2-D Finite Difference Analyses of Schumann Resonance and Identification of Lightning Distribution
スポンサーリンク
概要
- 論文の詳細を見る
The extremely low frequency propagation associated with Schumann resonance phenomena are calculated numerically by the frequency-domain finite difference method, and distribution of source lightnings is identified by solving an inverse problem using the computed spectra as a set of basis functions. The finite difference equations are formulated in terms of discretized magnetic fields in the Cartesian coordinates adopting a cylindrical shell cavity for simplicity. The most reliable electron and neutral density models in the atmosphere and the ionosphere can be used to take into consideration propagation losses. The inverse problem already developed is applied to the measured data to reconstruct lightning activity distribution as a function of distance from the observation point. The reconstructed data successfully show the lightning active season, time, and distance, which are reasonable in comparison with the earlier reports.
- 社団法人 電気学会の論文
- 2004-12-01
著者
-
Ando Yoshiaki
The University Of Electro-communications
-
HAYAKAWA Masashi
The University of Electro-Communications
-
Hayakawa Masashi
The Univ. Of Electro-communications
関連論文
- ANOMALOUS SUBSURFACE VLF ELECTRIC FIELD CHANGES ASSOCIATED WITH EARTHQUAKES AND NUCLEAR EXPLOSIONS OBSERVED AT AGRA
- Natural Electromagnetic Phenomena and Electromagnetic Theory : A Review
- Recent Studies on Schumann Resonance
- 2-D Finite Difference Analyses of Schumann Resonance and Identification of Lightning Distribution
- Ultra-Low-Frequency Electromagnetic Emissions Associated with Earthquakes
- ULF wave generation by seismic signals
- VLF ELECTROMAGNETIC NOISE BURSTS RELATED TO MAJOR SEISMIC ACTIVITIES OBSERVED AT AGRA
- First results of thermal IR satellite data application for earthquake research in China and Japan
- Thermal IR satellite data for earthquakes research in Middle Asia, China and Japan
- The Importance of Direction Finding Technique for the Study of VLF/ELF Sferics and Whistlers
- Electromagnetic phenomena associated with earthquakes: Review
- On the Estimation of Wave Energy Distribution of Magnetospheric VLF Waves at the Ionospheric Base with Ground-Based Multiple Electromagnetic Field Components
- Intensity of Schumann resonance oscillations and the ground surface temperature
- NUMERICAL SIMULATION OF IONOSPHERIC ALFVEN RESONATOR
- FDTD simulation and experimental result on VLF scattering by ionospheric perturbations in Earth-ionosphere waveguide
- Special Issue on Recent Progress in Electromagnetic Theory and its Application
- Recent Trend of Electromagnetic Theory in Advanced Technology and Society
- Subionospheric LF monitoring of ionospheric perturbations prior to the Tokachi-oki earthquake and a possible mechanism of lithosphere-ionosphere coupling
- ANALYSES OF THE ULF/ELF RECORDS PERFORMED IN A SEISMO-ACTIVE REGION
- Recent Progress in Seismo Electromagnetics (Electromagnetic Phenomena Associated with Earthquakes)
- Synthesis of Polynomial Compensators for Suppression of Low-Frequency Noises in Electronic Devices
- Polarisation Effects for Subionospheric ELF/VLF Signals Penetrated into the Sea Water
- Study on generation machanisms of magnetospheric VLF/ELF emissions based on the direction findings
- A Statistical Study on the Dependence of Characteristics of VLF/LF Terminator Times on the Propagation Direction