Volume 8, Issue 15 (9-2017)
J Watershed Manage Res 2017, 8(15): 250-258 |
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(2017). Estimation of Event Flood Peak Discharge and Runoff Volume using Adaptive Neuro-Fuzzy Inference System (A Case Study: Kasilian Watershed). J Watershed Manage Res. 8(15), 250-258. doi:10.29252/jwmr.8.15.250
URL: http://jwmr.sanru.ac.ir/article-1-860-en.html
URL: http://jwmr.sanru.ac.ir/article-1-860-en.html
Abstract: (4734 Views)
Prediction of flood peak discharge and runoff volume is one of the major challenges in the management of watersheds. The present study was carried out to estimate event flood peak discharge and runoff volume using artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) in Kasilian watershed, Iran. For this purpose, 15 rainfall characteristics were considered for 60 storms from 1975 to 2009. Statistical indices of mean square error (RMSE), coefficient of efficiency (CE) and the coefficient of determination (R2) were used to assess models performance. The results showed that flood peak discharge variable, ANFIS with RMSE=1.28m3s-1, CE=%82 and R2=0.86 has better performance than ANN with RMSE=1.22m3s-1, CE=%82 and R2=0.95 and for runoff volume variable, ANFIS with RMSE=2369.54 m3, CE=%99 and R2=0.99 has better performance than ANN with RMSE=10282.82m3, CE=%98 and R2=0.98. Also, the results of the sensitivity analysis indicated that the most sensitive factor is excess rainfall for runoff flood peak discharge and runoff volume estimation.
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