Sound speed dispersion characteristics of three types of shallow sediments in the southern yellow sea

doi:10.1080/1064119X.2017.1392659

	Sound speed dispersion characteristics of three types of shallow sediments in the southern yellow sea
	Kan, Guangming 1,2; Liu, Baohua 2,3; Wang, Jingqiang 1,2; Meng, Xiangmei 1,2; Li, Guanbao 1,2; Hua, Qingfeng 1,2; Sun, Lei 1,2
刊名	MARINE GEORESOURCES & GEOTECHNOLOGY
	2018
卷号	36 期号:7 页码:853-860
关键词	Biot-Stoll model grain-shearing model seafloor sediments sound speed dispersion
ISSN号	1064-119X
DOI	10.1080/1064119X.2017.1392659
英文摘要	To accurately characterize sound speed dispersion of shallow sediments in the Southern Yellow Sea, three types of sediments, i.e., silt, clayey silt, and silty clay, were selected to measure the sound speeds at 25-250kHz. Over the frequency range, the sound speeds vary approximately from 1,536 to 1,565ms(-1) in silt sediment, from 1,511 to 1,527ms(-1) in clayey silt sediment, and from 1,456 to 1,466ms(-1) in silty clay sediment. The sound speed exhibits a slow increase with frequency in a nearly linear gradient, but these three types of sediments have different sound speed dispersion characteristics. The silt sediment with relatively coarse grains has the most significant sound speed dispersion, while the sound speed dispersions of the two others are relatively weak. Comparison between the measured dispersions and the model predictions shows that the grain-shearing model can match the measured data at most of frequencies. Nevertheless, when the grain bulk modulus was assigned 3.2x10(10)Pa according to relevant references, the Biot-Stoll model predictions were higher than the measured values at high frequencies; when it was assigned a relatively small value of 2.8x10(10)Pa, the model predictions achieved optimal matching with the measured values.
资助项目	Taishan Scholar Project Funding[tspd20161007]
WOS关键词	MARINE-SEDIMENTS ; IN-SITU ; ACOUSTIC PROPERTIES ; BIOT-STOLL ; VELOCITY DISPERSION ; OCEAN SEDIMENTS ; FREQUENCY RANGE ; ELASTIC WAVES ; ATTENUATION ; PROPAGATION
WOS研究方向	Engineering ; Oceanography ; Mining & Mineral Processing
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000442014100010
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26642]
专题	自然资源部第一海洋研究所
通讯作者	Wang, Jingqiang
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, 6 Xianxialing Rd, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.State Ocean Adm, Natl Deep Sea Ctr, Jimo City, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Kan, Guangming,Liu, Baohua,Wang, Jingqiang,et al. Sound speed dispersion characteristics of three types of shallow sediments in the southern yellow sea[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2018,36(7):853-860.
APA	Kan, Guangming.,Liu, Baohua.,Wang, Jingqiang.,Meng, Xiangmei.,Li, Guanbao.,...&Sun, Lei.(2018).Sound speed dispersion characteristics of three types of shallow sediments in the southern yellow sea.MARINE GEORESOURCES & GEOTECHNOLOGY,36(7),853-860.
MLA	Kan, Guangming,et al."Sound speed dispersion characteristics of three types of shallow sediments in the southern yellow sea".MARINE GEORESOURCES & GEOTECHNOLOGY 36.7(2018):853-860.