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In meteorology, clear-air turbulence (CAT) is the turbulent movement of air masses in the absence of any visual clues, such as clouds, and is caused when bodies of air moving at widely different speeds meet.
Convective turbulence is generally associated with storms and is caused by warm air rising. Clear air turbulence can be caused by a number of factors and is generally harder to predict than the ...
Turbulence - Wikipedia
The most common type, called clear air turbulence (CAT), is defined by the Federal Aviation Administration as “sudden severe turbulence occurring in cloudless regions that causes violent ...
The Singapore Airlines flight of May 21 was not hit by clear air turbulence, but rapidly developing thunderstorms. According to the NTSB, between 2009 and 2018, the flight crew had no warning in ...
A 2023 study published in the journal Geophysical Research Letters found that severe clear-air turbulence increased by more than 50% over the North Atlantic Ocean from 1979 to 2020.
In meteorology the Ellrod index is a technique for forecasting clear-air turbulence (CAT). It is calculated based on the product of horizontal deformation and vertical wind shear derived from numerical model forecast winds aloft. The deformation predictors are calculated using following information. Shearing deformation:
Convective turbulence is generally associated with storms and is caused by warm air rising. Clear air turbulence can be caused by a number of factors and is generally harder to predict than the ...