM10 from south to north confirm the intense regional transport, which could be the main cause of sudden record-breaking particle concentration in Beijing. Anomalous weather conditions facilitated the unusual heavy pollution became extremely severe. Our results indicate close connections between variation of atmospheric circulation and the regional heavy pollution over northern China. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80524
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China; NOAA/NESDIS/Center for Satellite Applications and Research, College Park, MD, United States; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Tao M,, Chen L,, Xiong X,et al. Formation process of the widespread extreme haze pollution over northern China in January 2013: Implications for regional air quality and climate[J]. Atmospheric Environment,2014-01-01,98