Search Publications
MHD and kinetic analysis of flow bursts in the Earth's plasma sheet
Dandouras, I.; Reme, H.; Cao, JinBin +6 more
In an attempt to study the flow bursts in the Earth's plasma sheet we select an event that took place on August 7, 2004 in the expansion phase of a substorm, using data from the geomagnetic index, solar wind data, plasma and magnetic field observations from C1 Cluster satellite (the Cluster mission has 4 satellites) and from Double Star TC-1 satel…
The mid-high latitude whistler mode chorus waves observed around substorm onsets
Cao, JinBin; Yang, JunYing; Yan, ChunXiao +2 more
Using the data of LFEW/TC-2, we studied the dawn side chorus around substorm onsets during a strong geomagnetic storm in November 2004. During this storm, LFEW/TC-2 observed 14 dawnside chorus events. Nine of them were associated with substorms and occurred within 40 min around the substorm onsets. The frequencies of waves have a very good correla…
Coordinated Cluster/Double Star observations of dayside flux transfer events on 6 April 2004
Dunlop, Malcolm; Xie, Lun; Liu, ZhenXing +8 more
With the Double Star Program TC1 in the equatorial orbit and Cluster tetrahedron in the high latitude polar orbit, a conjunct observation of FTEs on the dayside magnetopause (MP) on April 6, 2004 is presented in this study. The FTEs observed by TC1 at low latitudes are characterized to be generated in the subsolar region and the obtained flux tube…
Shrinkage of magnetosphere observed by TC-1 satellite during the high-speed solar wind stream
Reme, H.; Carr, C. M.; Cao, JinBin +6 more
During the interval 06:14-07:30 UT on August 24, 2005, since the Earth's magnetopause was suddenly compressed by the persistent high-speed solar wind stream with the southward component of the interplanetary magnetic field (IMF), the magnetopause moved inward for about 3.1 RE. Meanwhile, TC-1 satellite shifted from northern plasma sheet to the nor…
TC-1 observation of ion high-speed flow reversal in the near-Earth plasma sheet during substorm
Dandouras, I.; Reme, H.; Carr, C. M. +4 more
Based on measurements of FGM and HIA on board TC-1 at its apogee on Septem- ber 14, 2004, we analyzed the ion high-speed flows in the near-Earth plasma sheet observed during the substorm expansion phase. Strong tailward high-speed flows (Vx -350 km/s) were first seen at about X -13.2 RE in near-Earth magnetotail, one minute later the flows reverse…
Ultra low frequency waves observed by Double Star TC-1 in the plasmasphere boundary layer
Xie, Lun; Fu, SuiYan; Zhang, XiaoJia +3 more
The characteristic and properties of ULF waves in the plasmasphere boundary layer during two very quiet periods are present. The ULF waves were detected by Double Star TC-1 when the spacecraft passed through the plasmasphere in an outbound and inbound trajectories, respectively. A clear association between the ULF waves and periodic variations of …
Iterative inversion of global magnetospheric information from energy neutral atom (ENA) images recorded by the TC-2/NUADU instrument
Barabash, S.; Shen, Chao; Cao, JinBin +5 more
A method is presented for retrieving the magnetospheric ion distribution from Energetic Neutral Atom (ENA) measurements made by the NUADU instrument on the TC-2 spacecraft. Based on the already well-established method of constrained linear inversion, an iterance technique suitable for the low count ENA measurements has been developed which is tole…
Low-frequency fluctuations in the magnetosheath: Double Star TC-1 and Cluster observations
Zhang, TieLong; Du, Jian; Wang, Chi +1 more
The magnetic field variations are analyzed in the range of time periods from 4 s to 240 s in the magnetosheath observed by the Double Star TC-1 and Cluster in 2004. The characteristics of the magnetic field fluctuations are strongly controlled by the angle between the upstream interplanetary magnetic field (IMF) and the normal of the bow shock. Ge…
Solar wind transport into magnetosphere caused by magnetic reconnection at high latitude magnetopause during northward IMF: Cluster-DSP conjunction observations
Lucek, E.; Reme, H.; Dunlop, M. +5 more
An event of Cluster-Double Star conjunction observations of magnetic reconnection at high latitude magnetopause nightside of both cusps and solar wind transport into magnetosphere caused by such reconnection process has been investigated. During northward IMF, Cluster/SC1 observed accelerated flows and ion heating associated with magnetic reconnec…
Near-Earth bursty bulk flows and AE index
Dunlop, M. W.; Baumjohann, W.; Carr, C. +5 more
With the 4-s resolution data of the magnetometer and the ion plasma analyzer on TC-1 from June to November of each year during the period of 2004-2006, we statistically analyzed the occurrence rate of both convective and field-aligned bursty flows (FABFs). A near-Earth bursty bulk flow (NEBBF) occurred during both the quiet time and substorm proce…