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.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

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


    Beteiligte:
    Alexander, Polly (Autor:in) / Duncan, Alec (Autor:in) / Bose, Neil (Autor:in) / Wilkes, Daniel (Autor:in) / Lewis, Ron (Autor:in) / de Souza, Paulo (Autor:in)

    Erschienen in:

    Ocean Engineering ; 82 ; 52-64


    Erscheinungsdatum :

    2014


    Format / Umfang :

    13 Seiten, 34 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Dynamics of the dayside Aurora Australis

    Rand, J.L. | Online Contents | 2010


    Aurora

    Anger, C. | NTRS | 1974



    t.s.m.y. Aurora

    Engineering Index Backfile | 1964


    Oldsmobile Aurora

    Jost,K. / General Motors,Oldsmobile Div.,US | Kraftfahrwesen | 2000