clear-air turbulence

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  • noun

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strong turbulence in an otherwise cloudless region that subjects aircraft to violent updrafts or downdrafts

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Clear-air turbulence, which is not visible to the naked eye and cannot be picked up by satellite or traditional radar, is linked to atmospheric jet streams, which are projected to strengthen with climate change.
It's called clear-air turbulence, and a new forecasting method developed by a researcher at the University of Georgia could help pilots chart new courses around these patches of rough air that can turn an otherwise unremarkable flight into one to write home about.
Kate pointed out many uses, including detecting clear-air turbulence and avalanches and monitoring atmospheric explosions.
His work on the scattering of blue-green light by a turbulent medium led to a scheme for detection of clear-air turbulence.
Q: When flying I have often experienced clear-air turbulence.
Up the best part of 100 on Monday, down nearly 200 yesterday, the stock market has run into some clear-air turbulence.
Looking to keep passengers safe when airplanes are jarred by clear-air turbulence, NASA is working on a warning system that would give pilots time to change course or get travelers belted in.
The new radar reinforces performance by adding innovative features: dual polarization observation enhances the precision of rainfall estimation by capturing the shape and size of raindrops and cloud; clear-air turbulence observation detects very low levels of signal scattering, enabling to observe air conditions including wind speed even in clear weather -- a very difficult task for most weather radars.
When examining 21 clear-air turbulence diagnostics the study shows that all 21 would increase in either light or light-to-moderate turbulence, and 16 would show increases in moderate, moderate-to-severe and severe turbulence.
This means deep, widespread clear-air turbulence through much of Colorado, New Mexico, Wyoming, Utah, and adjacent states.