20.500.12556/RUL-131866 Impact of the rainfall duration and temporal rainfall distribution defined using the Huff curves on the hydraulic flood modelling results In the case of ungauged catchments, different procedures can be used to derive the design hydrograph and design peak discharge, which are crucial input data for the design of different hydrotechnical engineering structures, or the production of flood hazard maps. One of the possible approaches involves using a hydrological model where one can calculate the design hydrograph through the design of a rainfall event. This study investigates the impact of the design rainfall on the combined one-dimensional/two-dimensional (1D/2D) hydraulic modelling results. The Glinščica Stream catchment located in Slovenia (central Europe) is used as a case study. Ten different design rainfall events were compared for 10 and 100-year return periods, where we used Huff curves for the design rainfall event definition. The results indicate that the selection of the design rainfall event should be regarded as an important step, since the hydraulic modelling results for different scenarios differ significantly. In the presented experimental case study, the maximum flooded area extent was twice as large as the minimum one, and the maximum water velocity over flooded areas was more than 10 times larger than the minimum one. This can lead to the production of very different flood hazard maps, and consequently planning very different flood protection schemes. design storm hydraulic modelling flood hazards Glinščica catchment hydrological modelling Huff curves HEC-RAS projektni padavinski dogodek hidravlično modeliranje poplavna ogroženost porečje Glinščice hidrološko modeliranje Huffove krivulje HEC-RAS true false true Angleški jezik Slovenski jezik Članek v reviji 2021-10-05 09:36:58 2021-10-05 09:37:00 2022-09-10 04:14:16 0000-00-00 00:00:00 2018 0 0 15 str. iss. 2, art. 69 Vol. 8 Feb. 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 556.12(045) 2076-3263 10.3390/geosciences8020069 8314209 RAZ_Bezak_Nejc_2018.pdf RAZ_Bezak_Nejc_2018.pdf 1 CBF04EB6630CEFD1E49B048BDD6F0986 c36d6cba5f71f8dc0722fd194abdc85f4d38931bbcb1e5d8c6551654596a9bcd 41882277-25af-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149295 http://www.mdpi.com/2076-3263/8/2/69 1 bc474a4c-25ae-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149292 Fakulteta za gradbeništvo in geodezijo 0 0 0