Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020.
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...
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ftnilu:oai:nilu.brage.unit.no:11250/2779129 2023-07-30T03:56:09+02:00 Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. Overvåking av ozonlaget og naturlig ultrafiolett stråling: Årsrapport 2020. Svendby, Tove Marit Hansen, Georg Heinrich Bäcklund, Are Nilsen, Anne-Cathrine Schulze, Dorothea Johnsen, Bjørn 2021 application/pdf https://hdl.handle.net/11250/2779129 eng eng NILU NILU rapport NILU report;18/2021 Norwegian Environment Agency; M-2091%7C2021 Miljødirektoratet: 17078061 NILU - Norsk institutt for luftforskning: 113008 NILU - Norsk institutt for luftforskning: 113007 urn:isbn:978-82-425-3051-6 urn:issn:2464-3327 https://hdl.handle.net/11250/2779129 cristin:1934793 © NILU – Norwegian Institute for Air Research & Norwegian Environment Agency 43 18/2021 Stratospheric ozone UV radiation Measurements and observations Montreal Protocol Trollobservatoriet Andøyaobservatoriet Zeppelinobservatoriet Research report 2021 ftnilu 2023-07-08T19:54:06Z 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. 2020 was characterized by a strong, cold, and persistent Arctic stratospheric vortex, leading to extensive formation of Polar Stratospheric Clouds (PSCs, mother-of-pearl clouds) and chemical ozone destruction with very low ozone values and high UV levels in the exposed regions in the spring. Denne rapporten presenterer resultatene fra det norske måleprogrammet for totalozon og UV-stråling. Ozonlaget har blitt målt ved tre stasjoner siden 1979: i Oslo/Kjeller, Tromsø/Andøya og Ny-Ålesund. UV-målinger startet i 1995. Resultatene viser at det var en signifikant ozonreduksjon over Norge i perioden 1979 til 1997. Deretter stanset reduksjonen og ozonverdiene stabiliserte seg på et nivå ~2% lavere enn verdiene før 1980. Mest karakteristisk for 2020 var en kraftig og vedvarende arktisk stratosfærisk vortex og mye perlemorskyer (PSC-er) vinteren og våren 2020, noe som førte til sterk ozonnedbryting, svært lave ozonverdier og høye UV-nivåer i de berørte områdene. publishedVersion Report Andøya Arctic Arktis* Ny Ålesund Ny-Ålesund Tromsø NILU – Norwegian Institute for Air Research: NILU Brage Andøya ENVELOPE(13.982,13.982,68.185,68.185) Arctic Norway Ny-Ålesund Tromsø |
institution |
Open Polar |
collection |
NILU – Norwegian Institute for Air Research: NILU Brage |
op_collection_id |
ftnilu |
language |
English |
topic |
Stratospheric ozone UV radiation Measurements and observations Montreal Protocol Trollobservatoriet Andøyaobservatoriet Zeppelinobservatoriet |
spellingShingle |
Stratospheric ozone UV radiation Measurements and observations Montreal Protocol Trollobservatoriet Andøyaobservatoriet Zeppelinobservatoriet Svendby, Tove Marit Hansen, Georg Heinrich Bäcklund, Are Nilsen, Anne-Cathrine Schulze, Dorothea Johnsen, Bjørn Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. |
topic_facet |
Stratospheric ozone UV radiation Measurements and observations Montreal Protocol Trollobservatoriet Andøyaobservatoriet Zeppelinobservatoriet |
description |
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. 2020 was characterized by a strong, cold, and persistent Arctic stratospheric vortex, leading to extensive formation of Polar Stratospheric Clouds (PSCs, mother-of-pearl clouds) and chemical ozone destruction with very low ozone values and high UV levels in the exposed regions in the spring. Denne rapporten presenterer resultatene fra det norske måleprogrammet for totalozon og UV-stråling. Ozonlaget har blitt målt ved tre stasjoner siden 1979: i Oslo/Kjeller, Tromsø/Andøya og Ny-Ålesund. UV-målinger startet i 1995. Resultatene viser at det var en signifikant ozonreduksjon over Norge i perioden 1979 til 1997. Deretter stanset reduksjonen og ozonverdiene stabiliserte seg på et nivå ~2% lavere enn verdiene før 1980. Mest karakteristisk for 2020 var en kraftig og vedvarende arktisk stratosfærisk vortex og mye perlemorskyer (PSC-er) vinteren og våren 2020, noe som førte til sterk ozonnedbryting, svært lave ozonverdier og høye UV-nivåer i de berørte områdene. publishedVersion |
format |
Report |
author |
Svendby, Tove Marit Hansen, Georg Heinrich Bäcklund, Are Nilsen, Anne-Cathrine Schulze, Dorothea Johnsen, Bjørn |
author_facet |
Svendby, Tove Marit Hansen, Georg Heinrich Bäcklund, Are Nilsen, Anne-Cathrine Schulze, Dorothea Johnsen, Bjørn |
author_sort |
Svendby, Tove Marit |
title |
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. |
title_short |
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. |
title_full |
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. |
title_fullStr |
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. |
title_full_unstemmed |
Monitoring of the atmospheric ozone layer and natural ultraviolet radiation. Annual Report 2020. |
title_sort |
monitoring of the atmospheric ozone layer and natural ultraviolet radiation. annual report 2020. |
publisher |
NILU |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2779129 |
long_lat |
ENVELOPE(13.982,13.982,68.185,68.185) |
geographic |
Andøya Arctic Norway Ny-Ålesund Tromsø |
geographic_facet |
Andøya Arctic Norway Ny-Ålesund Tromsø |
genre |
Andøya Arctic Arktis* Ny Ålesund Ny-Ålesund Tromsø |
genre_facet |
Andøya Arctic Arktis* Ny Ålesund Ny-Ålesund Tromsø |
op_source |
43 18/2021 |
op_relation |
NILU rapport NILU report;18/2021 Norwegian Environment Agency; M-2091%7C2021 Miljødirektoratet: 17078061 NILU - Norsk institutt for luftforskning: 113008 NILU - Norsk institutt for luftforskning: 113007 urn:isbn:978-82-425-3051-6 urn:issn:2464-3327 https://hdl.handle.net/11250/2779129 cristin:1934793 |
op_rights |
© NILU – Norwegian Institute for Air Research & Norwegian Environment Agency |
_version_ |
1772811191559651328 |