International Geomagnetic Reference Field: the eleventh generation

Details International Geomagnetic Reference Field: the eleventh generation International Geomagnetic Reference Field: the eleventh generation

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010geoji.183.1216f&link_type=abstract

Geophysical Journal International, Volume 183, Issue 3, pp. 1216-1230.

Astronomy and Astrophysics

Astronomy

27

Magnetic Field, Satellite Magnetics

Scientific paper

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.

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