Due to the complexity of lightning formation and development process, the lightning proximity warning based on single data is difficult to meet the requirements in terms of prediction accuracy. In this paper, we conduct a lightning activity warning study based on lightning localization data and meteorological data. The combination of ERA5 dataset and lightning localization dataset is used as the model training and testing data, and the format unification of 1 km spatial resolution and 10 min temporal resolution is achieved with the help of cubic spline interpolation. On this basis, this paper compares the good and bad prediction performance of decision tree, support vector machine and bp neural network models for the target dataset, respectively, in which the support vector machine model performs better in terms of probability of detection (POD), while the bp neural network performs better in terms of false alarm rate (FAR).

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Early Warning of Lightning Activity Based on Lightning Location Data and Meteorological Data

  • Chaoying Fang,
  • Jun Xu,
  • Yeqiang Deng,
  • Yu Wang,
  • Haochen Zhang,
  • Yuzhe Chen

摘要

Due to the complexity of lightning formation and development process, the lightning proximity warning based on single data is difficult to meet the requirements in terms of prediction accuracy. In this paper, we conduct a lightning activity warning study based on lightning localization data and meteorological data. The combination of ERA5 dataset and lightning localization dataset is used as the model training and testing data, and the format unification of 1 km spatial resolution and 10 min temporal resolution is achieved with the help of cubic spline interpolation. On this basis, this paper compares the good and bad prediction performance of decision tree, support vector machine and bp neural network models for the target dataset, respectively, in which the support vector machine model performs better in terms of probability of detection (POD), while the bp neural network performs better in terms of false alarm rate (FAR).