Design flood estimation in ungauged catchments using genetic algorithm-based artificial neural network (GAANN) technique for Australia

K. Aziz, Sohail Rai and A. Rahman ()

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2015, vol. 77, issue 2, 805-821

Abstract: This paper focuses on the development and testing of the genetic algorithm (GA)-based regional flood frequency analysis (RFFA) models for eastern parts of Australia. The GA-based techniques do not impose a fixed model structure on the data and can better deal with nonlinearity of the input and output relationship. These nonlinear techniques have been applied successfully in many hydrologic problems; however, there have been only limited applications of these techniques in RFFA problems, particularly in Australia. A data set comprising of 452 stations is used to test the GA for artificial neural networks (ANN) optimization known as GAANN. The results from GAANN were compared with the results from back-propagation for ANN optimization known as BPANN. An independent testing shows that both the GAANN and BPANN methods are quite successful in RFFA and can be used as alternative methods to check the validity of the traditional linear models such as quantile regression technique. Copyright Springer Science+Business Media Dordrecht 2015

Keywords: Floods; Genetic algorithm; Regional flood frequency analysis; Ungauged catchments (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/s11069-015-1625-x

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