| DDW1闪电定位系统及性能评估 |
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| 引用本文： | 李庆申,陈宇涵,张阳,赖晋科,刘银锋,庞文静.DDW1闪电定位系统及性能评估[J].气象科技,2020,48(6):788-794. |
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| 作者姓名： | 李庆申 陈宇涵 张阳 赖晋科 刘银锋 庞文静 |
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| 作者单位： | 北京华云东方探测技术有限公司,北京 100081;北京工业大学,北京 100124;中国气象科学研究院灾害天气国家重点实验室,北京 100081;中国气象局气象探测中心,北京 100081 |
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| 摘 要： | 北京华云东方探测技术有限公司于2016—2018年在广东组网建设了DDW1闪电定位系统, 对一次雷暴过程的观测表明，DDW1定位数据与雷达回波强回波区之间在空间分布上具有较好的一致性。进一步利用2018年中国气象科学研究院在广州从化地区获得的触发闪电试验数据和全闪定位数据对DDW1闪电定位系统性能进行了评估，验证了其探测效率、定位精度等指标。结果表明：对于6次包含有回击过程的人工触发闪电事件，DDW1闪电定位系统全部探测到，地闪探测效率为100%；对于这6次触发闪电中的所包含的27次回击过程，该闪电定位系统共探测到17次，回击探测效率约为63%，对这些回击过程的平均定位误差约为464 m，电流反演误差为1149%；对比高精度全闪探测数据，DDW1的全闪探测效率为50%。
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| 关 键 词： | DDW1闪电定位系统 性能评估 人工引雷 回击 探测效率 定位误差 |
| 收稿时间： | 2019/12/10 0:00:00 |
| 修稿时间： | 2020/6/10 0:00:00 |
DDW1 Lightning Location System and Performance Evaluation |
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| LI Qingshen,CHEN Yuhan,ZHANG Yang,LAI Jinke,LIU Yinfeng,PANG Wenjing.DDW1 Lightning Location System and Performance Evaluation[J].Meteorological Science and Technology,2020,48(6):788-794. |
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| Authors: | LI Qingshen CHEN Yuhan ZHANG Yang LAI Jinke LIU Yinfeng PANG Wenjing |
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| Abstract: | The Beijing Huayun Oriental Detection Technology Co., Ltd. established the DDW1 Lightning Location System in Guangdong Province from 2016 to 2018. The observation of a thunderstorm process by the DDW1 Lightning Location System shows that the spatial distribution of DDW1 location data is in good agreement with the strong echo areas of radar echoes. In this paper, the performance of the DDW1 lightning location system is analyzed by means of the data from the lightning triggering experiment and the full flash location data obtained by the Chinese Academy of Meteorological Sciences in Conghua of Guangzhou in 2018, and the detection efficiency and location accuracy of full flashes are verified. The results show that the detection efficiency of the DDW1 lightning location system is 100% for all the six triggered lightning events, and 17 times for the 27 triggered lightning events; the detection efficiency of the DDW1 lightning location system is about 63%. The average positioning error of these return stroke processes is about 464 m; the current inversion error is 11.49%; and the total flash detection efficiency is 50% compared with the high precision full flash detection network LFEDA. |
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| Keywords: | DDW1 lightning location system performance evaluation artificially initiated lightning return stroke detection efficiency positioning error |
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