A novel hybrid neural network based on continuity equation and fuzzy pattern-recognition for downstream daily river discharge forecasting

Xiao Yun Chen, Kwok Wing Chau, Wen Chuan Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

Forecasting of river discharge is crucial in hydrology and hydraulic engineering owing to its use in the design and management of water resource projects. The problem is customarily settled with data-driven models. In this research, a novel hybrid model which combines continuity equation and fuzzy pattern-recognition concept with artificial neural network (ANN), is presented for downstream river discharge forecasting in a river network. Time-varying water storage in a river station and fuzzy feature of river flow are considered accordingly. To verify the proposed model, traditional ANN model, fuzzy pattern-recognition neural network model, and hydrological modeling network model have been employed as the benchmark models. The root mean squared error, Nash-Sutcliffe efficiency coefficient and accuracy are adopted as evaluation criteria. The proposed hybrid model is applied to compute downstream river discharge in the Yellow River, Georgia, USA. Results indicate that the proposed hybrid model delivers better performance, which can effectively improve forecasting capability at the studied station. It is, therefore, proposed as a novel model for downstream river discharge forecasting because of its highly nonlinear, fuzzy and non-stationary properties.
Original languageEnglish
Pages (from-to)733-744
Number of pages12
JournalJournal of Hydroinformatics
Volume17
Issue number5
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • Artificial neural network
  • Continuity equation
  • Daily river discharge forecasting
  • Fuzzy pattern-recognition
  • Particle swarm optimization
  • Storage reservoir

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Atmospheric Science

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