The analysis of runoff thresholds and, more in general, the identiﬁcation of main mechanisms of runoff generation controlling the ﬂood frequency distribution is investigated, by means of theoretically derived ﬂood frequency distributions, in the framework of regional analysis. Two nested theoretically-derived distributions are ﬁtted to annual maximum ﬂood series recorded in several basins of Southern Italy. Results are exploited in order to investigate heterogeneities and homogeneities and to obtain useful information for improving the available methods for regional analysis of ﬂood frequency.
How to cite: Fiorentino, M., A. Gioia, V. Iacobellis, and S. Manfreda, Regional analysis of runoff thresholds behaviour in Southern Italy based on theoretically derived distributions, Advances in Geosciences, 26, 139-144, (doi:10.5194/adgeo-26-139-2011), 2011. [pdf]