Hidrológiai Közlöny, 2017 (97. évfolyam)

2017 / 3. szám - MANAGING ENVIRONMENTAL RISKS - FLOOD PROTECTION EXPERIENCES AND COOPERATION IN THE DANUBE RIVER BASIN - Engi Zsuzsanna: Flood hazard modelling of the River Mura based on the silting up processes of the inundation area

Zsuzsanna Engi: Flood hazard modelling of the River Mura based on the silting up processes of the inundation area

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Using morphometric parameters, the long-term development of the river and the meanders were analysed. On the downstream section of the River Mura, no complete analysis of morphometric parameters has been carried out before. We carried out such a study, which also constitutes an annex to the dissertation (Engi 2016). Using the values, the meander movements and cut-offs are also forecasted. The long-term development of a special omega-meander is shown.

Flood maps from 2D hydraulic modelling and old historic maps were compared and evaluated. It was concluded that the River Mura uses the old river paths for the conveyance of discharge in the inundation area during flooding.

In the dissertation, the method for the calibration and verification processes for 2D hydraulic modelling were shown (Engi 2016, Engi et al., 2016a and 2016b). From the silting up process of the inundation areas, we draw conclusion about the development of the hydraulic status of the area. On the basis of the results, adequate interventions could be suggested for the decreasing of flood hazard in the inundation area.

By synthesising the research methods, we tried to evaluate what future effects on the flood hazard could be caused by changes in water level or discharge due to climate change.

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