Application of Data-Driven Models in Rainfall-Runoff Modelling via Principal Component Analysis

Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICESAL01_021

تاریخ نمایه سازی: 22 مهر 1394

Abstract:

In this study, the performance of two kinds of statistical neural networks was studied in rainfall-runoff simulation. Two mentioned neural networks included Radial Based Function (RBF) and General Regression Neural Network (GRNN). In order to compare the obtained results with an indicator, Multi-Layer Perceptron (MLP) neural network, which is well known as an efficient method was applied. In order to simulate the rainfall-runoff process, theprecipitation data of 10 stations in Karkheh basin, located in Iran, and discharge data of AbdolKhan station, which is the outlet point of the basin, were employed. Since with respect to a three-step delay for inputs in order to create a rainfall-runoff model, the number of outputs were 30, using the principal component analysis, three initial principal components that fulfilled about 90% of total data variance, were used. The results showed that GRNN method has had the best performance, and subsequently, MLP and RBF has ranked as second and third rate.

Authors

Amir Reze Nemati

Young Researchers and Elite Club, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran

Mahmoud Zakeri Niri

corresponding author Department of Civil Engineering, Islamshahr Branch, Islamic Azad University, Tehran, Iran

Saber Moazami Goudarzi

Department of Civil Engineering, Islamshahr Branch, Islamic Azad University, Tehran, Iran

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