Bubble curtain effectiveness during impact pile driving for monopile installation at the Coastal Virginia Offshore Wind project

2020 ◽  
Vol 148 (4) ◽  
pp. 2627-2628
Author(s):  
Jennifer L. Amaral ◽  
Adam S. Frankel ◽  
James H. Miller ◽  
Gopu Potty ◽  
Ying T. Lin ◽  
...  
Keyword(s):  
Offshore Wind ◽  
Pile Driving ◽  
Bubble Curtain

scholarly journals Wind creates a natural bubble curtain mitigating porpoise avoidance during offshore pile driving

2016 ◽  
Author(s):  
Anne-Cécile Dragon ◽  
Miriam J. Brandt ◽  
Ansgar Diederichs ◽  
Georg Nehls
Keyword(s):  
Pile Driving ◽  
Bubble Curtain

Prediction of underwater noise and far field propagation due to pile driving for offshore wind farms

2013 ◽  
Author(s):  
Stephan Lippert ◽  
Tristan Lippert ◽  
Kristof Heitmann ◽  
Otto Von Estorff
Keyword(s):  
Wind Farms ◽  
Offshore Wind ◽  
Pile Driving ◽  
Far Field ◽  
Underwater Noise ◽  
Offshore Wind Farms

scholarly journals Framework for assessing impacts of pile-driving noise from offshore wind farm construction on a harbour seal population

2013 ◽  
Vol 43 ◽  
pp. 73-85 ◽  
Author(s):  
Paul M. Thompson ◽  
Gordon D. Hastie ◽  
Jeremy Nedwell ◽  
Richard Barham ◽  
Kate L. Brookes ◽  
...  
Keyword(s):  
Wind Farm ◽  
Harbour Seal ◽  
Offshore Wind ◽  
Pile Driving ◽  
Offshore Wind Farm ◽  
Seal Population

Noise field characterization in the habitat of the East Taiwan Strait Indo-Pacific Humpback Dolphin during the pile driving activity of demonstration offshore wind farm

2016 ◽  
Vol 140 (4) ◽  
pp. 3022-3022 ◽  
Author(s):  
Chi-Fang Chen ◽  
Shane Guan ◽  
Lien-Sian Chou ◽  
Ruey Chang Wei ◽  
William W. Hu ◽  
...  
Keyword(s):  
Wind Farm ◽  
Taiwan Strait ◽  
Offshore Wind ◽  
Pile Driving ◽  
Offshore Wind Farm ◽  
Noise Field

Noise reduction of pile driving and unexploded ordinance detonations at offshore wind farm installation sites

2017 ◽  
Vol 141 (5) ◽  
pp. 3847-3847
Author(s):  
Mark S. Wochner ◽  
Kevin M. Lee ◽  
Andrew R. McNeese ◽  
Preston S. Wilson
Keyword(s):  
Noise Reduction ◽  
Wind Farm ◽  
Offshore Wind ◽  
Pile Driving ◽  
Offshore Wind Farm ◽  
Unexploded Ordinance

Monitoring the acoustic effects of pile driving for the first offshore wind farm in the United States

2016 ◽  
Vol 139 (4) ◽  
pp. 2181-2181 ◽  
Author(s):  
Arthur E. Newhall ◽  
Ying T. Lin ◽  
James F. Miller ◽  
Gopu R. Potty ◽  
Kathy Vigness-Raposa ◽  
...  
Keyword(s):  
United States ◽  
Wind Farm ◽  
The United States ◽  
Offshore Wind ◽  
Pile Driving ◽  
Offshore Wind Farm

The impact of bubble curtains on seismic air-gun signatures and its high-frequency emission

Geophysics ◽  
2020 ◽  
Vol 85 (2) ◽  
pp. P1-P11
Author(s):  
Daniel Wehner ◽  
Martin Landrø
Keyword(s):  
High Frequency ◽  
Air Injection ◽  
Offshore Wind ◽  
Peak Amplitude ◽  
Common Source ◽  
High Frequencies ◽  
Air Gun ◽  
Source Signal ◽  
The Impact ◽  
Bubble Curtain

In marine seismic acquisition, air guns are the most common source and, in recent years, research on their impact on the marine environment has increased. The main focus is on the reduction of emitted high frequencies, approximately greater than 200 Hz, which are normally not useful for seismic imaging. Therefore, potential ways to reduce the high frequencies from air guns are investigated and the development of alternative source types has increased. We have investigated the impact of bubble curtains on the source signature from seismic air guns because bubble curtains are known to mitigate high frequencies in other applications, e.g., pile driving for offshore wind farms. We have conducted tank experiments with two different configurations of bubble curtains around a single air gun and compared the results to the conventional source signature without a bubble curtain. The two different bubble curtains vary in size and in the way they are attached to the air gun. The amount of injected air into the bubble curtains is varied for both configurations. We compare the measured results to simulated data using a common model for air-gun source signatures. The results indicate a reduced peak amplitude with increasing air injection through the bubble curtain. This corresponds to a gradually decreasing frequency content for frequencies greater than 50 Hz. The frequencies of the source signal of less than 50 Hz are practically unaffected by the bubble curtain. In addition, the bubble time period of the source signal is slightly increased with an increasing amount of air injection through the bubble curtain. The main cause for the reduced peak amplitude is likely to be a buffer effect of the bubble curtain on the released air. Hence, a bubble curtain concentrated around the air-gun ports could be an efficient and practical solution to reduce the high-frequency acoustic emission from air guns.

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