【作者】 刘长发；

【Author】 C.F.Liu (Institute of Geophysics,Chinese Academy of Sciences)

【机构】 中国科学院地球物理研究所；

【摘要】 本文研究了中国6个台11年地磁S_q(H)日变化.在中国S_q换向带南北地磁台站的日变化曲线是近似反向对称的.它是由于周日谐波分量引起的.位于S_q焦点附近的佘山台S_q(H)的振幅是很小的,与太阳活动相关性较差.S_q焦点冬季向高纬移动,夏季向低纬移动.它的周年变化范围从地磁纬度19.7°到32.4°N.更多还原

【Abstract】 Investigation on the S_q(H) geomagnetic daily variations are carried out by using data of 11 years at 6 stations in China.The geomagnetic daily variational curves in approximately inverse symmetry at the Chinese stations.These are due to the change of the diurnal harmonic wave. The amplitude of S_q(H) of Sheshan station which is near the focus of S_q is small and the correlation with solar activity is not well.The annual change of the focus of S_q has a range from 19.7°to 32.4°N(geomag.lat.).更多还原