Port-operated systems for automated vessel underwater noise measurements

DavidHannay,JASCOAppliedSciencesUNOLSGreenBoatsandPortsWorkshop,Portland,August30,2018

JASCOAppliedSciences

Overview

•  Context:underwatershipnoiseeffectsonmarinefauna

• AutomatedUnderwaterListeningStaNons

• Datatransmissionandprocessing• VesselNoiseMeasurements• Howmeasurementscanbeusedbyportsformanagingvesselnoise

hRps://www.portvancouver.com/wp-content/uploads/2016/04/ECHO-Program-Underwater-Noise-Infographic-April-2016.pdf

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OriginalListeningSpaceListeningSpacereducedbymaskingnoiseListeningSpaceinquietcondiNons

ManagingUnderwaterShippingNoise

1. UnderstanditsspaNalandtemporaldistribuNon

2. Determinewhen/wheresensiNvefaunamaybeexposed

3. DevelopregulaNons(orpreferablyincenNves)toinfluencenoisyvesselstobecomequieter

4. ImplementmiNgaNonmeasurestoreduceexposures,e.g.:-slowvesselswhenanimalsarepresent-moveshippinglanestoavoidsensiNveareas-implementno-goperiodstocreatequietNmes

UnderwaterListeningSta4ons:•  Monitortrendsinunderwaternoise•  Detectmarinemammalsnearshippinglanes•  Measurenoiseemissionsofindividualships•  Measureeffec4venessofmi4ga4ons

UnderwaterListeningStaNonarraysdeployedbyJASCOforPortofVancouver’sECHOProgram

Ø ULSdeployedin170mwaterdepthoninboundshippinglane

Ø SubseafibreopNcdatacablespluggedintoasubseanetworkoperatedbyOceanNetworksCanada(ONC)

Ø AcousNcdataaretransmiRedtoshoreinreal-NmeandprocessedimmediatelybyJASCO’sautomatedanalysissystems

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Ship measurements geometry

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Themeasurementzone(shaded)is1kmlongand300mwide

•  ApproximatelymeetsANSIS12.64VesselNoiseMeasurementStandard,whichissimilartoISO17208-1

•  Pilotshavecontrolofvessels,allowingsystemaNcpassesthroughaprescribedmeasurementzone

•  Othervesselsareabletousethissystem

AutomatedAcous4cDataAnalysis

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ShipSound: Vessel Noise Emission Measurement System

ComparisonsofULSmeasurements(blackdotsandpercenNlelines)withNoiseCerNficaNonOrganizaNonThresholds(heavierred,greenandbluelines)

Note:RNL=RadiatedNoiseLevel,MSL=MonopoleSourceLevel

ResearchVessels

• The ECHO Program’s ULS has acquired more than 7000 accepted vessel measurements since September 2015

• ECHO offers the reports to vessel owners for free, and these can be used by the owners to meet requirements of certification organizations such as Green Marine

• A key plan for this system is to rank the noise emissions of vessels visiting the Port. The intention is to incentivize vessels that are quieter by providing rebates on port fees

Port of Vancouver’s use of these measurements

hRp://seaRleNmes.nwsource.com/html/localnews/2018025831_orcas20m.html

TelemeteredAcous4cSta4on(doesnotneedacable)

ThankYou!QuesNonsarewelcome