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    Modeling cumulative sound exposure over large areas, multiple sources, and long durations

    Access Status
    Fulltext not available
    Authors
    Erbe, Christine
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Erbe, Christine. 2012. Modeling cumulative sound exposure over large areas, multiple sources, and long durations. Advances in Experimental Medicine and Biology. 730: pp. 477-479.
    Source Title
    Advances in Experimental Medicine and Biology
    DOI
    10.1007/978-1-4419-7311-5_108
    ISSN
    00652598
    URI
    http://hdl.handle.net/20.500.11937/6417
    Collection
    • Curtin Research Publications
    Abstract

    Guidelines and regulations for underwater noise exposure tend to focus on single events. For example, the noise field from a single strike on a pile during pile driving or from a single discharge of a seismic air gun array is mapped through either modeling or field measurements, and mitigation zones are defined based on ranges to thresholds commonly expressed as sound pressure level (SPL) or sound exposure level (SEL). In many situations, however, animals will experience ongoing or repeated exposure. The effects of cumulative exposure, the way in which effects from single exposures accumulate, and the potential for recovery between repeated exposures are poorly understood. Another (computational) challenge is to predict, through modeling, cumulative levels received by animals from multiple sources, from moving sources, and from multiple exposures over long durations and large areas. The following sections outline the steps to solve the computational problem for selected example cases.

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