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Roldugin et al. 2001

Roldugin, V.C., Maltsev, Y.P., Petrova, G.A. and Vasiljev, A.N. (2001). Decrease of the first Schumann resonance frequency during solar proton events. Journal of Geophysical Research 106: doi: 10.1029/2000JA900118. issn: 0148-0227.

The variations of the first-order Schumann resonance frequency in Kola peninsula are studied for four solar proton events on November 4 and 6, 1997 and on May 2 and May 6, 1998. It is found that the frequency decrease by about 0.15 Hz during the peaks of the proton penetrations. Such a decrease is in agreement with modeling calculations. A very intensive solar X ray burst preceding the proton flare on November 6 caused an increase of the resonance frequency. The decrease of amplitude about of 0.2 pT and the decrease of the resonance bandwidth about of 0.2 Hz are observed in the November events. ¿ 2001 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Geomagnetism and Paleomagnetism, Rapid time variations, Ionosphere, Polar cap ionosphere, Ionosphere, Solar radiation and cosmic ray effects

Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/

Publisher
American Geophysical Union
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