【摘要】 利用北京国家地球观象台1957—2013年的地磁连续观测资料,对北京地磁场七个分量的均值和年变率进行分析,总结出地磁场七个要素不同的变化特征。此项工作对了解和应用北京地震台地磁的资料有一定的意义。更多还原

【Abstract】 According to the geomagnetic data recorded by Beijing National Earth observatory from 1957 to 2013, the annual mean and annual rate were analyzed, meanwhile, the changing characteristics of seven secular variations component of Beijing geomagnetic field were summarized. The results can provide valuable insight into the understanding and application of geomagnetic data measured by Beijing National observatory.更多还原