Articles | Volume 9, issue 6
https://doi.org/10.5194/esurf-9-1423-2021
© Author(s) 2021. 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-9-1423-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Nov 2021
Research article |
| 04 Nov 2021
| 04 Nov 2021
Triggering and propagation of exogenous sediment pulses in mountain channels: insights from flume experiments with seismic monitoring
Marco Piantini
CORRESPONDING AUTHOR
University Grenoble Alpes, CNRS, IRD, Institute for Geosciences and
Environmental Research (IGE), Grenoble, France
University Grenoble Alpes, INRAE, ETNA, Grenoble, France
Florent Gimbert
University Grenoble Alpes, CNRS, IRD, Institute for Geosciences and
Environmental Research (IGE), Grenoble, France
Hervé Bellot
University Grenoble Alpes, INRAE, ETNA, Grenoble, France
Alain Recking
University Grenoble Alpes, INRAE, ETNA, Grenoble, France
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Short summary
We carry out laboratory experiments to investigate the formation and propagation dynamics of exogenous sediment pulses in mountain rivers. We show that the ability of a self-formed deposit to destabilize and generate sediment pulses depends on the sand content of the mixture, while each pulse turns out to be formed by a front, a body, and a tail. Seismic measurements reveal a complex and non-unique dependency between seismic power and sediment pulse transport characteristics.
We carry out laboratory experiments to investigate the formation and propagation dynamics of...
