Memorias de investigación
Artículos en revistas:
The Lagrangian description of aperiodic flows: a case study of the Kuroshio Current.
Año:2012
Áreas de investigación
  • Física química y matemáticas,
  • Oceanografía
Datos
Descripción
This article reviews several recently developed Lagrangian tools and shows how their com- bined use succeeds in obtaining a detailed description of purely advective transport events in general aperiodic flows. In particular, because of the climate impact of ocean transport processes, we illustrate a 2D application on altimeter data sets over the area of the Kuroshio Current, although the proposed techniques are general and applicable to arbitrary time depen- dent aperiodic flows. The first challenge for describing transport in aperiodical time dependent flows is obtaining a representation of the phase portrait where the most relevant dynamical features may be identified. This representation is accomplished by using global Lagrangian descriptors that when applied for instance to the altimeter data sets retrieve over the ocean surface a phase portrait where the geometry of interconnected dynamical systems is visible. The phase portrait picture is essential because it evinces which transport routes are acting on the whole flow. Once these routes are roughly recognised it is possible to complete a detailed description by the direct computation of the finite time stable and unstable manifolds of special hyperbolic trajectories that act as organising centres of the flow.
Internacional
Si
JCR del ISI
Si
Título de la revista
Nonlinear Processes in Geophysics
ISSN
1023-5809
Factor de impacto JCR
1,597
Información de impacto
Volumen
19
DOI
Número de revista
Desde la página
449
Hasta la página
472
Mes
SIN MES
Ranking
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Participantes
  • Autor: Carolina Andrea Mendoza Parra UPM
  • Autor: Ana María Mancho CSIC
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ciencias Aplicadas a la Ingeniería Naval