Flash flood forecasting by coupling radar-based precipitation and distributed hydrological model

摘要

@@ 1. Introduction Flooding is one of the most serious natural disasters in China, and has caused huge losses year by year. The devas tating flood s was not only obser ved in large river basins, but also in the newly developed urban area, particularly in the south and southeast coastal area where the fastes t economic development has been observed in the past decades, and also frequently heavy rain caused by tropical storms. Flood forecasting has played key role in flood management, particularly for saving lives, so to advance the flood forecasti ng techniq ues and improve the flood forecasting accuracy has long been the goal of hydrol ogical communities. This paper presented some research results in coupling physi cally bas ed distributed hydrological model with radar estimated precipit ation, for flash floods both in river basins and coastal urban areas. The method is called by the author as new generation flood forecasting method.