Laboratory/in situ sound velocities of shelf sediments in the South Sea of Korea SCOPUS

DC Field Value Language
dc.contributor.author Kim, D.C. -
dc.contributor.author Kim, G.Y. -
dc.contributor.author Jung, J.H. -
dc.contributor.author Seo, Y.K. -
dc.contributor.author Wilkens, R.H. -
dc.contributor.author Yoo, D.G. -
dc.contributor.author Lee, G.H. -
dc.contributor.author Kim, J.C. -
dc.contributor.author Yi, H.I. -
dc.contributor.author Cifci, G. -
dc.date.accessioned 2020-04-19T23:42:06Z -
dc.date.available 2020-04-19T23:42:06Z -
dc.date.created 2020-01-28 -
dc.date.issued 2008-06 -
dc.identifier.issn 1226-9204 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/1893 -
dc.description.abstract Compressional sound velocities of shelf sediments in the South Sea of Korea, were measured in situ and in the laboratory for six cores. In situ sound velocity was measured using the Acoustic Lance (frequency of 7.5-15 kHz), while laboratory velocity was measured by the pulse transmission technique (frequency of 1 MHz). Physical properties were relatively uniform with sediment depth, suggesting little effect of sediment compaction and/or consolidation. Average in situ velocity at each core site ranged from 1,457 to 1,488 m/s, which was less than the laboratory velocity of 1,503 and 1,604 m/s. In muddy sediments the laboratory velocity was 39-47 m/s higher than in situ velocity. In sandy sediments, the difference was greater by an average of 116 m/s. Although the velocity data were corrected by the velocity ratio method based on bottom water temperature, the laboratory velocity was still higher than the in situ velocity (11-21 m/s in muddy sediments and 91 m/s in sandy sediments). This discrepancy may be caused by sediment disturbance during core collection and/or by the pressure of Acoustic Lance insertion, but it was most likely due to the frequency difference between in situ and laboratory measurement systems. Thus, when correcting laboratory velocity to in situ velocity, it is important to consider both temperature and frequency. © The Korean Fisheries Society. -
dc.description.uri 3 -
dc.language English -
dc.publisher Korean Fisheries Society -
dc.title Laboratory/in situ sound velocities of shelf sediments in the South Sea of Korea -
dc.type Article -
dc.citation.endPage 112 -
dc.citation.startPage 103 -
dc.citation.title Journal of Fisheries Science and Technology -
dc.citation.volume 11 -
dc.citation.number 2 -
dc.contributor.alternativeName 이희일 -
dc.identifier.bibliographicCitation Journal of Fisheries Science and Technology, v.11, no.2, pp.103 - 112 -
dc.identifier.doi 10.5657/fas.2008.11.2.103 -
dc.identifier.scopusid 2-s2.0-79953214584 -
dc.type.docType Article -
dc.identifier.kciid ART001256142 -
dc.description.journalClass 3 -
dc.description.isOpenAccess N -
dc.subject.keywordAuthor Korea -
dc.subject.keywordAuthor Laboratory/in situ velocity -
dc.subject.keywordAuthor Physical properties -
dc.subject.keywordAuthor South Sea -
dc.subject.keywordAuthor Velocity correction -
dc.description.journalRegisteredClass scopus -
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