cc-by-4.0Lampilahti, JanneLeino, KatriManninen, AnttiPoutanen, PyryFranck, AnnaPeltola, MaijaHietala, PaulaBeck, LisaDada, LubnaQuéléver, LaurianeÖhrnberg, RonjaZhou, YingEkblom, MadeleineVakkari, VilleZilitinkevich, SergejKerminen, Veli-MattiPetäjä, TuukkaKulmala, Markku2025-03-242020-10-022020-10-02https://hydatakatalogi-test-24.it.helsinki.fi/handle/123456789/10331This dataset contains the following data: -Doppler lidar measurements from Hyytiälä, Finland (May 1-2, 2017) -Ion spectrometer data from Hyytiälä, Finland (May 2, 2017) -Airborne measurement data from southern Finland using an instrumented Cessna 172 (several campaigns between 2011-2018) -New particle formation event classifications from Hyytiälä, FinlandOpendataset