International Geomagnetic Reference Field: The eleventh generation

Chris Finlay, S. Maus, C. D. Beggan, T. N. Bondar, A. Chambodut, T. A. Chernova, A. Chulliat, V. P. Golovkov, B. Hamilton, M. Hamoudi, R. Holme, G. Hulot, W. Kuang, B. Langlais, V. Lesur, F. J. Lowes, H. Lühr, S. Macmillan, M. Mandea, S. McLeanC. Manoj, M. Menvielle, I. Michaelis, Nils Olsen, J. Rauberg, M. Rother, T. J. Sabaka, A. Tangborn, Lars Tøffner-Clausen, E. Thébault, A. W. P. Thomson, I. Wardinski, Z. Wei, T. I. Zvereva

Research output: Contribution to journalJournal articleResearchpeer-review


The eleventh generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2009 by the International Association of Geomagnetism and Aeronomy Working Group V‐MOD. It updates the previous IGRF generation with a definitive main field model for epoch 2005.0, a main field model for epoch 2010.0, and a linear predictive secular variation model for 2010.0–2015.0. In this note the equations defining the IGRF model are provided along with the spherical harmonic coefficients for the eleventh generation. Maps of the magnetic declination, inclination and total intensity for epoch 2010.0 and their predicted rates of change for 2010.0–2015.0 are presented. The recent evolution of the South Atlantic Anomaly and magnetic pole positions are also examined.
Original languageEnglish
JournalGeophysical Journal International
Issue number3
Pages (from-to)1216-1230
Publication statusPublished - 2010


  • Magnetic field
  • Satellite magnetics

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