globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50157
论文题名:
Dipoles of the South East Madagascar Current
作者: Ridderinkhof W.; Le Bars D.; Von Der Heydt A.S.; De Ruijter W.P.M.
刊名: Geophysical Research Letters
ISSN: 0094-9314
EISSN: 1944-9045
出版年: 2013
卷: 40, 期:3
起始页码: 558
结束页码: 562
语种: 英语
英文关键词: Agulhas ; altimetry ; dipoles ; Indian Ocean ; physical oceanography ; SEMC
Scopus关键词: Earth sciences ; Geophysics ; Agulhas ; altimetry ; dipoles ; Indian ocean ; Physical oceanography ; SEMC ; Vortex flow ; El Nino-Southern Oscillation ; physical oceanography ; satellite altimetry ; satellite data ; vortex ; vorticity ; Agulhas Current ; Indian Ocean ; Madagascar
英文摘要: Satellite altimetry data covering 18 years together with hydrographic observations around south Madagascar show that after separation from the coast, the South East Madagascar Current (SEMC) propagates southwestward and breaks up into a regular series of symmetric counter-rotating vortex pairs. Most of them split and propagate into the Agulhas retroflection system. Interannual variability of the dipole formation is related to the El Nino-Southern Oscillation. In the observation period two "early" Agulhas retroflection events appeared both related to strong Madagascar dipoles. The symmetry of the dipoles may originate from the boundary current where negative vorticity on the inshore side is adjacent to positive vorticity further offshore. Key Points The SEMC breaks up into symmetric dipolar structures Interannual variability in the SEMC outflow is related to ENSO Only two early retroflection events occurred in the Agulhas Current in 18 years © 2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878188187&doi=10.1002%2fgrl.50157&partnerID=40&md5=4cc841afda2ad2aadf53ae449932d051
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6578
Appears in Collections:气候减缓与适应

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作者单位: Institute for Marine and Atmospheric Research, Utrecht University, PO Box 80.005, Utrecht 3508 TA, Netherlands

Recommended Citation:
Ridderinkhof W.,Le Bars D.,Von Der Heydt A.S.,et al. Dipoles of the South East Madagascar Current[J]. Geophysical Research Letters,2013-01-01,40(3).
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