Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)Juho AaltoPasi AaltoPetri KeronenPasi KolariPekka RantalaRisto TaipaleMaija KajosJohanna PatokoskiJanne RinneTaina RuuskanenMatti LeskinenHeikki LaaksoJanne LevulaToivo PohjaErkki SiivolaMarkku Kulmala2025-04-292019-09-05https://datakatalogi.helsinki.fi/handle/123456789/661This dataset contains long-term measurements of 1) atmospheric greenhouse gas and trace gas concentrations (O3, NO, NO2, SO2, CO, CO2, H2O, CH4 and VOC) and 2) meteorology, solar and terrestrial radiation, and soil done at SMEAR II research station near Hyytiälä Forestry Field Station, Juupajoki, Finland during years 1996–2018.7234387500Openhttps://creativecommons.org/licenses/by-sa/4.0/air temperaturerelative humiditysoil temperaturesolar radiationgreenhouse gasestrace gasesair pollutionboreal forestdataset