The results show that there is a good correlation between the enhancement of ELF/VLF waves and the CME events. Immidately following the enhanced wave activity driven by CMEs during the initial phase, the wave intensity decreases temporarily at the beginning of storm main phase. The strongest ...
ELF/VLF wave generation via ionospheric HF heating:Experimental comparison of amplitude modulation, beam painting, and geometric modulation. Cohen M B,Inan U S,Golkowski M, et al. Chinese Journal of Geophysics . 2010Cohen, M. B., U. S. Inan, M. Gołkowski, and M. J. McCarrick (...
We find that the steering techniques such as the geometric modulation "circle sweep" enhances the total ELF/VLF power injected into the magnetosphere by 5–7 dB compared to amplitude modulated heating, with a few dB enhancement in the peak magnetic field value. Another technique known as beam ...
[1] On 15 October 1999, charged particle and plasma wave detectors on the Polar satellite observed an enhancement in precipitating energetic electrons coincident with an ELF/VLF electromagnetic emission. Assuming that the electromagnetic wave was field aligned and scattered trapped electrons by first-...
We also observed dayside ELF/VLF wave enhancement, possibly driven by magnetospheric compression by solar wind, over an MLT extent of at least 5 h. Ground observations tend not to observe ELF/VLF waves in the post-midnight sector, although other methods clearly show the existence of waves. ...
For example, the electric field disturbance before the earthquake observed by the DEMETER satellite in the frequency range of 39–80 Hz [27], and the enhancement of magnetic field intensity at 100, 216, and 467 Hz observed by the OGO-6 satellite [28]. Usually, the frequency range of ...