Underwater construction and operational noise at alpha ventus

Book Chapter

Title: Underwater construction and operational noise at alpha ventus
Authors: Betke, K.
Publication Date:
January 01, 2014
Book Title: Ecological Research at the Offshore Windfarm Alpha Ventus: Challenges, Results and Perspectives
Chapter: 15
Pages: 171-180
Publisher: Springer
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Document Access

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Citation

Betke, K. (2014). Underwater construction and operational noise at alpha ventus. Ecological Research at the Offshore Windfarm Alpha Ventus: Challenges, Results and Perspectives (pp. 171-180). Springer.
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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