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极区顶部电离层离子上行的太阳活动依赖性研究

傅帅 蒋勇 赵凯 姜乙 苏昱丞

傅帅, 蒋勇, 赵凯, 姜乙, 苏昱丞. 极区顶部电离层离子上行的太阳活动依赖性研究[J]. 空间科学学报, 2017, 37(1): 28-38. doi: 10.11728/cjss2017.01.028
引用本文: 傅帅, 蒋勇, 赵凯, 姜乙, 苏昱丞. 极区顶部电离层离子上行的太阳活动依赖性研究[J]. 空间科学学报, 2017, 37(1): 28-38. doi: 10.11728/cjss2017.01.028
FU Shuai, JIANG Yong, ZHAO Kai, JIANG Yi, SU Yucheng. Solar Activity Dependence of Ionosphere Ion Upflow in the Polar Topside[J]. Journal of Space Science, 2017, 37(1): 28-38. doi: 10.11728/cjss2017.01.028
Citation: FU Shuai, JIANG Yong, ZHAO Kai, JIANG Yi, SU Yucheng. Solar Activity Dependence of Ionosphere Ion Upflow in the Polar Topside[J]. Journal of Space Science, 2017, 37(1): 28-38. doi: 10.11728/cjss2017.01.028

极区顶部电离层离子上行的太阳活动依赖性研究

doi: 10.11728/cjss2017.01.028
基金项目: 

国家自然科学基金项目资助(41174165)

详细信息
    通讯作者:

    傅帅,E-mail:fs_nuist@163.com

    蒋勇,E-mail:jiang@nuist.edu.cn

  • 中图分类号: P352

Solar Activity Dependence of Ionosphere Ion Upflow in the Polar Topside

  • 摘要: 利用第23太阳活动周DMSP F12,F13和F15卫星数据,分别对南北半球极区顶部电离层离子上行的太阳活动依赖性进行了研究.结果表明,南北半球上行事件对太阳活动的响应特征基本一致,即高(低)太阳活动时,离子上行通量以及上行数密度较大(小),但是上行速度及上行发生率较低(高).以南半球高纬为例,计算得到离子上行通量、数密度、速度及发生率在高低太阳活动条件下的比值分别约为2.26,3.35,0.71,0.51.对离子上行太阳活动依赖性的可能原因进行了分析.不同太阳活动水平下,光致电离及高能粒子沉降的差异会导致电离层离子密度的不同,而电离层离子密度的变化会改变离子elax-elax中性大气之间的碰撞频率,这是影响离子上行发生率的一个重要原因.

     

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出版历程
  • 收稿日期:  2015-11-02
  • 修回日期:  2016-05-11
  • 刊出日期:  2017-01-15

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