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    Noise characterisation of the Aurora Australis while stationary in Antarctic sea ice

    Access Status
    Fulltext not available
    Authors
    Alexander, P.
    Duncan, Alec
    Bose, N.
    Wilkes, Daniel
    Lewis, R.
    De Souza, P.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Alexander, P. and Duncan, A. and Bose, N. and Wilkes, D. and Lewis, R. and De Souza, P. 2014. Noise characterisation of the Aurora Australis while stationary in Antarctic sea ice. Ocean Engineering. 82: pp. 52-64.
    Source Title
    Ocean Engineering
    DOI
    10.1016/j.oceaneng.2014.02.030
    ISSN
    0029-8018
    School
    Centre for Marine Science and Technology
    URI
    http://hdl.handle.net/20.500.11937/22215
    Collection
    • Curtin Research Publications
    Abstract

    This work investigates the underwater noise propagation of the primary vessel used by the Australian Antarctic Division Aurora Australis while stationary in a configuration and location suitable for under-ice Autonomous Underwater Vehicle (AUV) deployment. It outlines a novel method for recording and validating the noise of a vessel using available equipment and standard deployment options. Numerical modelling using the Fast Multipole Boundary Element Method (FMBEM) is combined with the response to a calibrated source to assess the limitations and residual uncertainty of the experiment. The results of this work indicate that there is a 10 dB re View the MathML source1µPa reduction in mean noise by removal of main engine noise and a low point in ship noise at 3.8 kHz. Two hundred metres depth was found to be a preferred depth for uniformity in the noise field.

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