VOC measurements within a boreal forest during spring 2005: the role of monoterpenes and sulphuric acid in selected intense nucleation events
Author:
Eerdekens G.,Yassaa N.,Sinha V.,Aalto P. P.,Fiedler V.,Aufmhoff H.,Arnold F.,Kulmala M.,Williams J.
Abstract
Abstract. In this study we present measurements of selected trace gases and aerosol made in a boreal forest during the BACCI-QUEST IV intensive field campaign in Hyytiälä, Finland in April 2005. Several clear aerosol "nucleation events" were observed and characterized. One type of "event" occurred synchronously with huge increases in monoterpenes, while a second event type correlated instead with sulphuric acid. Here we elucidate the origin of these two distinct forms of aerosol production at the Hyytiälä site using the measurement data, airmass back trajectories and the optical stereoisomery of monoterpenes.
Publisher
Copernicus GmbH
Reference63 articles.
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