Comprehensive study of regional haze in the North China Plain with synergistic measurement from multiple mobile vehicle-based lidars and a lidar network

doi:10.1016/j.scitotenv.2020.137773

	Comprehensive study of regional haze in the North China Plain with synergistic measurement from multiple mobile vehicle-based lidars and a lidar network
	Lv, Lihui 2; Xiang, Yan 2; Zhang, Tianshu 2,3; Chai, Wenxuan 1; Liu, Wenqing 3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-06-15
卷号	721
关键词	Aerosol Lidar Regional transport Boundary layer North China Plain
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.137773
通讯作者	Lv, Lihui(lhlv@ahu.edu.cn)
英文摘要	Recently, haze pollution has emerged as a regional characteristic that needs to be monitored and mitigated sensibly in China, particularly in the North China Plain (NCP). Clarifying the distribution and source characteristics of haze is necessary to better understand its formation mechanism on a regional scale. In this study, a comprehensive study of regional haze using synergistic measurement from multiple mobile vehicle-based lidars, a ground-based lidar network, and in suit instruments is presented. To investigate the distribution and source characteristics of regional haze in the NCP during the winter of 2017, simultaneous measurements of aerosol under different wind conditions are conducted. The regional distribution characteristics of the aerosol were observed using three sets of mobile vehicle-based lidars, and the source characteristics were achieved using an analysis of transport flux (with the ground-based lidar network and the WRF-Chem model). High aerosol extinction was observed on the southwest pathway under a southern wind. Backward trajectories also indicated that the air masses at 500 m were primarily from the southwest. The transport flux at the boundary of Beijing (BJ) and Baoding (BD) on the southwest pathway was calculated. Below 500 m, the transport flux from BD to BJ was positive under a southern wind and negative under a northern wind. In addition to the transport layer below 500 m, an upper transport layer was observed both on November 6, 2017 and January 15, 2018. The upper transport layer from 500 m to 1500 m on November 6, 2017 was obviously noticeable, which decreased dramatically with a maximum transport flux of 539.53 mu g m(2) s. The significant transport layer at 1250 m with a maximum flux of 614.93 mu g m(2) s was observed on January 15, 2018, while it had no impact on the ground because it had not yet fallen. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	Natural Science Foundation of Anhui Province[1908085QD170] ; Natural Science Foundation of Anhui Province[1908085QD160] ; National Key Project of MOST[2017YFC0213002] ; National Key Project of MOST[2018YFC0213101] ; National Key Project of MOST[2016YFC0200401] ; Doctoral Scientific Research Foundation of Anhui University[Y040418191] ; Key Project Foundation of Natural Science Research in Universities of Anhui Province[KJ2019A0039] ; Major Science and Technology Project of Anhui Province[18030801111]
WOS关键词	AEROSOL OPTICAL-PROPERTIES ; TIANJIN-HEBEI REGION ; EXTINCTION COEFFICIENT ; VERTICAL-DISTRIBUTION ; PARTICLE EXTINCTION ; MASS CONCENTRATION ; CLUSTER-ANALYSIS ; RIVER DELTA ; RAMAN LIDAR ; TRANSPORT
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000535467800002
资助机构	Natural Science Foundation of Anhui Province ; National Key Project of MOST ; Doctoral Scientific Research Foundation of Anhui University ; Key Project Foundation of Natural Science Research in Universities of Anhui Province ; Major Science and Technology Project of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103161]
专题	中国科学院合肥物质科学研究院
通讯作者	Lv, Lihui
作者单位	1.China Natl Environm Monitoring Ctr, Beijing 100012, Peoples R China 2.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Lv, Lihui,Xiang, Yan,Zhang, Tianshu,et al. Comprehensive study of regional haze in the North China Plain with synergistic measurement from multiple mobile vehicle-based lidars and a lidar network[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,721.
APA	Lv, Lihui,Xiang, Yan,Zhang, Tianshu,Chai, Wenxuan,&Liu, Wenqing.(2020).Comprehensive study of regional haze in the North China Plain with synergistic measurement from multiple mobile vehicle-based lidars and a lidar network.SCIENCE OF THE TOTAL ENVIRONMENT,721.
MLA	Lv, Lihui,et al."Comprehensive study of regional haze in the North China Plain with synergistic measurement from multiple mobile vehicle-based lidars and a lidar network".SCIENCE OF THE TOTAL ENVIRONMENT 721(2020).