干旱区生态环境知识资源中心(Arid): Thermodynamic and dynamic behavior in a recent dust precipitation event in north China

Arid

DOI	10.1016/j.apr.2020.12.017
	Thermodynamic and dynamic behavior in a recent dust precipitation event in north China
	Huo, Juan; Chen, Yichen; Lyu, Daren
通讯作者	Chen, YC (corresponding author), Beijing Weather Modificat Off, Beijing 100089, Peoples R China.
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
ISSN	1309-1042
出版年	2021
卷号	12 期号:3 页码:260-273
英文摘要	The dynamic and thermodynamic characteristics of a dust precipitation event that took place on May 11, 2020 in North China are analyzed. With the invasion of cold air from Lake Baikal (107 degrees E, 53 degrees N), the arid area in the southeast of Mongolia (107 degrees-108 degrees E, 47 degrees-48 degrees N) was in a region with a large potential pseudo-equivalent temperature gradient, where interactions between cold and warm air led to instability of the atmospheric stratification, and became the dust source area. Meanwhile, a low-pressure cyclone formed over the area (122.3 degrees E, 47.5 degrees N) to the east of the dust source area. Under the joint action of the westerlies, the cyclone developed and supplied forces to the vertical ascent and transportation of dust. Strong winds carried the dust along the southeast direction to China. As the cyclone strengthened, the cold and humid air from Lake Baikal arrived and supplied water vapor for precipitation over Beijing. On the whole, the low-pressure cyclone provided momentum and water vapor for this dust-precipitation event. It is found that the horizontal helicity belt can be an indicator for the prediction of the dust transport pathway. The quick increase in surface dust concentration to its peak was closely related to the increase in downward movements in the layers above 700 hPa.
英文关键词	Dust Aerosol Transportation Precipitation Dynamics
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000626190300001
WOS关键词	STORM-RELATIVE HELICITY ; MINERAL DUST ; MIDDLE-EAST ; ASIAN DUST ; CLIMATOLOGY ; TRANSPORT ; IMPACTS ; MONSOON ; SUMMER ; WINDS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349652
作者单位	[Huo, Juan; Lyu, Daren] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China; [Huo, Juan; Lyu, Daren] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Chen, Yichen] Beijing Weather Modificat Off, Beijing 100089, Peoples R China
推荐引用方式 GB/T 7714	Huo, Juan,Chen, Yichen,Lyu, Daren. Thermodynamic and dynamic behavior in a recent dust precipitation event in north China[J]. 中国科学院大气物理研究所,2021,12(3):260-273.
APA	Huo, Juan,Chen, Yichen,&Lyu, Daren.(2021).Thermodynamic and dynamic behavior in a recent dust precipitation event in north China.ATMOSPHERIC POLLUTION RESEARCH,12(3),260-273.
MLA	Huo, Juan,et al."Thermodynamic and dynamic behavior in a recent dust precipitation event in north China".ATMOSPHERIC POLLUTION RESEARCH 12.3(2021):260-273.