Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020.
Measurements of solar ultraviolet radiation (UVR) performed between January and June 2020 at 10 Arctic and subarctic locations are compared with historical observations. Differences between 2020 and prior years are also assessed with total ozone column and UVR data from satellites. Erythemal (sunbur...
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Online Access: | https://doi.org/10.1029/2020GL090844 https://pubmed.ncbi.nlm.nih.gov/35860747 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285682/ |
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ftpubmed:35860747 2024-09-15T18:38:00+00:00 Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. Bernhard, Germar H Fioletov, Vitali E Grooß, Jens-Uwe Ialongo, Iolanda Johnsen, Bjørn Lakkala, Kaisa Manney, Gloria L Müller, Rolf Svendby, Tove 2020 Dec 28 https://doi.org/10.1029/2020GL090844 https://pubmed.ncbi.nlm.nih.gov/35860747 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285682/ eng eng https://doi.org/10.1029/2020GL090844 https://pubmed.ncbi.nlm.nih.gov/35860747 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285682/ ©2020. The Authors. Geophys Res Lett ISSN:0094-8276 Volume:47 Issue:24 Arctic UV Index anomaly solar UV radiation total ozone column Journal Article 2020 ftpubmed https://doi.org/10.1029/2020GL090844 2024-08-31T16:02:00Z Measurements of solar ultraviolet radiation (UVR) performed between January and June 2020 at 10 Arctic and subarctic locations are compared with historical observations. Differences between 2020 and prior years are also assessed with total ozone column and UVR data from satellites. Erythemal (sunburning) UVR is quantified with the UV Index (UVI) derived from these measurements. UVI data show unprecedently large anomalies, occurring mostly between early March and mid-April 2020. For several days, UVIs observed in 2020 exceeded measurements of previous years by up to 140%. Historical means were surpassed by more than six standard deviations at several locations in the Arctic. In northern Canada, the average UVI for March was about 75% larger than usual. UVIs in April 2020 were elevated on average by about 25% at all sites. However, absolute anomalies remained below 3.0 UVI units because the enhancements occurred during times when the solar elevation was still low. Article in Journal/Newspaper Subarctic PubMed Central (PMC) Geophysical Research Letters 47 24 |
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Open Polar |
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PubMed Central (PMC) |
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ftpubmed |
language |
English |
topic |
Arctic UV Index anomaly solar UV radiation total ozone column |
spellingShingle |
Arctic UV Index anomaly solar UV radiation total ozone column Bernhard, Germar H Fioletov, Vitali E Grooß, Jens-Uwe Ialongo, Iolanda Johnsen, Bjørn Lakkala, Kaisa Manney, Gloria L Müller, Rolf Svendby, Tove Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. |
topic_facet |
Arctic UV Index anomaly solar UV radiation total ozone column |
description |
Measurements of solar ultraviolet radiation (UVR) performed between January and June 2020 at 10 Arctic and subarctic locations are compared with historical observations. Differences between 2020 and prior years are also assessed with total ozone column and UVR data from satellites. Erythemal (sunburning) UVR is quantified with the UV Index (UVI) derived from these measurements. UVI data show unprecedently large anomalies, occurring mostly between early March and mid-April 2020. For several days, UVIs observed in 2020 exceeded measurements of previous years by up to 140%. Historical means were surpassed by more than six standard deviations at several locations in the Arctic. In northern Canada, the average UVI for March was about 75% larger than usual. UVIs in April 2020 were elevated on average by about 25% at all sites. However, absolute anomalies remained below 3.0 UVI units because the enhancements occurred during times when the solar elevation was still low. |
format |
Article in Journal/Newspaper |
author |
Bernhard, Germar H Fioletov, Vitali E Grooß, Jens-Uwe Ialongo, Iolanda Johnsen, Bjørn Lakkala, Kaisa Manney, Gloria L Müller, Rolf Svendby, Tove |
author_facet |
Bernhard, Germar H Fioletov, Vitali E Grooß, Jens-Uwe Ialongo, Iolanda Johnsen, Bjørn Lakkala, Kaisa Manney, Gloria L Müller, Rolf Svendby, Tove |
author_sort |
Bernhard, Germar H |
title |
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. |
title_short |
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. |
title_full |
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. |
title_fullStr |
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. |
title_full_unstemmed |
Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020. |
title_sort |
record-breaking increases in arctic solar ultraviolet radiation caused by exceptionally large ozone depletion in 2020. |
publishDate |
2020 |
url |
https://doi.org/10.1029/2020GL090844 https://pubmed.ncbi.nlm.nih.gov/35860747 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285682/ |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Geophys Res Lett ISSN:0094-8276 Volume:47 Issue:24 |
op_relation |
https://doi.org/10.1029/2020GL090844 https://pubmed.ncbi.nlm.nih.gov/35860747 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285682/ |
op_rights |
©2020. The Authors. |
op_doi |
https://doi.org/10.1029/2020GL090844 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
24 |
_version_ |
1810482335341084672 |