Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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A STATISTICAL STUDY OF MAGNETIC STORM RECOVERY PHASE: PRELIMINARY RESULTS

  • Lee, D.Y. (Physics Department, Korea Advanced Institute of Science and Technology) ;
  • Hwang, J.A. (Physics Department, Korea Advanced Institute of Science and Technology) ;
  • Min, K.W. (Physics Department, Korea Advanced Institute of Science and Technology) ;
  • Lee, E.S. (Physics Department, Korea Advanced Institute of Science and Technology) ;
  • Cho, K.S. (Radio Research Laboratory) ;
  • Kim, S.G. (Radio Research Laboratory) ;
  • Bae, S.H. (Radio Research Laboratory)
  • Published : 2001.06.01
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Abstract

A statistical study has been performed of the magnetic storm recovery phase using the Dst index for 102 storm events in the interval January 1996 to December 1998. In 43 cases (or 42%) out of our 102 events, the recovery phase exhibits fast recovery (kaking about 8 hours or less) at its initial stage or for the entire recovery period. Since this fast recovery can be explained by the fast charge exchange less of $O^{+}$ ions which mostly com from the ionosphere, and since a fraction of $H^{+}$ ions is of ionospheric origin as well, our statistical result supports the view that the source of ring current ions in many magnetic storms can be terrestrial.

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References

  1. J. Geophys. Res. v.75 Cornwall, J. M.;Coroniti, F. V.;Thorne, R. M.
  2. Magnetic storms Geophys. Monog Ser. v.98 Daglis, I. A.
  3. Rev. Geophys. v.37 Daglis, I. A.;Thorne, R. M.;Baumjohann, W.;Orsini, S.
  4. J. Geophys. Res. v.96 Fok, M. C.;Kozyra, J. U.;Nagy, A. F.;Cravens, T. E.
  5. J. Geophys. Res. v.99 Gonzalez, W. D.;Joselyn, J. A.;Kamide, Y.;Kroehl, H. W.;Rostoker, G.;Vasyliunas, V. M.
  6. J. Geophys. Res. v.106 Hamilton, D. C.;Gloeckner, G.;Ipavich, F. M.;Studemann, W.;Wilkey, B.;Kremser, G.
  7. J. Geophys. Res. v.103 Kamide, Y.;Baumjohann, W.;Daglis, I. A.;Gonzalez, W. D.;Grande, M.;Joselyn, J. A.;McPherron, R. L.;Phillips, J. L.;Reeves, E. G. D.;Rostoker, G.;Sharma, A. S.;Singer, H. J.;Tsurutani, B. T.;Vasyliunas, V. M.
  8. J. Geophys. Res. v.103 Kamide, Y.;Yokoyama, N.;Gonzalez, W. D.;Tsurutani, B. T.;Daglis, I. A.;Brekke, A.;Masuda, S.
  9. Geophys. Res. Lett. v.27 Russell, C. T.;Lu, G.;Luhmann, J. G.
  10. Space Sci. Rev. v.22 Smith, P. H.;Bewtra, N. K.
  11. Space Sci. Rev. v.42 Williams, D. J.
  12. J. Geophys. Res. v.102 Yokoyama, N.;Kamide, Y.
  13. J. Geophys. Res. v.101 Hultqvist, B.
  14. J. Geophys. Res v.106 Jorgensen, A.M.;Henderson, M.G.;Roelof, E.C.;Reeves, G.D.;Spence, H.E.