A review of surface ozone in the polar regions
Surface ozone records from ten polar research stations were investigated for the dependencies of ozone on radiative processes, snow-photochemisty, and synoptic and stratospheric transport. A total of 146 annual data records for the Arctic sites Barrow, Alaska; Summit, Greenland; Alert, Canada; Zeppe...
Published in: | Atmospheric Environment |
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Language: | English |
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Elsevier Ltd.
2007
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-192 https://doi.org/10.1016/j.atmosenv.2006.09.053 |
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ftncar:oai:drupal-site.org:articles_6864 2023-10-01T03:52:13+02:00 A review of surface ozone in the polar regions Helmig, Detlev (author) Oltmans, Samuel (author) Carlson, Daniel (author) Lamarque, Jean-François (author) Jones, Anna (author) Labuschagne, Casper (author) Anlauf, Kurt (author) Hayden, Katherine (author) 2007-08-01 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-192 https://doi.org/10.1016/j.atmosenv.2006.09.053 en eng Elsevier Ltd. Atmospheric Environment http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-192 doi:10.1016/j.atmosenv.2006.09.053 ark:/85065/d7hd7vwk Copyright 2007 Elsevier. Ozone photochemistry Diurnal ozone cycles Snowpack–atmosphere interactions Text article 2007 ftncar https://doi.org/10.1016/j.atmosenv.2006.09.053 2023-09-04T18:22:06Z Surface ozone records from ten polar research stations were investigated for the dependencies of ozone on radiative processes, snow-photochemisty, and synoptic and stratospheric transport. A total of 146 annual data records for the Arctic sites Barrow, Alaska; Summit, Greenland; Alert, Canada; Zeppelinfjellet, Norway; and the Antarctic stations Halley, McMurdo, Neumayer, Sanae, Syowa, and South Pole were analyzed. Mean ozone at the Northern Hemisphere (NH) stations (excluding Summit) is ∼5 ppbv higher than in Antarctica. Statistical analysis yielded best estimates for the projected year 2005 median annual ozone mixing ratios, which for the Arctic stations were 33.5 ppbv at Alert, 28.6 ppbv at Barrow, 46.3 ppbv ppb at Summit and 33.7 ppbv at Zeppelinfjellet. For the Antarctic stations the corresponding ozone mixing ratios were 21.6 ppbv at Halley, 27.0 ppbv at McMurdo, 24.9 ppbv at Neumayer, 27.2 ppbv at Sanae, 29.4 ppbv at South Pole, and 25.8 ppbv at Syowa. At both Summit (3212 m asl) and South Pole (2830 m asl), annual mean ozone is higher than at the lower elevation and coastal stations. A trend analysis revealed that all sites in recent years have experienced low to moderate increases in surface ozone ranging from 0.02 to 0.26 ppbv yr⁻¹, albeit none of these changes were found to be statistically significant trends. A seasonal trend analysis showed above-average increases in ozone during the spring and early summer periods for both Arctic (Alert, Zeppelinfjellet) and Antarctic (McMurdo, Neumayer, South Pole) sites. In contrast, at Barrow, springtime ozone has been declining. All coastal stations experience springtime episodes with rapid depletion of ozone in the boundary layer, attributable to photochemically catalyzed ozone depletion from halogen chemistry. This effect is most obvious at Barrow, followed by Alert. Springtime depletion episodes are less pronounced at Antarctic stations. At South Pole, during the Antarctic spring and summer, photochemical ozone production yields frequent episodes with ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Barrow Greenland South pole South pole Alaska OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic Arctic Canada Greenland Neumayer Norway SANAE ENVELOPE(-2.850,-2.850,-71.667,-71.667) South Pole The Antarctic Zeppelinfjellet ENVELOPE(11.937,11.937,78.906,78.906) Atmospheric Environment 41 24 5138 5161 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
Ozone photochemistry Diurnal ozone cycles Snowpack–atmosphere interactions |
