Precipitation forecasting and support vector machine coupled real-time river flood peak water level forecasting method

Abstract

The invention discloses a precipitation forecasting and support vector machine coupled real-time river flood peak water level forecasting method. According to the method, quantitative precipitation forecasting data is taken as influence factors and a support vector machine is used for forecasting future flood peak water levels of rivers. According to the method, quantitative precipitation forecasting is used for forecasting flood peaks, so that the forecasting periods can be brought ahead greatly, future flood peak water levels are predicted in real time via current precipitation forecasting information, and prediction results can be corrected in time according to weather changes, so that the precision and reliability of flood peak forecasting are improved continuously. According to the method, relationships between factors such as precipitation, risen water levels and the like and flood peak water levels are established on the basis of the support vector machine; and compared with river flood algorithms, the method has the advantages that the whole analysis process is rapid and convenient and the method is easy to be grasped and used by users.

Description

technical field [0001] The invention belongs to the technical field of measurement and control, in particular to a real-time forecasting method for flood peak water level of a river channel coupled with quantitative precipitation forecasting and support vector machine. Background technique [0002] Predict the possibility of flood disasters in advance, formulate various flood control measures in a timely manner, carry out reasonable reservoir scheduling upstream, appropriately reinforce and heighten embankments downstream, and divert floods in a timely manner when necessary to minimize the risk of flooding. The losses caused by flood disasters are of great significance. Flood control decision-making needs to know the flood peak water level information in order to best carry out effective flood control scheduling and arrange emergency flood control measures in advance to reduce flood losses. Therefore, it is very necessary to seek a simple, practical, high-precision, reliabl...

AI Technical Summary

Problems solved by technology

This kind of method is affected by the accuracy of the river channel model and the change of the river channel, which will have a huge impact on the forecast results. The forecast process is complex and difficult to be grasped by ordinary application personnel. The forecast cost is high and the forecast period is short.

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