1998-2019年南宁市雷电灾害特征分析

为了更好地揭示南宁市雷电灾害分布特点和发生规律,科学有效指导防雷减灾工作,基于南宁市2006-2019年二维雷电监测定位资料和1998-2019年雷电灾害汇编资料,分析研究了雷电灾害时空分布特征及与雷暴活动的关系。结果表明,南宁市雷电灾害逐月分布特征呈单峰型,5-9月是雷电灾害多发期,10月至次翌年2月是雷电灾害低发期;1998-2019年南宁市发生286起雷电灾害中城市占比略高于农村,农村雷灾以人员伤亡为主,城市则以经济损失为主;5-9月是南宁市闪电活动高发期,6月云地闪最多,11月至翌年2月闪电较少发生;雷电灾害事故数与雷暴活跃度成正相关。

Analysis on the characteristics of lightning disaster in Nanning from 1998 to 2019

In order to better reveal the distribution characteristics and occurrence rules of lightning disaster in Nanning, and guide the work of lightning protection and disaster reduction scientifically and effectively, the temporal and spatial distribution characteristics of lightning disaster and the relationship between lightning disaster and thunderstorm activity are analyzed based on the two-dimensional lightning monitoring and positioning data of Nanning City in 2006-2019 and the compilation data of lightning disaster in 1998-2019. The results show that the monthly distribution of lightning disasters in Nanning is single peak type. May to September is the frequent occurrence period of lighting disaster, and October to February is the period of low occurrence. From1998 to 2019, the proportion of cities in 286 lightning disasters occurred in Nanning was slightly higher than that in rural areas. The main casualties were in rural areas, while the main economic losses were in urban areas. From May to September is the high occurrence period of lightning activity, with the most cloud to ground lightning in June, and from November to February, the lighting occurs less. The number of lightning disaster accidents is positively related to the activity of thunderstorm.