摘要
采用全球地磁场模型EMM2017计算得到总磁场强度异常(ΔT)与磁力异常矢量(Ta)在主磁场方向的投影分量(T_(ap))差异的全球分布,分析该差异的幅值大小、空间分布特征与影响因素,为构建与应用全球岩石圈磁场模型提供参考资料。
The global geomagnetic field model EMM2017 is used to calculate the global distribution of the difference between the total magnetic field intensity anomaly(ΔT) and the projection component(T_(ap)) of the magnetic anomaly vector(Ta) in the direction of the main magnetic field, and the amplitude, spatial distribution characteristics and influencing factors of the difference are analyzed. This study can provide reference for the construction and application of the global lithospheric magnetic field model.
作者
陈康
胡正旺
杜劲松
CHEN Kang;HU Zhengwang;DU Jinsong(The 7th Geological Team,Guangxi Zhuang Autonomous Region,,Liuzhou 545100,China;Hubei Subsurface Multi-Scale Imaging Key Laboratory,Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China;State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2021年第11期1141-1145,1151,共6页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41604060)
地质过程与矿产资源国家重点实验室自主研究课题(MSFGPMR01-4)。
关键词
全球地磁场模型
球谐分析
总磁场强度异常(ΔT)
磁力异常分量(Tap)
岩石圈磁场
global geomagnetic field model
spherical harmonic analysis
total magnetic intensity anomaly(ΔT)
magnetic anomaly component(T_(ap))
lithospheric magnetic field
