A Comparison of Auroral Oval Proxies With the Boundaries of the Auroral Electrojets
Space WeatherThe boundaries of the auroral oval and auroral electrojets are an important source of information for understanding the coupling between the solar wind and the near‐earth plasma environment.
Karl M. Laundal +2 more
exaly +6 more sources
Ground-Based GNSS and Satellite Observations of Auroral Ionospheric Irregularities during Geomagnetic Disturbances in August 2018 [PDF]
Sensors, 2021 The 25–26 August 2018 space weather event occurred during the solar minimum period and surprisingly became the third largest geomagnetic storm of the entire 24th solar cycle.
Irina Zakharenkova +2 more
doaj +2 more sources
The origins of patchy aurora at Jupiter [PDF]
Nature CommunicationsAuroral emissions play a critical role in coupling the magnetosphere and atmosphere at magnetized planets. At Jupiter, isolated auroral patches equatorward of the main auroral oval have been associated with magnetospheric injections, yet the key ...
A. Daly +12 more
doaj +2 more sources
Prediction and variation of the auroral oval boundary based on a deep learning model and space physical parameters [PDF]
Nonlinear Processes in Geophysics, 2020 The auroral oval boundary represents an important physical process with implications for the ionosphere and magnetosphere. An automatic auroral oval boundary prediction method based on deep learning in this paper is applied to study the variation of the ...
Y. Han +6 more
doaj +1 more source
The Response of Auroral-Oval Waves to CIR-Driven Recurrent Storms: FY-3E/ACMag Observations
Universe, 2023 Alfven-branch waves provide an efficient means for transporting energy into the auroral oval. Here, we report observations of these waves obtained by the Fengyun-3E (FY-3E)/ACMag instruments, which are designed to detect three-dimensional AC magnetic ...
Zhi-Yang Liu +10 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2021 Flow bursts are a major component of transport within the plasma sheet and auroral oval (where they are referred to as flow channels), and lead to a variety of geomagnetic disturbances as they approach the inner plasma sheet (equatorward portion of the ...
Larry. R. Lyons +5 more
doaj +1 more source
Aurora and open magnetic flux during isolated substorms, sawteeth, and SMC events [PDF]
Annales Geophysicae, 2007 Using Polar UVI LBHl and IMAGE FUV WIC data, we have compared the auroral signatures and polar cap open flux for isolated substorms, sawteeth oscillations, and steady magnetospheric convection (SMC) events.
A. D. DeJong +3 more
doaj +1 more source
Multiple current sheets in a double auroral oval observed from the MAGION-2 and MAGION-3 satellites [PDF]
Annales Geophysicae, 1997 A case is described of multiple current sheets crossed by the MAGION-2 satellite in the near-midnight quieting auroral oval. The data were obtained by the magnetometer experiment onboard.
M. Echim +11 more
doaj +1 more source
On the motion of dayside auroras caused by a solar wind pressure pulse [PDF]
Annales Geophysicae, 2005 Global ultraviolet auroral images from the IMAGE satellite were used to investigate the dynamics of the dayside auroral oval responding to a sudden impulse (SI) in the solar wind pressure.
A. Kozlovsky +7 more
doaj +1 more source
Applied Sciences, 2020 The auroral ovals around the Earth’s magnetic poles are produced by the collisions between energetic particles precipitating from solar wind and atoms or molecules in the upper atmosphere.
Chenjing Tian +4 more
doaj +1 more source