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Title

Kinematic studies of transport across an island wake, with application to the Canary islands

AuthorsSandulescu, Mathias; Hernández-García, Emilio ; López, Cristóbal ; Feudel, Ulrike
KeywordsChaotic Dynamics
Atmospheric and Oceanic Physics
Fluid Dynamics
Vorticity
Wake
Canary Islands
Issue Date1-Oct-2006
PublisherBlackwell Publishing
CitationTellus A 58, 605-615 (2006)
AbstractTransport from nutrient-rich coastal upwellings is a key factor influencing biological activity in surrounding waters and even in the open ocean. The rich upwelling in the North-Western African coast is known to interact strongly with the wake of the Canary islands, giving rise to filaments and other mesoscale structures of increased productivity. Motivated by this scenario, we introduce a simplified two-dimensional kinematic flow describing the wake of an island in a stream, and study the conditions under which there is a net transport of substances across the wake. For small vorticity values in the wake, it acts as a barrier, but there is a transition when increasing vorticity so that for values appropriate to the Canary area, it entrains fluid and enhances cross-wake transport.
DescriptionArXiv pre-print: http://arxiv.org/abs/nlin/0605051.-- Final full-text version of the paper available at: http://dx.doi.org/10.1111/j.1600-0870.2006.00199.x.
URIhttp://hdl.handle.net/10261/6093
DOI10.1111/j.1600-0870.2006.00199.x
ISSN0280-6495
Appears in Collections:(IFISC) Artículos
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