NASA Researchers Detect Tsunamis by Their Rumble in the Atmosphere NASA's Jet Propulsion Laboratory (JPL) is testing a n…

NASA Researchers Detect Tsunamis by Their Rumble in the Atmosphere

NASA's Jet Propulsion Laboratory (JPL) is testing a novel approach to detect tsunamis from the far reaches of the atmosphere using a new hazard-monitoring technology called GUARDIAN (GNSS Upper Atmospheric Real-time Disaster Information and Alert Network). This experimental system utilizes data from clusters of GPS and other navigational satellites, collectively known as global navigational satellite systems (GNSS), to detect the ocean's deadliest waves. The technology works by monitoring the disturbances in the ionosphere caused by tsunamis, which can distort the signals from nearby navigational satellites. The system is still in development but has already shown promise as one of the fastest monitoring tools of its kind, potentially providing up to an hour of warning depending on the distance of the tsunami origin from the shore.

@science