River Bedup Catchment Water Level Prediction Using Pre-developed ANN Model of Siniawan Catchment
Abstract
This study proposes the application of Artificial Neural Network (ANN) in the prediction of hourly water level under tidal influence for Sadong Basin. An ANN is undoubtedly a robust tool for forecasting various non-linear hydrologic processes, including the water level prediction. It is a flexible mathematical structure which is capable to generalize patterns in imprecise or noisy and ambiguous input and output data sets. In this study, ANN models were developed specifically to forecast the hourly water level for River Bedup Station. Distinctive networks were trained, validated and simulated using hourly data obtained from Department of Irrigation and Drainage, Sarawak in Kuching. The performances of ANN were evaluated based on the coefficient of efficiency, E2 and the coefficient of correlation, R. The back propagation algorithm was adopted for this study. Models used in this study is trained, validated and simulated with scaled conjugate gradient algorithm (trainscg) with two hours of antecedent data, learning rate and the number of neurons in the hidden layer of 0.8 and 40 respectively. In this study, the models generated an accuracy of 100% for all training, validating and simulating stages. It has been found that the ANN has the potential to solve the problems of water level prediction.References
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