| DOI: | 10.1002/2014GL059370
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| 论文题名: | A Southern Hemisphere booster of super El Niño |
| 作者: | Hong L.-C.; Lin H.; Jin F.-F.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10222
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| EISSN: | 1944-9953
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| 出版年: | 2014
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| 卷: | 41, 期:6 | | 起始页码: | 2142
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| 结束页码: | 2149
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| 语种: | 英语
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| 英文关键词: | A SH booster
; Bjerknes feedback
; El Niño
; ENSO
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| Scopus关键词: | Earth sciences
; Geophysics
; Associated feature
; Bjerknes feedback
; Decadal variations
; Deep convection
; Divergent flow
; ENSO
; Southern Hemisphere
; Westerly winds
; Sea level
; climate feedback
; decadal variation
; El Nino
; sea level pressure
; Southern Hemisphere
; westerly
; Australia
; Pacific Ocean
; Pacific Ocean (Central)
; Pacific Ocean (Tropical)
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| 英文摘要: | A distinct class of El Niño events with extreme magnitude (termed "super El Niño" events in this study) is identified after removing decadal variation. These events occurred in 1972/1973, 1982/1983, and 1997/1998. They are distinguished not only by their size but also by associated features such as a Southern Hemispheric transverse circulation that is not similarly robust in other El Niño events. This transverse circulation is characterized by a low-level equatorward flow, which spins off from a high sea-level-pressure anomaly around Australia and then merges into the deep convection anomalies over the central Pacific, and by an upper-level southward divergent flow, which branches off from the convection center and connects to the subsidence of the Australia high. It is suggested that this transverse cell, peaking in boreal summer, serves as an effective booster during the developing stage of a super El Niño by intensifying tropical Pacific low-level westerly winds. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896550767&doi=10.1002%2f2014GL059370&partnerID=40&md5=a3d710ace782346543ce055781a61d79
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7486
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan
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| Recommended Citation: | |
Hong L.-C.,Lin H.,Jin F.-F.. A Southern Hemisphere booster of super El Niño[J]. Geophysical Research Letters,2014-01-01,41(6).
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