本文利用2016~2017年6~8月南京各站大气电场仪资料，并结合雷达以及闪电定位资料得出南京市夏季雷暴过程大气电场变化特征，并在此基础上确定了南京本地大气电场仪预警时刻各项预警参数值以期尝试研究大气电场资料在雷电预报预警中的应用前景。根据首次地闪的发生时刻对南京各站雷暴过程进行细划研究，分析得出各个预警阶段大气电场变化与各预警范围内发生的闪电之间的关系。进而发现南京本站以及高淳站大气电场仪预警准确率总体上在10~15 km范围效果较好，其余各站基本上预警准确率随着预警半径范围的缩小，预警准确率也是增加的；南京各测站临界成功指数在10~15 km范围内的探测效率较好。
This paper obtains the characteristics of atmospheric electric field changes in summer thunderstorm process in Nanjing by using the data of atmospheric electric field instruments from June to August in 2016 and 2017 and the data of radar and lightning location. On this basis, the early warning parameter values of Nanjing local atmospheric electric field instruments at the early warning time were determined to try to study the application prospect of atmospheric electric field data in lightning forecast and early warning. We obtained the relationship between the changes in the atmospheric electric field at each early warning stage and the occurrence of lightning at the same time by a detailed study of the thunderstorm process in Nanjing stations according to the occurrence time of the first ground flash. We found that the early warning accuracy of the atmospheric electric field instrument at Nanjing Station and Gaochun Station is better in the range of 10~15 km. The accuracy of early warning in other stations is increased with the reduction of the radius of early warning. The critical success index of each station in Nanjing is better in the range of 10 km to 15 km.
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