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.
Ionosphere/atmosphere interactions
Posted inEditors' Highlights
Citizen Scientists Observe Mysterious Green Streaks Below STEVE
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.
Posted inNews
Students Launch Balloon-Borne Payloads into Thunderstorms
The High Energy Lightning Emission Network project hopes to detect elusive bursts of light and particles called terrestrial gamma ray flashes.
Posted inResearch Spotlights
Charging Thunderclouds Affect Ionospheric Conductivity
As thunderstorm updrafts strengthen, electrification of clouds can heat the lower ionosphere, explaining prolonged disturbances to radio waves in the rarefied atmospheric layer.
Posted inEditors' Highlights
High Resolution Imaging of Ionosphere by Lightning
The three-dimensional distribution of electron density in the Earth’s ionosphere could be obtained using the broadband radiation of naturally occurring lightning discharges.
Posted inEditors' Highlights
Seeing Waves: GNSS Tracking of Waves in the Upper Atmosphere
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.
Posted inResearch Spotlights
Dramatic Stratospheric Warmings Carved a Hole in the Ionosphere
A new study of sudden temperature spikes in Earth’s stratosphere could improve space weather forecasting.
Posted inFeatures
How Sudden Stratospheric Warming Affects the Whole Atmosphere
High above Earth’s surface, air temperatures occasionally increase suddenly, producing widespread effects on weather, air chemistry, and telecommunications.
Posted inResearch Spotlights
Forecasting Space Weather Like Earth Weather
Researchers find that as with terrestrial weather, ensemble forecasting—which uses several different models simultaneously—is the best way to produce accurate and precise forecasts of space weather.
Posted inResearch Spotlights
Ionospheric Waves Linked to Polar Atmospheric Dynamics
Ionospheric waves are likely to be caused by processes in the polar atmosphere rather than by space weather.