The spatial structure of planform dynamics of meandering rivers

Ý Güneralp, Bruce L Rhoads

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Channel migration is a fundamental, yet incompletely understood, aspect of the dynamics of meandering rivers. Current theoretical models aimed at predicting planform dynamics relate rates of meander migration to local and upstream planform curvature where weighting of the influence of curvature on migration rate decays exponentially over distance. This theoretical relation, however, has not been rigorously evaluated empirically. Furthermore, predictive models based on this relation are incapable of reproducing complex forms of bend development, such as compound loops. This paper presents the development of a methodology based on parametric cubic splines for investigating empirically the relationship between spatially extended curvature and local bend migration for a study reach along a highly sinuous section of the Embarras River in Illinois, USA, which contains compound loops. Results indicate that the spatial structure of migration rate-curvature relation may be more complex than currently is assumed. The study provides a first step toward unraveling the spatial structure of planform evolution of meandering rivers.

Original languageEnglish (US)
Title of host publicationRiver, Coastal and Estuarine Morphodynamics
Subtitle of host publicationRCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
Pages773-782
Number of pages10
StatePublished - Dec 1 2006
Event4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2005 - Urbana, IL, United States
Duration: Oct 4 2005Oct 7 2005

Publication series

NameRiver, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
Volume2

Other

Other4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2005
CountryUnited States
CityUrbana, IL
Period10/4/0510/7/05

ASJC Scopus subject areas

  • Ecological Modeling
  • Environmental Chemistry

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  • Cite this

    Güneralp, Ý., & Rhoads, B. L. (2006). The spatial structure of planform dynamics of meandering rivers. In River, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics (pp. 773-782). (River, Coastal and Estuarine Morphodynamics: RCEM 2005 - Proceedings of the 4th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; Vol. 2).