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Modeling Aerosol Water Uptake in The Arctic Based on The kappa-Kohler Theory
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Meteorology .
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2013 (English)In: NUCLEATION AND ATMOSPHERIC AEROSOLS, American Institute of Physics (AIP), 2013, 702-705 p.Conference paper (Refereed)
Abstract [en]

Water uptake or hygroscopicity is one of the most fundamental properties of atmospheric aerosols. Aerosol particles containing soluble materials can grow in size by absorbing water in ambient atmosphere. This property is measured by a parameter known as growth factor (GF), which is defined as the ratio of the wet diameter to the dry diameter. Hygroscopicity controls the size of an aerosol particle and therefore its optical properties in the atmosphere. Hygroscopic growth depends on the dry size of the particle, its chemical composition and the relative humidity in the ambient air (Fitzgerald, 1975; Pilinis et al., 1995). One of the typical problems in aerosol studies is the lack of measurements of aerosol size distributions and optical properties in ambient conditions. The gap between dry measurements and the real humid atmosphere is filled in this study by utilizing a hygroscopic model which calculates the hygroscopic growth of aerosol particles at Mt Zeppelin station, Ny Alesund, Svalbard during 2008.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2013. 702-705 p.
, AIP Conference Proceedings, ISSN 0094-243X ; 1527
Keyword [en]
hygroscopicity, scattering coefficient, HTDMA, nephelometer
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-92092DOI: 10.1063/1.4803367ISI: 000319766400175ISBN: 978-0-7354-1152-4OAI: diva2:637284
19th International Conference on Nucleation and Atmospheric Aerosols (ICNAA), JUN 23-28, 2013, Fort Collins, CO
Available from: 2013-07-17 Created: 2013-07-17 Last updated: 2013-08-07Bibliographically approved

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Rastak, NargesEkman, AnnicaStröm, JohanTunved, PeterRiipinen, Ilona
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Department of Applied Environmental Science (ITM)Department of Meteorology
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