Description of EC flux sites

Helsinki Hotel Torni

(Contact persons:Leena Järvi, Annika Nordbo,Timo Vesala)

EC fluxes are measured downtown in Helsinki on the roof of Hotel Torni. EC system is located at 60 m above the ground, and it includes the three dimensional sonic anemometer Metek USA-1 (u, v, w, Ts), the enclosed-path gas analyser Licor_7200 (CO2 and H2O) and the WCPC_3781 (aerosol particle number concentration).