A Statistical Study on the Dependence of Characteristics of VLF/LF Terminator Times on the Propagation Direction
スポンサーリンク
概要
- 論文の詳細を見る
We present a detailed statistical study over two years on the times of amplitude minima (so-called terminator times) observed for the VLF/LF transmitters NPM/NWC/JJY as received at three sites. We analyzed three paths: East-West long propagation path, North-South long propagation path and North-South short propagation path. In this paper we examine the statistical behavior on the dependence of VLF/LF terminator time characteristics on the propagation direction and also we focus on the short-term terminator time (TT) characteristics. We found from the data analysis that TT behavior is regularly influenced by the lower-ionospheric condition which depends on the sunrise/sunset transition and season.
- 2006-04-01
著者
-
Maekawa Shinko
The University of Electro-Communications
-
Hayakawa Masashi
The Univ. Of Electro-communications
関連論文
- Natural Electromagnetic Phenomena and Electromagnetic Theory : A Review
- 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