System Development & Application
|
2125-2129

Application of dynamic probability convolutional neural network in radar echo extrapolation

Wu Zhuosheng1
Zhang Wei1
Lin Yan2
Teng Shaohua1
1. College of Computer Science, Guangdong University of Technology, Guangzhou 510000, China
2. Guangdong Putian Lightning Installations Inspection Co. , Ltd. , Guangzhou 510000, China

Abstract

Radar echo extrapolation has been widely used in short-term heavy precipitation nowcasting. Aiming at the problem that traditional radar echo extrapolation methods do not make full use of massive historical meteorological data, which leads to low forecast accuracy, this paper proposed a new radar echo extrapolation method based on DPCNN. With the addition of dynamic probability calculation layer, DPCNN was able to calculate the corresponding probability convolution kernel for different radar echo input sequences and used it in the subsequent extrapolation calculations. Dynamic probability calculation layer enabled the network to make corresponding probability adjustments according to different input sequences in the prediction stage and enhance the connection between extrapolation and input sequences. The extrapolation experiment of short-term heavy precipitation in a certain area verifies the validity of the model from four aspects: extrapolated image, CSI, FAR, and POD.

Foundation Support

国家自然科学基金资助项目(61972102)
广东省重点领域研发计划项目(2020B010166006)
广东省教育厅资助项目(粤教高函〔2018〕179号
粤教高函〔2018〕1号)
广州市科技计划项目(201903010107,201802030011,201802010026,201802010042,201604046017)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.11.0404
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 7
Section: System Development & Application
Pages: 2125-2129
Serial Number: 1001-3695(2021)07-038-2125-05

Publish History

[2021-07-05] Printed Article

Cite This Article

吴卓升, 张巍, 林艳, 等. 动态概率卷积神经网络在雷达回波外推中的应用 [J]. 计算机应用研究, 2021, 38 (7): 2125-2129. (Wu Zhuosheng, Zhang Wei, Lin Yan, et al. Application of dynamic probability convolutional neural network in radar echo extrapolation [J]. Application Research of Computers, 2021, 38 (7): 2125-2129. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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