Hydrological forecasting method

Abstract

The invention discloses a hydrological forecasting method. The hydrological forecasting method comprises the following steps: collecting a rainfall sample data set of a rainfall station correspondingto a water drainage basin within a certain period of time; analyzing the rainfall sample data set, and supplementing and perfecting missing items in the rainfall sample data set; carrying out featureselection on the rainfall sample data set, and selecting the sum of rainfall accumulated every 4 hours within 12 hours as a new data item; s3, further performing comparative analysis on the rainfall sample data set subjected to feature selection in the step S3 and an actual environment; carrying out iterative selection of forward search on the rainfall sample data set subjected to comparative analysis in the step S4 so as to obtain rainfall after 4 hours, 8 hours and 12 hours; and acquiring water level values after 4 hours, 8 hours and 12 hours by a worker based on the step S5. The method hasthe advantages and effects that the hydrological prediction result is optimized, and the hydrological accuracy and timeliness are more considerable.

Description

technical field [0001] The invention relates to the field of hydrology, in particular to a hydrological forecasting method. Background technique [0002] Hydrological forecasting makes scientific predictions of future hydrological conditions (such as flood peak flow), especially accurate forecasts of disastrous hydrological phenomena, so as to realize flood control and disaster reduction and rational development and utilization of water resources. Improving the accuracy of hydrological forecasting is an important part of hydrological forecasting work, which plays a vital role in flood control and disaster reduction, protection of people's lives and property, and full use of water conservancy projects to improve the ecological environment. [0003] The hydrological forecast in the existing technology is not accurate enough and timely, and often needs to rely on the analysis and processing experience of the hydrological administrator, which is easy to cause the error to increa...

AI Technical Summary

Problems solved by technology

[0003] The hydrological forecast in the existing technology is not accurate enough and timely, and often needs to rely on the analysis and processing experience of the hydrological administrator, which is easy to cause the error to increase step by step, thus causing a large deviation, and it is difficult to achieve an accurate, fast and efficient early warning effect

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