Organization
Institute for Space-Earth Environmental Research Designated Assistant Professor
Title
Designated Assistant Professor
LARSEN Nicholas peter
Degree 1
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PhD (Science) （ 2025.2 The University of Oulu, Finland ）
Papers 5
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Features of Ground Level Enhancement (GLE #74) Event on 11 May 2024 Reviewed International coauthorship Open Access
Mishev, A., Larsen, N., Koldobskiy, S., Hayakawa, H., Ebihara, Y., & Usoskin, I.
Journal of Geophysical Research: Space Physics 2026.10
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The first four ground-level enhancements in the 1940s: investigation, digitization and analysis of forgotten data Reviewed International coauthorship Open Access
Hisashi Hayakawa, Stepan Poluianov, Sergey Koldobskiy, Aleksander Mishev, Nicholas Larsen, Inna Usoskina, Ilya Usoskin
Philosophical Transactions of the Royal Society A 2026.9
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Near-Earth Cosmic Ray Modulation Index ϕ and Neutron Monitor Cutoff Rigidities at Hourly Cadence: Toward an Improved Monitoring of Solar-Terrestrial Radiation Environment, Space Weather, and Space Climate Reviewed International coauthorship Open Access
Väisänen, P., Larsen, N., Koldobskiy, S., Similä, M., Pelosi, D., & Orcinha, M.
Journal of Geophysical Research: Space Physics 2026.7
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Reduced Geomagnetic Shielding During the Laschamps Excursion and Its Impact on Cosmic-Ray-Induced Atmospheric Radiation Reviewed International coauthorship Open Access
Larsen, N. and Usoskin, I. and Mishev, A. and Koldobskiy, S. and Väisänen, P.
Journal of Geophysical Research: Space Physics 2026.2
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Neutron monitor based incoming flux correction for cosmic-ray neutron sensing of environmental water Reviewed International coauthorship Open Access
Hertle, L., Zacharias, S., Larsen, N., Rasche, D., McJannet, D., & Schrön, M.
Water Resources Research 2025.8
Presentations 4
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Revisiting the Tsyganenko 1989 Magnetospheric Model and its Extension to Storm Conditions International conference
Nicholas Larsen
Space Climate 10 2026.6.12 The University of Oulu
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Worst-case space weather scenarios for aircraft radiation exposure Invited International conference
2025.10.2
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Aviation Radiation Monitoring and Modelling via Citizen Science Invited International conference
Nicholas Larsen
Astronomy and Citizen Science 2025.9.25 Inter-University Research Institute for Human Cultures, Nagoya University
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Reassessment of the Tsyganenko 1989 Model and Storm-time Applications International conference
Nicholas Larsen
The 10th Asia Research Node (ARN) Symposium on Humanosphere Science 2025.9.18