Results 1 to 10 of about 5,320 (271)
Prediction of Dynamic Plasmapause Location Using a Neural Network [PDF]
Space Weather, 2021 As a common boundary layer that distinctly separates the regions of high‐density plasmasphere and low‐density plasmatrough, the plasmapause is essential to comprehend the dynamics and variability of the inner magnetosphere.
Deyu Guo +11 more
doaj +3 more sources
Plasmapause surface wave oscillates the magnetosphere and diffuse aurora [PDF]
Nature Communications, 2020 Theoretical studies suggested that plasmapause surface waves related to the sharp inhomogeneity exist and act as a source of geomagnetic pulsations.
Fei He +15 more
doaj +3 more sources
Plasmapause Surface Waves Triggered by Substorms [PDF]
Journal of Geophysical Research: Space Physics, 2022 AbstractIn this study, we present in‐situ measurement on board Van Allen Probes showing that surface wave can cause oscillations of the plasmapause and modulate hiss and electron cyclotron harmonic (ECH) waves. Plasmapause surface wave (PSW) in Ps6 band was observed during an intense substorm on 16 July 2017, accompanied with quasi‐periodic emissions ...
Y. X. Hao +6 more
semanticscholar +4 more sources
Sawtooth and dune auroras simultaneously driven by waves around the plasmapause
Earth and Planetary Physics, 2023 The dune aurora, at a scale of ~30 kilometers, was reported recently using ground camera. The small-scale dune aurora occurs on the duskside and exhibits a monochromatic oscillation in the auroral emission, implying fundamental energy conversions ...
Fei He +12 more
doaj +2 more sources
Frontiers in Astronomy and Space Sciences, 2021 The plasmapause marks the limit of the plasmasphere and is characterized by a sudden change in plasma density. This can influence the other regions of the magnetosphere, including due to different waves circulating inside and outside the plasmasphere. In
V. Pierrard +8 more
doaj +2 more sources
Geophysical Research Letters, 2021 We present observational support for whistler mode waves guidance by the plasmapause gradients based on a case study and statistical analyses. Due to the combined effects of inhomogeneous magnetic fields and plasma densities, whistler mode waves near the
Rui Chen +4 more
doaj +2 more sources
The Evolution of Whistler Hiss‐Like Waves Across Plasmapause: Hiss to Exohiss
Geophysical Research Letters, 2023 The exohiss waves are hiss‐like whistler mode waves that occur outside plasmapause. Although these waves can cause the loss of radiation belt electrons ∼
Bopu Feng +7 more
doaj +2 more sources
On How High-Latitude Chorus Waves Tip the Balance Between Acceleration and Loss of Relativistic Electrons. [PDF]
Geophys Res Lett, 2019 Modeling and observations have shown that energy diffusion by chorus waves is an important source of acceleration of electrons to relativistic energies.
Wang D, Shprits YY.
europepmc +3 more sources
A new model for plasmapause locations derived from IMAGE RPI and Van Allen Probes data
Journal of Space Weather and Space ClimateThe outer boundary of the plasmasphere, the plasmapause, is characterized by a sharp electron density gradient that changes under varying space weather conditions.
Banyś Daniela +6 more
doaj +2 more sources
The electron density at the midpoint of the plasmapause
Frontiers in Astronomy and Space SciencesThe high density plasmasphere in the magnetosphere is often separated from a lower density region outside of the plasmasphere, called the plasmatrough, by a sharp gradient in electron density called the plasmapause.
Richard E. Denton +6 more
doaj +2 more sources