Results 41 to 50 of about 1,155 (215)

An auroral westward flow channel (AWFC) and its relationship to field-aligned current, ring current, and plasmapause location determined using multiple spacecraft observations [PDF]

open access: yesAnnales Geophysicae, 2007
An auroral westward flow channel (AWFC) is a latitudinally narrow channel of unstable F-region plasma with intense westward drift in the dusk-to-midnight sector ionosphere. AWFCs tend to overlap the equatorward edge of the auroral oval, and their life
M. L. Parkinson   +5 more
doaj   +1 more source

Magnetospheric processes in the plasmapause

open access: yesEos, Transactions American Geophysical Union, 1984
The current experimental and theoretical status on the existence and importance of the plasmapause as a magnetospheric boundary was the subject of a conference on Fundamental Magnetospheric Processes in the Plasmapause Region, held at Huntsville, Ala., October 25–27, 1983, under the joint sponsorship of the Marshall Space Flight Center and the ...
James L. Green, James L. Horwitz
openaire   +1 more source

Modulation of NTC frequencies by Pc5 ULF pulsations : experimental test of the generation mechanism and magnetoseismology of the emitting surface [PDF]

open access: yes, 2009
Nonthermal continuum (NTC) radiation is believed to be emitted by the conversion of an electrostatic wave into an electromagnetic one, which takes place at the Earth's magnetic equator.
Le Rouzic, G.   +8 more
core   +1 more source

A machine-learning-based electron density (MLED) model in the inner magnetosphere

open access: yesEarth and Planetary Physics, 2022
Plasma density is an important factor in determining wave-particle interactions in the magnetosphere. We develop a machine-learning-based electron density (MLED) model in the inner magnetosphere using electron density data from Van Allen Probes between ...
QingHua Zhou   +7 more
doaj   +1 more source

A Comparison of the Location of the Mid‐Latitude Trough and Plasmapause Boundary

open access: yes, 2021
: We have compared the location of the mid‐latitude trough observed in two dimensional vertical total electron content (vTEC) maps with four plasmapause boundary models, Radiation Belt Storm Probes (RBSP) observations, and IMAGE extreme ultraviolet (EUV)
Zhelavskaya, I.   +4 more
core   +2 more sources

Narrow-band emission with 0.5 to 3.5 Hz varying frequency in the background of the main phase of the 17 March 2013 magnetic storm

open access: yesSolar-Terrestrial Physics, 2016
We present results of the analysis of an unusually long narrow-band emission in the Pc1 range with increasing carrier frequency. The event was observed against the background of the main phase of a strong magnetic storm caused by arrival of a high-speed ...
Potapov A.S.   +4 more
doaj   +1 more source

Polar observations of electron density distribution in the Earth’s magnetosphere. 2. Density profiles [PDF]

open access: yesAnnales Geophysicae, 2002
Using spacecraft potential measurements of the Polar electric field experiment, we investigate electron density variations of key plasma regions within the magnetosphere, including the polar cap, cusp, trough, plasmapause, and auroral zone.
H. Laakso   +3 more
doaj   +1 more source

In Situ Observations of Lower Hybrid Drift Waves at the Inner Edge of the Ring Current by the Van Allen Probe‐A

open access: yesGeophysical Research Letters, 2022
In the magnetosphere of the Earth, lower hybrid drift (LHD) waves effectively cause plasma diffusion and couple well to both electrons and ions. LHD waves have the characteristics of linear polarization and highly oblique propagation with frequencies ...
Zhihai Ouyang   +5 more
doaj   +1 more source

The Evolution of Whistler Hiss‐Like Waves Across Plasmapause: Hiss to Exohiss

open access: yesGeophysical Research Letters, 2023
The exohiss waves are hiss‐like whistler mode waves that occur outside plasmapause. Although these waves can cause the loss of radiation belt electrons ∼
Bopu Feng   +7 more
doaj   +1 more source

Ionospheric Pc1 waves during a storm recovery phase observed by the China Seismo-Electromagnetic Satellite [PDF]

open access: yesAnnales Geophysicae, 2020
During the storm recovery phase on 27 August 2018, the China Seismo-Electromagnetic Satellite (CSES) detected Pc1 wave activities in both the Northern Hemisphere and Southern Hemisphere in the high-latitude, post-midnight ionosphere with a central ...
X. Gou   +15 more
doaj   +1 more source

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