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学科主题: Meteorology & Atmospheric Sciences
题名: The natural oscillation of two types of ENSO events based on analyses of CMIP5 model control runs
作者: Xu, K ; Su, JZ ; Zhu, CW
通讯作者: sujz@cams.cma.gov.cn
关键词: EP- and CP-ENSO ; CMIP5 ; interannual/decadal oscillation ; natural variability
刊名: ADVANCES IN ATMOSPHERIC SCIENCES
发表日期: 2014
卷: 31, 期:4, 页:801-813
收录类别: sci
部门归属: [Xu Kang] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China ; [Xu Kang ; Su Jingzhi ; Zhu Congwen] Chinese Acad Meteorol Sci, Inst Climate Syst, Beijing 100081, Peoples R China ; [Xu Kang] Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ, Nanjing 210044, Jiangsu, Peoples R China
项目归属: LTO
资助者: National Natural Science Foundation of China [41221064, 41376020, 41376025, 90711003]; Chinese Academy of Meteorological Science [2012Z001, 2013Z002]; Chinese Academy of Sciences [XDA05090400]; Jiangsu Collaborative Innovation Center for Climate Change
摘要: The eastern- and central-Pacific El Nio-Southern Oscillation (EP- and CP-ENSO) have been found to be dominant in the tropical Pacific Ocean, and are characterized by interannual and decadal oscillation, respectively. In the present study, we defined the EP- and CP-ENSO modes by singular value decomposition (SVD) between SST and sea level pressure (SLP) anomalous fields. We evaluated the natural features of these two types of ENSO modes as simulated by the pre-industrial control runs of 20 models involved in phase five of the Coupled Model Intercomparison Project (CMIP5). The results suggested that all the models show good skill in simulating the SST and SLP anomaly dipolar structures for the EP-ENSO mode, but only 12 exhibit good performance in simulating the tripolar CP-ENSO modes. Wavelet analysis suggested that the ensemble principal components in these 12 models exhibit an interannual and multi-decadal oscillation related to the EP- and CP-ENSO, respectively. Since there are no changes in external forcing in the pre-industrial control runs, such a result implies that the decadal oscillation of CP-ENSO is possibly a result of natural climate variability rather than external forcing.
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WOS记录号: WOS:000336262200007
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10537
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Xu, K; Su, JZ; Zhu, CW.The natural oscillation of two types of ENSO events based on analyses of CMIP5 model control runs,ADVANCES IN ATMOSPHERIC SCIENCES,2014,31(4):801-813
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