Spectral scaling in the turbulent Earth's plasma sheet revisited (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Volwerk, M., Asano, Y., ...
Bursty bulk flow associated magnetic fluctuations exhibit at least three spectral scaling ranges in the Earth's plasma sheet. Two of the three scaling ranges can be associated with multi-scale...
Dissipation scales in the Earth's plasma sheet estimated from Cluster measurements (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Volwerk, M., Schwarzl, H., ...
In order to estimate the dissipation time-scale in magnetic turbulence in the plasma sheet a novel method is introduced for classification of velocity dependent patterns of two-point probability...
Spectral scaling in the turbulent Earth's plasma sheet revisited (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Volwerk, M., Asano, Y., ...
Bursty bulk flow associated magnetic fluctuations exhibit at least three spectral scaling ranges in the Earth's plasma sheet. Two of the three scaling ranges can be associated with multi-scale...
Dissipation scales in the Earth's plasma sheet estimated from Cluster measurements (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Volwerk, M., Schwarzl, H., ...
In order to estimate the dissipation time-scale in magnetic turbulence in the plasma sheet a novel method is introduced for classification of velocity dependent patterns of two-point probability...
Structure of the near-Earth plasma sheet during tailward flows (2008)
Runov, A., Voronkov, I., Asano, Y., Baumjohann, W., Fujimoto, M., Nakamura, R., ...
A detailed analysis of successive tailward flow bursts in the near-Earth magnetotail (X~-19 RE) plasma sheet is performed on the basis of in-situ multi-point observations by the Cluster spacecraft on...
Dynamics of thin current sheets: Cluster observations (2008)
Baumjohann, W., Roux, A., Le Contel, O., Nakamura, R., Birn, J., Hoshino, M., ...
The paper tries to sort out the specific signatures of the Near Earth Neutral Line (NENL) and the Current Disruption (CD) models, and looks for these signatures in Cluster data from two events. For...
Multi-spacecraft observation of plasma dipolarization/injection in the inner magnetosphere (2008)
Apatenkov, S. V., Sergeev, V. A., Kubyshkina, M. V., Nakamura, R., Baumjohann, W., Runov, A., ...
Addressing the origin of the energetic particle injections into the inner magnetosphere, we investigate the 23 February 2004 substorm using a favorable constellation of four Cluster (near perigee),...
Spatial structure of plasma flow associated turbulence in the Earth's plasma sheet (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Volwerk, M., Takada, T., ...
Using Cluster multipoint magnetic and plasma measurements we analyze the spatial structure of plasma flow-associated turbulence on 26 September 2005. The fortunate relative configuration of the...
Alfvén waves in the near-PSBL lobe: Cluster observations (2008)
Takada, T., Nakamura, R., Baumjohann, W., Seki, K., Vörös, Z., Asano, Y., ...
Electromagnetic low-frequency waves in the magnetotail lobe close to the PSBL (Plasma Sheet Boundary Layer) are studied using the Cluster spacecraft. The lobe waves show Alfvénic properties and...
Plasma flow channels with ULF waves observed by Cluster and Double Star (2008)
Volwerk, M., Zhang, T. L., Nakamura, R., Runov, A., Baumjohann, W., ...
On 14 August 2004 a large-scale magnetic structure was observed by Double Star TC-1 in the southern lobe and by Cluster in the northern lobe of the magnetotail. The structure has the signature of a...
Observation of reconnection pulses by Cluster and Double Star (2008)
Deng, X. H., Tang, R. X., Nakamura, R., Baumjohann, W., Zhang, T. L., Daly, P. W., ...
During a reconnection event on 7 August 2004, Cluster and Double Star (TC-1) were near the neutral sheet and simultaneously detected the signatures of the reconnection pulses. AT 22:59 UT tailward...
Cluster and Double Star observations of dipolarization (2008)
Nakamura, R., Baumjohann, W., Zhang, T. L., Carr, C. M., Balogh, A., ...
We studied two types of dipolarization events with different IMF conditions when Cluster and Double Star (TC-1) were located in the same local time sector: 7 August 2004, 18:00-24:00 UT, during a...
