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dc.contributor.authorGodø, Olav Rune
dc.contributor.authorFoote, Kenneth G.
dc.contributor.authorDybedal, Johnny
dc.date.accessioned2010-04-29T18:01:39Z
dc.date.available2010-04-29T18:01:39Z
dc.date.issued2010-03-17
dc.identifier.citationJournal of the Acoustical Society of America 127 (2010): EL153-EL159en_US
dc.identifier.urihttp://hdl.handle.net/1912/3365
dc.descriptionAuthor Posting. © Acoustical Society of America, 2010. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 127 (2010): EL153-EL159, doi:10.1121/1.3336398.en_US
dc.description.abstractThe difference-frequency band of the Kongsberg TOPAS PS18 parametric sub-bottom profiling sonar, nominally 1–6 kHz, is being used to observe Atlantic herring. Representative TOPAS echograms of herring layers and schools observed in situ in December 2008 and November 2009 are presented. These agree well with echograms of volume backscattering strength derived simultaneously with the narrowband Simrad EK60/18- and 38-kHz scientific echo sounder, also giving insight into herring avoidance behavior in relation to survey vessel passage. Progress in rendering the TOPAS echograms quantitative is described.en_US
dc.description.sponsorshipWork supported by the Norwegian Research Council under Grant No. 184705 and the Office of Naval Research under Award No. N000140910482.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAcoustical Society of Americaen_US
dc.relation.urihttp://dx.doi.org/10.1121/1.3336398
dc.subjectEchoen_US
dc.subjectSonar detectionen_US
dc.subjectSonar signal processingen_US
dc.subjectUnderwater sounden_US
dc.titleDetecting Atlantic herring by parametric sonaren_US
dc.typeArticleen_US
dc.identifier.doi10.1121/1.3336398


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