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A Statistical Study of the Plasma Sheet in the Near and Middle Earth Magnetotail
Pu, Zu-Yin; Fu, Sui-Yan; Shi, Quan-Qi +5 more
Magnetotail plasma sheet is the most active area in Earth's magnetosphere. It has been found that the features of plasma sheet are controlled by the conditions of solar wind and Interplanetary Magnetic Field (IMF). Some previous statistical studies have found that some parameters of the plasma sheet are dawn-dusk asymmetric. But the thickness of t…
Evolvement of the Ring Current During a Magnetic Storm: TC-2 Neutral Atom Imager Observations
Shen, Chao; Liu, Zhen-Xing; Lu, Li +3 more
A series of ENA images were obtained by the NUADU instrument aboard TC-2 during a strong, long duration magnetic storm that occurred in November 2004. This paper follows the evolution of the ring current during this magnetic storm. It is shown that the southward IMF Bz component plays a key role in facilitating ion injection from the magnetotail i…
ULF Waves Associated with Periodical High Speed Flows in the Magnetotail Plasma Sheet
Cao, Jin-Bin; Wang, Zhi-Qiang
In this paper, using the data of Cluster satellites on 8 November 2004, we analyze the ULF waves associated with earthward periodical high speed flows in the magnetotail plasma sheet. The results show that the ULF waves in the magnetic field and temperature appear, enhance and end at the same times with those of periodical high speed ion flows. Pa…
Mid-Tail Magnetic Reconnection Triggering Substorm: A Case Study
Luo, Hao; Wang, Rong-Sheng; Du, Ai-Min +2 more
Onset of a substorm is closely correlated with the current disruption in the near-Earth magnetotail, about 6 8 RE and magnetic reconnection in the middle magnetotail, around 20 30 RE. It is vital to understand the onset of a substorm by studying the time series among polar expansion of aurora, current disruption and magnetic reconnection. In this …
Statistical Study of the Solar Wind Deceleration in the Earth's Foreshock Region
Lucek, E.; Reme, H.; Cao, Jin-Bin +2 more
The data from two same satellites (CLUSTER C1 and C3) were used to make a statistical study of the solar wind deceleration and deflection in the Earth's foreshock region for the first time. In the foreshock coordinates, the magnitude of deceleration is inversely proportional to the distance DBS between the satellite and the bow shock along the int…
Observations of Multiple X Lines Collisionless Reconnection in the Near Earth-Tail
Tang, Chao-Ling; Li, Zhong-Yuan; Wang, Rong-Shen
Observations of the Earth's magnetotail made by the Cluster II during 09:42 09:50 UT on October 1 2001 are presented. Two tailward magnetic flux ropes bounded by earthward and tailward convective high speed flows were observed. We directly detected the source of tailward high flow and the outflow region of earthward flow. Combining the observation…
Simultaneous Cluster and CUTLASS Observations of FTEs on 11 February 2004
Lester, M.; Dunlop, M. W.; Bogdanova, Y. V. +5 more
This paper analyzes the simultaneous observations of the Flux Gate Magnetometer (FGM) and Plasma Electron and Current Experiment (PEACE) on Cluster Spacecraft, and the CUTLASS Finland radar between 11:00 and 11:40 UT on 11 February 2004. In this interval, the Cluster spacecraft array encountered the northern hemisphere high altitude cusp, and cros…
Whistle and Hall Magnetic Field Associated with Near-Earth Magnetotail Reconnection Observed by Cluster
Santolik, O.; Reme, H.; Cao, Jin-Bin +4 more
During the period of 2001 2003, Cluster passed through the near-Earth magnetotail, and observed 14 magnetotail reconnection events. Simultaneously, Cluster observed electromagnetic wave associated with reconnection events. These 14 events can be classified into three categories: (1) Category 1: wave activities prior to and during reconnection even…
Dipolarization Observed by TC1 and Cluster During Substorm in Sep. 14, 2004
Dunlop, M. W.; Reme, H.; Korth, A. +12 more
We study the substorm dipolarization occurring from 1730 to 1930 UT on Sep 14, 2004 based on DSP/TC1, Cluster and Polar data, combined with the aurora and geosynchronous energetic particle measurements and ground-based magnetic field observations. During this time period the IMF was continuously southward. Substorm onset started at about 1822 UT. …
Multipoint Analysis of the Rapid Convection Event
Dandouras, I.; Lucek, E.; Reme, H. +4 more
Basing on the data from three satellites of Cluster (C1, C3 and C4) in the years of 2001 and 2002, we examine the relationship between the rapid convection event (RCE) and substorm. The observation of RCE measured by single satellite can not exactly describe what happens in the magnetotail. Both C1 and C3 observed the event occurring on July 25, 2…