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    The North Pacific Acoustic Laboratory deep-water acoustic propagation experiments in the Philippine Sea

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    1.4818887.pdf (13.56Mb)
    Date
    2013-10
    Author
    Worcester, Peter F.  Concept link
    Dzieciuch, Matthew A.  Concept link
    Mercer, James A.  Concept link
    Andrew, Rex K.  Concept link
    Dushaw, Brian D.  Concept link
    Baggeroer, Arthur B.  Concept link
    Heaney, Kevin D.  Concept link
    D'Spain, Gerald L.  Concept link
    Colosi, John A.  Concept link
    Stephen, Ralph A.  Concept link
    Kemp, John N.  Concept link
    Howe, Bruce M.  Concept link
    Van Uffelen, Lora J.  Concept link
    Wage, Kathleen E.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/6521
    As published
    https://doi.org/10.1121/1.4818887
    DOI
    10.1121/1.4818887
    Abstract
    A series of experiments conducted in the Philippine Sea during 2009–2011 investigated deep-water acoustic propagation and ambient noise in this oceanographically and geologically complex region: (i) the 2009 North Pacific Acoustic Laboratory (NPAL) Pilot Study/Engineering Test, (ii) the 2010–2011 NPAL Philippine Sea Experiment, and (iii) the Ocean Bottom Seismometer Augmentation of the 2010–2011 NPAL Philippine Sea Experiment. The experimental goals included (a) understanding the impacts of fronts, eddies, and internal tides on acoustic propagation, (b) determining whether acoustic methods, together with other measurements and ocean modeling, can yield estimates of the time-evolving ocean state useful for making improved acoustic predictions, (c) improving our understanding of the physics of scattering by internal waves and spice, (d) characterizing the depth dependence and temporal variability of ambient noise, and (e) understanding the relationship between the acoustic field in the water column and the seismic field in the seafloor. In these experiments, moored and ship-suspended low-frequency acoustic sources transmitted to a newly developed distributed vertical line array receiver capable of spanning the water column in the deep ocean. The acoustic transmissions and ambient noise were also recorded by a towed hydrophone array, by acoustic Seagliders, and by ocean bottom seismometers.
    Description
    Author Posting. © Acoustical Society of America, 2013. 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 134 (2013): 3359, doi:10.1121/1.4818887.
    Collections
    • Geology and Geophysics (G&G)
    • Applied Ocean Physics and Engineering (AOP&E)
    Suggested Citation
    Journal of the Acoustical Society of America 134 (2013): 3359
     

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