Articles | Volume 44
Adv. Geosci., 44, 15–22, 2017
Adv. Geosci., 44, 15–22, 2017
24 Feb 2017
24 Feb 2017

Combining regional rainfall frequency analysis and rainfall-runoff modelling to derive frequency distributions of peak flows in ungauged basins: a proposal for Sicily region (Italy)

Brunella Bonaccorso et al.

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Cited articles

Aronica, G. T. and Candela, A.: Derivation of flood frequency curves in poorly gauged Mediterranean catchments using a simple stochastic hydrological rainfall-runoff model, J. Hydrol., 347, 132–142, 2007.
Bonaccorso, B. and Aronica, G. T.: Estimating temporal changes in extreme rainfall in Sicily Region, Water Resour. Manag., 30, 5651–5670,, 2016.
Bonta, J. V.: Stochastic simulation of storm occurrence, depth, duration, and within–storm intensities, Trans. Am. Soc. Agr. Eng., 47, 1573–1584, 2004.
Bronstert, A. and Bárdossy, A.: The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale, Hydrol. Earth Syst. Sci., 3, 505–516,, 1999.
Candela, A., Brigandì, G., and Aronica, G. T.: Estimation of synthetic flood design hydrographs using a distributed rainfall-runoff model coupled with a copula-based single storm rainfall generator, Nat. Hazards Earth Syst. Sci., 14, 1819–1833,, 2014.
Short summary
A Monte Carlo approach for deriving flood frequency curves in ungauged basins in Sicily region (Italy) is proposed. The procedure consists of: (i) a regional frequency analysis of extreme rainfall series, combined with Huff curves-based synthetic hyetographs, for design storms and (ii) a rainfall-runoff model, based on the Time-Area technique, to generate synthetic hydrographs. Validation of the procedure is carried out on four gauged river basins in Sicily (Italy) with promising results.