Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature
Seismic 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 pr...
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Online Access: | https://hdl.handle.net/11250/3098988 https://doi.org/10.3389/fmars.2023.956323 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3098988 2023-11-12T04:16:34+01:00 Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature Han, Dong-Gyan Kim, Sookwan Landrø, Martin son, Wuju Lee, Dae Hyeok Choi, Yeonjin Jin, Young Keun Hong, Jong Kuk Kang, Sung-Ho Rhee, Tae Siek Shin, Hyoung Chul La, Hyoung Sul 2023 application/pdf https://hdl.handle.net/11250/3098988 https://doi.org/10.3389/fmars.2023.956323 eng eng Frontiers urn:issn:2296-7745 https://hdl.handle.net/11250/3098988 https://doi.org/10.3389/fmars.2023.956323 cristin:2134203 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no 10 Frontiers in Marine Science Peer reviewed Journal article 2023 ftntnutrondheimi https://doi.org/10.3389/fmars.2023.956323 2023-11-01T23:46:52Z Seismic 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. publishedVersion Article in Journal/Newspaper East Siberian Sea NTNU Open Archive (Norwegian University of Science and Technology) Frontiers in Marine Science 10 |
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NTNU Open Archive (Norwegian University of Science and Technology) |
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ftntnutrondheimi |
language |
English |
description |
Seismic 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. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Han, Dong-Gyan Kim, Sookwan Landrø, Martin son, Wuju Lee, Dae Hyeok Choi, Yeonjin Jin, Young Keun Hong, Jong Kuk Kang, Sung-Ho Rhee, Tae Siek Shin, Hyoung Chul La, Hyoung Sul |
spellingShingle |
Han, Dong-Gyan Kim, Sookwan Landrø, Martin son, Wuju Lee, Dae Hyeok Choi, Yeonjin Jin, Young Keun Hong, Jong Kuk Kang, Sung-Ho Rhee, Tae Siek Shin, Hyoung Chul La, Hyoung Sul Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature |
author_facet |
Han, Dong-Gyan Kim, Sookwan Landrø, Martin son, Wuju Lee, Dae Hyeok Choi, Yeonjin Jin, Young Keun Hong, Jong Kuk Kang, Sung-Ho Rhee, Tae Siek Shin, Hyoung Chul La, Hyoung Sul |
author_sort |
Han, Dong-Gyan |
title |
Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature |
title_short |
Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature |
title_full |
Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature |
title_fullStr |
Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature |
title_full_unstemmed |
Seismic airgun sound propagation in shallow water of the East Siberian shelf and its prediction with the measured source signature |
title_sort |
seismic airgun sound propagation in shallow water of the east siberian shelf and its prediction with the measured source signature |
publisher |
Frontiers |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3098988 https://doi.org/10.3389/fmars.2023.956323 |
genre |
East Siberian Sea |
genre_facet |
East Siberian Sea |
op_source |
10 Frontiers in Marine Science |
op_relation |
urn:issn:2296-7745 https://hdl.handle.net/11250/3098988 https://doi.org/10.3389/fmars.2023.956323 cristin:2134203 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_doi |
https://doi.org/10.3389/fmars.2023.956323 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1782333610153476096 |