Relationships Between Auroral and Magnetic Activity in the Polar Cusp/Cleft

  • Takasi OGUTI
Part of the NATO ASI Series book series (ASIC, volume 278)

Abstract

Both large- and small-scale dynamics of the cusp aurora and cusp electrodynamics are discussed in connection with electric currents, electric field and ground magnetic perturbations. Sources of the field-aligned electric currents in the dayside polar cusp are most likely located within the boundary layers, both the frontside low latitude and the magnetotai1, where induction currents due to relative motion between the sheath plasma and the magnetosphere produces space charges. The importance of the magnetospheric magnetic field model in the study of the cusp phenomena, especially their magnetospheric source regions, is noted.

Keywords

Solar Wind Interplanetary Magnetic Field Sheath Plasma Polar Cusp Magnetic Impulse 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Akasofu, S.-I. , Midday auroras at the south pole during magnetic sub- storms, J. Geophys, Res., 77, 2303–2308, 1972.ADSCrossRefGoogle Scholar
  2. Akasofu, S.-I., Recent progress in studies of DMSP auroral photographs, Space Sci. Rev., 19, 169–215, 1976.ADSCrossRefGoogle Scholar
  3. Baker, K. B., R. A. Greenwald, A. D. M. Walker, P. F. Bythrow, L. J. Zanetti, T. A. Potemra, D. A. Hardy, F. J. Rich and C. L. Rino, A case study of plasma processes in the dayside cleft, J. Geophys. Res., 91, 3130–3144, 1986.ADSCrossRefGoogle Scholar
  4. Carbary, J. F. and C.-I. Meng, Relations between the interplanetary magnetic field Bz, AE index, and cusp latitude, J. Geophys. Res., 91, 1549–1556, 1986a.ADSCrossRefGoogle Scholar
  5. Carbary, J. F. and C.-I. Meng, Correlation of cusp latitude with Bz and AE(12) using nearly one year’s data, J. Geophys. Res., 91, 10047–10054, 1986b.ADSCrossRefGoogle Scholar
  6. Clauer, C. T., P. M. Banks, A. Q. Smith, T. S. Jørgensen, E. Friis- Christensen, S. Vennerstrøm, V. B. Wickwar, J. D. Kelly and J. Doupnik, Observation of interplanetary magnetic field and of iono-spheric plasma convection in the vicinity of the dayside polar cleft, Geophys. Res. Lett., 11, 891–894, 1984.ADSCrossRefGoogle Scholar
  7. Eather, R. H., S. B. Mende and E. J. Weber, Dayside aurora and relevance to substorm current systems and dayside merging, J. Geophys. Res., 84, 3339–3359, 1979.ADSCrossRefGoogle Scholar
  8. Eather, R. H., Dayside auroral dynamics, J. Geophys. Res., 89, 1695–1700, 1984.ADSCrossRefGoogle Scholar
  9. Eather, R. H., Polar cusp dynamics, J. Geophys. Res., 90, 1569–1576, 1985.ADSCrossRefGoogle Scholar
  10. Erlandson, R. E., L. J. Zanetti, T. A. Potemra, P. F. Bythrow and R. Lundin, IMF By dependence of region 1 Birkeland current near noon, J. Geophys. Res., 93, 9804–9814, 1988.ADSCrossRefGoogle Scholar
  11. Feldstein, Y. I. and G. V. Starkov, Dynamics of auroral belt and polar geomagnetic disturbances, Planet. Space Sci., 15, 209–229, 1967.ADSCrossRefGoogle Scholar
  12. Friis-Christensen, E., K. Lassen, J. Wilhjelm, J. M. Wilcox, W. Gonzalez and D. S. Colburn, Critical component of the interplanetary magnetic field responsible for large geomagnetic effects in the polar cap, J. Geophys. Res., 77, 3371–3376, 1972.ADSCrossRefGoogle Scholar
  13. Friis-Christensen, E. and J. Wilhjelm, Polar cap currents for different directions of the interplanetary magnetic field in the Y-Z plane, J. Geophys. Res., 80, 1248–1260, 1975.ADSCrossRefGoogle Scholar
  14. Friis-Christensen, E., M. A. McHenrv, C. R. Clauer and S. Vennerstrøm, Ionospheric traveling convection vortices observed near the polar cleft: A triggered response to sudden changes in the solar wind, Geophys. Res. Lett., 15, 253–256, 1988.ADSCrossRefGoogle Scholar
