Articles | Volume 10, issue 6
https://doi.org/10.5194/esurf-10-1165-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-10-1165-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Nov 2022
Research article |
| 16 Nov 2022
| 16 Nov 2022
Comparison of calibration characteristics of different acoustic impact systems for measuring bedload transport in mountain streams
Dieter Rickenmann
CORRESPONDING AUTHOR
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Lorenz Ammann
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Tobias Nicollier
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Stefan Boss
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Bruno Fritschi
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Gilles Antoniazza
Institute of Earth Surface Dynamics (IDYST), University of Lausanne, 1015 Lausanne, Switzerland
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Nicolas Steeb
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Zheng Chen
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
Institute of Mountain Hazards and Environment, Chinese Academy of
Sciences, Chengdu, 610041, China
University of Chinese Academy of Sciences, Beijing, 100049, China
Carlos Wyss
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
wyss.io – Dr. Carlos R. Wyss Engineering, 8052 Zurich,
Switzerland
Alexandre Badoux
Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
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Bedload flux quantification remains challenging in river dynamics due to variable transport modes. We used a passive monitoring device to record the acoustic signals generated by the impacts of bedload particles with different transport modes, and established the relationship between the triggered signals and bedload characteristics. The findings of this study could improve our understanding of the monitoring system and bedload transport process, and contribute to bedload size classification.
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Wyss, C. R., Rickenmann, D., Fritschi, B., Turowski, J., Weitbrecht, V., and
Boes, R.: Laboratory flume experiments with the Swiss plate geophone bed
load monitoring system: 1. Impulse counts and particle size identification,
Water Resour. Res., 52, 7744–7759, https://doi.org/10.1002/2015WR018555, 2016b.
Wyss, C. R., Rickenmann, D., Fritschi, B., Turowski, J., Weitbrecht, V., Travaglini, E., Bardou, E., and Boes, R.: Laboratory flume experiments with
the Swiss plate geophone bed load monitoring system: 2. Application to field
sites with direct bed load samples, Water Resour. Res., 52, 7760–7778, https://doi.org/10.1002/2016WR019283, 2016c.
Short summary
The Swiss plate geophone system has been installed and tested in more than 20 steep gravel-bed streams. It is an indirect bedload transport measuring system. We compare the performance of this system with three alternative surrogate measuring systems, using calibration measurements with direct bedload samples from three field sites and an outdoor flume facility. Three of the four systems resulted in robust calibration relations between signal impulse counts and transported bedload mass.
The Swiss plate geophone system has been installed and tested in more than 20 steep gravel-bed...
