Results 51 to 60 of about 334,315 (204)

Noon ionospheric signatures of a sudden commencement following a solar wind pressure pulse [PDF]

Annales Geophysicae, 2002
Using experimental data from the Cutlass Super-DARN HF radars and from a subset of ground magnetometers of the IMAGE Scandinavian chain, the response of the ionosphere in the noon sector to a solar wind pressure increase is studied. The emphasis is
A. Vontrat-Reberac, A. Vontrat-Reberac, A. Vontrat-Reberac, J.-C. Cerisier, N. Sato, M. Lester   +5 more
doaj   +1 more source

Model‐Data Comparison of Electron Energization Associated With Kinetic Alfvén Waves in the Near Earth Magnetotail

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract A model‐data comparison between Gyrofluid‐Kinetic Electron simulations and MMS satellite observations of kinetic Alfvén waves (KAW) and associated electron energization in the near Earth magnetotail is presented. The observations reveal 10 keV electron beams embedded within intense KAW field‐aligned currents.
A. J. Hull, P. A. Damiano, J. R. Johnson, C. C. Chaston   +3 more
wiley   +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

Empirical Parameterizations of ULF Power and Drift Orbit Averaged Radial Diffusion Coefficients From Ground Magnetometers for Different MLT

Earth and Space Science, Volume 13, Issue 11, November 2026.
Abstract Radial diffusion, driven by ultra‐low frequency (ULF) waves, is an important process for the transport of electrons in the outer radiation belt. Ground magnetometers give us constant observations of such ULF waves but their usefulness is limited by the models used to transform ground measurements into their progenitor fields in space.
S. Dimitrakoudis, G. Balasis, A. Z. Boutsi, I. A. Daglis, C. Papadimitriou, C. Katsavrias, M. Georgiou, J. Lichtenberger   +7 more
wiley   +1 more source

The Spatial Localization of Storm‐Time ULF Waves Due To Plasmaspheric Plumes

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The generation and propagation of Ultra Low Frequency (ULF) waves are intrinsically coupled to the cold plasma population in the terrestrial magnetosphere. During geomagnetic storms, extreme reconfigurations of the cold plasma create a complex and dynamic system that drastically modifies this coupling.
J. K. Sandhu, K. R. Murphy, I. J. Rae, T. K. Yeoman, A. W. Degeling, A. Osmane, D. P. Hartley, M.‐T. Walach   +7 more
wiley   +1 more source

On the relationship between auroral absorption, electrojets currents and plasma convection [PDF]

, 2009
In this study, the relationship between auroral absorption, electrojet currents, and ionospheric plasma convection velocity is investigated using a series of new methods where temporal correlations are calculated and analysed for different events and ...
R. A. Makarevich, Makarevich, R. A., Kellerman, A.C., A. C. Kellerman, F. Honary, T. L. Hansen, Makarevich, R.A., Honary, F., Hansen, T.L., Hansen, Truls Lynne, Kellerman, A. C.   +10 more
core   +2 more sources

Current sheets in planetary magnetospheres [PDF]

Plasma Physics and Controlled Fusion, 2019
Abstract In this article we aim to highlight the problems related to the structure and stability of the comparatively thin current sheets that were relatively recently discovered by space missions in the magnetospheres of the Earth and planets, as well as in the solar wind. These magnetoplasma structures are universal in collisionless
Lev Zelenyi, Helmi Malova, Elena Grigorenko, Victor Popov, Dominique Delcourt   +4 more
openaire   +3 more sources

Investigation of energy transport and thermospheric upwelling during quiet magnetospheric and ionospheric conditions from the studies of low- and middle-altitude cusp [PDF]

Annales Geophysicae, 2015
We investigate energy fluxes and small, kilometre-scale Birkeland currents in the magnetospheric cusp at a 1–3 Earth radii altitude and in the ionosphere using satellites when they were, according to the Tsyganenko model, in magnetic conjunction ...
T. Živković, T. Živković, S. Buchert, P. Ritter, L. Palin, H. Opgenoorth   +5 more
doaj   +1 more source

The magnetosphere-ionosphere observatory (MIO) mission concept

Frontiers in Astronomy and Space Sciences, 2022
MIO (Magnetosphere-Ionosphere Observatory) is designed to definitively fix a cause-and-effect problem: In the nightside magnetosphere-ionosphere system we don’t know what is connected to what.
Joseph E. Borovsky, Brian A. Bauer, Michael Holloway   +2 more
doaj   +1 more source

Van Allen Probes Observations of a Fundamental Poloidal Wave in the Plasmasphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract All past spacecraft observations of fundamental poloidal Alfvén (P1) waves attributed to ion drift resonance have been made outside the plasmasphere. In this study, we present the first spacecraft observations of a plasmaspheric P1 wave driven by that resonance.
Kazue Takahashi, Tomotsugu Yamakawa, Matina Gkioulidou, D. G. Mitchell, Jerry W. Manweiler   +4 more
wiley   +1 more source