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Cirrus clouds often associated with clear-air turbulence. As is explained elsewhere in this article, temperature decreases and wind velocity increase with height in the troposphere, and the reverse is true within the stratosphere. These differences cause changes in air density, and hence viscosity.
What is turbulence and what causes it? There are four main levels of turbulence – light, moderate, severe and extreme. ... “Clear air turbulence is air movement created by atmospheric pressure ...
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 ...
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 ...
Clear-air turbulence experienced during airplane flight, as well as poor astronomical seeing (the blurring of images seen through the atmosphere). Most of the terrestrial atmospheric circulation. The oceanic and atmospheric mixed layers and intense oceanic currents.
Upper-level jet streams. Associated with upper-level jet streams is a phenomenon known as clear air turbulence (CAT), caused by vertical and horizontal wind shear connected to the wind gradient at the edge of the jet streams. [5] The CAT is strongest on the anticyclonic shear side of the jet, [6] usually next to or just below the axis of the ...
The Federal Aviation Administration defines clear-air turbulence (CAT) as “sudden severe turbulence occurring in cloudless regions that causes violent buffeting of aircraft … CAT is especially ...
Turbulence causes: Clear air turbulence; Mountain wave turbulence; Windshear; Thunderstorms; Microbursts; Wake turbulence; Aircraft icing; Systems anomalies: Flight instruments; Autoflight systems; Flight control and other anomalies; Pilot-Induced. Instrument cross-check; Adjusting attitude and power; Inattention; Distraction from primary ...