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Percentage of single-stroke flashes related to different thunderstorm types

机译：与不同雷暴类型相关的单行程闪烁的百分比

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摘要

This study shows an analysis of data from measurements of natural cloud-to-ground lightning performed in Austria between 2009 and 2018. The measurement system consists of a high-speed Video and electric Field Recording System (VFRS). Over the whole period, 735 negative cloud-to-ground flashes were recorded at 33 different locations on 61 individual days. The measurement locations are scattered across the Austrian territory in Alpine and pre-Alpine terrain. Data from the Austrian Lightning Location System (LLS), ALDIS, are correlated with the collected VFRS ground truth data to complete the dataset. These datasets are used to analyze possible reasons for the detected variation of single-stroke flashes in Austria. The percentage of single-stroke flashes among all negative flashes is higher in this study (27 %) than in previous studies from different countries (12 to 24 %). A classification of thunderstorms does not show any dependency of the single-stroke flash occurrence on different thunderstorm types (based on radar data) or underlying meteorological characteristics (based on vertical wind shear computed from weather stations and radiosondes). In contrast, a possible dependency of the occurrence of single-stroke flashes on underlying terrain (Alpine versus pre-Alpine) is noted.
机译：本研究显示了2009年至2018年在奥地利在奥地利进行的自然云到地闪电测量的数据分析。测量系统由高速视频和电场记录系统（VFRS）组成。在整个时期，在61个单独的几天内，在33个不同的位置记录了735个负云到地闪光。测量位置散落在阿尔卑斯山和高山前地形的奥地利领土上。来自奥地利闪电定位系统（LLS），ALDIS的数据与收集的VFRS地面真理数据相关联，以完成数据集。这些数据集用于分析检测到奥地利单行程闪烁变化的可能原因。本研究中所有负闪烁中的单冲程闪烁的百分比较高（27％）比以前来自不同国家的研究（12至24％）。雷暴的分类并未显示单冲程闪光发生在不同雷暴类型（基于雷达数据）或底层气象特征（基于从气象站和无线电钻石计算的垂直风剪）上）。相反，注意到在底层地形（Alpine与allpine）上的单行程发生的可能依赖性。

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