Flood hazard mapping in Zhejiang province started in 1989. Method used for flood risk analysis is mainly historical flood-hydrology, according to the character of flood and basic data in Zhejiang province. Two-dimensional emulation model of hydraulics was used in dam breach risk analysis. Flood loss assessment system was developed on the basis of flood hazard mapping, which played a key role in protecting typhoon and flood and also provided a scientific base for making decision.
China Water Resources