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Modelling stage-discharge relationships in anastomosed bedrock-influenced sections of the Sabie River system

Auteurs :
BROADHURST, L.J.
HERITAGE, G.L.

Description :
Flow dynamics in a bedrock-influenced river system, the Sabie River, South Africa, have been found to be significantly different from those in temperate alluvial systems. the lack of lateral water connectivity leads to multiple bedrock distributaries with varying water surface elevations across a cross-section. A Multiple Stage model was developed to predict hydraulic conditions in each distributary, using a single measured rating curve and knowledge of individual distributary water surface elevations at a low flow. This model has enabled realistic prediction of channel geometry and hydraulic variables, that accounts for the different stages found in bedrock-influenced sections.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1998, vol. 23, n°. 5, p. 455-465, Collation : Illustration, Références bibliographiques : 10 ref.

Date :
1998

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

Langue :
Anglais
Droits :
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