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Shelfbreak upwelling induced by alongshore currents: analytical and numerical results

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dc.creator Miller, Robert N.
dc.creator Matano, Ricardo P.
dc.creator Palma, Elbio D.
dc.date.accessioned 2012-11-08T17:49:02Z
dc.date.available 2013-10-15T22:18:26Z
dc.date.issued 2011-11
dc.identifier.citation Miller, R. N., Matano, R. P., & Palma, E. D. (2011). Shelfbreak upwelling induced by alongshore currents: Analytical and numerical results. Journal of Fluid Mechanics, 686, 239-249. doi: 10.1017/jfm.2011.326 en_US
dc.identifier.uri http://hdl.handle.net/1957/34977
dc.description This is the publisher’s final pdf. The published article is copyrighted by Cambridge University Press and can be found at: http://www.cambridge.org/home/home/item5655304/?site_locale=en_US. en_US
dc.description.abstract Alongshore flow in the direction of propagation of coastal trapped waves can result in upwelling at the shelfbreak. The intensity of this upwelling can be comparable in magnitude to wind-driven coastal upwelling, with its associated ecological features. Recent numerical experiments by Matano & Palma indicate that this upwelling results from convergence of Ekman transport at the shelfbreak. The mechanism for this phenomenon can be understood in terms of steady solutions to the shallow water equations in the presence of Coriolis force and bottom drag. Matano & Palma interpreted their numerical results in terms of the arrested topographic wave, but did not present direct comparisons. Here we present a family of analytical solutions to the equations of the arrested topographic wave that shows striking quantitative agreement with earlier numerical results. en_US
dc.description.sponsorship R.N.M. acknowledges the support of Office of Naval Research grant number 1010423, National Science Foundation award number 0934956-OCE and award NA08NES4400013 from the National Oceanic and Atmospheric Administration, US Department of Commerce, to the Cooperative Institute for Oceanographic Satellite Studies (CIOSS) and the Joint Center for Satellite Data Assimilation (JCSDA). R.P.M. acknowledges the support of the National Science Foundation through grants OCE-0726994 and OCE-0928348 and of NASA through grant NNX08AR40G. EDP acknowledges support from CONICET (PIP09-112-200801), ANPCYT (PICT08-1874), U. Nac. del Sur (24F044) and IAI grant CRN2076. The IAI is supported by the US NSF, grant GEO-045325. en_US
dc.language.iso en_US en_US
dc.publisher Cambridge University Press en_US
dc.relation.ispartofseries Journal of Fluid Mechanics en_US
dc.relation.ispartofseries Vol. 686 en_US
dc.subject Ocean processes en_US
dc.subject Shallow water flows en_US
dc.subject Topographic effects en_US
dc.title Shelfbreak upwelling induced by alongshore currents: analytical and numerical results en_US
dc.type Article en_US
dc.description.peerreview yes en_US
dc.identifier.doi 10.1017/jfm.2011.326
dc.description.embargopolicy Repository Administrators en

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