Effects of long range transported wildfire plume on cloud microphysics in Northern Europe and the high Arctic ...

• Main Authors: Virtanen, Annele, Kommula, Snehitha, Gramlich, Yvette, Mielonen, Tero, Buchholz, Angela, Koike, Makoto, Yoon, Young Jun, Heslin- Rees, Dominic, Zieger, Paul, Krejci, Radovan, Mohr, Claudia, Romakkaniemi, Sami
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Arctic; Svalbard; Climate change
• Online Access: https://dx.doi.org/10.57757/iugg23-3995; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019822

<!--!introduction!--> Extreme weather conditions and widespread drying induced by climate change will increase the risk and severity of wildfires increasing the importance of the wildfire emissions in the climate system. Aerosol emissions from the wildfires may affect the cloud formation by increasing the concentration of cloud condensation nuclei (CCN) and by affecting the composition and hygroscopicity (k) of the aerosol population. In this study, we investigate the effect of long range transported (originated from South-Eastern Europe) wildfire plume on cloud microphysics at two sites: Puijo SMEAR IV in Eastern Finland, and Zeppelin Observatory in Svalbard, high Arctic. We use both in-situ and satellite observations to investigate the changes in aerosol population, cloud activation and cloud properties. During the wildfire plume period, the aerosol hygroscopicity slightly increased compared to clean periods at Puijo station, but decreased at Zeppelin. A substantial increase in aerosol number ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...