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A modern jet has an array of sensors to help it contend with bad weather. Magnetometers track the plane’s direction; gyroscopes help calculate its pitch and roll; accelerometers detect its changes in speed; Doppler radar measures the distance to the storm and how quickly it’s moving. In the early nineties, Larry Cornman developed a program that could sift through some of that sensor data to measure the air’s turbulence in real time. Atmospheric scientists call this the “eddy dissipation rate,” or E.D.R. It’s usually scored between 0 and 1—calm to severe.
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“马年主题”光影秀技术负责人韦宇翔说，为了让每个画面都贴合楼的轮廓，在素材制作时，技术人员对黄鹤楼主楼进行了1∶1的三维建模，将每一根梁柱、每一片瓦当的坐标都录入系统。
McGhee said Tamang was crossing the road when he was struck by Clarke-Samuel's car.