Flood Risk Forecasting and Early Warning Technology for Medium and Small Rivers in the Yellow River Basin Induced by Heavy Rain

The Yellow River Basin is one of the important sand-producing and sediment-transporting areas in China, three most world. amount sand dust days “Three Norths” (Dongbei, Xibei, Huabei) area has increased, regional storms have occurred frequently. There are generally more serious hidden danger points debris flow geological disasters small medium-sized river basins. technical achievements flood risk forecasting early warning for medium rivers based on rainstorm-induced floods supports rivers. Based this, a case study was carried out problems such as weak ability induced by heavy rain low accuracy disaster loss assessment rivers, reference relevant personnel.