Results 31 to 40 of about 174 (149)

Plasmaspheric hiss amplification mechanisms identified [PDF]

Eos, Transactions American Geophysical Union, 2012
Over the past 3 decades the hypothesis that chorus waves—a form of highintensity plasma wave often found in the outer magnetosphere—evolve into plasmaspheric hiss in the plasmasphere has grown in prominence. Plasmaspheric hiss is a form of low‐frequency radio wave that is often observed in the regions within the plasmasphere that have high plasma ...
openaire   +1 more source

Survey of ELF-VLF plasma waves in outer radiation belt observed by Cluster STAFF-SA experiment [PDF]

Annales Geophysicae, 2008
Various types of plasma waves have profound effects on acceleration and scattering of radiation belt particles. For the purposes of radiation belt modeling it is necessary to know statistical distributions of plasma wave parameters.
D. Pokhotelov, F. Lefeuvre, R. B. Horne, N. Cornilleau-Wehrlin, N. Cornilleau-Wehrlin   +4 more
doaj   +1 more source

Determining the Temporal and Spatial Coherence of Plasmaspheric Hiss Waves in the Magnetosphere [PDF]

Journal of Geophysical Research: Space Physics, 2021
AbstractPlasmaspheric hiss is one of the most important plasma waves in the Earth's magnetosphere to contribute to radiation belt dynamics by pitch‐angle scattering energetic electrons via wave‐particle interactions. There is growing evidence that the temporal and spatial variability of wave‐particle interactions are important factors in the ...
Shuai Zhang, I. Jonathan Rae, Clare E. J. Watt, Alexander W. Degeling, Anmin Tian, Quanqi Shi, Xiao‐Chen Shen, Andy W. Smith, Mengmeng Wang   +8 more
openaire   +3 more sources

Effect of plasma density on diffusion rates due to wave particle interactions with chorus and plasmaspheric hiss: extreme event analysis [PDF]

Annales Geophysicae, 2014
Wave particle interactions play an important role in controlling the dynamics of the radiation belts. The purpose of this study is to estimate how variations in the plasma density can affect diffusion rates resulting from interactions between chorus ...
A. Sicard-Piet, D. Boscher, R. B. Horne, N. P. Meredith, V. Maget   +4 more
doaj   +1 more source

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

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

Plasmaspheric hiss properties: Observations from Polar [PDF]

Journal of Geophysical Research: Space Physics, 2015
AbstractIn the region between L = 2 to 7 at all Magnetic Local Time (MLTs) plasmaspheric hiss was detected 32% of the time. In the limited region of L = 3 to 6 and 15 to 21 MLT (dusk sector), the wave percentage detection was the highest (51%). The latter plasmaspheric hiss is most likely due to energetic ~10–100 keV electrons drifting into the dusk ...
Bruce T. Tsurutani, Barbara J. Falkowski, Jolene S. Pickett, Ondrej Santolik, Gurbax S. Lakhina   +4 more
openaire   +1 more source

Assessment of Spacecraft Internal Charging in the Earth's Outer Radiation Belt

Space Weather, Volume 24, Issue 8, August 2026.
Abstract The internal charging effects triggered by energetic (>100 keV) electrons in the Earth's radiation belts can cause anomalies and failures of electronic components aboard spacecraft. Given the critical importance of safeguarding space assets, it is essential to estimate internal charging risks, which depend highly on the distribution of ...
Yuan Lei, Xing Cao, Binbin Ni, Xueshang Feng, Xiaoyu Wang   +4 more
wiley   +1 more source

Sensitivity of Bounce‐Averaged Diffusion Coefficients to the Latitudinal Variability of Lightning Generated Whistlers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The development of statistical wave models that include the underlying variability of the wave distributions is an important next step toward more accurate radiation belt models. Lightning‐generated whistlers (LGW) are an important wave mode in the plasmasphere; previous time‐averaged diffusion coefficients have used assumptions about the wave
Alexander D. Shane, Robert A. Marshall, Qianli Ma   +2 more
wiley   +1 more source