摘要
根据卫星磁异常(△X、△Y、△Z)的球冠谐和模型和地磁场的球谐模型,得到了卫星总强度磁异常(△F)的三维模型、计算出中国及邻近地区不同高度(h=0、100、200、300、400、500km)的卫星磁异常,绘制出相应高度的总强度磁异常分布图.讨论和分析了卫星总强度磁异常的分布特征,以及卫星磁异常随高度的变化.
Based on the spherical cap harmonic models of satellite magnetic anomaly (ΔX, ΔY, ΔZ) and IGRF models, the three dimensional model of the total intensity magnetic anomaly (ΔF) was derived. The satellite magnetic anomaly at different altitude (h=0, 100, 200, 300, 400, 500km) was calculated, and the satellite magnetic anomaly charts at corresponding altitude were constructed. The distribution of the total intensity anomaly and the variation with altitude of satellite magnetic anomaly were analysed and discussed.
出处
《地震地磁观测与研究》
1993年第5期29-34,共6页
Seismological and Geomagnetic Observation and Research
关键词
卫星
磁异常
三维结构
地球磁场
satellite magnetic anomaly
spherical cap harmonic analysis
international geomagnetic reference field
three dimensional structure
