Doctoral Researcher in the Space Climate Research Unit. I study the long-term galactic cosmic ray variability caused by solar activity. I study the variations at different spatial and temporal scales employing especially spectral and Fourier analysis. I'm also interested in how turbulent phenomena manifest in the variation of galactic cosmic rays. My research data consists of measurements by our universities and other global neutron monitors and in-situ spacecraft instruments that include measurements of cosmic ray variation, the heliospheric magnetic field and solar wind speed, temperature and density.
I have also been active in many working groups in the academic community, such as the Research Council, Faculty Board, The University of Oulu Academics and earlier in the University Board. I am also a vice representative of junior researchers in the national junior researchers working group, which is led by the Finnish Union of University Researchers and Teachers.
- Doctoral Researcher, Space Climate
- Väisänen, Pauli; Usoskin, Ilya; Mursula, Kalevi (2019) Long‐Term and Solar Cycle Variation of Galactic Cosmic Rays: Evidence for Variable Heliospheric Turbulence. - Journal of geophysical research : space physics 124 (2), 804-811 . [Original] [Self-archived]
- Väisänen, Pauli; Usoskin, Ilya; Mursula, Kalevi (2017) Structure of the Power Spectral Density of Galactic Cosmic Ray Variation during 1953-2016. (Artikkeli tieteellisessä konferenssijulkaisussa). - Proceedings IAU Symposium No. 335, 2017. Space Weather of the Heliosphere: Processes and Forecasts. 17-21 July, University of Exeter, United Kindom. Foullon, C.; Malandraki, O.E.. Proceedings of the International Astronomical Union Volume 13, Symposium S335, July 2017. 82-86. [Original] [Self-archived]
Visiting Researcher at the University of Reading in England– 2.5.2019 to 30.6.2019