Physics
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jastp..72....1g&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 72, Issue 1, p. 1-6.
Physics
Ionosphere Alfvén Resonator, Seismogenic Coupling, Modulation Of Ionosphere Parameters
Scientific paper
Modulation of magnetic components of ULF Alfvén wave (f=0.02-2 Hz), which is incident from the magnetosphere to the Earth's surface, is considered. This modulation is due to variations of electron and ion concentrations within the ionosphere F-layer caused by acoustic-gravity waves or internal gravity waves of ULF (0.0005-0.02 Hz) range. The maximum modulation of the magnetic field at the Earth's surface takes place when maximum variations of the electron concentration are observed at altitudes 225-275 km. The modulation is more essential when the inclination angle of the geomagnetic field is >=50°. The 20% modulation of the electron concentration results in the magnetic field modulation at the Earth's surface of 30-40%. At the frequencies f~1 Hz there exists the resonant modulation when in the narrow (~0.1 Hz) frequency range the modulation increases sharply. The results can explain the ground-based observations of generation of the seismo-related ULF magnetic perturbations.
Grimalsky Volodymyr
Koshevaya S.
Kotsarenko A.
Perez-Enriquez Roman
Pulinets Sergey
No associations
LandOfFree
On the modulation of intensity of Alfvén resonances before earthquakes: Observations and model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the modulation of intensity of Alfvén resonances before earthquakes: Observations and model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the modulation of intensity of Alfvén resonances before earthquakes: Observations and model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1448757