[1
]Department of Space PhysicsInstitute of Atmospheric Physics Prague Czechia
[2
]Faculty of Mathematics and PhysicsCharles University Prague Czechia
[3
]Department of Physics and AstronomyUniversity of Iowa Iowa City Iowa USA
[4
]Department of PhysicsUniversity of Otago Dunedin New Zealand
[5
]Institute for Space‐Earth Environmental ResearchNagoya University Nagoya Japan
[6
]Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy of Siberian Branch of
the Russian Academy of SciencesYakut Scientific Centre of Siberian Branch of the Russian
Academy of Sciences Yakutsk Russia