摘要
本文根据国际地磁参考场系数,计算了中国地区1945～1990年代2~0×2~0网格地磁正常场值,并绘出了相应的正常场等值线图和等变线图,对其变化规律进行了分析.
In this paper, a calculation of normal magnetic field in China by 29× 20 grids is made from the coefficient of international geomagnetic reference field during 1945-1990. A contour map and iso-grade map of relevant normal field are compiled, and its variation regularities are also analysed.
出处
《华南地震》
1993年第2期7-14,共8页
South China Journal of Seismology
基金
地震科学联合基金资助项目(88042)
关键词
地磁正常场
国际地磁参考场
地磁场模型:中国地区
International geomagnetic reference field
Geodetic coordinate system
Geocentric coordinate system
China contioent
Geomagnetic field model
