| 基于多源监测数据的雷电预警方法 |
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| 引用本文： | 赵伟,陆韬,张祎,李颖,周象贤.基于多源监测数据的雷电预警方法[J].气象科技,2020,48(3):438-442. |
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| 作者姓名： | 赵伟 陆韬 张祎 李颖 周象贤 |
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| 作者单位： | 浙江省气象科学研究所,杭州310008;浙江省东阳市气象局,东阳322100;浙江省气象安全技术中心,杭州310008;国网浙江省电力有限公司电力科学研究院,杭州310023 |
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| 基金项目： | 浙江省气象科技项目（2017YB08）、公益性行业（气象）科研专项 (GYHY20110635)、国网浙江省电力有限公司科技项目（5211DS18002P）资助 |
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| 摘 要： | 以浙江省气象台已经业务运行多年的基于雷达数据的雷电预警产品(预警时效为60min,分辨率为1km×1km,4个预警等级)为基础,融合闪电定位系统数据和大气电场数据,提出一种基于多源监测数据的雷电预警方法。使用2018年的观测数据进行预警效果检验,结果表明:雷电预警的漏报率为31.89%,空报率为30.54%,临界成功指数为60.53%,比使用单一监测数据的雷电预警效果有所提高。由此可见,该雷电预警方法对浙江省雷电天气的预警具有参考价值和指示意义。
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| 关 键 词： | 闪电定位系统 大气电场 雷达 雷电预警 |
| 收稿时间： | 2019/6/26 0:00:00 |
| 修稿时间： | 2019/11/29 0:00:00 |
Method for Lightning Warning Based on Multi Source Observations |
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| ZHAO Wei,LU Tao,ZHANG Yi,LI Ying,ZHOU Xiangxian.Method for Lightning Warning Based on Multi Source Observations[J].Meteorological Science and Technology,2020,48(3):438-442. |
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| Authors: | ZHAO Wei LU Tao ZHANG Yi LI Ying ZHOU Xiangxian |
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| Institution: | (Zhejiang Institute of Meteorological Sciences,Hangzhou 310008;Dongyang Meteorological Service,Zhejiang,Dongyang 322100;Zhejiang Meteorological Safety Technology Center,Hangzhou 310008;Electric Power Research Institute,State Grid Zhejiang Electric Power Company,Hangzhou 310023) |
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| Abstract: | Based on the radar-based lightning warning products of Zhejiang meteorological Observatory-running for many years(60 min early warning,spatial resolution 1 km×1 km,four warning levels),considering the high false negative rate of Lightning Warning Products,a method of lightning warning is presented by blending lightning location data and atmospheric electric field data.The results from the new lightning warning method in 2018 are verified,with a POD(Percent of Doom)of 31.52%,FAR(False Alarm Rate)of 29.86%,and CSI(Critical Success Index)of 61.24%,which are better than those from the previous method based on single-factor observation.It can be obviously seen that this method has more significant indication and reference for Zhejiang lightning forecasting and warning. |
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| Keywords: | lightning location system atmospheric electric field radar lighntning warning |
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