Results 61 to 70 of about 5,557 (207)

Modeling of the cold electron plasma density for radiation belt physics

Frontiers in Astronomy and Space Sciences, 2023
This review focusses strictly on existing plasma density models, including ionospheric source models, empirical density models, physics-based and machine-learning density models.
J.-F. Ripoll, J.-F. Ripoll, V. Pierrard, V. Pierrard, G. S. Cunningham, X. Chu, K. A. Sorathia, D. P. Hartley, S. A. Thaller, V. G. Merkin, G. L. Delzanno, S. De Pascuale, A. Y. Ukhorskiy   +12 more
doaj   +1 more source

Ionosphere/Plasmasphere sounding with ground and space-based GNSS observations [PDF]

, 2016
Applying a methodology developed and tested in previous studies, the contribution from the ionospheric and plasmaspheric regions to the total electron content (measured by ground receivers) is analyzed.
González Casado, Guillermo, Juan Zornoza, José Miguel, Sanz Subirana, Jaume, Shao, Yixie   +3 more
core   +1 more source

Whistler‐Mode Waves in the Density Double Ducts

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract We report the recent observation of a density duct structure in the equatorial plasmasphere, identified using data from the NASA Van Allen Probes (RBSP). The structure consists of a low‐density duct located above a high‐density duct, forming a “double duct” system capable of simultaneously trapping and guiding multiple whistler‐mode waves at ...
Salman A. Nejad, Anatoly V. Streltsov
wiley   +1 more source

Response of convection electric fields in the magnetosphere to IMF orientation change [PDF]

, 2009
[1] The transient response of convection electric fields in the inner magnetosphere to southward turning of the interplanetary magnetic field (IMF) is investigated using in‐situ electric field observations by the CRRES and Akebono spacecraft.
Brautigam, D., Kikuchi, T., Matsuoka, A., Nagatsuma, T., Nishimura, Y., Ono, T., Shinbori, A., Wygant, J.   +7 more
core   +1 more source

Uncovering the Generation Mechanism of Low‐Frequency Chorus Waves (<0.1 fce_eq ${\boldsymbol{f}}_{\mathbf{c}\mathbf{e}\mathbf{\_}\mathbf{e}\mathbf{q}}$) During Active Geomagnetic Environments

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Low‐frequency chorus waves (below 0.1 fce_eq ${f}_{\text{ce}\_\text{eq}}$, where fce_eq ${f}_{\text{ce}\_\text{eq}}$ is equatorial electron gyrofrequency) can induce the depletion of relativistic electrons in Earth's radiation belts by effective pitch angle scattering, demonstrating distinct effects on radiation belt dynamics compared to ...
Xuan Zhou, Xinliang Gao, Dedong Wang, Jiuqi Ma, Quanming Lu   +4 more
wiley   +1 more source

Links of the Plasmapause With Other Boundary Layers of the Magnetosphere: Ionospheric Convection, Radiation Belt Boundaries, Auroral Oval

Frontiers in Astronomy and Space Sciences, 2021
The plasmapause marks the limit of the plasmasphere and is characterized by a sudden change in plasma density. This can influence the other regions of the magnetosphere, including due to different waves circulating inside and outside the plasmasphere. In
V. Pierrard, V. Pierrard, E. Botek, J.-F. Ripoll, J.-F. Ripoll, S. A. Thaller, M. B. Moldwin, M. Ruohoniemi, G. Reeves   +8 more
doaj   +1 more source

Proposal for an ionosphere/plasmasphere monitoring system

Annales Geophysicae, 1994
Abstract. A space-based satellite system suited for long-term monitoring of the Earth's ionosphere/plasmasphere systems is proposed. The monitoring system consists of a network of radio beacon satellites capable of measuring the ionospheric and plasmaspheric electron content on a continuous base with high time resolution.
Jakowski, N., Bettac, H.-D.
openaire   +8 more sources

Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm [PDF]

, 2014
The recent launching of Van Allen probes provides an unprecedent opportunity to investigate variations of the radiation belt relativistic electrons. During the 17-19 March 2013 storm, the Van Allen probes simultaneously detected strong chorus waves and ...
Albert, Albert, Baker, D. N., Baker, D. N., Brautigam, Ding, Glauert, Horne, Horne, Horne, R. B., Kataoka, Kletzing, C. A., Kozyra, Li, Li, Li, Lin, Lyons, Mauk, Morley, Reeves, G. D., Sheeley, Shprits, Summers, Tao, Thorne, Thorne, R. M., Thorne, R. M., Tu, Vasyliunas, Viñas, Wygant, J. R., Xiao, Xiao, Xiao, Xiao   +35 more
core   +3 more sources

Effects of the May 2024 Solar Storm on the Earth's Radiation Belts Observed by CALET on the International Space Station

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract In May 2024, extraordinary solar activity triggered a powerful solar storm, impacting Earth and producing the extreme geomagnetic storm of 10‐11 May, the most intense since 2003. This had significant effects on the magnetosphere, leading to the creation of a new long‐lasting component of relativistic electrons and to flux changes in the South ...
A. Ficklin, A. Bruno, L. Blum, N. Cannady, T. G. Guzik, R. Kataoka, K. Munakata, Y. Akaike, S. Torii   +8 more
wiley   +1 more source

Mode trapping in the plasmasphere [PDF]

Journal of Geophysical Research: Space Physics, 2008
As a result of its steplike density profile, combined with the monotonically increasing dipole magnetic field close to the Earth, compressional waves propagating outside the plasmapause can tunnel through and be trapped in a narrow layer that acts as a potential well.
H. Turkakin, R. Marchand, Z. C. Kale
openaire   +1 more source