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Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments

The limitation of traditional sampling method to provide detailed spatial and temporal profiles of suspended sediment concentration has led to an interest in alternative devices and methods based on scattering of underwater sound and light. In the present work, acoustic backscatter and LISST (the La...

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Autor principal: Meral, Ramazan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3927532/
https://www.ncbi.nlm.nih.gov/pubmed/27879747
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author Meral, Ramazan
author_facet Meral, Ramazan
author_sort Meral, Ramazan
collection PubMed
description The limitation of traditional sampling method to provide detailed spatial and temporal profiles of suspended sediment concentration has led to an interest in alternative devices and methods based on scattering of underwater sound and light. In the present work, acoustic backscatter and LISST (the Laser In Situ Scattering Transmissometry) devices, and methodologies were given. Besides a laboratory study was conducted to compare pumping methods for different sediment radiuses at the same concentration. The glass spheres (ballotini) of three different radiuses of 115, 137 and 163 μm were used to obtain suspension in the sediment tower at laboratory. A quite good agreement was obtained between these methods and pumping results with the range at 60.6-94.2% for sediment concentration and 91.3-100% for radius measurements. These results and the other studies show that these methods have potential for research tools for sediment studies. In addition further studies are needed to determine the ability of these methods for sediment measurement under different water and sediment material conditions.
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spelling pubmed-39275322014-02-18 Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments Meral, Ramazan Sensors (Basel) Full Research Paper The limitation of traditional sampling method to provide detailed spatial and temporal profiles of suspended sediment concentration has led to an interest in alternative devices and methods based on scattering of underwater sound and light. In the present work, acoustic backscatter and LISST (the Laser In Situ Scattering Transmissometry) devices, and methodologies were given. Besides a laboratory study was conducted to compare pumping methods for different sediment radiuses at the same concentration. The glass spheres (ballotini) of three different radiuses of 115, 137 and 163 μm were used to obtain suspension in the sediment tower at laboratory. A quite good agreement was obtained between these methods and pumping results with the range at 60.6-94.2% for sediment concentration and 91.3-100% for radius measurements. These results and the other studies show that these methods have potential for research tools for sediment studies. In addition further studies are needed to determine the ability of these methods for sediment measurement under different water and sediment material conditions. Molecular Diversity Preservation International (MDPI) 2008-02-19 /pmc/articles/PMC3927532/ /pubmed/27879747 Text en © 2008 by MDPI Reproduction is permitted for noncommercial purposes.
spellingShingle Full Research Paper
Meral, Ramazan
Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments
title Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments
title_full Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments
title_fullStr Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments
title_full_unstemmed Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments
title_short Laboratory Evaluation of Acoustic Backscatter and LISST Methods for Measurements of Suspended Sediments
title_sort laboratory evaluation of acoustic backscatter and lisst methods for measurements of suspended sediments
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3927532/
https://www.ncbi.nlm.nih.gov/pubmed/27879747
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