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Noise characterisation of the Aurora Australis while stationary in Antarctic sea ice


Alexander, P and Duncan, A and Bose, N and Wilkes, D and Lewis, R and de Souza, P, Noise characterisation of the Aurora Australis while stationary in Antarctic sea ice, Ocean Engineering, 82 pp. 52-64. ISSN 0029-8018 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Elsevier

DOI: doi:10.1016/j.oceaneng.2014.02.030


This work investigates the underwater noise propagation of the primary vessel used by the Australian Antarctic Division Aurora Australis while stationary in a configuration and location suitable for under-ice Autonomous Underwater Vehicle (AUV) deployment. It outlines a novel method for recording and validating the noise of a vessel using available equipment and standard deployment options. Numerical modelling using the Fast Multipole Boundary Element Method (FMBEM) is combined with the response to a calibrated source to assess the limitations and residual uncertainty of the experiment. The results of this work indicate that there is a 10 dB re 1 μPa reduction in mean noise by removal of main engine noise and a low point in ship noise at 3.8 kHz. Two hundred metres depth was found to be a preferred depth for uniformity in the noise field.

Item Details

Item Type:Refereed Article
Keywords:Ship, noise, sea ice, Antarctic
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Naval architecture
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Alexander, P (Ms Polly Alexander)
UTAS Author:Bose, N (Professor Neil Bose)
ID Code:92509
Year Published:2014
Web of Science® Times Cited:5
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2014-06-20
Last Modified:2018-03-15

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