Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019
In March 2017, measurements of downward global irradiance of ultraviolet (UV) radiation were started with a multichannel GUV-2511 radiometer in Marambio, Antarctica (64.23 ∘ S; 56.62 ∘ W), by the Finnish Meteorological Institute (FMI) in collaboration with the Servicio Meteorológico Nacional (SMN)....
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ftdoajarticles:oai:doaj.org/article:a89e85c12e3e459b883b69d73ccc6c8f 2023-05-15T13:38:04+02:00 Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 M. Aun K. Lakkala R. Sanchez E. Asmi F. Nollas O. Meinander L. Sogacheva V. De Bock A. Arola G. de Leeuw V. Aaltonen D. Bolsée K. Cizkova A. Mangold L. Metelka E. Jakobson T. Svendby D. Gillotay B. Van Opstal 2020-05-01T00:00:00Z https://doi.org/10.5194/acp-20-6037-2020 https://doaj.org/article/a89e85c12e3e459b883b69d73ccc6c8f EN eng Copernicus Publications https://www.atmos-chem-phys.net/20/6037/2020/acp-20-6037-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-6037-2020 1680-7316 1680-7324 https://doaj.org/article/a89e85c12e3e459b883b69d73ccc6c8f Atmospheric Chemistry and Physics, Vol 20, Pp 6037-6054 (2020) Physics QC1-999 Chemistry QD1-999 article 2020 ftdoajarticles https://doi.org/10.5194/acp-20-6037-2020 2022-12-31T12:28:29Z In March 2017, measurements of downward global irradiance of ultraviolet (UV) radiation were started with a multichannel GUV-2511 radiometer in Marambio, Antarctica (64.23 ∘ S; 56.62 ∘ W), by the Finnish Meteorological Institute (FMI) in collaboration with the Servicio Meteorológico Nacional (SMN). These measurements were analysed and the results were compared to previous measurements performed at the same site with the radiometer of the Antarctic NILU-UV network during 2000–2008 and to data from five stations across Antarctica. In 2017/2018 the monthly-average erythemal daily doses from October to January were lower than those averaged over 2000–2008 with differences from 2.3 % to 25.5 %. In 2017/2018 the average daily erythemal dose from September to March was 1.88 kJ m −2 , while in 2018/2019 it was 23 % larger (2.37 kJ m −2 ). Also at several other stations in Antarctica the UV radiation levels in 2017/2018 were below average. The maximum UV indices (UVI) in Marambio were 6.2 and 9.5 in 2017/2018 and 2018/2019, respectively, whereas during years 2000–2008 the maximum was 12. Cloud cover, the strength of the polar vortex and the stratospheric ozone depletion are the primary factors that influence the surface UV radiation levels in Marambio. The lower UV irradiance values in 2017/2018 are explained by the high ozone concentrations in November, February and for a large part of October. The role of cloud cover was clearly seen in December, and to a lesser extent in October and November, when cloud cover qualitatively explains changes which could not be ascribed to changes in total ozone column (TOC). In this study, the roles of aerosols and albedo are of minor influence because the variation of these factors in Marambio was small from one year to the other. The largest variations of UV irradiance occur during spring and early summer when noon solar zenith angle (SZA) is low and the stratospheric ozone concentration is at a minimum (the so-called ozone hole). In 2017/2018, coincident low total ozone column and ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) The Antarctic Atmospheric Chemistry and Physics 20 10 6037 6054 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 M. Aun K. Lakkala R. Sanchez E. Asmi F. Nollas O. Meinander L. Sogacheva V. De Bock A. Arola G. de Leeuw V. Aaltonen D. Bolsée K. Cizkova A. Mangold L. Metelka E. Jakobson T. Svendby D. Gillotay B. Van Opstal Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
In March 2017, measurements of downward global irradiance of ultraviolet (UV) radiation were started with a multichannel GUV-2511 radiometer in Marambio, Antarctica (64.23 ∘ S; 56.62 ∘ W), by the Finnish Meteorological Institute (FMI) in collaboration with the Servicio Meteorológico Nacional (SMN). These measurements were analysed and the results were compared to previous measurements performed at the same site with the radiometer of the Antarctic NILU-UV network during 2000–2008 and to data from five stations across Antarctica. In 2017/2018 the monthly-average erythemal daily doses from October to January were lower than those averaged over 2000–2008 with differences from 2.3 % to 25.5 %. In 2017/2018 the average daily erythemal dose from September to March was 1.88 kJ m −2 , while in 2018/2019 it was 23 % larger (2.37 kJ m −2 ). Also at several other stations in Antarctica the UV radiation levels in 2017/2018 were below average. The maximum UV indices (UVI) in Marambio were 6.2 and 9.5 in 2017/2018 and 2018/2019, respectively, whereas during years 2000–2008 the maximum was 12. Cloud cover, the strength of the polar vortex and the stratospheric ozone depletion are the primary factors that influence the surface UV radiation levels in Marambio. The lower UV irradiance values in 2017/2018 are explained by the high ozone concentrations in November, February and for a large part of October. The role of cloud cover was clearly seen in December, and to a lesser extent in October and November, when cloud cover qualitatively explains changes which could not be ascribed to changes in total ozone column (TOC). In this study, the roles of aerosols and albedo are of minor influence because the variation of these factors in Marambio was small from one year to the other. The largest variations of UV irradiance occur during spring and early summer when noon solar zenith angle (SZA) is low and the stratospheric ozone concentration is at a minimum (the so-called ozone hole). In 2017/2018, coincident low total ozone column and ... |
format |
Article in Journal/Newspaper |
author |
M. Aun K. Lakkala R. Sanchez E. Asmi F. Nollas O. Meinander L. Sogacheva V. De Bock A. Arola G. de Leeuw V. Aaltonen D. Bolsée K. Cizkova A. Mangold L. Metelka E. Jakobson T. Svendby D. Gillotay B. Van Opstal |
author_facet |
M. Aun K. Lakkala R. Sanchez E. Asmi F. Nollas O. Meinander L. Sogacheva V. De Bock A. Arola G. de Leeuw V. Aaltonen D. Bolsée K. Cizkova A. Mangold L. Metelka E. Jakobson T. Svendby D. Gillotay B. Van Opstal |
author_sort |
M. Aun |
title |
Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 |
title_short |
Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 |
title_full |
Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 |
title_fullStr |
Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 |
title_full_unstemmed |
Solar UV radiation measurements in Marambio, Antarctica, during years 2017–2019 |
title_sort |
solar uv radiation measurements in marambio, antarctica, during years 2017–2019 |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/acp-20-6037-2020 https://doaj.org/article/a89e85c12e3e459b883b69d73ccc6c8f |
long_lat |
ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Antarctic Marambio The Antarctic |
geographic_facet |
Antarctic Marambio The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Atmospheric Chemistry and Physics, Vol 20, Pp 6037-6054 (2020) |
op_relation |
https://www.atmos-chem-phys.net/20/6037/2020/acp-20-6037-2020.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-20-6037-2020 1680-7316 1680-7324 https://doaj.org/article/a89e85c12e3e459b883b69d73ccc6c8f |
op_doi |
https://doi.org/10.5194/acp-20-6037-2020 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
20 |
container_issue |
10 |
container_start_page |
6037 |
op_container_end_page |
6054 |
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1766101101219676160 |