Articles | Volume 38, issue 2
Ann. Geophys., 38, 557–574, 2020
Ann. Geophys., 38, 557–574, 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.

Related authors

Ion distribution functions in magnetotail reconnection: Global hybrid-Vlasov simulation results
Andrei Runov, Maxime Grandin, Minna Palmroth, Markus Battarbee, Urs Ganse, Heli Hietala, Sanni Hoilijoki, Emilia Kilpua, Yann Pfau-Kempf, Sergio Toledo-Redondo, Lucile Turc, and Drew Turner
Ann. Geophys. Discuss.,,, 2021
Revised manuscript accepted for ANGEO
Short summary
Predictability of the variable solar-terrestrial coupling
Ioannis A. Daglis, Loren C. Chang, Sergio Dasso, Nat Gopalswamy, Olga V. Khabarova, Emilia Kilpua, Ramon Lopez, Daniel Marsh, Katja Matthes, Dibyendu Nandi, Annika Seppälä, Kazuo Shiokawa, Rémi Thiéblemont, and Qiugang Zong
Ann. Geophys. Discuss.,,, 2021
Revised manuscript under review for ANGEO
Magnetic field fluctuation properties of coronal mass ejection-driven sheath regions in the near-Earth solar wind
Emilia K. J. Kilpua, Dominique Fontaine, Simon W. Good, Matti Ala-Lahti, Adnane Osmane, Erika Palmerio, Emiliya Yordanova, Clement Moissard, Lina Z. Hadid, and Miho Janvier
Ann. Geophys., 38, 999–1017,,, 2020
Short summary
Outer Van Allen belt trapped and precipitating electron flux responses to two interplanetary magnetic clouds of opposite polarity
Harriet George, Emilia Kilpua, Adnane Osmane, Timo Asikainen, Milla M. H. Kalliokoski, Craig J. Rodger, Stepan Dubyagin, and Minna Palmroth
Ann. Geophys., 38, 931–951,,, 2020
Short summary
Outer radiation belt and inner magnetospheric response to sheath regions of coronal mass ejections: a statistical analysis
Milla M. H. Kalliokoski, Emilia K. J. Kilpua, Adnane Osmane, Drew L. Turner, Allison N. Jaynes, Lucile Turc, Harriet George, and Minna Palmroth
Ann. Geophys., 38, 683–701,,, 2020
Short summary

Cited articles

Aminaei, A., Honary, F., Kavanagh, A. J., Spanswick, E., and Viljanen, A.: Characteristics of night-time absorption spike events, Ann. Geophys., 24, 1887–1904,, 2006. a
Amm, O.: Ionospheric elementary current systems in spherical coordinates and their application, J. Geomagn. Geoelectr., 49, 947–955, 1997. a
Amm, O. and Viljanen, A.: Ionospheric disturbance magnetic field continuation from the ground to ionosphere using spherical elementary current systems, Earth Planet. Space, 51, 431–440, 1999. a
Andersson, M. E., Verronen, P. T., Rodger, C. J., Clilverd, M. A., and Seppälä, A.: Missing driver in the Sun-Earth connection from energetic electron precipitation impacts mesospheric ozone, Na. Commun., 5, 5197,, 2014. a
Aryan, H., Yearby, K., Balikhin, M., Agapitov, O., Krasnoselskikh, V., and Boynton, R.: Statistical study of chorus wave distributions in the inner magnetosphere using Ae and solar wind parameters, J. Geophys. Res.-Space, 119, 6131–6144,, 2014. a
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.