Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000
We have used the SLIMCAT three-dimensional chemical transport model together with observations from the Stratospheric Aerosol and Gas Experiment (SAGE III) Ozone Loss and Validation Experiment (SOLVE) and the Third European Stratospheric Experiment on Ozone (THESEO 2000) to quantify the effect of de...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | https://epic.awi.de/id/eprint/4418/ https://doi.org/10.1029/2001JD000445 https://hdl.handle.net/10013/epic.14993 |
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ftawi:oai:epic.awi.de:4418 2024-09-15T17:51:34+00:00 Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 Davies, S. Chipperfield, M. P. Carslaw, K. S. Sinnhuber, B.-M. Anderson, J. G. Stimpfle, R. Wilmouth, D. Fahey, D. W. Popp, P. J. Richard, E. C. Jost, H. Webster, C. R. von der Gathen, Peter 2002 https://epic.awi.de/id/eprint/4418/ https://doi.org/10.1029/2001JD000445 https://hdl.handle.net/10013/epic.14993 unknown Davies, S. , Chipperfield, M. P. , Carslaw, K. S. , Sinnhuber, B. M. , Anderson, J. G. , Stimpfle, R. , Wilmouth, D. , Fahey, D. W. , Popp, P. J. , Richard, E. C. , Jost, H. , Webster, C. R. and von der Gathen, P. orcid:0000-0001-7409-1556 (2002) Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 , Journal of Geophysical Research, 108(D5), 8322, 65 , 1 - 15 . doi:10.1029/2001JD000445 <https://doi.org/10.1029/2001JD000445> , hdl:10013/epic.14993 EPIC3Journal of Geophysical Research, 108(D5), 8322, 65, pp. 1 - 15 Article isiRev 2002 ftawi https://doi.org/10.1029/2001JD000445 2024-06-24T03:54:51Z We have used the SLIMCAT three-dimensional chemical transport model together with observations from the Stratospheric Aerosol and Gas Experiment (SAGE III) Ozone Loss and Validation Experiment (SOLVE) and the Third European Stratospheric Experiment on Ozone (THESEO 2000) to quantify the effect of denitrification on Arctic ozone loss. We have used two different denitrification schemes in the model: one based on the sedimentation of ice particles containing cocondensed nitric acid trihydrate (NAT) and the other based on large NAT particles. The model was forced using both UK Meteorological Office (UKMO) and European Centre for Medium-Range Weather Forecasts (ECMWF) analyses. In the Arctic lower stratosphere the UKMO analyzed temperatures are similar to the ECMWF, except at temperatures near the ice point where the UKMO analyses are colder by over 2 K. Consequently, the UKMO analyses predicted large regions of ice clouds, in contrast to the ECMWF. The denitrification scheme based on large NAT particles gives the best agreement with ER-2 NOy observations for both sets of meteorological analyses. Although the ice scheme and UKMO analyses also produce denitrification, the vertical extent of denitrification and renitrification does not agree as well with the observed NOy. Uncertainties in the budget of ClOy observations from the ER-2 prevent an indirect validation of the best model denitrification scheme based on these data. The denitrified model runs give the best agreement with the observed HCl and ClONO2 reservoirs in mid March. However, UKMO-forced runs generally overestimate the observed ClOx during the same period. The denitrified model runs indicate that by late March 56-74% O3 loss had occurred at 460 K and that denitrification contributed 21-30% of this loss. The model runs showing the largest O3 depletion (forced by UKMO analyses) agree well with ER-2 and ozone sonde data, although these runs overestimated ClOx. Article in Journal/Newspaper Arctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Journal of Geophysical Research: Atmospheres 107 D5 SOL 65-1 SOL 65-18 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
