27 citations · 60 across the 3 of their papers we have counts for
3 papers
physics.space-ph2019★ 7 cited
Explicit IMF -effect maximizes at subauroral latitudes (Dedicated to the memory of Eigil Friis-Christensen)
Lauri Holappa, Nat Gopalswamy, Kalevi Mursula
The most important parameter in the coupling between solar wind and geomagnetic activity is the -component of the interplanetary magnetic field (IMF). However, recent studies…
physics.space-ph2016★ 27 cited
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…
astro-ph.SR2015★ 26 cited
Occurrence of high-speed solar wind streams over the Grand Modern Maximum
Kalevi Mursula, Renata Lukianova, Lauri Holappa
In the declining phase of the solar cycle, when the new-polarity fields of the solar poles are strengthened by the transport of same-signed magnetic flux from lower latitudes, the…