Ionized plasma and neutral gas coupling in the Sun's chromosphere and Earth's ionosphere/thermosphere

JE Leake, CR DeVore, JP Thayer, AG Burns… - Space Science …, 2014 - Springer
We review physical processes of ionized plasma and neutral gas coupling in the weakly
ionized, stratified, electromagnetically-permeated regions of the Sun's chromosphere and …

Multiscale dynamics in the high‐latitude ionosphere

Y Nishimura, Y Deng, LR Lyons… - Ionosphere …, 2021 - Wiley Online Library
This chapter reviews recent findings of multi‐scale structures and dynamics in the high‐
latitude ionosphere, particularly on meso‐scale (10s‐100s km) processes, as well as their …

Effects of electrojet turbulence on a magnetosphere‐ionosphere simulation of a geomagnetic storm

M Wiltberger, V Merkin, B Zhang… - Journal of …, 2017 - Wiley Online Library
Ionospheric conductance plays an important role in regulating the response of the
magnetosphere‐ionosphere system to solar wind driving. Typically, models of …

The mysterious green streaks below STEVE

J Semeter, M Hunnekuhl, E MacDonald… - AGU …, 2020 - Wiley Online Library
Strong thermal emission velocity enhancement (STEVE) is an optical phenomenon of the
subauroral ionosphere arising from extreme ion drift speeds. STEVE consists of two distinct …

Point-cloud clustering and tracking algorithm for radar interferometry

MF Ivarsen, JP St-Maurice, GC Hussey… - Physical Review E, 2024 - APS
In data mining, density-based clustering, which entails classifying datapoints according to
their distributions in some space, is an essential method to extract information from large …

Deriving the ionospheric electric field from the bulk motion of radar aurora in the E‐region

MF Ivarsen, JP St‐Maurice… - Journal of …, 2024 - Wiley Online Library
In the auroral E‐region strong electric fields can create an environment characterized by fast
plasma drifts. These fields lead to strong Hall currents which trigger small‐scale plasma …

Narrow width Farley‐Buneman spectra above 100 km altitude

JP St‐Maurice, D Huyghebaert… - Journal of …, 2023 - Wiley Online Library
For spectra associated with full turbulence the observed mean phase velocity of unstable
Farley‐Buneman waves has been found not to exceed the ion‐acoustic speed, cs. This has …

Photoelectron‐induced waves: A likely source of 150 km radar echoes and enhanced electron modes

MM Oppenheim, YS Dimant - Geophysical Research Letters, 2016 - Wiley Online Library
VHF radars near the geomagnetic equator receive coherent reflections from plasma density
irregularities between 130 and 160 km in altitude during the daytime. Though researchers …

First 3‐D simulations of meteor plasma dynamics and turbulence

MM Oppenheim, YS Dimant - Geophysical Research Letters, 2015 - Wiley Online Library
Millions of small but detectable meteors hit the Earth's atmosphere every second, creating
trails of hot plasma that turbulently diffuse into the background atmosphere. For over 60 …

A theoretical framework for the changing spectral properties of meter‐scale Farley‐Buneman waves between 90 and 125 km altitudes

JP St.‐Maurice, JL Chau - Journal of Geophysical Research …, 2016 - Wiley Online Library
Stimulated by recent observations described in a companion paper, we have revisited
existing theories of the Farley‐Buneman instability throughout the altitude range 90 to 125 …