Document Type : Research Paper

Authors

• Mehdi Sepehri ¹
• Seyyed Abbas Atapourfard ²
• Alireza Ildoromi ³
• Hamid Nori ⁴
• Saba Goodarz ¹
• Mohammadmehdi Artimani ⁵
• Morteza Solgi ⁵

¹ MSc, Faculty of Natural Resources, Malayer University, Iran

² Assistant Professor, Soil Conservation and Watershed Management Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

³ Associate Professor, Faculty of Natural Resources, Malayer University, Iran

⁴ Assistant Professor, Faculty of Natural Resources, Malayer University, Iran

⁵ MSc, Soil Conservation and Watershed Management Research Department, Hamedan Agricultural and Natural Resources Research and Education Center, AREEO, Hamedan, Iran

Abstract

Peak flow estimation is one of the major issues in water resources and flood management that have basic role in the design of hydraulic structures and biomechanics activities in basins. So that a proper assessment has a basic role in the success of administrative works. In this paper, using artificial intelligence methods (MLP Neural Network, the mixture of SOFM with MLP, the mixture of FCM with ANFIS) to estimate Yalfan River^’s peak discharge in hydrometer local station. For these models, eight variables have been considered as the inputs that includes rainfall amount in the occurrence time of flood, rainfall of five days ago from occurrence of flood, curve number of the basin (CN), basic discharge and finally peak discharge are considered as the output. In the artificial intelligences after preprocessing of the data, the optimal structure of the models are determined with input and output data, evaluation criteria and trial and error. At the end, the MLP model had better performance compared to ANFIS+FCM, MLP+SOFM, GRNN models.

Keywords

• ANFIS
• Clustering
• GRNN
• MLP
• Neural network
• Peak flow
• SOFM
• Yalfan