The Finnish Meteorological Institute collected a uniquely comprehensive set of snow data based on field measurements performed during the winter of 2011–2012. Knowledge of this variation helps estimate the amount of snow more accurately and thus helps, for example, estimate the volume of floods in spring.
The variation of snow depth, snow density and snow water equivalent in the tundra and northern boreal forests were studied using the field measurements collected during the winter. The snow water equivalent describes the volume of water when the snow melts.
The measurements were made form an aeroplane using a radar instrument similar to the ones used in satellites. SnowSAR-2, the flight campaign of the European Space Agency, was aimed at improving the technique used in measuring the snow water equivalent.
The Finnish Meteorological Institute is a leading expert in meteorology, air quality, climate change, earth observation, marine and arctic research areas. FMI is in a unique position to study various themes of climate change in the Northern context.
High-quality observational data and 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.