Sorry, you need to enable JavaScript to visit this website.

Environmental acoustic noise observations in Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica)

TitoloEnvironmental acoustic noise observations in Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica)
Tipo di pubblicazionePresentazione a Congresso
Anno di Pubblicazione2015
AutoriPensieri, S., Bozzano R., Schiano M.E., Pensieri L., Traverso F., Trucco A., Picco P., and Bordone A.
Conference Name2014 Oceans - St. John's, OCEANS 2014
ISBN Number9781479949182
Parole chiaveAcoustic impacts, Acoustic measurements, Acoustic measuring instruments, Acoustic noise, Acoustic propagation, Acoustic variables measurement, acoustics, antarctica, Environmental acoustics, Gesture recognition, Ice, Meteorological parameters, Passive measurements, Sea ice, Terra nova bays, Underwater acoustics
Abstract

Underwater acoustic measurements have been recently carried out in Tethys Bay (Ross Sea, Antarctica) during the XXIX Italian Antarctic Expedition to support acoustic propagation studies in the area and to investigate the environmental noise. Tethys Bay is a small deep cove close to the Antarctic Italian base Mario Zucchelli Station (Baia Terra Nova -74°42' S e 164°07' E) and covered with sea-ice for most of the year. During the period of the experiment (November 2013) the pack-ice had an almost constant thickness of about 2.2 m, so that the measurements were performed deploying the instruments into the sea from holes drilled through the pack ice. The holes were located along the bay axis at a distance of about 500 m each other. The sea depth was around 200 m except for the hole close to the coast, where the sea depth was only 25 m. An hydrophone RESON TC 4032 was located in the outermost hole, while the acoustic source, a transceiver transmitting FSK pulses at 11 kHz, was placed in sequence in the other three holes. Every time, the measurements were performed at 0, 20 and 45 m depth for each configuration. Furthermore during the experiment, sea temperature, salinity and currents, as well as the main meteorological parameters were continuously measured. The analysis here reported mainly focuses on the acquired acoustic passive data. The passive measurements evidenced that the signal was generally dominated by different sounds from seals, which was prevailing on the noise due to human activities. © 2014 IEEE.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84921744758&doi=10.1109%2fOCEANS.2014.7003196&partnerID=40&md5=3bed1c7b377a4adf9aea4193075a566d
DOI10.1109/OCEANS.2014.7003196
Citation KeyPensieri2015