A dynamical and numerical study of the effects of the topography of the Tibetan Plateau and westerly wind speed on the East Asian Trough

doi:10.1002/joc.7229

	A dynamical and numerical study of the effects of the topography of the Tibetan Plateau and westerly wind speed on the East Asian Trough
	Liang, Zhaoming 4,5; Xu, Pengcheng 3; Gao, Shouting 1,2; Zuo, Qunjie 2
刊名	INTERNATIONAL JOURNAL OF CLIMATOLOGY
	2021-06-10
页码	15
关键词	dynamical analysis East Asian Trough Tibetan Plateau topography westerly wind speed
ISSN号	0899-8418
DOI	10.1002/joc.7229
英文摘要	The effects of the topography of the Tibetan Plateau (TP) and westerly wind speed on the East Asian Trough (EAT) is discussed with analysis using a dynamical model, and verified with numerical experiments based on real cases. The dynamical model utilizes a complex terrain function to approximate the TP topography, and derives a stream function generated by the TP terrain. The numerical experiments used for the verification consider the influence of different TP terrain heights and westerly wind speeds. The results show that the topography of the TP has a prominent contribution to the intensity of the EAT, but little effect on its position. The topography of the TP in the westerly winds causes a low-pressure trough to its east, which promotes a deepening of the EAT to the east side of the TP. In contrast, in the context of the TP, westerly wind speed has an important influence on the position of the EAT, but a minor impact on the deepening of the EAT. A larger westerly wind speed causes a more eastern position of the EAT. These findings indicate that the combination of large-scale topography and westerly wind speed plays a key role in the evolution of the EAT, in the terms of intensity and position.
资助项目	National Natural Science Foundation of China[41705026] ; National Natural Science Foundation of China[U1433202] ; National Natural Science Foundation of China[91437215] ; National Natural Science Foundation of China[41875056] ; National Natural Science Foundation of China[41965010]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	WILEY
WOS记录号	WOS:000659395100001
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/58815]
专题	中国科学院数学与系统科学研究院
通讯作者	Liang, Zhaoming; Xu, Pengcheng
作者单位	1.Guizhou Key Lab Mt Climate & Resource, Guiyang, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, 55 Zhongguancun East St, Beijing 100190, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 5.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, 46 Zhongguancun South St, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Liang, Zhaoming,Xu, Pengcheng,Gao, Shouting,et al. A dynamical and numerical study of the effects of the topography of the Tibetan Plateau and westerly wind speed on the East Asian Trough[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2021:15.
APA	Liang, Zhaoming,Xu, Pengcheng,Gao, Shouting,&Zuo, Qunjie.(2021).A dynamical and numerical study of the effects of the topography of the Tibetan Plateau and westerly wind speed on the East Asian Trough.INTERNATIONAL JOURNAL OF CLIMATOLOGY,15.
MLA	Liang, Zhaoming,et al."A dynamical and numerical study of the effects of the topography of the Tibetan Plateau and westerly wind speed on the East Asian Trough".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2021):15.