Research on three branches of activity

High-quality research is utilized to develop services to benefit our everyday life. Visible examples are improvement of weather forecasts, development of new expert and warning services as well as applications of the newest research results.

The meteorological and marine research programme does basic and applied research on meteorology, atmospheric science and physical oceanography. Research subjects include forecast models for different time frames, scientific applications and remote sensing observations linked to the research area as well as the effects of climate change and how to adapt to them.
The climate research programme does basic and applied research on the different components of the climate system. The research subjects are especially past, current and future climate as well as the composition of the atmosphere and its effects on climate change and air quality. Some of the employees of the programme work at the office in Kuopio.
The space and earth observation centre is responsible for the research of the polar regions and near space as well as developing technology related to the activity. The research subjects are especially arctic research and remote sensing, new observation methods and space. The Arctic Space Centre and Sodankylä office are a part of the Space and earth observation centre.

Science news

FMI's researchers publish about 300 peer-reviewed articles annually.

In Science News we publish current information about FMI's studies on the weather, the sea and the climate.

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Traffic is a major source of atmospheric nanocluster aerosol

Traffic is a major source of atmospheric nanocluster aerosol

Measurements of NCA were conducted in both laboratory and in ambient environment. For instance, in a semiurban roadside environment, the NCA represented 20–54% of the total particle number concentration in ambient air.

The observed NCA concentrations varied significantly depending on the traffic rate and wind direction. Interestingly, these emissions were not associated with all vehicles.

These NCA emissions directly affect particle concentrations and human exposure to nanosized aerosol in urban areas, and potentially may act as nanosized condensation nuclei for the condensation of atmospheric low-volatile organic compounds. New results can be further utilized in FMI air quality and climate models.says research scientist Hilkka Timonen.

Article about NCA can be found from PNAS: Research was done in tight co-operation between Tampere University of Technology, Finnish Meteorological institute, Helsinki Region Environmental Services Authority, Metropolia university of applied sciences and  ja Turku university of applied sciences. Research was funded by Tekes, Academy of Finland, Cleen Oy, Dinex Ecocat Oy, Neste Oyj, AGCO Power, Ab Nanol Technologies Oy and Strategic Research Council.

For more information:

Senior Research Scientist Hilkka Timonen,

Reference: Rönkkö, T., Kuuluvainen, H., Karjalainen, P., Keskinen, J., Hillamo, R., Niemi, J. V., Pirjola, L., Timonen, H. J., Saarikoski, S., Saukko, E., Järvinen, A., Silvennoinen, H., Rostedt, A., Olin, M., Yli-Ojanperä, J., Nousiainen, P., Kousa, A., and Dal Maso, M.: Traffic is a major source of atmospheric nanocluster aerosol, Proceedings of the National Academy of Sciences, 201700830, 10.1073/pnas.1700830114, 2017

Science news archive

Contact information

Scientific Director Ari Laaksonen
tel. +358 539 5530

Meteorological and Marine Research Programme
Director Sami Niemelä
tel. +358 29 539 4172

Climate Research Programme
Director  Hannele Korhonen
tel. +358  29 539 2135

Space and Earth Observation Centre
Director Jouni Pulliainen
tel. +358 29 539 4701

FMI publications

FMI´s own publications series are:

  • FMI Contributions: high-quality peer-reviewed research results, mainly doctoral dissertations
  • FMI Reports: current research results mainly for customers and other stakeholders

All publications from 2016 onwards can be found on Helda.