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Breakup and reestablishment of the armour layer in a large gravel-bed river below dams : the lower Ebro

Auteurs :
VERICAT, D.
BATALLA, R.J.
GARCIA, C.

Description :
This paper describes the breakup and the reestablishment of the bed armour layer in the regulated gravel-bed Ebro River during a flooding period. The study was conducted over a 28-km study reach from 2002 to 2004. The surface, subsurface and bed load grain size distribution constitute the bases for the analysis of bed-armouring dynamics. The results indicate that the magnitude of floods controlled the degree of armouring of the river bed. The supply and transport of bed material appear to be in balance in the river reach immediately below the dam.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2006, vol. 76, n°. 1-2, p. 122-136, nombre de pages : 15, Collation : Illustration, Références bibliographiques : 50 ref.

Date :
2006

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais
Droits :
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