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Relativistic Electron Model in the Outer Radiation Belt Using a Neural Network Approach

open access: yesSpace Weather, 2021
We present a machine‐learning‐based model of relativistic electron fluxes >1.8 MeV using a neural network approach in the Earth's outer radiation belt.
Xiangning Chu   +12 more
doaj   +2 more sources

Lightning-induced relativistic electron precipitation from the inner radiation belt [PDF]

open access: yesNature Communications
The Earth’s radiation belts are maintained by a number of acceleration, loss and transport mechanisms, and the electron fluxes at any given time are highly variable.
Max Feinland   +5 more
doaj   +2 more sources

Quantifying the relative contributions of substorm injections and chorus waves to the rapid outward extension of electron radiation belt [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2014
We study the rapid outward extension of the electron radiation belt on a timescale of several hours during three events observed by Radiation Belt Storm Probes and Time History of Events and Macroscale Interactions during Substorms satellites and ...
Zhenpeng Su, Hui Zhu, Fuliang Xiao
exaly   +4 more sources

Processes in auroral oval and outer electron radiation belt [PDF]

open access: yesEarth, Planets and Space, 2018
We have analyzed the role of auroral processes in the formation of the outer radiation belt, considering that the main part of the auroral oval maps to the outer part of the ring current, instead of the plasma sheet as is commonly postulated.
Elizaveta E. Antonova   +6 more
doaj   +2 more sources

A Framework for Understanding and Quantifying the Loss and Acceleration of Relativistic Electrons in the Outer Radiation Belt During Geomagnetic Storms

open access: yesSpace Weather, 2020
We present detailed analysis of the global relativistic electron dynamics as measured by total radiation belt content (RBC) during coronal mass ejection (CME) and corotating interaction region (CIR)‐driven geomagnetic storms. Recent work has demonstrated
Kyle R. Murphy   +7 more
doaj   +2 more sources

A model of the secondary radiation belt [PDF]

open access: yesJournal of Geophysical Research, 2008
Products of nuclear reactions between primary radiation belt protons and constituents of the tenuous upper atmosphere form a collocated secondary radiation belt.
R S Selesnick, M D Looper, R A Mewaldt
exaly   +3 more sources

Drift phase resolved diffusive radiation belt model: 1. Theoretical framework

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Most physics-based models provide a coarse three-dimensional representation of radiation belt dynamics at low time resolution, of the order of a few drift periods. The description of the effect of trapped particle transport on radiation belt intensity is
Solène Lejosne, Jay M. Albert
doaj   +1 more source

A data assimilation-based forecast model of outer radiation belt electron fluxes

open access: yesEarth and Planetary Physics, 2023
Because radiation belt electrons can pose a potential threat to the safety of satellites orbiting in space, it is of great importance to develop a reliable model that can predict the highly dynamic variations in outer radiation belt electron fluxes.
Yuan Lei   +5 more
doaj   +1 more source

Dynamics of the inner electron radiation belt: A review

open access: yesEarth and Planetary Physics, 2023
The Van Allen radiation belts are an extraordinary science discovery in the Earth magnetosphere and consist of two electron belts. The inner Van Allen belt contains electrons of 10s to 100s keV; the outer belt consists mainly of 0.1−10 MeV electrons ...
YuXuan Li   +5 more
doaj   +1 more source

Differentiating Between the Leading Processes for Electron Radiation Belt Acceleration

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Many spacecraft fly within or through a natural and variable particle accelerator powered by the coupling between the magnetosphere and the solar wind: the Earth’s radiation belts.
Solène Lejosne   +10 more
doaj   +1 more source

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