Articles | Volume 38, issue 2
Ann. Geophys., 38, 557–574, 2020
https://doi.org/10.5194/angeo-38-557-2020
Ann. Geophys., 38, 557–574, 2020
https://doi.org/10.5194/angeo-38-557-2020

Regular paper 21 Apr 2020

Regular paper | 21 Apr 2020

Cosmic noise absorption signature of particle precipitation during interplanetary coronal mass ejection sheaths and ejecta

Emilia Kilpua et al.

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Latest update: 15 Jun 2021
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Short summary
Coronal mass ejection sheaths and ejecta are key drivers of significant space weather storms, and they cause dramatic changes in radiation belt electron fluxes. Differences in precipitation of high-energy electrons from the belts to the upper atmosphere are thus expected. We investigate here differences in sheath- and ejecta-induced precipitation using the Finnish riometer (relative ionospheric opacity meter) chain.