EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Integral fluences of GLEs: A new full reconstruction

Ilya Usoskin1, Sergey Koldobskiy1, and Gennady Kovaltsov2
Ilya Usoskin et al.
  • 1University of Oulu, Finland
  • 2A.F. Ioffe Physical-Technical Institute, St. Petersburg, Russia

For many reasons, from solar physics to terrestrial and engineering applications, it is important to estimate the total fluences of solar energetic particles (SEPs) especially for the strongest hard-spectrum events known as ground-level enhancements (GLEs). Here we present a revised reconstruction of the SEP spectral fluences using a recently developed probabilistic Monte-Carlo method, applied to major GLE events of the last decades. The method utilizes data from the ground-based neutron-monitor network in the higher-energy range and revised space-borne/ionospheric data for the lower-energy part. The fluences are reconstructed along with realistic uncertainty estimates which appear large for weak events and small for strong events.

How to cite: Usoskin, I., Koldobskiy, S., and Kovaltsov, G.: Integral fluences of GLEs: A new full reconstruction, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-11286,, 2022.