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    Submesoscale coherent vortices in the Gulf Stream.

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    Date
    2019-02-27
    Author
    Gula, Jonathan  Concept link
    Blacic, Tanya M.  Concept link
    Todd, Robert E.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/24055
    As published
    https://doi.org/10.1029/2019GL081919
    DOI
    10.1029/2019GL081919
    Keyword
     Submesoscale coherent vortices; Glider; Seismic observations; Gulf Stream; Topographic interactions; Charleston Bump 
    Abstract
    Seismic images and glider sections of the Gulf Stream front along the U.S. eastern seaboard capture deep, lens‐shaped submesoscale features. These features have radii of 5–20 km, thicknesses of 150–300 m, and are located at depths greater than 500 m. These are typical signatures of anticyclonic submesoscale coherent vortices. A submesoscale‐resolving realistic simulation, which reproduces submesoscale coherent vortices with the same characteristics, is used to analyze their generation mechanism. Submesoscale coherent vortices are primarily generated where the Gulf Stream meets the Charleston Bump, a deep topographic feature, due to the frictional effects and intense mixing in the wake of the topography. These submesoscale coherent vortices can transport waters from the Charleston Bump's thick bottom mixed layer over long distances and spread them within the subtropical gyre. Their net effect on heat and salt distribution remains to be quantified.
    Description
    Author Posting. © American Geophysical Union, 2019. 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 46(5), (2019):2704-2714, doi:10.1029/2019GL081919.
    Collections
    • Physical Oceanography (PO)
    Suggested Citation
    Gula, J., Blacic, T. M., & Todd, R. E. (2019). Submesoscale coherent vortices in the Gulf Stream. Geophysical Research Letters, 46(5), 2704-2714.
     

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