Status of automatic calibration for hydrologic models: Comparison with multilevel expert calibration

Hoshin Vijai Gupta, Soroosh Sorooshian, Patrice Ogou Yapo

Research output: Contribution to journalArticle

778 Citations (Scopus)

Abstract

The usefulness of a hydrologic model depends on how well the model is calibrated. Therefore, the calibration procedure must be conducted carefully to maximize the reliability of the model. In general, manual procedures for calibration can be extremely time-consuming and frustrating, and this has been a major factor inhibiting the widespread use of the more sophisticated and complex hydrologic models. A global optimization algorithm entitled shuffled complex evolution recently was developed that has proved to be consistent, effective, and efficient in locating the globally optimal model parameters of a hydrologic model. In this paper, the capability of the shuffled complex evolution automatic procedure is compared with the interactive multilevel calibration multistage semiautomated method developed for calibration of the Sacramento soil moisture accounting streamflow forecasting model of the U.S. National Weather Service. The results suggest that the state of the art in automatic calibration now can be expected to perform with a level of skill approaching that of a well-trained hydrologist. This enables the hydrologist to take advantage of the power of automated methods to obtain good parameter estimates that are consistent with the historical data and to then use personal judgment to refine these estimates and account for other factors and knowledge not incorporated easily into the automated procedure. The analysis also suggests that simple split-sample testing of model performance is not capable of reliably indicating the existence of model divergence and that more robust performance evaluation criteria are needed.

Original languageEnglish (US)
Pages (from-to)135-143
Number of pages9
JournalJournal of Hydrologic Engineering
Volume4
Issue number2
DOIs
StatePublished - Apr 1999

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Calibration
calibration
comparison
Soil moisture
Global optimization
streamflow
soil moisture
divergence
weather
Testing

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology

Cite this

Status of automatic calibration for hydrologic models : Comparison with multilevel expert calibration. / Gupta, Hoshin Vijai; Sorooshian, Soroosh; Yapo, Patrice Ogou.

In: Journal of Hydrologic Engineering, Vol. 4, No. 2, 04.1999, p. 135-143.

Research output: Contribution to journalArticle

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