Frequency Analysis of Flood Flow at Garudeshwar Station in Narmada River, Gujarat, India
Journal Title: Universal Journal of Environmental Research and Technology - Year 2013, Vol 3, Issue 6
Abstract
This paper presents a frequency distribution study on maximum monthly flood data in Narmada River at Garudeshwar station using widely used frequency distributions for periods from 1949 to 1979. The Normal, Lognormal, Log pearson type III and Gumbell extreme value type I are proposed and tested together with their single distributions to identify the optimal model for maximum monthly flood analysis. The selected model will be determined based on the minimum error produced by some criteria of goodness of-fit (GOF) tests. The results indicated that Normal distribution is better than the other distributions in modeling maximum monthly flood magnitude at Garudeshwar station in Narmada River. Hence frequency curve at Garudeshwar station is derived using Normal distribution method. However these results can vary between the flow gauge stations which are strongly influenced by their geographical, topographical and climatic factors. The following study can be used by planning and designing engineers for deciding the dimension of hydraulic structures such as bridges, dams, canals ,levees , and spillways etc. This study can be further extended into preparation of flood forecasting techniques and flood inundation maps for Narmada River.
Authors and Affiliations
Khan Mujiburrehman
Keywords
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