| DOI: | 10.1002/grl.50782
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| 论文题名: | Advective timescales and pathways of Agulhas leakage |
| 作者: | Rühs S.; Durgadoo J.V.; Behrens E.; Biastoch A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8690
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| EISSN: | 1944-8421
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| 出版年: | 2013
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| 卷: | 40, 期:15 | | 起始页码: | 3997
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| 结束页码: | 4000
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| 语种: | 英语
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| 英文关键词: | Atlantic meridional overturning
; Lagrangian analysis
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| Scopus关键词: | Atlantic meridional overturning
; Atlantic meridional overturning circulations
; Density anomalies
; Lagrangian analysis
; North Atlantic
; South Atlantic
; Time-scales
; Transit time
; Ocean currents
; Lagrange multipliers
; advection
; eddy
; Lagrangian analysis
; leakage
; meridional circulation
; timescale
; Agulhas Current
; Atlantic Ocean
; Indian Ocean
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| 英文摘要: | Current research indicates an increase in Agulhas leakage for the past and coming decades. This change potentially alters the strength of the Atlantic meridional overturning circulation, in particular, through advection of positive density anomalies into the North Atlantic. To explore the fate of Agulhas leakage, results from a Lagrangian analysis were evaluated, with virtual floats advected within an eddy-permitting ocean model (ORCA025). A considerable fraction of Agulhas leakage reached the subtropical North Atlantic: of a mean Agulhas leakage transport of 15.3 Sv entering the South Atlantic, 9.7, 7.7, and 6.1 Sv crossed sections at 6°S, 6°N, and 26°N, respectively. The most probable transit time of leakage to reach the respective latitudes is one to two decades. We suggest that changes in Agulhas leakage could manifest in the Gulf Stream regime most probably within two decades. These results were supported by an eddy-resolving implementation of the ocean model (INALT01). © 2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881285681&doi=10.1002%2fgrl.50782&partnerID=40&md5=7eba82c424775a83e819470d60b1e073
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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/5954
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| Appears in Collections: | 气候减缓与适应
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作者单位: | GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Düsternbrooker Weg 20, DE-24105 Kiel, Germany
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| Recommended Citation: | |
Rühs S.,Durgadoo J.V.,Behrens E.,et al. Advective timescales and pathways of Agulhas leakage[J]. Geophysical Research Letters,2013-01-01,40(15).
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