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Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual report 2016.

Svendby, T.M.; Hansen, G.H.; Stebel, K.; Bäcklund, A.; Dahlback, A.

Publication details

Series: NILU report 31/2017

Publisher: NILU

Year: 2017

ISBN: 978-82-425-2904-6

File: NILU report 31/2017 (pdf)

Summary: 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, 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 the 1979-1989 average. There are large inter-annual variations and in 2016 there were relatively low values at all the three Norwegian stations, especially in February/March.