Large loss of total ozone during the Arctic winter of 1999/2000
Three-dimensional model calculations are used together with total ozone observations from the Global Ozone Monitoring Experiment (GOME) and ozone sonde measurements at Ny-Ålesund, Spitsbergen to quantify the chemical ozone loss inside the Arctic polar vortex in winter 1999/2000. GOME shows March 200...
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ftawi:oai:epic.awi.de:3848 2024-09-15T17:51:20+00:00 Large loss of total ozone during the Arctic winter of 1999/2000 Sinnhuber, B.-M. Chipperfield, M. P. Davies, J. Burrows, J. P. Eichmann, K.-U. Weber, M. Guirlet, M. Cahill, G. A. Lee, A. M. Pyle, J. A. von der Gathen, Peter 2000 https://epic.awi.de/id/eprint/3848/ https://hdl.handle.net/10013/epic.14425 unknown Sinnhuber, B. M. , Chipperfield, M. P. , Davies, J. , Burrows, J. P. , Eichmann, K. U. , Weber, M. , Guirlet, M. , Cahill, G. A. , Lee, A. M. , Pyle, J. A. and von der Gathen, P. orcid:0000-0001-7409-1556 (2000) Large loss of total ozone during the Arctic winter of 1999/2000 , Geophysical Research Letters, 27, No. 21, pp. 3473-3476 . hdl:10013/epic.14425 EPIC3Geophysical Research Letters, 27, No. 21, pp. 3473-3476, ISSN: 0094-8276 Article isiRev 2000 ftawi 2024-06-24T03:54:11Z Three-dimensional model calculations are used together with total ozone observations from the Global Ozone Monitoring Experiment (GOME) and ozone sonde measurements at Ny-Ålesund, Spitsbergen to quantify the chemical ozone loss inside the Arctic polar vortex in winter 1999/2000. GOME shows March 2000 mean Arctic total ozone values of 365 DU, about 100 DU less than the 1980-1989 mean from TOMS data, well reproduced by the model calculations. A comparison of the modeled ozone with a passive ozone tracer and ozone sonde observations at Ny-Ålesund shows that by the end of March 2000 about 2.5 ppmv of ozone are chemically depleted in the lower stratosphere, corresponding to more than 70% ozone loss. At the same time, the inferred loss in total ozone inside or at the edge of the polar vortex is between 90 and 140 DU. The large ongoing loss during March 2000 is likely to be due to widespread denitrification, which maintains high chlorine activation during this period. Article in Journal/Newspaper Arctic Ny Ålesund Ny-Ålesund Spitsbergen Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Three-dimensional model calculations are used together with total ozone observations from the Global Ozone Monitoring Experiment (GOME) and ozone sonde measurements at Ny-Ålesund, Spitsbergen to quantify the chemical ozone loss inside the Arctic polar vortex in winter 1999/2000. GOME shows March 2000 mean Arctic total ozone values of 365 DU, about 100 DU less than the 1980-1989 mean from TOMS data, well reproduced by the model calculations. A comparison of the modeled ozone with a passive ozone tracer and ozone sonde observations at Ny-Ålesund shows that by the end of March 2000 about 2.5 ppmv of ozone are chemically depleted in the lower stratosphere, corresponding to more than 70% ozone loss. At the same time, the inferred loss in total ozone inside or at the edge of the polar vortex is between 90 and 140 DU. The large ongoing loss during March 2000 is likely to be due to widespread denitrification, which maintains high chlorine activation during this period. |
format |
Article in Journal/Newspaper |
author |
Sinnhuber, B.-M. Chipperfield, M. P. Davies, J. Burrows, J. P. Eichmann, K.-U. Weber, M. Guirlet, M. Cahill, G. A. Lee, A. M. Pyle, J. A. von der Gathen, Peter |
spellingShingle |
Sinnhuber, B.-M. Chipperfield, M. P. Davies, J. Burrows, J. P. Eichmann, K.-U. Weber, M. Guirlet, M. Cahill, G. A. Lee, A. M. Pyle, J. A. von der Gathen, Peter Large loss of total ozone during the Arctic winter of 1999/2000 |
author_facet |
Sinnhuber, B.-M. Chipperfield, M. P. Davies, J. Burrows, J. P. Eichmann, K.-U. Weber, M. Guirlet, M. Cahill, G. A. Lee, A. M. Pyle, J. A. von der Gathen, Peter |
author_sort |
Sinnhuber, B.-M. |
title |
Large loss of total ozone during the Arctic winter of 1999/2000 |
title_short |
Large loss of total ozone during the Arctic winter of 1999/2000 |
title_full |
Large loss of total ozone during the Arctic winter of 1999/2000 |
title_fullStr |
Large loss of total ozone during the Arctic winter of 1999/2000 |
title_full_unstemmed |
Large loss of total ozone during the Arctic winter of 1999/2000 |
title_sort |
large loss of total ozone during the arctic winter of 1999/2000 |
publishDate |
2000 |
url |
https://epic.awi.de/id/eprint/3848/ https://hdl.handle.net/10013/epic.14425 |
genre |
Arctic Ny Ålesund Ny-Ålesund Spitsbergen |
genre_facet |
Arctic Ny Ålesund Ny-Ålesund Spitsbergen |
op_source |
EPIC3Geophysical Research Letters, 27, No. 21, pp. 3473-3476, ISSN: 0094-8276 |
op_relation |
Sinnhuber, B. M. , Chipperfield, M. P. , Davies, J. , Burrows, J. P. , Eichmann, K. U. , Weber, M. , Guirlet, M. , Cahill, G. A. , Lee, A. M. , Pyle, J. A. and von der Gathen, P. orcid:0000-0001-7409-1556 (2000) Large loss of total ozone during the Arctic winter of 1999/2000 , Geophysical Research Letters, 27, No. 21, pp. 3473-3476 . hdl:10013/epic.14425 |
_version_ |
1810293209254854656 |