Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler (PCADP)

IOCAS-IR

	Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler (PCADP)
	Bo XF(柏秀芳); Li SR(李思忍); Gong DJ(龚德俊); Xu YP(徐永平); Jiang JB(姜静波)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2009-05-15
出版年	2009
卷号	v.27 期号:02 页码:78-83
文献类型	CNKI期刊论文
摘要	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.
关键词	Doppler Profiler (PCADP) suspended sediment concentration (SSC) acoustic backscatter intensity
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A010
CNKI专题名称	海洋学;
分类号	P733.23
收录类别	中科院核心
语种	英文;
资助项目(基金）	Supported by National High Technology Research and Development Program of China (863 Program, No. 2008AA09Z113)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/192590
专题	中国科学院海洋研究所
作者单位	1.InstituteofOceanology,ChineseAcademyofSciences,R&DCentreofOceanEnvironmentalEngineeringandTechnology 2.QingdaoFeiyangVocational&TechnicalCollege
推荐引用方式 GB/T 7714	Bo XF,Li SR,Gong DJ,et al. Estimation of suspended sediment concentrations using Pulse-coherent Acoustic Doppler Profiler (PCADP). 2009.