inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

More on the evolution of bed material waves in alluvial rivers

Auteurs :
CUI, Y.
PARKER, G.
LISLE, T.E.
PIZZUTO, J.E.
DODD, A.M.

Description :
Sediment waves or pulses can form in rivers following variations in input from landslides, debris flows, and other sources. Experimental, numerical and field evidence assembled by the AA. suggests that in mountain gravel-bed streams, such pulses show relatively little translation, instead mostly dispersing in place. This research has recently been the subject of discussion. The AA. suggest that : the equations of flow and sediment mass balance used in the analyses require correction; an appropriate hyperbolic model of sediment waves (pulses) including the relative roles of dispersion and translation must be used.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2005, vol. 30, n°. 1, p. 107-114, nombre de pages : 8, Collation : Illustration, Références bibliographiques : 28 ref.

Date :
2005

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

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)