Sentences with phrase «clear air turbulence»

Other researchers have warned more than once that as temperatures rise, so will the challenge of clear air turbulence.

Clear air turbulence is an enduring problem for commercial aircraft: pilots can not see it coming, it doesn't reflect signals to onboard radar, and satellite monitors can not detect it.

Clear air turbulence is calculated to cost airlines # 100 million ($ 150 million) a year in delays and damage, and although air crew and passengers have been facing such discomforts almost since the invention of flight 110 years ago, the mechanisms of turbulence are still, in that famously enigmatic scientific phrase, «not fully understood.»

Finally, they say, any increase in clear air turbulence would have important implications for large - scale atmospheric circulation, because clear air turbulence contributes significantly to exchanges between the stratosphere and the lower atmosphere.

Pilots however encounter moderate or uncomfortable clear air turbulence at least one per cent of cruise time.

Not exact matches

Climate models and turbulence algorithms forecast that, by mid-century, clear - air turbulence will be more violent and transatlantic flights will hit it twice as often.

Although observatories are built at sites that typically have clear skies and relatively calm air layers, the only ways to get truly sharp images is go above the atmosphere (think Hubble Space Telescope) or to build highly complicated adaptive optics systems that correct for the atmospheric turbulence (and even most imperfections of the telescope itself).

A previous University of Reading study led by Dr Williams found that clear - air turbulence will become stronger and more frequent as a result of global warming.

The forecasting of clear - air turbulence (CAT) continues to be a challenging problem despite progress made in the understanding of vertical shear (Kelvin - Helmholtz) instabilities.