Noise generated by offshore impact pile driving radiates into the air, water and sediment. Predicting noise levels around the support structures at sea is required to estimate the effects of the noise on marine life. Based on high demands developing renewable energy source, the United States will begin the first pile driving within one to two years. It is necessary to investigate acoustic impact using our previously verified coupled Finite Element (Commercial FE code Abaqus) and Monterey Miami Parabolic Equation (2D MMPE) models (J. Acoust. Soc. Am. 131(4), p. 3392, 2012). In the present study, we developed a new coupled FE-MMPE model for the identification of zone of injury due to offshore impact pile driving. FE analysis produced acoustic pressure outputs on the surface of the pile which are used as a starting field for a long range 2D MMPE propagation model. It calculates transmission loss for N different azimuthal directions as function of distance from the location of piling with the inputs of corresponding bathymetry and sediment properties. We will present predicted zone of injury by connecting N different distances of equivalent level fishes may get permanent injury due to the first offshore wind farm installation in the U.S..
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2 June 2013
ICA 2013 Montreal
2–7 June 2013
Montreal, Canada
Noise: Session 3aNSa: Wind Turbine Noise I
May 14 2013
Predicting underwater radiated noise levels due to the first offshore wind turbine installation in the U.S.
Huikwan Kim;
Huikwan Kim
University of Rhode Island, 215 South Ferry Road, Narragansett, RI 02882
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James H. Miller;
James H. Miller
University of Rhode Island, 215 South Ferry Road, Narragansett, RI 02882
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Gopu R. Potty
Gopu R. Potty
Ocean Engineering, University of Rhode Island, Narragansett, RI 02882
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Proc. Mtgs. Acoust. 19, 040067 (2013)
Article history
Received:
January 22 2013
Accepted:
January 30 2013
Citation
Huikwan Kim, James H. Miller, Gopu R. Potty; Predicting underwater radiated noise levels due to the first offshore wind turbine installation in the U.S.. Proc. Mtgs. Acoust. 2 June 2013; 19 (1): 040067. https://doi.org/10.1121/1.4799983
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