A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter
We present an analysis of in situ measurements of ClO, BrO, O-3, and long-lived tracers obtained on a balloon flight in the Arctic polar vortex launched from Kiruna, Sweden, 68 degrees N, on February 3, 1995. Using the method of tracer correlations, we deduce that the air masses sampled at an altitu...
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ftfzjuelichnvdb:oai:juser.fz-juelich.de:39899 2023-05-15T14:58:45+02:00 A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter Woyke, T. Müller, R. Stroh, F. MacKenna, A. R. Engel, A. Margitan, J. J. Rex, M. Carslaw, K. S. DE 1999 https://juser.fz-juelich.de/record/39899 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-39899%22 eng eng Union info:eu-repo/semantics/altIdentifier/wos/WOS:000082128500019 info:eu-repo/semantics/altIdentifier/issn/0022-1406 info:eu-repo/semantics/altIdentifier/doi/10.1029/1999JD900287 info:eu-repo/semantics/altIdentifier/hdl/2128/20558 info:eu-repo/semantics/altIdentifier/issn/0148-0227 https://juser.fz-juelich.de/record/39899 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-39899%22 info:eu-repo/semantics/openAccess Journal of geophysical research / Atmospheres 104, 18755 - 18768 (1999). doi:10.1029/1999JD900287 info:eu-repo/classification/ddc/550 J info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1999 ftfzjuelichnvdb https://doi.org/10.1029/1999JD900287 2022-07-14T10:51:02Z We present an analysis of in situ measurements of ClO, BrO, O-3, and long-lived tracers obtained on a balloon flight in the Arctic polar vortex launched from Kiruna, Sweden, 68 degrees N, on February 3, 1995. Using the method of tracer correlations, we deduce that the air masses sampled at an altitude of 21 km (480 K potential temperature), where a layer of enhanced ClO mixing ratios of up to 1150 parts per trillion by volume was observed, experienced a cumulative chemical ozone loss of 1.0+/-0.3 ppmv between late November 1994 and early February 1995, This estimate of chemical ozone loss can be confirmed using independent data sets and independent methods. Calculations using a trajectory box model show that the simulations underestimate the cumulative ozone loss by approximately a factor of 2, although observed ClO and BrO mixing ratios are well reproduced by the model. Employing additional simulations of ozone loss rates for idealized conditions, we conclude that the known chlorine and bromine catalytic cycles destroying odd oxygen with the known rate constants and absorption cross sections do not quantitatively account for the early winter ozone losses infered for air masses observed at 21 km. Article in Journal/Newspaper Arctic Kiruna Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) Arctic Kiruna Journal of Geophysical Research: Atmospheres 104 D15 18755 18768 |
institution |
Open Polar |
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Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
op_collection_id |
ftfzjuelichnvdb |
language |
English |
topic |
info:eu-repo/classification/ddc/550 J |
spellingShingle |
info:eu-repo/classification/ddc/550 J Woyke, T. Müller, R. Stroh, F. MacKenna, A. R. Engel, A. Margitan, J. J. Rex, M. Carslaw, K. S. A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter |
topic_facet |
info:eu-repo/classification/ddc/550 J |
description |
We present an analysis of in situ measurements of ClO, BrO, O-3, and long-lived tracers obtained on a balloon flight in the Arctic polar vortex launched from Kiruna, Sweden, 68 degrees N, on February 3, 1995. Using the method of tracer correlations, we deduce that the air masses sampled at an altitude of 21 km (480 K potential temperature), where a layer of enhanced ClO mixing ratios of up to 1150 parts per trillion by volume was observed, experienced a cumulative chemical ozone loss of 1.0+/-0.3 ppmv between late November 1994 and early February 1995, This estimate of chemical ozone loss can be confirmed using independent data sets and independent methods. Calculations using a trajectory box model show that the simulations underestimate the cumulative ozone loss by approximately a factor of 2, although observed ClO and BrO mixing ratios are well reproduced by the model. Employing additional simulations of ozone loss rates for idealized conditions, we conclude that the known chlorine and bromine catalytic cycles destroying odd oxygen with the known rate constants and absorption cross sections do not quantitatively account for the early winter ozone losses infered for air masses observed at 21 km. |
format |
Article in Journal/Newspaper |
author |
Woyke, T. Müller, R. Stroh, F. MacKenna, A. R. Engel, A. Margitan, J. J. Rex, M. Carslaw, K. S. |
author_facet |
Woyke, T. Müller, R. Stroh, F. MacKenna, A. R. Engel, A. Margitan, J. J. Rex, M. Carslaw, K. S. |
author_sort |
Woyke, T. |
title |
A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter |
title_short |
A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter |
title_full |
A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter |
title_fullStr |
A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter |
title_full_unstemmed |
A test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of ClO, BrO, and O3, in the 1994/95 winter |
title_sort |
test of our understanding of the ozone chemistry in the arctic polar vortex based on in-situ measurements of clo, bro, and o3, in the 1994/95 winter |
publisher |
Union |
publishDate |
1999 |
url |
https://juser.fz-juelich.de/record/39899 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-39899%22 |
op_coverage |
DE |
geographic |
Arctic Kiruna |
geographic_facet |
Arctic Kiruna |
genre |
Arctic Kiruna |
genre_facet |
Arctic Kiruna |
op_source |
Journal of geophysical research / Atmospheres 104, 18755 - 18768 (1999). doi:10.1029/1999JD900287 |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000082128500019 info:eu-repo/semantics/altIdentifier/issn/0022-1406 info:eu-repo/semantics/altIdentifier/doi/10.1029/1999JD900287 info:eu-repo/semantics/altIdentifier/hdl/2128/20558 info:eu-repo/semantics/altIdentifier/issn/0148-0227 https://juser.fz-juelich.de/record/39899 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-39899%22 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/1999JD900287 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
104 |
container_issue |
D15 |
container_start_page |
18755 |
op_container_end_page |
18768 |
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1766330874142392320 |