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Detailed Reference Information |
Loutchenko, L.N. and Raspopov, O.M. (2006). Extreme solar events and magnetic storms in October 2003 and their manifestations in the midlatitude ionosphere. International Journal of Geomagnetism and Aeronomy 6: doi: 10.1029/2005GI000108. issn: 1524-4423. |
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<1>¿¿Effects of the extreme solar phenomena and magnetic storms on 28--30 October 2003 in the midlatitude ionosphere are studied on the basis of the disturbances of the VLF signals at midlatitudinal paths and geophysical situation in the magnetosphere and ionosphere. The aim of the study was, on one hand, to reveal ionospheric effects in variations of the electron concentration in the lower ionosphere and, on the other hand, monitoring of the shift of the region of auroral processes into middle latitudes during magnetic storms, where there is no other types of observations of these phenomena. The estimate of VLF fields on the disturbance model of the ionosphere shows an increase by an order of magnitude in the electron concentration in the sunlit conditions during an X-ray flare and a descent of the ionosphere at night at middle latitudes during the magnetic storm. The latter fact indicates that there are injections into the ionosphere of electrons with energies of tens (and probably hundreds) keV. Joint analysis of the data on VLF signals, structure, and dynamics of the magnetosphere and also auroral and geomagnetic activity shows that in the evening UT hours on 29 and 30 October 2003, there is a splitting of the region of auroral processes to two distanced latitude zones located at geomagnetic latitudes above 48-55o and 38-46o. |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Ionosphere, Ionosphere/magnetosphere interactions, Magnetospheric Physics, Magnetic storms and substorms, Magnetospheric Physics, Energetic particles, precipitating |
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Journal
International Journal of Geomagnetism and Aeronomy |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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