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Assessing the effectiveness of ramp-up during sonar operations using exposure models

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Ramp-up procedures are used to mitigate the impact of sound on marine mammals. Sound exposure models combined with observations of marine mammals responding to sound can be used to assess the effectiveness of ramp-up procedures. We found that ramp-up procedures before full-level sonar operations can reduce the risk of hearing threshold shifts with marine mammals, but their effectiveness depends strongly on the responsiveness of the animals. In this paper, we investigated the effect of sonar parameters (source level, pulse-repetition time, ship speed) on sound exposure by using a simple analytical model and highlight the mechanisms that limit the effectiveness of ramp-up procedures.

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Original languageEnglish
Title of host publicationAdvances in Experimental Medicine and Biology
PublisherSpringer
Pages1197-1203
Number of pages7
Volume875
DOIs
Publication statusPublished - 2016

Publication series

NameAdvances in Experimental Medicine and Biology
Volume875
ISSN (Print)00652598
ISSN (Electronic)22148019

    Research areas

  • Killer whales, Mitigation, Ramp-up, Soft start, Sonar

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ID: 244398315