floods flood control 32 water courses 15 hydrology 12 protective measures 11 inundation 10 history 8 more ... water flow rate 7 dams 7 drought 7 water courses regulation 7 hydrology of rivers 6 towns 6 river basin 6 water structures 6 atmospheric precipitation 5 simulation and modelling 5 water management 5 ecology 4 geography 4 hydrological forecasts 4 climatic changes 4 protection 4 protection of buildings 4 rainfall-runoff relations 4 water reservoirs 4 hydrogeography 3 hydrometeorologic forecasting 3 hydrometeorology 3 landscape protection 3 less ...