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| Titel |
Intergyre transport in a wind-driven, quasigeostrophic double gyre: An application of lobe dynamics |
| VerfasserIn |
C. Coulliette, S. Wiggins |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 8, no. 1/2 ; Nr. 8, no. 1/2, S.69-94 |
| Datensatznummer |
250005289
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| Publikation (Nr.) |
 copernicus.org/npg-8-69-2001.pdf |
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| Zusammenfassung |
| We study the flow
obtained from a three-layer, eddy-resolving quasigeostrophic ocean
circulation model subject to an applied wind stress curl. For this model
we will consider transport between the northern and southern gyres
separated by an eastward jet. We will focus on the use of techniques from
dynamical systems theory, particularly lobe dynamics, in the forming of
geometric structures that govern transport. By "govern", we mean
they can be used to compute Lagrangian transport quantities, such as the
flux across the jet. We will consider periodic, quasiperiodic, and chaotic
velocity fields, and thus assess the effectiveness of dynamical systems
techniques in flows with progressively more spatio-temporal complexity.
The numerical methods necessary to implement the dynamical systems
techniques and the significance of lobe dynamics as a signature of
specific "events", such as rings pinching off from a meandering
jet, are also discussed. |
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