Adequacy of a Multi-objective Regional Calibration Method Incorporating a Sequential Regionalisation

H. Kim ()

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2014, vol. 28, issue 15, 5507-5526

Abstract: A multi-objective regional calibration technique that incorporates a sequential regionalisation procedure was introduced and evaluated based on 12 catchments in Korea. This study was focused on investigating the impacts of the predictive capacity of a rainfall-runoff model for multiple objectives on the adequacy of regional relationships during the regional calibration. The effectiveness of the regional calibration using a multi-objective approach was evaluated by comparing the predictive performance of the regional calibration using a single-objective approach. The comparative assessment of the regional calibration approaches in the regionalisation suggests that the predictability of the regional models derived from the multi-objective regional calibration approach is generally good and reasonable with respect to the simultaneous catchment response to high and low flows and water balance. However, the multi-objective regional calibration approach displayed weaknesses associated with matching the water balance in the hydrograph, which was primarily caused by the reduced variation of the regional parameters. A more extensive study with a larger number of catchments is needed to develop more accurate regional relationships from the multi-objective regional calibration approach. Copyright Springer Science+Business Media Dordrecht 2014

Keywords: Regional calibration; Multi-objective approach; Sequential regionalisation; Regional relationship (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s11269-014-0819-4

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