| The distribution characteristics of the flows in the near-Earth region： TC-1 observational results |
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| 作者姓名： | ZHANG LingQian LIU ZhenXing WANG JiYe MA ZhiWei PU ZhuYin SHEN Chao GUO JiuLing |
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| 作者单位： | [1]Center for Space and Applied Research, Chinese Academy of Sciences, Beijing 100080, China [2]College of Physics and Electronic Engineering, Central University for Nationalities, Beijing 100081, China [3]Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China [4]School of Earth and Space Science, Peking University, Beijing 100871, China [5]Modern Education Technology Center, Peking University, Beijiing 100871, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （Grant Nos. 40390150, 40536030 and 40674094）.The authors wish to thank the China Double Star Data Center for supplying the DSP data. |
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| 摘 要： | TC-1 observational results clearly indicate that the velocity of the flows in the near-Earth region is dependent on the satellite location. The flow speed decreases while satellite moves close to the Earth. The plasma flow in the region close to the Earth tends to drift into the midnight region from the dawn and dusk region while the flow in the region away from the Earth shows an opposite drift. The observational results also show that the tailward flows are mainly located in the plasma sheet boundary while the earthward flow becomes dominant in the plasma sheet. It is found that both the strong tailward and earthward flows are distributed in the region around X= -11 Re, which coincides with the trigger region of the substorm onset. Hence, it may suggest that the flows are related with the trigger of the substorm onset. In addition, the BBFs coming from the mid-tail maily distributed in the region where X〈-9R E a n d ｜Z｜ 〈 3 R E that differs from the convection.
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| 关 键 词： | 地球 磁尾 地形分布 数据收集 |
| 收稿时间： | 2006-12-20 |
| 修稿时间： | 2007-03-06 |
The distribution characteristics of the flows in the near-Earth region: TC-1 observational results |
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| ZHANG LingQian LIU ZhenXing WANG JiYe MA ZhiWei PU ZhuYin SHEN Chao GUO JiuLing.The distribution characteristics of the flows in the near-Earth region: TC-1 observational results[J].Chinese Science Bulletin,2007,52(23):3267-3271. |
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| Authors: | Zhang LingQian Liu ZhenXing Wang JiYe Ma ZhiWei Pu ZhuYin Shen Chao Guo JiuLing |
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| Institution: | (1) Center for Space and Applied Research, Chinese Academy of Sciences, Beijing, 100080, China;(2) College of Physics and Electronic Engineering, Central University for Nationalities, Beijing, 100081, China;(3) Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China;(4) School of Earth and Space Science, Peking University, Beijing, 10087, China;(5) Modern Education Technology Center, Peking University, Beijing, 100871, China |
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| Abstract: | TC-1 observational results clearly indicate that the velocity of the flows in the near-Earth region is dependent on the satellite
location. The flow speed decreases while satellite moves close to the Earth. The plasma flow in the region close to the Earth
tends to drift into the midnight region from the dawn and dusk region while the flow in the region away from the Earth shows
an opposite drift. The observational results also show that the tailward flows are mainly located in the plasma sheet boundary
while the earthward flow becomes dominant in the plasma sheet. It is found that both the strong tailward and earthward flows
are distributed in the region around X=−11Re, which coincides with the trigger region of the substorm onset. Hence, it may suggest that the flows are related with
the trigger of the substorm onset. In addition, the BBFs coming from the mid-tail maily distributed in the region where X<−9RE and |Z|<3RE that differs from the convection.
Supported by the National Natural Science Foundation of China (Grant Nos. 40390150, 40536030 and 40674094) |
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| Keywords: | near-Earth magnetotail earthward flow tailward flow |
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