Considering characteristics of high river density, special underlying surface in plain river network region, and municipal drainage system function, river network drainage unit model is proposed, which is defined as a region surrounded by main river or embankment. Flood storage variety and control projects regulation of small rivers in each unit is simulated. With drainage catchment as an objec...

check dams, are small dams in the watershed. these dams are constructed in susceptible areas to erosion due to reduce of flow velocity and erosion, control of sediment and flood in upstream of reservoir dams. these structures are made using wood, stone and cement, and gabion. these structures change the hydrological response of the watershed by reducing flow velocity, the channel slope and stor...

In order to prevent flooding along the Demer in Belgium, the local water administrations has installed hyraulic structures and flood reservoirs along the river. Though these actions have reduced the damage and frequency of flooding events, simulations have shown that an improved regulation could further decrease the flood risk. In this study a real time control procedure is being developed by m...

Flood water in Lake Manapouri is released according to strictly formulated flood rules. B e Realtime Flood Assistant is an expert system which incorporates Lake Manapouri flood rules and the txperience of the control room operators at Transpower NZ Ltd. to assist them in the release of flood water. The expert system is being developed in Level5 Object. The program is mainly an event-driven syst...

There has been an increase in the occurrence of sudden local flooding of great volume and short duration caused by heavy or excessive rainfall intensity over a small area, which presents the greatest potential danger threat to the natural environment, human life, public health and property, etc. Such flash floods have rapid runoff and debris flow that rises quickly with little or no advance war...