Volume 27 Issue 5
Sep.  2007
Turn off MathJax
Article Contents
ZHAN Liang, LIU Libo, WAN Weixing, ZHAO Biqiang. Morphology of Ionospheric Disturbances Over Kokubunji During Geomagnetic Disturbances[J]. Chinese Journal of Space Science, 2007, 27(5): 391-399. doi: 10.11728/cjss2007.05.391
Citation: ZHAN Liang, LIU Libo, WAN Weixing, ZHAO Biqiang. Morphology of Ionospheric Disturbances Over Kokubunji During Geomagnetic Disturbances[J]. Chinese Journal of Space Science, 2007, 27(5): 391-399. doi: 10.11728/cjss2007.05.391

Morphology of Ionospheric Disturbances Over Kokubunji During Geomagnetic Disturbances

doi: 10.11728/cjss2007.05.391 cstr: 32142.14.cjss2007.05.391
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2007-09-15
  • In this paper, with the observed critical frequencies of F2 layer at Kokubunji (139.5°E,35.5°N) during 1959 to 2004, the dependence of the variations of NmF2 on the geomagnetic activity, solar activity, season and local time are statistically investigated. The results show that there are more positive ionospheric storm effects than negative ones over KokuSunji. In summer, negative storm effects prevail during high solar activity, whereas positive storm effects are usually observed during low solar activity; in winter, positive storm effects dominate regardless of solar activity conditions; and in equinox, negative storm effects with smaller amplitude are often seen during high solar activity, and positive storm effects often take place during low solar activity conditions. The correlation analysis between the disturbance of NmF2 and ap index also illustrates the above-mentioned feature. Furthermore, our results show that there is a time delay of 12-15 hours between the ionospheric maximum negative disturbances and the maximum geomagnetic perturbation, and the time delay of the ionospheric positive disturbances are 3 and 10 hours, respectively. In addition, it is also found that under high geomagnetic activity conditions, positive disturbances are often seen in the evening, and negative disturbances in the morning.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article Views(2874) PDF Downloads(1383) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return