Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region

Yanxin Zhang; Changsheng Guo; Jingqiang Wang; Zhengyu Hou; Wenjing Chen

doi:10.1007/s00343-017-5374-4

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Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region

Updated：2023-05-16

- Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region
- Journal of Oceanology and Limnology Vol. 35, Issue 3, Pages: 704-711(2017)
- Affiliations：
  
  1. Key Laboratory of Marine Geology and Environment Institute of Oceanology Chinese Academy of Sciences
  2. University of Chinese Academy of Sciences
  3. Key Laboratory of Marine Sedimentology and Environmental Geology First Institute of Oceanography State Oceanic Administration (SOA)
- Author bio：
- Funds：
- DOI：10.1007/s00343-017-5374-4
  CLC：
- Online First：09 July 2016，
  
  Published：2017
- Accepted：
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Zhang, Y., Guo, C., Wang, J. et al. Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region., Chin. J. Ocean. Limnol. 35, 704–711 (2017). https://doi.org/10.1007/s00343-017-5374-4
DOI：

Zhang, Y., Guo, C., Wang, J. et al. Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region., Chin. J. Ocean. Limnol. 35, 704–711 (2017). https://doi.org/10.1007/s00343-017-5374-4 DOI：

摘要

Abstract

The sound velocity of seafloor sediments from shallow seas can provide important information for harbor design

and ocean and seacoast engineering projects. In this study

in situ measurements were used to obtain accurate sediment sound velocities at 45 stations offshore of Qingdao. The relationships between the sound velocity and granular properties of the seafloor sediments were analyzed. Sound velocity showed an increase with the sand content

sand-clay ratio

and sorting coefficient; and a nonlinear decreasing trend with increasing mean grain size and clay content. We plotted a sound velocity distribution map

which shows that the sound velocity was closely related to the geological environment. Previous empirical equations suggested by Hamilton

Anderson

and Liu were used to calculate the velocity with grain size. A comparison between the measured and calculated velocities indicates that the empirical equations have territorial limitations

and extensive data are essential to establish global empirical equations. Future work includes the calibration of the laboratory acoustic measurements with an in situ technique.

关键词

Keywords

references

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