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http://dx.doi.org/10.5467/JKESS.2018.39.2.154

Geoacoustic Model at the SSDP-105 Long-core Site of the Ulsan Coastal Area, the East Sea  

Ryang, Woo-Hun (Division of Science Education and Institute of Science Education, Chonbuk National University)
Lee, Gwang-Soo (Korea Institute of Geoscience and Mining Resources (KIGAM))
Hahn, Jooyoung (Agency for Defense Development)
Publication Information
Journal of the Korean earth science society / v.39, no.2, 2018 , pp. 154-163 More about this Journal
Abstract
Geoacoustic model comprises physical and acoustic properties of submarine bottom layers influencing sound transmission through sea water and underwater. This study suggested for the first time that we made a geoacoustic model of long-coring bottom layers at the SSDP-105 drilling site of the Ulsan coastal area, which is located in the southwestern inner shelf of the East Sea. The geoacoustic model of 52 m depth below seafloor with three-layer geoacoustic units was reconstructed in the coastal sedimentary strata at 79 m in water depth. The geoacoustic model was based on the data of a deep-drilled sediment core of SSDP-105 and sparker seismic profiles in the study area. For actual modeling, the geoacoustic property values of the models were compensated to in situ depth values below the sea floor using the Hamilton modeling method. We suggest that the geoacoustic model be used for geoacoustic and underwater acoustic experiments of mid- and low-frequency reflecting on the deep bottom layers in the Ulsan coastal area of the East Sea.
Keywords
geoacosutic model; SSDP-105; geoacoustic property; Ulsan; East Sea;
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Times Cited By KSCI : 3  (Citation Analysis)
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