On coarse patterns in the atmospheric concentration of ice nucleating particles

Conen, Franz and Yakutin, Mikhail V. and Puchnin, Alexander N. and Yttri, Karl Espen. (2023) On coarse patterns in the atmospheric concentration of ice nucleating particles. Atmospheric research, 285. ARTN 106645.

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Official URL: https://edoc.unibas.ch/94493/

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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.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Geowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Conen, Franz
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:15 May 2023 09:25
Deposited On:15 May 2023 09:25

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