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Acoustic scattering from density and sound speed gradients : modeling of oceanic pycnoclines

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dc.contributor.author Ross, Tetjana
dc.contributor.author Lavery, Andone C.
dc.date.accessioned 2012-03-01T19:21:32Z
dc.date.available 2012-03-01T19:21:32Z
dc.date.issued 2011-12-20
dc.identifier.citation Journal of the Acoustical Society of America 131 (2012): EL54-EL60 en_US
dc.identifier.uri http://hdl.handle.net/1912/5064
dc.description Author Posting. © Acoustical Society of America, 2012. 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 131 (2012): EL54-EL60, doi:10.1121/1.3669394. en_US
dc.description.abstract A weak-scattering model that allows prediction of acoustic scattering from oceanic pycnoclines (and the accompanying sound speed gradients) based on hydrographic profiles is described. Model predictions, based on profiles from four locations, indicate that scattering from oceanic pycnoclines is measurable using standard scientific sonars operating at frequencies up to 200 kHz but generally only for pycnocline thicknesses less than 10 m. Accurate scattering models are key to assessing whether acoustic remote sensing can be used to map oceanic pycnoclines and for determining whether scattering from pycnoclines needs to be taken into account when estimating, for instance, zooplankton abundance from acoustic data. en_US
dc.format.mimetype application/pdf
dc.publisher Acoustical Society of America en_US
dc.relation.uri http://dx.doi.org/10.1121/1.3669394
dc.subject Acoustic wave scattering en_US
dc.subject Acoustic wave velocity en_US
dc.subject Hydrophones en_US
dc.subject Oceanographic equipment en_US
dc.subject Oceanographic techniques en_US
dc.subject Remote sensing en_US
dc.subject Sonar en_US
dc.subject Underwater sound en_US
dc.title Acoustic scattering from density and sound speed gradients : modeling of oceanic pycnoclines en_US
dc.type Article en_US
dc.identifier.doi 10.1121/1.3669394


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