期刊
EARTH PLANETS AND SPACE
卷 67, 期 -, 页码 -出版社
SPRINGEROPEN
DOI: 10.1186/s40623-015-0228-9
关键词
Geomagnetism; Field modeling; IGRF
资金
- CHAMP mission by the German Aerospace Center (DLR)
- Federal Ministry of Education and Research
- Danish Government
- NASA
- ESA
- CNES
- DARA
- Thomas B. Thriges Foundation
- Centre National des Etudes Spatiales (CNES) within the context of the project of the 'Travaux preparatoires et exploitation de la mission Swarm'
- NSF
- French 'Agence Nationale de la Recherche' [ANR-11-BS56-011]
- Region Pays de Loire, France
- DFG [SPP 1488]
- NERC [bgs05003] Funding Source: UKRI
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.
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