Lauri Holappa

most citedSeasonal solar wind speeds for the last 100 years: Unique coronal hole structures during the peak and demise of the Grand Modern Maximum

27 citations · 34 across the 2 of their papers we have counts for

collaborators

2 papers

physics.space-ph2019★ 7 cited

Explicit IMF $B_{y}$ -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 $B_{z}$ -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…

Explicit IMF By​-effect maximizes at subauroral latitudes (Dedicated to the memory of Eigil Friis-Christensen)

Seasonal solar wind speeds for the last 100 years: Unique coronal hole structures during the peak and demise of the Grand Modern Maximum

Explicit IMF $B_{y}$ -effect maximizes at subauroral latitudes (Dedicated to the memory of Eigil Friis-Christensen)