Results 21 to 30 of about 11,853 (228)

Identification of electron field‐aligned current systems in Saturn's magnetosphere [PDF]

Journal of Geophysical Research: Space Physics, 2012
Based on the analysis of 7 years of Cassini electron plasma spectrometer data near Saturn's equatorial plane, we computed the average directional electron current in the Northern and the Southern hemispheres separately. We determined the net current density by subtracting the downward electron current density (equator to the ionosphere) from the upward
Schippers, P., Andre, N., Gurnett, D., Lewis, G., Persoon, A., Coates, A.   +5 more
openaire   +3 more sources

Organization of the magnetosphere during substorms [PDF]

, 2011
The change in degree of organization of the magnetosphere during substorms is investigated by analyzing various geomagnetic indices, as well as interplanetary magnetic field z-component and solar wind flow speed.
Abarbanel, Athanasiu, Aumaitre, Bak, Baker, Chang, Chapman, Chapman, Davies, Eckmann, Feldstein, Freeman, Frey, Gardiner, Golovchanskaya, Horton, K. Rypdal, Kaplan, Kaplan, Klimas, Klimas, Kozelov, Lewis, Mackey, March, March, Marwan, Marwan, Rypdal, Rypdal, Sharma, Sitnov, T. Živković, Takens, Trulla, Tsurutani, Uritsky, Uritsky, Valdivia, Valdivia, Vennestrøm, Vörös, Wanliss, Webber, Živković   +44 more
core   +2 more sources

Linear Versus Nonlinear Methods for Detecting Magnetospheric and Ionospheric Current Systems Patterns

Earth and Space Science, 2020
There is a growing interest in the development of models and methods of analysis aimed to recognize in the geomagnetic field signals the different contributions coming from the various sources both internal and external to the Earth.
T. Alberti, F. Giannattasio, P. De Michelis, G. Consolini   +3 more
doaj   +1 more source

Modeling of ion dynamics in the inner geospace during enhanced magnetospheric activity [PDF]

Annales Geophysicae, 2016
We investigate the effect of magnetic disturbances on the ring current buildup and the dynamics of the current systems in the inner geospace by means of numerical simulations of ion orbits during enhanced magnetospheric activity.
C. Tsironis, A. Anastasiadis, C. Katsavrias, C. Katsavrias, I. A. Daglis   +4 more
doaj   +1 more source

Testing the SOC hypothesis for the magnetosphere [PDF]

, 2000
As noted by Chang, the hypothesis of Self-Organised Criticality provides a theoretical framework in which the low dimensionality seen in magnetospheric indices can be combined with the scaling seen in their power spectra and the recently-observed plasma ...
Angelopoulos, Angelopoulos, Aschwanden, Bak, Bak, Bak, Bak, Baker, Baker, Baker, Bargatze, Bendat, Boffetta, Cardy, Carreras, Chang, Chang, Chapman, Chapman, Consolini, Davis, Dendy, Dendy, Einaudi, Freeman, Freeman, Grassberger, Hastings, Horbury, Horton, Horton, Huang, Hwa, Jensen, Jensen, Kamide, Katz, Klimas, Klimas, Lichtenberg, Lu, M.P Freeman, Malamud, N.W Watkins, Osborne, Palmer, Pedrosa, Pelletier, Pinho, R.O Dendy, Roberts, Rodríguez-Iturbe, Rowlands, S.C Chapman, Takalo, Takalo, Takalo, Tsurutani, Uritsky, Vassiliadis, Vörös, Vörös, Watkins, Zapperi, Zelenyi   +64 more
core   +2 more sources

Morphology of the ring current derived from magnetic field observations [PDF]

Annales Geophysicae, 2004
Our examination of the 20 years of magnetospheric magnetic field data from ISEE, AMPTE/CCE and Polar missions has allowed us to quantify how the ring current flows and closes in the magnetosphere at a variety of disturbance levels.
G. Le, C. T. Russell, K. Takahashi
doaj   +1 more source

Storm time field-aligned currents and magnetosphere-ionosphere coupling process

地球与行星物理论评, 2022
Field aligned currents (FACs), also known as Birkland current, are flowing along the magnetic field line between the ionosphere and magnetosphere. They play an essential role in transferring mass, energy, and momentum from the magnetosphere to the ...
Hui Wang
doaj   +1 more source

Revised time-of-flight calculations for high-latitude geomagnetic pulsations using a realistic magnetospheric magnetic field model [PDF]

, 2005
We present a simple time-of-flight analysis of Alfvén pulsations standing on closed terrestrial magnetic field lines. The technique employed in this study in order to calculate the characteristic period of such oscillations builds upon earlier time-of ...
Waters, C. L., Wild, James A., Yeoman, T. K.   +2 more
core   +1 more source

Experimental study of the formation of inverted-V structures and their stratification using AUREOL-3 observations [PDF]

Annales Geophysicae, 2000
Multiple inverted-V structures are commonly observed on the same auroral zone crossing by a low-altitude orbiting satellite. Such structures appear grouped and apparently result from an ionospheric and/or magnetospheric mechanism of stratification ...
O. Luízar, O. Luízar, M. V. Stepanova, J. M. Bosqued, E. E. Antonova, R. A. Kovrazhkin   +5 more
doaj   +1 more source

The local dayside reconnection rate for oblique interplanetary magnetic fields [PDF]

, 2016
We present an analysis of local properties of magnetic reconnection at the dayside magnetopause for various interplanetary magnetic field (IMF) orientations in global magnetospheric simulations.
Cassak, Paul A., Komar, Colin M.
core   +3 more sources