NDLI: Study on short-range precipitation forecasting method based on genetic algorithm neural network

Content Provider	IEEE Xplore Digital Library
Author	Kaiping Lin Jianling Lin Binlian Chen
Copyright Year	2008
Description	Author affiliation: Short-range Forecast Office, Guangxi Meteorol. Obs., Nanning (Kaiping Lin; Jianling Lin)
Abstract	In order to establish the forecasting model of the genetic-neural network, the genetic algorithm was used to optimize the connection weight and structure of the neural network through application of retaining the best individual in the genetic evolution process. This method overcomes the randomicity of the initial weight value, and, avoids the network oscillation as well as its being trapped into the local solution in the determination of the NN structure. Taking Guangxi short-range precipitation forecast as the example, this paper conducts the processing of dimensions cut on the massive forecast factors selected from the T213 numerical weather forecast products and achieves the effect of the concentration of the effective information, and establishing the forecasting model of daily rainfall grades during May-June in Guangxi by combining Japanese fine-mesh numerical weather forecast (NWF) predictor. The result indicates that the accurate rate of 24 hours forecast for the average precipitation equal to or even greater than 10mm within Guangxi with this model is 0.57, 0.50, 0.30, which is 7-15% over the present routine operational T213 and Japanese numerical weather forecast products.
Starting Page	7883
Ending Page	7887
File Size	132678
Page Count	5
File Format	PDF
ISBN	9781424421138
DOI	10.1109/WCICA.2008.4594160
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Predictive models Artificial neural networks Gallium nitride Meteorology Genetic algorithms Training Weather forecasting Short-range precipitation Forecast Genetic Algorithm Artificial Neural Network Principal Component Analysis
Content Type	Text
Resource Type	Article

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