ABSTRACT. Flood waves and induced risks. The main criterion of analysis of the flood waves is the demarcation, which can be achieved using many methods. The type, the form and the goal of analysis are taken into account for identification of the flood. Then, parameters of the flood hydrograph can be specified, those parameters characterizing the laws of maximum water flow in given section of the river. The parameters estimation implies a careful analysis of flood demarcation method. The flood’s parameters are used for hydrologic analysis, for defense against flooding, for water management and for forecasting activity. All activities require the risk analysis induce on floods.
Key-words: flood, demarcation, parameters, risk, probability, damage