Paper Information

Journal:   JOURNAL OF WATERSHED MANAGEMENT RESEARCH   SPRING-SUMMER 2016 , Volume 7 , Number 13; Page(s) 218 To 229.
 
Paper: 

ESTIMATION OF SUSPENDED SEDIMENT LOAD CONCENTRATION IN RIVER SYSTEM USING GROUP METHOD OF DATA HANDLING (GMDH)

 
DOI: 

10.18869/acadpub.jwmr.7.13.229

 
Author(s):  EIVANI ZAHRA*, AHMADI MOHAMMAD MEHDI, QADERI KOUROSH
 
* UNIVERSITY OF SHAHID BAHONAR, KERMAN
 
Abstract: 

Accurate estimation of sediment load in rivers and reservoirs is an important issue in hydraulic engineering as it affects the design, management and operation of water resources projects. Extract of mathematical relationship in sediment transportation has special complexity. Data-driven methods can be used for Modeling of these phenomena. One of these heuristic self-organization methods is Group Method of Data Handling (GMDH) that is uses as a method to detect non-linear relationships between input and output variables. In this research, based on GMDH, a model has been developed for the prediction of suspended sediment concentration in river systems. The daily stream flow and suspended sediment concentration data from two stations, Rio Valencia no Station and Quebrada Blanca Station, were used for evaluating the ability of model. The accuracy of model was evaluated using mean square error (MSE), Relative Bias (RB) and determination coefficient (R2) statistics. Comparison between the results of statistical parameters of model with other algorithms like Neural Networks, Neuro-Fuzzy and Genetic Programming indicated that GMDH has high capability for predicting and simulating of suspended sediment concentration than other models.

 
Keyword(s): GROUP METHOD OF DATA HANDLING (GMDH), SEDIMENT TRANSPORTATION RATE, SIMULATION
 
References: 
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