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(Article of periodic en Anglais - 2011)

Document title

Active width of gravel-bed braided rivers

Authors(s) and Affiliation(s)

ASHMORE P. (1) ; BERTOLDI W. (2) ; GARDNER J.T. (1) ;
(1) Dep. of Geography, Univ. of Western Ontario, London, CANADA
(2) School of Geography, Queen Mary Univ., London, ROYAUME-UNI

Abstract

The AA. compare theoretical predictions of active width in gravel-bed braided rivers with observations from Sunwapta River, (Alberta, Canada), and from a generic physical model of gravel braided rivers, to describe and measure trends and variability in active width. From these empirical results, the AA. formulate a general relation that predicts active width over a range of braided river types and flow conditions. This paper also raises questions about differences between hydraulically-based numerical model computations of instantaneous active width and observation of time-integrated morphological active width. Understanding these differences can give insight into the nature of bedload transport in braided rivers and the relationship to morphological processes of braiding

Source

Article of periodic

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

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

Millesime : 2011, vol. 36, no11 [pp. 1510-1521]

Bibliographic references : 44 ref.

Collation : 12 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2182

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