At an approximately one hour drive from Tampere, Finland, the Hyytiälä Forestry Field Station has undertaken forest-related research from 1910. Since 1995, the SMEAR II station started continuous measurements of ecosystem atmosphere interactions. Nowadays, the station monitors forest ecophysiology and productivity, soil and water balance, meteorology, solar and terrestrial radiation, fluxes, ambient concentrations, atmospheric aerosols, and deposition.