International Geomagnetic Reference Field: the 12th generation - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Earth Planets and Space Year : 2015

International Geomagnetic Reference Field: the 12th generation

Nicolas Gillet
Gauthier Hulot
Chandrasekharan C Manoj
  • Function : Author
Stefan Maus
  • Function : Author

Abstract

The 12th generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2014 by the Working Group V-MOD appointed by the International Association of Geomagnetism and Aeronomy (IAGA). It updates the previous IGRF generation with a definitive main field model for epoch 2010.0, a main field model for epoch 2015.0, and a linear annual predictive secular variation model for 2015.0-2020.0. Here, we present the equations defining the IGRF model, provide the spherical harmonic coefficients, and provide maps of the magnetic declination, inclination, and total intensity for epoch 2015.0 and their predicted rates of change for 2015.0-2020.0. We also update the magnetic pole positions and discuss briefly the latest changes and possible future trends of the Earth's magnetic field.
Fichier principal
Vignette du fichier
thebault-eps-2015-67.pdf (3.87 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

insu-01412375 , version 1 (08-12-2016)

Identifiers

Cite

Erwan Thébault, Christopher C Finlay, Ciarán D Beggan, Patrick Alken, Julien J Aubert, et al.. International Geomagnetic Reference Field: the 12th generation. Earth Planets and Space, 2015, 67, pp.79. ⟨10.1186/s40623-015-0228-9⟩. ⟨insu-01412375⟩
1380 View
394 Download

Altmetric

Share

Gmail Facebook X LinkedIn More