Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica
Surface ozone has been measured since 2004 at the coastal East Antarctic site of Dumont d'Urville (DDU), and since 2007 at the Concordia station located on the high East Antarctic plateau. This paper discusses long-term changes, seasonal and diurnal cycles, as well as inter-annual summer variab...
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ftdoajarticles:oai:doaj.org/article:1f5640eda20642058215e43c022237a0 2023-05-15T13:56:59+02:00 Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica M. Legrand S. Preunkert J. Savarino M. M. Frey A. Kukui D. Helmig B. Jourdain A. E. Jones R. Weller N. Brough H. Gallée 2016-07-01T00:00:00Z https://doi.org/10.5194/acp-16-8053-2016 https://doaj.org/article/1f5640eda20642058215e43c022237a0 EN eng Copernicus Publications https://www.atmos-chem-phys.net/16/8053/2016/acp-16-8053-2016.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-16-8053-2016 1680-7316 1680-7324 https://doaj.org/article/1f5640eda20642058215e43c022237a0 Atmospheric Chemistry and Physics, Vol 16, Pp 8053-8069 (2016) Physics QC1-999 Chemistry QD1-999 article 2016 ftdoajarticles https://doi.org/10.5194/acp-16-8053-2016 2022-12-31T10:47:24Z Surface ozone has been measured since 2004 at the coastal East Antarctic site of Dumont d'Urville (DDU), and since 2007 at the Concordia station located on the high East Antarctic plateau. This paper discusses long-term changes, seasonal and diurnal cycles, as well as inter-annual summer variability observed at these two East Antarctic sites. At Concordia, near-surface ozone data were complemented by balloon soundings and compared to similar measurements done at the South Pole. The DDU record is compared to those obtained at the coastal site of Syowa, also located in East Antarctica, as well as the coastal sites of Neumayer and Halley, both located on the coast of the Weddell Sea in West Antarctica. Surface ozone mixing ratios exhibit very similar seasonal cycles at Concordia and the South Pole. However, in summer the diurnal cycle of ozone is different at the two sites with a drop of ozone in the afternoon at Concordia but not at the South Pole. The vertical distribution of ozone above the snow surface also differs. When present, the ozone-rich layer located near the ground is better mixed and deeper at Concordia (up to 400 m) than at the South Pole during sunlight hours. These differences are related to different solar radiation and wind regimes encountered at these two inland sites. DDU appears to be the coastal site where the impact of the late winter/spring bromine chemistry is the weakest, but where the impact of elevated ozone levels caused by NO x snow emissions from the high Antarctic plateau is the highest. The highest impact of the bromine chemistry is seen at Halley and Neumayer, and to a lesser extent at Syowa. These three sites are only weakly impacted by the NO x chemistry and the net ozone production occurring on the high Antarctic plateau. The differences in late winter/spring are attributed to the abundance of sea ice offshore from the sites, whereas those in summer are related to the topography of East Antarctica that promotes the katabatic flow bringing oxidant-rich inland air masses to the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Sea ice South pole South pole Weddell Sea West Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Weddell Sea East Antarctica Neumayer West Antarctica Weddell South Pole Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) Concordia Station ENVELOPE(123.333,123.333,-75.100,-75.100) Atmospheric Chemistry and Physics 16 12 8053 8069 |
institution |
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. Legrand S. Preunkert J. Savarino M. M. Frey A. Kukui D. Helmig B. Jourdain A. E. Jones R. Weller N. Brough H. Gallée Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Surface ozone has been measured since 2004 at the coastal East Antarctic site of Dumont d'Urville (DDU), and since 2007 at the Concordia station located on the high East Antarctic plateau. This paper discusses long-term changes, seasonal and diurnal cycles, as well as inter-annual summer variability observed at these two East Antarctic sites. At Concordia, near-surface ozone data were complemented by balloon soundings and compared to similar measurements done at the South Pole. The DDU record is compared to those obtained at the coastal site of Syowa, also located in East Antarctica, as well as the coastal sites of Neumayer and Halley, both located on the coast of the Weddell Sea in West Antarctica. Surface ozone mixing ratios exhibit very similar seasonal cycles at Concordia and the South Pole. However, in summer the diurnal cycle of ozone is different at the two sites with a drop of ozone in the afternoon at Concordia but not at the South Pole. The vertical distribution of ozone above the snow surface also differs. When present, the ozone-rich layer located near the ground is better mixed and deeper at Concordia (up to 400 m) than at the South Pole during sunlight hours. These differences are related to different solar radiation and wind regimes encountered at these two inland sites. DDU appears to be the coastal site where the impact of the late winter/spring bromine chemistry is the weakest, but where the impact of elevated ozone levels caused by NO x snow emissions from the high Antarctic plateau is the highest. The highest impact of the bromine chemistry is seen at Halley and Neumayer, and to a lesser extent at Syowa. These three sites are only weakly impacted by the NO x chemistry and the net ozone production occurring on the high Antarctic plateau. The differences in late winter/spring are attributed to the abundance of sea ice offshore from the sites, whereas those in summer are related to the topography of East Antarctica that promotes the katabatic flow bringing oxidant-rich inland air masses to the ... |
format |
Article in Journal/Newspaper |
author |
M. Legrand S. Preunkert J. Savarino M. M. Frey A. Kukui D. Helmig B. Jourdain A. E. Jones R. Weller N. Brough H. Gallée |
author_facet |
M. Legrand S. Preunkert J. Savarino M. M. Frey A. Kukui D. Helmig B. Jourdain A. E. Jones R. Weller N. Brough H. Gallée |
author_sort |
M. Legrand |
title |
Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica |
title_short |
Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica |
title_full |
Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica |
title_fullStr |
Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica |
title_full_unstemmed |
Inter-annual variability of surface ozone at coastal (Dumont d'Urville, 2004–2014) and inland (Concordia, 2007–2014) sites in East Antarctica |
title_sort |
inter-annual variability of surface ozone at coastal (dumont d'urville, 2004–2014) and inland (concordia, 2007–2014) sites in east antarctica |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/acp-16-8053-2016 https://doaj.org/article/1f5640eda20642058215e43c022237a0 |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(140.013,140.013,-66.667,-66.667) ENVELOPE(123.333,123.333,-75.100,-75.100) |
geographic |
Antarctic Weddell Sea East Antarctica Neumayer West Antarctica Weddell South Pole Dumont d'Urville Dumont-d'Urville Concordia Station |
geographic_facet |
Antarctic Weddell Sea East Antarctica Neumayer West Antarctica Weddell South Pole Dumont d'Urville Dumont-d'Urville Concordia Station |
genre |
Antarc* Antarctic Antarctica East Antarctica Sea ice South pole South pole Weddell Sea West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Sea ice South pole South pole Weddell Sea West Antarctica |
op_source |
Atmospheric Chemistry and Physics, Vol 16, Pp 8053-8069 (2016) |
op_relation |
https://www.atmos-chem-phys.net/16/8053/2016/acp-16-8053-2016.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-16-8053-2016 1680-7316 1680-7324 https://doaj.org/article/1f5640eda20642058215e43c022237a0 |
op_doi |
https://doi.org/10.5194/acp-16-8053-2016 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
16 |
container_issue |
12 |
container_start_page |
8053 |
op_container_end_page |
8069 |
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