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Before we dive into the math, could you let me know which grade you're in? Also, when you hear the term "mean free path," what do you think it depends on? For example, if you imagine molecules in a gas, what physical factors would make it harder for a molecule to travel a long distance without hitting something?
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Фото: Stringer / Reuters
There’s just one hitch: the system still needs guinea pigs. Even the best weather models can’t pinpoint where clear-air turbulence will occur. So the NCAR programs continue to rely on firsthand reports from planes that have already been tossed around. New technologies could change that in coming years. A plane equipped with a lidar sensor—which uses lasers to detect much finer particles than radar can—could pick up on turbulence even in a cloudless sky. But lidar systems are still too bulky and expensive to fit into a plane’s nose cone. And the government and the airline industry have been slow to invest in improving them. For now, the best hope for a flight heading into turbulence might be to program the plane itself to ride the bumps.