Results 91 to 100 of about 30,333 (190)

Unveiling Energetic Particle Dynamics in the Near‐Earth Environment From CubeSat Missions

AGU Advances
The discovery of the Van Allen radiation belts marked a prominent milestone in space physics. Recent advances, through the measurements of two CubeSat missions, have shed new light on the dynamics of energetic particles in the near‐Earth environment ...
Xinlin Li
doaj   +1 more source

Ensemble modeling of long-term radiation belt dynamics: accounting for variability in radial diffusion

Frontiers in Astronomy and Space Sciences
This study presents ensemble modeling of outer radiation belt dynamics observed by Van Allen Probes throughout 2017 using DREAM3D simulations.
Sang-Yun Lee, Sang-Yun Lee, Weichao Tu, Gregory S. Cunningham, Gregory S. Cunningham, Misa M. Cowee   +5 more
doaj   +1 more source

Shock-induced prompt relativistic electron acceleration in the inner magnetosphere [PDF]

, 2015
We present twin Van Allen Probes spacecraft observations of the effects of a solar wind shock impacting the magnetosphere on 8 October 2013. The event provides details both of the accelerating electric fields associated with the shock and the response of
Baker, D. N., Boyd, A. J., Erickson, P. J., Foster, J. C., Hudson, M. K., Spence, Harlan E., Wygant, J. R.   +6 more
core   +3 more sources

Challenges of understanding the variability of the Van Allen radiation belts

, 2023
Understanding the variability of the Van Allen radiation belts, populations of energetic particles trapped on fairly stable orbits within the Earth’s magnetosphere, has been one of the outstanding questions in heliophysics research. NASA’s Van Allen Probes Mission (2012-2019), two identical probes in low inclination geo-transfer orbit (GTO), has been ...
openaire   +2 more sources

Unlocking the Secrets of Van Allen Radiation Belt Dynamics

, 2015
Overview: Van Allen Radiation Belts and Why do we care? Introduction: Characterizing the radiation belt dynamics. Modeling Work: Source, Transport, and Loss Conclusion: Challenges and Opportunities.
openaire   +2 more sources

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

Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission [PDF]

, 2013
The HOPE mass spectrometer of the Radiation Belt Storm Probes (RBSP) mission (renamed the Van Allen Probes) is designed to measure the in situ plasma ion and electron fluxes over 4π sr at each RBSP spacecraft within the terrestrial radiation belts.
Baldonado, J. R., Funsten, H. O., Guthrie, A. A., Harper, R. W., Henderson, K. C., Kihara, K. H., Lake, J. E., Larsen, B. A., MacDonald, E. A., Puckett, A. D., Skoug, R. M., Spence, Harlan E., Vigil, V. J.   +12 more
core   +1 more source

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

Space Weather
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.
Marina García Peñaranda, Yuri Y. Shprits, Alexander Y. Drozdov, Angélica M. Castillo Tibocha, Bernhard Haas, Mátyás Szabó‐Roberts, Dedong Wang, Sebastián Cervantes, Yoshizumi Miyoshi, Nana Higashio, Takefumi Mitani, Takeshi Takashima, Iku Shinohara   +12 more
doaj   +1 more source

Explaining the dynamics of the sub-relativistic electron third belt in the Earth’s radiation belts by using medium Earth orbit satellite observations

Earth and Planetary Physics
The Earth’s electron radiation belts typically exhibit a two-belt structure. However, observations from the Van Allen Probes revealed the existence of a three-belt structure.
JiaLi Chen, Hong Zou, YuGuang Ye
doaj   +1 more source

Resonant Scattering of Radiation Belt Electrons by Off‐Equatorial Magnetosonic Waves

Geophysical Research Letters, 2018
Fast magnetosonic (MS) waves are commonly regarded as electromagnetic waves that are characteristically confined within ±3° of the geomagnetic equator. We report two typical off‐equatorial MS events observed by Van Allen Probes, that is, the 8 May 2014 ...
Binbin Ni, Zhengyang Zou, Song Fu, Xing Cao, Xudong Gu, Zheng Xiang   +5 more
doaj   +1 more source