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Lightning represents a natural phenomenon of historic interest; due to its complex aspects research continues in many countries and reveals amazing results. Lightning has been observed traditionally because of the hazards causing both a number of human victims every year, and increasing damage to forests, buildings, power lines, structures and electronic devices. A more recent focus of attention relates to the potential impact of lightning on atmospheric chemistry and climate. In the present volume the most important current questions on Lightning are described and analyzed under many experimental and theoretical aspects, and each topic is presented by experts in the field. Lightning detection techniques using ground-based and space-borne methods are described, along with network engineering and many statistical results. Understanding of the various processes during flash occurrence is still a matter of research, such as initiating effects, development and propagation of leaders, and electrical neutralization by means of relatively large short-term and continuing currents in discharge channels.In this sense, contributions contain research in atmospheric electricity regarding cloud physics and lightning, lightning physics, modeling of the electricity of storms, and lightning in relation with middle atmospheric events.Special phenomena such as triggered lightning, and sprite observations are covered. Also discussed are lightning-induced nitrogen oxides and their effects on atmospheric chemistry and climate. Finally, severe weather conditions are often related to lightning so that observations and nowcasting are scrutinized.
Hans D. Betz received his PhD in Physics at the University of Heidelberg, Germany. He performed research and teaching at the Physics Department of MIT at Boston, USA, thereafter at the Physics Department of the Ludwig Maximilians University, Munich. Major fields of research covered laser, atomic and nuclear physics, and atmospheric electricity.
Present Understanding of the Lightning Return Stroke.- Triggered Lightning.- Electric Field and Charge Structure in Lightning-Producing Clouds.- Characteristics of Lightning in Supercells.- LINET – An International VLF/LF Lightning Detection Network in Europe.- LAMPINET – Lightning Detection in Italy.- Lightning Detection in Spain: The Particular Case of Catalonia.- Spatial Distribution and Frequency of Thunderstorms and Lightning in Australia.- Cloud-to-Ground Lightning Observations in Brazil.- Observation and Interpretation of Lightning Flashes with Electromagnetic Lightning Mapper.- Nowcasting of Thunderstorms Using VHF Measurements.- Optical Detection of Lightning from Space.- Space- and Ground-Based Studies of Lightning Signatures.- Lightning Measurements from Satellites and Significance for Storms in the Mediterranean.- Energetic Radiation and Lightning.- Schumann Resonance Signatures of Global Lightning Activity.- The Meteorological and Electrical Structure of TLE-Producing Convective Storms.- Infrasound from Lightning and Sprites.- Lightning in the Mediterranean in Relation with Cloud Microphysical Parameters.- Lightning and Precipitation.- Comparative Analysis of Flash and Radar Characteristics of Thunderstorm Cells.- Lightning Characteristics of Extreme Weather Events.- Flash Cells in Thunderstorms.- Thunderstorms, Lightning and Climate Change.- Impact of Lightning on Air Chemistry and Climate.- Lightning and NO X Production in Global Models.- Lightning Protection of Structures.