The field study on Biogenic Aerosols-Effects on Clouds and Climate (BAECC 2014) was conducted at the Station for Measuring Ecosystem Atmosphere Relations (SMEAR II) in Hyytiälä Finland. Our main objective was to observe gaseous precursors of secondary organic aerosols, to better understand new particle formation events and their contribution to CCN activity. The SMEAR II site – situated in a remote, monoterpene-dominated pine forest – provided a great opportunity. The experiment was funded by the U.S. Department of Energy.
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