Evaluvating the Performance of Wavelet Neural Network Models in Estimation of Daily Discharge

Document Type : Research Paper

Authors

1 Assistant Professor of Civil Engineering, Islamic Azad University, Khorramabad.

2 Ph.D. Student of Water Structure, Faculty of Agric., University of Lorestan, Khorramabad, Iran.(

Abstract

River flow prediction is one of the most important key issues in the management and planning of water resources, in particular the adoption of proper decisions in the event of floods and the occurrence of droughts. In order to predict the flow rate of rivers, various approaches have been introduced in hydrology, in which intelligent models are the most important ones. The application of artificial neural networks (ANNs) to various aspects of hydrological modeling has undergone much investigation in recent years. This interest has been motivated by the complex nature of hydrological systems and the ability of ANNs to model non-linear relationships. ANNs are essentially semi-parametric regression estimators and well suited for hydrological modeling, as they can approximate virtually any (measurable) function up to an arbitrary degree of accuracy (Hornik et al., 1989). A significant advantage of the ANN approach in system modeling is that one need not have a well-defined process for algorithmically converting an input to an output.

Keywords

References

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Irrigation Sciences and Engineering
Volume 42, Issue 3
October 2019
Pages 105-116

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History

  • Receive Date: 15 May 2017
  • Revise Date: 22 October 2017
  • Accept Date: 30 October 2017
  • Publish Date: 23 September 2019

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