Results 21 to 30 of about 31,489 (272)

Polar and Cluster observations of a dayside inverted-V during conjunction [PDF]

open access: yesAnnales Geophysicae, 2007
We investigate particle and fields data during a conjunction of the Polar and Cluster spacecraft. This conjunction occurs near the dayside cusp boundary layer when a dayside inverted-V was observed in the particle data of both satellites.
J. D. Menietti   +4 more
doaj   +1 more source

Dynamical processes in space: Cluster results [PDF]

open access: yesAnnales Geophysicae, 2013
After 12 years of operations, the Cluster mission continues to successfully fulfil its scientific objectives. The main goal of the Cluster mission, comprised of four identical spacecraft, is to study in three dimensions small-scale plasma structures ...
C. P. Escoubet   +6 more
doaj   +1 more source

An Integrated Nonlinear Analysis (INA) Software for Space Plasma Turbulence

open access: yesEarth and Space Science, 2023
We built an integrated nonlinear analysis software (INA)‐designed to study space plasma turbulence and intermittency. The MATLAB programming environment was used for the algorithmic development and implementation of methods for spectral analysis ...
Costel Munteanu   +2 more
doaj   +1 more source

Spatial and temporal characteristics of poloidal waves in the terrestrial plasmasphere: a CLUSTER case study [PDF]

open access: yesAnnales Geophysicae, 2007
Oscillating magnetic field lines are frequently observed by spacecraft in the terrestrial and other planetary magnetospheres. The CLUSTER mission is a very suitable tool to further study these Alfvén waves as the four CLUSTER spacecraft provide for an
S. Schäfer   +5 more
doaj   +1 more source

Cluster magnetotail observations of a tailward-travelling plasmoid at substorm expansion phase onset and field aligned currents in the plasma sheet boundary layer [PDF]

open access: yesAnnales Geophysicae, 2005
We present data from both ground- and space-based instruments for a substorm event which occurred on 5 October 2002, with an expansion phase onset time of 02:50 UT determined from the ground magnetometer data.
N. C. Draper   +17 more
doaj   +1 more source

Accuracy of multi-point boundary crossing time analysis [PDF]

open access: yesAnnales Geophysicae, 2011
Recent multi-spacecraft studies of solar wind discontinuity crossings using the timing (boundary plane triangulation) method gave boundary parameter estimates that are significantly different from those of the well-established single-spacecraft ...
J. Vogt   +3 more
doaj   +1 more source

Cluster electron observations of the separatrix layer during traveling compression regions [PDF]

open access: yes, 2005
[ 1] We present Cluster 4-point observations of electrons during traveling compression regions ( TCRs) on 19 September 2001. The electron and \B\ signatures vary with distance from the plasma sheet, confirming that transient plasma sheet bulges propagate
Balogh, A   +4 more
core   +1 more source

Coordinated interhemispheric SuperDARN radar observations of the ionospheric response to flux transfer events observed by the Cluster spacecraft at the high-latitude magnetopause [PDF]

open access: yesAnnales Geophysicae, 2003
At 10:00 UT on 14 February 2001, the quartet of ESA Cluster spacecraft were approaching the Northern Hemisphere high-latitude magnetopause in the post-noon sector on an outbound trajectory. At this time, the interplanetary magnetic field incident
J. A. Wild   +16 more
doaj   +1 more source

Magnetopause current as seen by Cluster [PDF]

open access: yesAnnales Geophysicae, 2005
The four-spacecraft, magnetic field measurements on Cluster can be combined to produce an accurate determination of the electric current in the magnetopause boundary during stable magnetopause crossings.
M. W. Dunlop, M. W. Dunlop, A. Balogh
doaj   +1 more source

Near-simultaneous magnetotail flux rope observations with Cluster and Double Star [PDF]

open access: yesAnnales Geophysicae, 2007
We present observations of three magnetic flux ropes in the tail of the Earth's magnetosphere on 7 August 2004 by the Cluster and Double Star TC-1 spacecraft.
A. P. Walsh   +9 more
doaj   +1 more source

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