Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR029589 |
Acoustic Backscatter and Attenuation due to River Fine Sediments: Experimental Evaluation of Models and Inversion Methods | |
Adrien Vergne; Cé; line Berni; Jé; rô; me Le Coz; Florent Tencé | |
2021-07-14 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | The hydroacoustic monitoring of suspended sediment concentration (SSC) in rivers is based on the inversion of backscatter and attenuation models. To evaluate such models, acoustic backscatter and attenuation were measured from a homogeneous suspension of fine river sediments (clay) in a laboratory tank at various concentrations in the range 1-18 g/l. Agreement between the modelled and measured acoustic backscatter and attenuation values was found to be relatively poor. The results are highly sensitive to particle size and shape which come with large measurement uncertainties and they can be significantly improved by adjusting plausible particle parameters. Various inversion methods combining single or multiple frequencies, analysis of backscatter and/or attenuation, spherical or oblate shape hypothesis for particles and fixed or estimated lognormal grain size distribution are tested. The most promising inversion methods using both backscatter and attenuation information led to accurate SSC estimates. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/333824 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Adrien Vergne,Cé,line Berni,et al. Acoustic Backscatter and Attenuation due to River Fine Sediments: Experimental Evaluation of Models and Inversion Methods[J]. Water Resources Research,2021. |
APA | Adrien Vergne.,Cé.,line Berni.,Jé.,rô.,...&Florent Tencé.(2021).Acoustic Backscatter and Attenuation due to River Fine Sediments: Experimental Evaluation of Models and Inversion Methods.Water Resources Research. |
MLA | Adrien Vergne,et al."Acoustic Backscatter and Attenuation due to River Fine Sediments: Experimental Evaluation of Models and Inversion Methods".Water Resources Research (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论