Radiated noise from commercial ships in the Gulf of Maine: Implications for whale/vessel collisions

J. Kaitlyn Allen; Michael L. Peterson; George V. Sharrard; Dana L. Wright; Sean K. Todd

doi:10.1121/1.4739251

Radiated noise from commercial ships in the Gulf of Maine: Implications for whale/vessel collisions

J. Kaitlyn Allen, Michael L. Peterson, George V. Sharrard, Dana L. Wright, Sean K. Todd

Biosystems and Agricultural Engineering

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

To understand mysticete acoustic-based detection of ships, radiated noise from high-speed craft, cruise ships, catamarans and fishing vessels was recorded June-September 2009. Calibrated acoustic data (2500 Hz) from a vertical hydrophone array was combined with ship passage information. A cruise ship had the highest broadband source level, while a fishing vessel had the lowest. Ship noise radiated asymmetrically and varied with depth. Bow null-effect acoustic shadow zones were observed for all ship classes and were correlated with ship-length-to-draft-ratios. These shadow zones may reduce ship detection by near-surface mysticetes.

Original language	English
Pages (from-to)	EL229-EL235
Journal	Journal of the Acoustical Society of America
Volume	132
Issue number	3
DOIs	https://doi.org/10.1121/1.4739251
State	Published - Sep 2012

Bibliographical note

Funding Information:
This work was supported by the NSF IGERT Sensor Science, Engineering and Informatics. Additional support was provided by the Maine Space Grant Consortium, University of Maine, and the Bar Harbor Whale Watch.

ASJC Scopus subject areas

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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title = "Radiated noise from commercial ships in the Gulf of Maine: Implications for whale/vessel collisions",

abstract = "To understand mysticete acoustic-based detection of ships, radiated noise from high-speed craft, cruise ships, catamarans and fishing vessels was recorded June-September 2009. Calibrated acoustic data (2500 Hz) from a vertical hydrophone array was combined with ship passage information. A cruise ship had the highest broadband source level, while a fishing vessel had the lowest. Ship noise radiated asymmetrically and varied with depth. Bow null-effect acoustic shadow zones were observed for all ship classes and were correlated with ship-length-to-draft-ratios. These shadow zones may reduce ship detection by near-surface mysticetes.",

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AU - Allen, J. Kaitlyn

AU - Peterson, Michael L.

AU - Sharrard, George V.

AU - Wright, Dana L.

AU - Todd, Sean K.

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N2 - To understand mysticete acoustic-based detection of ships, radiated noise from high-speed craft, cruise ships, catamarans and fishing vessels was recorded June-September 2009. Calibrated acoustic data (2500 Hz) from a vertical hydrophone array was combined with ship passage information. A cruise ship had the highest broadband source level, while a fishing vessel had the lowest. Ship noise radiated asymmetrically and varied with depth. Bow null-effect acoustic shadow zones were observed for all ship classes and were correlated with ship-length-to-draft-ratios. These shadow zones may reduce ship detection by near-surface mysticetes.

AB - To understand mysticete acoustic-based detection of ships, radiated noise from high-speed craft, cruise ships, catamarans and fishing vessels was recorded June-September 2009. Calibrated acoustic data (2500 Hz) from a vertical hydrophone array was combined with ship passage information. A cruise ship had the highest broadband source level, while a fishing vessel had the lowest. Ship noise radiated asymmetrically and varied with depth. Bow null-effect acoustic shadow zones were observed for all ship classes and were correlated with ship-length-to-draft-ratios. These shadow zones may reduce ship detection by near-surface mysticetes.

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Radiated noise from commercial ships in the Gulf of Maine: Implications for whale/vessel collisions

Abstract

Bibliographical note

ASJC Scopus subject areas

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