天氣傳感器的預(yù)測：晴天，精度更高

　　說“天氣傳感器”，溫度和氣壓傳感器來記。不太知名的是許多其他新的傳感器為基礎(chǔ)的應(yīng)用程序和方式來挖掘，治理和分析數(shù)據(jù)，成為各種行業(yè)的天氣預(yù)報至關(guān)重要。

　　在航空領(lǐng)域，例如，超聲風(fēng)速儀測量表面的風(fēng)，這是一個用于在機(jī)場著陸和起飛的關(guān)鍵參數(shù)，并采用公分，用激光或其他光源確定云底高度的裝置。

　　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.