Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions
These are the data and the Python notebooks required to create the figures from the paper. Abstract: Improvements are made to two areas of the United Kingdom Chemistry and Aerosol (UKCA) module, which forms part of the Met Office Unified Model (UM) used for weather and climate applications. Firstly,...
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Online Access: | https://dx.doi.org/10.5281/zenodo.1486304 https://zenodo.org/record/1486304 |
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ftdatacite:10.5281/zenodo.1486304 2023-05-15T13:35:21+02:00 Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions Dennison, Fraser Keeble, James Morgenstern, Olaf Zeng, Guang Abraham, N. Luke Yang, Xin 2018 https://dx.doi.org/10.5281/zenodo.1486304 https://zenodo.org/record/1486304 en eng Zenodo https://dx.doi.org/10.5281/zenodo.1486305 Open Access Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess CC-BY UKCA Stratosphere Ozone dataset Dataset 2018 ftdatacite https://doi.org/10.5281/zenodo.1486304 https://doi.org/10.5281/zenodo.1486305 2021-11-05T12:55:41Z These are the data and the Python notebooks required to create the figures from the paper. Abstract: Improvements are made to two areas of the United Kingdom Chemistry and Aerosol (UKCA) module, which forms part of the Met Office Unified Model (UM) used for weather and climate applications. Firstly, a solar cycle is added to the photolysis scheme. The effect on total column ozone of this addition was found to be around 1-2% in mid-latitude and equatorial regions in phase with the solar cycle. Secondly, reactions occurring on the surfaces of polar stratospheric clouds and sulfate aerosol are updated and extended by modification of the uptake coefficients of five existing reactions and the addition of a further eight reactions involving bromine species. These modifications are shown to reduce the overabundance of modeled total-column ozone in the Arctic during October to February, southern mid-latitudes during August, and the Antarctic during September. Antarctic springtime ozone depletion is shown to be enhanced by 25 DU on average, which now causes the ozone hole to be somewhat too deep compared to observations. We show that this is in part due to a cold bias of the Antarctic polar vortex in the model. Dataset Antarc* Antarctic Arctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Arctic The Antarctic |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
topic |
UKCA Stratosphere Ozone |
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UKCA Stratosphere Ozone Dennison, Fraser Keeble, James Morgenstern, Olaf Zeng, Guang Abraham, N. Luke Yang, Xin Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions |
topic_facet |
UKCA Stratosphere Ozone |
description |
These are the data and the Python notebooks required to create the figures from the paper. Abstract: Improvements are made to two areas of the United Kingdom Chemistry and Aerosol (UKCA) module, which forms part of the Met Office Unified Model (UM) used for weather and climate applications. Firstly, a solar cycle is added to the photolysis scheme. The effect on total column ozone of this addition was found to be around 1-2% in mid-latitude and equatorial regions in phase with the solar cycle. Secondly, reactions occurring on the surfaces of polar stratospheric clouds and sulfate aerosol are updated and extended by modification of the uptake coefficients of five existing reactions and the addition of a further eight reactions involving bromine species. These modifications are shown to reduce the overabundance of modeled total-column ozone in the Arctic during October to February, southern mid-latitudes during August, and the Antarctic during September. Antarctic springtime ozone depletion is shown to be enhanced by 25 DU on average, which now causes the ozone hole to be somewhat too deep compared to observations. We show that this is in part due to a cold bias of the Antarctic polar vortex in the model. |
format |
Dataset |
author |
Dennison, Fraser Keeble, James Morgenstern, Olaf Zeng, Guang Abraham, N. Luke Yang, Xin |
author_facet |
Dennison, Fraser Keeble, James Morgenstern, Olaf Zeng, Guang Abraham, N. Luke Yang, Xin |
author_sort |
Dennison, Fraser |
title |
Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions |
title_short |
Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions |
title_full |
Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions |
title_fullStr |
Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions |
title_full_unstemmed |
Improvements To Stratospheric Chemistry Scheme In The Um-Ukca (V10.7) Model: Solar Cycle And Heterogeneous Reactions |
title_sort |
improvements to stratospheric chemistry scheme in the um-ukca (v10.7) model: solar cycle and heterogeneous reactions |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://dx.doi.org/10.5281/zenodo.1486304 https://zenodo.org/record/1486304 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
https://dx.doi.org/10.5281/zenodo.1486305 |
op_rights |
Open Access Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.1486304 https://doi.org/10.5281/zenodo.1486305 |
_version_ |
1766064621788069888 |