摘要
从飞船的观测结果、磁云形态及演化的理论模型、磁流体动力学(MHD)数值模拟、激波对磁云的作用、多重磁云等5个方面,评述了行星际磁云的研究成果及最新进展。在太阳峰年,大部分的非重现性地磁暴都与磁云有关。最近的研究表明,压缩后的磁云往往能产生更大的地磁效应。深入研究磁云对空间天气研究有着特殊的价值,特别是对提高大磁暴的预报水平有着重要帮助。
This paper deals with the research of magnetic cloud (MC) on five aspects including observations, theoretical models, MHD simulations, interaction of shock with preceding MC, and multiple magnetic clouds. During the solar maximum, a majority of non-recurrent geomagnetic storms are related to magnetic clouds. Specially, the recent research suggests that the compressed magnetic clouds might be able to cause much larger geomagnetic storms. Thus, further understanding of magnetic clouds is valuable for space weather research and helpful to improve the prediction level of great geomagnetic storms.
出处
《天文学进展》
CSCD
北大核心
2003年第4期301-317,共17页
Progress In Astronomy
基金
国家重点基础研究发展规划项目(G2000078405)
国家自然科学基金(49834030)
关键词
天体物理学
磁云
综述
行星际
astrophysics-magnetic cloud-review-interplanetary space
