Results
author = " Torbert, R. B."
The magnetosphere under weak solar wind forcing
Author(s) :
Farrugia, C. J.
,
Grocott, A.
,
Sandholt, P. E.
,
Cowley, S. W. H.
,
Miyoshi, Y.
,
Rich, F. J.
,
Jordanova, V. K.
,
Torbert, R. B.
Description :
The Earth's magnetosphere was very strongly disturbed during the passage of the strong shock and the following interacting ejecta on 21?25 October 2001. These disturbances included two intense storms (Dst*??250 and ?180 nT, respectively). The cessation of this activity a...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
High-latitude plasma convection from Cluster EDI measurements: method and IMF-dependence
Author(s) :
Haaland, S. E.
,
Paschmann, G.
,
Förster, M.
,
Quinn, J. M.
,
Torbert, R. B.
,
Mcilwain, C. E.
,
Vaith, H.
,
Puhl-Quinn, P. A.
Description :
We have used vector measurements of the electron drift velocity made by the Electron Drift Instrument (EDI) on Cluster between February 2001 and March 2006 to derive statistical maps of the high-latitude plasma convection. The EDI measurements, obtained at geocentric distances between ~4 and ~20 ...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Plasma convection across the polar cap, plasma mantle and cusp: Cluster EDI observations
Author(s) :
Vaith, H.
,
Paschmann, G.
,
Quinn, J. M.
,
Förster, M.
,
Georgescu, E.
,
Haaland, S. E.
,
Klecker, B.
,
Kletzing, C. A.
,
Puhl-Quinn, P. A.
Description :
In this paper we report measurements of the convection obtained with the Electron Drift Instrument (EDI) on Cluster. We use 20 passes that cross the between its dayside and nightside boundaries (or vice versa) at geocentric distances ranging from about 5 to about 13RE, and at inter...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
EDI convection measurements at 5-6 RE in the post-midnight region
Author(s) :
Quinn, J. M.
,
Paschmann, G.
,
Sckopke, N.
,
Jordanova, V. K.
,
Vaith, H.
,
Bauer, O. H.
,
Baumjohann, W.
,
Fillius, W.
,
Haerendel, G.
Description :
We present the first triangulation measurements of electric fields with the electron drift instrument (EDI) on Equator-S. We show results from five high-data-rate passes of the satellite through the near-midnight equatorial region, at geocentric distances of approximately 5?6 RE, during g...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
EDI electron time-of-flight measurements on Equator-S
Author(s) :
Paschmann, G.
,
Sckopke, N.
,
Vaith, H.
,
Quinn, J. M.
,
Bauer, O. H.
,
Baumjohann, W.
,
Fillius, W.
,
Haerendel, G.
,
Kerr, S. S.
Description :
We present the first electron time-of-flight measurements obtained with the Electron Drift Instrument (EDI) on Equator-S. These measurements are made possible by amplitude-modulation and coding of the emitted electron beams and correlation with the signal from the returning electrons. The purpose of...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Alfvén waves in the near-PSBL lobe: Cluster observations
Author(s) :
Takada, T.
,
Nakamura, R.
,
Baumjohann, W.
,
Seki, K.
,
Vörös, Z.
,
Asano, Y.
,
Volwerk, M.
,
Runov, A.
,
Zhang, T. L.
,
Balogh, A.
Description :
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 transport their wave energy (Poynting flux) on average toward the Earth along magnetic field lines. Most o...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
The Electron Drift Instrument on Cluster: overview of first results
Author(s) :
Paschmann, G.
,
Quinn, J. M.
,
Torbert, R. B.
,
Vaith, H.
,
Mcilwain, C. E.
,
Haerendel, G.
,
Bauer, O. H.
,
Bauer, T.
,
Baumjohann, W.
Description :
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 employing different electron energies. The technique requires the injection of two electron beams at right an...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Cluster EDI convection measurements across the high-latitude plasma sheet boundary at midnight
Author(s) :
Quinn, J. M.
,
Paschmann, G.
,
Torbert, R. B.
,
Vaith, H.
,
Mcilwain, C. E.
,
Haerendel, G.
,
Bauer, O.
,
Bauer, T. M.
,
Baumjohann, W.
Description :
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 full electron drift velocity in the plane perpendicular to the magnetic field for any field and dr...
Repository :
HAL - Hyper Article on Line
Language(s) :
English