Science news archive

« Back

Photographs reveal what the sky looks like in UV

Photographs reveal what the sky looks like in UV

Researchers at the Radiation and Nuclear Safety Authority and the Finnish Meteorological Institute have been able to demonstrate with the help of photographs what the sky looks like in the ultraviolet.

"The photographs presented here make visible to us what we cannot normally see. Rayleigh scattering is typically presented rather theoretically in, for example, text books. I find Lasse's UV photographs eye-opening. They are a very helpful tool for understanding and demonstrating the connection between theory and how scattered sunlight behave in reality. They can also be used to study other phenomena that have to do with UV radiation", says research professor Anders Lindfors.

More information:

Research professor (tenure track) Anders Lindfors,  FMI, tel. +358 50 433 1055

Researcher  Lasse Ylianttila, STUK, tel. +358 9 7598 8455

Tutkimukseen liittyvä artikkeli ilmestyi Bulletin of American Meteorological Soceity (BAMS) –lehden syyskuun numerossa 2016.

Lindfors ja Ylianttila (2016): Visualizing Rayleigh Scattering through UV Photography, BAMS, 1561—1564



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.