摘要
讨论磁方位角与真方位角的关系。基于地磁理论,推导在已知大地经度、纬度和高程时,磁偏角及磁倾角的计算公式。并对中国经度、纬度范围内所对应的磁偏角和磁倾角进行计算,分析磁偏角和磁倾角随经度、纬度和高程的变化规律。
Magnetic declination is the angle between magnetic north and true north, the angle will change with the variation of latitude, longitude and height. The relation between magnetic meridian azimuth and true azimuth is discussed, and the calculation formula of magnetic declination and geomagentic inclination are deduced when the latitude,longitude and height are known. At the same time,the magnetic declination and geomagentic inclination in China are calculated, and their variation rules with the variation of latitude, longitude and height are analyzed.
出处
《大地测量与地球动力学》
CSCD
北大核心
2009年第3期88-90,94,共4页
Journal of Geodesy and Geodynamics
关键词
磁偏角
磁倾角
真方位角
大地坐标
球谐函数
magnetic declination
geomagentic inclination
true azimuth
geodetic coordinate
spherical harmonic function
