Results 51 to 60 of about 303 (168)
Geophysical Research Letters, 2020 Using Van Allen Probes pitch angle‐resolved electron flux data, we report intriguing events of electron butterfly pitch angle distributions (PADs) at L > ~5.5 on the nightside with distinct durations, i.e., about 9 hr for the 28–29 April 2013 event and ...
Binbin Ni +6 more
doaj +1 more source
Slot region electron loss timescales due to plasmaspheric hiss and lightning-generated whistlers [PDF]
, 2007 Energetic electrons (E > 100 keV) in the Earth's radiation belts undergo Doppler-shifted cyclotron resonant interactions with a variety of whistler mode waves leading to pitch angle scattering and subsequent loss to the atmosphere.
Anderson, Roger R. +3 more
core +1 more source
A Wave Model and Diffusion Coefficients for Plasmaspheric Hiss Parameterized by Plasmapause Location
Journal of Geophysical Research: Space Physics, 2019 Abstract The scattering of electrons via plasmaspheric hiss whistler‐mode plasma waves has profound consequences for the dynamics of electrons in the inner terrestrial magnetosphere, including the radiation belts. Consequently, simulations of inner magnetospheric electron dynamics incorporate hiss wave models, though these models are ...
David M. Malaspina +2 more
openaire +1 more source
Observing the Earth's Plasmasphere and Ionosphere From the Lunar Surface
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract We present the analysis of the first lunar‐based observational characterization of the Earth's plasmasphere and ionosphere using Global Navigation Satellite Systems signals tracked from the lunar surface by the Lunar GNSS Receiver Experiment (LuGRE). The Earth‐Moon geometry enables limb sounding of the plasmasphere at altitudes exceeding 3,000
C. Cesaroni +8 more
wiley +1 more source
Large‐Amplitude Extremely Low Frequency Hiss Waves in Plasmaspheric Plumes
Geophysical Research Letters, 2018 AbstractWhistler‐mode extremely low frequency hiss emissions commonly exist in the plasmasphere and the plasmaspheric plume and contribute to the precipitation loss of the radiation belt electrons. How these hiss waves are generated remains a critical unanswered question. Here we report the large‐amplitude (up to 1.5 nT) hiss waves in the plasmaspheric
Zhenpeng Su +4 more
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Using Van Allen Probes data (2013–2015), we report that highly oblique chorus waves frequently occur in low‐density regions where fpe/fce≈3 ${f}_{\text{pe}}/{f}_{\text{ce}}\approx 3$. These waves exhibit an electric‐to‐magnetic energy ratio PE/c2PB>0.5 $\sqrt{{P}_{\mathrm{E}}/{c}^{2}{P}_{\mathrm{B}}} > 0.5$, much higher than the typical <0.1 ${
Lixian Yang +10 more
wiley +1 more source
Modeling the Leakage of Hiss Waves From the Plasmasphere
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract Plasmaspheric hiss waves can cross the plasmasphere boundary layer (PBL) and leak into the plasmatrough, serving as the main source of exohiss waves. However, it remains unclear how the PBL and wave characteristics affect the leakage process of hiss waves. In this study, we conducted a detailed parametric ray tracing study to model the leakage
Xiangling Ding +5 more
wiley +1 more source
Analysis of Chorus Wave Power on Burst‐Mode Timescales During the Van Allen Probes Era
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract Interactions between whistler‐mode chorus waves and electrons are a key driver of dynamics in Earth's radiation belts. These global dynamics are often described using Fokker‐Planck diffusion models. Whilst, in many cases, such models effectively describe the large scale changes within the region, they often rely upon spatially and temporally ...
R. Black +4 more
wiley +1 more source
How whistler mode hiss waves and the plasmasphere drive the quiet decay of radiation belts electrons following a geomagnetic storm [PDF]
Journal of Physics: Conference Series, 2020 We show how an extended period of quiet solar wind conditions contributes to a quiet state of the plasmasphere that expands up to L similar to 5.5, which creates the perfect conditions for wave-particle interactions between the radiation belt electrons and whistler-mode hiss waves. The correlation between the hiss waves and the plasma density is direct
Ripoll, J. +20 more
openaire +3 more sources
Validation of VERB‐3D Simulation Results in Response to the COSPAR ISWAT Challenge
Space Weather, Volume 24, Issue 5, May 2026.Abstract In response to the first long‐term simulation challenge issued by the COSPAR International Space Weather Action Team (ISWAT) G3‐04 team (“Internal Charging Effects and the Relevant Space Environment”), we evaluate the performance of the Versatile Electron Radiation Belt‐3D model by simulating the radiation belt electron dynamics for the entire
Xingzhi Lyu +6 more
wiley +1 more source