Underwater acoustic characterisation of unexploded ordnance disposal using deflagration

Journal Article

Title: Underwater acoustic characterisation of unexploded ordnance disposal using deflagration

Author:

Robinson, S.; Wang, L.; Cheong, S.; Lepper, P.; Marubini, F.; Hartley, J.

Publication Date:

November 1, 2020

Journal:

Marine Pollution Bulletin

Volume:

160

Pages:

Publisher:

Elsevier

Affiliation

National Physical Laboratory (NPL), Loughborough University, Hartley Anderson

Technology:

Wind Energy, Fixed Offshore Wind

Stressor:

Noise

Receptor:

Marine Mammals

Language:

English

Document Access

Website:

External Link

Attachment:

Access File

Citation

APA
BibTex
RIS

Robinson, S.; Wang, L.; Cheong, S.; Lepper, P.; Marubini, F.; Hartley, J. (2020). Underwater acoustic characterisation of unexploded ordnance disposal using deflagration. Marine Pollution Bulletin, 160, 9. https://doi.org/10.1016/j.marpolbul.2020.111646

@article{Robinson-2020-,
author = {Robinson, S and Wang, L and Cheong, S and Lepper, P and Marubini, F and Hartley, J},
title = {Underwater acoustic characterisation of unexploded ordnance disposal using deflagration},
journal = {Marine Pollution Bulletin},
year = {2020},
month = {nov},
publisher = {Elsevier},
volume = {160},
pages = {9},
doi = {10.1016/j.marpolbul.2020.111646},
url = {https://www.sciencedirect.com/science/article/pii/S0025326X20307645},
keywords = {Wind Energy, Fixed Offshore Wind, Noise, Marine Mammals},
}

Export Citation to BibTex

TY - JOUR
TI - Underwater acoustic characterisation of unexploded ordnance disposal using deflagration
AU - Robinson, S
AU - Wang, L
AU - Cheong, S
AU - Lepper, P
AU - Marubini, F
AU - Hartley, J
T2 - Marine Pollution Bulletin
AB - The seabed off North West Europe contains much unexploded ordnance (UXO), posing a hazard to offshore developments such as windfarms. The typical removal method is through high-order detonation of a donor charge placed adjacent to the UXO. This method poses a risk of injury or death to marine mammals and other fauna from the high sound levels produced. This paper describes a controlled field experiment to compare the sound produced by high-order detonations with a low-order disposal method called deflagration, which uses a shaped charge of modest size, is less energetic, and offers reduced environmental impact from lower acoustic output. The results demonstrate a substantial reduction over high order detonation, with the peak sound pressure level and sound exposure level being more than 20 dB lower for the deflagration, and with the acoustic output depending only on the size of the shaped charge (rather than the size of the UXO).
DA - 2020/11//
PY - 2020
PB - Elsevier
VL - 160
SP - 9
UR - https://www.sciencedirect.com/science/article/pii/S0025326X20307645
DO - 10.1016/j.marpolbul.2020.111646
LA - English
KW - Wind Energy
KW - Fixed Offshore Wind
KW - Noise
KW - Marine Mammals
ER -

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Abstract

The seabed off North West Europe contains much unexploded ordnance (UXO), posing a hazard to offshore developments such as windfarms. The typical removal method is through high-order detonation of a donor charge placed adjacent to the UXO. This method poses a risk of injury or death to marine mammals and other fauna from the high sound levels produced. This paper describes a controlled field experiment to compare the sound produced by high-order detonations with a low-order disposal method called deflagration, which uses a shaped charge of modest size, is less energetic, and offers reduced environmental impact from lower acoustic output. The results demonstrate a substantial reduction over high order detonation, with the peak sound pressure level and sound exposure level being more than 20 dB lower for the deflagration, and with the acoustic output depending only on the size of the shaped charge (rather than the size of the UXO).