Chemical ozone loss in the Arctic winter 2002/2003 determined with Match
The chemically induced ozone loss inside the Arctic vortex during the winter 2002/03 is currently quantified by an ozonesonde Match campaign. With this technique chemical depletion can be separated from dynamical effects through co-ordinated launches of over 500 ozonesondes from about 25 stations in...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_396198 2023-05-15T14:54:14+02:00 Chemical ozone loss in the Arctic winter 2002/2003 determined with Match Streibel, M. The Match Team 2003 https://gfzpublic.gfz-potsdam.de/pubman/item/item_396198 unknown https://gfzpublic.gfz-potsdam.de/pubman/item/item_396198 Geophysical Research Abstracts, Vol. 5, 08521, 2003 info:eu-repo/semantics/conferenceObject 2003 ftgfzpotsdam 2022-09-14T05:53:44Z The chemically induced ozone loss inside the Arctic vortex during the winter 2002/03 is currently quantified by an ozonesonde Match campaign. With this technique chemical depletion can be separated from dynamical effects through co-ordinated launches of over 500 ozonesondes from about 25 stations in the high and mid latitudes. During campaigns in former winters higher loss rates than can be explained by models have been found in cold Arctic Januaries. To address this issue we focus on conditions with high solar zenith angles and have started the measurements as early as November, which is the earliest start of a Match campaign ever. Temperatures (T_PSC) low enough for the formation of polar stratospheric clouds (PSC) show up already in the second half of November. The area (A_PSC) covered by temperatures lower than T_PSC showed record sizes in the beginning and mid of December with respect to the last 22 winters. Although a minor warming influenced the middle and upper stratosphere from mid December the lower stratosphere remained cold until mid January. Preliminary Match analysis suggests increasing ozone loss rates at 475 K, starting during the first 10 days of December and reaching about 5 ppbv / sunlit hour during the last 10 days of December. We will present the results of the whole campaign period in the vertical range 400 K - 550 K potential temperature. This research is part of the EC funded project "Quantitative Understanding of Ozone losses by Bipolar Investigations" (QUOBI). Conference Object Arctic GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
The chemically induced ozone loss inside the Arctic vortex during the winter 2002/03 is currently quantified by an ozonesonde Match campaign. With this technique chemical depletion can be separated from dynamical effects through co-ordinated launches of over 500 ozonesondes from about 25 stations in the high and mid latitudes. During campaigns in former winters higher loss rates than can be explained by models have been found in cold Arctic Januaries. To address this issue we focus on conditions with high solar zenith angles and have started the measurements as early as November, which is the earliest start of a Match campaign ever. Temperatures (T_PSC) low enough for the formation of polar stratospheric clouds (PSC) show up already in the second half of November. The area (A_PSC) covered by temperatures lower than T_PSC showed record sizes in the beginning and mid of December with respect to the last 22 winters. Although a minor warming influenced the middle and upper stratosphere from mid December the lower stratosphere remained cold until mid January. Preliminary Match analysis suggests increasing ozone loss rates at 475 K, starting during the first 10 days of December and reaching about 5 ppbv / sunlit hour during the last 10 days of December. We will present the results of the whole campaign period in the vertical range 400 K - 550 K potential temperature. This research is part of the EC funded project "Quantitative Understanding of Ozone losses by Bipolar Investigations" (QUOBI). |
format |
Conference Object |
author |
Streibel, M. The Match Team |
spellingShingle |
Streibel, M. The Match Team Chemical ozone loss in the Arctic winter 2002/2003 determined with Match |
author_facet |
Streibel, M. The Match Team |
author_sort |
Streibel, M. |
title |
Chemical ozone loss in the Arctic winter 2002/2003 determined with Match |
title_short |
Chemical ozone loss in the Arctic winter 2002/2003 determined with Match |
title_full |
Chemical ozone loss in the Arctic winter 2002/2003 determined with Match |
title_fullStr |
Chemical ozone loss in the Arctic winter 2002/2003 determined with Match |
title_full_unstemmed |
Chemical ozone loss in the Arctic winter 2002/2003 determined with Match |
title_sort |
chemical ozone loss in the arctic winter 2002/2003 determined with match |
publishDate |
2003 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_396198 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Geophysical Research Abstracts, Vol. 5, 08521, 2003 |
op_relation |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_396198 |
_version_ |
1766325957201756160 |