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(Article of periodic en Anglais - 2010)

Document title

Long-term river meandering as a part of chaotic dynamics ? A contribution from mathematical modelling

Authors(s) and Affiliation(s)

FRASCATI A. (1) ; LANZONI S. (1) ;
(1) Dip. di Ingegneria Idraulica, Marittima Ambientale e Geotecnica, Univ., Padova, ITALIE

Abstract

The AA. study the possible signatures of a chaotic behaviour or a self-organized criticality state triggered in river meandering dynamics by repeated occurrence of cutoff processes. The analysis is carried out examining, through some robust nonlinear methodologies inferred from time series analysis, both the spatial series of local curvatures and the time series of long-term channel sinuosity. Temporal distribution of cutoff inter-arrivals is also investigated. The analyzed data have been obtained by using a suitable physics-based simulation model for river meandering. The results are consistent and show that, at least from a modelling point of view, no evidence of chaotic determinism or self-organized criticality is detectable in the investigated meandering dynamic

Source

Article of periodic

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

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

Millesime : 2010, vol. 35, no7 [pp. 791-802]

Bibliographic references : 56 ref.

Collation : 5 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1974

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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