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(Article of periodic en Anglais - 2012)

Document title

Bedload tracing in a high-sediment-load mountain stream

Authors(s) and Affiliation(s)

LIÉBAULT F. (1) ; BELLOT H. (1) ; CHAPUIS M. (1) ; KLOTZ S. (1) ; DESCHÂTRES M. (1) ;
(1) Cemagref Grenoble - Unité de Recherche ETNA, Saint-Martin-d'Hères, FRANCE

Abstract

This paper reports a radiofrequency identification (RFID) tracing experiment implemented in a high-sediment-load mountain stream typical of alpine gravel-bed torrents : the Bouinenc Torrent, a tributary to the Bléone River in southeast France. In spring 2008, 451 tracers were deployed and 3 tracer inventories were implemented in July 2008, 2009 and 2010. Recovery rates calculated for mobile tracers declined from 78% in 2008 to 45% in 2009 and 25% in 2010. The declining recovery rate over time was interpreted as resulting from rapid dispersion rather than deep burial. Travel distances were characterized by right-skewed and heavy-tailed distributions, correctly fitted by a power-law function. This supports the idea that in gravel-bed rivers with abundant sediment supply relative to transport capacity, bedload transport can be viewed as a superdiffusive sediment dispersion process

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no4 [pp. 385-399]

Bibliographic references : 1 p.

Collation : 15 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2245

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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