CAJ | 학술논문

根据SOHO飞船上的LASCO和EIT探测器和GOES卫星的关于太阳活动的观测资料以及ACE和Wind飞船在地球轨道附近关于太阳风等离子体和行星际磁场的观测数据,分析了日冕物质抛射(CME)、行星际磁云和地磁暴的相关性.包括具有地磁效应的晕状CME的日面源区位置分布,日冕物质抛射的中等周期分析,产生地磁暴的行星际参数的阈值等等.作为行星际复杂抛射的一种,首次提出了多重磁云的概念.通过分析观测事例,总结出了多重磁云的一些观测特征,并认为其具有潜在的强大的地磁效应.此外,利用观测资料,研究了激波进入磁云并引起地磁暴的现象.通过建立简单的理论模型,初步分析了激波在穿越磁云的过程中,所能引起的地磁暴的强度的变化.
근거SOHO비선상적LASCO화EIT탐측기화GOES위성적관우태양활동적관측자료이급ACE화Wind비선재지구궤도부근관우태양풍등리자체화행성제자장적관측수거,분석료일면물질포사(CME)、행성제자운화지자폭적상관성.포괄구유지자효응적훈상CME적일면원구위치분포,일면물질포사적중등주기분석,산생지자폭적행성제삼수적역치등등.작위행성제복잡포사적일충,수차제출료다중자운적개념.통과분석관측사례,총결출료다중자운적일사관측특정,병인위기구유잠재적강대적지자효응.차외,이용관측자료,연구료격파진입자운병인기지자폭적현상.통과건립간단적이론모형,초보분석료격파재천월자운적과정중,소능인기적지자폭적강도적변화.
The relationships between the coronal mass ejections (CMEs), interplanetary disturbances and geomagnetic storms are studied, involving the solar source distribution of geoeffective halo CMEs, the periodicity of CMEs, X-ray flares and geomagnetic disturbances, the threshold of interplanetary parameters in causing geomagnetic storms, etc. As a kind of interplanetary complex structure, multiple magnetic cloud (Multi-MC) is proposed for the first time, which probably has strong geoeffectiveness.Based on the observations, some primary characteristics of Multi-MC are summarized. Moreover, the phenomenon of a shock advancing into a preceding magnetic cloud has been investigated as well as its potential geoeffectiveness. A simple theoretical model is developed to estimate the intensity of geomagnetic storm when a shock is entering a preceding cloud.