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    Global distribution of the decay timescale of mixed layer inertial motions observed by satellite-tracked drifters

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    2008JC005216.pdf (2.025Mb)
    Date
    2009-11-05
    Author
    Park, Jong Jin  Concept link
    Kim, Kuh  Concept link
    Schmitt, Raymond W.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3682
    As published
    https://doi.org/10.1029/2008JC005216
    DOI
    10.1029/2008JC005216
    Keyword
     Inertial wave; Decay timescale; Surface drifter 
    Abstract
    The decay timescale of mixed layer inertial amplitudes has been estimated from satellite tracked drifter trajectories from 1990 to 2004 as the e-folding timescale of the temporal correlation functions. The decay timescales increase with latitude in all basins except the North Atlantic. A beta dispersion model shows that dephasing leads to meridional variations of the decay timescale in the North Pacific and the Southern Ocean, but meridional variations of the buoyancy structure in the North Atlantic act to compensate the beta effect, leading to a lack of meridional variation of the decay timescale in that ocean.
    Description
    Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 114 (2009): C11010, doi:10.1029/2008JC005216.
    Collections
    • Physical Oceanography (PO)
    Suggested Citation
    Journal of Geophysical Research 114 (2009): C11010
     

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