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Impact of Mongolian Plateau versus Tibetan Plateauon the westerly jet over North Pacific Ocean
Shi,ZG(Shi,Zhengguo); Liu,XD(Liu,Xiaodong); Liu,YM(Liu,Yimin); Sha,YY(Sha,Yingying); Xu,TT(Xu,Tingting)
2014-06
发表期刊Climate Dynamics
卷号44期号:2015页码:3067-3076
文章类型期刊论文
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.

关键词Mongolian Plateau Westerly Jet Stationaryplanetary Wave Tibetan Plateau Numerical Simulation
DOI10.1007/s00382-014-2217-2
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9473
专题古环境研究室
推荐引用方式
GB/T 7714
Shi,ZG,Liu,XD,Liu,YM,et al. Impact of Mongolian Plateau versus Tibetan Plateauon the westerly jet over North Pacific Ocean[J]. Climate Dynamics,2014,44(2015):3067-3076.
APA Shi,ZG,Liu,XD,Liu,YM,Sha,YY,&Xu,TT.(2014).Impact of Mongolian Plateau versus Tibetan Plateauon the westerly jet over North Pacific Ocean.Climate Dynamics,44(2015),3067-3076.
MLA Shi,ZG,et al."Impact of Mongolian Plateau versus Tibetan Plateauon the westerly jet over North Pacific Ocean".Climate Dynamics 44.2015(2014):3067-3076.
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