Coupling bank stability and bed deformation models to predict equilibrium bed topography in river bends
Amiri-Tokaldany, Ebrahim, Darby, Stephen E. and Tosswell, Paul (1970) Coupling bank stability and bed deformation models to predict equilibrium bed topography in river bends. Journal of Hydraulic Engineering, 133, (10), 1167-1170. (doi:10.1061/(ASCE)0733-9429(2007)133:10(1167)).
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Attempts to include river bank erosion predictors within morphological models are becoming increasingly common, but
uncertainty surrounds the procedures used to couple bed deformation and bank erosion submodels in a way that maintains the mass
continuity of eroded bank sediment. Herein we present a coupling procedure that comprises two discrete elements. First, immediately
following bank failure, the slumped debris comes to rest at the bank toe as a planar surface inclined at an “angle of repose.” Second, we
use a fractional transport model to simulate the subsequent erosion and deposition of the failed bank material debris. The method is
demonstrated with an example in which an equilibrium bed topography model is combined with a river bank erosion model to predict the
morphological response of a river bend to a large flow event.
|Digital Object Identifier (DOI):||doi:10.1061/(ASCE)0733-9429(2007)133:10(1167)|
|Subjects:||G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > GE Environmental Sciences
G Geography. Anthropology. Recreation > GB Physical geography
|Divisions :||University Structure - Pre August 2011 > School of Geography > Environmental Processes and Change
|Accepted Date and Publication Date:||
|Date Deposited:||01 Aug 2008|
|Last Modified:||31 Mar 2016 12:35|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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