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• 日球层物理和太阳系探测 • Previous Articles     Next Articles

Earthward Convective Bursty Flows in the Center Plasma Sheet

Zhang Lingqian 1, Wang Jiye 2, Liu Zhenxing 3, Shi Jiankui 1   

  1. (1.State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190; 2.College of Information, Minzu University of China, Beijing 100081)
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-01-15 Published:2011-01-15
  • Contact: Zhang Lingqian

Abstract: With 4 s resolution data of FGM and HIA on Cluster/C1, the earthward Convective Bursty Flows (CBF) inside the region of -19 Re < x < -9 Re, -10 Re < y < 10 Re and -5 Re < z < 5 Re were statistically analyzed in the GSM coordinate. According to the statistical results, the CBF inside the Central Plasma Sheet (CPS) has distinctly ``braking'' inside 13~15 Re, and ``absence'' around 11.5 Re. The further detail analysis of the velocity of the CBF showed that the CBF move mainly toward the earth. The speed of the CBF has no clear decrease while moving earthward. In addition, the CBF have stronger perpendicular velocity inside 13 Re than outside 15 Re. This implied that the ``absence of BBF'' is not due to the deflection of the high-speed flows. The ``braking'' and ``absence'' of BBF may be closely related. The joint observations of TC-1 and Cluster satellites are important for understanding the transport process of the CBF in the CPS.

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