This work presents the spatial distribution and temporal variability of lightning activity over the continental territory of Chile by means of Thunderstorms days (Td), on the basis of 7 years (2012–2018) of lightning measurement from World Wide Lightning Location Network (WWLLN). Td are obtained separately for the 15 geopolitical regions of Chile, reporting the higher lightning activity in the northeastern region of the country with 85 thunderstorms days per year. These values are mainly located in the mountains between 2,000 and 5,000 m.a.s.l. where extensive mining activity is located and there are electrical facilities of great importance for Chile. The Td values obtained in this study update the information presented by the World Meteorological Organization (WMO) in 1953, so far the only one available for the entire Chilean territory. From the diurnal cycle analysis, there is a marked mono-modal behavior of lightning activity in the afternoon for latitudes between S and S (regions XV, I, and II) and a different behavior of lightning activity over the region between S and S (regions X, XI, and XII) known as Chilean Patagonia, due to special weather conditions in that area. Further more, the seasonal analysis showed that the highest lightning activity occurs in January and February and the lowest activity takes place between June and August. Once again, the Chilean Patagonia showed a different behavior because the highest activity is presented in May and August, and the lowest in September. The analysis and results presented here contribute to the knowledge of lightning activity in the region that has not been characterized before and can serve as a basis for future research to determine the behavior of this natural phenomenon.

中文翻译：

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智利领土上空的闪电活动

这项工作根据全球闪电定位网络 (WWLLN) 的 7 年（2012-2018 年）闪电测量结果，通过雷暴日 (Td) 展示了智利大陆上闪电活动的空间分布和时间变化. 智利 15 个地缘政治区域的 Td 分别获得，报告该国东北部地区的闪电活动较高，每年有 85 个雷暴日。这些值主要位于 2,000 到 5,000 masl 之间的山区，那里有广泛的采矿活动，并且有对智利非常重要的电力设施。本研究中获得的 Td 值更新了世界气象组织 (WMO) 在 1953 年提供的信息，这是迄今为止唯一适用于整个智利领土的信息。S 和S（XV、I 和 II 区）以及S 和S（X、XI 和 XII区）之间的区域（称为智利巴塔哥尼亚）上的不同闪电活动行为，原因是该地区的特殊天气条件。此外，季节性分析表明，最高的闪电活动发生在 1 月和 2 月，而最低的活动发生在 6 月和 8 月。智利巴塔哥尼亚再次表现出不同的行为，因为最高的活动出现在 5 月和 8 月，而最低的出现在 9 月。此处提供的分析和结果有助于了解该地区以前没有特征的闪电活动，并可作为未来研究的基础，以确定这种自然现象的行为。