The Formation of Isolated Magnetic Flux Tubes on the Dayside Magnetopause

  • Raymond J. Walker
  • Tatsuki Ogino
Part of the NATO ASI Series book series (ASIC, volume 278)


We have studied dayside magnetic reconnection by using a three-dimensional global magnetohydrodynamic simulation of the interaction between the solar wind and the magnetosphere. We found that two types of magnetic flux tubes were formed which depend on the orientation of the interplanetary magnetic field (IMF). The dayside magnetic flux tubes occur only when the IMF has a southward component. When the IMF has a large B y component as well, a strongly twisted and localized magnetic flux tube similar to a magnetic flux rope forms at the magnetopause. When the IMF B y component is small, twin flux tubes appear at the dayside magnetopause. Both types of flux tubes are consistent with several observational features of flux transfer events and are generated by antiparallel magnetic reconnection.


Solar Wind Field Line Interplanetary Magnetic Field Flux Tube Flux Rope 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Berchem, J., and C. T. Russell, Flux transfer events on the magnetopause: Spatial distribution and controlling factors, J. Geophys. Res., 89, 6689, 1984.ADSCrossRefGoogle Scholar
  2. Elphic, R. C., and C. T. Russell, ISEE-1 and 2 magnetometer observations of the magnetopause, in Magnetospheric Boundary Layers p. 43, ESA Scientific and Technical Publications, Noordwijk, The Netherlands, 1979.Google Scholar
  3. Elphic, R. C., C. A. Cattell, K. Takahashi, S. J. Bame, and C. T. Russell, ISEE-1 and -2 observations of magnetic flux ropes in the magnetotail: FTE’s in the plasma sheet?, Geophys. Res. Lett., 13, 648, 1986.ADSCrossRefGoogle Scholar
  4. Fu, Z. F., and L. C. Lee, Simulation of multiple X lines in reconnection at the dayside magnetopause, Geophys. Res. Lett., 12,291,1985.ADSCrossRefGoogle Scholar
  5. Galeev, A. A., M. M. Kuznetsova, and L. M. Zeleny, Magnetopause stability threshold for patchy reconnection, Space Sci. Rev. ,44, 1, 1986.ADSCrossRefGoogle Scholar
  6. Haerendel, G., G. Paschmann, N. Sckopke, H. Rosenbauer, and P. C. Hedgecock, The frontside boundary layer of the magnetosphere and the problem of reconnection, J. Geo-phys. Res.,83, 3195, 1978.ADSCrossRefGoogle Scholar
  7. La Belle-Harmer, A. L., Z. F. Fu, and L. C. Lee, A mechanism for patchy reconnection at the dayside magnetopause, Geophys. Res. Lett., 15, 152, 1988.ADSCrossRefGoogle Scholar
  8. Lee, L. C., and Z. F. Fu, A theory of magnetic flux transfer at the Earth’s dayside magnetopause, Geophys. Res. Lett., 12, 105, 1985.ADSCrossRefGoogle Scholar
  9. Ogino, T., A three dimensional MHD simulation of the interaction of the solar wind with the Earth’s magnetosphere: The generation of field-aligned currents, J. Geophys. Res., 91, 6791, 1986.ADSCrossRefGoogle Scholar
  10. Ogino T., R. J. Walker, M. Ashour-Abdalla, and J. M. Dawson, An MHD simulation of By-dependent magnetospheric convection and field-aligned currents during northward IMF, J. Geophys. Res., 90, 10835, 1985.ADSCrossRefGoogle Scholar
  11. Ogino, T., R. J. Walker, M. Ashour-Abdalla and J. M. Dawson, An MHD simulation of the effects of the interplanetary magnetic field By component on the interaction of the solar wind with the Earth’s magnetosphere during southward IMF, J. Geophys. Res., 91, 10029, 1986.ADSCrossRefGoogle Scholar
  12. Ogino, T., R. J. Walker, and M. Ashour-Abdalla, A Magnetohydrodynamic simulation of the formation of magnetic flux tubes at the Earth’s day side magnetopause, Geophys. Res. Lett., (submitted), 1988.Google Scholar
  13. Rijnbeek, R. P., S. W. H. Cowley, D. J. Southwood, and C. T. Russell: A survey of dayside flux transfer events observed by ISEE-1 and -2 magnetometers, J. Geophys. Res., 89, 786, 1984.ADSCrossRefGoogle Scholar
  14. Russell C. T., and R. C. Elphic, Initial ISEE magnetometer results: Magnetopause observations, Space Sci. Rev.,22, 681, 1978.ADSCrossRefGoogle Scholar
  15. Russell, C. T. and R. C. Elphic, ISEE observations of flux transfer events at the dayside magnetopause, Geophys. Res. Lett., 6, 33, 1979.ADSCrossRefGoogle Scholar
  16. Sato, T., T. Shimada, M. Tanaka, T. Hayashi, and K. Watanabe, Formation of field twisting flux tubes on the magnetopause and solar wind particle entry into the magnetosphere, Geophys. Res. Lett., 13, 801, 1986.ADSCrossRefGoogle Scholar
  17. Saunders, M. A., C. T. Russell, and N. Sckopke, Flux transfer events: Scale size and interior structure, Geophys. Res. Lett., 11, 131, 1984.ADSCrossRefGoogle Scholar
  18. Scholer, M., Magnetic flux transfer at the magnetopause, Geophys. Res. Lett., 15,291,1988.ADSCrossRefGoogle Scholar
  19. Shi, Y., C. C. Wu, and L. C. Lee, A study of multiple X line reconnection at the dayside magnetopause, Geophys. Res. Lett., 15, 295, 1988.ADSCrossRefGoogle Scholar
  20. Sonnerup, B. U. Ö., On the stress balance in flux transfer events, J. Geophys. Res., 92, 8613, 1987.ADSCrossRefGoogle Scholar
  21. Southwood, D. J., C. J. Farrugia, and M. A. Saunders, What are flux transfer events?, Planet. Space Sci.,36, 503, 1988.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Raymond J. Walker
    • 1
  • Tatsuki Ogino
    • 2
  1. 1.Institute of Geophysics and Planetary PhysicsUniversity of California, Los AngelesLos AngelesUSA
  2. 2.Research Institute of AtmosphericsNagoya UniversityToyokawaJapan

Personalised recommendations