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dc.contributor.authorHan, Dong-Gyan
dc.contributor.authorKim, Sookwan
dc.contributor.authorLandrø, Martin
dc.contributor.authorson, Wuju
dc.contributor.authorLee, Dae Hyeok
dc.contributor.authorChoi, Yeonjin
dc.contributor.authorJin, Young Keun
dc.contributor.authorHong, Jong Kuk
dc.contributor.authorKang, Sung-Ho
dc.contributor.authorRhee, Tae Siek
dc.contributor.authorShin, Hyoung Chul
dc.contributor.authorLa, Hyoung Sul
dc.description.abstractSeismic airgun sound was measured with an autonomous passive acoustic recorder as a function of distance from 18.6 to 164.2 km in shallow water (<70 m) at the continental shelf of the East Siberian Sea in September 2019. The least-square regression curves were derived in the zero-to-peak sound pressure level, sound exposure level, and band level in a frequency range between 10 and 300 Hz using the initial amplitude scaled from the near-field hydrophone data. In addition, propagation modeling based on the parabolic equation with the measured source spectrum was performed for range-dependent bathymetry, and the results were compared with the band level of the measurements. The sediment structure of the measurement area was a thin layer of iceberg-scoured postglacial mud overlying a fast bottom with high density based on grounding events of past ice masses. The observed precursor arrivals, modal dispersion, and rapid decrease in spectrum level at low frequencies can be explained by the condition of the high-velocity sediment. Our results can be applied to studies on the inversion of ocean boundary conditions and measurement geometry and basic data for noise impact assessment.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleSeismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signatureen_US
dc.title.alternativeSeismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signatureen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.source.journalFrontiers in Marine Scienceen_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal