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    Acoustic detection of oceanic double-diffusive convection : a feasibility study

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    2009jtecho696%2E1.pdf (2.845Mb)
    Date
    2010-03
    Author
    Ross, Tetjana  Concept link
    Lavery, Andone C.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3952
    As published
    https://doi.org/10.1175/2009JTECHO696.1
    DOI
    10.1175/2009JTECHO696.1
    Keyword
     Acoustic measurements/effects; Convection; Antarctica; In situ observations 
    Abstract
    The feasibility of using high-frequency acoustic scattering techniques to map the extent and evolution of the diffusive regime of double-diffusive convection in the ocean is explored. A scattering model developed to describe acoustic scattering from double-diffusive interfaces in the laboratory, which accounted for much of the measured scattering in the frequency range from 200 to 600 kHz, is used in conjunction with published in situ observations of diffusive-convection interfaces to make predictions of acoustic scattering from oceanic double-diffusive interfaces. Detectable levels of acoustic scattering are predicted for a range of different locations in the world’s oceans. To corroborate these results, thin acoustic layers detected near the western Antarctic Peninsula using a multifrequency acoustic backscattering system are shown to be consistent with scattering from diffusive-convection interfaces.
    Description
    Author Posting. © American Meteorological Society, 2010. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 27 (2010): 580-593, doi:10.1175/2009JTECHO696.1.
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    • Applied Ocean Physics and Engineering (AOP&E)
    Suggested Citation
    Journal of Atmospheric and Oceanic Technology 27 (2010): 580-593
     

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