Abstract
Estimation of peak flood discharge (PFD) for a given return period is of utmost importance for planning and design of hydraulic structures in the project site. The peak value of a flood discharge having a pre-defined average return period is determined by frequency analysis, known as flood frequency analysis (FFA). The paper compares the eight probability distributions used for estimation of PFD for Malakkara and Neeleswaram. Maximum likelihood method is used for determination of parameters of the probability distributions. Goodness-of-Fit tests such as Anderson-Darling and Kolmogorov-Smirnov are applied for checking the adequacy of fitting of the distributions to the recorded annual maximum discharge. A diagnostic test of D-index is used for the selection of a most suitable distribution for FFA. Based on GoF and diagnostic test results, the study shows the EV1 distribution is better suited for estimation of PFD for Malakkara whereas LP3 for Neeleswaram.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.