Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8140148 | Journal of Atmospheric and Solar-Terrestrial Physics | 2014 | 6 Pages |
Abstract
We report results from the experiment aimed at the artificial excitation of extremely low-frequency (ELF) electromagnetic waves with frequencies corresponding to the frequency of Schumann resonance. Electromagnetic waves with these frequencies can form a standing pattern inside the spherical cavity formed by the surface of the Earth and the ionosphere. In the experiment the ELF waves were excited by heating the ionosphere with X-mode HF electromagnetic waves generated at the High Frequency Active Auroral Research Program (HAARP) facility in Alaska. The experiment demonstrates that heating of the ionosphere can excite relatively large-amplitude electromagnetic waves with frequencies in the range 7.8-8.0Â Hz when the ionosphere has a strong F layer, the frequency of the HF radiation is in the range 3.20-4.57Â MHz, and the electric field greater than 5Â mV/m is present in the ionosphere.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
A.V. Streltsov, T. Guido, B. Tulegenov, J. Labenski, C.-L. Chang,