Catchment Calibration Using Fractional-Factorial and Central-Composite-Designs-Based Response Surface
Publication: Journal of Hydraulic Engineering
Volume 121, Issue 6
Abstract
A new catchment calibration approach based on the fractional-factorial and central-composite designs (FFD-CCD) is presented in this paper. The proposed method requires fewer simulations (almost 75% less) than the approach based on the factorial and central-composite designs (FD-CCD) (Ibrahim and Liong 1992). However, the reduction in the number of simulations does not significantly affect the prediction accuracy of the model. The calibration model has been applied to the Upper Bukit Timah catchment in Singapore. Results show that the prediction errors in peak flow and runoff volume in the proposed model are as small as those errors resulting from the original FD-CCD approach.
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Information
Published In
Journal of Hydraulic Engineering
Volume 121 • Issue 6 • June 1995
Pages: 507 - 510
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Jun 1, 1995
Published in print: Jun 1995
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