Structure of the near-Earth plasma sheet during tailward flows (2008)
Runov, A., Voronkov, I., Asano, Y., Baumjohann, W., Fujimoto, M., Nakamura, R., ...
A detailed analysis of successive tailward flow bursts in the near-Earth magnetotail (X~-19 RE) plasma sheet is performed on the basis of in-situ multi-point observations by the Cluster spacecraft on...
Dynamics of thin current sheets: Cluster observations (2008)
Baumjohann, W., Roux, A., Le Contel, O., Nakamura, R., Birn, J., Hoshino, M., ...
The paper tries to sort out the specific signatures of the Near Earth Neutral Line (NENL) and the Current Disruption (CD) models, and looks for these signatures in Cluster data from two events. For...
Multi-spacecraft observation of plasma dipolarization/injection in the inner magnetosphere (2008)
Apatenkov, S. V., Sergeev, V. A., Kubyshkina, M. V., Nakamura, R., Baumjohann, W., Runov, A., ...
Addressing the origin of the energetic particle injections into the inner magnetosphere, we investigate the 23 February 2004 substorm using a favorable constellation of four Cluster (near perigee),...
Spatial structure of plasma flow associated turbulence in the Earth's plasma sheet (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Volwerk, M., Takada, T., ...
Using Cluster multipoint magnetic and plasma measurements we analyze the spatial structure of plasma flow-associated turbulence on 26 September 2005. The fortunate relative configuration of the...
Alfvén waves in the near-PSBL lobe: Cluster observations (2008)
Takada, T., Nakamura, R., Baumjohann, W., Seki, K., Vörös, Z., Asano, Y., ...
Electromagnetic low-frequency waves in the magnetotail lobe close to the PSBL (Plasma Sheet Boundary Layer) are studied using the Cluster spacecraft. The lobe waves show Alfvénic properties and...
Plasma flow channels with ULF waves observed by Cluster and Double Star (2008)
Volwerk, M., Zhang, T. L., Nakamura, R., Runov, A., Baumjohann, W., ...
On 14 August 2004 a large-scale magnetic structure was observed by Double Star TC-1 in the southern lobe and by Cluster in the northern lobe of the magnetotail. The structure has the signature of a...
Observation of reconnection pulses by Cluster and Double Star (2008)
Deng, X. H., Tang, R. X., Nakamura, R., Baumjohann, W., Zhang, T. L., Daly, P. W., ...
During a reconnection event on 7 August 2004, Cluster and Double Star (TC-1) were near the neutral sheet and simultaneously detected the signatures of the reconnection pulses. AT 22:59 UT tailward...
Cluster and Double Star observations of dipolarization (2008)
Nakamura, R., Baumjohann, W., Zhang, T. L., Carr, C. M., Balogh, A., ...
We studied two types of dipolarization events with different IMF conditions when Cluster and Double Star (TC-1) were located in the same local time sector: 7 August 2004, 18:00-24:00 UT, during a...
Local structure of the magnetotail current sheet: 2001 Cluster observations (2008)
Runov, A., Sergeev, V. A., Nakamura, R., Baumjohann, W., Apatenkov, S., Asano, Y., ...
Thirty rapid crossings of the magnetotail current sheet by the Cluster spacecraft during July-October 2001 at a geocentric distance of 19 RE are examined in detail to address the structure of the...
Electric current and magnetic field geometry in flapping magnetotail current sheets (2008)
Runov, A., Sergeev, V. A., Baumjohann, W., Nakamura, R., Apatenkov, S., Asano, Y., ...
Using four-point magnetic field measurements by the Cluster spacecraft, we statistically analyze the magnetic field and electric current configurations during rapid crossings of the current sheet...
Properties of a bifurcated current sheet observed on 29 August 2001 (2008)
Runov, A., Sergeev, V., Nakamura, R., Baumjohann, W., Vörös, Z., Volwerk, M., ...
