منابع مشابه
Flood frequency analysis: assumptions and alternatives
Flood frequency analysis (FFA) is a form of risk analysis, yet a risk analysis of the activity of FFA itself is rarely undertaken. The recent literature of FFA has been characterized by: (1) a proliferation of mathematical models, lacking theoretical hydrologic justification, but used to extrapolate the return periods of floods beyond the gauged record; (2) official mandating of particular mode...
متن کاملFrequency Analysis of Stream Flow Data Using L-moments of Probability Distributions for Estimation of Peak Flood Discharge
Estimation of Peak Flood Discharge (PFD) at a desired location on a river is important for planning, design and management of hydraulic structures. This can be achieved through Flood Frequency Analysis (FFA) by fitting of probability distributions to the series of annual maximum discharge data. In the present study, Exponential, Extreme Value Type-1, Extreme Value Type-2, Generalized Pareto and...
متن کاملEvaluating the Performance of the Artificial Bee Colony Algorithm in Flood Frequency Analysis
Selection of the appropriate distribution function and estimation of its parameters are two fundamental steps in the accurate estimation of flood magnitude. This study relied on the concept of optimization by meta heuristic algorithms to improve the results obtained from the conventional methods of parameter estimation, such as maximum likelihood (ML), moments (MOM) and probability weighted mom...
متن کاملThe formation of groups for regional flood frequency analysis
A new technique is developed for identifying groups for regional flood frequency analysis. The technique uses a clustering algorithm as a starting point for partitioning the collection of catchments. The groups formed using the clustering algorithm are subsequently revised to improve the regional characteristics based on three requirements that are defined for effective groups. The result is ov...
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ژورنال
عنوان ژورنال: Sakarya University Journal of Science
سال: 2018
ISSN: 1301-4048
DOI: 10.16984/saufenbilder.402190