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Ice Nucleating Particle Concentrations Increase When Leaves Fall in Autumn

Conen, Franz and Yakutin, Mikhail V. and Yttri, Karl Espen and Hüglin, Christoph. (2017) Ice Nucleating Particle Concentrations Increase When Leaves Fall in Autumn. Atmosphere, 8 (10). p. 202.

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Official URL: http://edoc.unibas.ch/56361/

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Abstract

Ice nucleating particles active at −8 °C or warmer (INP−8) are produced by plants and by microorganisms living from and on them. Laboratory studies have shown that large numbers of INP−8 are produced by decaying leaves. At three widely dispersed locations in Northwestern Eurasia, we saw, from an analysis of PM10 filter samples, that seasonal median concentrations of INP−8 in the boundary layer doubled from summer to autumn. Concentrations of INP−8 increased in autumn soon after the normalized differential vegetation index had started to decrease. Whether the large-scale phenological event of leaf senescence and shedding in autumn has an impact on ice formation in clouds is a justified question.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Conen, Franz
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:MDPI
e-ISSN:2073-4433
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:12 Feb 2019 16:54
Deposited On:25 Oct 2017 09:36

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