Deterministic Chaos in Electromagnetic Fields Induced by Lightning Discharge

摘要：

We applied chaos theory to irregular atmospheric signals generated by lightning discharges in a summer thunderstorm. As the atmospheric signals, we measured time series of the induction field’s amplitude using an orthogonal loop antenna (60 cm in diameter, frequency range of 10 kHz to 500 kHz). We plotted various trajectories in m-dimensional phase space and found strange attractors in these trajectories. We estimated the correlation dimension to be 7.6 for the signals of a cloud-to-ground flash and 4.1 for a cloud-to-cloud flash. We also obtained the spectrum of the Lyapunov exponents for reconstructing the embedding trajectory in a three-dimensional phase space vector. It is concluded that a chaotic characteristic exists in the induction field components.

作者: Tadaomi Miyazaki Tomio Okada

作者单位: Tadaomi Miyazaki, Tomio Okada,Maebashi Institute of Technology

会议类型: 国际会议

会议名称: 第13届国际大气电学会议(The 13th International Conference on Atmospheric Electricity)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-13（万方平台首次上网日期，不代表论文的发表时间）