Results 31 to 40 of about 5,834 (247)

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

open access: yesJournal 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   +5 more
openaire   +2 more sources

Bursty Energetic Electron Precipitation by High‐Order Resonance With Very‐Oblique Whistler‐Mode Waves

open access: yesGeophysical Research Letters, 2023
Resonant interactions with whistler‐mode waves are one of the most important drivers for rapid energetic electron precipitation. In this letter, we study a conjunction event, where bursts of energetic electron precipitation (50–800 keV) with timescales ...
Longzhi Gan   +8 more
doaj   +1 more source

Atmospheric Response to EEP during Geomagnetic Disturbances

open access: yesAtmosphere, 2023
Energetic electron precipitation (EEP) is associated with solar activity and space weather and plays an important role in the Earth’s polar atmosphere.
Dmitry Grankin   +4 more
doaj   +1 more source

Spatial extent of the energetic electron precipitation region during substorms

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The spatial coverage of the energetic electron precipitation (EEP) region during three substorms has been determined using a combination of ground-based instruments in North America.
Emma Bland   +4 more
doaj   +1 more source

Electron Microbursts Induced by Nonducted Chorus Waves

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Microbursts, short-lived but intense electron precipitation observed by low-Earth-orbiting satellites, may contribute significantly to the losses of energetic electrons in the outer radiation belt. Their origin is likely due to whistler mode chorus waves,
Lunjin Chen   +7 more
doaj   +1 more source

A reexamination of latitudinal limits of substorm‐produced energetic electron precipitation [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
AbstractThe primary sources of energetic electron precipitation (EEP) which affect altitudes <100 km (>30 keV) are expected to be from the radiation belts and during substorms. EEP from the radiation belts should be restricted to locations between L = 1.5 and 8, while substorm‐produced EEP is expected to range from L = 4 to 9.5 during quiet ...
Cresswell-Moorcock, Kathy   +6 more
openaire   +2 more sources

pyGPI5: A python D- and E-region chemistry and ionization model

open access: yesFrontiers in Astronomy and Space Sciences, 2022
We present a Python implementation of a D- and E-region chemistry and ionization code called pyGPI5. Particle precipitation that penetrates into the E- and D-region of the ionosphere-thermosphere causes significant enhancements of the electron density ...
Stephen R. Kaeppler   +5 more
doaj   +1 more source

Dipolarization-induced energetic electron precipitation during continuously active periods and isolated substorms

open access: yesFrontiers in Physics, 2022
Recently we proposed a spatio-temporal model of auroral absorption for isolated substorms based on linear prediction filter technique, which describes the precipitation effects as a sum of properly weighted and time-delayed contributions of short ...
M. A. Shukhtina   +2 more
doaj   +1 more source

Modeling of nonstationary electron precipitation by the whistler cyclotron instability [PDF]

open access: yesAnnales Geophysicae, 1998
We study a simple self-consistent model of a whistler cyclotron maser derived from the full set of quasi-linear equations. We employ numerical calculations to demonstrate dependencies of pulsation regimes of whistler-mode wave interactions with ...
A. G. Demekhov   +5 more
doaj   +1 more source

Energetic Electrons Near Europa From Juno JEDI Data

open access: yesGeophysical Research Letters, 2023
Optical remote sensing observations have suggested that the top layer of Europa's icy surface is heavily affected by external weathering agents. To model and understand these effects, it is necessary to characterize the environment as fully as possible ...
C. Paranicas   +10 more
doaj   +1 more source

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