Submesoscale cyclones in the Agulhas current
| Type | Article | ||||||||||||
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| Date | 2017-01 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Krug M.1, 2, Swart S.3, 4, 5, Gula J.6 | ||||||||||||
| Affiliation(s) | 1 : CSIR, Ecosyst Earth Observat, Stellenbosch, South Africa. 2 : Univ Cape Town, Dept Oceanog, Nansen Tutu Ctr Marine Environm Res, Cape Town, South Africa. 3 : CSIR, Southern Ocean Carbon & Climate Observ, Stellenbosch, South Africa. 4 : Univ Cape Town, Dept Oceanog, Cape Town, South Africa. 5 : Univ Gothenburg, Dept Marine Sci, Gothenburg, Sweden. 6 : Univ Brest, CNRS, LOPS, IRD,Ifremer,IUEM, Brest, France. |
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| Source | Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2017-01 , Vol. 44 , N. 1 , P. 346-354 | ||||||||||||
| DOI | 10.1002/2016GL071006 | ||||||||||||
| WOS© Times Cited | 35 | ||||||||||||
| Keyword(s) | western boundary current, coastal and shelf, sub-mesoscale, Agulhas Current, ocean gliders, instabilities | ||||||||||||
| Abstract | Gliders were deployed for the first time in the Agulhas Current region to investigate processes of interactions between western boundary currents and shelf waters. Continuous observations from the gliders in water depths of 100-1000m and over a period of 1month provide the first high-resolution observations of the Agulhas Current's inshore front. The observations collected in a nonmeandering Agulhas Current show the presence of submesoscale cyclonic eddies, generated at the inshore boundary of the Agulhas Current. The submesoscale cyclones are often associated with warm water plumes, which extend from their western edge and exhibit strong northeastward currents. These features are a result of shear instabilities and extract their energy from the mean Agulhas Current jet. | ||||||||||||
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