spellingShingle |
Ozone photochemistry Diurnal ozone cycles Snowpack–atmosphere interactions A review of surface ozone in the polar regions |
topic_facet |
Ozone photochemistry Diurnal ozone cycles Snowpack–atmosphere interactions |
description |
Surface ozone records from ten polar research stations were investigated for the dependencies of ozone on radiative processes, snow-photochemisty, and synoptic and stratospheric transport. A total of 146 annual data records for the Arctic sites Barrow, Alaska; Summit, Greenland; Alert, Canada; Zeppelinfjellet, Norway; and the Antarctic stations Halley, McMurdo, Neumayer, Sanae, Syowa, and South Pole were analyzed. Mean ozone at the Northern Hemisphere (NH) stations (excluding Summit) is ∼5 ppbv higher than in Antarctica. Statistical analysis yielded best estimates for the projected year 2005 median annual ozone mixing ratios, which for the Arctic stations were 33.5 ppbv at Alert, 28.6 ppbv at Barrow, 46.3 ppbv ppb at Summit and 33.7 ppbv at Zeppelinfjellet. For the Antarctic stations the corresponding ozone mixing ratios were 21.6 ppbv at Halley, 27.0 ppbv at McMurdo, 24.9 ppbv at Neumayer, 27.2 ppbv at Sanae, 29.4 ppbv at South Pole, and 25.8 ppbv at Syowa. At both Summit (3212 m asl) and South Pole (2830 m asl), annual mean ozone is higher than at the lower elevation and coastal stations. A trend analysis revealed that all sites in recent years have experienced low to moderate increases in surface ozone ranging from 0.02 to 0.26 ppbv yr⁻¹, albeit none of these changes were found to be statistically significant trends. A seasonal trend analysis showed above-average increases in ozone during the spring and early summer periods for both Arctic (Alert, Zeppelinfjellet) and Antarctic (McMurdo, Neumayer, South Pole) sites. In contrast, at Barrow, springtime ozone has been declining. All coastal stations experience springtime episodes with rapid depletion of ozone in the boundary layer, attributable to photochemically catalyzed ozone depletion from halogen chemistry. This effect is most obvious at Barrow, followed by Alert. Springtime depletion episodes are less pronounced at Antarctic stations. At South Pole, during the Antarctic spring and summer, photochemical ozone production yields frequent episodes with ... |
author2 |
Helmig, Detlev (author) Oltmans, Samuel (author) Carlson, Daniel (author) Lamarque, Jean-François (author) Jones, Anna (author) Labuschagne, Casper (author) Anlauf, Kurt (author) Hayden, Katherine (author) |
format |
Article in Journal/Newspaper |
title |
A review of surface ozone in the polar regions |
title_short |
A review of surface ozone in the polar regions |
title_full |
A review of surface ozone in the polar regions |
title_fullStr |
A review of surface ozone in the polar regions |
title_full_unstemmed |
A review of surface ozone in the polar regions |
title_sort |
review of surface ozone in the polar regions |
publisher |
Elsevier Ltd. |
publishDate |
2007 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-192 https://doi.org/10.1016/j.atmosenv.2006.09.053 |
long_lat |
ENVELOPE(-2.850,-2.850,-71.667,-71.667) ENVELOPE(11.937,11.937,78.906,78.906) |
geographic |
Antarctic Arctic Canada Greenland Neumayer Norway SANAE South Pole The Antarctic Zeppelinfjellet |
geographic_facet |
Antarctic Arctic Canada Greenland Neumayer Norway SANAE South Pole The Antarctic Zeppelinfjellet |
genre |
Antarc* Antarctic Antarctica Arctic Barrow Greenland South pole South pole Alaska |
genre_facet |
Antarc* Antarctic Antarctica Arctic Barrow Greenland South pole South pole Alaska |
op_relation |
Atmospheric Environment http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-004-192 doi:10.1016/j.atmosenv.2006.09.053 ark:/85065/d7hd7vwk |
op_rights |
Copyright 2007 Elsevier. |
op_doi |
https://doi.org/10.1016/j.atmosenv.2006.09.053 |
container_title |
Atmospheric Environment |
container_volume |
41 |
container_issue |
24 |
container_start_page |
5138 |
op_container_end_page |
5161 |
_version_ |
1778517977289719808 |