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| Titel |
Discharge and sediment transport of a small braiding river inferred from seismic survey. |
| VerfasserIn |
Patrick Meunier, Arnaud Burtin, Morgane Houssais, Pauline Souloumiac, François Métivier |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250057283
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| Zusammenfassung |
| Hydraulics and sediment transport in the torrent de St Pierre, a small braiding river (French
Alps) were measured for 10 days during the peak flow season (summer). Discharge was
continuously monitored by a pressure sensor (diver). Sediment transport (suspended and
bedload) was estimated along river section at regular time interval. For the seismic
monitoring, we deployed 2 broadband and 2 short period seismometers in the braiding plain.
The analysis of the high-frequency content of the seismic records shows that the river
discharge can be precisely inferred from the signal envelop. The dynamics of the river being
very rapid, channel shifts took place during the survey. This effect can be seen in the
data under the form of a vertical shift in the plot of the energy versus discharge. |
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