Ion density, velocity and temperature, measured by Cluster spacecraft in the plasma sheet during an isolated substorm at 10:20-11:15 UT, 29 August 2001 are discussed. The Custer/CODIF data for...
Multi-scale analysis of turbulence in the Earth's current sheet (2008)
Volwerk, M., Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Zhang, T. L., ...
A multi-scale analysis of magnetotail turbulence in the Earth's tail current sheet is presented based on Cluster magnetometer observations. Both Fourier and wavelet analysis is used to describe the...
Compressional waves in the Earth's neutral sheet (2008)
Volwerk, M., Baumjohann, W., Glassmeier, K. H., Nakamura, R., Zhang, T. L., Runov, A., ...
Compressional waves in the Earth's current sheet, driven by the high-speed plasma flows connected to substorms, are investigated using the Cluster magnetometer and plasma instrument. During the time...
Multi-scale magnetic field intermittence in the plasma sheet (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Zhang, T. L., Volwerk, M., ...
This paper demonstrates that intermittent magnetic field fluctuations in the plasma sheet exhibit transitory, localized, and multi-scale features. We propose a multifractal-based algorithm, which...
Kistler, L. M., Klecker, B., Jordanova, V. K., Möbius, E., Popecki, M. A., Patel, D., ...
During the main and early recovery phase of a geomagnetic storm on February 18, 1998, the Equator-S ion composition instrument (ESIC) observed spectral features which typically represent the...
Parks, G. K., Datta, S., Mccarthy, M., Lin, R. P., Reme, H., Sauvaud, J. A., ...
An electrostatic analyser (ESA) onboard the Equator-S spacecraft operating in coordination with a potential control device (PCD) has obtained the first accurate electron energy spectrum with energies...
Sergeev, V. A., Kubyshkina, M. V., Baumjohann, W., Nakamura, R., Amm, O., Pulkkinen, T., ...
Transition from the growth phase to the substorm expansion during a well-isolated substorm with a strong growth phase is investigated using a unique radial (THEMIS-like) spacecraft constellation near...
Local structure of the magnetotail current sheet: 2001 Cluster observations (2008)
Runov, A., Sergeev, V. A., Nakamura, R., Baumjohann, W., Apatenkov, S., Asano, Y., ...
Thirty rapid crossings of the magnetotail current sheet by the Cluster spacecraft during July-October 2001 at a geocentric distance of 19 RE are examined in detail to address the structure of the...
Electric current and magnetic field geometry in flapping magnetotail current sheets (2008)
Runov, A., Sergeev, V. A., Baumjohann, W., Nakamura, R., Apatenkov, S., Asano, Y., ...
Using four-point magnetic field measurements by the Cluster spacecraft, we statistically analyze the magnetic field and electric current configurations during rapid crossings of the current sheet...
Properties of a bifurcated current sheet observed on 29 August 2001 (2008)
Runov, A., Sergeev, V., Nakamura, R., Baumjohann, W., Vörös, Z., Volwerk, M., ...
Ion density, velocity and temperature, measured by Cluster spacecraft in the plasma sheet during an isolated substorm at 10:20-11:15 UT, 29 August 2001 are discussed. The Custer/CODIF data for...
Multi-scale analysis of turbulence in the Earth's current sheet (2008)
Volwerk, M., Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Zhang, T. L., ...
A multi-scale analysis of magnetotail turbulence in the Earth's tail current sheet is presented based on Cluster magnetometer observations. Both Fourier and wavelet analysis is used to describe the...
Compressional waves in the Earth's neutral sheet (2008)
Volwerk, M., Baumjohann, W., Glassmeier, K. H., Nakamura, R., Zhang, T. L., Runov, A., ...
Compressional waves in the Earth's current sheet, driven by the high-speed plasma flows connected to substorms, are investigated using the Cluster magnetometer and plasma instrument. During the time...
Multi-scale magnetic field intermittence in the plasma sheet (2008)
Vörös, Z., Baumjohann, W., Nakamura, R., Runov, A., Zhang, T. L., Volwerk, M., ...
