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On coarse patterns in the atmospheric concentration of ice nucleating particles
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4665627
Author(s) Conen, Franz; Yakutin, Mikhail V.; Puchnin, Alexander N.; Yttri, Karl Espen
Author(s) at UniBasel Conen, Franz
Year 2023
Title On coarse patterns in the atmospheric concentration of ice nucleating particles
Journal Atmospheric research
Volume 285
Pages / Article-Number ARTN 106645
Keywords Ice nucleating particles; Observations; Large-scale pattern
Abstract The atmospheric concentration of ice nucleating particles active at around-10 degrees C (INP-10) is very low. Nevertheless, these particles play a role in the development of cloud systems, so their spatial and temporal patterns merit attention. We collated available datasets on INP-10 to identify such patterns. Among the five low altitude observatories in northern Eurasia, median values throughout May to October were lowest in Scandinavia (4 and 6 m- 3), somewhat higher in central Europe (11 m- 3), substantially higher in the West Siberian Plain (69 m- 3) and highest in the Central Yakutian Lowland (204 m- 3), suggesting that the abundance of INP-10 in northern Eurasia may increase with continentality and from West to East. The range of values at the same ob-servatories was narrower throughout November to April (2 to 27 m- 3). On average, by an order of magnitude smaller values were reported for the four Arctic observatories. Consequently, increasing poleward transport of air masses from the midlatitudes likely raises the concentration of INP-10 in the Arctic, particularly when air masses had surface contact in eastern parts of northern Eurasia.
Publisher Elsevier
ISSN/ISBN 0169-8095
URL https://doi.org/10.1016/j.atmosres.2023.106645
edoc-URL https://edoc.unibas.ch/94493/
Full Text on edoc No
Digital Object Identifier DOI 10.1016/j.atmosres.2023.106645
ISI-Number 000945216600001
Document type (ISI) Article
 
   

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27/05/2024