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A method for estimating flash flood peak discharge in a poorly gauged basin: Case study for the 13–14 January 1994 flood, Giofiros basin, Crete, Greece

Tsanis Giannis, Koutroulis, Aris

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URIhttp://purl.tuc.gr/dl/dias/86117CDA-95CF-43F9-84C4-BE3DFF012948-
Identifierhttps://doi.org/doi:10.1016/j.jhydrol.2010.02.012-
Languageen-
Extent15 pagesen
TitleA method for estimating flash flood peak discharge in a poorly gauged basin: Case study for the 13–14 January 1994 flood, Giofiros basin, Crete, Greeceen
CreatorTsanis Giannisen
CreatorΤσανης Γιαννηςel
CreatorKoutroulis, Arisen
Content SummaryA method for estimating flash flood peak discharge, hydrograph, and volume in poorly gauged basins, where the hydrological characteristics of the flood are partially known, due to stage gauge failure, is presented. An empirical index is used to generate missing hourly rainfall data and hydrologic and hydraulic models performs the basin delineation, flood simulation, and flood inundation. The peak discharge, hydrograph, and volume, derived from the analysis of measured hydrographs in a number of non-flood causing rainfall events with operating stage gauge, were used for calibration and verification of the simulated stage-discharge hydrographs. An empirical equation was developed in order to provide the peak discharge as a function of the total precipitation, its standard deviation, and storm duration. The peak discharge for a flash flood case based on the empirical equation was in close agreement with the results from a number of consolidated methods. These methods involved hydrological and hydraulic modeling and peak flow estimates based on Manning’s equation and post flash flood measurements of the maximum water level observed at the control cross-section, for the 13–14 January 1994 flash flood in the Giofiros basin on the island of Crete, Greece. This method can be applied to other poorly gauged basins for floods with a stage higher than that defined by the rating curve.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-10-09-
Date of Publication2010-
Bibliographic CitationA. g. Koutroulis, I. K. Tsanis, “A method for estimating flash flood peak discharge in a poorly gauged basin: Case study for the 13-14 January 1994 flood, Giofyros basin, Crete," J. of Hydrol., vol. 385,no. 1-4 , pp.150-164, 2010.doi:10.1016/j.jhydrol.2010.02.012en

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