Secondary aerosol formation – interdisciplinary approaches to atmospheric gas-to-particle conversion studies
O 3.1 in Ökosysteme: Funktion und Leistungen
11.10.2012, 11:30-11:45, H8
Aerosol particles influence the atmospheric radiation budget, and thus climate, directly by scattering and absorbing light, and indirectly by modifying cloud formation and cloud properties. Secondary aerosol formation from natural precursor gases is a key control of aerosol number and size in the atmosphere. For example, in the Fichtelgebirge mountains we observe new particle formation on more than 25 % of summer days, and oxidation products of biogenic volatile organic compounds emitted by spruce trees seem to play an important role in this process. An improved understanding of secondary aerosol formation requires interdisciplinary process studies in various environments. We will present current experimental results and ongoing investigations of secondary aerosol formation in forests, above salt lakes, and in controlled smog chamber simulations. This will also highlight future research needs and potential collaborations with, e.g., meteorologists, plant physiologists, hydrologists, and environmental scientists in general.
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