Results 21 to 30 of about 40,348 (289)

Origin of energetic electron precipitation >30 keV into the atmosphere [PDF]

Journal of Geophysical Research: Space Physics, 2010
Energetic electrons are deposited into the atmosphere from Earth's inner magnetosphere, resulting in the production of odd nitrogen (NOx). During polar night, NOx can be transported to low altitudes, where it can destroy ozone, affecting the atmospheric radiation balance.
Lam, Mai Mai, Horne, Richard B., Meredith, Nigel P., Glauert, Sarah A., Moffat-Griffin, Tracy, Green, Janet C.   +5 more
openaire   +4 more sources

Driver of Energetic Electron Precipitation in the Vicinity of Ganymede

Geophysical Research Letters, 2023
The driver of energetic electron precipitation into Ganymede's atmosphere has been an outstanding open problem. During the Juno flyby of Ganymede on 7 June 2021, Juno observed significant downward‐going electron fluxes inside the bounce loss cone of ...
W. Li, Q. Ma, X.‐C. Shen, X.‐J. Zhang, B. H. Mauk, G. Clark, F. Allegrini, W. S. Kurth, G. B. Hospodarsky, A. Sulaiman, T. A. Nordheim, S. J. Bolton   +11 more
doaj   +2 more sources

Modelling the impact of energetic electrons on electron-acoustic instabilities and HF/UHF wave propagation in the ionospheric-like plasmas [PDF]

Scientific Reports
Recent studies reveal that ionospheric irregularities remain poorly understood due to the lack of models and observations capable of explaining the characteristics of the observed wave structures.
Dorsa Ebadi, Sahar Barzegar
doaj   +2 more sources

The high-energy tail of energetic electron precipitation: case studies

Frontiers in Astronomy and Space Sciences
Precipitating plasma sheet, ring current, and radiation belt electrons will affect the ionization level and composition of the neutral atmosphere. Knowledge gaps remain regarding the frequency, intensity, and energy spectrum of the Medium Energy Electron
Hilde Nesse, Josephine Salice
doaj   +3 more sources

Comparison between POES energetic electron precipitation observations and riometer absorptions: Implications for determining true precipitation fluxes [PDF]

Journal of Geophysical Research: Space Physics, 2013
AbstractEnergetic electron precipitation (EEP) impacts the chemistry of the middle atmosphere with growing evidence of coupling to surface temperatures at high latitudes. To better understand this link, it is essential to have realistic observations to properly characterize precipitation and which can be incorporated into chemistry‐climate models.
Rodger, Craig J., Kavanagh, Andrew J., Clilverd, Mark A., Marple, Steve R.   +3 more
openaire   +5 more sources

Observations of coincident EMIC wave activity and dusk-side energetic electron precipitation on 18-19 January 2013 [PDF]

Geophysical Research Letters, 2015
Electromagnetic ion cyclotron (EMIC) waves have been suggested to be a cause of radiation belt electron loss to the atmosphere. Here simultaneous, magnetically conjugate measurements are presented of EMIC wave activity, measured at geosynchronous orbit ...
A. Halford, Anderson, Anderson, Blum, Blum, Bortnik, Carson, Chen, Clilverd, Comess, Cornwall, Cornwall, Denton, Engebretson, Erlandson, Foat, G. Reeves, Gendrin, Goldstein, Goldstein, H. Singer, Halford, Halford, Imhof, J. Goldstein, J. W. Bonnell, Jordanova, Jordanova, Keika, L. W. Blum, Li, Li, Lorentzen, Lyons, M. Clilverd, M. Engebretson, M. Ohnsted, M. Usanova, Mann, McCollough, McCollough, Meredith, Millan, Millan, Millan, Min, Miyoshi, Nakamura, Olson, R. Millan, Sandanger, Soria-Santacruz, Summers, Thorne, Tsyganenko, Ukhorskiy, Usanova, Vampola, Wang, Woodger, X. Li   +60 more
core   +3 more sources

Exceptional middle latitude electron precipitation detected by balloon observations: implications for atmospheric composition [PDF]

Atmospheric Chemistry and Physics, 2022
Energetic particle precipitation leads to ionization in the Earth's atmosphere, initiating the formation of active chemical species which destroy ozone and have the potential to impact atmospheric composition and dynamics down to the troposphere.
I. Mironova, M. Sinnhuber, G. Bazilevskaya, M. Clilverd, B. Funke, V. Makhmutov, V. Makhmutov, E. Rozanov, E. Rozanov, M. L. Santee, T. Sukhodolov, T. Sukhodolov, T. Ulich   +12 more
doaj   +1 more source

The Key Role of Magnetic Curvature Scattering in Energetic Electron Precipitation During Substorms

Geophysical Research Letters
Energetic electron precipitation (EEP) during substorms significantly affects ionospheric chemistry and lower‐ionosphere (
Ying Zou, Xiao‐Jia Zhang, Anton V. Artemyev, Yangyang Shen, Vassilis Angelopoulos   +4 more
doaj   +2 more sources

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

Energetic Electron Precipitation during Slot Region Filling Events

Journal of Geophysical Research: Space Physics, 2023
The region separating the inner and outer radiation belt, typically devoid of energetic electrons, is termed the slot region. The outer edge of the slot region marks the equatorward edge of the energetic electron precipitation (EEP) originating from the outer radiation belt.
H. Nesse, E. M. Babu, J. A. Salice, B. Funke   +3 more
openaire   +3 more sources