EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Formation and growth of aerosol particles in boreal forest of Siberia

Anastasiia Demakova1, Olga Garmash1, Ekaterina Ezhova1, Mikhail Arshinov2, Denis Davydov2, Boris Belan2, Steffen Noe3, Kaupo Komsaare4, Marko Vana4, Heikki Junninen4, Federico Bianchi1, Lubna Dada1, Tuukka Petäjä1, Veli-Matti Kerminen1, and Markku Kulmala1
Anastasiia Demakova et al.
  • 1University of Helsinki, Institute for Atmospheric and Earth System Research, Finland (
  • 2V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science (IAO SB RAS), Tomsk, 634055, Russia
  • 3Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Tartu, EE-51006, Estonia
  • 4Institute of Physics, Faculty of Science and Technology, University of Tartu, 50411, Tartu, Estonia

New Particle Formation (NPF) is a process in which a large number of particles is formed in the atmosphere via gas-to-particle conversion. Previous research shows the important role of formation of new particles for atmosphere, clouds and climate (Kerminen, V.-M. et al. 2018).

              There exist measurements from different parts of the world which show that NPF is happening worldwide (Kerminen, V.-M. et al. 2018). Measurements at SMEAR II station in Hyytiälä, Finland (Hari P. and Kulmala M., 2005), show that NPF is a common process in Finland’s boreal forests. However, measurements at Zotto station in Siberia, Russia, show that NPF events are very rare in that area (Wiedensohler A. et al., 2018). Measurements in Siberian boreal forests are sparse. We have conducted new measurements at Fonovaya station near Tomsk (Siberia, Russia) using Neutral cluster Air Ion Spectrometer (NAIS), Particle Size Magnifier (PSM), Differential Mobility Particle Sizer (DMPS) and the Atmospheric Pressure interface Time-Of-Flight mass spectrometer (APi-TOF). Those instruments measure aerosol particle number size distribution (NAIS, DMPS), ion number size distribution (NAIS), size distribution of small particles (PSM) and chemical composition of aerosol particles (APi-TOF). The novelty of this work is that such complex measurements have not been done in Siberia before.

              Here we report the first results of our research on NPF phenomenon in Siberian boreal forest. We present detailed statistics of NPF events, as well as formation rates (J) and growth rates (GR) of aerosol particles. The results from Fonovaya station are compared with those from SMEAR II station and from SMEAR Estonia station in Järvselja, Estonia.





  • [1] Kerminen V.-M. et al. “Atmospheric new particle formation and growth: review of field observations”. In: Environmental Research Letters 10 (2018), p. 103003.
  • [2] Wiedensohler A. et al. “Infrequent new particle formation over the remote boreal forest of Siberia”. In: Atmospheric Environment 200 (2019), pp. 167–169.
  • [3] Dada L. et al. “Long-term analysis of clear-sky new particle formation events and nonevents in Hyytiälä”. In: Atmospheric Chemistry and Physics 10 (2017), pp. 6227–6241.


How to cite: Demakova, A., Garmash, O., Ezhova, E., Arshinov, M., Davydov, D., Belan, B., Noe, S., Komsaare, K., Vana, M., Junninen, H., Bianchi, F., Dada, L., Petäjä, T., Kerminen, V.-M., and Kulmala, M.: Formation and growth of aerosol particles in boreal forest of Siberia, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-14353,, 2021.

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