Predicting Flood Frequency with the LH-Moments Method: A Case Study of Prigor River, Romania

The higher-order linear moments (LH-moments) method is one of the most commonly used methods for estimating parameters probability distributions in flood frequency analysis without sample censoring. This article presents relationships necessary to estimate eight analysis. Eight three using first- and second-order LH-moments are presented, namely Pearson V distribution, CHI inverse Wilson–Hilferty Pseudo-Weibull Log-normal generalized Pareto Type I distribution Fréchet distribution. exact approximate relations parameter estimation as factor specific each method. In addition, variation LH-skewness–LH-kurtosis diagram these statistical indicators. To numerically represent analyzed distributions, a case study annual maximum series was carried out Prigor River. presented compared (L-moments) method, which that intended be development new norm Romania determining flows. For River, fit first performance evaluated moment values diagrams.