干旱区生态环境知识资源中心(Arid): Optical Properties and Source Analysis of Aerosols over a Desert Area in Dunhuang,Northwest China

Arid

	Optical Properties and Source Analysis of Aerosols over a Desert Area in Dunhuang,Northwest China
	Ma Yongjing; Xin Jinyuan; Ma Yining; Kong Lingbin; Zhang Kequan; Zhang Wenyu; Wang Yuesi; Wang Xiuqin; Zhu Yongfeng
来源期刊	Advances in Atmospheric Sciences
ISSN	0256-1530
出版年	2017
卷号	34 期号:8 页码:1017-1026
英文摘要	Aerosol observational data for 2012 obtained from Dunhuang Station of CARE-China (Campaign on Atmospheric Aerosol Research Network of China) were analyzed to achieve in-depth knowledge of aerosol optical properties over Dunhuang region. The results showed that the annual average aerosol optical depth (AOD) at 500 nm was 0. 32 0. 06,and the Angstrom exponent (alpha) was 0. 73 0. 27. Aerosol optical properties revealed significant seasonal characteristics. Frequent sandstorms in MAM (March-April-May) resulted in the seasonal maximum AOD,0. 41 0. 04,and a relatively smaller alpha value,0. 44 0. 04. The tourism seasons,JJA (June-July-August) and SON (September-October-November) coincide with serious emissions of small anthropogenic aerosols. While in DJF (December-January-February),the composition of the atmosphere was a mixture of dust particles and polluted aerosols released by domestic heating; the average AOD and alpha were 0. 29 0. 02 and 0. 66 0. 17,respectively. Different air masses exhibited different degrees of influence on the aerosol concentration over Dunhuang in different seasons. During MAM,ranges of AOD (0.11-1.18) and alpha (0.06-0.82) were the largest under the dust influence of northwest-short-distance air mass in the four trajectories. Urban aerosols transported by northwest-short-distance air mass accounted for a very large proportion in JJA and the mixed aerosols observed in SON were mainly conveyed by air masses from the west. In DJF,the similar ranges of AOD and alpha under the three air mass demonstrated the analogous diffusion effects on regional pollutants over Dunhuang.
英文关键词	Dunhuang AOD Angstrom exponent dust aerosol anthropogenic aerosols
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6021586
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335836
作者单位	Ma Yongjing, College of Atmospheric Sciences,Lanzhou University, Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province;;State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Lanzhou, Gansu 730000, China.; Ma Yining, College of Atmospheric Sciences,Lanzhou University, Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province;;State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Lanzhou, Gansu 730000, China.; Kong Lingbin, College of Atmospheric Sciences,Lanzhou University, Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province;;State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Lanzhou, Gansu 730000, China.; Xin Jinyuan, Institute of Atmospheric Physics,Chinese Academy of Sciences, State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry;;lateau Atmosphere and Environment Key Laboratory of Sichuan Province, Beij...
推荐引用方式 GB/T 7714	Ma Yongjing,Xin Jinyuan,Ma Yining,et al. Optical Properties and Source Analysis of Aerosols over a Desert Area in Dunhuang,Northwest China[J],2017,34(8):1017-1026.
APA	Ma Yongjing.,Xin Jinyuan.,Ma Yining.,Kong Lingbin.,Zhang Kequan.,...&Zhu Yongfeng.(2017).Optical Properties and Source Analysis of Aerosols over a Desert Area in Dunhuang,Northwest China.Advances in Atmospheric Sciences,34(8),1017-1026.
MLA	Ma Yongjing,et al."Optical Properties and Source Analysis of Aerosols over a Desert Area in Dunhuang,Northwest China".Advances in Atmospheric Sciences 34.8(2017):1017-1026.