English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/45462
Compartir / Impacto:
Título : Oceanic three-dimensional Lagrangian Coherent Structures: A study in the Benguela upwelling region.
Autor : Bettencourt, João H.; López, Cristóbal; Hernández-García, Emilio
Palabras clave : Lagrangian Coherent Structures
Finite-Size Lyapunov exponents
Fecha de publicación : jul-2012
Citación : Ocean Modelling 51: 73-83 (2011)
Resumen: We study three dimensional oceanic Lagrangian Coherent Structures (LCSs) in the Benguela region, as obtained from an output from the ROMS model. To this end we first compute Finite-Size Lyapunov exponent (FSLE) fields in the region volume, characterizing mesoscale stirring and mixing there. Average FSLE values show a general decreasing trend with depth, but there is a local maximum at about 100m depth. LCSs are extracted as ridges of the calculated FSLE fields. They present a “curtain-like” geometry in which the strongest attracting and repelling structures appear as quasivertical surfaces. LCSs around a particular cyclonic eddy, pinched o from the upwelling front are also calculated. The LCSs are confirmed to provide pathways and barriers to transport in and out of the eddy
Versión del editor: http://dx.doi.org/10.1016/j.ocemod.2012.04.004
URI : http://hdl.handle.net/10261/45462
ISSN: 1463-5003
DOI: 10.1016/j.ocemod.2012.04.004
Aparece en las colecciones: (IFISC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Benguela_OcModelling_Final_20111115.pdf1,49 MBAdobe PDFVisualizar/Abrir
Mostrar el registro completo
Enlaces SFX CSICSFX Query

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.