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    Deep seafloor arrivals : an unexplained set of arrivals in long-range ocean acoustic propagation

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    JASA_Stephen-2009.pdf (1.225Mb)
    Date
    2009-08
    Author
    Stephen, Ralph A.  Concept link
    Bolmer, S. Thompson  Concept link
    Dzieciuch, Matthew A.  Concept link
    Worcester, Peter F.  Concept link
    Andrew, Rex K.  Concept link
    Buck, Linda J.  Concept link
    Mercer, James A.  Concept link
    Colosi, John A.  Concept link
    Howe, Bruce M.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/2900
    As published
    https://doi.org/10.1121/1.3158826
    DOI
    10.1121/1.3158826
    Keyword
     Hydrophones; Ocean waves; Oceanographic equipment; Sonar; Underwater acoustic propagation 
    Abstract
    Receptions, from a ship-suspended source (in the band 50–100 Hz) to an ocean bottom seismometer (about 5000 m depth) and the deepest element on a vertical hydrophone array (about 750 m above the seafloor) that were acquired on the 2004 Long-Range Ocean Acoustic Propagation Experiment in the North Pacific Ocean, are described. The ranges varied from 50 to 3200 km. In addition to predicted ocean acoustic arrivals and deep shadow zone arrivals (leaking below turning points), “deep seafloor arrivals,” that are dominant on the seafloor geophone but are absent or very weak on the hydrophone array, are observed. These deep seafloor arrivals are an unexplained set of arrivals in ocean acoustics possibly associated with seafloor interface waves.
    Description
    Author Posting. © Acoustical Society of America, 2009. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 126 (2009): 599-606, doi:10.1121/1.3158826.
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    • Geology and Geophysics (G&G)
    Suggested Citation
    Journal of the Acoustical Society of America 126 (2009): 599-606
     

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