| DOI: | 10.1002/2014GL059948
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| 论文题名: | The two types of El-Niño and their impacts on the length of day |
| 作者: | De Viron O.; Dickey J.O.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10067
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| EISSN: | 1944-9798
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| 出版年: | 2014
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| 卷: | 41, 期:10 | | 起始页码: | 3407
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| 结束页码: | 3412
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| 语种: | 英语
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| 英文关键词: | Earth rotation
; El Niño
; length of day
; torque approach
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| Scopus关键词: | Atmospheric pressure
; Decadal timescale
; Earth rotation
; Eastern pacific
; Interannual
; Length of days
; Mountain ranges
; Pacific ocean
; Angular momentum
; angular momentum
; day length
; Earth rotation
; El Nino
; El Nino-Southern Oscillation
; mountain region
; pressure gradient
; torque
; Pacific Ocean
; Pacific Ocean (Central)
; Pacific Ocean (East)
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| 英文摘要: | At the interannual to decadal time scale, the changes in the Earth rotation rate are linked with the El-Niño-Southern Oscillation phenomena through changes in the atmospheric angular momentum. As climatic studies demonstrate that there were two types of El-Niño events, namely, eastern Pacific (EP) and central Pacific (CP) events, we investigate how each of them affects the atmospheric angular momentum. We show in particular that EP events are associated with stronger variations of the atmospheric angular momentum and length of day. We explain this difference by the stronger pressure gradient over the major mountain ranges, due to a stronger and more efficiently localized pressure dipole over the Pacific Ocean in the case of EP events. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902244773&doi=10.1002%2f2014GL059948&partnerID=40&md5=28214ed9b4874c98552cf242ac33ec88
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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/7331
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Université Paris Diderot, Sorbonne Paris Cité, Institut de Physique du Globe de Paris (UMR7159), Paris, France
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| Recommended Citation: | |
De Viron O.,Dickey J.O.. The two types of El-Niño and their impacts on the length of day[J]. Geophysical Research Letters,2014-01-01,41(10).
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