Real-time flood risk quantitative assessment method

The invention discloses a real-time flood risk quantitative evaluation method, which comprises the following steps of: establishing a relationship among flood frequency (P), corresponding loss (L) and flood control risk rate (Pf), establishing a flood risk control standard diagram, and further quantitatively evaluating the risk degree of real-time flood, namely judging whether the real-time flood belongs to an acceptable risk area, a tolerable risk area or an unacceptable risk area. According to the solution for quantitatively evaluating the real-time flood risk provided by the invention, the defect that the risk control standard of real-time flood risk evaluation in the current hydrological field only considers the flood control risk rate or the flood occurrence frequency and does not consider the flood loss is overcome, the flood control risk rate and the flood loss are combined, and the real-time flood risk evaluation accuracy is improved. Therefore, the risk control standard can adapt to different flood c