This paper demonstrates that intermittent magnetic field fluctuations in the plasma sheet exhibit transitory, localized, and multi-scale features. We propose a multifractal-based algorithm, which...
Kistler, L. M., Klecker, B., Jordanova, V. K., Möbius, E., Popecki, M. A., Patel, D., ...
During the main and early recovery phase of a geomagnetic storm on February 18, 1998, the Equator-S ion composition instrument (ESIC) observed spectral features which typically represent the...
Parks, G. K., Datta, S., Mccarthy, M., Lin, R. P., Reme, H., Sauvaud, J. A., ...
An electrostatic analyser (ESA) onboard the Equator-S spacecraft operating in coordination with a potential control device (PCD) has obtained the first accurate electron energy spectrum with energies...
Sergeev, V. A., Kubyshkina, M. V., Baumjohann, W., Nakamura, R., Amm, O., Pulkkinen, T., ...
Transition from the growth phase to the substorm expansion during a well-isolated substorm with a strong growth phase is investigated using a unique radial (THEMIS-like) spacecraft constellation near...
Survey of large-amplitude flapping motions in the midtail current sheet (2008)
Sergeev, V. A., Sormakov, D. A., Apatenkov, S. V., Baumjohann, W., Nakamura, R., Runov, A. V., ...
We surveyed fast current sheet crossings (flapping motions) over the distance range 10?30 RE in the magnetotail covered by the Geotail spacecraft. Since the local tilts of these dynamic sheets are...
Oscillatory magnetic flux tube slippage in the plasma sheet (2008)
Petrukovich, A. A., Zhang, T. L., Baumjohann, W., Nakamura, R., Runov, A., Balogh, A., ...
Cluster observations in the magnetotail revealed an abundance of strongly inclined current sheets. We determine the magnetic configuration of a particular subset of such phenomena: a series of sheet...
Double Star/Cluster observation of neutral sheet oscillations on 5 August 2004 (2008)
Zhang, T. L., Nakamura, R., Volwerk, M., Runov, A., Baumjohann, W., Eichelberger, H. U., ...
Previous Cluster observations have shown that the flapping motions of the Earth's magnetotail are of internal origin and that kink-like waves are emitted from the central part of the tail and...
Spacecraft potential control for Double Star (2008)
Torkar, K., Arends, H., Baumjohann, W., Escoubet, C. P., Fazakerley, A., Fehringer, M., ...
The spacecraft potential of Double Star TC-1 is positive in large parts of the orbits due to the photo-effect from solar EUV irradiation. These positive potentials typically disturb low energy plasma...
Carr, C., Brown, P., Zhang, T. L., Gloag, J., Horbury, T., Lucek, E., ...
One of the primary objectives of the Double Star mission is the accurate measurement of the magnetic field vector along the orbits of the two spacecraft. The magnetic field is an essential parameter...
The storm time central plasma sheet (2008)
Schödel, R., Dierschke, K., Baumjohann, W., Nakamura, R., Mukai, T.
The plasma sheet plays a key role during magnetic storms because it is the bottleneck through which large amounts of magnetic flux that have been eroded from the dayside magnetopause have to be...
Bi-directional electrons in the near-Earth plasma sheet (2008)
Shiokawa, K., Baumjohann, W., Paschmann, G.
We have studied the occurrence characteristics of bi-directional electron pitch angle anisotropy (enhanced flux in field-aligned directions, F^ /F|| > 1.5) at energies of 0.1?30 keV using plasma and...
Quinn, J. M., Paschmann, G., Torbert, R. B., Vaith, H., Mcilwain, C. E., Haerendel, G., ...
We examine two crossings of three Cluster satellites from the polar cap into the high-latitude plasma sheet at midnight local time, using data from the Electron Drift Instrument (EDI). EDI measures...
The Electron Drift Instrument on Cluster: overview of first results (2008)
Paschmann, G., Quinn, J. M., Torbert, R. B., Vaith, H., Mcilwain, C. E., Haerendel, G., ...
