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(Article of periodic en Anglais - 2009)

Document title

Planform dynamics of braided streams

Authors(s) and Affiliation(s)

BERTOLDI W. (1) ; ZANONI L. (1) ; TUBINO M. (1) ;
(1) Dep. of Civil and Environmental Engineering, Univ., Trento, ITALIE

Abstract

This work is aimed at the characterization of the morphology of braided streams, in order to assess whether the system reaches a steady state under constant flow conditions and, in that case, to determine how it can be described and on which parameters it depends. A series of 14 experimental runs were performed in a laboratory physical model with uniform sand, varying the discharge and the longitudinal slope. Planimetric and altimetric configurations were monitored in order to assess the occurence of a steady state. A set of parameters was considered, such as the braid plain width and the number and typology of branches and nodes. Results point out that a relationships exists between braiding morphology and 2 dimensionless parameters, related to total water discharge and stream power. The paper ends with a discussion on different width definitions and on the relationship between width and discharge, that distinctively characterize the braided pattern

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, no4 [pp. 547-557]

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.1755

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