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    Fiber Optic Array Characterizes Thunder-Induced Ground Motions

    Article obtained from Photonics RSS Feed.

    A new study shows that underground fiber optic cables can pick up the rumble of thunder underground, potentially providing scientists with a new way of imaging the inside of Earth.

    Researchers used Pennsylvania State University’s existing fiber network for internet and phone service as a distributed acoustic sensing (DAS) array to observe the progress of thunderstorms as the storms crossed the campus. According to the researchers, the study is the first to demonstrate the use of preexisting underground telecommunication fiber optics to characterize thunder-induced seismic waves in the near surface.

    Penn State geophysicist Tieyuan Zhu and meteorologist David Stensrud gained access to the university’s…

    Dec, 18 2019 |

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