Bivariate flood frequency analysis using the copula function: a case study of the Litija station on the Sava River

摘要: As an alternative to the commonly used univariate flood frequency analysis, copula analysis can be used. In this study, 58 events at Litija gauging station on Sava River in Slovenia were analysed, selected based annual maximum discharge values. Corresponding hydrograph volumes and durations considered. Different bivariate copulas from three families applied compared using different statistical, graphical upper tail dependence tests. The parameters of estimated method moments with inversion Kendall's tau. Gumbel–Hougaard was as most appropriate for pair peak volume (Q-V). same also duration (V-D), Student-t (Q-D). differences among not significant. primary, secondary conditional return periods calculated compared, some relationships them obtained. Copyright © 2014 John Wiley & Sons, Ltd.