Volume 38 Issue 1
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LI Zhaoyu, CHEN Tao. Statistical Study of Axial Orientations of Flux Transfer Events at the Magnetopauseormalsize[J]. Chinese Journal of Space Science, 2018, 38(1): 19-28. doi: 10.11728/cjss2018.01.019
Citation: LI Zhaoyu, CHEN Tao. Statistical Study of Axial Orientations of Flux Transfer Events at the Magnetopauseormalsize[J]. Chinese Journal of Space Science, 2018, 38(1): 19-28. doi: 10.11728/cjss2018.01.019
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Statistical Study of Axial Orientations of Flux Transfer Events at the Magnetopauseormalsize

doi: 10.11728/cjss2018.01.019 cstr: 32142.14.cjss2018.01.019

  • 1. State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190;

  • 2. University of Chinese Academy of Sciences, Beijing 100049

  • Received Date: 2016-12-16
  • Rev Recd Date: 2017-05-02
  • Publish Date: 2018-01-15
    Abstract
  • Flux Transfer Events (FTE) are related to magnetic reconnection. The typical characteristic of FTE is bipolar variation of the field component normal to the local magnetopause. There still exist different views about FTE global topology on the magnetopause. In different models, the FTE structures are either reconnected flux tubes, or magnetic flux ropes formed by multiple X-line reconnection or sheared magnetic loops formed by single X-line reconnection. To infer the global configuration of FTE, a statistical study of axial orientations of 505 FTE observed by Cluster during one dayside magnetopause crossing season is performed. The result shows that most FTE have north-south-orientated axes roughly aligned with the local magnetospheric flux tubes at both the low-and middle-latitude flanks. However, most FTE have dawn-dusk-orientated axes which are more consistent with the single or multiple X-line orientations at high latitude, especially near the cusp. These statistical features will improve our understanding about the global topology of FTE.

     

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