Convective high-speed flow and field-aligned high-speed flows explored by TC-1  

作　　者：ZHANG LingQian LIU ZhenXing MA ZhiWei W. BAUMJOHANN M.W. DUNLOP WANG GuangJun WANG Xiao H. REME C. CARR 

机构地区：[1]Centre for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China [2]Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, China [3]Space Research Institute, Austrian Academy of Sciences, 6,8042 Graz, Austria [4]Space Sciences Division, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom [5]Centre d'Etude Spatiale des Rayonnements, F-78140 Toulouse Codex, France [6]Imperial College,London SW7 2BZ, United Kingdom

出　　处：《Chinese Science Bulletin》2008年第15期2371-2375,共5页

基　　金：the National Natural Science Foundation of China (Grant Nos. 40704031, 40620130094 and 40536030)

摘　　要：From June 1, 2004 to October 31, 2006, a total 465 high-speed flow events are observed by the TC-1 satellite in the near-Earth region (?13 RE < x < ?9 RE, |Y |<10 RE, |Z|<5 RE). Based on the angle between the flow and the magnetic field, the high-speed flow events are further divided into two types, that is, field-aligned high-speed flow (FAHF) in the plasma sheet boundary and convective bursty bulk flow (BBF) in the center plasma sheet. Among the total 465 high-speed flow events, there are 371 FAHFs, and 94 BBFs. The CHF are mainly concentrated in the plasma sheet, the intersection angle between the flow and the magnetic field is larger, the magnetic field intensity is relatively weak. The FHF are mainly distributed near the boundary layer of the plasma sheet, the intersection angle between the flow and magnetic field is smaller, and the magnetic field intensity is relatively strong. The convective BBFs have an important effect on the substorm.From June 1, 2004 to October 31, 2006, a total 465 high-speed flow events are observed by the TC-1 satellite in the near-Earth region （-13 RE〈X〈-9 RE, ｜Y｜〈10 RE, ｜Z＋〈5 RE）, Based on the angle between the flow and the magnetic field, the high-speed flow events are further divided into two types, that is, field-aligned high-speed flow （FAHF） in the plasma sheet boundary and convective bursty bulk flow （BBF） in the center plasma sheet, Among the total 465 high-speed flow events, there are 371 FAHFs, and 94 BBFs, The CHF are mainly concentrated in the plasma sheet, the intersection angle between the flow and the magnetic field is larger, the magnetic field intensity is relatively weak, The FHF are mainly distributed near the boundary layer of the plasma sheet, the intersection angle between the flow and magnetic field is smaller, and the magnetic field intensity is relatively strong, The convective BBFs have an important effect on the substorm,

关 键 词：高速流 对流 磁场 地球科学 

分 类 号：P3[天文地球—地球物理学]