The frictional resistance characteristics of a bedrock-influenced river channel

Auteurs :
HERITAGE, G.L.
MOON, B.P.
BROADHURST, L.J.
JAMES, C.S.

Description :
This paper presents the results of a detailed investigation of total flow resistance variation for 5 channel types on the Sabie River, South Africa (cohesive, mixed anastomosed, uncohesive mixed anastomosed, mixed pool-rapid, alluvial braided and alluvial single thread) over a range of discharges. It is suggested that the slightly elevated resistance coefficients recorded in the alluvial channel types are the result of the vegetation roughness component, operating when the macro-channel bar features are inundated.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2004, vol. 29, n°. 5, p. 611-627, nombre de pages : 17, Collation : Illustration, Références bibliographiques : 22 ref.

Date :
2004

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley