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(Article of periodic en Anglais - 2012)

Document title

Implementation and validation of video monitoring for wood budgeting in a wandering piedmont river, the Ain River (France)

Authors(s) and Affiliation(s)

MACVICAR B. (1) ; PIÉGAY H. (2) ;
(1) Dep. of Civil and Environmental Engineering, Univ. Ontario, Waterloo, CANADA
(2) CNRS-UMR 5600, Univ. Lyon, Bron, FRANCE

Abstract

The AA. use a streamside video camera to detect wood passage and measure quasi-instantaneous rates of wood transport in the Ain River, France. The aims are to verify the procedure, describe the relation between wood transport and discharge, and construct and validate a wood budget for the reach upstream of the camera. Verification of the procedure includes tests of detection frequency, wood velocity, and piece size. A log base two transformation is proposed to classify wood by piece length. It was found that a wood transport threshold occurs at approximately two thirds of the bankfull discharge. Wood transport follows a positive linear relation with discharge up to the bankfull discharge but is both more variable and less sensitive to discharge when the floodplain is inundated. Transport rates are approximately four times higher on the rising limb of the hydrograph than on the falling limb

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, no12 [pp. 1272-1289]

Bibliographic references : 1 p.

Collation : 17 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.3240

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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