Results 41 to 50 of about 173 (148)

Ensemble Modeling of Radiation Belt Electron Flux Decay Following a Geomagnetic Storm: Dependence on Key Input Parameters

Space Weather, 2022
We perform an ensemble of quasi‐linear diffusion simulations of the radiation belt electron flux decay for ∼6 days at L = 3.5 during the recovery phase of the storm on 7 November 2015, where plasmaspheric hiss dominantly drives the electron flux decay ...
Man Hua, Jacob Bortnik, Adam C. Kellerman, Enrico Camporeale, Qianli Ma   +4 more
doaj   +1 more source

Reconciling conflicting accounts of plasmaspheric hiss [PDF]

Eos, Transactions American Geophysical Union, 2012
Arcing from pole to pole, the Van Allen radiation belts are formed from a large number of protons or electrons trapped high above the Earth, the high‐energy particles locked in paths dictated by the terrestrial magnetic field. Separating the outer electron Van Allen belt from the inner belt is the so‐called slot region, a safe zone with reduced ...
openaire   +1 more source

Simulation study on parametric dependence of whistler-mode hiss generation in the plasmasphere

Earth, Planets and Space, 2021
We conduct electromagnetic particle simulations to examine the applicability of nonlinear wave growth theory to the generation process of plasmaspheric hiss. We firstly vary the gradient of the background magnetic field from a realistic model to a rather
Yin Liu, Yoshiharu Omura, Mitsuru Hikishima   +2 more
doaj   +1 more source

Temporal variability of quasi-linear pitch-angle diffusion

Frontiers in Astronomy and Space Sciences, 2022
Kinetic wave-particle interactions in Earth’s outer radiation belt energize and scatter high-energy electrons, playing an important role in the dynamic variation of the extent and intensity of the outer belt.
Clare E. J. Watt, Hayley J. Allison, Sarah N. Bentley, Rhys L. Thompson, I. Jonathan Rae, Oliver Allanson, Nigel P. Meredith, Johnathan P. J. Ross, Sarah A. Glauert, Richard B. Horne, Shuai Zhang, Kyle R. Murphy, Kyle R. Murphy, Dovilė Rasinskaitė, Shannon Killey   +14 more
doaj   +1 more source

Amplification of whistler‐mode hiss inside the plasmasphere [PDF]

Geophysical Research Letters, 2012
Chorus generated outside the plasmasphere has been suggested to be the source of plasmaspheric hiss. A detailed evaluation of the propagation and Landau damping of chorus waves can account for most of the properties of dayside hiss, but the intensity is underestimated by 10–20 dB compared to the observed hiss intensity.
Lunjin Chen, Wen Li, Jacob Bortnik, Richard M. Thorne   +3 more
openaire   +1 more source

Quasi‐Trapped Zebra Stripes: Radial Transport Driven by Dual‐Pulse Electric Fields

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Energetic electron spectra in Earth's inner radiation belt often exhibit regular stripe‐like features, known as “zebra stripes,” which are typically attributed to the drift motion of stably‐trapped electrons disturbed by electric field perturbations.
Ziyang Wang, Ying Liu, Qiugang Zong, Yixin Sun, Hong Zou, Yuguang Ye   +5 more
wiley   +1 more source

Hiss Wave Evolution During Substorms Based on Van Allen Probes Observations

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Hiss waves frequently occur in the plasmasphere or plumes, playing a key role in energetic electron loss in the Earth's inner magnetosphere. While previous studies have linked hiss wave enhancements in the outer plasmasphere (just inside the plasmapause) to electron injections during substorms, their evolution across various substorm phases ...
Xiao‐Chen Shen, Wen Li, Qianli Ma, Nigel P. Meredith, Xiangning Chu, Murong Qin, Luisa Capannolo, Sheng Huang   +7 more
wiley   +1 more source

The distribution of plasmaspheric hiss wave power with respect to plasmapause location

Geophysical Research Letters, 2016
In this work, Van Allen Probes data are used to derive terrestrial plasmaspheric hiss wave power distributions organized by (1) distance away from the plasmapause and (2) plasmapause distance from Earth.
David M. Malaspina, Allison N. Jaynes, Cory Boulé, Jacob Bortnik, Scott A. Thaller, Robert E. Ergun, Craig A. Kletzing, John R. Wygant   +7 more
doaj   +1 more source

The interactions between ULF waves and cold charged particles in the Earth's magnetosphere

地球与行星物理论评, 2022
In the solar wind-magnetosphere coupling processes, many kinds of plasma waves can be excited in the Earth's magnetosphere including ULF waves, hiss waves, chorus waves, etc. Among these waves, ULF waves are featured by the lowest wave frequency (1 mHz～1
Jie Ren, Qiugang Zong
doaj   +1 more source

Particle Simulation of the Generation of Plasmaspheric Hiss

Journal of Geophysical Research: Space Physics, 2020
AbstractWe have conducted a one‐dimensional electromagnetic particle simulation with a parabolic magnetic field to reproduce whistler‐mode hiss emissions in the plasmasphere. We assume a bi‐Maxwellian distribution with temperature anisotropy for energetic electrons injected into the plasmasphere and find that hiss emissions are generated with spectrum ...
Mitsuru Hikishima, Yoshiharu Omura, Danny Summers   +2 more
openaire   +1 more source