Spacecraft observations support the mechanism for explaining auroral dunes observed from the ground by citizen scientists.
The wave-like features in the pre-midnight ionosphere are not moving, vary strongly from day-to-day, and are often associated with the equatorial plasma bubbles, but their origin is still unknown.
Citizen scientists provided images of sub-auroral STEVE (Strong Thermal Emission Velocity Enhancements) showing fine-scale green features with narrow streaks propagating poleward toward STEVE.
Not to be outdone by the discovery of STEVE sub-auroral emissions last year, citizen scientists across Scandinavia reveal dune-shaped optical features, a new atmospheric phenomenon.
The High Energy Lightning Emission Network project hopes to detect elusive bursts of light and particles called terrestrial gamma ray flashes.
As thunderstorm updrafts strengthen, electrification of clouds can heat the lower ionosphere, explaining prolonged disturbances to radio waves in the rarefied atmospheric layer.
The three-dimensional distribution of electron density in the Earth’s ionosphere could be obtained using the broadband radiation of naturally occurring lightning discharges.
Dense GNSS networks enable scientists to track large-scale waves traveling through the upper atmosphere, away from sources in the auroral zone and the day/night terminator.
A new study of sudden temperature spikes in Earth’s stratosphere could improve space weather forecasting.
Satellite imaging reveals two narrow channels of extreme winds surrounded by gentle opposing flow 140–250 kilometers above sea level.