Results 31 to 40 of about 320,647 (167)

Magnetosphere dynamics during the 14 November 2012 storm inferred from TWINS, AMPERE, Van Allen Probes, and BATS-R-US–CRCM [PDF]

Annales Geophysicae, 2018
During the 14 November 2012 geomagnetic storm, the Van Allen Probes spacecraft observed a number of sharp decreases (dropouts) in particle fluxes for ions and electrons of different energies.
N. Buzulukova, N. Buzulukova, J. Goldstein, J. Goldstein, M.-C. Fok, A. Glocer, P. Valek, P. Valek, D. McComas, H. Korth, B. Anderson   +10 more
doaj   +1 more source

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

Magnetospheric and ionospheric vortices response to negative solar wind dynamic pressure pulse

Frontiers in Astronomy and Space Sciences
In this work, we present two individual cases showing that a negative solar wind dynamic pressure pulse can lead to magnetospheric decompression and generate a clockwise vortex in the duskside magnetosphere.
Huayu Zhao, Huayu Zhao, Huigen Yang, Zejun Hu, Dehong Huang, Bin Li, Beichen Zhang, Jianjun Liu   +7 more
doaj   +1 more source

Instability of the magnetosphere-ionosphere convection and formation of auroral arcs [PDF]

Annales Geophysicae, 1994
In this paper we study an instability of the plasma moving towards the Earth near the inner plasma sheet boundary. We include both the interchange instability of the plasma sheet and the magnetosphere-ionosphere interaction instability caused by an ...
A. E. Kozlovsky, W. B. Lyatsky
doaj   +1 more source

Ionospheric control of the magnetosphere: conductance [PDF]

Annales Geophysicae, 2004
It is well known that the ionosphere plays a role in determining the global state of the magnetosphere. The ionosphere allows magnetospheric currents to close, thereby allowing magnetospheric convection to occur.
A. J. Ridley, T. I. Gombosi, D. L. DeZeeuw   +2 more
doaj   +1 more source

Auroral turbulence of the ionospheric convection [PDF]

Vestnik MGTU, 2016
The formation of the two-dimensional auroral structures in the cold ionospheric-magnetospheric plasma under convection has been considered. The convection inhomogeneity leads to appearance of the currents across and along the magnetic field lines.
Volkov М. А.
doaj   +1 more source

A Machine Learning‐Based Model of Three‐Dimensional Ion Fluxes in the High‐Altitude Earth's Northern Cusp

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Magnetic reconnection at the dayside magnetopause is the primary pathway for transferring mass, momentum, and energy from the solar wind into the terrestrial magnetosphere. Previous studies have shown that the spatiotemporal dynamics of dayside magnetic reconnection can be inferred remotely from properties of Earth's cusps, specifically their ...
Gonzalo Cucho‐Padin, David Sibeck, Xueyi Wang, Daniel da Silva, Xiaolei Li, Gowtan Valluri, Cristian Ferradas, Hyunju Connor, Yu Lin   +8 more
wiley   +1 more source

Reconfiguration of Mercury's Exosphere During Strong Space Weather Events

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Mercury is exposed to various space weathering processes, which alter the surface and cause emission of atoms and molecules into the exosphere. The exosphere thus allows remote insights into the surface composition and erosion processes, with the emission of refractory elements such as Ca and Mg typically being dominated by micrometeoroid ...
P. S. Szabo, S. R. Carberry Mogan, A. R. Poppe, S. Fatemi, W. J. Sun, J. T. Zhao   +5 more
wiley   +1 more source

The six-month line in geomagnetic long series [PDF]

Annales Geophysicae, 2004
Daily means of the horizontal components X (north) and Y (east) of the geomagnetic field are available in the form of long series (several tens of years). Nine observatories are used in the present study, whose series are among the longest.
J. L. Le Mouël, E. Blanter, M. Shnirman
doaj   +1 more source

Chorus Wave‐Induced Ionospheric Variability

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Electron microbursts are short‐lived but intense electron precipitation and constitute a significant source of electron losses into the ionosphere and lower atmosphere. They are primarily produced by wave‐particle interaction with chorus waves in the magnetosphere.
Lunjin Chen, Grant D. Berland, Robert A. Marshall, Jun Liang, Huayue Chen, Zhiyang Xia   +5 more
wiley   +1 more source