DOI: 10.1007/s00382-014-2217-2
Scopus记录号: 2-s2.0-84939893090
论文题名: Impact of Mongolian Plateau versus Tibetan Plateau on the westerly jet over North Pacific Ocean
作者: Shi Z. ; Liu X. ; Liu Y. ; Sha Y. ; Xu T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 44, 期: 2017-11-12 起始页码: 3067
结束页码: 3076
语种: 英语
英文关键词: Mongolian Plateau
; Numerical simulation
; Stationary planetary wave
; Tibetan Plateau
; Westerly jet
英文摘要: Mountains have long been considered to play an important role in the formation of modern climate. Particularly in the Asia-Pacific sector, the existence of Tibetan Plateau (TP) is believed to maintain the stationary planetary wave patterns and to intensify the westerly jet over North Pacific. However, the potential role of Mongolian Plateau (MP) has often been neglected in these studies. With an atmospheric general circulation model, we show that the MP, despite its smaller size, exerts a great influence on the planetary-scale circulation and the subtropical westerly jet. The MP amplifies the meridional thermal gradient at the mid-upper troposphere and thus strengthens the jet, which is primarily facilitated by its high-latitude location. By blocking westerly winds, the MP forces their northern branch further northward, which allows the southward penetration of cold air at the lee side, and intensifies the East Asian trough. In contrast, the impact of the TP itself is not as large as expected. Hence, one should not simply ascribe all the mountain-induced climate change to the TP uplift, because other smaller topography might be also very important. © 2014, Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54124
Appears in Collections: 过去全球变化的重建
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作者单位: State Key Laboratory of Loess Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Shi Z.,Liu X.,Liu Y.,et al. Impact of Mongolian Plateau versus Tibetan Plateau on the westerly jet over North Pacific Ocean[J]. Climate Dynamics,2015-01-01,44(2017-11-12)