IDENTIFICATION OF SOLAR-TERRESTRIAL EVENTS CONNECTED WITH GEOMAGNETIC STORMS FROM THE LATE APRIL TO THE EARLY MAY IN 1998
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摘要: 综合运用SOHO/LASCO、SOHO/EIT关于CME的观测结果和WIND飞船关于太阳风的观测记录,识别了1998年4月下旬至5月上旬发生的磁暴的CME源,分析了与5月初强磁暴群相联系的日地事件.结果表明,所用日地扰动事件关系认证的方法是可行的.本文就上述日地事件所涉及的磁暴群与活动区的关系、CME地磁效应的日面东西不对称性以及磁云与高速流的作用等问题进行了讨论.Abstract: Analyzing the CME observations of SOHO/LASCO and SOHO/EIT, as well as solar wind observations of the WIND spacecraft, we identified the CME sources that led to the geomagnetic storms occurring from the late April to early May in 1998. Also we analyzed the solar-terrestrial events associated with intense geomagnetic storms in early May. The results show that the identification method of solar terrestrial events connected with geomagnetic storms we employed is feasible. In addition, we discussed the relationship between these geomagnetic storms and active regions, the east-west asymmetrical effect and the interactions between magnetic clouds and high-speed streams, etc.
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Key words:
- CME /
- Geomagnetic storm
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