Results 91 to 100 of about 5,320 (271)

Competing source and loss mechanisms due to wave-particle interactions in Earth’s outer radiation belt during the 30 September to 3 October 2012 geomagnetic storm [PDF]

open access: yes, 2014
Drastic variations of Earth’s outer radiation belt electrons ultimately result from various competing source, loss, and transport processes, to which wave-particle interactions are critically important.
Angelopoulos, V.   +19 more
core   +3 more sources

Nonlinear Electron Interactions With Intense VLF Waves From Transmitters

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract The impact on electron lifetimes of nonlinear interactions with the most intense very low frequency (VLF) waves from transmitters has hitherto been neglected in radiation belt codes. Here, we show the presence of a small population of intense wave packets, originating from ground‐based VLF transmitters and reaching 10 mV/m around the magnetic ...
Didier Mourenas   +5 more
wiley   +1 more source

Wide-banded NTC radiation: local to remote observations by the four Cluster satellites [PDF]

open access: yesAnnales Geophysicae, 2015
The Cluster multi-point mission offers a unique collection of non-thermal continuum (NTC) radio waves observed in the 2–80 kHz frequency range over almost 15 years, from various view points over the radiating plasmasphere.
P. M. E. Décréau   +9 more
doaj   +1 more source

Energetic, relativistic and ultra-relativistic electrons: Comparison of long-term VERB code simulations with Van Allen Probes measurements [PDF]

open access: yes, 2015
In this study, we compare long-term simulations performed by the Versatile Electron Radiation Belt (VERB) code with observations from the Magnetic Electron Ion Spectrometer and Relativistic Electron-Proton Telescope instruments on the Van Allen Probes ...
Agapitov   +63 more
core   +3 more sources

Monitoring the plasmapause dynamics at LEO

open access: yes, 2021
<p>In the past decades researchers have revealed links between a series of sub-auroral ionospheric phenomena and the plasmapause (PP) dynamics, such as the mid-latitude ionospheric trough (MIT) and the associated sub-auroral temperature enhancement (SETE), the light-ion trough (LIT), the sub-auroral ion drift (SAID) or the more intense ...
Balázs Heilig   +3 more
openaire   +2 more sources

Equatorial Propagation of the Magnetosonic Mode Across the Plasmapause: 2‐D PIC Simulations

open access: yesJournal of Geophysical Research: Space Physics, 2019
Recent studies have indicated that fast magnetosonic waves (also referred to as equatorial noise) excited far outside the plasmapause cannot propagate deep into the plasmasphere because of the preferential azimuthal propagation of the waves at the source
K. Min   +4 more
semanticscholar   +1 more source

Global Validation of the Data‐Assimilative VERB‐3D Code for the Radiation Belts

open access: yesSpace Weather, Volume 23, Issue 12, December 2025.
Abstract Electrons within Earth's radiation belts exhibit large variability in space and time during geomagnetic storms, which could potentially damage satellites and harm astronauts in space. Physics‐based models describe the evolution of energetic electrons in the radiation belts, but they may suffer from uncertainties and errors, particularly in the
Marina García Peñaranda   +12 more
wiley   +1 more source

Extra Ionization Causing the Anomalous Auroral Sporadic E Layer (Esa) Over the Equatorial Brazilian Region During the Recovery Phase of the Magnetic Storm on 10 May 2024

open access: yesSpace Weather, Volume 23, Issue 12, December 2025.
Abstract The center of the South American Magnetic Anomaly (SAMA), located in southern Brazil, is characterized by enhanced energetic particle precipitation (EPP) at low energies (<40 keV), which can significantly impact the ionosphere during intense geomagnetic storms.
L. C. A. Resende   +17 more
wiley   +1 more source

The structure of field line resonances in a dipole magnetosphere with moving plasma [PDF]

open access: yesAnnales Geophysicae, 2008
A theoretical model of field line resonance in the magnetosphere with a dipole magnetic field and moving plasma was constructed. Motion of medium was simulated by its azimuthal rotation.
D. A. Kozlov, A. S. Leonovich
doaj   +1 more source

Ultralow Frequency Electrodynamics of Magnetosphere‐Ionosphere Interactions Near the Plasmapause During Substorms

open access: yesJournal of Geophysical Research: Space Physics, 2018
Ultra low frequency (ULF) electromagnetic waves have been regularly observed by the CRRES, Cluster, and Van Allen Probes satellites near the plasmapause during substorms.
A. Streltsov, E. Mishin
semanticscholar   +1 more source

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