Morphological controls on the downstram passage of a sediment wave in a gravel-bed stream

Auteurs :
WATHEN, S.J.
HOEY, T.B.

Description :
This study documents the origin and downstream passage of an avulsion-generated sediment wave through a 374 m study reach of the Allt Dubhaig, Scotland. A nested survey framework was adopted, with volumes calculated from cross-sections spaced between 10 and 40 m apart documenting the origin and downstream passage of the wave. The specific aims of this study are to : 1) assess the significance of local morphology upon the passage of the wave; 2) determine the extent of sediment exchange between the recipient reach and the wave, and the effect of this upon wave magnitude; and 3) describe the channel response to wave input and assess the transience of these changes.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1998, vol. 23, n°. 8, p. 715-730, Collation : Illustration, Références bibliographiques : 43 ref.

Date :
1998

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