Milla Kalliokoski¹, K Emilia J Kilpua¹, Drew L. Turner², Allison N Jaynes³, Adnane Osmane¹, Lucile Turc¹, Harriet George¹ and Minna Palmroth^1,4, (1)University of Helsinki, Department of Physics, Helsinki, Finland, (2)The Aerospace Corporation, Los Angeles, CA, United States, (3)University of Iowa, Iowa City, IA, United States, (4)Finnish Meteorological Institute, Helsinki, Finland