Supplement to: Freud, Eyal; Krejci, Radovan; Tunved, Peter; Leaitch, W Richard; Nguyen, Quynh T; Massling, Andreas; Skov, Henrik; Barrie, Leonard (2017): Pan-Arctic aerosol number size distributions: seasonality and transport patterns. Atmospheric Chemistry and Physics, 17(13), 8101-8128, https://doi.org/10.5194/acp-17-8101-2017