  15. Goertz, C. K., E. Nielsen, A. Korth, K. H. Glassmeier, C. Haldoupis, P. Hoeg and D. Hayward, Observations of a possible ground signature of flux transfer events, J. Geophys. Res. 90, 4069–4078, 1985.ADSCrossRefGoogle Scholar
  16. Harang, L., The mean field of disturbance of polar geomagnetic storms, Terr. Magn. Atmosph. Elec., 51, 353–380, 1946.CrossRefGoogle Scholar
  17. Heelis, R. A., W. B. Hanson and J. L. Burch, Ion convection velocity reversals in the dayside cleft, J. Geophys. Res., 81, 3803–3809, 1976.ADSCrossRefGoogle Scholar
  18. Heelis, R. A., The effects of interplanetary magnetic field orientation on dayside high-latitude ionospheric convection, J. Geophys. Res., 89, 2873–2880, 1984.ADSCrossRefGoogle Scholar
  19. Heppner, J. P., Polar-cap electric field distributions related to the interplanetary magnetic field direction, J. Geophys. Res., 77, 4877–4887, 1972.ADSCrossRefGoogle Scholar
  20. Heppner, J. P. , Empirical models of high-latitude electric fields, J. Geophys, Res., 82, 1115–1125, 1977.ADSCrossRefGoogle Scholar
  21. Heppner, J. P. and N. C. Maynard, Empirical high-latitude electric field models, J. Geophys. Res., 92, 4467–4489, 1987.ADSCrossRefGoogle Scholar
  22. Horwitz, J. L. and S.-I. Akasofu, The response of the dayside aurora to sharp northward and southward transitions of the interplanetary magnetic field and to magnetospheric substorms, J. Geophys. Res., 82, 2723–2734, 1977.ADSCrossRefGoogle Scholar
  23. Iijima, T., R. Fujii, T. A. Potemra and N. A. Saflekos, Field-aligned currents in the south polar cap and their relationship to the interplanetary magnetic field, J. Geophys. Res., 83, 5595–5603, 1978.ADSCrossRefGoogle Scholar
  24. Jørgensen, T. S., E. Friis-Christensen, V. B. Wickwar, J. D. Kelly, C. R. Clauer and P. M. Banks, On the reversal from “sunward” to “anti- sunward” plasma convection in the dayside high latitude ionosphere, Geophys. Res. Lett., 11, 887–890, 1984.ADSCrossRefGoogle Scholar
  25. Kaneda, E., Dayside auroral activity and its relation to substorm, Rept. Ionosph. Space Res. Japan, 27, 207–212, 1973.ADSGoogle Scholar
  26. Kokubun, S., T. Yamamoto, K. Hayashi, T. Oguti and A. Egeland, Impulsive Pi bursts associated with poleward moving auroras near the polar cusp, J. Geomagn. Geoelectr., 40, 537–551, 1988.ADSCrossRefGoogle Scholar
  27. Lanzerotti, L. J., L. C. Lee, C. G. Maclennan, A. Wolfe and L. V. Medford, Possible evidence of flux transfer events in the polar ionosphere, Geophys. Res. Lett., 13, 1089–1092, 1986.ADSCrossRefGoogle Scholar
  28. Lanzerotti, L. J., R. D. Hunsucker, D. Rice, L. C. Lee, A. Wolfe, C. G. Maclennan and L. V. Medford, Ionosphere and ground-based response to field-aligned currents near the magnetospheric cusp regions, J. Geophys. Res., 92, 7739–7743, 1987.ADSCrossRefGoogle Scholar
  29. Lee, L. C. and Z. F. Fu, A theory of magnetic flux transfer at the Earths magnetopause, Geophys. Res. Lett., 12, 105–108, 1985.ADSCrossRefGoogle Scholar
  30. Lemaire, J., Impulsive penetration of filamentary plasma elements into the magnetosphere of the Earth and Jupiter, Planet. Space Sci., 25, 887–890, 1977.ADSCrossRefGoogle Scholar
  31. Lundin, R. and E. Dubinin, Solar wind energy transfer regions inside the dayside magnetopause -I. Evidence for magnetosheath plasma penetration, Planet. Space Sci., 32, 745–755, 1984.ADSCrossRefGoogle Scholar
  32. McDiarmid, I. B., J. R. Burrows and M. D. Wilson, Large scale magnetic field perturbations and particle measurements at 1400 km on the dayside, J. Geophys. Res., 84, 1431–1441, 1979.ADSCrossRefGoogle Scholar
  33. Meng, C.-I., Case studies of the storm time variation of the polar cusp, J. Geophys. Res., 88, 137–149, 1983.ADSCrossRefGoogle Scholar
  34. Meng, C.-I. and R. Lundin, Auroral Morphology of the midday oval, J. Geophys. Res., 91, 1572–1584, 1986.ADSCrossRefGoogle Scholar
