Floods identification method for different drainage basins

Abstract

The invention discloses a floods identification method for different drainage basins. The method comprises the following steps: collecting flow sequence data and preprocessing the flow sequence data; initializing the preprocessed data to generate a mean value and a variance; performing high and low point extraction on the initialized data; updating an and sigma n based on the current traffic sequence data; performing staggered verification on the obtained 'high' point and 'low' point sequence, if at least one 'high' point is contained between every two adjacent 'low' points, generating a wave crest, otherwise, abandoning the 'low' point; finally discriminating the generated wave crest sequence, and determining the rising point and the water recession point of the flood in the session according to the wave crest; the problems that in the prior art, during session flood recognition, auxiliary intervention of more human experience knowledge is needed for peak extraction, or the working mechanism of the method excessively depends on preset fixed parameters, the effectiveness is poor, and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of flood forecasting, and in particular relates to a flood identification method for different river basins. Background technique [0002] Traffic series is essentially a time series of information data. In recent years, with the development of big data and artificial intelligence, the analysis of time series and the extraction of important information have also been further developed; time series traffic analysis It has also been gradually applied in hydrology, through the analysis of time series flow combined with the law of floods in the same period of history to conduct research on flood identification. [0003] When calculating the flood frequency, the flood process is artificially split; generally, the flood corresponding to the maximum peak flow is used as the flood process; the results of the flood frequency provide the basis for the establishment of flood control projects, and the definition of the ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a flood identification method for different watersheds, so as to solve the problem that in the prior art, the wave peak extraction needs more artificial experience and knowledge for auxiliary intervention, or the working mechanism of the method is overly dependent on Based on the preset fixed parameters; leading to technical problems such as poor effectiveness

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