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题名: Comparison of the impact of two types of El Nino ontropical cyclone genesis over the South China Sea
作者: Wang, X ; Zhou, W ; Li, CY ; Wang, DX
通讯作者: wenzhou@cityu.edu.hk
关键词: warm pool and cold tongue El Nino ; tropical cyclone ; South China Sea
刊名: INTERNATIONAL JOURNAL OF CLIMATOLOGY
发表日期: 2014
卷: 34, 期:8, 页:2651-2660
收录类别: sci
部门归属: [Wang, Xin ; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China ; [Zhou, Wen] City Univ Hong Kong, Sch Energy & Environm, Guy Carpenter Asia Pacific Climate Impact Ctr, Kowloon, Hong Kong, Peoples R China ; [Li, Chongyin] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China
项目归属: LTO
资助者: National Basic Research Program ('973' Program) of China [2011CB403500]; National Natural Science Foundation of China [41376025]; City University of Hong Kong [7002780]
摘要: This study examines the impact of the cold tongue (CT) El Nino and the warm pool (WP) El Nino on tropical cyclone (TC) genesis over the South China Sea (SCS) from 1965 to 2010. During Sept-Oct-Nov (SON), the TC genesis exhibits clear interannual variability. SON TC genesis is significantly related with the WP Nino index, but not with the CT Nino index. It is found that in the past two decades the SCS TC genesis varies coherently with the WP Nino index on a timescale of approximately 4years, which is in accordance with the recent increase in WP El Nino events. The distinctly different atmospheric teleconnection patterns related to the CT and WP El Nino over the SCS are responsible for these relationships. CT El Nino can induce anticyclone anomalies over the SCS and the western tropical Pacific WP. However, WP El Nino can result in dipolar patterns with anticyclone anomalies over the SCS and cyclone anomalies over the western tropical Pacific WP at low- and mid-level. These WP El Nino-related large-scale circulation anomalies enlarge the low-level northerlies over the SCS. This in turn enhances the vertical wind shear and thus suppresses TC genesis over the SCS.
原文出处: 查看原文
WOS记录号: WOS:000337667100009
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10538
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Wang, X; Zhou, W; Li, CY; Wang, DX.Comparison of the impact of two types of El Nino ontropical cyclone genesis over the South China Sea,INTERNATIONAL JOURNAL OF CLIMATOLOGY,2014,34(8):2651-2660
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