摘要
本文论述了长春地磁台天文方位角的测量方法、原理及测量结果,同时做了测量精度估计,通过计算方位角理论最大误差为3.7″,实际观测最大误差为2.5″,能满足地磁偏角6″的精度要求。
We discussed the survey methods, theory and survey results of the astronomical azimuth at Changchun geomagnetism station.Meanwhile the precision estimation was made. The maximal error in theory is 3.7″ by calculating the azimuth. But the actual error is 2.5″, which can meet the precision requirement of geomagnetism declination 6″.
出处
《东北地震研究》
2009年第2期67-70,共4页
Seismological Research of Northeast China
关键词
长春地磁台
天文方位角测量
精度估计
Changchun geomagnetic station
the survey of astronomical azimuth
precise estimation