We have used the SLIMCAT three-dimensional chemical transport model together with observations from the Stratospheric Aerosol and Gas Experiment (SAGE III) Ozone Loss and Validation Experiment (SOLVE) and the Third European Stratospheric Experiment on Ozone (THESEO 2000) to quantify the effect of denitrification on Arctic ozone loss. We have used two different denitrification schemes in the model: one based on the sedimentation of ice particles containing cocondensed nitric acid trihydrate (NAT) and the other based on large NAT particles. The model was forced using both UK Meteorological Office (UKMO) and European Centre for Medium-Range Weather Forecasts (ECMWF) analyses. In the Arctic lower stratosphere the UKMO analyzed temperatures are similar to the ECMWF, except at temperatures near the ice point where the UKMO analyses are colder by over 2 K. Consequently, the UKMO analyses predicted large regions of ice clouds, in contrast to the ECMWF. The denitrification scheme based on large NAT particles gives the best agreement with ER-2 NOy observations for both sets of meteorological analyses. Although the ice scheme and UKMO analyses also produce denitrification, the vertical extent of denitrification and renitrification does not agree as well with the observed NOy. Uncertainties in the budget of ClOy observations from the ER-2 prevent an indirect validation of the best model denitrification scheme based on these data. The denitrified model runs give the best agreement with the observed HCl and ClONO2 reservoirs in mid March. However, UKMO-forced runs generally overestimate the observed ClOx during the same period. The denitrified model runs indicate that by late March 56-74% O3 loss had occurred at 460 K and that denitrification contributed 21-30% of this loss. The model runs showing the largest O3 depletion (forced by UKMO analyses) agree well with ER-2 and ozone sonde data, although these runs overestimated ClOx. |
format |
Article in Journal/Newspaper |
author |
Davies, S. Chipperfield, M. P. Carslaw, K. S. Sinnhuber, B.-M. Anderson, J. G. Stimpfle, R. Wilmouth, D. Fahey, D. W. Popp, P. J. Richard, E. C. Jost, H. Webster, C. R. von der Gathen, Peter |
spellingShingle |
Davies, S. Chipperfield, M. P. Carslaw, K. S. Sinnhuber, B.-M. Anderson, J. G. Stimpfle, R. Wilmouth, D. Fahey, D. W. Popp, P. J. Richard, E. C. Jost, H. Webster, C. R. von der Gathen, Peter Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 |
author_facet |
Davies, S. Chipperfield, M. P. Carslaw, K. S. Sinnhuber, B.-M. Anderson, J. G. Stimpfle, R. Wilmouth, D. Fahey, D. W. Popp, P. J. Richard, E. C. Jost, H. Webster, C. R. von der Gathen, Peter |
author_sort |
Davies, S. |
title |
Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 |
title_short |
Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 |
title_full |
Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 |
title_fullStr |
Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 |
title_full_unstemmed |
Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 |
title_sort |
modeling the effect of denitrification on arctic ozone depletion during winter 1999/2000 |
publishDate |
2002 |
url |
https://epic.awi.de/id/eprint/4418/ https://doi.org/10.1029/2001JD000445 https://hdl.handle.net/10013/epic.14993 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
EPIC3Journal of Geophysical Research, 108(D5), 8322, 65, pp. 1 - 15 |
op_relation |
Davies, S. , Chipperfield, M. P. , Carslaw, K. S. , Sinnhuber, B. M. , Anderson, J. G. , Stimpfle, R. , Wilmouth, D. , Fahey, D. W. , Popp, P. J. , Richard, E. C. , Jost, H. , Webster, C. R. and von der Gathen, P. orcid:0000-0001-7409-1556 (2002) Modeling the effect of denitrification on Arctic ozone depletion during winter 1999/2000 , Journal of Geophysical Research, 108(D5), 8322, 65 , 1 - 15 . doi:10.1029/2001JD000445 <https://doi.org/10.1029/2001JD000445> , hdl:10013/epic.14993 |
op_doi |
https://doi.org/10.1029/2001JD000445 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
107 |
container_issue |
D5 |
container_start_page |
SOL 65-1 |
op_container_end_page |
SOL 65-18 |
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1810293508297195520 |