International Geomagnetic Reference Field: the eleventh generation

Authors

• C. C. Finlay, Institut für GeophysikFollow
• S. Maus, University of Colorado
• C. D. Beggan, British Geological Survey
• T. N. Bondar, Pushkov Institute of Terrestrial Magnetism
• A. Chambodut, Institut de Physique du Globe de Strasbourg
• T. A. Chernova, Pushkov Institute of Terrestrial Magnetism
• A. Chulliat, Institut de Physique du Globe de Paris
• V. P. Golovkov, Pushkov Institute of Terrestrial Magnetism
• B. Hamilton, British Geological Survey
• M. Hamoudi, GFZ German Research Centre for Geosciences
• R. Holme, University of Liverpool
• G. Hulot, Institut de Physique du Globe de Paris
• W. Kuang, NASA GSFC
• B. Langlais, Universite de Nantes
• V. Lesur, GFZ German Research Centre for Geosciences
• F. J. Lowes, University of Newcastle
• H. Lühr, GFZ German Research Centre for Geosciences
• S. Macmillan, British Geological Survey
• M. Mandea, Université Paris Diderot
• S. McLean, University of Colorado
• C. Manoj, University of Colorado
• M. Menvielle, Université Versailles St-Quentin
• I. Michaelis, GFZ German Research Centre for Geosciences
• N. Olsen, DTU Space
• J. Rauberg, GFZ German Research Centre for Geosciences
• M. Rother, GFZ German Research Centre for Geosciences
• T. J. Sabaka, NASA GSFC
• A. Tangborn, UMBC
• L. Tøffner-Clausen, DTU Space
• E. Thébault, Institut de Physique du Globe de Paris
• A. W. P. Thomson, British Geological Survey
• I. Wardinski, GFZ German Research Centre for Geosciences
• Z. Wei, UMBC
• T. I. Zvereva, Pushkov Institute of Terrestrial Magnetism

Date of this Version

2010

Comments

Published in Geophys. J. Int. (2010) 183, 1216–1230; doi: 10.1111/j.1365-246X.2010.04804.x

Abstract

The eleventh generation of the International Geomagnetic Reference Field (IGRF)was adopted in December 2009 by the International Association of Geomagnetism and AeronomyWorking 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.