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Astrophysics and Space Science

, Volume 230, Issue 1–2, pp 439–456 | Cite as

The role of the Hermanus Magnetic Observatory in geomagnetic field research

  • Peter R. Sutcliffe
Article
  • 30 Downloads

Abstract

Geomagnetic field research carried out at the Hermanus Magnetic Observatory over the past decade is reviewed. An important aspect of this research has been the study of geomagnetic field variations, with particular emphasis on ULF geomagnetic pulsations. Features of geomagnetic pulsations which are unique to low latitude locations have been investigated, such as the cavity mode nature of low latitude Pi 2 pulsations and the role played by ionosphericO+ ions in the field line resonances responsible for Pc 3 pulsations. A theoretical model has been developed which is able to account for the observed relationships between geomagnetic pulsations and oscillations in the frequency of HF radio waves traversing ionospheric paths. Other facets of the research have been geomagnetic field modelling, aimed at improving the accuracy and resolution of regional geomagnetic field models, and the development of improved geomagnetic activity indices.

Key words

Geophysics geomagnetic field 

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References

  1. Bourdillon, A., Delloue, J. and Parent, J.: 1989,Radio Sci. 24, 183.Google Scholar
  2. Gledhill, J. A., Dore, I. S., Goertz, C. K., Haggard, R., Hughes, W. J., Scourfield, M. W. J., Smits, D. P., Stoker, P. H., Sutcliffe, P. R., Wakerley, P. A. and Walker, A. D. M.: 1987,J. Geophys. Res. 92, 2461.Google Scholar
  3. Hattingh, M.: 1988,Comput. Geosci. 14, 467.Google Scholar
  4. Hattingh, M., Loubser, L. and Nagtegaal, D.: 1989,Geophys. J. Int. 99, 533.Google Scholar
  5. Hattingh, S. K. F. and Sutcliffe, P. R.: 1987,J. Geophys. Res. 92, 12433.Google Scholar
  6. Kotzé, P. B.: 1992,J. Geomag. Geoelectr. 44, 855.Google Scholar
  7. Kotzé, P. B. and Barraclough, D. R.: 1995,Paper presented at IUGG General Assembly, Boulder, Colorado, July 1995. Google Scholar
  8. Lühr, H., Thürey, S. and Klöcker, N.: 1984,Geophys. Surv. 6, 305.Google Scholar
  9. Mravlag, E., Scourfield, M. W. J., Walker, A. D. M., Sutcliffe, P. R. and Nielsen, E.: 1991,J. Atmos. Terr. Phys. 53, 309.Google Scholar
  10. Nielsen, E.: 1982, inThe IMS Source Book: Guide to the International Magnetospheric Study Data Analysis, edited by C. T. Russell and D. J. Southwood, AGU, Washington, D.C., 213.Google Scholar
  11. Olson, J. V. and Rostoker, G.: 1975,Planet. Space Sci. 23, 1129.Google Scholar
  12. Poole, A. W. V. and Sutcliffe, P. R.: 1987,J. Atmos. Terr. Phys. 49, 231.Google Scholar
  13. Poole, A. W. V., Sutcliffe, P. R. and Walker, A. D. M.: 1988,J. Geophys. Res. 93, 14,656.Google Scholar
  14. Poulter, E. M., Allan, W., Bailey, G. J. and Moffett, R. J.: 1984,Planet. Space Sci. 32, 727.Google Scholar
  15. Rostoker, G., Akasofu, S.-I., Foster, J., Greenwald, R. A., Kamide, Y., Kawasaki, K., Lui, A. T. Y., McPherron, R. L. and Russell, C. T.: 1980,J. Geophys. Res. 85, 1663.Google Scholar
  16. Saito, T., Yumoto, K. and Koyama, Y.: 1976,Planet. Space Sci.. 24, 1025.Google Scholar
  17. Sastry, T. S., Sarma, Y. S., Sarma, S. V. S. and Sanker Narayan, P. V.: 1983,J. Atmos. Terr. Phys. 45, 733.Google Scholar
  18. Singer, H. J., Hughes, W. J., Fougere, P. F. and Knecht, D. J.: 1983,J. Geophys. Res. 88, 7029.Google Scholar
  19. Singer, H. J., Southwood, D. J., Walker, R. J. and Kivelson, M. G.: 1981,J. Geophys. Res. 86, 4589.Google Scholar
  20. Sutcliffe, P. R.: 1992,Planet. Space Sci. 40, 965.Google Scholar
  21. Sutcliffe, P. R.: 1994,J. Geomag. Geoelectr. 46, 1011.Google Scholar
  22. Sutcliffe, P. R.: 1995,Paper presented at IUGG General Assembly, Boulder, Colorado, July 1995. Google Scholar
  23. Sutcliffe, P. R. and Nielsen, E.: 1990,Geophys. Res. Lett. 17, 603.Google Scholar
  24. Sutcliffe, P. R. and Nielsen, E.: 1992,J. Geophys. Res. 97, 10,621.Google Scholar
  25. Sutcliffe, P. R. and Poole, A. W. V.: 1984,Geophys. Res. Lett. 11, 1172.Google Scholar
  26. Sutcliffe, P. R. and Poole, A. W. V.: 1989,J. Geophys. Res. 94, 13,505.Google Scholar
  27. Sutcliffe, P. R. and Poole, A. W. V.: 1990,Planet. Space Sci. 38, 1581.Google Scholar
  28. Sutcliffe, P. R. and Poole, A. W. V.: 1993,Solar Terrestrial Prediction -IV Proceedings of a Workshop at Ottawa, Canada, May 18–22, 1992, NOAA, Boulder, Colorado,3, 549.Google Scholar
  29. Sutcliffe, P. R. and Yumoto, K.: 1989,Geophys. Res. Lett. 16, 887.Google Scholar
  30. Sutcliffe, P. R. and Yumoto, K.: 1991,J. Geophys. Res. 96, 1543.Google Scholar
  31. Sutcliffe, P. R., Hattingh, S. K. F. and Boshoff, H. F. V.: 1987, it J. Geophys. Res.92, 2535.Google Scholar
  32. Watermann, J.: 1987,J. Geophys. 61, 39.Google Scholar
  33. Yumoto, K.: 1986,J. Geophys. 60, 79.Google Scholar

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Peter R. Sutcliffe
    • 1
  1. 1.Hermanus Magnetic ObservatoryCSIRHermanusSouth Africa

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