Articles | Volume 9, issue 6
Earth Surf. Dynam., 9, 1423–1439, 2021
https://doi.org/10.5194/esurf-9-1423-2021
Earth Surf. Dynam., 9, 1423–1439, 2021
https://doi.org/10.5194/esurf-9-1423-2021

Research article 04 Nov 2021

Research article | 04 Nov 2021

Triggering and propagation of exogenous sediment pulses in mountain channels: insights from flume experiments with seismic monitoring

Marco Piantini et al.

Data sets

Dataset of "Triggering and propagation of exogeneous sediment pulses in mountain channels: insights from flume experiments with seismic monitoring" Marco Piantini, Florent Gimbert, Hervé Bellot, and Alain Recking https://doi.org/10.5281/zenodo.5552189

Video supplement

Storage area with bidomal mixture M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51666

Storage area with fine mixture M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51981

Storage area with coarse mixture M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51982

Storage area with bidomal mixture M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51984

Sediment flux during the supplementary experiment M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51985

Sediment pulse during the main experiment M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51986

Solid discharge peak during the main experiment M. Piantini, F. Gimbert, H. Bellot, and A. Recking https://doi.org/10.5446/51987

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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.