International Geomagnetic Reference Field : The seventh generation
International Geomagnetic Reference Field : The seventh generation
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DOI：
10.5636/jgg.49.123
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发表时间：
1997-02
期刊：
影响因子：
--
通讯作者：
C. Barton
中科院分区：
文献类型：
--
作者：
C. Barton
国际地磁和航空学会在1995年7月国际大地测量学和地球物理联合会第21届大会上通过了国际地磁参考场的第七代修订本。采用的新球谐模型是基于美国宇航局戈达德太空飞行中心、俄罗斯地磁、电离层和无线电波传播研究所（izmiran）以及美国海军海洋学办公室和英国地质调查局联合提交的候选模型的加权平均值。修订后的IGRF指定了1900年至2000年的地球主要磁场，并宣布1945年至1990年是确定的。本文列出了IGRF系数，描述了新的IGRF模型的推导，并检查了本世纪IGRF的准确性，连续性和行为方面。
A seventh-generation revision of the International Geomagnetic Reference Field (IGRF) was adopted by the International Association of Geomagnetism and Aeronomy (IAGA) at the XXI General Assembly of the International Union of Geodesy and Geophysics in July 1995. The new spherical harmonic models adopted are based on weighted averages of candidate models submitted by NASA's Goddard Space Flight Center, the Russian Institute of Terrestrial Magnetism, Ionospheric, and Radio Wave Propagation-IZMIRAN, and jointly by the US Naval Oceanographic Office and the British Geological Survey. The revised IGRF specifies the Earth's main field from 1900 to 2000 and is declared to be definitive from 1945 to 1990. This paper lists the IGRF coefficients, describes the derivation of the new IGRF models, and examines aspects of the IGRF's accuracy, continuity, and behaviour during this century.