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Original Articles

Nonlinear models of dynamic hydrology

Modèles non linéaires d'hydrologie dynamique

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Pages 163-185 | Received 10 Jan 1985, Accepted 18 Dec 1985, Published online: 21 Dec 2009
 

ABSTRACT

Methods of description of the nonlinear effects in dynamic hydrological systems have been surveyed. Particular reference was given to those sorts of nonlinear methods which do not require significantly more computational effort in comparison with classical linear models. Original concepts in the field of nonlinear state-space models, Volterra series models and the general framework of multilinear models were tackled in more detail. Illustrative numerical examples of flood routing and rainfall-runoff modelling were presented.

RESUME

On a étudié les méthodes de description des effets non linéaires dans les systèmes d'hydrologie dynamique. On s'est référé particulièrement à ces types de méthodes non linéaires qui n'exigent pas une masse de calculs significativement plus importante que dans le cas des modèles linéaires classiques. On a entrepris plus en détail l'études de concepts originaux dans le domaine des modèles non linéaires état-espace, des modèles des séries de Volterra et de la structure générale de modèles multilinéaires. On a présenté des exemples numériques représentatifs de la mise en modèle de la propagation des crues et des relations pluies-débits.

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