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Connection of sea level variability between the tropical western Pacific and the southern Indian Ocean during recent two decades
Wang TianYu; Du Yan; Zhuang Wei; Wang JinBo; duyan@scsio.ac.cn
2015
Source PublicationSCIENCE CHINA-EARTH SCIENCES
Volume58Issue:8Pages:1387-1396
Subtype1674-7313
AbstractBased on the merged satellite altimeter data and in-situ observations, as well as a diagnosis of linear baroclinic Rossby wave solutions, this study analyzed the rapidly rise of sea level/sea surface height (SSH) in the tropical Pacific and Indian Oceans during recent two decades. Results show that the sea level rise signals in the tropical west Pacific and the southeast Indian Ocean are closely linked to each other through the pathways of oceanic waveguide within the Indonesian Seas in the form of thermocline adjustment. The sea level changes in the southeast Indian Ocean are strongly influenced by the low-frequency westward-propagating waves originated in the tropical Pacific, whereas those in the southwest Indian Ocean respond mainly to the local wind forcing. Analyses of the lead-lag correlation further reveal the different origins of interannual and interdecadal variabilities in the tropical Pacific. The interannual wave signals are dominated by the wind variability along the equatorial Pacific, which is associated with the El Nio-Southern Oscillation; whereas the interdecadal signals are driven mainly by the wind curl off the equatorial Pacific, which is closely related to the Pacific Decadal Oscillation.
Department[Wang TianYu; Du Yan; Zhuang Wei] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Wang TianYu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang JinBo] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA ; LTO
KeywordSea level/Sea Surface Height Waveguide Pathway Tropical Pacific South Indian Ocean Interannual And Interdecadal Variabilities
Subject AreaGeology
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/15060
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorduyan@scsio.ac.cn
Recommended Citation
GB/T 7714
Wang TianYu,Du Yan,Zhuang Wei,et al. Connection of sea level variability between the tropical western Pacific and the southern Indian Ocean during recent two decades[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(8):1387-1396.
APA Wang TianYu,Du Yan,Zhuang Wei,Wang JinBo,&duyan@scsio.ac.cn.(2015).Connection of sea level variability between the tropical western Pacific and the southern Indian Ocean during recent two decades.SCIENCE CHINA-EARTH SCIENCES,58(8),1387-1396.
MLA Wang TianYu,et al."Connection of sea level variability between the tropical western Pacific and the southern Indian Ocean during recent two decades".SCIENCE CHINA-EARTH SCIENCES 58.8(2015):1387-1396.
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