Results 101 to 110 of about 960 (194)

An empirically observed pitch-angle diffusion eigenmode in the Earth\u27s electron belt near L* = 5.0 [PDF]

, 2014
Using data from NASA\u27s Van Allen Probes, we have identified a synchronized exponential decay of electron flux in the outer zone, near L* = 5.0. Exponential decays strongly indicate the presence of a pure eigenmode of a diffusion operator acting in the
Baker, D. N., Blake, J. B., Claudepierre, S., Clemmons, J. H., Fennell, Joseph F., O\u27Brien, T. P., Reeves, Geoffrey, Roeder, J., Spence, Harlan E.   +8 more
core   +1 more source

Approximate analytical formulation of radial diffusion and whistler-induced losses from a preexisting flux peak in the plasmasphere [PDF]

, 2015
International audienceModeling the spatiotemporal evolution of relativistic electron fluxes trapped in the Earth's radiation belts in the presence of radial diffusion coupled with wave-induced losses should address one important question: how deep can ...
Agapitov, O. V., Artemyev, A.V., Mourenas, D   +2 more
core   +3 more sources

Diffuse Auroral Precipitation Effects on Ionospheric Conductance During Magnetic Storms: Comparison of Simulated and Incoherent Radar Scatter‐Inferred Conductance

Journal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.
Abstract We investigated the effects of storm‐time diffuse auroral electron precipitation on ionospheric Pedersen and Hall conductivity and conductance during the CME‐driven St. Patrick's Day storms of 2013 (min Dst = −131 nT) and 2015 (min Dst = −233 nT).
Margaret W. Chen, Colby Lemon, James Hecht, George V. Khazanov, J. Scott Evans, Stephen Kaeppler, Christine Gabrielse, Shun‐Rong Zhang   +7 more
wiley   +1 more source

VLF waves from ground‐based transmitters observed by the Van Allen Probes: Statistical model and effects on plasmaspheric electrons

Geophysical Research Letters, 2017
Whistler mode very low frequency (VLF) waves from powerful ground‐based transmitters can resonantly scatter energetic plasmaspheric electrons and precipitate them into the atmosphere.
Qianli Ma, Didier Mourenas, Wen Li, Anton Artemyev, Richard M. Thorne   +4 more
doaj   +1 more source

Inner magnetospheric plasma interactions and coupling with the ionosphere [PDF]

, 2005
The inner magnetosphere occupies a vast volume in space containing a relatively low-density mixture of hot and cold plasmas: the ring current, plasmasphere and radiation belt.
Mei-Ching Fok, Thomas E. Moore, Yusuke Ebihara   +2 more
core   +1 more source

Wave-particle interactions in the outer radiation belts [PDF]

, 2015
Data from the Van Allen Probes have provided the first extensive evidence of non-linear (as opposed to quasi-linear) wave-particle interactions in space with the associated rapid (fraction of a bounce period) electron acceleration to hundreds of keV by ...
Agapitov, O. V., Artemyev, A. V., Krasnoselskikh, V. V., Mourenas, D., Mozer, F. S.   +4 more
core   +3 more sources

Real‐Time Forecasting of Pitch Angle‐Resolved Differential Electron Flux at MEO Using Solar Wind and Geomagnetic Indices

Space Weather, Volume 23, Issue 9, September 2025.
Abstract We present a real‐time operational machine learning model based on convolutional neural network for forecasting pitch angle‐resolved differential electron flux at Medium Earth Orbit (MEO) altitudes in the outer radiation belt. Unlike previous studies, our model is designed for immediate operational use, relying exclusively on real‐time ...
Quan Wang, Lun Xie, Ying Xiong, SuiYan Fu   +3 more
wiley   +1 more source

POES satellite observations of EMIC-wave driven relativistic electron precipitation during 1998-2010 [PDF]

, 2013
[1] Using six Polar Orbiting Environmental Satellites (POES) satellites that have carried the Space Environment Module-2 instrument package, a total of 436,422 individual half-orbits between 1998 and 2010 were inspected by an automatic detection ...
Carson, Bonar R., Clilverd, Mark A., Rodger, Craig J.   +2 more
core   +1 more source

LSTM‐Based Modeling of Radiation Belt Electrons Using MagEIS Observations From RBSP Satellites

Space Weather, Volume 23, Issue 9, September 2025.
Abstract This study presents the development and validation of a Long Short‐Term Memory neural network model for predicting electron fluxes within the Earth's radiation belts, specifically covering an electron energy range from 33 to 2,619 keV, using data from the Magnetic Electron Ion Spectrometer onboard the Van Allen Probes (RBSP).
Biao Wang, Meihua Fang, Mengyun He, Yukuan Ma   +3 more
wiley   +1 more source

Energetic Electron Diffusion and Precipitation Driven by Ducted Hiss Waves in High Density Irregular Region

Geophysical Research Letters
Plasmaspheric hiss plays an important role in the electron precipitation and the slot formation in radiation belts. Recent studies show the whistler‐mode waves can be guided in the density irregularities, performing parallel propagation.
Bopu Feng, Haimeng Li, Rongxin Tang, Meng Zhou, Zhihai Ouyang, Zhigang Yuan, Dedong Wang, Xiongdong Yu, Ying Xiong, Zhou Chen, An Yuan, Yingqiao Cheng   +11 more
doaj   +1 more source