While part of our group and our instrumentation was flying aboard the NOAA WP-3D aircraft in the Southeastern U.S. during SENEX, we simultaneously deployed a HR-ToF-CIMS at the ground site in Centerville, Alabama, as part of the Southern Oxidant and Aerosol Study (SOAS). Similar and complementary to the aircraft measurements, the six-week ground-based field campaign during the summer of 2013 focused on the study of biosphere-atmosphere and biogenic‐anthropogenic interactions to address the question of the cooling trend in this region.
We investigated chemical compounds in both the gas and particle phases with our newly developed FIGAERO (Filter Inlet for Gases and Aerosols, Lopez-Hilfiker et al.). Close to six weeks of continuous data with a time resolution of ~2 hrs of both gas and particle phase components will give us new insights into oxidation processes of biogenic and anthropogenic volatile organic compounds and subsequent particle formation.