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(Article of periodic en Anglais - 2008)

Document title

Relation between flow, surface-layer armoring and sediment transport in gravel-bed rivers

Authors(s) and Affiliation(s)

PITLICK J. (1) ; MUELLER E.R. (1) ; SEGURA C. (1) ; CRESS R. (2) ; TORIZZO M. (3) ;
(1) Dept. of Geography, Univ. of Colorado, Boulder, ETATS-UNIS
(2) Electrical Systems Consultants, Fort Collins, ETATS-UNIS
(3) Watershed Consulting Associates, Stowe, ETATS-UNIS

Abstract

This study investigates trends in bed surface and substrate grain sizes in relation to reach-scale hydraulics using data from more than 100 gravel-bed stream reaches in Colorado and Utah. Collocated measurements of surface and substrate sediment, bankfull channel geometry and channel slope are used to examine relations between reach-average shear stress and bed sediment grain size. The results of the developed transport model suggest that downstream trends in total bed load flux may vary appreciably, depending on the assumed relation between surface and substrate grain sizes

Source

Article of periodic

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

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

Millesime : 2008, vol. 33, no8 [pp. 1192-1209]

Bibliographic references : 45 ref.

Collation : 12 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1607

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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