Evaluation of kurtosis-corrected sound exposure level as a metric for predicting onset of hearing threshold shifts in harbor porpoises (Phocoena phocoena)

Application of a kurtosis correction to frequency-weighted sound exposure level (SEL) improved predictions of risk of hearing damage in humans and terrestrial mammals for sound exposures with different degrees of impulsiveness. To assess whether kurtosis corrections may lead to improved predictions for marine mammals, corrections were applied to...

Erratum: Evaluation of kurtosis-corrected sound exposure level as a metric for predicting onset of hearing threshold shifts in harbor porpoises (Phocoena phocoena) (The Journal of the Acoustical Society of America (2022) 152 (295-301) DOI: 10.1121/10.0012364)

An error was found in Table I of the original paper (von Benda-Beckman et al., 2022), where the two kurtosis values for intermittent and continuous sonar signals at 6.5 kHz were inadvertently interchanged. The correct values were used in the analysis and, thus, the error in Table I did not affect our results. A corrected version of Table I is...

Report on Task 4 of project "SVOW OGP JIP airgun measurements: reporting

Measurements of sound emitted from airguns and airgun clusters are described. Measurements were made in 2007 and 2009-2010 in fjord environments in Norway and for various airgun types, chamber pressures, operating depths and airgun volumes. For each combination of these parameters, a sequence of up to 50 shots was performed, resulting in a few...

Characterization of the acoustic output of single marine-seismic airguns and clusters: The Svein Vaage dataset

The acoustical output of marine-seismic airguns is determined from recordings of the sound pressure made on hydrophones suspended below a floating barge from which the airguns are also deployed. The signals from multiple types of airguns are considered and each type is operated over a range of deployment depths and chamber pressures. The...

Application of damped cylindrical spreading to assess range to injury threshold for fishes from impact pile driving

Environmental risk assessment for impact pile driving requires characterization of the radiated sound field. Damped cylindrical spreading (DCS) describes propagation of the acoustic Mach cone generated by striking a pile and predicts sound exposure level (LE) versus range. For known water depth and sediment properties, DCS permits extrapolation...

Application of kurtosis to underwater sound

Regulations for underwater anthropogenic noise are typically formulated in terms of peak sound pressure, root-mean-square sound pressure, and (weighted or unweighted) sound exposure. Sound effect studies on humans and other terrestrial mammals suggest that in addition to these metrics, the impulsiveness of sound (often quantified by its kurtosis...

A Parametric Analysis and Sensitivity Study of the Acoustic Propagation for Renewable Energy

As countries explore renewable energy opportunities, offshore wind farms are being developed along coastlines. To construct these wind farms, piles are driven into the seafloor as foundational structures for the turbines. Pile driving involves risk of noise pollution that can affect marine fauna. To mitigate these risks, risk assessments and...

Pile driving using POSCO High-damping steel: Final report draft 11-2-2019