Statistical analysis of extreme electron fluxes in the radiation belts

DASSO, S.; LANABERE, V.

Exeter

Simposio; Space Weather of the Heliosphere: Processes and Forecasts; 2017

IAU

The main aim of this work is to study the frequency of extreme Space Weatherevents, in particular to analyse the tails of the daily averaged electron uxes distribution functionfor dierent channels of energy between 0.249{1.192 MeV measured at 600 km of altitudewith the particle detector ICARE-NG/CARMEN-1 on board argentinian polar satellite SAC-D.An extreme value theory was applied to estimate the maximum values of the electron ux inthe outer radiation belt for dierent return levels. We found that the cumulative distributionfunction of the extreme electron uxes presents a nite upper limit in (1) the core of the outerradiation belt for the lower energy channels and (2) in the inner edge of the outer radiation beltfor energy channels larger than 0.653 keV. The results presented in this work are important tocharacterise Space Weather conditions.