Results 221 to 230 of about 1,013,936 (266)

The Modulation of Plasma and Waves by Background Electron Density Irregularities in the Inner Magnetosphere

Geophysical Research Letters, 2020
The background cold electron density plays an important role in plasma and wave dynamics. Here, we investigate an event with clear modulation of the particle fluxes and wave intensities by background electron density irregularities based on Van Allen ...
C. Yue, Q. Ma, C. Jun, J. Bortnik, Q. Zong, Xuzhi Zhou, E. Jang, G. Reeves, H. Spence, J. Wygant   +9 more
semanticscholar   +1 more source

The Warm Plasma Composition in the Inner Magnetosphere During 2012–2015

Journal of Geophysical Research: Space Physics, 2017
J -M Jahn, J Goldstein, G D Reeves
exaly   +2 more sources

Plasma boundaries in the inner magnetosphere

Journal of Geophysical Research: Space Physics, 1986
Plasma boundaries in the inner magnetosphere are investigated with measurements chiefly by the DE 1 and 2 spacecraft. The boundaries studied here are: (1) the low‐energy (or thermal) ion transition (LEIT) frequently observed at or near the conventional plasmapause density gradient, defined here as the outer boundary of observable, cold, isotropic light
J. L. Horwitz, S. Menteer, J. Turnley, J. L. Burch, J. D. Winningham, C. R. Chappell, J. D. Craven, L. A. Frank, D. W. Slater   +8 more
openaire   +1 more source

Particle Acceleration in the Inner Magnetosphere

2013
Particle acceleration is an important consequence of eruptive or catastrophic configuration changes in space plasmas. It is also a feature associated with more persistent structures, such as thin boundary layers, which exhibit strong gradients, instabilities, and turbulence.
D.N. Baker, S.R. Elkington, X. Li, M.J. Wiltberger   +3 more
openaire   +1 more source

Drivers of the Inner Magnetosphere

2013
This paper addresses the role of the electric fields in the inner magnetosphere dynamics by reviewing observations and model results, especially whether the stormtime ring current intensification is generated by large-scale convection alone or together with substorm-associated variations.
openaire   +1 more source

Electrodynamics of convection in the inner magnetosphere

1984
During the past ten years, substantial progress has been made in the development of quantitative models of convection in the magnetosphere and of the electrodynamic processes that couple that magnetosphere and ionosphere. Using a computational scheme first proposed by Vasyliunas, the convection models under consideration separate the three-dimensional ...
R. W. Spiro, R. A. Wolf
openaire   +1 more source

Inner Magnetospheric Modeling with the Rice Convection Model

Space Science Reviews, 2003
The Rice Convection Model (RCM) is an established physical model of the inner and middle magnetosphere that includes coupling to the ionosphere. It uses a many-fluid formalism to describe adiabatically drifting isotropic particle distributions in a self-consistently computed electric field and specified magnetic field.
Frank Toffoletto, Stanislav Sazykin, Robert Spiro, Richard Wolf   +3 more
openaire   +1 more source

Storms in the Inner Magnetosphere

2010
The inner magnetosphere containing the plasmasphere, ring current and radiation belts is a key domain of magnetospheric storms from both physical and practical viewpoints. The growth, decay and asymmetries of the ring current are considered as main indicators of the large-scale storm evolution and the electron belts respond strongly to the storm ...
openaire   +1 more source

MHD eigenmodes in the inner magnetosphere

2006
Many ultra-low-frequency phenomena observed in the inner magnetosphere are attributed to magnetohydrodynamic (MHD) eigenmodes. We review theoretical investigations of the compressional and shear (Alfven) eigenmodes and the coupling between them. The properties of the eigenmodes are strongly controlled by the spatial variation of the Alfven speed ...
Dong-Hun Lee, Kazue Takahashi
openaire   +1 more source

Magnetospheric substorms: An inner-magnetospheric modeling perspective

2002
Abstract Kilovolt electrons cause satellite anomalies through surface charging and frequently interfere with the operation of geosynchronous spacecraft. The Magnetospheric Specification Model was designed to specify kilovolt electron fluxes at and near synchronous orbit, and while it has seen limited operational use, its accuracy is not high.
openaire   +1 more source