Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region
文献类型：CNKI期刊论文
| 作者 | Zhang YX(张严心) ; Guo CS(郭常升); Wang JQ(王景强); Hou ZY(侯正瑜); Chen WJ(陈文景)
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| 发表日期 | 2017-05-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
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| 关键词 | sound velocity granular properties empirical equation |
| 英文摘要 | 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. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Special Research Fund for Non-Profit Marine Sector(No.200905025) |
| 卷 | v.35期:03页:238-245 |
| 语种 | 英文; |
| 分类号 | P733.2;P736.21 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189314]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.KeyLaboratoryofMarineSedimentologyandEnvironmentalGeology,FirstInstituteofOceanography,StateOceanicAdministration(SOA) |
| 推荐引用方式 GB/T 7714 | Zhang YX,Guo CS,Wang JQ,et al. Relationship between in situ sound velocity and granular characteristics of seafloor sediments in the Qingdao offshore region. 2017. |
入库方式： OAI收割
来源：海洋研究所
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