EGU22-11023, updated on 28 Mar 2022
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Ring Current Electron Precipitation During Storm Events

Alina Grishina1,2, Yuri Shprits1,2,3, Michael Wutzig1, Hayley Allison1, Nikita Aseev1,2, Dedong Wang1, and Matyas Szabo-Roberts1,2
Alina Grishina et al.
  • 1GFZ German Research Centre for Geosciences, Potsdam, Germany
  • 2University of Potsdam, Potsdam, Germany
  • 3University of California, Los Angeles, Los Angeles, CA, USA

The particle flux in the near-Earth environment can increase by orders of magnitude during geomagnetically active periods. This leads to intensification of particle precipitation into Earth’s atmosphere. The process potentially further affects atmospheric chemistry and temperature.

In this research, we concentrate on ring current electrons and investigate precipitation mechanisms on a short time scale using a numerical model based on the Fokker-Planck equation. We focus on understanding which kind of geomagnetic storm leads to stronger electron precipitation. For that, we considered two storms, corotating interaction region (CIR) and coronal mass ejection (CME) driven, and quantified impact on ring current. We validated results using observations made by POES satellite mission, low Earth orbiting meteorological satellites, and Van Allen Probes, and produced a dataset of precipitated fluxes that covers energy range from 1 keV to 1 MeV.

How to cite: Grishina, A., Shprits, Y., Wutzig, M., Allison, H., Aseev, N., Wang, D., and Szabo-Roberts, M.: Ring Current Electron Precipitation During Storm Events, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-11023,, 2022.