20.500.12556/RUL-181052 Uporaba modela HEC-RAS po metodi mrežnih padavin za določitev poplavne nevarnosti magistrsko delo Use of the HEC-RAS model with the rain-on-grid method for flood hazard assessment master thesis V okviru magistrske naloge je obravnavana tematika hidrološko-hidravličnega modeliranja po metodi mrežnih padavin v programskem okolju HEC-RAS. Predstavljeni je tradicionalni in trenutni pristop k hidrološkemu modeliranju, postopek priprave modela po metodi mrežnih padavin in razlike v primerjavi s tradicionalnim pristopom, ki predvideva ločen hidrološki in hidravlični model. Modeliranje po metodi mrežnih padavin je v nalogi testirano na porečju Velunje, za katero je bila leta 2015 izvedena referenčna hidrološka študija. Za omenjeno porečje smo izdelali polni 2D hidrološkohidravlični model in z njim simulirali izbrane padavinske dogodke ter rezultate primerjali z referenčno študijo in meritvami na vodomerni postaji. Izvedli smo analizo občutljivosti izdelanega modela na nekaj glavnih modelnih parametrov. Dodatno smo simulirali padavinski dogodek »avgust 2023« z uporabo terestičnih in radarskih meritev padavin. V zaključku smo ovrednotili uporabnost metode in izpostavili prednosti ter slabosti. Podali smo tudi smernice za modeliranje s to metodo. The master’s thesis addresses the topic of hydrological–hydraulic modelling using the rain-on-grid method within the HEC-RAS software environment. The traditional and current approaches to hydrological modelling are presented, followed by the description of the model setup using the rain-ongrid method and a discussion of the differences compared to the traditional approach, which employs separate hydrological and hydraulic models. The rain-on-grid modelling approach was analyzed for the Velunja River catchment, for which a reference hydrological study was conducted in 2015. For this catchment, a fully 2D hydraulic model was developed, and selected rainfall events were simulated. The results were compared with those of the reference study and with measurements from the gauging station. A sensitivity analysis of several key model parameters was also performed. In addition, the August 2023 rainfall event was simulated using terrestrial and radar-based precipitation data. In conclusion, the applicability of the method was evaluated, highlighting its advantages and limitations. Several guidelines for modelling using this approach were proposed. magistrska dela metoda mrežnih padavin hidrološki model hidravlični model padavinske izgube radarske meritve padavin umerjanje modela master thesis rain-on-grid method hydrological model hydraulic model rainfall losses radar rainfall measurements model calibration true false false [J. Blatnik] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-03-24 08:45:16 2026-03-24 08:45:25 2026-03-25 09:29:54 0000-00-00 00:00:00 2026 0 Ljubljana 2026 Ljubljana 1 spletni vir (1 datoteka PDF (XI, 57 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 627.133:627.51(043.2) 179147 272939523 20869.pdf 20869.pdf 1 7D4CB159D6AB20478FB0ADCEA129A4E7 476666d75a5f26fe1c442e9e1fa984f7814e1927d63081f871d0ac2774a7dbe3 52a0be15-2755-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=231152 Fakulteta za gradbeništvo in geodezijo 0 0 0