Comparison of Various Frequency Distributions (Chindwin Basin), Myanmar
Journal Title: Invention Journal of Research Technology in Engineering & Management - Year 2018, Vol 2, Issue 11
Abstract
In this paper, computed flood values obtained by frequency analysis for each station in the selected basin are compared with the values by HEC statistical software package whether or not to be reliable. Flood frequency analysis refers to the application of frequency analysis to study the occurrence of floods. Using the annual flood peak data series of three hydrological stations in Chindwin basin, the various probability distributions are analyzed with four methods such as Normal, Log-Normal, Pearson Type-III and Log-Pearson Type III. Chi-square and Kolmogorov-Smirnov (K-S) tests, the most commonly used tests of goodness of fit, are applied to check the fit of probability distribution used in this study. Standard errors are also calculated for each kind of probability distributions. Based on standard errors and reliability of analysis, it can be concluded that Pearson type III distribution function is the most appropriate distributions for the area under study.
Authors and Affiliations
Mi Yin San
Keywords
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