Scaling offshore pile driving noise: examples for scenarios with and without a big bubble curtain

Publikationstyp
Conference Paper
Date Issued
2022-06
Sprache
English
Author(s)
Pein, Jonas von 
Lippert, Tristan  
Lippert, Stephan  
Estorff, Otto von  
Institut
Modellierung und Berechnung M-16  
TORE-URI
http://hdl.handle.net/11420/14577
Journal
Proceedings of the Institute of Acoustics  
Volume
44
Article Number
070015
Citation
International Conference on Underwater Acoustics (ICUA 2022)
Contribution to Conference
International Conference on Underwater Acoustics, ICUA 2022  
Publisher DOI
10.1121/2.0001622
Scopus ID
2-s2.0-85145874169
For the installation of offshore wind turbines, large pile foundations are driven into the seabed. The pile driving process can lead to high sound pressure levels in the water column. These levels can reach magnitudes that are potentially dangerous for the marine fauna. Therefore, in many countries the emitted sound pressure levels have to comply with limit values in order to protect the marine environment. Noise mitigation measures are usually necessary to fulfill these limits. Prior to wind farm construction, complex numerical models are often applied for a precise prediction of the occurring sound pressure levels to be expected. In order to allow a simplified first estimation even without such detailed calculation models, scaling laws provide an alternative approach. Within this contribution, already existing scaling laws for unmitigated pile driving are updated for scenarios including a big bubble curtain. The sound exposure levels of six different sites are estimated applying scaling laws for unmitigated and mitigated pile driving noise and compared to the actual measurements.