干旱区生态环境知识资源中心(Arid): Vorticity and moisture budget analyses on a plateau vortex that cause an intense rainfall event within the Qaidam Basin

Arid

DOI	10.1002/asl.1040
	Vorticity and moisture budget analyses on a plateau vortex that cause an intense rainfall event within the Qaidam Basin
	Li, Wan-Li; Xia, Ru-Di; Zhong, Qi; Wang, Ya-Qiang
通讯作者	Zhong, Q (corresponding author), China Meteorol Adm, Training Ctr, Beijing 100081, Peoples R China.
来源期刊	ATMOSPHERIC SCIENCE LETTERS
ISSN	1530-261X
出版年	2021
英文摘要	As one of the most seriously arid areas in China, the Qaidam Basin (QB) features a notable growing probability of intense rainfall under global warming. Compared to a normal/humid region, intense rainfall usually results in more severe disasters in an arid area. Considering that few studies focused on intense rainfall within the QB, there is an urgent need to understand the mechanisms governing intense rainfall in this region. A type of Tibetan Plateau vortex (TPV) associated intense rainfall within the QB was investigated in this study, which partly fills the existing research gaps in the field. The main findings are as follows: (a) the intense-rainfall-producing TPV formed and maintained in a favorable background environment which was characterized by a notable upper-level divergence north of a strong upper-level jet and a strong middle-level warm advection ahead of a shortwave trough over the Tibetan Plateau. (b) Vorticity budget indicates that two factors affected the vortex's formation notably, one was the convergence-related vertical stretching, which dominated the vortex's formation and the other was the import of the horizontal transport of anticyclonic vorticity which was the most detrimental factor for the formation of the TPV. Tilting and vertical transport only exerted weak effects on the TPV's formation, since convective activities were relatively weak in this event. (c) Moisture budget shows that the southwestern and southern moisture transport channels, which were mainly driven by the wind field associated with the shortwave trough over the Tibetan Plateau, contributed similar to 70% to the total moisture income of the intense rainfall within the QB. The transport was accomplished primarily through the southern boundary of the QB, with the moisture mainly coming from the Indian Peninsula and Indochina Peninsula.
英文关键词	Heavy rainfall Tibetan Plateau Tibetan Plateau vortex Qaidam Basin
类型	Article ; Early Access
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000661003000001
WOS关键词	TIBETAN PLATEAU ; MESOSCALE VORTICES ; CLIMATOLOGY
WOS类目	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS研究方向	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352072
作者单位	[Li, Wan-Li; Zhong, Qi] China Meteorol Adm, Training Ctr, Beijing 100081, Peoples R China; [Xia, Ru-Di; Wang, Ya-Qiang] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; [Xia, Ru-Di; Wang, Ya-Qiang] Chinese Acad Meteorol Sci, Key Lab Atmospher Chem CMA, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Wan-Li,Xia, Ru-Di,Zhong, Qi,et al. Vorticity and moisture budget analyses on a plateau vortex that cause an intense rainfall event within the Qaidam Basin[J],2021.
APA	Li, Wan-Li,Xia, Ru-Di,Zhong, Qi,&Wang, Ya-Qiang.(2021).Vorticity and moisture budget analyses on a plateau vortex that cause an intense rainfall event within the Qaidam Basin.ATMOSPHERIC SCIENCE LETTERS.
MLA	Li, Wan-Li,et al."Vorticity and moisture budget analyses on a plateau vortex that cause an intense rainfall event within the Qaidam Basin".ATMOSPHERIC SCIENCE LETTERS (2021).