Results 71 to 80 of about 829 (188)

VLF waves from ground‐based transmitters observed by the Van Allen Probes: Statistical model and effects on plasmaspheric electrons

Geophysical Research Letters, 2017
Whistler mode very low frequency (VLF) waves from powerful ground‐based transmitters can resonantly scatter energetic plasmaspheric electrons and precipitate them into the atmosphere.
Qianli Ma, Didier Mourenas, Wen Li, Anton Artemyev, Richard M. Thorne   +4 more
doaj   +1 more source

Constructing the frequency and wave normal distribution of whistler-mode wave power [PDF]

, 2013
We introduce a new methodology that allows the construction of wave frequency distributions due to growing incoherent whistler-mode waves in the magnetosphere. The technique combines the equations of geometric optics (i.e.
Bekefi, Beutier, Bortnik, Bortnik, Bortnik, Bortnik, Bortnik, Bortnik, Chen, Chen, Chen, Chum, Chum, Church, Fejer, Glauert, Hikishima, Horne, Huang, Huang, Inan, Katoh, Katoh, Li, Li, Li, Li, Lyons, O'Hagan, Omura, Shprits, Su, Thorne, Watt   +33 more
core   +1 more source

Statistical Survey of Fast Magnetosonic Waves in the L < 2 Region

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Fast magnetosonic waves are electromagnetic waves with frequencies ranging from a few Hertz to several hundred Hertz, observed primarily near the magnetic equator. Recent studies demonstrate that magnetosonic waves can propagate into the L<2 $L< 2$ region, while their distributions and propagation properties there remain unclear.
Zhijie Qin, Hui Zhu, Zhihai Ouyang, Yingying Zhao, Huicong Chen, Zhenghao She   +5 more
wiley   +1 more source

A Generation Mechanism of Banded Plasmaspheric Hiss

Geophysical Research Letters
As a unique structure of plasmaspheric hiss emissions, banded hiss waves generally consist of an upper band above ∼200 Hz, a lower band below ∼100 Hz and a power gap in between. However, the generation mechanism of banded hiss remains unclear.
Junhu Dong, Binbin Ni, Zheng Xiang, Zhiyong Wu   +3 more
doaj   +1 more source

Using the cold plasma dispersion relation and whistler mode waves to quantify the antenna sheath impedance of the Van Allen Probes EFW instrument [PDF]

, 2016
Cold plasma theory and parallel wave propagation are often assumed when approximating the whistler mode magnetic field wave power from electric field observations.
Boehm, Burtis, Chen, Fu, Green, Green, Gurnett, Hartley, Hartley, Hartley, Horne, Horne, Kletzing, Kurth, Lam, Li, Li, Lyons, Lyons, Meredith, Meredith, Meredith, Meredith, Meredith, Morley, Ni, Onsager, Pederson, Reeves, Reeves, Santolik, Santolík, Santolík, Santolík, Santolík, Shprits, Stix, Summers, Summers, Summers, Summers, Summers, Thorne, Thorne, Tsurutani, Tsurutani, Turner, Turner, Watt, Wygant   +49 more
core   +1 more source

Statistical Analysis of Hiss Waves in Plasmaspheric Plumes Using Van Allen Probe Observations

Journal of Geophysical Research: Space Physics, 2019
AbstractPlasmaspheric hiss waves commonly observed in high‐density regions in the Earth's magnetosphere are known to be one of the main contributors to the loss of radiation belt electrons. There has been a lot of effort to investigate the distributions of hiss waves in the plasmasphere, while relatively little attention has been given to those in the ...
Kyung‐Chan Kim, Yuri Shprits
openaire   +4 more sources

Suprathermal Electron Evolution Under the Competition Between Plasmaspheric Plume Hiss Wave Heating and Collisional Cooling

Geophysical Research Letters, 2020
AbstractSuprathermal electrons are a major heat source of ionospheric plasma. How the suprathermal electrons evolve during their bounces inside the plasmasphere is a fundamental question for the magnetosphere‐ionosphere coupling. On the basis of Van Allen Probes observations and quasi‐linear simulations, we present here the first quantitative study on ...
Zhongshan Wang, Zhenpeng Su, Nigang Liu, Guyue Dai, Huinan Zheng, Yuming Wang, Shui Wang   +6 more
openaire   +1 more source

Periodic Response of Plasmasphere to Solar Wind High‐Speed Streams

Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract We report the first observation of the plasmasphere's periodic response to solar wind high‐speed streams (HSS) during the declining phase of Solar Cycle 23, based on plasmapause location data from the IMAGE and THEMIS satellites. In both 2005 and 2008, the daily variability of the plasmapause exhibits a strong anti‐correlation with solar wind ...
Quan‐Han Li, Maosheng He, Yong‐Qiang Hao, Fei He, Xiao‐Xin Zhang   +4 more
wiley   +1 more source

Local Generation of High‐Frequency Plasmaspheric Hiss Observed by Van Allen Probes

Geophysical Research Letters, 2019
The generation of a high‐frequency plasmaspheric hiss (HFPH) wave observed by Van Allen Probes is studied in this letter for the first time. The wave has a moderate power spectral density (∼10−6 nT2/Hz), with a frequency range extended from 2 to 10 kHz ...
Zhaoguo He, Lunjin Chen, Xu Liu, Hui Zhu, Si Liu, Zhonglei Gao, Yong Cao   +6 more
doaj   +1 more source

Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm [PDF]

, 2014
Local acceleration driven by whistler-mode chorus waves is fundamentally important for accelerating seed electron populations to highly relativistic energies in the outer radiation belt.
Baker, D. N., Blake, J. B., Bortnik, J., Claudepierre, S., Fennell, Joseph F., Green, J. C., Hospodarsky, G. B., Kanekal, S. G., Kletzing, C A., Kurth, W. S., Li, W., Ma, Q., Ni, B., Reeves, Geoffrey, Spence, Harlan E., Thorne, R. M.   +15 more
core   +2 more sources