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Variations in the total electron content near the crest of the equatorial ionization anomaly during the November 2004 geomagnetic storm

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Abstract

Space weather studies using a Global Positioning System (GPS) receiver are underway near the crest of the equatorial ionization anomaly (EIA), at Udaipur (MLAT 16.0°N), India. These studies are probably, the first of its kind in the Indian zone near the crest of the EIA. Results for the geomagnetic storm that occurred during November 2004 are presented. Drastic variations in the total electron content (TEC) have been observed as a result of this storm. It is inferred that the reduced levels of TEC following the storm may be attributed to the weakened equatorial plasma fountain due to the disturbance dynamo fields.

References

  1. Abdu, M. A., I. S. Batista, H. Takahashi, J. MacDougall, J. H. A. Sobral, A. F. Medeiros, and N. B. Trivedi, Magnetospheric disturbances induced equatorial plasma bubble development and dynamics, J. Geophys. Res., 108(A12), 1449, 2003.

  2. Blanc, M. and A. D. Richmond, The ionospheric disturbance dynamo, J. Geophys. Res., 85, 1669–1686, 1980.

  3. Biktash, L. Z., Role of magnetospheric and ionospheric currents in the generation of equatorial scintillations during geomagnetic storms, Ann. Geophys., 22, 3195, 2004.

  4. Fejer, B. G., Equatorial ionospheric electric fields associated with magne-tospheric disturbances, in Solar Wind Magnetospheric Coupling, edited by Y. Kamide and J. A. Slavin, Terra Sci., Tokyo, 519–545, 1986.

  5. Fejer, B. G., Low latitude storm time ionospheric electrodynamics, J. Atmos. Sol. Terr. Phys., 64, 1401–1408, 2002.

  6. Fejer, B. G., C. A. Gonzalez, D. T. Farley, and M. C. Kelley, Equatorial electric fields during magnetically disturbed conditions, J. Geophys. Res., 84, 5797–5802, 1979.

  7. Fejer, B. G. and L. Scherliess, Time dependent response of equatorial ionospheric electric fields to megnetospheric disturbances, Geophys. Res. Lett., 22, 851–854, 1995.

  8. Fuller-Rowell, T. M., M. V. Codrescu, R. G. Roble, and A. J. Richmond, How does the thermosphere and ionosphere react to a geomagnetic storm?, in Magnetic Storm, Geophys. Monogr. Ser., 98, edited by B. T. Tsurutani et al., 203, AGU, Washington, D. C., 1997.

  9. Fuller-Rowell, T. M., G. H. Miillward, A. D. Richmond, and M. V. Codrescu, Storm-time changes in the upper atmosphere at low latitudes, J. Atmos. Sol. Terr. Phys., 64, 1383–1391, 2002.

  10. Gonzalez, C. A., M. C. Kelly, B. G. Fejer, J. F. Vickrey, and R. F. Woodman, Equatorial electric fileds during magnetically disturbed conditions, 2, Implication of simultaneous auroral and equatorial measurements, J. Geophys. Res., 84, 5803–5812, 1979.

  11. Jakowaski, N., S. Schluter, and E. Sardon, Total electron content of the ionosphere during the geomagnetic storm on 10 January 1997, J. Atmos. Terr. Phys., 61, 299–307, 1999.

  12. Kelly, M. C., B. G. Fejer, and C. A. Gonzalez, An explanation for anomalous equatorial ionospheric electric fields associated with the northward turning of the interplanetary magnetic field, Geophys. Res. Lett., 6, 301, 1979.

  13. Kutiev, I., S. Watanabe, Y. Otsuka, and A. Saito, Total electron content behavior over Japan during geomagnetic storms, J. Geophys. Res., 110, A01308, 2005.

  14. Ma, G. and T. Maruyama, Derivation of TEC and estimation of instrumental biases from GEONET in Japan, Ann. Geophys., 21, 2083–2093, 2003.

  15. Maruyama, T., G. Ma, and M. Nakamura, Signature of TEC storm on 6 November 2001 derived from dense GPS receiver network and ionosonde chain over Japan, J. Geophys. Res., 109, A10302, 2004.

  16. Mitchell, C. N., L. Alfonsi, G. De Fanceschi, M. Lester, V. Romano, and A. W. Wernik, GPS TEC and scintillation measurements from the polar ionosphere during the October 2003 storm, Geophys. Res. Lett., 32, L12S03, 2005.

  17. Sastri, J. H., K. B. Ramesh, and H. N. Rangnath Rao, Transient composite electric field disturbances near dip equator associated with auroral substorms, Geophys. Res. Lett., 19, 1451–1454, 1992.

  18. Scherliess, L. and B. G. Fejer, Storm time dependence of equatorial disturbance dynamo zonal electric field, J. Geophys. Res., 102, 24037–24046, 1997.

  19. Spiro, R. W., R. A. Wolf, and B. G. Fejer, Penetration of high latitude electric field effects to low latitudes during SUNDIAL 1984, Ann. Geophys., 6, 39–50, 1988.

  20. Tsugawa, T. A., Y. Saito, Y. Otsuka, and M. Yamamoto, Damping of large-scale traveling disturbances with GPS networks during the geomagnetic storm, J. Geophys. Res., 108(A3), 1127, 2003.

  21. Tsurutani, B., A. Manucci, B. Iijima, M. A. Abdu, J. H. A. Sobral, W. Gonzalez, F. Guarnier, T. Tsuda, A. Saito, K. Yumoto, B. G. Fejer, T. J. Fuller-Rowell, J. Kozyra, J. C. Foster, A. Coster, and V. M. Vasyliu-nas, Global dayside ionosphere uplift and enhancement associated with interplanetary electric field, J. Geophys. Res., 109, A08302, 2004.

  22. Zhang, D. H. and Z. Xiao, Study of ionospheric total electron content response to the great flare on 15 April 2001 using the International GPS Service network for the whole sunlit Hemisphere, J. Geophys. Res., 108(A8), 2003.

  23. Zhao, B., W. Wan, and L. Liu, Responses of equatorial anomaly to the October-November 2003 superstorms, Ann. Geophys., 23, 693, 2005.

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Correspondence to R. Pandey.

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Dashora, N., Pandey, R. Variations in the total electron content near the crest of the equatorial ionization anomaly during the November 2004 geomagnetic storm. Earth Planet Sp 59, 127–131 (2007) doi:10.1186/BF03352685

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Key words

  • Space weather
  • Global Positioning System (GPS)
  • geomagnetic storms
  • total electron content (TEC)
  • equatorial ionization anomaly (EIA)