Occurence of cluster microforms in mountain rivers

Auteur(s) et Affiliation(s)

STROM, K.B.

Dep. of Civil and Environmental Engineering, Univ., Houston, Etats-Unis

PAPANICOLAOU, A.N.

Dep. of Civil and Environmental Engineering, IIHR-Hydroscience and Engineering,Univ., Iowa, Etats-Unis

Description :
The occurence of cluster microforms in natural rivers is examined using data collected from 3 mountain streams. A statistical analysis using logistic regression was performed to examine the correlation between the occurence of clusters and various combinations of reach-scale parameters. It was found that clustering was most strongly tied to riffle-pool type reaches. Observations from this study suggest that clusters can be described as bed features that form out of the structural organization of grains in cobble-size sediment within depositional mountain reaches, for which the majority of the sediment can become mobilized by yearly peak flows.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2009, vol. 34, n°. 1, p. 88-98, nombre de pages : 11, Références bibliographiques : 1 p.

Date :
2009

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

Langue :
Anglais