» Sound Source » Helicopters

EIA Database

Cetacean stock assessment in relation to exploitation and production industry sound

2009
Open Access Report

Final Report

LGL

This project investigated the relationship between the oil industry‘s offshore E&P activities and trends in the distribution, abundance and rates of increase of key cetacean stocks...
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Keywords: Cetaceans, Stock assessment

Anthropogenic noise and the endangered Cook Inlet beluga whale, Delphinapterus leucas: Acoustic considerations for management

2018
Open Access Journal Article

Marine Fisheries Review

Castellote, Manuel, Thayre Bruce, Mahoney Michael, Mondragon Jeffrey, Lammers Marc O., and Small Robert J.

Anthropogenic noise has been identified as a major threat for the recovery of the endangered Cook Inlet beluga, Delphinapterus leucas, population, but little is known about...
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Keywords: Anthropogenic noise, Beluga, Cook inlet, Dredging, Fighter jet, Four unidentified noise sources, Helicopter, Jet Aircrafts, Outboard motor, Pile driving, Propeller Aircrafts, Ship, Sub-bottom profiler

Estimating the sound speed of a shallow-water marine sediment from the head wave excited by a low-flying helicopter

2017
Pay-walled Peer Reviewed Publication

Journal of the Acoustical Society of America

Bevans, D. A. and Buckingham, M. J.

The frequency bandwidth of the sound from a light helicopter, such as a Robinson R44, extends from about 13 Hz to 2.5 kHz. As such, the...
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Keywords: Helicopter, Underwater sound speed