Solar Activity and Dynamics of Particles in the Ionosphere
Keywords:
Electrojet, dynamics, ionosphere, thennospheric )t'ind, electron densityAbstract
Communication in Physical Sciences. 1(1):29-34, April 2010
Authors: N. Okekel , W. T. Sivla2, S.O. Agha3, and E.A. Hanson4
The study of midlatitude ionospheric stonn dynanüc, IOM' latitude irregularities and equatorial region have shown that the "lidlatitude is ntuch Inore dyncunics than earlier predicted. It was found that strong enhancenent of electron density that occurred in "lidlatitude at mnidday, could also favour the local E X B instability that is driven by thennospheric wind. Hence, the high effect of ionospheric disturbances was recorded at the nüdlatitudes, which was attributed to increase in solar activities. On the other hand, "linor stonn effect H'as observed in the equatorial region. It vs•as then concluded that very strong storin effects recorded in the nudtitudes could be responsible for its being conspicuously very dynamic.
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References
Akasofu, S.I. and Meng. C.I. (1969): A Study of Polar and Magnetic Substom, J.Geophys. Res., 74, 293-300.
Burch, J.L. (1972): for -the. Triggering of Polar Magnetic Substorms by Storm Sudden Commencements, J. Geoph. Res, 97, 5629-5640.
Burch, J.L. (1973): Triggering of the Substorm Expansion Phase by Directional Discontinuities in the Interplanetary Magnetic Field, EOS Trans. AGU, 54, 413424.
Crooker, N. U. and McAllister, A. H. (1997): Transients associated with recurrent storms, J. Geophys. Res.., 102, 14041-14047.
Danilov, A.D. and Lastovicka J. (2001): Effects of Geomagnetic Storms on the Ionosphere and Atmosphere. Int. J. of Geomagn and Herono. V 2, 3. 1 1-17.
Egedal, J. (1947): The Magnetic Diurnal Variation of the Horizontal Force near the Magnetic Equator. J. Terr. Magn. Electr.52, 449-451.
Fairfield, DA, Mukai, T., Lui, A.T.V., Catteh, C.A., Reeves, G.D. Nagai, T. Rosboker G, Singer, H.J., Kaiser, M.L., Kokubun, S. Lazarus, A.J. Epping, R.P. Nakamura, M. , Steinberg J.T., Tsurunda, K. Williams, D.J. and Yamamoto, T. (1998): Geotail Observations of Substorm onset in the Inner Magnetotail .J. Geophys. Res. 102, 103-117.
Kikuchi T. (2002): Transmission Line Model for Ground Magnetic Disturbances. Journal of the Communications Research Laboratory. Vol 49, no. 3. pp 119 -138.
Kuznetsov, S.N. and Kudala, K. (1995): The Effect of the Equatorial Ionospheric Electrojet on the Dynamics of Trapped Particles in the Inner Radiation Belt. Geomagh. And Aerono. 35, 2, 167 — 170.
Okeke, F.N (1998): The Magnetospheric Substorm of 29 April 1997. Irish Astro. J. 26(1) 23-28.
Okeke F.N. and Hamano Y. (2000): Daily Variations of Geomagnetic HD and Z-Field at Equatorial latitudes. Earth Planet Space. Vol. 52, pp. 237 -243.
Pulkkinen, T.l, Baker, D.N., Frank, L.A. Signwarth, J.B. Opgeneonh, H.J. Greenwald, R., FHis-Chriskenen, E. Mukai, T., Nakamura, R., Singer H., Reeves, G.D. and Lesler M. (1998): Two substorms intensification compared: Onset, expansion and global consequences, J.Geophys. Res., 103, 15-27.
Ratcliffe, J.A. 1972. An Introduction to the Ionosphere and Magnetosphere: Cambridge University Press: 137-131.
Saka, 0., Kitamura, T. , Tachihara, H. , Shinohar, M., Trivedi, N. B., Reeves, G. D and Hansen, T. L. (1998): Amplitude Modulation of the Equatorial Electrojet during a Magnetospheric Storm. Jour. Atmos. and Solar-Terr. Phy. 60, (11), 11291137.
Sizora, L.Z. (1995): Dynamics of Equatorial Counter Electrojet caused by Interplanetary Magnetic Field. Geomagn. and Aerono. 35, I, — 145.
Shinichi, W. and Takashi, W., (1998): The solar driver of geomagnetic disturbances during solar minimum. Geophys. Res. Lett. 25, (14) 2489-2492.
Yizengaw, E. Dyson, P.L. Essex, E.A. and Moldwin M.B. (2005): Ionosphere dynamics over the Southern 1--lemisphere during the 31 March 2001 seVere magnetic storm using multi instrument measurement dataAnnals Geophysicae 23, 707-72.
Yizengaw E. and Essex E.A. (2002). Use of GPS Signals to Study total electron content of the ionosphere during the geomagnetic storm on 22 September 1999. WARS02. Proceedings. Australian Academy of Science, pp. 1- 4. ISBN 0-9580476-0-X.
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