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Lidar Takes the Sky’s Temperature

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Hank Hogan

For climatologists, a key question isn't how high is the sky, but how hot is the sky. Understanding the temperature of various levels of the atmosphere is essential to developing global climate models. Now lidar, a photonics technology used to measure distance, is gauging atmospheric temperature up to the near reaches of outer space. Using lidar systems to monitor iron resonance lines, researchers are developing a better understanding of atmospheric temperature structures to produce better models of the global climate. Courtesy of the University of Illinois. Climate change should be...Read full article

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    Published: June 2001
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