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Journal articles
Seeking genericity in the selection of parameter sets: Impact on hydrological model efficiency
Abstract : This paper evaluates the use of a small number of generalist parameter sets as an alternative to classical calibration. Here parameter sets are considered generalist when they yield acceptable performance on a large number of catchments. We tested the genericity of an initial collection of 10(6) parameter sets sampled in the parameter space for the four-parameter GR4J rainfall-runoff model. A short list of 27 generalist parameter sets was obtained as a good compromise between model efficiency and length of the short list. A different data set was used for an independent evaluation of a calibration procedure, in which the search for an optimum parameter set is only allowed within this short list. In validation mode, the performance obtained is inferior to that of a classical calibration, but when the amount of data available for calibration is reduced, the generalist parameter sets become progressively more competitive, with better results for calibration series shorter than 1 year. Key Points
Cited literature [23 references]
https://hal.archives-ouvertes.fr/hal-01196447
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Saturday, May 16, 2020 - 4:41:33 AM
Last modification on : Friday, February 5, 2021 - 3:34:02 PM
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Saturday, May 16, 2020 - 4:41:33 AM
Last modification on : Friday, February 5, 2021 - 3:34:02 PM
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