Optimal use of the SCE-UA global optimization method for calibrating watershed models

Qingyun Duan, Soroosh Sorooshian, Hoshin Vijai Gupta

Research output: Contribution to journalArticle

737 Citations (Scopus)

Abstract

The difficulties involved in calibrating conceptual watershed models have, in the past, been partly attributable to the lack of robust optimization tools. Recently, a global optimization method known as the SCE-UA (shuffled complex evolution method developed at The University of Arizona) has shown promise as an effective and efficient optimization technique for calibrating watershed models. Experience with the method has indicated that the effectiveness and efficiency of the algorithm are influenced by the choice of the algorithmic parameters. This paper first reviews the essential concepts of the SCE-UA method and then presents the results of several experimental studies in which the National Weather Service river forecast system-soil moisture accounting (NWSRFS-SMA) model, used by the National Weather Service for river and flood forecasting, was calibrated using different algorithmic parameter setups. On the basis of these results, the recommended values for the algorithmic parameters are given. These values should also help to provide guidelines for other users of the SCE-UA method.

Original languageEnglish (US)
Pages (from-to)265-284
Number of pages20
JournalJournal of Hydrology
Volume158
Issue number3-4
DOIs
StatePublished - Jun 15 1994

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system optimization
hydrologic models
watershed
weather
methodology
rivers
flood forecasting
river
experimental study
soil moisture
method
soil water
parameter
services

ASJC Scopus subject areas

  • Soil Science
  • Earth-Surface Processes

Cite this

Optimal use of the SCE-UA global optimization method for calibrating watershed models. / Duan, Qingyun; Sorooshian, Soroosh; Gupta, Hoshin Vijai.

In: Journal of Hydrology, Vol. 158, No. 3-4, 15.06.1994, p. 265-284.

Research output: Contribution to journalArticle

Duan, Qingyun ; Sorooshian, Soroosh ; Gupta, Hoshin Vijai. / Optimal use of the SCE-UA global optimization method for calibrating watershed models. In: Journal of Hydrology. 1994 ; Vol. 158, No. 3-4. pp. 265-284.
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