Advertisement

A Study of Auroral Displays Photographed from the DMSP-2 and ISIS-2 Satellites

  • S.-I. Akasofu

Abstract

Recent studies of auroral photographs taken from the DMSP and ISIS-2 satellites are briefly summarized. A particular emphasis is made in describing:
  1. (1)

    New large-scale morphological features, such as the distinction between discrete and diffuse auroras.

     
  2. (2)

    The roles of the north-south component of the interplanetary magnetic field on large-scale auroral dynamics, in particular the finding of an important quantity S which controls both the occurrence of magnetospheric substorms and their intensity.

     
  3. (3)

    The relationships between the auroral electrojet and large-scale auroral features.

     

Keywords

Solar Wind Interplanetary Magnetic Field Auroral Oval Auroral Electrojet Magnetospheric Substorms 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Akasofu, S.-I., A study of auroral displays photographed from the DMSP-2 satellite and from the Alaska meridian chain of stations, Space Sci. Rev., 16, 617–725, 1974b.ADSCrossRefGoogle Scholar
  2. Akasofu, S.-I., The aurora and the magnetosphere: the Chapman memorial lecture, Planet. Space Sci., 22, 885, 1974a.ADSCrossRefGoogle Scholar
  3. Akasofu, S.-I., The roles of the north-south component of the interplanetary magnetic field on large-scale auroral dynamics observed by the DMSP satellite, Nature (in press), 1975b.Google Scholar
  4. Akasofu, S.-I., The roles of the north-south component of the interplanetary magnetic field on large-scale auroral dynamics observed by the DMSP satellite, Planet. Space Sci. (in press), 1975c.Google Scholar
  5. Akasofu, S.-I., The solar wind-magnetosphere dynamo and the magneto- spheric substorm, Planet. Space Sci. (in press), 1975c.Google Scholar
  6. Akasofu, S.-I., P. D. Perreault, F. Yasuhara and C.-I. Meng, Auroral substorms and the interplanetary magnetic field, J. Geophys. Res., 78, 7490, 1973.ADSCrossRefGoogle Scholar
  7. Akasofu, S.-I., F. Yasuhara and K. Kawasaki, A note on the DP-2 variation, Planet. Space Sci., 21, 2232, 1973.ADSCrossRefGoogle Scholar
  8. Armstrong, J. C., S.-I. Akasofu and G. Rostoker, A comparison of satellite observations of Birkeland currents with ground observations of visible auroras and ionospheric currents, J. Geophys. Res., 80, 575, 1975.ADSCrossRefGoogle Scholar
  9. Gonzalez, W. D. and F. S. Mozer, A quantitative model for the potential resulting from reconnection with an arbitrary interplanetary magnetic field, J. Geophys. Res., 79, 4186, 1974.ADSCrossRefGoogle Scholar
  10. Heppner, J. P., Polar cap electric field distributions related to the interplanetary magnetic field direction, J. Geophys. Res., 77, 4877, 1972.ADSCrossRefGoogle Scholar
  11. Kamide, Y. and S.-I. Akasofu, The auroral electrojet and global auroral features, J. Geophys. Res. (in press), 1975.Google Scholar
  12. Lui, A.T.Y. and C. D. Anger, A uniform belt of diffuse auroralemission seen by the ISIS-2 scanning photometer, Planet. Space Sci., 21, 799, 1973.ADSCrossRefGoogle Scholar
  13. Lui, A.T.Y., C. D. Anger, D. Venkatesan, W. Sawchuk and S.-I. Akasofu, The topology of the auroral oval as seen by the ISIS-2 scanning photometer, J. Geophys. Res. (in press), 1975.Google Scholar
  14. McPherron, R. L., C. T. Russell and M. P. Aubry, Satellite studies of magnetospheric substorms on August 15, 1968 9. Phenomenological model for substorms, J. Geophys. Res., 78, 3131, 1973.ADSCrossRefGoogle Scholar
  15. Meng, C.-I. and K. A. Anderson, Magnetic field configuration in the magnetotail near 60R, J. Geophys. Res., 79, 5143, 1974.ADSCrossRefGoogle Scholar
  16. Nishida, A., Geomagnetic DP-2 flucuations and associated magneto- spheric phenomena, J. Geophys. Res., 73, 1795, 1968.ADSCrossRefGoogle Scholar
  17. Snyder, A. L., Jr., and S.-I. Akasofu, Major auroral substorm features in the dark sector by a USAF DMSP satellite, Planet. Space Sci., 22, 1511, 1974.ADSCrossRefGoogle Scholar
  18. Svalgaard, L., Polar cap magnetic variations and their relationship with the interplanetary magnetic sector structure, J. Geophys. Res., 78, 2064, 1973.ADSCrossRefGoogle Scholar
  19. Yasuhara, F., Y. Kamide and S.-I. Akasofu, Field-aligned and ionospheric currents, Planet. Space Sci. (submitted), 1975.Google Scholar

Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • S.-I. Akasofu
    • 1
  1. 1.Geophysical InstituteUniversity of Alaska FairbanksUSA

Personalised recommendations