CGRG Bibliography of Canadian Geomorphology
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Author : Doeschl, A.B.
Date : 2002.
Title : Assessing braided river dynamics with a cellular model.
Publication : Unpublished PhD dissertation. University of Western Ontario, London.
Issue :
Page(s) : 218 p.
Abstract
Braided rivers are dynamical systems in which processes of different scales interact to cause constant changes in the river morphology. Traditional computational modeling approaches are challenged by the constant and often abrupt domain changes associated with the morphological development. Recently a cellular modeling approach has evoked great attention, because it could generate braided patterns that share many aspects with natural braided rivers by using simple representations of flow and sediment flux ([43]). In this thesis the cellular model is assessed by a variety of methods. These methods range from mathematical techniques for evaluating the model as a solution scheme to differential equations to the model implementation for predicting the evolution of the topography of a physical small-scale braided river model. A parallel goal is the quantitative description of static and dynamic properties that characterize braided rivers and distinguish them from other dynamical systems. Appropriate quantitative description is essential for the model assessment as it provides a means for determining to what degree the modelled rivers represent natural streams. Furthermore, the fact that a modelled river shares many characteristics with natural braided rivers implies that the model comprises a correct representation of the governing mechanical processes.
Bibliography of Canadian Geomorphology