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    Chaotic advection in an archipelago

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    2010jpo4336.1.pdf (10.00Mb)
    Date
    2010-09
    Author
    Rypina, Irina I.  Concept link
    Pratt, Lawrence J.  Concept link
    Pullen, Julie  Concept link
    Levin, Julia C.  Concept link
    Gordon, Arnold L.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3951
    As published
    https://doi.org/10.1175/2010JPO4336.1
    DOI
    10.1175/2010JPO4336.1
    Keyword
     Advection; Ocean circulation 
    Abstract
    Techniques from dynamical systems theory have been applied to study horizontal stirring of fluid in the Philippine Archipelago. The authors’ analysis is based on velocity fields produced by two high-resolution (3 and 6 km) numerical models. Particular attention is paid to identifying robust surface flow patterns and associating them with dominant Lagrangian coherent structures (LCSs). A recurrent wind-driven dipole in the lee of the coastline is considered in detail. The associated LCSs form a template for stirring, exchange, and biological transport in and around the dipole. Chaotic advection is argued to provide a relevant framework for interpreting mesoscale horizontal stirring processes in an archipelago as a whole. Implications for the formation of filaments, the production of tracer variance, and the scale at which stirring leads to mixing are discussed in connection with an observed temperature record.
    Description
    Author Posting. © American Meteorological Society, 2010. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 40 (2010): 1988–2006, doi:10.1175/2010JPO4336.1.
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    • Physical Oceanography (PO)
    Suggested Citation
    Journal of Physical Oceanography 40 (2010): 1988–2006
     

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