E3S Web Conf.
Volume 40, 2018River Flow 2018 - Ninth International Conference on Fluvial Hydraulics
|Number of page(s)||7|
|Section||Sediment and pollutant dynamics in rivers|
|Published online||05 September 2018|
Towards an establishment of a rating curve for suspended sediment transport by means of ADCP measurements
NTNU, Department of Civil and Environmental Engineering, S.P. Andersensveg 5, 7022 Trondheim, Norway
2 University of Bologna, DICAM, via Umberto Terracini 28, 40131 Bologna, Italia
3 Multiconsult ASA, Nedre Skøyen vei 2, 0276 Oslo
4 Statkraft As, Lilleakerveien 6, Postboks 200 Lilleaker, 0216 Oslo, Norway
* Corresponding author: firstname.lastname@example.org
This study presents a series of acoustic current Doppler profiler (ADCP) measurements, which are converted into suspended load concentrations (SSC). Depending on the particle size distribution (PSD), the sound backscatter and its attenuation are used to determine a theoretical minimal and physical upper limit of the SSC. The SSC are displayed over time and compared with the evolution of the water level during the same time interval. The present study shows that it is possible to have continuous measurements of SSC and water level with a horizontally installed two beam equipped ADCP and discusses the potential of such a continuing times series measurement for application in hydraulic engineering and research. However, the presented data set shows also that the calibration and the filtering of the raw data has to be improved and that further investigations are needed. After data verification, it will be possible to calculate the yearly sediment load and investigate physical behaviour of SSC concentration as a function of water level and discharge.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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