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Show simple item record Braby, L Backeberg, Björn C Ansorge, I Roberts, MJ Krug, Marjolaine J Reason, CJC 2017-05-16T11:57:18Z 2017-05-16T11:57:18Z 2016-08
dc.identifier.citation Braby, L., Backeberg, B.C., Ansorge, I. et al. 2016. Observed eddy dissipation in the Agulhas Current. Geophysical Research Letters, vol. 43(15): 8143-8150 en_US
dc.identifier.issn 0094-8276
dc.identifier.uri DOI: 10.1002/2016GL069480
dc.description ©2016. American Geophysical Union. en_US
dc.description.abstract Analyzing eddy characteristics from a global data set of automatically tracked eddies for the Agulhas Current in combination with surface drifters as well as geostrophic currents from satellite altimeters, it is shown that eddies from the Mozambique Channel and south of Madagascar dissipate as they approach the Agulhas Current. By tracking the offshore position of the current core and its velocity at 30°S in relation to eddies, it is demonstrated that eddy dissipation occurs through a transfer of momentum, where anticyclones consistently induce positive velocity anomalies, and cyclones reduce the velocities and cause offshore meanders. Composite analyses of the anticyclonic (cyclonic) eddy-current interaction events demonstrate that the positive (negative) velocity anomalies propagate downstream in the Agulhas Current at 44 km/d (23 km/d). Many models are unable to represent these eddy dissipation processes, affecting our understanding of the Agulhas Current. en_US
dc.language.iso en en_US
dc.publisher AGU Publications en_US
dc.rights CC0 1.0 Universal *
dc.rights.uri *
dc.subject Agulhas Current en_US
dc.subject Eddies en_US
dc.subject Geophysics en_US
dc.title Observed eddy dissipation in the Agulhas Current en_US
dc.type Article en_US

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