• GLE Alert Plus

    Real time Alert system for Ground Level Enhacement (GLE) events which monitors the recordings of each NM station providing data to NMDB.

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GLE Alert Plus

Solar Particle Events (SEPs) are a manifestation of violent energy release processes occurring at the solar atmosphere, such as solar flares (SFs) and coronal mass ejections (CMEs). Neutron monitors record secondary cosmic rays created by interactions of 500 MeV primary cosmic rays with the Earth's atmosphere. Large SEPs are being registered at the Earth by ground based recorders as Ground Level Enhancements (GLEs). The propagation of the extreme and hazardous SEPs, from the Sun to the Earth depends on the energy. Due to the fact that neutron monitors record only particles of the highest energies (> 500 MeV) it is evident that NMs will register extreme SEPs (GLEs) rather promptly. Therefore GLE observations by NMs makes it possible to establish a warning signal on the arrival of lower and mid energy charged particles. The physical concept of the GLE Alert Plus software is based on the idea that the early detection of an Earth-directed cosmic ray event by NMs gives a good chance of preventive monitoring SEP-flux rise, providing an Alert with a very low probability of false alarm.
GLE Alert Plus system is develped by ISNet. It uses Neutron Monitor Data from NMDB and is supported by National and Kapodistrian University of Athens (NKUA) and European Space Agency (ESA).

Please read the product Disclaimer.

Please click the appropriate links below if need more information about the GLE Alert Plus system.


Contact us

Intelligent Systems Networks
Argiroupoleos 91, Argiroupolis
Athens 16451, Greece
T: +30 210 4830600
F: +30 210 4813175
Working time:
Mon-Fri: 10:00 to 18:00

Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


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Request for collaboration

Small scientific teams go for collaborations and cooperation in implementation of their activities.

ISNet is a growing scientific organization which is looking for smooth implementation of their projects.

We, the team at ISNet, are alive to the rapidly changing trends and provide customized solutions keeping in view the individual needs. We believe in developing mutually beneficial relationships. The relationship will bring mutual benefits.

Benefits of Collaboration:

We believe that together we can bring strong optimization in every project that both together could hanlde.

If you interest in send us a mail to: This email address is being protected from spambots. You need JavaScript enabled to view it.

Latest News

GLE Alert Plus

Gle Alert plus is real time system which created for SSA Space Weather Coordination Centre (SSCC).



The Neutron Monitor Database (NMDB) Project started in January 2008 and officially ended at January 2010. We still continue support this effort till today. The NMDB was a FP7 project.

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