Extended Abstract

gauges. Fig. 1 shows the event accumulated precipitation for flood event no. 2 and no.5. From Fig. 1, it can be s een that the spatial precipitation distribution over the wholebasin is rather uneven.(a) Flood Event No. 2 (b) Flood Event No. 5Fig. 1 Event-accumulated precipitation estimated from Guangzhou CINRADThe Liuxihe Model was set up in the studied basin at a spatial resolution of 100m gridcell, the DEM was surveyed locally at the spatial resolution of 100m, while the soiltype and land cover type data are downloaded from the public domains. The modelparameters are determined based on the observed flood events with rain gaugesprecipitation. Then floods were simulat ed with both radar and rain gauges estimatedprecipitation, Fig. 2 is the simulated results.(a)Simulation result of flood event No. 2 (b) Simulation result of flood event No. 5Fig. 2 Liuxihe Reservoir Basin flood simulation resultsFrom the results of Fi g. 2, it can be seen that the resu lts simulated with rain gaugesprecipitation and radar estima ted precipitation are com parable, and fit the observedflood processes reasonably good.5. Urban area flash flood simulationDongguan City is the one of the fastest developing city in southern China, which is-391-