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(Article of periodic en Anglais - 2011)

Document title

Evolution of a bifurcation in a meandering river with adjustable channel widths, Rhine delta apex, The Netherlands

Authors(s) and Affiliation(s)

KLEINHANS M.G. (1) ; COHEN K.M. (1 2) ; HOEKSTRA J. (1) ; IJMKER J.M. (1) ;
(1) Fac. of Geosciences, Dep. of Physical geography, Univ., Utrecht, PAYS-BAS
(2) Deltares, Dep. of Applied Geology and Geophysics, Utrecht, PAYS-BAS

Abstract

The aim of this paper is to identify and quantify factors that determine avulsion duration in meandering lowland rivers, and to assess the sedimentary styles associated with bifurcation evolution. The AA. formulate a morphodynamic model and compare results of scenario modelling to the historic apex bifurcation of the river Rhine of the last 2000 years. The model incorporates channel width adjustment and some effects of meandering on the flow and sediment partitioning at the bifurcation. Rich historical resources and geological data are available, allowing to infer the possible effects of meandering at the bifurcation, changing channel widths, vegetation in the abandoning channel and sedimentation independently from the model. Furthermore the AA. reconstruct the sedimentary styles associated with the bifurcation from a geological cross-section, in particular channel migration, channel widening and narrowing and channel belt formation up to the residual channel stage

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no15 [pp. 2011-2017]

Bibliographic references : 42 ref.

Collation : 12 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2222

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 25992306 : Permanent link - XML version
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