International Geomagnetic Reference Field: the eleventh generation
- Research areas:
- Year:
- 2010
- Authors:
-
- Christopher C. Finlay
- Stefan Maus
- Ciaran Beggan
- Tatiana Bondar
- Aude Chambodut
- T. A. Chernova
- Arnaud Chulliat
- Vadim P. Golovkov
- Brian Hamilton
- Mohamed Hamoudi
- Richard Holme
- Gauthier Hulot
- Weijia Kuang
- Benoit Langlais
- Vincent Lesur
- Frank J. Lowes
- Hermann Luehr
- Susan Macmillan
- Mioara Mandea
- Susan McLean
- Chandrasekharan Manoj
- Michel Menvielle
- I. Michaelis
- Nils Olsen
- J. Rauberg
- Martin Rother
- Terence J. Sabaka
- Andrew Tangborn
- Lars Tøffner-Clausen
- Erwan Thébault
- Alan W. P. Thomson
- Ingo Wardinski
- Z. Wei
- Tatiana Zvereva
- Journal:
- Geophys. J. Int.
- Volume:
- 183
- BibTex:
- Abstract:
- 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 de~nitive main ~eld model for
epoch 2005.0, a main ~eld model for epoch 2010.0, and a linear predictive secular variation
model for 2010.0~2015.0. In this note the equations de~ning the IGRF model are provided
along with the spherical harmonic coef~cients for the eleventh generation. Maps of the mag-
netic 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.