Comparison of empirically derived ozone loss rates in the Arctic vortex
A number of studies have reported empirical estimates of ozone loss in the Arctic vortex. They have used satellite and in situ measurements and have principally covered the Arctic winters in the 1990s. While there is qualitative consistency between the patterns of ozone loss, a quantitative comparis...
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ftfzjuelichnvdb:oai:juser.fz-juelich.de:24728 2023-05-15T14:50:14+02:00 Comparison of empirically derived ozone loss rates in the Arctic vortex Harris, R. J. Rex, M. Knudsen, B. M. Manney, G. L. Müller, R. von der Gathen, P. DE 2002 https://juser.fz-juelich.de/record/24728 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-24728%22 eng eng Union info:eu-repo/semantics/altIdentifier/issn/0022-1406 info:eu-repo/semantics/altIdentifier/hdl/2128/20883 info:eu-repo/semantics/altIdentifier/wos/WOS:000180371300001 info:eu-repo/semantics/altIdentifier/issn/0148-0227 info:eu-repo/semantics/altIdentifier/doi/10.1029/2001JD000482 https://juser.fz-juelich.de/record/24728 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-24728%22 info:eu-repo/semantics/openAccess Journal of geophysical research / Atmospheres 107, D20 (2002). doi:10.1029/2001JD000482 info:eu-repo/classification/ddc/550 J ozone stratosphere Arctic chemical loss estimate comparison info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2002 ftfzjuelichnvdb https://doi.org/10.1029/2001JD000482 2022-07-14T10:45:02Z A number of studies have reported empirical estimates of ozone loss in the Arctic vortex. They have used satellite and in situ measurements and have principally covered the Arctic winters in the 1990s. While there is qualitative consistency between the patterns of ozone loss, a quantitative comparison of the published values shows apparent disagreements. In this paper we examine these disagreements in more detail. We choose to concentrate on the five main techniques (Match, Systeme d'Analyse par Observation Zenithale (SAOZ)/REPROBUS, Microwave Limb Sounder (MLS), vortex average descent, and the Halogen Occultation Experiment (HALOE) ozone tracer approach). Estimates of the ozone losses in three winters (1994/1995, 1995/1996 and 1996/1997) are recalculated so that the same time periods, altitude ranges, and definitions of the Arctic vortex are used. This recalculation reveals a remarkably good agreement between the various estimates. For example, a superficial comparison of results from Match and from MLS indicates a big discrepancy (2.0+/-0.3 and 0.85 ppmv, respectively, for air ending at similar to460 K in March 1995). However, the more precise comparisons presented here reveal good agreement for the individual MLS periods (0.5+/-0.1 versus 0.5 ppmv; 0.4+/-0.2 versus 0.3-0.4 ppmv; and 0.16+/-0.09 ppmv versus no significant loss). Initial comparisons of the column losses derived for 1999/2000 also show good agreement with four techniques, giving 105 DU (SAOZ/REPROBUS), 80 DU (380-700 K partial column from Polar Ozone and Aerosol Monitoring (POAM)/REPROBUS), 85+/-10 DU (HALOE ozone tracer), and 88+/-13 (400-580 partial column from Match). There are some remaining discrepancies with ozone losses calculated using HALOE ozone tracer relations; it is important to ensure that the initial relation is truly representative of the vortex prior to the period of ozone loss. Article in Journal/Newspaper Arctic Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) Arctic Journal of Geophysical Research 107 D20 |
institution |
Open Polar |
collection |
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources) |
op_collection_id |
ftfzjuelichnvdb |
language |
English |
topic |
info:eu-repo/classification/ddc/550 J ozone stratosphere Arctic chemical loss estimate comparison |
spellingShingle |
info:eu-repo/classification/ddc/550 J ozone stratosphere Arctic chemical loss estimate comparison Harris, R. J. Rex, M. Knudsen, B. M. Manney, G. L. Müller, R. von der Gathen, P. Comparison of empirically derived ozone loss rates in the Arctic vortex |
topic_facet |
info:eu-repo/classification/ddc/550 J ozone stratosphere Arctic chemical loss estimate comparison |
description |
A number of studies have reported empirical estimates of ozone loss in the Arctic vortex. They have used satellite and in situ measurements and have principally covered the Arctic winters in the 1990s. While there is qualitative consistency between the patterns of ozone loss, a quantitative comparison of the published values shows apparent disagreements. In this paper we examine these disagreements in more detail. We choose to concentrate on the five main techniques (Match, Systeme d'Analyse par Observation Zenithale (SAOZ)/REPROBUS, Microwave Limb Sounder (MLS), vortex average descent, and the Halogen Occultation Experiment (HALOE) ozone tracer approach). Estimates of the ozone losses in three winters (1994/1995, 1995/1996 and 1996/1997) are recalculated so that the same time periods, altitude ranges, and definitions of the Arctic vortex are used. This recalculation reveals a remarkably good agreement between the various estimates. For example, a superficial comparison of results from Match and from MLS indicates a big discrepancy (2.0+/-0.3 and 0.85 ppmv, respectively, for air ending at similar to460 K in March 1995). However, the more precise comparisons presented here reveal good agreement for the individual MLS periods (0.5+/-0.1 versus 0.5 ppmv; 0.4+/-0.2 versus 0.3-0.4 ppmv; and 0.16+/-0.09 ppmv versus no significant loss). Initial comparisons of the column losses derived for 1999/2000 also show good agreement with four techniques, giving 105 DU (SAOZ/REPROBUS), 80 DU (380-700 K partial column from Polar Ozone and Aerosol Monitoring (POAM)/REPROBUS), 85+/-10 DU (HALOE ozone tracer), and 88+/-13 (400-580 partial column from Match). There are some remaining discrepancies with ozone losses calculated using HALOE ozone tracer relations; it is important to ensure that the initial relation is truly representative of the vortex prior to the period of ozone loss. |
format |
Article in Journal/Newspaper |
author |
Harris, R. J. Rex, M. Knudsen, B. M. Manney, G. L. Müller, R. von der Gathen, P. |
author_facet |
Harris, R. J. Rex, M. Knudsen, B. M. Manney, G. L. Müller, R. von der Gathen, P. |
author_sort |
Harris, R. J. |
title |
Comparison of empirically derived ozone loss rates in the Arctic vortex |
title_short |
Comparison of empirically derived ozone loss rates in the Arctic vortex |
title_full |
Comparison of empirically derived ozone loss rates in the Arctic vortex |
title_fullStr |
Comparison of empirically derived ozone loss rates in the Arctic vortex |
title_full_unstemmed |
Comparison of empirically derived ozone loss rates in the Arctic vortex |
title_sort |
comparison of empirically derived ozone loss rates in the arctic vortex |
publisher |
Union |
publishDate |
2002 |
url |
https://juser.fz-juelich.de/record/24728 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-24728%22 |
op_coverage |
DE |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of geophysical research / Atmospheres 107, D20 (2002). doi:10.1029/2001JD000482 |
op_relation |
info:eu-repo/semantics/altIdentifier/issn/0022-1406 info:eu-repo/semantics/altIdentifier/hdl/2128/20883 info:eu-repo/semantics/altIdentifier/wos/WOS:000180371300001 info:eu-repo/semantics/altIdentifier/issn/0148-0227 info:eu-repo/semantics/altIdentifier/doi/10.1029/2001JD000482 https://juser.fz-juelich.de/record/24728 https://juser.fz-juelich.de/search?p=id:%22PreJuSER-24728%22 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2001JD000482 |
container_title |
Journal of Geophysical Research |
container_volume |
107 |
container_issue |
D20 |
_version_ |
1766321273494831104 |