出版社：Niğde Üniversitesi Mühendislik Fakültesi Dekanlığı
摘要：In this study, Regional Frequency Analysis of annual flood peaks (AFP) series of natural streams discharging to the Black Sea using AFP series recorded 52 stream-gauging stations is done by L-Moments method. Application of method performed by using computer program provided by Hosking reveals that working area including five major basins cannot be treated as a single homogeneous region as a whole (H 1 =13.6>>1.0). Taking into consideration physiographical and hydrological peculiarities of these basins and according to H 1 criteria, working area is divided into 11 different homogeneous regions. According to Z DIST goodness-of-fit criterion, Generalized Normal Distribution is determined to be the best probability distribution in five of eleven sub-regions and Generalized Extreme Values, Pearson Type 3, Generalized Logistic distributions are found to be the best in three, two, and one sub-regions, respectively. As a result of index-flood frequency analysis with these distributions, regional annual flood peaks maps covering range of return periods from 2 to 1000 years are produced by grid method for working area. Keywords: L−Moments, flood, grid method, radial−based function
