TITLE

EGE BÖLGESİ STANDART SÜRELİ YILLIK MAKSIMUM YAĞIŞLARI İÇİN EN UYGUN DAĞILIMLAR

AUTHOR(S)
KARAHAN, Halil; ÖZKAN, Esra
PUB. DATE
August 2013
SOURCE
Pamukkale University Journal of Engineering Sciences;2013, Vol. 19 Issue 3, p152
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Knowing the properties like amount, duration, intensity, spatial and temporal variation etc... of precipitation which is the primary input of water resources is required for planning, design, construction and operation studies of various sectors like water resources, agriculture, urbanization, drainage, flood control and transportation. For executing the mentioned practices, reliable and realistic estimations based on existing observations should be made. The first step of making a reliable estimation is to test the reliability of existing observations. In this study, Kolmogorov-Smirnov, Anderson-Darling and Chi-Square goodness of distribution fit tests were applied for determining to which distribution the measured standard duration maximum precipitation values (in the years 1929-2005) fit in the meteorological stations operated by the Turkish State Meteorological Service (DMÄ°) which are located in the city and town centers of Aegean Region. While all the observations fit to GEV distribution according to Anderson-Darling test, it was seen that short, mid-term and long duration precipitation observations generally fit to GEV, Gamma and Log-normal distribution according to Kolmogorov-Smirnov and Chi-square tests. To determine the parameters of the chosen probability distribution, maximum likelihood (LN2, LN3, EXP2, Gamma3), probability-weighted distribution (LP3,Gamma2), L-moments (GEV) and least squares (Weibull2) methods were used according to different distributions.
ACCESSION #
89592945

 

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