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学科主题: Geosciences, Multidisciplinary
题名: Decadal variability of twentieth-century El Nino and La Nina occurrence from observations and IPCC AR4 coupled models
作者: Wang, X ; Wang, DX ; Zhou, W
通讯作者: dxwang@scsio.ac.cn
刊名: GEOPHYSICAL RESEARCH LETTERS
发表日期: 2009
卷: 36, 页:-
收录类别: sci
部门归属: [Wang, Xin; Wang, Dongxiao] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China; [Zhou, Wen] City Univ Hong Kong, Guy Carpenter Asia Pacific Climate Impact Ctr, Hong Kong, Hong Kong, Peoples R China
项目归属: LED
摘要: This study investigates the decadal variability of El Nino and La Nina occurrence in observations and examines that variability in a set of 20th Century climate simulations (20C3M) of coupled general circulation models (CGCMs) in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4). Wavelet analysis reveals that the observed frequency of El Nino events displays significant decadal variability with a period of about 12 years during 1920-1940, whereas the frequency of La Nina events shows significant decadal variations with a spectral peak at 16 years throughout the 20th century. Moreover, the frequencies of El Nino and La Nina events are influenced by different factors that are responsible for planetary teleconnections. The frequency of El Nino events is related the Atlantic Multidecadal Oscillation (AMO), while that of the La Nina events is associated with the Pacific Decadal Oscillation (PDO). Among the 15 IPCC AR4 CGCMs surveyed, csiro and miroc_medres CGCMs can reproduce the decadal variability of ENSO activity, and simulate partly its relationship with the Pacific and north Atlantic SSTa. These results will help us to further understand the important roles of the North Atlantic and North Pacific in ENSO variations. Citation: Wang, X., D. Wang, and W. Zhou (2009), Decadal variability of twentieth-century El Nino and La Nina occurrence from observations and IPCC AR4 coupled models, Geophys. Res. Lett., 36, L11701, doi: 10.1029/2009GL037929.
原文出处: 查看原文
WOS记录号: WOS:000266741500002
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6113
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Wang, X; Wang, DX; Zhou, W.Decadal variability of twentieth-century El Nino and La Nina occurrence from observations and IPCC AR4 coupled models,GEOPHYSICAL RESEARCH LETTERS,2009,36():-
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