Hydrology and Earth System Sciences www.hydrol-earth-syst-sci.net 1027-5606 1607-7938 12 3 2008 10.5194/hess-12-703-2008 http://www.hydrol-earth-syst-sci.net/12/703/2008/ http://www.hydrol-earth-syst-sci.net/12/703/2008/hess-12-703-2008.html http://www.hydrol-earth-syst-sci.net/12/703/2008/hess-12-703-2008.pdf 703 714 2008-05-06 Probability distribution of flood flows in Tunisia H. Abida habib.abida@voila.fr M. Ellouze Department of Earth Sciences, Faculty of Science, Sfax, BP 802, 3018 Tunisia L (Linear) moments are used in identifying regional flood frequency distributions for different zones Tunisia wide. 1134 site-years of annual maximum stream flow data from a total of 42 stations with an average record length of 27 years are considered. The country is divided into two homogeneous regions (northern and central/southern Tunisia) using a heterogeneity measure, based on the spread of the sample L-moments among the sites in a given region. 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