  35. Oguti, T., Poleward travel of electric current filament in the polar cap region, Rept. Ionosph. Space Res. Japan, 23, 175–184, 1969.Google Scholar
  36. Oguti, T., Questions on the dayside reconnection in connection with magnetospheric convection and open-close boundary, submitted to J. Geomagn. Geoelectr., 1989.Google Scholar
  37. Oguti, T. and K. Hayashi, Multiple correlation between auroral and magnetic pulsations, 2. Determination of electric currents and electric fields around a pulsating auroral patch, JN Geophys. Res., 89, 7467–7481, 1984.ADSCrossRefGoogle Scholar
  38. Oguti, T. and K. Hayashi, Polarization and wave form of magnetic pul-sations below pulsating auroras: Magnetic effects of electric currents induced in an ionization tail of a moving auroral patch, J. Geomagn. Geoelectr., 37, 65–91, 1985.ADSCrossRefGoogle Scholar
  39. Oguti, T., T. Yamamoto, K. Hayashi, S. Kokubun, A. Egeland and J. A. Holtet, Dayside auroral activity and related magnetic impulses in the polar cusp region, J. Geomagn. Geoelectr., 40, 387–408, 1988.ADSCrossRefGoogle Scholar
  40. Russell, C. T. and R. C. Elphic, ISEE observations of flux transfer events at the dayside magnetopause, Geophys. Res. Lett., 6, 33–36, 1979.ADSCrossRefGoogle Scholar
  41. Sandholt, P. E., K. Henriksen, C. D. Deehr, G. G. Sivjee, G. J. Romick and A. Egeland, Dayside cusp auroral morphology related to nightside magnetic activity, J. Geophys. Res., 85, 4132–4138, 1980.ADSCrossRefGoogle Scholar
  42. Sandholt, P. E., A. Egeland, B. Lybekk, C. S. Deehr, G. G. Sivjee and G. J. Romick, Effects of interplanetary magnetic field and magneto- spheric substorm variations on the dayside aurora, Planet. Space Sci., 31, 1345–1362, 1983.ADSCrossRefGoogle Scholar
  43. Sandholt, P. E., C. S. Deehr, A. Egeland and B. Lybekk, Signatures in the dayside aurora of plasma transfer from the magnetosheath, J. Geophys. Res., 91, 10063–10079, 1986.ADSCrossRefGoogle Scholar
  44. Sandholt, P. E. and A. Egeland, Auroral and magnetic variations in the polar cusp and cleft - signatures of magnetopause boundary layer dynamics, Astrophys. Space Sci., 144, 171–199, 1988.ADSGoogle Scholar
  45. Sandholt, P. E., B. Lybekk, A. Egeland, R. Nakamura and T. Oguti, Midday auroral breakup, J. Geomagn. Geoelectr., 41, in press, 1989.Google Scholar
  46. Southwood, D. J. , The ionospheric signature of flux transfer events, J. Geophys. Res., 92, 3207–3213, 1987.ADSCrossRefGoogle Scholar
  47. Svalgaard, L., Polar cap magnetic variations and their relationship with the interplanetary sector structure, Geophys. Res., 78, 2064–2078, 1973.ADSCrossRefGoogle Scholar
  48. Todd, H., B. J. I. Bromage, S. W. H. Cowley, M. Lockwood, A. P. van Eyken and D. M. Willis, EISCAT observations of bursts of rapid flow in the high latitude dayside ionosphere, Geophys. Res. Lett., 13, 909–912, 1986.ADSCrossRefGoogle Scholar
  49. Tsyganenko, N. A. and A. V. Usmanov, Determination of the magnetospheric current system parameters and development of experimental geomagnetic field models based on data from IMP and HEOS satellites, Planet. Space Sci., 30, 985–998, 1982.ADSCrossRefGoogle Scholar
  50. Vorobjev, V. G., G. Gustafsson, G. V. Starkov, Y. I. Feldstein and N. F. Shevnina, Dynamics of day and night aurora during substorms, Planet. Space Sci., 23, 269–278, 1975.ADSCrossRefGoogle Scholar
  51. Willis, D. M., M. Lockwood, S. W. H. Cowley, A. P. van Eyken, B. J. I. Bromage, H. Rishbeth, P. R. Smith and S. R. Crothers, A survey of simultaneous observations of the high-latitude ionosphere and interplanetary magnetic field with EISCAT and AMPTE-UKS, J. Atmos. Terr. Phys., 48, 987–1008, 1986.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Takasi OGUTI
    • 1
  1. 1.Geophysics Research LaboratoryUniversity of TokyoTokyoJapan

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