Design of various alternatives for the wetland revitalization
2014
Ondrejka Harbulakova, V., Technical University of Kosice (Slovak Republic). Institute of Environmental Engineering | Hudakova, A., Technical University of Kosice (Slovak Republic). Institute of Environmental Engineering
Floods are among the most frequent and costly natural disasters. Conditions that cause floods include heavy or steady rain for several hours or days that saturate the ground. Flash floods occur suddenly due to rapidly rising water along a stream or low-lying area. Currently, the use of mathematical, hydrology, hydraulic models and geographic information systems in flood risk management give the current level of total tool for the evaluation of the flood risk zones. The aim of the deployment of these resources is especially accelerate the treatment process of risk analysis floodplains, minimizing the need to bring local investigation, creation of flood hazard and risk maps. The HEC-RAS system contains four one-dimensional river analysis components for: steady flow water surface profile computations; unsteady flow simulation; movable boundary sediment transport computations; and water quality analysis. Output from software HEC-RAS is input for flood map creation. Selected river basin was part of Latorica river (flows at eastern part of Slovakia) and calculation were done for various return period of water flow.
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