University of Oulu

Ilya Usoskin

CV
The group
List of publications
Position Professor, Head of Oulu Cosmic Ray station
Vice-Director of ReSoLVE Center of Excellence
Address: Sodankyla Geophysical Observatory (Oulu unit) and Dept. of Physics
P.O.Box 3000, FIN-90014 University of Oulu
FINLAND
Telephone: +358-50-3441247
e-mail:
Room: FY256-A
Official website: Ilya Usoskin
Photograph

New opportunity: Visitors grants are available in the framework of ESPERA project

ALL publications --> click HERE

Recent publications:
NEW -> Larsen, N., I. Usoskin, A. Mishev, S. Koldobskiy, P. Vaisanen (2026). Reduced Geomagnetic Shielding During the Laschamps Excursion and Its Impact on Cosmic-Ray-Induced Atmospheric Radiation. J. Geophys. Res. Space Phys., 131(2), e2025JA034820. Doi: 10.1029/2025JA034820

  • Koldobskiy, S., I. Usoskin, V. Vasiliev, A. Shapiro (2025) Solar flares versus solar energetic particle events: Probabilistic projections to extreme events, Astron. Astrophys., 702, A195, doi: 10.1051/0004-6361/202556069
  • Laurenza, M., Shiokawa, K., Molina, M.G. et al. (2025) COURSE: Cross-scale cOUpling pRocesses in the Solar--tErrestrial system--SCOSTEP's new program for 2026-2030. Earth Planets Space 77, 180. Doi: 10.1186/s40623-025-02283-w
  • Poluianov, S., A. Mishev, O. Kryakunova ... I. Usoskin (2025) Ground-Level Enhancement of 8 June 2024 (GLE 75) Caused by Solar Energetic Particles. Solar Phys. 300, 113, doi: 10.1007/s11207-025-02518-9
  • Vaisanen, P., B. Bertucci, N. Tomassetti, M. Orcinha, I. Usoskin, S. Koldobskiy (2025) Simulation of galactic cosmic ray proton fluxes with the daily modulation parameter: Validation with AMS-02 data for 2011--2019, J. Geophys. Res. Space Phys. 130, e2025JA033805. Doi: 10.1029/2025JA033805
  • Chatzistergos, T., N. Krivova, H. Sundermann, I. Usoskin (2025) Assessment of sunspot number cross-calibration approaches, Astron. Astrophys. 699, A157, doi: 10.1051/0004-6361/202554896
  • Usoskin, I., T. Chatzistergos, S.K. Solanki, N. Krivova, G. Kovaltsov, N. Brehm, M. Christl, L. Wacker (2025) Sunspot cycles for the first millennium BC reconstructed from radiocarbon, Astron. Astrophys. 698, A182, doi: 10.1051/0004-6361/202555148
  • Golubenko, K., I. Usoskin, E. Rozanov, E. Bard (2025) New SOCOL:14C-Ex model reveals that the Late-Glacial radiocarbon spike in 12350 BC was caused by the record-strong extreme solar storm, Earth Planet. Sci. Lett., 661, 119383, doi: 10.1016/j.epsl.2025.119383.
  • Papaioannou, A., A. Mishev, I. Usoskin, et al. (2025) The High-Energy Protons of the Ground Level Enhancement (GLE74) Event on 11 May 2024, Sol. Phys., 300, 73, doi: 10.1007/s11207-025-02486-0

    • Visits during the last month/day: