Results 101 to 110 of about 18,045 (247)

Simultaneous Observations of Electron Phase Space Density Variations in the Geostationary Orbit by GK2A, GOES‐16, and GOES‐17

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract This study presents simultaneous measurements of electron phase space density (PSD) gradients in geostationary orbit using data from GK2A, GOES‐16, and GOES‐17. By leveraging a three‐satellite configuration, we provide statistical results of PSD gradient estimation in invariant coordinates.
N.‐Y. Lee   +5 more
wiley   +1 more source

Characterizing Ion‐Scale Fluctuations Around Dipolarization Fronts in Earth's Magnetotail

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract In the Earth's magnetotail bursty bulk flows are often associated with dipolarizing magnetic flux bundles. The leading edges of such earthward‐moving flux bundles are called dipolarization fronts (DF). In the present study we investigate the characteristics of ion‐scale oscillations embedded inside DFs, using observations from NASA's ...
M. Hosner   +3 more
wiley   +1 more source

EMIC wave spatial and coherence scales as determined from multipoint Van Allen Probe measurements

open access: yesGeophysical Research Letters, 2016
Electromagnetic ion cyclotron (EMIC) waves can provide a strong source of energetic electron pitch angle scattering. These waves are often quite localized, thus their spatial extent can have a large effect on their overall scattering efficiency.
L. W. Blum   +4 more
doaj   +1 more source

On the loss mechanisms of radiation belt electron dropouts during the 12 September 2014 geomagnetic storm

open access: yesEarth and Planetary Physics, 2020
Radiation belt electron dropouts indicate electron flux decay to the background level during geomagnetic storms, which is commonly attributed to the effects of wave-induced pitch angle scattering and magnetopause shadowing.
Xin Ma   +10 more
doaj   +1 more source

Van Allen Probes, THEMIS, GOES, and Cluster Observations of EMIC waves, ULF pulsations, and an electron flux dropout [PDF]

open access: yes, 2016
We examined an electron flux dropout during the 12-14 November 2012 geomagnetic storm using observations from seven spacecraft: the two Van Allen Probes, Time History of Events and Macroscale Interactions during Substorms (THEMIS)-A (P5), Cluster 2, and ...
Baker, DN   +11 more
core   +1 more source

Magnetospheric multiscale observations of electromagnetic ion cyclotron waves associated with cold ion heating in the Earth’s magnetosphere

open access: yesAIP Advances
Electromagnetic ion cyclotron (EMIC) waves play a significant role in shaping the dynamics of Earth’s magnetosphere. On September 13, 2015, EMIC wave activity within the proton band was detected in the inner magnetosphere through observations made by the
A. A. Abid   +11 more
doaj   +1 more source

Sporadic Aurora near Geomagnetic Equator: In the Philippines, on 27 October 1856 [PDF]

open access: yes, 2018
While low latitude auroral displays are normally considered to be a manifestation of magnetic storms of considerable size, Silverman (2003, JGR, 108, A4) reported numerous "sporadic auroras" which appear locally at relatively low magnetic latitudes ...
Ebihara, Yusuke   +2 more
core   +3 more sources

Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission [PDF]

open access: yes, 2013
The HOPE mass spectrometer of the Radiation Belt Storm Probes (RBSP) mission (renamed the Van Allen Probes) is designed to measure the in situ plasma ion and electron fluxes over 4π sr at each RBSP spacecraft within the terrestrial radiation belts.
Baldonado, J. R.   +12 more
core   +1 more source

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