Results 21 to 30 of about 5,834 (247)

Fluctuation of Lower Ionosphere Associated with Energetic Electron Precipitations during a Substorm

Atmosphere, 2021
In this paper, using the combined observations of the NOAA 16, LANL-01A, IMAGE satellites, VLF radio wave, and ground-based riometers, we study the fluctuation of lower ionosphere-associated precipitating energetic electrons during a geomagnetic storm on
Tongxing Fu, Zhixu Wu, Peng Hu, Xin Zhang   +3 more
doaj   +1 more source

D-region impact area of energetic electron precipitation during pulsating aurora [PDF]

Annales Geophysicae, 2021
A total of 10 radars from the Super Dual Auroral Radar Network (SuperDARN) in Antarctica were used to estimate the spatial area over which energetic electron precipitation (EEP) impacts the D-region ionosphere during pulsating aurora (PsA) events. We use
E. Bland, F. Tesema, F. Tesema, N. Partamies, N. Partamies   +4 more
doaj   +1 more source

Superfast precipitation of energetic electrons in the radiation belts of the Earth

Nature Communications, 2022
AbstractEnergetic electron precipitation from Earth’s outer radiation belt heats the upper atmosphere and alters its chemical properties. The precipitating flux intensity, typically modelled using inputs from high-altitude, equatorial spacecraft, dictates the radiation belt’s energy contribution to the atmosphere and the strength of space-atmosphere ...
Xiao-Jia Zhang, Anton Artemyev, Vassilis Angelopoulos, Ethan Tsai, Colin Wilkins, Satoshi Kasahara, Didier Mourenas, Shoichiro Yokota, Kunihiro Keika, Tomoaki Hori, Yoshizumi Miyoshi, Iku Shinohara, Ayako Matsuoka   +12 more
openaire   +5 more sources

Strong localized variations of the low-altitude energetic electron fluxes in the evening sector near the plasmapause [PDF]

Annales Geophysicae, 1998
Specific type of energetic electron precipitation accompanied by a sharp increase in trapped energetic electron flux are found in the data obtained from low-altitude NOAA satellites.
E. E. Titova, T. A. Yahnina, A. G. Yahnin, B. B. Gvozdevsky, A. A. Lyubchich, V. Y. Trakhtengets, A. G. Demekhov, J. L. Horwitz, F. Lefeuvre, D. Lagoutte, J. Manninen, T. Turunen   +11 more
doaj   +1 more source

Spectral characteristics of waves and particles in the model of cyclotron wave-particle interactions near plasmapause [PDF]

Annales Geophysicae, 1999
Further analysis of energetic electron precipitation at the evening sector of magnetosphere is performed. In the framework of the quantitative model of cyclotron wave-particle interactions developed in the previous Pasmanik et al.
D. l. Pasmanik, D. l. Pasmanik, D. l. Pasmanik, V. Y. Trakhtengerts   +3 more
doaj   +1 more source

Modulation of Energetic Electron Precipitation Driven by Three Types of Whistler Mode Waves

Geophysical Research Letters, 2023
Precipitation into the Earth's atmosphere due to pitch angle scattering by plasma waves has been recognized as one of the major loss mechanisms for energetic electrons.
Xiao‐Chen Shen, Wen Li, Luisa Capannolo, Qianli Ma, Murong Qin, Anton V. Artemyev, Vassilis Angelopoulos, Xiao‐Jia Zhang, Sheng Huang   +8 more
doaj   +1 more source

Conjugate high-intensity energetic electron precipitation at high latitude [PDF]

Annales Geophysicae, 2003
On 6 August 1998 an intense precipitation event occurring at high latitude in the evening sector was observed by X-ray and far-ultraviolet imagers on board the Polar satellite and by several ground-based instruments.
T. Christensen, T. Christensen, N. Østgaard, T. J. Rosenberg, D. L. Detrick, G. A. Germany, P. Stauning   +6 more
doaj   +1 more source

Substorm-induced energetic electron precipitation: Morphology and prediction [PDF]

Journal of Geophysical Research: Space Physics, 2015
The injection, and subsequent precipitation, of 20 to 300 keV electrons during substorms is modeled using parameters of a typical substorm found in the literature. When combined with onset timing from, for example, the SuperMAG substorm database, or the Minimal Substorm Model, it may be used to calculate substorm contributions to energetic electron ...
Beharrell, M. J., Honary, F., Rodger, C. J., Clilverd, M. A.   +3 more
openaire   +4 more sources

Secondary electron emission from meteoric smoke particles inside the polar ionosphere [PDF]

Annales Geophysicae, 2016
The charging by secondary electron emission (SEE) from particles is known as a significant charging process in astrophysical plasmas. This work aims at evaluating the significance of SEE for charging of meteoric smoke particles (MSPs) in the Earth's ...
C. Baumann, M. Rapp, M. Rapp, A. Kero
doaj   +1 more source

A quantitative model for cyclotron wave-particle interactions at the plasmapause [PDF]

Annales Geophysicae, 1998
The formation of a zone of energetic electron precipitation by the plasmapause, a region of enhanced plasma density, following energetic particle injection during a magnetic storm, is analyzed.
D. L. Pasmanik, V. Y. Trakhtengerts, A. G. Demekhov, A. A. Lyubchich, E. E. Titova, T. Yahnina, M. J. Rycroft, J. Manninen, T. Turunen   +8 more
doaj   +1 more source