A New Uncertainty in Space Weather Predictions: Magnetospheric Response to IMF By

Lauri Holappa1, Jone Peter Reistad2, Anders Ohma2 and Timo Asikainen3, (1)University of Oulu, Space Physics and Astronomy Research Unit, Oulu, Finland, (2)University of Bergen, Department of Physics and Technology, Birkeland Centre for Space Science, Bergen, Norway, (3)University of Oulu, ReSoLVE Centre of Excellence, Space Climate Research Unit, Oulu, Finland