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Open Access Estimation of underwater noise – a simplified method

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A set of procedures has been developed to allow preliminary estimates to be made of underwater noise and its effects on marine species. They do not require detailed acoustic survey data, either of the site or of the proposed plant. However, they still facilitate the comparison of different project proposals to assist in the optimisation of equipment layout and routing. Noise may be due to specific sources, such as ships and marine equipment, or assessed as a general background level. Some aspects of acoustic analysis applicable to more detailed environmental impact assessments are also described, particularly relevant when comparing noise spectra with audiometry data appropriate to different species of wildlife.

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Keywords: ENVIRONMENTAL IMPACT ASSESSMENT; MARINE EQUIPMENT NOISE; MASKING BANDWIDTH; MIXED LAYER DUCT; NOISE POWER LEVELS; SHALLOW WATER TRANSMISSION; UNDERWATER AUDIOMETRY

Document Type: Research Article

Publication date: November 1, 2005

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