Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/14836
Share/Impact:
Título : Lagrangian transport through an ocean front in the North-Western Mediterranean Sea
Autor : Mancho, Ana M., Hernández-García, Emilio, Small, Des, Wiggins, Stephen, Fernández, Vicente
Palabras clave : Mediterranean Sea
Lobe dynamics
Transport
Atmospheric and Oceanic Physics
Fecha de publicación : Jun-2008
Editor: American Meteorological Society
Allen Press
Citación : Journal of Physical Oceanography 38(6): 1222-1237 (2008)
Resumen: With the tools of lobe dynamics, the authors analyze the structures present in the velocity field obtained from a numerical simulation of the surface circulation in the northwestern Mediterranean Sea. In particular, focus is placed on the North Balearic Front, the westernmost part of the transition zone between saltier and fresher waters in the western Mediterranean, which is here interpreted in terms of the presence of a semipermanent “Lagrangian barrier,” across which little transport occurs. Identified are relevant hyperbolic trajectories and their manifolds, and it is shown that the transport mechanism known as the turnstile, previously identified in abstract dynamical systems and simplified model flows, is also at work in this complex and realistic ocean flow. In addition, nonlinear dynamics techniques are shown to be powerful enough to identify the key geometric structures in this part of the Mediterranean. The construction also reveals the spatiotemporal routes along which this transport happens. Topological changes in that picture, which are associated with the crossing by eddies and may be interpreted as the breakdown of the front, are also observed during the simulation.
Descripción : 16 pages, 6 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/physics/0608105
URI : http://hdl.handle.net/10261/14836
ISSN: 0022-3670
DOI: 10.1175/2007JPO3677.1
Citación : Journal of Physical Oceanography 38(6): 1222-1237 (2008)
Appears in Collections:(ICMAT) Artículos
(IFISC) Artículos

Files in This Item:
File Description SizeFormat 
lobesJuly2.pdf1,48 MBAdobe PDFView/Open
Show full item record
 
CSIC SFX LinksSFX Query


Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.