Results 81 to 90 of about 829 (188)

Unraveling the Mystery of Earth's Space Radiation Environment Loss Processes: Meeting Report

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract On 10 June and 27 September 2024, two workshops were held at GFZ Potsdam under the umbrella of the Geo. X Research Network of Geosciences to discuss the unresolved question of the overestimation and lack of scattering of modeled ring current electrons during geomagnetic storms.
Bernhard Haas, Alexander Y. Drozdov, Jerry Goldstein, Raluca Ilie, Alwin Roy, Yangyang Shen, Katja Stoll, Ivan Vasko, Dedong Wang, Wei Wang   +9 more
wiley   +1 more source

Dependence of Plasmaspheric Hiss Power on ωpe/Ωce

Geophysical Research Letters
Plasmaspheric hiss waves play a key role in scattering energetic electrons and are often modeled in the inner magnetosphere using empirical hiss power maps parameterized by L shell.
Mingyue Lu, Hui Zhu, Yingying Zhao, Huicong Chen, Zhijie Qin, Zhenghao She   +5 more
doaj   +1 more source

Statistics of whistler mode waves in the outer radiation belt: Cluster STAFF-SA measurements [PDF]

, 2013
International audience[1] ELF/VLF waves play a crucial role in the dynamics of the radiation belts and are partly responsible for the main losses and the acceleration of energetic electrons.
Agapitov, Oleksiy, Artemyev, Anton, Balikhin, Michael, Breuillard, Hugo, Khotyaintsev, Yuri V., Krasnoselskikh, Vladimir, Mourenas, Didier, Rolland, Guy   +7 more
core   +3 more sources

Interpolating Electron Diffusion Coefficients in Earth's Radiation Belts: A Neural Network Model Inspired by Video Frame Interpolation

Space Weather, Volume 23, Issue 11, November 2025.
Abstract Many numerical models have been built to uncover the physical mechanisms governing radiation belt dynamics and enable real‐time forecasting. The diffusion coefficient, as a critical input for these models, is usually obtained through linear interpolation from precomputed diffusion coefficient libraries.
Jianhang Wang, Zheng Xiang, Binbin Ni, Junhu Dong, Yangxizi Liu, Jingle Hu, Haozhi Guo, Jiakun Dai   +7 more
wiley   +1 more source

Correlation Between Radiation Enhancements at Aviation Altitudes and Energetic Precipitating Electrons

Space Weather, Volume 23, Issue 10, October 2025.
Abstract The campaign of Automated Radiation Measurements for Aerospace Safety (ARMAS) has revealed that relativistic electron precipitation (REP) from the radiation belts can significantly enhance the radiation environment at aviation altitudes, in addition to the well‐known sources of galactic cosmic rays and solar energetic particles. Recent studies
Wei Xu, Haotian Xu, Xudong Gu, Binbin Ni, Jingyuan Feng, Joshua Pettit, Hilde Nesse, W. Kent Tobiska, Wen Cheng, Wenchen Ma, Yudi Pan, Jacob Bortnik   +11 more
wiley   +1 more source

A case study of electron precipitation fluxes due to plasmaspheric hiss [PDF]

, 2015
We find that during a large geomagnetic storm in October 2011 the trapped fluxes of >30, >100, and >300 keV outer radiation belt electrons were enhanced at L=3-4 during the storm main phase.
Brundell, James B., Clilverd, Mark A., Duthie, Roger, Hardman, Rachael, Holzworth, Robert H., Macusova, Eva, Mann, Ian R., Milling, David K., Rodger, Craig J.   +8 more
core   +1 more source

The parameterization of wave-particle interactions in the Outer Radiation Belt [PDF]

, 2017
We explore the use of mean-value empirical wave models in diffusion models of the Outer Radiation Belt. We show that magnetospheric wave power is not normally-distributed in time and that geomagnetic activity does not provide a deterministic proxy for ...
Agapitov, Albert, Berner, Cornilleau-Wehrlin, Davis, Denton, Denton, Drummond, Fu, Glauert, Glauert, Horne, Horne, Hudson, Kennel, Laakso, Li, Li, Li, Lyons, Lyons, Mann, Mayaud, Meredith, Murphy, Orlova, Ratcliffe, Santolík, Schulz, Shprits, Spasojevic, Su, Subbotin, Tsurutani, Walt, Wing   +35 more
core   +1 more source

Analysis of plasmaspheric hiss wave amplitudes inferred from low‐altitude POES electron data: Validation with conjunctive Van Allen Probes observations [PDF]

Journal of Geophysical Research: Space Physics, 2015
AbstractPlasmaspheric hiss plays an important role in controlling the overall structure and dynamics of the Earth's radiation belts. The interaction of plasmaspheric hiss with radiation belt electrons is commonly evaluated using diffusion codes, which rely on statistical models of wave observations that may not accurately reproduce the instantaneous ...
Soria‐Santacruz, M, Li, W, Thorne, RM, Ma, Q, Bortnik, J, Ni, B, Kletzing, CA, Kurth, WS, Hospodarsky, GB   +8 more
openaire   +3 more sources

Occurrence Rates and Variability of Whistler‐Mode Waves in the Plasma Trough

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Numerical models of energetic electron behavior in the outer radiation belt require descriptions of the wave‐particle interactions across the inner magnetosphere. Quasilinear diffusion coefficients describe gyro‐resonant wave‐particle interactions over large time‐ and length‐scales but these must be constrained by observations to construct ...
C. E. J. Watt, N. P. Meredith, J. Wong, K. R. Murphy, I. J. Rae, S. Chakraborty, S. N. Bentley, O. Allanson, C. J. Rodger   +8 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