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Open Access item Wave mixing rise inferred from Lyapunov exponent

Authors:Galán, Álvaro
Orfila, Alejandro
Simarro, Gonzalo
Hernández Carrasco, Ismael
López, Cristóbal
Issue Date:Jun-2012
Publisher:Springer
Citation:Environmental Fluid Mechanics 12(3): 291-300 (2012)
Abstract:We study the horizontal surface mixing and the transport induced by waves in a coastal environment. A comparative study is addressed by computing the Lagrangian Coherent Structures, via Finite Size Lyapunov Exponents, that arise in two different numerical settings: with and without wave coupled to currents. In general,we observe that mixing is increased in the area due to waves. Besides, the methodology presented here is tested by deploying a set of eight Lagrangian drifters at different locations. This dynamical approach is shown as a valuable tool to extract information about transport, mixing and residence embedded in the Eulerian time dependent velocity fields obtained from numerical models.
Publisher version (URL):http://dx.doi.org/10.1007/s10652-012-9238-3
URI:http://hdl.handle.net/10261/46167
ISSN:1567-7419
E-ISSNmetadata.dc.identifier.doi = DOI:1573-1510
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