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- University of OuluFI23 papers
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5 papers · 1 filter
Properties and geoeffectiveness of solar wind high-speed streams and stream interaction regions during solar cycles 23 and 24
Maxime Grandin, Anita T. Aikio, Alexander Kozlovsky
We study the properties and geoeffectiveness of solar wind high-speed streams (HSSs) emanating from coronal holes and associated with stream interaction regions (SIRs). This paper…
FORESAIL-1 cubesat mission to measure radiation belt losses and demonstrate de-orbiting
FORESAIL collaboration, M. Palmroth, J. Praks +57
Today, the near-Earth space is facing a paradigm change as the number of new spacecraft is literally sky-rocketing. Increasing numbers of small satellites threaten the sustainable…
Assessment of the Radiation Environment at Commercial Jet Flight Altitudes During GLE 72 on 10 September 2017 Using Neutron Monitor Data
A. L. Mishev, I. G. Usoskin
As a result of intense solar activity during the first ten days of September, a ground level enhancement occurred on September 10, 2017. Here we computed the effective dose rates i…
Heliospheric modulation of cosmic rays during the neutron monitor era: Calibration using PAMELA data for 2006--2010
Ilya G. Usoskin, Agnieszka Gil, Gennady A. Kovaltsov +2
A new reconstruction of the heliospheric modulation potential for galactic cosmic rays is presented for the neutron monitor era, since 1951. The new reconstruction is based on an u…
Seasonal solar wind speeds for the last 100 years: Unique coronal hole structures during the peak and demise of the Grand Modern Maximum
Kalevi Mursula, Lauri Holappa, Renata Lukianova
Solar coronal holes are sources of high-speed solar wind streams, which cause persistent geomagnetic activity especially at high latitudes. Here we estimate seasonal solar wind spe…