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Ecological Research at the Offshore Windfarm alpha ventus pp 171–180Cite as

Underwater construction and operational noise at alpha ventus

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Abstract

Between April and August 2009, an extensive monitoring programme was carried out at alpha ventus to determine and quantify the underwater noise produced by the installation of the wind turbine foundations (jackets and tripods). The sound measurements took place between April and August 2009. Most recordings were made with autonomous systems. Measurement distances were between 800 and 2,400 m, and at about 16 km distance from alpha ventus within the Borkum Reef Ground SCI. During the installation of a tripod, a prototype noise mitigation (Small Bubble Curtain) system was tested and evaluated. Measurements of operational noise were made in May and June 2011. This was the first operating noise measurement on wind turbines in the 5 MW class; until then, only smaller turbines had been evaluated.

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Author information

Authors and Affiliations

  1. itap – institute für technical and applied physics GmbH, Marie-Curie-Str. 8, 26129, Oldenburg, Germany

    Klaus Betke

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  1. Klaus Betke
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Editors and Affiliations

  1. Hamburg, Germany

    Federal Maritime and Hydrographic Agency

  2. Berlin, Germany

    Federal Ministry for the Environment, Nature Conservation and Nuclear Safety

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© 2014 Springer Fachmedien Wiesbaden

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Betke, K. (2014). Underwater construction and operational noise at alpha ventus . In: Federal Maritime and Hydrographic Agency, ., Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, . (eds) Ecological Research at the Offshore Windfarm alpha ventus. Springer Spektrum, Wiesbaden. https://doi.org/10.1007/978-3-658-02462-8_15

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