Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)Leena JärviAnnika NordboTom KokkonenMona KurppaPekka RantalaSami HaapanalaPasi Aalto2025-04-292019-09-05https://datakatalogi.helsinki.fi/handle/123456789/644This dataset contains time series of turbulent exchange of CO2, heat, momentum and particles measured at two SMEAR III urban research sites, Hotel Torni and Erottaja Fire Station, in the centre of Helsinki, Finland, during years 2010–2017.40033014Openhttps://creativecommons.org/licenses/by-sa/4.0/net ecosystem exchangeevapotranspirationsensible heat fluxaerosol depositiondataset