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| 1 | The radial evolution of earthward BBFs during substorm显示文摘We here study the occurrence rate,probability function of velocity and duration of earthward bursty bulk flows(BBFs) in the Inner Plasma Sheet(IPS,β>0.5) using the data of Cluster in 2001 and 2002.The occurrence rate of earthward BBFs increases with distance from the Earth up to ?19 RE,which is in agreement with the previous observations of the radial evolution of BBFs.About 54% of earthward BBFs in expansion phase have a velocity larger than 600 km/s,whereas only 38% of earthward BBFs in growth and recovery phases have a velocity larger than 600 km/s.The average velocity of earthward BBFs in expansion phase is 732 km/s,larger than those in growth phase(631 km/s) and recovery phase(617 km/s).The durations of earthward BBFs decrease with the decrease of downtail distance from Earth due to the braking of earthward BBFs.The duration of earthward BBFs in expansion phase is larger than that in growth and recovery phases.The average durations in growth,expansion,and recovery phases are respectively 49.3,71.5,and 47.6 s.Therefore,the ratios of transports of energy of earthward BBFs in growth,expansion,and recovery phases can be estimated to be 0.51:1:0.47.Thus,the earthward BBFs in the expansion phase have the largest capability of the transport of energy and can produce the largest braking effects,such as inertial currents and auroral activities. | REME H DANDOURAS I LUCEK E DUNLOP M | 2010 | Science China Earth Sciences2010，53，10： | 4 |
| 2 | Statistical survey on the magnetic field in magnetotail current sheets: Cluster observations显示文摘The distribution properties of the magnetic field in magnetotail current sheets have been explored statistically with the magnetic measurement data of the Cluster mission from June to November of the years 2001–2005.It is found that,on average,the strength of the magnetic field and its Bz component in the current sheet are weaker in the region close to midnight but stronger near the dawnside and duskside flanks,which implies that,in general,a thinner current sheet occurs near midnight and thicker ones near both flanks.The occurrence of tail current sheet flapping is higher on both flanks than in the midnight region,although it is most frequent in the dawn flank.Current sheets with a negative Bz component or a strong By component have a higher probability of occurring at magnetic local times of 21:00–01:00,indicating that magnetic activity,e.g.magnetic reconnection and current disruption occur more frequently there.Statistically,the probability distributions of the By component and the tilt angle of magnetic field lines in the current sheet are approximately normal distributions,and the occurrence probability of the flattened current sheet is about one third that of the normal current sheet.The magnetic field and Bz component in the current sheet mainly vary from 1 nT to 10 nT.The By component in the tail central current sheet is on average twice the IMF By at 1 AU. | RONG ZhaoJin SHEN Chao LUCEK E BALOGH A YAO Li | 2010 | Chinese Science Bulletin2010，55，23： | 3 |
| 3 | ULF Waves Associated with Solar Wind Deceleration in the Earth's Foreshock显示文摘在 67 2003 年 4 月上在地球的前震与太阳的风减速联系的 ULF 波浪的特征用波浪望远镜技术被学习。在卫星框架, ULF 波浪是左手极化并且伪反平行的宣传模式,与在大约 18.63 mHz 的一座力量山峰。在 GSE 坐标的波浪向量被估计是 =(? 4.29, 2.28, 1.21 ) 瑮吗? | 符慧山 曹晋滨 杨彪 Lucek E Reme H Dandouras I | 2009 | Chinese Physics Letters2009，26，11： | 2 |
| 4 | 基于Cluster观测对地球磁尾电流片磁场分布的初步统计分析显示文摘利用Cluster在2001~2005年期间每年6~11月4s精度的磁场数据对磁尾电流片的磁场分布特性进行了统计分析.结果表明,电流片中心处磁场及其Bz分量的强度在磁尾午夜区通常较弱,而在磁层晨、昏两侧处普遍较强,这表明午夜区的电流片较薄,而在晨、昏两侧的电流片较厚.在晨昏两侧处,电流片拍动剧烈,尤以晨侧最甚,而午夜区的电流片拍动最弱.在磁地方时21:00~01:00范围内,负Bz及扁平电流片出现的几率较大,磁重联或电流中断等活动比较容易发生.磁尾电流片中By分量和磁力线倾斜角的频次分布都近似满足正态分布,扁平电流片的出现几率约是标准电流片的1/3;而磁场强度Bmin和Bz分量则主要分布在1~10nT范围内.电流片中By分量的强度近似为1AU处行星际磁场By分量的两倍,二者的相关系数以扁平电流片尤其高,这表明电流片中By的大小和符号易受行星际By等外部因素的影响. | 戎昭金 沈超 LUCEK E BALOGH A 姚丽 | 2010 | 科学通报2010，55，9： | 0 |
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