Typhoon key parameter extraction method based on half-normal model

Abstract

The invention discloses a typhoon key parameter extraction method based on a half-normal model. The method includes the steps that typhoon historical data are input to a computer, any point in map data corresponding to an area where typhoons occur frequently is selected by the computer to serve as a simulation point, a simulation circle is made, and therefore typhoon key parameters passing through the simulation circle can be obtained; half-normal model characteristic parameters are calculated to obtain half-normal model characteristic parameters of typhoon key parameters of A1 and half-normal model characteristic parameters of typhoon key parameters of AR. The method has the advantages that the typhoon key parameters can be extracted accurately, reliable foundations are laid for further study of influences of typhoon intensity, typhoon tracks and typhoons on life of people, and reliable data foundations are provided for utilization of wind energy of the typhoons.

Description

technical field [0001] The present invention relates to the technical field of typhoon research, in particular to a key parameter of typhoon that can be accurately extracted, which lays a reliable foundation for further research on typhoon intensity, typhoon path and impact of typhoon on people's lives. method of extraction. Background technique [0002] The key parameters of a typhoon directly determine the intensity of the typhoon, the path of the typhoon, and the impact of the typhoon on people's lives. The key parameters of a typhoon include central air pressure difference, moving speed, moving direction, etc. Usually, according to the frequency distribution diagram of the parameters, a certain probability distribution function (such as normal distribution, lognormal distribution, Weibull distribution, etc.) is used to simulate, and then use χ 2 The fitting test method and the K-S fitting test method are used to carry out the fitting test, and finally the probability m...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency of poor accuracy of key parameters that cannot be extracted by the methods in the prior art, and provide a key parameter that can accurately extract typhoons, so as to further study the typhoon intensity, typhoon path and typhoon’s impact on people’s lives The method of extracting key parameters of typhoon based on half-normal model has laid a reliable foundation

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