天气传感器的预测：晴天，精度更高

　　天气传感器的预测：晴天，精度更高

　　说“天气传感器”，温度和气压传感器来记。不太知名的是许多其他新的传感器为基础的应用程序和方式来挖掘，治理和分析数据，成为各种行业的天气预报至关重要。

　　在航空领域，例如，超声风速仪测量表面的风，这是一个用于在机场着陆和起飞的关键参数，并采用公分，用激光或其他光源确定云底高度的装置。

　　Those of us who fly are all too familiar with the stomach-jolting， white-knuckled reactions to turbulence that are unfortunately part of the frequent-flyer experience. Although nothing can be done to stop the turbulence， American Airlines and Alaska Airlines are currently testing sensors and software that relay real-time data and then transmit warnings to other airlines. This is a vast improvement on the after-the-fact reporting on turbulence by pilots—often coming when it’s too late to take measures to avoid the weather disturbance.

　　NASA’s Weather Accident prevention program1 identifies severe turbulence as one of the eight technology strategies it is attempting to use to help make travel safer on commercial airliners and smaller aircraft. Turbulence （Figure 1） is the greatest cause of airline injuries and costs airlines an estimated $100 million a year， according to the space agency.