This research addresses a seldom studied aspect of lightning—lightning cessation. Holle et al. (1992) found that the majority of casualties occur either during thunderstorm initiation or during dissipation. Between these times, when the threat of lightning is obvious, there are fewer casualties. Thus, the initiation and cessation of lightning activity are critically important periods. Florida i...

In this paper, we demonstrate the temperature of lightning channel utilizing the theory of lightning spectra and the model of local thermodynamic equilibrium (LTE). The impulse current generator platform (ICGS) was used to simulate the lightning discharge channel, and the spectral energy of infrared spectroscopy (930 nm) and the visible spectroscopy (648.2 nm) of the simulated lightning has bee...

Lightning protection for power supply of electronic equipment is an important problem of low-voltage lightning protection systems. In this paper, lightning characteristics of electronic equipment’s power supply are studied. Firstly impulse generator is developed. Then lightning characteristics tests for different powersupply, such as switch model power supply, are done. Test results show: diffe...

Lightning-caused fire is the most important natural fire source. Its induced forest fire brings enormous losses to human beings and ecological environment. Many countries have paid great attention to the prediction of lightning-caused fire. From the viewpoint of the main factors affecting the formation of lightning-caused fire, this paper emphatically analyzed the effects and action mechanisms ...

Progresses in the research on physical processes of lightning discharge and electric structure of thunderstorm in the last decade in China have been reviewed. By using the self-developed lightning detecting and locating techniques with high temporal and spatial resolution, the characteristics and parameters of lightning discharge in some representative areas in China have been obtained. Observa...

Lightning is the result of the buildup and discharge of electrical energy. The air in a lightning strike is heated to 50,000 degrees Fahrenheit. It is this rapid heating of the air that produces the shock wave that results in thunder. A cloud-to-ground lightning strike begins as an invisible channel of electrically-charged air moving from the cloud toward the ground. When one channel nears an o...

The conventional passive lightning protection mode depending on fixed lightning rods, overhead grounded wires, arresters and SPDs couldn’t fit for the demand in practice gradually. Therefore, it is necessary to explore an available and optional way that could enhance and improve them. Based on Intelligent Control Technology and combined with lightning detection, the Active Lightning Protection ...

Lightning has a profound impact on many aspects of modern day society. Understanding its spatial distributions is fundamental in learning to coexist with its tremendous power. This study examined the spatial distribution of cloud-to-ground lightning over southern Michigan using data provided by DTE Energy Corporation in Detroit, Michigan. Flash density and ‘lightning day’ maps were produced for...

At the end of 2008, a new lightning location system (LLS) was established as part of LINET lightning detection network, which was developed in Germany and nowadays counts over 100 sensors installed across Europe. Four sensors were installed in different parts of Croatia. Together with sensors in neighbour countries, a sensor baseline of ≈250 km has been achieved covering Croatian territory. Fir...

DECEMBER 2002 AMERICAN METEOROLOGICAL SOCIETY | CONVENTIONAL SYSTEMS. Properly designed conventional lightning protection systems for ground-based structures serve to provide lightning attachment points and paths for the lightning current to follow from the attachment points into the ground without harm to the protected structure. Such systems are basically composed of three elements: 1) “air t...