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24 Oct 2011
Status : this preprint was under review for the journal HESS but the revision was not accepted.
Real-time flood forecasting by employing artificial neural network based model with zoning matching approach
M. Sulaiman , A. El-Shafie , O. Karim , and H. Basri
Flood forecasting models are a necessity, as they help in planning for flood events, and thus help prevent loss of lives and minimize damage. At present, artificial neural networks (ANN) have been successfully applied in river flow and water level forecasting studies. ANN requires historical data to develop a forecasting model. However, long-term historical water level data, such as hourly data, poses two crucial problems in data training. First is that the high volume of data slows the computation process. Second is that data training reaches its optimal performance within a few cycles of data training, due to there being a high volume of normal water level data in the data training, while the forecasting performance for high water level events is still poor. In this study, the zoning matching approach (ZMA) is used in ANN to accurately monitor flood events in real time by focusing the development of the forecasting model on high water level zones. ZMA is a trial and error approach, where several training datasets using high water level data are tested to find the best training dataset for forecasting high water level events. The advantage of ZMA is that relevant knowledge of water level patterns in historical records is used. Importantly, the forecasting model developed based on ZMA successfully achieves high accuracy forecasting results at 1 to 3 h ahead and satisfactory performance results at 6 h. Seven performance measures are adopted in this study to describe the accuracy and reliability of the forecasting model developed.
Received: 05 Oct 2011 – Discussion started: 24 Oct 2011
M. Sulaiman , A. El-Shafie , O. Karim , and H. Basri
Status: closed
Status: closed
AC : Author comment | RC : Referee comment | SC : Short comment | EC : Editor comment
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Status: closed
Status: closed
AC : Author comment | RC : Referee comment | SC : Short comment | EC : Editor comment
- Printer-friendly version
- Supplement
M. Sulaiman , A. El-Shafie , O. Karim , and H. Basri
M. Sulaiman , A. El-Shafie , O. Karim , and H. Basri
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