An automated real-time vessel sound measurement system for calculating monopole source levels using a modified version of ANSI/ASA S12.64-2009.

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Date
2016Author
Hannay, David E.
Li, Zizheng
Mouy, Xavier
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Underwater noise from vessels permeates many of the
world’s oceans. While vessel sound emissions are at levels
typically below those that would be acutely injurious to
marine fauna, this noise can interfere with normal use of
sounds, such as for prey and predator detection,
socialization and mate attraction. Exposures to vessel noise
over extended times, especially in key habitat areas, is likely
to lead to chronic adverse effects including reduced feeding
efficiency and difficulty finding mates.
Assessments of the effects of shipping noise on marine
fauna often use acoustic propagation models to predict the
levels of sound exposure. These models require accurate
vessel sound emission source levels. American National
Standards Institute (ANSI) standard S12.64-2009
(reaffirmed in 2014) describes procedures for measuring
underwater sound from ships. The standard deals with
radiated noise level (RNL) source levels that assume 20
Log(r) transmission loss (TL) between the v.....
Journal
Canadian AcousticsVolume
44Issue
3Page Range
2pp.Document Language
enSustainable Development Goals (SDG)
14.aEssential Ocean Variables (EOV)
Ocean soundMaturity Level
MatureCitation
Hannay, D.E., Li, Z. and Mouy. X. (2016) An automated real-time vessel sound measurement system for calculating monopole source levels using a modified version of ANSI/ASA S12.64-2009. Canadian Acoustics, 44(3), 2pp. DOI: http://dx.doi.org/10.25607/OBP-1883Collections