National Acoustic Laboratories Library

Measurements of underwater noise from the RV Investigator (Record no. 2584)

MARC details
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fixed length control field 02066nam a22001817a 4500
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control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20160617154958.0
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040 ## - CATALOGING SOURCE
Transcribing agency National Acoustic Laboratories
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Duncan, Alec
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Title Measurements of underwater noise from the RV Investigator
520 3# - SUMMARY, ETC.
Summary, etc Australia's Marine National Facility, operated by CSIRO, has recently taken delivery of a new, $126 million, multi-purpose blue-water marine research vessel, RV Investigator. The ship is equipped with an extensive suite of active acoustic instrumentation that include an omnidirectional sonar, three multibeam echosounders, six split beam scientific echo sounders, two acoustic Doppler current profilers and a sub-bottom profiler. Permanently installed seismic compressors also prepare the ship to undertake geophysical survey missions. The ship has been designed to maximise the performance of these systems through innovative hull design to minimise air bubble entrainment under the acoustic transducers, and by reducing the underwater sound radiated from the ship through an innovative propulsion system, coupled with advanced isolation of vibration from the primary power generation machinery. This paper discusses some recent underwater noise measurements that were carried out in southern Tasmanian waters following Det Norske Veritas (DNV) guidelines in order to determine baseline underwater noise signatures for the vessel, and to characterise the noise performance of the various acoustic instruments. The baseline measurements obtained are compared to the ship's design criteria of DNV Silent-R and the expected background wind and thermal noise. The potential variability in vessel noise spectra obtained when following DNV noise measurement guidelines are also discussed.
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Personal name Rudy Kloser
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Matthew Sherlock
773 0# - HOST ITEM ENTRY
Title Acoustics 2015 Hunter Valley 15-18 November 2015
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Uniform Resource Identifier <a href="http://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/392/p60.pdf?sequence=1&isAllowed=y">http://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/392/p60.pdf?sequence=1&isAllowed=y</a>
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Source of classification or shelving scheme Universal Decimal Classification
Koha item type Journal article

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