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The use of lightning data and Meteosat infrared imagery for the nowcasting of lightning activity

机译:利用闪电数据和Meteosat红外图像进行闪电活动的临近预报

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摘要

The development and efficiency assessment of a lightning activity nowcasting tool is presented. The tool employs MSG IR imagery and real-time lightning data provided by ZEUS network to nowcast the manifestation of lightning activity over the Greek mainland for a time span of 1 h. The efficiency of the tool is assessed for 20 days with widespread lightning activity observed during the warm period of the year through a verification procedure that computes a collection of appropriate statistics for selected areas. The analysis of these statistics shows that the tool estimates successfully almost 80% of the upcoming activity. The false alarm rate is close to 40%, while a small overestimation is evident. Since the adverse effects of a case of missed activity are much more than that of a false alarm, the tool is considered successful and fit for operational use. (C) 2015 Elsevier B.V. All rights reserved.
机译:介绍了闪电活动临近预报工具的开发和效率评估。该工具利用ZEUS网络提供的MSG红外图像和实时雷电数据,在1小时的时间跨度内预报了希腊大陆上闪电活动的表现。通过验证程序计算该工具的效率,该工具的效率为20天,并在一年中的暖季期间观察到广泛的闪电活动,该验证程序将计算选定区域的适当统计信息。对这些统计数据的分析表明,该工具成功估计了即将进行的活动的近80%。误报率接近40%,而明显的高估是显而易见的。由于缺少活动的情况所带来的不利影响远大于错误警报所带来的不利影响,因此该工具被认为是成功的并且适合于操作使用。 (C)2015 Elsevier B.V.保留所有权利。

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