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高低纬地区电离层扩展F暴时特性比较研究

  • [设施]:子午工程
  • [期刊/会议名称]:空间物理
  • [摘要]:Contrastive study of Spread-F between different latitudes of ionosphere is an important method to investigate ionospheric disturbance propagation.In this paper,data from three DPS-4 digisondes located at low and high latitude regions were used to study the ionospheric Spread-F properties during the six storm times.The results show that,the observed types of Spread-F over high and low latitudes are not exactly the same.And the start time of Spread-F will be later if the latitude of the station is lower.It implies that propagation of the ionospheric irregularities which caused the Spread-F is from high latitude to low latitude ionosphere. Abstract:不同纬度地区电离层扩展F的对比分析是研究电离层扰动传播的一个重要方法。本文利用三个台站六个磁暴期间的扩展F数据,对高低纬地区电离层扩展F暴时特性进行了对比研究。结果表明,高低纬地区观测到的扩展F类型不完全相同,并且扩展F的起始时刻随着纬度降低而推迟,这表明产生扩展F的电离层扰动是从高纬向低纬地区传播的。
  • [发表日期]:2011
  • [第一作者]:陶伟
  • [第一作者单位]:中国科学院国家空间科学中心
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  • [论文类型]:会议
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  • [关键词]:high and low latitude ionosphere; spread-F; properties during storm; propagation of disturbance
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