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Ice Nucleating Particle Concentrations Increase When Leaves Fall in Autumn
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 3936263
Author(s) Conen, Franz; Yakutin, Mikhail V.; Yttri, Karl Espen; Hüglin, Christoph
Author(s) at UniBasel Conen, Franz
Year 2017
Title Ice Nucleating Particle Concentrations Increase When Leaves Fall in Autumn
Journal Atmosphere
Volume 8
Number 10
Pages / Article-Number 202
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.
Publisher MDPI
ISSN/ISBN 2073-4433
Full Text on edoc No
Digital Object Identifier DOI 10.3390/atmos8100202
ISI-Number WOS:000414847600022
Document type (ISI) Article

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