A cellular model of river meandering

Tom J. Coulthard, Marco J. Van De Wiel

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

River meandering has been successfully modelled using vector based methods, but these can not simulate multiple or braided channels. Conversely, cellular braided river models fail to replicate meandering. This paper describes a new method to simulate river meandering within a cellular model (CAESAR). A novel technique for determining bend radius of curvature on a cell by cell basis is described, that impotantly allows regional information on bend curvature to be transferred to local points. The local curvature is then used to drive meandering and lateral erosion through two methods. Key difficulties are identified, including the deposition of material on point bars and cut off development, but the method illustrates how meandering can be integrated with a cellular frameworks. This demonstrates the potential to produce a single model that can incorporate both meandering and braiding.

Original languageEnglish
Pages (from-to)123-132
Number of pages10
JournalEarth Surface Processes and Landforms
Volume31
Issue number1
Early online date23 Dec 2005
DOIs
Publication statusPublished - Jan 2006
Externally publishedYes

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Keywords

  • Braiding
  • Cellular model
  • Meandering

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Earth-Surface Processes
  • Geography, Planning and Development

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