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Using shipping noise for sound speed inversion in coastal areas

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dc.contributor.authorSantos, Ana Bela
dc.contributor.authorFelisberto, Paulo
dc.contributor.authorJesus, Sergio
dc.date.accessioned2019-11-20T15:07:55Z
dc.date.available2019-11-20T15:07:55Z
dc.date.issued2017
dc.description.abstractPassive sound speed estimation using radiated ship noise is an appealing approach for long-term ocean observation close to ship lanes. In this paper we analyze the noise recorded in two drifting vertical line arrays (VLAs) deployed 1 km apart, in Setubal's underwater canyon area off the west coast of Portugal during the RADAR' 07 sea trial. Automatic Information System (AIS) recordings for this period reveal a major tanker passing in the area, with its acoustic signature observed in the spectrogram as a characteristic striation time-frequency pattern. By cross correlation and beamforming of the received signals at the VLAs we obtain propagating paths traversing the hydrophones of both VLAs and respective travel times. Such information is used for sound speed estimation. We discuss the applicability of the method to track sound speed perturbations using historical sound speed profiles for the area obtained from CMEMS (COPERNICUS Marine Environment Monitoring Service). This work is a contribution for application in a passive ocean acoustics framework for the estimation of sound speed perturbations in the water column.
dc.description.sponsorshipprojects SUBECO under the PO-Navy research program
dc.description.sponsorshipH European Research Program under project EMSODEV [676555]
dc.identifier.isbn978-1-5090-5278-3
dc.identifier.issn0197-7385
dc.identifier.urihttp://hdl.handle.net/10400.1/13280
dc.language.isoeng
dc.peerreviewedyes
dc.publisherIEEE
dc.relationEMSO implementation and operation: DEVelopment of instrument module
dc.relation.ispartofseriesOceans-IEEE
dc.subjectTomography
dc.titleUsing shipping noise for sound speed inversion in coastal areas
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleEMSO implementation and operation: DEVelopment of instrument module
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/676555/EU
oaire.citation.conferencePlaceAberdeen, England
oaire.citation.titleOceans 2017 - Aberdeen
oaire.citation.titleOceans Aberdeen Conference
oaire.fundingStreamH2020
person.familyNameFelisberto
person.familyNameJesus
person.givenNamePaulo
person.givenNameSergio
person.identifier79549
person.identifier.ciencia-idD411-CBA8-85B8
person.identifier.orcid0000-0001-7542-4332
person.identifier.orcid0000-0002-6021-1761
person.identifier.ridM-9474-2013
person.identifier.scopus-author-id6508039890
person.identifier.scopus-author-id7003729485
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsrestrictedAccess
rcaap.typeconferenceObject
relation.isAuthorOfPublication6574c278-a803-4dbe-9140-4cd8272027db
relation.isAuthorOfPublicatione0226ece-3767-4beb-ab80-868e8897c14a
relation.isAuthorOfPublication.latestForDiscoverye0226ece-3767-4beb-ab80-868e8897c14a
relation.isProjectOfPublication8fb3832d-643a-418c-af87-83788e2a16c2
relation.isProjectOfPublication.latestForDiscovery8fb3832d-643a-418c-af87-83788e2a16c2

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