【摘要】 本文用典型事件和统计分析论证了行星际磁场北向分量触发地磁扰动的可能性.给出了行星际电场E_y分量对磁层大尺度对流电场E_M的耦合系数.从耦合方程出发讨论了磁层对太阳风作用的响应,证明磁层不是起半波整流器作用,从而表明经典的重联理论应有所修改.更多还原

【Abstract】 The possibility of triggering the geomagnetic disturbances by the northward Bz component of the IMF is discussed using some typical events and statistical analyses. The coupling coefficient of the IEF Ey component to the large scale magnetospheric convection electric field is given. The response of the magnetosphere to the solar wind effects is analysed from the coupling equation of these two fields. The results show that the magnetosphere does not act as the half-wave rectifier to the solar wind effects, hence the classical recon-nection scheme of the magnetosphere is proposed to be somewhat modified.更多还原