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    A new mechanism for the generation of quasi-zonal jets in the ocean

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    2012GL051861.pdf (781.0Kb)
    Date
    2012-05-16
    Author
    Wang, Jinbo  Concept link
    Spall, Michael A.  Concept link
    Flierl, Glenn R.  Concept link
    Malanotte-Rizzoli, Paola  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/5224
    As published
    https://doi.org/10.1029/2012GL051861
    DOI
    10.1029/2012GL051861
    Keyword
     Rossby waves; Barotropic instability; Eastern boundary currents; Radiating instabilities; Zonal jets; Zonal striations 
    Abstract
    A simple barotropic quasi-geostrophic model is used to demonstrate that instabilities radiated from an unstable eastern boundary current can generate zonal striations in the ocean interior with realistic wavelengths and amplitudes. Nonlinear transfer of energy from the more unstable trapped modes is important for radiating modes to overcome friction. The dynamics shown here are generic enough to point to the eastern boundary current as a likely source of the observed striations extending from oceanic eastern boundaries.
    Description
    Author Posting. © American Geophysical Union, 2012. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 39 (2012): L10601, doi:10.1029/2012GL051861.
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    • Physical Oceanography (PO)
    Suggested Citation
    Geophysical Research Letters 39 (2012): L10601
     

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