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The NCAR team spent the next ten years working on the problem with researchers at airlines, universities, the F.A.A., NASA, and NOAA—the National Oceanic and Atmospheric Administration. “It was a national imperative,” Cornman said. Luckily, the beginnings of a solution were already in place. The team at NCAR had used sophisticated new Doppler radar systems to detect microbursts. When those were added to the wind detectors already installed at many airports, and the two systems were integrated with software that Cornman developed, microbursts could be detected as they were happening. “A problem where hundreds of people were dying suddenly stopped,” Cornman said. The last time a commercial flight was downed by a microburst in the U.S. was in 1994.
That image has always stuck with me, both as a sobering comment on my sex and as a grisly worst-case scenario. So it was strange, this fall, to be looking for a bumpy ride. Some sixteen million flights crisscross the United States each year. Of those, roughly one in every two hundred and fifty gets hit by moderate-or-greater turbulence—strong enough to make passengers feel “a definite strain against their seat belts,” as the National Weather Service describes it. One in every three thousand flights encounters severe turbulence: “The airplane may momentarily be out of control. Occupants of the airplane will be forced violently against their seat belts.” By that scale, the worst turbulence I’ve felt could only qualify as light: “slight erratic changes in altitude.” To definitely experience more, I would have to fly in a very small aircraft.
В МОК высказались об отстранении израильских и американских спортсменов20:59