| 基于Buckingham模型和Biot-Stoll模型的南沙海域沉积物声速分布特征 |
| |
| 关键词:seafloor sediment Buckingham model Biot-Stoll model sound speed distribution sound speed ratio |
| 基金项目:海洋公益性行业科研专项经费(编号: 201405032; 200905025); 国家自然科学基金重点项目(编号: 41330965) |
|
| 摘要点击次数: 2744 |
| 全文下载次数: 2964 |
| 摘要: |
| Sound Speed Distribution of Seafloor Sediments in Nansha Islands Sea Based on Buckingham Model and Biot-Stoll Model |
| In order to analyze the application of the speed theoretical models to predicting the sound speed of sediments in the southern South China Sea, the authors calculated the sound speed by using Wood equation, Buckingham model, and Biot-Stoll model respectively. The comparison between the calculated and the measured sound speeds shows that the average deviation between the calculated sound speeds with Buckingham model and the measured sound speeds is smaller than the calculated values with Wood equation and Biot-Stoll model. The comparison of the sound speed ratio distributions indicate that the calculated sound speed ratios with Buckingham model and Biot-Stoll model have the similar horizontal distributions with the measured sound speed ratios. The sound speeds have different horizontal distributions in different sedimentary environments and are closely related to the physical properties and the deposition of sediments. The calculated sound speed ratios are invariant with the depth, while the measured values have different vertical distributions in several different geomorphic units. According to the comparison results, the Biot-Stoll model is only suitable for the coarse sediments in the continental shelf, and the Buckingham model is more applicable to predicating the sound speed of sediments in the study area. The research is significant in obtaining the sound speed distribution of the sediments in the southern South China Sea, and can provide reference for the multi-beam echo sounding and the sub-bottom survey. |
| WANG Jing-qiang,GUO Chang-sheng,LIU Bao-hua,CHEN Wen-jing,HOU Zheng-yu,HAN Guo-zhong.2016.Sound Speed Distribution of Seafloor Sediments in Nansha Islands Sea Based on Buckingham Model and Biot-Stoll Model[J].Acta Geoscientica Sinica,37(3):359-367. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|