采用2014-2018年6-8月海口多普勒雷达、闪电定位、海南省天气分型等数据资料,分析海南岛分别在西南低压槽、南海低压槽、华南沿海槽影响下40 dBZ回波伸展到0℃层高度的概率,0℃层上强度≥40 dBZ的回波面积,地闪次数与0℃层上强度≥40 dBZ的回波面积比值,地闪次数及地闪发生概率等变量的时空分布特征,结果表明:(1)0℃层上强度≥40 dBZ的回波面积与地闪次数呈正相关.(2)午后40 dBZ回波伸展到0℃层高度的概率与地闪发生概率呈正相关.(3)午后40 dBZ回波伸展到0℃层高度的概率中心与地闪发生概率中心完全重合.(4)在华南沿海槽影响下,0℃层上强度≥40 dBZ的回波面积最大,同时地闪次数最多,午后地闪发生概率中心分布在以海口市南部为中心的海南岛东北部内陆.(5)在南海低压槽影响下,40 dBZ回波伸展到0℃层高度的概率最高,同时午后地闪发生概率最高,午后地闪发生概率中心分布在以儋州市南部为中心的海南岛西北部内陆.(6)在西南低压槽影响下,午后40 dBZ回波伸展到0℃层高度的概率、0℃层上强度≥40 dBZ的回波面积、地闪发生概率、地闪次数等指标在3种天气分型中最低,午后地闪发生概率中心分布在以澄迈县南部为中心的海南岛北部内陆.

基于小波分析方法,通过对7种小波函数在误差控制和阈值方法选取上的对比,参考信噪比及均方误差等计算结果,选取了较为合理的Rigrsure阈值分析方法和sym5小波函数作为地面大气电场信号的去噪处理方法.该方法不仅能够较好地对电场信号波形平滑处理,降低电场波形中噪声信号的叠加度,还可保留闪电引起的电场的快速变化.在此基础上,利用差分计算方法实现了对闪电信号的自动识别,引入了总闪电频数误差及分时段闪电频数与人工分析结果的相关系数等2个参考量来选取差分计算方法中电场差分阈值,通过该方法可以实现闪电频数和极性等有关信息的提取.

The World Wide Lightning Location Network (WWLLN) data was used to analyze the lightning activities of Tropical Storm Bebinca (2013) and Super Typhoon Rammasun (2014). The relationships between lightning activity and cyclonic intensity change, direction of storm motion of the two tropical cyclones were also investigated. Preliminary analyses showed that the two systems produced a large number of lightning strokes in the region of $0\sim800\ km$ from the centers, the numbers are 111,289 and 125,046 for Bebinca and Rammasun, and the average lightning stroke rate of Bebinca was 1021 str/h and that of Rammasun was 680 str/h. Both for Bebinca and Rammasun, their lightning frequency were oscillating in the whole lives, however, it was varied little for Rammasun and decreased for Bebinca. The radial and spatial distribution of lightning showed that the lightning of Bebinca mainly appeared at rain band outside of 300 km and most of lightning occurred at the west of cyclone. For Rammasun, lightning mainly produced in the regions of 160 km away from center, including the inner rainband and outer rainband, and mainly centralized in the west of cyclone. When the area around each storm was divided into four quadrants with respect to storm motion, right and left front, and right and left rear, the maximum number of flashes occurred in the left-rear quadrant of Bebinca, while in the right-front and left-front quadrant of Rammasun. The relationship between lightning frequency and intensity change for Bebinca was weak, while strong for Rammasun. The moving directions of Bebinca and Rammasun exhibited a weak relationship with lightning frequency, but well correlated with lightning spatial distribution.

Basing on the atmospheric electric field data detected by the AMEO340 instrument over Yongzhuang ground-based observation station of Haikou province in 2011, combined with lightning location data and Doppler radar data, the atmospheric electric field characteristics of over-top thunderstorms in small area (2km around the center of the monitoring points) were analyzed. It indicates the warning threshold and the warning time of atmospheric electric field strength.

Basing the lightning risk assessment of Haikou Taojin Building,the lightning risk assessment factors and related assessment techniques were explored.

According to the mechanism of lightning disaster,causes of damage and types of losses,this paper provided the definition and classification of various risk components,and found the factors of components.

根据海南雷电高发的特点,结合国家有关防雷技术标准,探讨在进行建筑物防雷设计时如何在接闪、分流、屏蔽、均压、接地和布线这六方面加深设计深度,使新建建筑物防雷措施在设计阶段就能得到完善。

In this paper,by using principles of geometry,the geometrical structure of the protection range of 3 lightning rods with unequal height is analyzed and proven,and formulas for calculating the heights of lightning rods' vertical and flank protection ranges are derived.By these formulas,the protection height of the lightning rods is determined directly.

Based on the S-type and M-type equipotential bonding-work and their different characteristics,their application scope was discussed.At the same time,the application and the installation notes of lightning protection and earthing engineering were illuminated in this paper.

Based on the techniques of internet and database,Hainan Lightning Protection Operation System was designed a Web-based management system.It performs an automatic managing functions of daily lightning protection Operation,such as regular examination,design review,completion approval,and retrieval,classification enquiries,statistics,Print,notice for the Lightning Protection operations massive data and financial data.

智能家居已开始步入千家万户,但由于其抵抗过电压和过电流浪涌冲击的能力较弱,遭受雷击事故的现象时有发生。该文根据智能家居的电气结构特点,对其防雷设计进行技术分析探讨。

Introduces the requirements on lightning design for intellectual buildings and discusses the countermeasures in the design of lightning system to prevent and mitigate the lightning disaster.

较大范围的气候异常往往是自然灾害的根源.选取海南岛各站(18站)1966～2000年的月平均气温和月总降水量资料,经过要素检验,给定判别标准,统计分析了海南岛近35年气候异常的特征及变化规律.以便于今后开展气候异常的监测、诊断及预测的进一步研究.

介绍在进行建筑物防雷设计时,如何考虑从接闪、分流、屏蔽、均压、接地和布线这六方面来满足防雷技术要求,使新建建筑物防雷措施在设计阶段就能得到完善.

介绍在设备电源线路上安装的低压配电系统浪涌保护器(Surge protective Device 简称SPD)的基本要求及电涌保护系统最常见的元件及浪涌保护器主要的技术参数.为微电子设备及信息系统减少雷电浪涌的危害找出相应的防护措施.