In the Madden-Julian Oscillation, shear forces caused by air layers slipping and sliding near the equator play a critical role in forming enormous thunderstorms and monsoons.
radar & radio
Posted inResearch Spotlights
Decoding the Radio Transmissions of Shooting Stars
Spectacular fireball meteors don't just light up the night sky—recent observations show they also emit mysterious high-frequency radio waves. Now scientists think they understand why.
Posted inNews
Antarctic Ice May Harbor Huge Network of Canyons
Scientists saw hints in satellite data of dramatic geologic features under thousands of meters of ice in a little-probed part of East Antarctica. Now they are using airborne radar to explore further.
Posted inNews
Human Radio Transmissions Create Barrier to "Killer Electrons"
An interaction between radio waves and the Van Allen radiation belts creates a bubble around the Earth that high-energy electrons can't penetrate.
Posted inResearch Spotlights
Ice-Penetrating Radar Reveals Age of Greenland Ice Sheet Layers
First comprehensive analysis of deep radar data gives insight into the dynamics and history of the Greenland Ice Sheet.
Posted inScience Updates
Coastal Altimetry Challenges Our Understanding of Short Scales in the Ocean
8th Coastal Altimetry Workshop; Konstanz, Germany, 23–24 October 2014
Posted inResearch Spotlights
Radio Blackout! Ham Radio as an Operational and Scientific Instrument
Monitoring solar activity that disrupts communications can be helped by crowdsourced and automated reports from amateur radio operators.
Posted inResearch Spotlights
Reading Backscatter from Near-shore Ocean Waves
Researchers use radar wave scattering properties of nearshore waves to studying shoreline dynamics.