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太阳风速度及日球电流片对CME渡越时间的影响

罗天 解妍琼

罗天, 解妍琼. 太阳风速度及日球电流片对CME渡越时间的影响[J]. 空间科学学报, 2013, 33(4): 381-386. doi: 10.11728/cjss2013.04.381
引用本文: 罗天, 解妍琼. 太阳风速度及日球电流片对CME渡越时间的影响[J]. 空间科学学报, 2013, 33(4): 381-386. doi: 10.11728/cjss2013.04.381
LUO Tian, XIE Yanqiong. Influence of Solar Wind Speed and Heliospheric Current Sheet on the CMEs Transit Time[J]. Journal of Space Science, 2013, 33(4): 381-386. doi: 10.11728/cjss2013.04.381
Citation: LUO Tian, XIE Yanqiong. Influence of Solar Wind Speed and Heliospheric Current Sheet on the CMEs Transit Time[J]. Journal of Space Science, 2013, 33(4): 381-386. doi: 10.11728/cjss2013.04.381

太阳风速度及日球电流片对CME渡越时间的影响

doi: 10.11728/cjss2013.04.381
基金项目: 国家自然科学基金项目资助(41231068)
详细信息
    作者简介:

    解妍琼, yqxie@spaceweather.ac.cn

  • 中图分类号: P353

Influence of Solar Wind Speed and Heliospheric Current Sheet on the CMEs Transit Time

  • 摘要: 基于1996-2005年88个引起重大地磁暴的CME(日冕物质抛射)事件、1996-2000年的47个CME事件以及1997-2002年的29个全晕状CME事件,结合ACE卫星在1AU处的太阳风和行星际磁场观测资料以及Wilcox Solar Observatory(WSO)天文台的太阳光球层磁图,分析了背景太阳风速度和日球电流片对CME到达1AU处渡越时间预报误差的影响.结果表明,背景太阳风速度与CME渡越时间误差并没有明显的相关性,在考虑了磁云通量管轴相对黄道面夹角的影响后相关性依然不明显.然而日球电流片对CME渡越时间却有明显的影响,对于初速度较小的异侧CME事件,其渡越时间大于同侧事件;而对于具有较大初速度的CME事件,异侧事件的渡越时间明显小于同侧事件.研究结果表明,CME与太阳风以及日球电流片的相互作用并不是简单的对流相互作用,造成高速CME异侧事件快于同侧事件到达地球的因素非常复杂,有待深入研究.

     

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出版历程
  • 收稿日期:  2012-04-18
  • 修回日期:  2013-05-25
  • 刊出日期:  2013-07-15

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