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Global Calibration of Distributed Hydrological Models for Large-Scale Applications

Ricard, S. / Bourdillon, R. / Roussel, D. / Turcotte, R.

Large-scale distributed hydrological modeling is nowadays more widely applied for water resource management. To ensure the spatial consistency of distributed parameters, an alternative calibration strategy is suggested: the global calibration. This approach aims to identify a single parameter set suitable for every stations located within the modeled domain. A global calibration procedure is applied and tested over a large portion of the St. Lawrence River basin ( $387,000 {km}^{2}$ ) using Hydrotel, a physically based semidistributed hydrological model. Despite limitations in estimating high flows on small catchments, global calibration is regarded as a fair trade-off between local performance and regional consistency of parametric information. In the near future, the global calibration strategy will act as a key methodological framework for large-scale hydrological assessments.

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Global Calibration of Distributed Hydrological Models for Large-Scale Applications

Ricard, S. / Bourdillon, R. / Roussel, D. / Turcotte, R.

Large-scale distributed hydrological modeling is nowadays more widely applied for water resource management. To ensure the spatial consistency of distributed parameters, an alternative calibration strategy is suggested: the global calibration. This approach aims to identify a single parameter set suitable for every stations located within the modeled domain. A global calibration procedure is applied and tested over a large portion of the St. Lawrence River basin ( $387,000 {km}^{2}$ ) using Hydrotel, a physically based semidistributed hydrological model. Despite limitations in estimating high flows on small catchments, global calibration is regarded as a fair trade-off between local performance and regional consistency of parametric information. In the near future, the global calibration strategy will act as a key methodological framework for large-scale hydrological assessments.

Global Calibration of Distributed Hydrological Models for Large-Scale Applications

Ricard, S. / Bourdillon, R. / Roussel, D. / Turcotte, R.

Large-scale distributed hydrological modeling is nowadays more widely applied for water resource management. To ensure the spatial consistency of distributed parameters, an alternative calibration strategy is suggested: the global calibration. This approach aims to identify a single parameter set suitable for every stations located within the modeled domain. A global calibration procedure is applied and tested over a large portion of the St. Lawrence River basin ( $387,000 {km}^{2}$ ) using Hydrotel, a physically based semidistributed hydrological model. Despite limitations in estimating high flows on small catchments, global calibration is regarded as a fair trade-off between local performance and regional consistency of parametric information. In the near future, the global calibration strategy will act as a key methodological framework for large-scale hydrological assessments.

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Title:

Global Calibration of Distributed Hydrological Models for Large-Scale Applications

Contributors:

Ricard, S. (author) / Bourdillon, R. (author) / Roussel, D. (author) / Turcotte, R. (author)

Published in:

Journal of Hydrologic Engineering ; 18 ; 719-721

Publication date:

2012-05-28

Size:

32013-01-01 pages

ISSN:

1084-0699 , 1943-5584

DOI:

https://doi.org/10.1061/(ASCE)HE.1943-5584.0000665

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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