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 |
DOI | 10.1002/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 |
推荐引用方式 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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