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Detailed Reference Information |
Gordienko, G.I., Vodyannikov, V.V. and Yakovets, A.F. (2005). Ionospheric disturbances over Alma-Ata during the October–November 2003 magnetic storms. Journal of Geophysical Research 110: doi: 10.1029/2004JA010945. issn: 0148-0227. |
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The ionospheric effects of the great geomagnetic storms of 30--31 October and 20--21 November 2003 observed over Alma-Ata (43.25¿N, 76.92¿E) were studied experimentally using ground-based ionosondes. The observations showed a number of unusual (for the Alma-Ata location) ionospheric phenomena during the active phase of the geomagnetic storms. It is a very high F2 layer (h'F ≥ 490 km), an anomalous formation of the E, E2, and F1 layers at nighttime, and the appearance of auroral-type sporadic E layers. Processes of interaction of energetic neutrals with the upper atmosphere modeled by Bauske et al. (1997) for magnetically disturbed conditions seem to explain the phenomena of ionization of F1 and E regions at night. |
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Abstract |
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Keywords
Radio Science, Ionospheric physics (1240, 2400), intense geomagnetic storm, ionospheric disturbance, ionosonde data, nighttime ionosphere, space weather |
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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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