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    Eddy-Kuroshio interaction processes revealed by mooring observations off Taiwan and Luzon

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    Article (783.9Kb)
    Figure S1 and Tables S1 and S2 (629.7Kb)
    Date
    2015-10-08
    Author
    Tsai, Cheng-Ju  Concept link
    Andres, Magdalena  Concept link
    Jan, Sen  Concept link
    Mensah, Vigan  Concept link
    Sanford, Thomas B.  Concept link
    Lien, Ren-Chieh  Concept link
    Lee, Craig M.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/7660
    As published
    https://doi.org/10.1002/2015GL065814
    DOI
    10.1002/2015GL065814
    Keyword
     Kuroshio; Mesoscale eddy; Eddy-Kuroshio interaction; Pressure sensor-equipped inverted echo sounder 
    Abstract
    The influence and fate of westward propagating eddies that impinge on the Kuroshio were observed with pressure sensor-equipped inverted echo sounders (PIESs) deployed east of Taiwan and northeast of Luzon. Zero lag correlations between PIES-measured acoustic travel times and satellite-measured sea surface height anomalies (SSHa), which are normally negative, have lower magnitude toward the west, suggesting the eddy-influence is weakened across the Kuroshio. The observational data reveal that impinging eddies lead to seesaw-like SSHa and pycnocline depth changes across the Kuroshio east of Taiwan, whereas analogous responses are not found in the Kuroshio northeast of Luzon. Anticyclones intensify sea surface and pycnocline slopes across the Kuroshio, while cyclones weaken these slopes, particularly east of Taiwan. During the 6 month period of overlap between the two PIES arrays, only one anticyclone affected the pycnocline depth first at the array northeast of Luzon and 21 days later in the downstream Kuroshio east of Taiwan.
    Description
    Author Posting. © American Geophysical Union, 2015. 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 42 (2015): 8098–8105, doi:10.1002/2015GL065814.
    Collections
    • Physical Oceanography (PO)
    Suggested Citation
    Geophysical Research Letters 42 (2015): 8098–8105
     

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