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Latest revision as of 10:58, 22 July 2015
Browse abstracts
CSDMS all hands meeting 2013
Morphodynamic modeling of large anabranching rivers
Andrew Nicholas, University of Exeter Exeter , United Kingdom. a.p.nicholas@exeter.ac.uk
[[Image:|300px|right|link=File:]]The morphodynamics of large anabranching sand-bed rivers is investigated using a numerical model of hydrodynamics, sediment transport, bank erosion and floodplain development, operating over periods of several hundred years. Model sensitivity to key parameters is examined, and simulated channel and natural river morphology are compared in terms of the statistical characteristics of channel width, depth and bar shape distributions, and mechanisms of unit bar, compound bar and island evolution. Model results provide insight into controls on the frequency of mobile sand bars and the stability of larger vegated islands.
