摘要
根据我国低纬地区的台站资料，分析了地磁场Ｚ分量的静日变化特征，得到的主要结果是：①日变幅随季节和太阳黑子数的变化而变化；②低点出现时间大约在地方时１２时左右，并随季节有所变化；③最大值出现时间大约在地方时６时左右，在赤道电射流影响区其受季节的影响较大。
In this paper,the authors analyse quiet-day geomagnetic variation characteristic ofvertical component Z of geomagnetic field at low latitudes of china. The resuIts show:(1)daily ranges vary with different season and sunspot number:(2)lowest point timeappears at about twelve o'clocd of locaI time,and it varys with different season;(3)high-est point time appears at about six o'clock of locaI time,and it varvs obviously with dif-ferent season at influence area of equatorial electrojet current。
出处
《地震地磁观测与研究》
1995年第2期19-23,共5页
Seismological and Geomagnetic Observation and Research
关键词
地磁场
日变幅
黑子数
低纬地区
Z分量
geomagnetic field,IocaI time,dally ranges,sunspot numher,equatorial elec- trojet current
