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Clues that decaying leaves enrich Arctic air with ice nucleating particles

Conen, Franz and Stopelli, Emiliano and Zimmermann, Lukas. (2016) Clues that decaying leaves enrich Arctic air with ice nucleating particles. Atmospheric environment, 129. pp. 91-94.

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Official URL: http://edoc.unibas.ch/42066/

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Abstract

Decaying leaves from Arctic regions have previously been reported to produce large numbers of ice nucleating particles (IN). Their atmospheric relevance is unclear. Our initial observations at a coastal mountain observatory in northern Norway reveal a tripling in concentrations of IN active at −15 °C (IN-15) in oceanic air after about one day of passage over land (from 1.7 and 4.9 IN-15 m−3, to 9.6 and 12.2 IN-15 m−3). Analysis of leaf litter collected near the observatory supports the earlier report of numerous IN associated with leaf litter on the ground (2 ⋅ 102 IN-15 μg−1 litter particles < 5 μm). Together, both findings suggest that decaying leaves are a strong emission source of IN to the Arctic boundary layer.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Conen, Franz and Zimmermann, Lukas and Stopelli, Emiliano
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Pergamon Press
ISSN:1352-2310
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Sep 2016 08:53
Deposited On:22 Sep 2016 08:53

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