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Original Articles

Application of the geomorphological instantaneous unit hydrograph theory to development of forecasting models in Poland

L'application de la théorie de L'hydrogramme instantané unitaire gêomorphologique pour la mise au point des modèles de prévision en Pologne

Pages 263-270 | Received 16 Apr 1985, Accepted 04 Dec 1985, Published online: 21 Dec 2009
 

ABSTRACT

Geomorphological instantaneous unit hydrograph (GIUH) theory has been applied for the estimation of the parameters of two conceptual models: a linear cascade model and a Laurenson-type model. Conceptual models, especially the linear cascade model, are more convenient for operational forecasting than the original GIUH model. A single linear reservoir model is suggested, with limited storage to represent the subsurface flow component. Subsurface flow is significant in Polish mountainous river catchments. Preliminary results of applying the model to operational flood forecasting are described.

RESUME

On a appliqué la théorie l'hydrogramme instantané unitaire (GIUH) pour l'estimation des paramètres des deux modèles conceptuels: le modèle des cascades linéaires des réservoirs et le modèle de Laurenson. Les modèles conceptuels (surtout le modèle des cascades des réservoirs linéaires) sont meilleurs pour les prévisions opérationnelles que les modèles originaux (GIUH). On a proposé un réservoir limité unitaire linéaire comme modèle du débit hypodermique. Le débit hypodermique est d'une importance capitale dans les bassins des rivières montagneuses en Pologne. On a décrit les résultats préliminaires de l'application de GIUH aux prévisions opérationelles des crues.

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