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  • Presentation | SA52A: Atmosphere-Ionosphere Coupling During Impulsive Events II Oral
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  • SA52A-07: GUARDIAN Scout: First Global AI-Driven System for Automated Detection of Ionospheric Disturbances from Natural Hazards
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Author(s):
Camille Martire, NASA Jet Propulsion Laboratory, California Institute of Technology (First Author, Presenting Author)
Siddharth Krishnamoorthy, NASA Jet Propulsion Laboratory, California Institute of Technology
Wenwen Lu, NASA Jet Propulsion Laboratory, California Institute of Technology
Michele Vallisneri, ETH Zürich
Bela Szilagyi, NASA Jet Propulsion Laboratory, California Institute of Technology
Larry Romans, NASA Jet Propulsion Laboratory, California Institute of Technology
Attila Komjathy, NASA Jet Propulsion Laboratory, California Institute of Technology
Yoaz Bar-Sever, NASA Jet Propulsion Laboratory, California Institute of Technology


Natural disasters (e.g., earthquakes and tsunamis) create powerful waves that ripple through the atmosphere and disturb the Earth's ionosphere. These disturbances can be detected using signals from navigation satellites like GPS. This satellite-based monitoring is especially valuable in oceanic or remote regions where ground sensors are limited or unavailable.


To improve this type of detection, NASA’s Jet Propulsion Laboratory developed GUARDIAN, which has provided open, global, near-real-time data on the ionosphere since 2022. GUARDIAN complements conventional methods by offering a broad view of ionospheric disruptions caused by both natural and anthropogenic events.


The latest enhancement, GUARDIAN Scout, leverages artificial intelligence to automatically detect disaster-related signals in near-real-time by scanning satellite data for perturbations. When an event is identified, Scout issues notifications to subscribed users and posts visual summaries on the GUARDIAN web portal (https://guardian.jpl.nasa.gov/). Scout notably detected the ionospheric signal from the powerful Kamchatka earthquake just 20 minutes after it struck, shortly after the very first tsunami watch messages.


With Scout, GUARDIAN becomes (to the best of our knowledge) the world’s first automated, AI-driven, near-real-time detection system for atmospheric signals linked to disasters. This breakthrough enhances our ability to confirm major events quickly, supporting faster and better-informed global response efforts.




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