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Repositório Institucional da Produção Científica da Marinha do Brasil (RI-MB)

Please use this identifier to cite or link to this item: https://www.repositorio.mar.mil.br/handle/ripcmb/844717
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dc.contributor.authorJesus, Sérgio M.-
dc.contributor.authorXavier, Fabio Contrera-
dc.contributor.authorVio, Renato Peres-
dc.contributor.authorOsowsky, Jefferson-
dc.contributor.authorSimões, Marcus Vinicius-
dc.contributor.authorFagundes Netto, Eduardo Barros-
dc.date.accessioned2020-07-28T17:32:25Z-
dc.date.available2020-07-28T17:32:25Z-
dc.date.issued2020-
dc.identifier.urihttp://www.repositorio.mar.mil.br/handle/ripcmb/844717-
dc.description.abstractThis paper describes the lessons learned from the experiment BIOCOM’19 carried out in January 2019, in a shallow water bay off the island of Cabo Frio (RJ, Brazil). A dual accelerometer vector sensor hydrophone was deployed for two days, near a rocky shore covered with a significant benthic fauna. The results show that the frequency band above approximately 1.5 kHz is mostly associated with invertebrate biological noise and that the acoustic and the particle motion fields have a similar behavior, following the usual dawn-dusk activity pattern, and a coherent directivity content. At low frequencies, below 300 Hz, the acoustic pressure and the particle acceleration fields have significantly different spectral content along time. Many of these differences are due to anthropogenic noise sources related with nearby boating activity, while during quiet periods, they may be attributed to the biological activity from the rocky shorept_EN
dc.description.abstractThis paper describes the lessons learned from the experiment BIOCOM’19 carried out in January 2019, in a shallow water bay off the island of Cabo Frio (RJ, Brazil). A dual accelerometer vector sensor hydrophone was deployed for two days, near a rocky shore covered with a significant benthic fauna. The results show that the frequency band above approximately 1.5 kHz is mostly associated with invertebrate biological noise and that the acoustic and the particle motion fields have a similar behavior, following the usual dawn-dusk activity pattern, and a coherent directivity content. At low frequencies, below 300 Hz, the acoustic pressure and the particle acceleration fields have significantly different spectral content along time. Many of these differences are due to anthropogenic noise sources related with nearby boating activity, while during quiet periods, they may be attributed to the biological activity from the rocky shoreen_US
dc.language.isoengpt_BR
dc.publisherAcoustical Society of America (ASA)pt_BR
dc.rightsopenAccesspt_BR
dc.subjectCabo Frio, Ilha Do (RJ)pt_BR
dc.titleParticle motion measurements near a rocky shore off Cabo Frio Islandpt_EN
dc.typejournalArticlept_BR
dc.location.countryEUApt_BR
dc.subject.dgpmCiência, Tecnologia e Inovação-
Appears in Collections:Ciência, Tecnologia e Inovação: Coleção de Artigos

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