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研究了Ｐｏｌａｒ等对ＩＳＴＰ卫星观测的两个极光亚暴事件，此两事件与日冕物质抛射相关的太阳风压强微波到达地球有关．提出大阳风压强激波经过地球时，沿途冲击磁层顶激发磁流体快波，快Ａｌｆｖｅｎ波横越具有较高局地 Ａｌｆｖｅｎ速度的磁尾尾瓣，将压缩效应迅速传递到内磁层及等离子体片，在 １～２ｍｉｎ内建立起强越尾电流，进而触发磁层亚暴．
Studied two polar aurora events observed by Polar et al. For the ISTP satellite. These two events are related to the arrival of solar radiation on the Earth by the coronal mass ejection. It is proposed that when the large typhoon shock wave passes the Earth, the fast magnetic wave is excited at the top of the magnetosphere along the path. The fast Alfven wave traverses the tail tail of the magnet with higher local Alfven velocities and rapidly transmits the compression effect to the inner magnetic layer and the plasma Body film, in 1 ~ 2min to establish a strong over-tail current, and then trigger the magnetic sub-storm.