2024-03-28T11:17:29Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/62202016-02-16T03:12:32Zcom_10261_32com_10261_4col_10261_411
Underwater noise impact of offshore wind farms during construction and operation phases
Cobo, Pedro
Kormann, Jean
Ranz Guerra, Carlos
Offshore wind farms
Underwater noise impact
Airborne noise impact
Construction phase
Operation phase
Acoustic propagation model
Communication presented at the 14th International Congress on Sound Vibration, Cairns, Australia, 9-12 July 2007.
The two potentially noisier phases of an offshore wind farm are construction and operation. During the construction phase, high noise levels are radiated to the environment, both in air and water, due to engineering works such as pile driving. In the operation phase, the acoustic power radiated by each wind turbine is much lesser, but their usual life-span is 20-25 years. The aim of this paper is to describe a normal mode propagation model designed to predict the underwater noise impact afforded for an offshore wind farm in both phases. The model needs as inputs the acoustic data of the underwater sources (power level and spectrum), the oceanographic data of the medium (sound velocity and density in water and sediments, wind speed, depth, acoustic spreading law in the area) and the coordinates of the wind turbines. As a result, the model provides both the 2D overall noise map around the farm or the overall noise level along a line, as compared to the background noise.
This research has been supported by the CSIC, through Project PIF 200530F0081.
Peer reviewed
2008-07-28T19:27:31Z
2008-07-28T19:27:31Z
2007-07
comunicaciĆ³n de congreso
http://purl.org/coar/resource_type/c_5794
14th International Congress in Sound and Vibration (ICSV14)
978-0-7334-2516-5
http://hdl.handle.net/10261/6220
en
open
577635 bytes
application/pdf
International Institute of Acoustics and Vibration