地磁太阳黑子周变化起源的讨论  

Discussion on the source problem of the geomagnetic solar cycle variations

作　　者：陈伯舫[1] 

机构地区：[1]中国地震局地球物理研究所,北京100081

出　　处：《华南地震》2001年第3期1-7,共7页South China Journal of Seismology

摘　　要：为了避开 6 0年代末和 70年代末Jerk (H)、Jerk (Z)的影响 ,分析了 1979～ 1998年西欧 4个台和 1979～ 1999年亚洲东部 6个台的H、Z资料 ,结果表明各台间H (或X)分量的太阳黑子周变化一致性较好。但Z分量的太阳黑子周变化显示出非常特别的现象 ,Z变化的相位随台站经度变化而变化 ,东亚地区的Z变化几乎与西欧地区的变化反向。因此 ,东亚地区的Z变化与H变化的关系不符合P01模式的假设 。In order to keep away the Jerk(H)'s and Jerk(Z)'s affection, the writer analyzed only the data of H and Z in the time interval of 1979～1999 for 6 observatories located in the eastern Asia region and the H,Z data in the time interval of 1979～1998 for 4 observatories located in European. The result in this paper indicates that the consistency of the solar cycle variations for the H (or X) components among these observatories appears to be good. However, the solar cycle variations for the Z components show a very strange feature. The phase of the Z variation changes according to the longitude where the observatory is located. Therefore, the Z variation for the eastern Asia region almost changed to be opposite phase compared to that for the European observatories. In other word, in the eastern Asia region the relation between the Z variation and the H variation does not satisfy the assumption of the P 0 1 mode. This 'longitude effect' of the phase change in the Z variations implies that the geomagnetic solar cycle variation can not be explained by an external source.

关 键 词：地磁太阳黑子周变化 源场起因 地磁Jerk 

分 类 号：P318.2+4[天文地球—固体地球物理学]