The theme of this thesis is a basin of torrent Mačkov graben which is located in nortwestern part of Gradaščica River basin and is one of the experimental cathments of the Chair of hydrology and hydraulic engineering at UL FGG. With a goal to develop hydrologic model of Mačkov graben two different programs are used: Flo-2D and HEC-HMS. In the first part the development and functioning of both models is presented. It is followed by presentation about measuring water flows in natural torrents with emphasis on dilution method and Flo-tracer instrument.
The main part of results includes hydrological modeling using both programs. For the model in Flo-2D is important to correctly determine topography, rain data, loss method and control parameters. The model in HEC-HMS demands the basin, meteorological and control model. In the next step comparison of modeled hydrographs with measured ones was conducted for selected rainfall events.
At the end models were evaluated using Nash-Sutcliffe coefficient. The model in HEC-HMS demonstrates higher values of Nash-Sutcliffe coefficient than model in Flo-2D.