GPS and radio telescopes can detect and locate rogue nuclear tests
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Signature of the 2009 NK nuclear test obtained by measuring changes in transmission time between a GPS satellite and a GPS ground station (Graph: Jihye Park, courtesy of Ohio State University)
GPS signatures for traveling ionospheric disturbances associated with the 2009 North Korea underground nuclear test – the later arrival times at more distant GPS stations is interpreted as the speed of the disturbance (Image: Jihye Park, courtesy of Ohio State University)
The inventor of the ionospheric UHE detector, Dr. Jihye Park, will shortly join a research group at the University of Nottingham
Ionospheric disturbance from a 1992 20-kiloton underground nuclear test as seen by the Very Large Array in Soccoro, New Mexico (Image: Joseph Helmboldt, Naval Research Laboratory)
Rogue nuclear tests can be detected in GPS and radio telescope adjustment noise (Image: Shutterstock)
Article Summary
Given that rogue nuclear tests are always conducted underground, the search for them has focused on efforts to refine the identification of characteristic seismic signatures. Now, researchers at Ohio State University (OSU) have discovered new detection methods in unlikely places – the rejected noise in GPS measurements and radio astronomy.
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