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Modelling techniques for underwater noise generated by tidal turbines in shallow water

Record type: Conference or Workshop Item (Paper)

The modelling of underwater noise sources and their potential impact on the marine environment is considered, focusing on tidal turbines in shallow water. The requirement for device noise prediction as part of environmental impact assessment is outlined and the limited amount of measurement data and modelling research identified. Following the identification of potential noise sources, the dominant flowgenerated sources are modelled using empirical techniques. The predicted sound pressure level due to inflow turbulence for a typical turbine is estimated to give third-octave-bandwidth pressure levels of 119 dB re 1 ?Pa at 20 metres from the turbine at individual frequencies. This preliminary estimate reveals that this noise source alone is not expected to cause permanent or temporary threshold shift in the marine animals studied.

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Citation

Lloyd, Thomas P., Turnock, Stephen R. and Humphrey, Victor F. (2011) Modelling techniques for underwater noise generated by tidal turbines in shallow water At Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering, Netherlands. 19 - 24 Jun 2011. 9 pp.

More information

Published date: June 2011
Venue - Dates: Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering, Netherlands, 2011-06-19 - 2011-06-24
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 192957
URI: http://eprints.soton.ac.uk/id/eprint/192957
PURE UUID: 0c6b8db2-09ea-4117-b416-94740b3a48d8
ORCID for Stephen R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400
ORCID for Victor F. Humphrey: ORCID iD orcid.org/0000-0002-3580-5373

Catalogue record

Date deposited: 13 Jul 2011 10:13
Last modified: 18 Jul 2017 11:30

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