EDI measures the drift velocity of artificially injected electron beams. From this drift velocity, the perpendicular electric field and the local magnetic field gradients can be deduced when...
Investigation of the outer and inner low-latitude boundary layers (2008)
Bauer, T. M., Treumann, R. A., Baumjohann, W.
We analyze 22 AMPTE/IRM crossings of the day-side low-latitude boundary layer for which a dense outer part can be distinguished from a dilute inner part. Whereas the plasma in the outer boundary...
Fluid and particle signatures of dayside reconnection (2008)
Bauer, T. M., Paschmann, G., Sckopke, N., Treumann, R. A., Baumjohann, W.
Using measurements of the AMPTE/IRM spacecraft, we study reconnection signatures at the dayside magnetopause. If the magnetopause is open, it should have the properties of a rotational discontinuity....
Compressional Pc5 type pulsations in the morningside plasma sheet (2008)
Vaivads, A., Baumjohann, W., Haerendel, G., Nakamura, R., Kucharek, H., Klecker, B., ...
We study compressional pulsations in Pc5 frequency range observed in the dawn-side at distances of about 10 RE , close to the magnetic equator. We use data obtained during two events of conjunctions...
Magnetic field fluctuations across the Earth's bow shock (2008)
Czaykowska, A., Bauer, T. M., Treumann, R. A., Baumjohann, W.
We present a statistical analysis of 132 dayside (LT 0700-1700) bow shock crossings of the AMPTE/IRM spacecraft. We perform a superposed epoch analysis of low frequency, magnetic power spectra some...
The UV aurora and ionospheric flows during flux transfer events (2008)
Neudegg, D. A., Cowley, S. W. H., Mcwilliams, K. A., Lester, M., Yeoman, T. K., Sigwarth, J. B., ...
Far Ultra Violet (FUV) signatures in the polar ionosphere during a period of magnetopause reconnection are compared with ionospheric flows measured in the cusp ?throat' and dusk cell by the CUTLASS...
Substorm observations in the early morning sector with Equator-S and Geotail (2008)
Nakamura, R., Haerendel, G., Baumjohann, W., Vaivads, A., Kucharek, H., Klecker, B., ...
Data from Equator-S and Geotail are used to study the dynamics of the plasma sheet observed during a substorm with multiple intensifications on 25 April 1998, when both spacecraft were located in the...
High-beta plasma blobs in the morningside plasma sheet (2008)
Haerendel, G., Baumjohann, W., Georgescu, E., Nakamura, R., Kistler, L. M., Klecker, B., ...
Equator-S frequently encountered, i.e. on 30% of the orbits between 1 March and 17 April 1998, strong variations of the magnetic field strength of typically 5?15-min duration outside about 9RE during...
Identification of magnetosheath mirror modes in Equator-S magnetic field data (2008)
Lucek, E. A., Dunlop, M. W., Balogh, A., Cargill, P., Baumjohann, W., Georgescu, E., ...
Between December 1997 and March 1998 Equator-S made a number of excursions into the dawn-side magnetosheath, over a range of local times between 6:00 and 10:40 LT. Clear mirror-like structures,...
Dunlop, M. W., Balogh, A., Baumjohann, W., Haerendel, G., Georgescu, E., ...
Magnetic field measurements, taken by the magnetometer experiment (MAM) on board the German Equator-S spacecraft, have been used to identify and categorise 131 crossings of the dawn-side magnetopause...
Waveform and packet structure of lion roars (2008)
Baumjohann, W., Treumann, R. A., Georgescu, E., Haerendel, G., Auster, U.
The Equator-S magnetometer is very sensitive and has a sampling rate of normally 128 Hz. The high sampling rate allows for the first time fluxgate magnetometer measurements of ELF waves between the...
The magnetic field experiment onboard Equator-S and its scientific possibilities (2008)
Auster, H. U., Georgescu, E., Baumjohann, W., Haerendel, G., ...
The special feature of the ringcore fluxgate magnetometer on Equator-S is the high time and field resolution. The scientific aim of the experiment is the investigation of waves in the 10?100...