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(Article of periodic en Anglais - 2009)

Document title

Form and growth of bars in a wandering gravel-bed river

Authors(s) and Affiliation(s)

CHURCH M. (1) ; RICE S.P. (2) ;
(1) Dep. of Geography, Univ. of British Columbia, Vancouver, CANADA
(2) Dep. of Geography, Univ. Leicestershire, Loughborough, ROYAUME-UNI

Abstract

Century scale patterns of three-dimensional growth and development, and the consequent scaling relations of alluvial bars are examined along the gravel-bed reach of lower Fraser River , British Columbia, Canada. A retrospective view based on maps and aerial photographs obtained through the twentieth century shows that individual bars have a life history of about 100 years, except in certain protected positions. Fraser River presents a typical wandering channel planform, exhibiting elements of both meandered and low-order braided channels. Hydraulic criteria to which the Fraser bars conform illustrate why this planform develops and persits. The modest rate of bed material transfer along the channel, typical of the wandering type, determines a century-length time scale for bar development

Source

Article of periodic

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

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

Millesime : 2009, vol. 34, no10 [pp. 1422-1432]

Bibliographic references : 1 p.

Collation : 10 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.1831

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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