Publications and Science News

Snow is more important than storms in controlling thermodynamic sea ice growth in the Arctic

Sea ice growth is mainly controlled by the amount of snow on sea ice. This was found out in a study investigating the role of snow and storms in slowing down the Arctic sea ice growth in winter. In recent decades Arctic sea ice has been thinning, and it has become more vulnerable to changes […]

Posted in News, Science News | Leave a comment

New seasonal forecast service to help with estimating conditions for harvesting timber

Harvesting machines weight about 20 tons and require good bearing capacity of the terrain to avoid the machines from getting stuck and to keep from damaging the topsoil of the forest floor. Up to 80% Finish forest land have been classified for Finnish Foreste center based on analysing airborne laser scanning data for what sort […]

Posted in News, Science News | Leave a comment

Snow mass of the Planet revealed

FMI-SPACE researchers, together with Environment and Climate Change Canada (ECCC), made a major step in climate research by giving the first reliable estimate on the Northern Hemisphere snow mass. The article “Patterns and trends of Northern Hemisphere snow mass from 1980 to 2018” was published in the most highly ranked scientific journal Nature 21 May […]

Posted in News, Science News | Leave a comment

Data record on the reflectance of snow and snow-free ground published

The measurement data collected by FMI-SPACE and the Finnish Environmental Institute (SYKE) on the reflectance of snow and snow-free ground in the northern coniferous forest zone is now available to the public in Zenodo-database. The measurements represent a typical polar-orbiting satellite observation event in the spring season. The measurement data concerns factors that affect the […]

Posted in News, Science News | Leave a comment

Major review published on the feasibility of EO in boreal and arctic regions

FMI-SPACE participated a major review article that summarizes the feasibility of Earth Observation to analyze the changes in boreal and arctic regions of the Planet, including the processes of atmosphere, hydrosphere and terrestrial areas. The investigation analyses what are the drivers of arctic-boreal system components, and how Earth Observation can be utilized to monitor these […]

Posted in News, Science News | Leave a comment

Transformation of space operations is a megatrend that influences the future and offers business opportunities

A Space Situation Centre should be set up in Finland to ensure that the public authorities have the information they need for making decisions. To make full use of space operations, Finland should have a permanent and consistent national budget for these. These are the conclusions of the final report of a project that studied […]

Posted in News, Science News | Tagged , , , | Leave a comment

Ice crystals in snow look different from different directions – now this can be modelled

Based on measurements carried out at the Finnish Meteorological Institute in Sodankylä, a model has been developed that describes the development of the structures of ice crystals in snow. For example, the shape of the crystals and the microstructure of snow affect the flow of radiation within the snow. Knowledge of the structure and development […]

Posted in Science News | Leave a comment

New generation satellite observations provide improved information on air pollution in Helsinki

A new research led by researchers at the Space and Earth Observation Centre (FMI-SPACE) shows how satellite-based observations provide new accurate information for monitoring air pollution (in particular nitrogen dioxide, NO2) in the Helsinki region. The results show how commuter traffic strongly affects air quality in the capital region: NO2 concentrations are smaller during the […]

Posted in Science News | Leave a comment

Thesis: Understanding of snow microstructure benefits the interpretation of remote sensing observations

Leena Leppänen defended her doctoral thesis dealing with the characterization of snow microstructure in order to improve snow water equivalent retrieval from microwave remote sensing observations. Leena Leppänen found that definitions, measurements methods and physical snow models for snow microstructure need improving. Improved microwave emission models would benefit snow water equivalent retrievals from remote sensing […]

Posted in Arctic Space Centre and Sodankylä Space Campus, Science News | Leave a comment

Microwave transmissivity of frozen trees has a significant effect to interpreting satellite observations

Space and Earth Observation Centre (FMI-SPACE) scientists Leena Leppänen, Juho Vehviläinen, Anna Kontu, Juha Lemmetyinen and Jouni Pulliainen together with Richard Kelly and Qinghuan Li from the University of Waterloo, Canada, found how to enable the improvement of interpreting microwave satellite observations. Microwave transmissivity of frozen trees changes with temperature hampering the interpretation. The results […]

Posted in News, Science News | Leave a comment

Theme by Anders Norén