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Contrasting impacts of spring thermal conditions over Tibetan Plateau on late-spring to early-summer precipitation in southeast China
Liu, XD (Liu, Xiaodong)[1]; Wang, Y (Wang, Yi)[1,2]
2011-09-30
发表期刊ATMOSPHERIC SCIENCE LETTERS
卷号12期号:3页码:309-315
文章类型期刊论文
摘要

The thermal condition of the Tibetan Plateau (TP) is considered as an important factor impacting the Asian monsoon. However, how to determine the thermal condition and when and where the Asian monsoon is influenced are still open issues. Here the spring thermal condition of TP is determined using 600 hPa temperatures. For the past 30 years (1979-2008), we have determined three cold years (CY) and three warm years (WY) and conducted contrasting analyses of the subsequent precipitation and large-scale atmospheric dynamics over China. Our analyses indicate that the precipitation is more than normal in late spring (LS) and less than normal in early summer (ES) during WY in southeast China (SEC), while the opposite pattern is true during CY. Further analyses of 850 hPa circulation and tropospheric vertical motion show that the anomalous southerly wind and ascending motion are dominated in SEC during LS for WY and ES for CY, while the anomalous westerly wind and descending motion are dominated during ES for WY and LS for CY. The coherent dynamical structure impacts the monsoon moisture transport and large-scale atmospheric stability, and therefore is the fundamental cause of precipitation anomalies.

关键词thermal conditions Tibetan Plateau Asian summer monsoon atmosphericdynamics atmospheric circulations southeast China precipitation
DOI10.1002/asl.343
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/361006/10308
专题古环境研究室
通讯作者Wang, Y (Wang, Yi)[1,2]
作者单位1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China;
2.Department of Geography and School of Global Studies, University of Sussex, Falmer, Brighton, UK
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GB/T 7714
Liu, XD ,Wang, Y . Contrasting impacts of spring thermal conditions over Tibetan Plateau on late-spring to early-summer precipitation in southeast China[J]. ATMOSPHERIC SCIENCE LETTERS,2011,12(3):309-315.
APA Liu, XD ,&Wang, Y .(2011).Contrasting impacts of spring thermal conditions over Tibetan Plateau on late-spring to early-summer precipitation in southeast China.ATMOSPHERIC SCIENCE LETTERS,12(3),309-315.
MLA Liu, XD ,et al."Contrasting impacts of spring thermal conditions over Tibetan Plateau on late-spring to early-summer precipitation in southeast China".ATMOSPHERIC SCIENCE LETTERS 12.3(2011):309-315.
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