Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2019.
Publikasjon: Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2019.
Serie: NILU rapport, 11/2020
Utgiver: NILU, Kjeller
This report summarizes the results from the Norwegian monitoring programme on stratospheric ozone and UV radiation measurements. The ozone layer has been measured at three locations since 1979: In Oslo/Kjeller, Tromsø/Andøya and Ny-Ålesund. The UV measurements started in 1995. The results show that there was a significant decrease in stratospheric ozone above Norway between 1979 and 1997. After that, the ozone layer stabilized at a level ~2% below pre-1980 level. 2019 was characterized by low ozone values in April and an “ozone hole” in Southern Norway in December 2019.