News 24.11.2021

Study examined mechanisms forming new aerosol particles in the Arctic region

A study was conducted to better understand the mechanisms involved in the formation of new microparticles in different environments in the Arctic region.
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According to the research, microparticles formed near open water off Ny-Ålesund grew to sizes enabling them to affect the features of clouds. Aerosol particles were significantly smaller in the icy environment of Villum.

The results suggest that the shrinking of the ice cover accompanied by the changes in climate can significantly affect the mechanisms with which microparticles are formed, and the impact that they have on climate in the Arctic region.

More information:

Researcher Ville Vakkari, Finnish Meteorological Institute, tel. 050 4076133,

Beck, L. J., Sarnela, N., Junninen, H., Hoppe, C. J. M., Garmash, O., Bianchi, F., Riva, M., Rose, C., Peräkylä, O., Wimmer, D., Kausiala, O., Jokinen, T., Ahonen, L., Mikkilä, J., Hakala, J., He, X.-C., Kontkanen, J., Wolf, K. K. E., Cappelletti, D., Mazzola, M., Traversi, R., Petroselli, C., Viola, A. P., Vitale, V., Lange, R., Massling, A., Nøjgaard, J. K., Krejci, R., Karlsson, L., Zieger, P., Jang, S., Lee, K., Vakkari, V., Lampilahti, J., Thakur, R. C., Leino, K., Kangasluoma, J., Duplissy, E.-M., Siivola, E., Marbouti, M., Tham, Y. J., Saiz-Lopez, A., Petäjä, T., Ehn, M., Worsnop, D. R., Skov, H., Kulmala, M., Kerminen, V.-M., and Sipilä, M.: Differing Mechanisms of New Particle Formation at Two Arctic Sites, Geophys. Res. Lett., 48, e2020GL091334,, 2021.

Scientific article available here

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