Skip to main content

International Geomagnetic Reference Field—the eighth generation


The eighth generation of the International Geomagnetic Reference Field (IGRF) was adopted in 1999 by the International Association of Geomagnetism and Aeronomy (IAGA) Division V, Working Group 8. This differs from the previous generation by the addition of the IGRF 2000 which comprises a main-field model for the epoch 2000.0 and a predictive secular-variation model for 2000.0–2005.0. This paper lists the IGRF coefficients and includes contour maps computed using IGRF 2000.


  1. Barton, C. E., International Geomagnetic Reference Field: the seventh gen eration, J. Geomag. Geoelectr., 49, 123–148, 1997.

    Article  Google Scholar 

  2. Chapman, S. and J. Bartels, Geomagnetism, 2 vols., pp. 1049, Oxford University Press, London, 1940.

    Google Scholar 

  3. Golovkov, V. P., T. N. Bondar, and I. A. Burdelnaya, Spatial-temporal modeling of the geomagnetic field for 1980–2000 period and a candidate IGRF secular-variation model for 2000–2005, Earth Planets Space, 52, this issue, 1125–1135, 2000.

    Article  Google Scholar 

  4. International Astronomical Union, Proc. 12th General Assembly, Hamburg, 12B, 594–595, 1966.

    Google Scholar 

  5. Langel, R. A., Main field, in Geomagnetism, edited by J. A. Jacobs, pp. 249–512, vol. I, Academic Press, London, 1987.

    Google Scholar 

  6. Langlais, B. and M. Mandea, An IGRF candidate main geomagnetic field model for epoch 2000 and a secular variation model for 2000–2005, Earth Planets Space, 52, this issue, 1137–1148, 2000.

    Article  Google Scholar 

  7. Lowes, F. J., The working of the IGRF 2000 Task Force, Earth Planets Space, 52, this issue, 1171–1174, 2000.

    Article  Google Scholar 

  8. Lowes, F. J., T. Bondar, V. P. Golovkov, B. Langlais, S. Macmillan, and M. Mandea, Evaluation of the candidate Main Field model for IGRF 2000 derived from preliminary Ørsted data, Earth Planets Space, 52, this issue, 1183–1186, 2000.

    Article  Google Scholar 

  9. Macmillan, S., An evaluation of candidate geomagnetic field models for IGRF 2000, Earth Planets Space, 52, this issue, 1163–1165, 2000.

    Article  Google Scholar 

  10. Macmillan, S. and J. M. Quinn, The 2000 revision of the joint UK/US geomagnetic field models and an IGRF 2000 candidate model, Earth Planets Space, 52, this issue, 1149–1162, 2000.

    Article  Google Scholar 

  11. Mandea, M. and B. Langlais, Use of Ørsted scalar data in evaluating the pre-Ørsted main field candidate models for the IGRF 2000, Earth Planets Space, 52, this issue, 1167–1170, 2000.

  12. Merrill, R., M. W. McElhinny, and P. L. McFadden, The magnetic field of the Earth, Paleomagnetism, the core, and the deep mantle, 531 pp., Academic Press, San Diego, 1996.

    Google Scholar 

  13. Olsen, N., T. J. Sabaka, and L. Tøffner-Clausen, Determination of the IGRF 2000 model, Earth Planets Space, 52, this issue, 1175–1182, 2000.

    Article  Google Scholar 

  14. Wessel, P. and W. H. F. Smith, Free software helps map and display data, EOS Trans. Am. Geophys. Union, 72, 441–448, 1991.

    Article  Google Scholar 

Download references

Author information



Corresponding author

Correspondence to Mioara Mandea.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Mandea, M., Macmillan, S. International Geomagnetic Reference Field—the eighth generation. Earth Planet Sp 52, 1119–1124 (2000).

Download citation


  • Secular Variation
  • Earth Planet Space
  • International Geomagnetic Reference Field
  • British Geological Survey
  • International Geomagnetic Reference