干旱区生态环境知识资源中心(Arid): Unmanned Aerial Vehicle Observations of the Vertical Distribution of Particulate Matter in the Surface Layer of the Taklimakan Desert in China

Arid

DOI	10.3390/atmos11090980
	Unmanned Aerial Vehicle Observations of the Vertical Distribution of Particulate Matter in the Surface Layer of the Taklimakan Desert in China
	Jin, Lili; He, Qing; Jiang, Hong; Xiao, Junan; Zhao, Quanwei; Zhou, Sasa; Li, Zhenjie; Zhao, Jiawei
通讯作者	He, Q
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2020
卷号	11 期号:9
英文摘要	Field observations made with unmanned aerial vehicles of the particulate matter (PM) concentration from the ground to a height of 500 m were conducted at Xiaotang and Tazhong in the Taklimakan Desert (TD), China, from 7 to 15 November 2019. The vertical structures of the PM concentrations were studied. Pulsed lidar observations showed that dust aerosols in the TD can reach heights of 4 km. Within 500 m above the ground, the PM1.0, PM2.5, and PM(10)concentrations were <100, <201, and <764 mu g center dot m(-3), respectively, in the TD. On days containing sand-blowing periods (e.g., at 18:00 on 11 November), the PM1.0, PM2.5, and PM(10)concentrations were 10-17.7 times higher than on clear days. The northern margin of the TD (Xiaotang) was dominated by fine particles, while the hinterland (Tazhong) was dominated by coarse particles, because there was sparse vegetation around Xiaotang and the surface was sand and clay, while there was no vegetation around Tazhong and the surface was sand. During floating dust periods, the boundary layer was dominated by fine particles. The average PM1.0/PM(2.5)ratios were 0.25-0.65 and 0.40-0.80 at Tazhong and Xiaotang, respectively, while, during sand blowing periods, these ratios were 0.40-0.55 and 0.40-0.45, respectively. The critical condition in the atmospheric boundary layer for PM concentration was revealed with the enhanced momentum flux and sensible heat flux up to 0.52 kg center dot m(-1)center dot s(-2), 0.69 m center dot s(-1), and 6.7 W center dot m(2), respectively, and the low mixed layer was high in the lower atmosphere.
英文关键词	particulate matter (PM) concentrations vertical distribution unmanned aerial vehicle Taklimakan Desert
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000580073200001
WOS关键词	PEARL RIVER-DELTA ; ATMOSPHERIC BOUNDARY-LAYER ; AEROSOL ; DUST ; POLLUTION ; PM2.5 ; EXTINCTION
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326931
作者单位	[Jin, Lili; He, Qing; Zhao, Quanwei; Zhou, Sasa; Zhao, Jiawei] China Meteorol Adm, Inst Desert Meteorol, Taklimakan Desert Meteorol Field, Expt Stn CMA, Urumqi 830002, Peoples R China; [Jin, Lili] Yunnan Univ, Dept Atmospher Sci, Kunming 650500, Yunnan, Peoples R China; [Jiang, Hong; Xiao, Junan] Xinjiang Meteorol Bur, Urumqi 830002, Peoples R China; [Li, Zhenjie] Lincang Meteorol Bur Yunnan Prov, Lincang 677099, Peoples R China
推荐引用方式 GB/T 7714	Jin, Lili,He, Qing,Jiang, Hong,et al. Unmanned Aerial Vehicle Observations of the Vertical Distribution of Particulate Matter in the Surface Layer of the Taklimakan Desert in China[J],2020,11(9).
APA	Jin, Lili.,He, Qing.,Jiang, Hong.,Xiao, Junan.,Zhao, Quanwei.,...&Zhao, Jiawei.(2020).Unmanned Aerial Vehicle Observations of the Vertical Distribution of Particulate Matter in the Surface Layer of the Taklimakan Desert in China.ATMOSPHERE,11(9).
MLA	Jin, Lili,et al."Unmanned Aerial Vehicle Observations of the Vertical Distribution of Particulate Matter in the Surface Layer of the Taklimakan Desert in China".ATMOSPHERE 11.9(2020).