Results 31 to 40 of about 412 (169)

Deep learning model of hiss waves in the plasmasphere and plumes and their effects on radiation belt electrons

Frontiers in Astronomy and Space Sciences, 2023
Hiss waves play an important role in removing energetic electrons from Earth’s radiation belts by precipitating them into the upper atmosphere. Compared to plasmaspheric hiss that has been studied extensively, the evolution and effects of plume hiss are ...
Sheng Huang, Wen Li, Qianli Ma, Qianli Ma, Xiao-Chen Shen, Luisa Capannolo, Miroslav Hanzelka, Miroslav Hanzelka, Xiangning Chu, Donglai Ma, Jacob Bortnik, Simon Wing   +11 more
doaj   +1 more source

Hot plasma effects on the dispersion properties of plasmaspheric hiss and its electron diffusion

地球与行星物理论评, 2023
Electron diffusion caused by plasmaspheric hiss is an important mechanism for the loss of electrons in Earth's inner magnetosphere; it has also been considered responsible for the formation of the slot region between inner and outer radiation belts.
Xin Ma, Xudong Gu, Qi Zhu, Luhuai Jiao, Jingzhi Wang, Binbin Ni   +5 more
doaj   +1 more source

A first approach to model the low-frequency wave activity in the plasmasphere [PDF]

Annales Geophysicae, 2002
A comprehensive empirical model of waves is developed in the objective to simulate wave-particle interactions involved in the loss and acceleration of radiation belt electrons.
R. André, R. André, R. André, F. Lefeuvre, F. Simonet, U. S. Inan   +5 more
doaj   +1 more source

Early-Time Non-Equilibrium Pitch Angle Diffusion of Electrons by Whistler-Mode Hiss in a Plasmaspheric Plume Associated with BARREL Precipitation

Frontiers in Astronomy and Space Sciences, 2021
In August 2015, the Balloon Array for Radiation belt Relativistic Electron Losses (BARREL) observed precipitation of energetic (<200 keV) electrons magnetically conjugate to a region of dense cold plasma as measured by the twin Van Allen Probes ...
R. M. Millan, J.-F. Ripoll, J.-F. Ripoll, O. Santolík, O. Santolík, W. S. Kurth   +5 more
doaj   +1 more source

An empirical model of the global distribution of plasmaspheric hiss based on Van Allen Probes EMFISIS measurements

Earth and Planetary Physics, 2020
Using wave measurements from the EMFISIS instrument onboard Van Allen Probes, we investigate statistically the spatial distributions of the intensity of plasmaspheric hiss waves.
JingZhi Wang, Qi Zhu, XuDong Gu, Song Fu, JianGuang Guo, XiaoXin Zhang, Juan Yi, YingJie Guo, BinBin Ni, Zheng Xiang   +9 more
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

A theoretical verification of intensity of plasmaspheric ELF hiss emissions: theory versus GEOS-1 observations [PDF]

Annales Geophysicae, 1997
An attempt is made to confirm the generation mechanism of plasmaspheric ELF hiss emissions observed aboard GEOS-1 satellite in the equatorial region both at small and large wave normal angles by calculating their magnetic field intensities in terms of
R. Prakash, R. P. Singh, R. C. Awasthi, D. P. Singh   +3 more
doaj   +1 more source

Prompt responses of magnetospheric whistler-mode waves to solar wind dynamic pressure pulses

Frontiers in Astronomy and Space Sciences, 2023
Whistler-mode waves play a critical role in shaping the Earth’s radiation belts, and their spatiotemporal distribution is vital for forecasting and modeling geospace weather.
Nigang Liu, Nigang Liu, Zhenpeng Su, Zhenpeng Su, Zhenpeng Su   +4 more
doaj   +1 more source

First results of low frequency electromagnetic wave detector of TC-2/Double Star program [PDF]

Annales Geophysicae, 2005
LFEW is a low frequency electromagnetic wave detector mounted on TC-2, which can measure the magnetic fluctuation of low frequency electromagnetic waves. The frequency range is 8 Hz to 10 kHz.
J. B. Cao, Z. X. Liu, J. Y. Yang, J. Y. Yang, C. X. Yian, Z. G. Wang, X. H. Zhang, S. R. Wang, S. W. Chen, W. Bian, W. Dong, Z. G. Zhang, F. L. Hua, L. Zhou, N. Cornilleau-Wehrlin, B. de Laporte, M. Parrot, H. Alleyne, K. Yearby, O. Santolík, O. Santolík, C. Mazelle   +21 more
doaj   +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