Articles | Volume 9, issue 6
https://doi.org/10.5194/esurf-9-1423-2021
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, Florent Gimbert, Hervé Bellot, and Alain Recking

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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.