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Distribution of geoacoustic properties and related influencing factors of surface sediments in the southern South China Sea
Wang, Jingqiang1,2,3; Guo, Changsheng2,3; Liu, Baohua3,4; Hou, Zhengyu2; Han, Guozhong1,3
2016-12-01
发表期刊MARINE GEOPHYSICAL RESEARCH
卷号37期号:4页码:337-348
文章类型Article
摘要In order to characterize and map the seafloor sediments in the southern South China Sea, the physical and geoacoustic properties of the sediments were measured and analyzed at 21 stations. Sound speeds were measured using the coaxial differential distance measurement method on deck, and were corrected to in situ sound speeds using the correction-to-laboratory-velocity method. The results show that the distributions of sound speed ratio and acoustic impedance are closely related to the sediments physical properties. The study area can be divided into 3 geoacoustic provinces: the highest speed zone on the Sunda Shelf, and the intermediate and lowest speed zones on the continental slope and Nansha Trough. The correlations between the sound speed ratio and physical parameters fit linear relationships similarly or even better than the quadratic relationships derived in previous studies. This good fit may however be due to the limited range of data samples used in this study. Compared with the predicted sound speeds from Hamilton and Bachman's or Anderson's empirical equations, the measured values are smaller, which is probably due to different sedimentary environments and measurement methods.
关键词Sediments Acoustic Sound Speed Ratio Acoustic Impedance Southern South China Sea Physical Property
DOI10.1007/s11001-016-9294-z
收录类别SCI
语种英语
WOS记录号WOS:000392080000008
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136295
专题海洋地质与环境重点实验室
作者单位1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, 6 Xianxialing Rd, Qingdao 266061, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
4.State Ocean Adm, Natl Deep Sea Ctr, 6 Xianxialing Rd, Qingdao 266061, Peoples R China
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Wang, Jingqiang,Guo, Changsheng,Liu, Baohua,et al. Distribution of geoacoustic properties and related influencing factors of surface sediments in the southern South China Sea[J]. MARINE GEOPHYSICAL RESEARCH,2016,37(4):337-348.
APA Wang, Jingqiang,Guo, Changsheng,Liu, Baohua,Hou, Zhengyu,&Han, Guozhong.(2016).Distribution of geoacoustic properties and related influencing factors of surface sediments in the southern South China Sea.MARINE GEOPHYSICAL RESEARCH,37(4),337-348.
MLA Wang, Jingqiang,et al."Distribution of geoacoustic properties and related influencing factors of surface sediments in the southern South China Sea".MARINE GEOPHYSICAL RESEARCH 37.4(2016):337-348.
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