(2019-05-04) Mikola, Juha; Virtanen, Tarmo; Linkosalmi, Maiju; Vähä, Emmi; Nyman, Johanna; Postanogova, Olga; Räsänen, Aleksi; Kotze, D. Johan; Laurila, Tuomas; Juutinen, Sari; Kondratyev, Vladimir; Aurela, Mika; University of Helsinki - Mikola, Juha; University of Helsinki - Virtanen, Tarmo; Finnish Meteorological Institute - Linkosalmi, Maiju; University of Helsinki - Vähä, Emmi; University of Helsinki - Nyman, Johanna; University of Helsinki - Räsänen, Aleksi; University of Helsinki - Kotze, D. Johan; University of Helsinki - Laurila, Tuomas; University of Helsinki - Juutinen, Sari; Finnish Meteorological Institute - Aurela, Mika