International Geomagnetic Reference Field: the eleventh generation
International Geomagnetic Reference Field: the eleventh generation
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DOI：
10.1111/j.1365-246x.2010.04804.x
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发表时间：
2010-12-01
影响因子：
2.8
通讯作者：
Zvereva, T. I.
中科院分区：
文献类型：
--
作者：
Finlay, C. C.;Maus, S.;Zvereva, T. I.
国际地磁和大气学会第V-MOD工作组于2009年12月通过了第11代国际地磁参考场(IGRF)。它用2005.0历元的确定主场模型、2010.0历元的主场模型和2010.0-2015.0年的线性预测长期变化模型更新了上一代的IGRF。在本说明中，提供了定义IGRF模型的方程以及第11代的球谐系数。给出了2010.0历元的磁偏角、倾角和总强度图以及它们在2010.0-2015.0年间的预测变化率。文中还研究了南大西洋异常和磁极位置的近期演化。
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.