Unit hydrograph and effective precipitation identification

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1995 (EN)
Unit hydrograph and effective precipitation identification (EN)

Obled, Ch (EN)
Rodriguez, JY (EN)
Nalbantisa, I (EN)

N/A (EN)

A recently proposed method for calibrating lumped rainfall-runoff models, called FDTFERUHDIT, is analysed and evaluated on synthetic data. Based on the Unit Hydrograph concept this method performs a simultaneous identification of the excess rainfall series and the transfer function or unit hydrograph through an alternating iterative procedure without presuming any runoff production model or applying any arbitrary baseflow removal. A general evaluation framework was built to allow for generation of realistic data both error-free and contaminated with controlled errors. The problems of the method's convergence and sensitivity to errors in the data and the model structure assumed are tackled. A rather exhaustive series of tests involve also evaluations of the effects of a priori choices of optimisation algorithms and their parameters, as well as assessments of sampling effects. Combinations of these factors are also tested. Finally, useful guidelines for practical use of the new identification approach are derived. © 1995. (EN)


Hydrographs (EN)
effective precipitation (EN)
rainfall (EN)
Evaluation Framework (EN)
Transfer Function (EN)
unit hydrograph (EN)
model calibration (EN)
rainfall-runoff models (EN)
Identification (EN)
Calibration (EN)
Unit (EN)
Synthetic Data (EN)
rainfall/runoff model (EN)
Precipitation (EN)
Runoff (EN)
Sampling Effect (EN)
Product Model (EN)
Unit Hydrograph (EN)
Modelling (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Journal of Hydrology (EN)



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