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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, Zhaoming1,2; Xu, Pengcheng3; Gao, Shouting4,5; Zuo, Qunjie4
2021-06-10
Source PublicationINTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
Pages15
AbstractThe 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.
Keyworddynamical analysis East Asian Trough Tibetan Plateau topography westerly wind speed
DOI10.1002/joc.7229
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000659395100001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/58816
Collection应用数学研究所
Corresponding AuthorLiang, Zhaoming; Xu, Pengcheng
Affiliation1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, 46 Zhongguancun South St, Beijing 100081, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
3.Chinese Acad Sci, Acad Math & Syst Sci, 55 Zhongguancun East St, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China
5.Guizhou Key Lab Mt Climate & Resource, Guiyang, Peoples R China
Recommended Citation
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.
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