Publications and Science News

Ozone impact from solar energetic particles cools the polar stratosphere

A research study published in Nature Communications shows that the ozone depletion caused by solar energetic particles leads to stratospheric cooling in the polar regions. Resolving the inconsistency seen in previous studies, the current work clearly establishes a link between ozone and temperature changes. It also highlights the urgent need for an improved representation of […]

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New satellite dataset provides water vapour isotope observations with daily global coverage even above low clouds

New satellite dataset gives information about water vapour isotopes which are hard to measure. This gives researchers new ways to investigate the hydrological cycle or improve climate models. Naturally occurring stable water isotopes can be used to track the movement of water. The measurement of these isotopes is difficult but promises new insights in the […]

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The space weather forecasts will help to launch satellites at the right time

Up to 40 satellites are about to descent back to the Earth right after the launch due to a sudden increase in air resistance. The reason for this is a space weather storm, which was also followed by the Finnish Meteorological Institute’s space weather service. New Finnish observations may help to refine forecasts in the […]

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More elaborate study of the Arctic carbon cycle demands development of models and observations

Thawing of the Arctic permafrost threatens to release unknown amounts of carbon emissions to the atmosphere. An international research group, together with FMI, calls for more extensive collaborative research to improve measurements and develop modeling for better climate predictions. Their recently published article, co-authored by FMI Research Professor Johanna Tamminen, provides an extensive review of […]

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Improved estimation of snow mass by using spatially and temporally varying snow density

A new study found that the state-of-the-art GlobSnow v3.0 snow mass estimates can be further improved by using dynamic snow densities. Information about snow water equivalent (SWE) is needed in many applications, including forecasting freshwater availability and flooding. Historical time series of SWE can also be used in climate model evaluation. A new study evaluated […]

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Satellite-based flood maps of the Finnish Flood Centre provide up-to-date information on flood extent

Satellite images can be utilized for near real-time mapping of floods in wide areas cost efficiently. New research shows that Finnish Flood Centre’s Flood Detection Algorithm works better in the Finnish environment when compared with other available satellite-based products. Methods for satellite-based flood detection have been developed in the Finnish Meteorological Institute for almost 10 […]

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New GlobSnow dataset provides gridded daily Northern Hemisphere snow mass

A recent publication in Scientific Data provides a detailed description of the product and the GlobSnow methodology. Access the paper full-text version here: The GlobSnow v3.0 dataset provides a state-of-the-art estimation of the hemispheric snow mass containing daily, monthly, and monthly bias-corrected snow water equivalent (SWE) at the nominal resolution of 25 km x […]

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New wind data for Mars

Researchers at FMI have decoded images of scattered spacecraft parachutes and heat shields to provide new wind data for Mars. To do this they used simulations of spacecraft landings in conjunction with a machine learning algorithm to infer the winds responsible for scattering the hardware. The work has provided wind data in a region of […]

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Measurement campaign studies the effect of solar UV radiation on airborne transmission of viruses in outdoor air

Reasons for seasonality of virus epidemics are still unknown. In Sodankylä, a campaign aims to study the role of solar ultraviolet radiation in virus infectivity. The campaign aims to provide new information about virus transmission in outdoor air and to find explanations to the seasonality of virus epidemics: Why virus pandemics seem to be less […]

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Emissions from Eastern Russian oil fields detected from space

Nitrogen oxide (NOx) and methane (CH4) emissions over Tas-Yuryakh and Talakan oil fields in Sakha Republic (Eastern Siberia, Russia) have been estimated using multi-satellite observations. The emissions are linked to oil production and associated gas flaring activities. Crude oil production activities and associated gas flaring are responsible for significant air polluting and greenhouse gas (GHG) […]

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