TY - JOUR TT - REGIONAL FREQUENCY ANALYSIS OF ANNUAL FLOOD PEAKS OF NATURAL STREAMS DISCHARGING TO THE BLACK SEA BY THE L-MOMENTS METHOD AU - Çıtakoğlu, Hatice AU - Demir, Vahdettin AU - Haktanır, Tefaruk PY - 2017 DA - July Y2 - 2017 DO - 10.28948/ngumuh.341711 JF - Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi JO - NÖHÜ Müh. Bilim. Derg. PB - Nigde Omer Halisdemir University WT - DergiPark SN - 2564-6605 SP - 571 EP - 580 VL - 6 IS - 2 KW - L−Momentler KW - taşkın KW - grid yöntem KW - radyal tabanlı fonksiyon N2 - In this study, Regional Frequency Analysis ofannual flood peaks (AFP) series of natural streams discharging to the Black Seausing AFP series recorded 52 stream-gauging stations is done by L-Momentsmethod. Application of method performed by using computer program provided byHosking reveals that working area including five major basins cannot be treatedas a single homogeneous region as a whole (H1=13.6>>1.0).Taking into consideration physiographical and hydrological peculiarities ofthese basins and according to H1 criteria, working area is dividedinto 11 different homogeneous regions. According to ZDISTgoodness-of-fit criterion, Generalized Normal Distribution is determined to bethe best probability distribution in five of eleven sub-regions and GeneralizedExtreme Values, Pearson Type 3, Generalized Logistic distributions are found tobe the best in three, two, and one sub-regions, respectively. As a result of index-floodfrequency analysis with these distributions, regional annual flood peaks mapscovering range of return periods from 2 to 1000 years are produced by gridmethod for working area. 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UR - https://doi.org/10.28948/ngumuh.341711 L1 - https://dergipark.org.tr/en/download/article-file/347155 ER -