Distribution of geoacoustic properties and related influencing factors of surface sediments in the southern South China Sea

doi:10.1007/s11001-016-9294-z

	Distribution of geoacoustic properties and related influencing factors of surface sediments in the southern South China Sea
	Wang, Jingqiang 1,2,3; Guo, Changsheng 2,3; Liu, Baohua 3,4; Hou, Zhengyu 2; Han, Guozhong 1,3
刊名	MARINE GEOPHYSICAL RESEARCH
	2016-12
卷号	37 期号:4 页码:337-348
关键词	Sediments acoustic Sound speed ratio Acoustic impedance Southern South China Sea Physical property
ISSN号	0025-3235
DOI	10.1007/s11001-016-9294-z
英文摘要	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.
资助项目	National Natural Science Foundation of China[41406073] ; National Natural Science Foundation of China[41330965]
WOS关键词	MARINE-SEDIMENTS ; ACOUSTIC PROPERTIES ; IN-SITU ; SOUND-VELOCITY ; PHYSICAL-PROPERTIES ; SHELF SEDIMENTS ; FLOOR SEDIMENT ; WAVE VELOCITY ; EEL RIVER ; ATTENUATION
WOS研究方向	Geochemistry & Geophysics ; Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000392080000008
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26013]
专题	自然资源部第一海洋研究所
通讯作者	Wang, Jingqiang; Guo, Changsheng
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
推荐引用方式 GB/T 7714	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.