Ring of Fire

    Scientists carry out numerical modeling to predict the movement and spread of ash plumes. To see a sample animation for a plume from Mt. Cleveland,

Map showing Aleutian volcanic chain
    This analysis was made using a program named "PUFF." The yellow stars represent airplanes. Once they have observed or been affected by the ash plume, they turn red. Based on predictions from models such as PUFF, scientists can warn the aviation industry. That's a good thing to do!
Fying Tutangiaq
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