19–21 Mar 2025
Physics Department
Europe/Athens timezone

The response of ANeMoS GLE Alert system to the recent Ground Level Enhancements of 2024

20 Mar 2025, 12:30
20m
Seminar Room (Physics Department )

Seminar Room

Physics Department

National and Kapodistrian University of Athens University Campus, Panepistimioupolis Zografos, 15784 Athens, GREECE

Speaker

Maria Gerontidou (National an Kapodistrian University of Athens)

Description

Three years after GLE 73 (October 28, 2021), three distinct GLEs took place before the end of 2024.The first event, GLE 74 registered on May 11, 2024, followed by GLE75 on June, 8 and GLE 76 on November 21. Each event exhibited unique characteristics in terms of intensity, temporal evolution, and spectral properties. Notably,GLE 74 occurred during an irregular Forbush Decrease with sharp amplitude reduction and rapid recovery. Specifically, a 15% decrease was recorded, followed by an exceptionally fast 10% recovery within 1.5 hours, as observed by the Oulu neutron monitor station.This event triggered the strongest geomagnetic storm in two decades (May 10–11, 2024), causing auroras at unprecedented latitudes worldwide.
In this study, we analyze and present the response of the GLE Alert system to these Ground Level Enhancements, offering insights into their implications for space weather forecasting and radiation hazard.

Session 2 - Intense Events of 2024

Primary authors

Maria Gerontidou (National an Kapodistrian University of Athens) Dr Pavlos Paschalis (National and Kapodistrian University of Athens) Helen Mavromichalaki (University of Athens) Maria Papailiou (University of Athens) Dimitra Lingri (National an Kapodistrian University of Athens)

Presentation materials

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