| Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler （PCADP） |
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| 引用本文： | 柏秀芳,李思忍,龚德俊,徐永平,姜静波.Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler （PCADP）[J].中国海洋与湖沼学报,2009,27(2):260-265. |
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| 作者姓名： | 柏秀芳 李思忍 龚德俊 徐永平 姜静波 |
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| 作者单位： | BAI Xiufang(Institute of Oceanology, Chinese Academy of Sciences, R&D Centre of Ocean Environmental Engineering and Technology,Qingdao 266071, China;Qingdao Feiyang Vocational & Technical College, Qingdao 266111, China);LI Siren,GONG Dejun,XU Yongping,JIANG Jingbo(Institute of Oceanology, Chinese Academy of Sciences, R&D Centre of Ocean Environmental Engineering and Technology,Qingdao 266071, China) |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： |
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| 关 键 词： | 剖面仪 多普勒 泥沙浓度 估计 声学 相干 脉冲 悬移质 |
| 收稿时间： | 31 January 2005 |
Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler (PCADP) |
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| Xiufang?Bai,Siren?Li,Dejun?Gong,Yongping?Xu,Jingbo?Jiang.Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler (PCADP)[J].Chinese Journal of Oceanology and Limnology,2009,27(2):260-265. |
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| Authors: | Xiufang Bai Siren Li Dejun Gong Yongping Xu Jingbo Jiang |
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| Institution: | (1) R&D Centre of Ocean Environmental Engineering and Technology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China;(2) Qingdao Feiyang Vocational & Technical College, Qingdao, 266111, China |
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| Abstract: | The objective of the study is to investigate the suitability of using Pulse-coherent Acoustic Doppler Profiler (PCADP) to
estimate suspended sediment concentration (SSC). The acoustic backscatter intensity was corrected for spreading and absorption
loss, then calibrated with OBS and finally converted to SSC. The results show that there is a good correlation between SSC
and backscatter intensity with R value of 0.74. The mean relative error is 22.4%. Then the time span of little particle size
variation was also analyzed to exclude the influence of size variation. The correlation coefficient increased to 0.81 and
the error decreased to 18.9%. Our results suggest that the PCADP can meet the requirement of other professional instruments
to estimate SSC with the errors between 20% and 50%, and can satisfy the need of dynamics study of suspended particles.
Supported by National High Technology Research and Development Program of China (863 Program, No. 2008AA09Z113) |
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| Keywords: | Keyword" target="_blank">Keyword Doppler Profiler (PCADP) suspended sediment concentration (SSC) acoustic backscatter intensity |
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