Phát âm chuẩn – Anh ngữ đặc biệt: Weather Drones (VOA)

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Scientists are developing pilotless planes, or drones, to gather weather information from the atmosphere. The drones could help weather experts improve their predictions. They already place satellites, drones and balloons at different levels in the atmosphere. And they use radar and gather information from devices on towers. But that information only helps experts predict weather conditions for the next few days. It does not help predict changes within hours. So scientists at Oklahoma State University are developing new drones to gather information from more parts of Earth’s atmosphere. This will help predict local weather conditions. Jamey Jacob leads Oklahoma State University’s Unmanned Systems Research Institute. He and other scientists are developing small drones that do not cost a lot of money. They can fly for hours, gathering information from many atmospheric levels. The scientists have developed a round drone that can fly, roll on the ground and then take off again. This is important in stormy weather. Phillip Chilson is a professor at Oklahoma State University. He says the drone can measure atmospheric conditions, send live video to weather experts, and help search for people hurt in storms. Researchers say they still have a lot of work to do before the drones are ready. That includes making sure the drones know how to stay away from other planes.

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