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Quantifying Arctic lower stratospheric ozone sources in winter and spring

The dynamical and chemical characteristics of unusually low Arctic ozone events in 2005 and 2011 have been well-studied. However, the quantitative identification of Arctic ozone sources is lacking. Here, we use tagged ozone tracers in a numerical simulation to quantify the contributions to Arctic lo...

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Autores principales: Pan, Chen, Zhu, Bin, Gao, Jinhui, Hou, Xuewei, Kang, Hanqing, Wang, Dongdong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5997751/
https://www.ncbi.nlm.nih.gov/pubmed/29895951
http://dx.doi.org/10.1038/s41598-018-27045-5
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author Pan, Chen
Zhu, Bin
Gao, Jinhui
Hou, Xuewei
Kang, Hanqing
Wang, Dongdong
author_facet Pan, Chen
Zhu, Bin
Gao, Jinhui
Hou, Xuewei
Kang, Hanqing
Wang, Dongdong
author_sort Pan, Chen
collection PubMed
description The dynamical and chemical characteristics of unusually low Arctic ozone events in 2005 and 2011 have been well-studied. However, the quantitative identification of Arctic ozone sources is lacking. Here, we use tagged ozone tracers in a numerical simulation to quantify the contributions to Arctic lower stratospheric ozone (ARCLS_O(3)) at diverse latitudes in winter and spring from 2005–2011. We demonstrate that the northern mid-latitudinal stratosphere steadily contributes approximately half of ARCLS_O(3). The absolute contributions during February have evident variations, which are smaller in cold years (151.3 ± 7.0 Dobson units (DU) in 2005 and 139.0 ± 7.4 DU in 2011) and greater in warm years (182.6 ± 7.3 DU in 2006 and 164.6 ± 7.4 DU in 2009). The tropical stratosphere is also an important source. During February, its absolute contributions are 66.5 ± 11.5 DU (2005), 73.1 ± 4.7 DU (2011), 146.0 ± 9.0 DU (2006), and 153.7 ± 7.0 DU (2009). Before and after stratospheric warming, variations in the tropical components of ARCLS_O(3) (51.8 DU in 2006 and 77.0 DU in 2009) are significantly larger than those in the mid-latitudinal components (17.6 DU in 2006 and 18.1 DU in 2009). These results imply that although the mid-latitudinal components of ARCLS_O(3) are larger, the tropical components control stratospheric temperature-induced ARCLS_O(3) anomalies in winter and spring.
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spelling pubmed-59977512018-06-21 Quantifying Arctic lower stratospheric ozone sources in winter and spring Pan, Chen Zhu, Bin Gao, Jinhui Hou, Xuewei Kang, Hanqing Wang, Dongdong Sci Rep Article The dynamical and chemical characteristics of unusually low Arctic ozone events in 2005 and 2011 have been well-studied. However, the quantitative identification of Arctic ozone sources is lacking. Here, we use tagged ozone tracers in a numerical simulation to quantify the contributions to Arctic lower stratospheric ozone (ARCLS_O(3)) at diverse latitudes in winter and spring from 2005–2011. We demonstrate that the northern mid-latitudinal stratosphere steadily contributes approximately half of ARCLS_O(3). The absolute contributions during February have evident variations, which are smaller in cold years (151.3 ± 7.0 Dobson units (DU) in 2005 and 139.0 ± 7.4 DU in 2011) and greater in warm years (182.6 ± 7.3 DU in 2006 and 164.6 ± 7.4 DU in 2009). The tropical stratosphere is also an important source. During February, its absolute contributions are 66.5 ± 11.5 DU (2005), 73.1 ± 4.7 DU (2011), 146.0 ± 9.0 DU (2006), and 153.7 ± 7.0 DU (2009). Before and after stratospheric warming, variations in the tropical components of ARCLS_O(3) (51.8 DU in 2006 and 77.0 DU in 2009) are significantly larger than those in the mid-latitudinal components (17.6 DU in 2006 and 18.1 DU in 2009). These results imply that although the mid-latitudinal components of ARCLS_O(3) are larger, the tropical components control stratospheric temperature-induced ARCLS_O(3) anomalies in winter and spring. Nature Publishing Group UK 2018-06-12 /pmc/articles/PMC5997751/ /pubmed/29895951 http://dx.doi.org/10.1038/s41598-018-27045-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Pan, Chen
Zhu, Bin
Gao, Jinhui
Hou, Xuewei
Kang, Hanqing
Wang, Dongdong
Quantifying Arctic lower stratospheric ozone sources in winter and spring
title Quantifying Arctic lower stratospheric ozone sources in winter and spring
title_full Quantifying Arctic lower stratospheric ozone sources in winter and spring
title_fullStr Quantifying Arctic lower stratospheric ozone sources in winter and spring
title_full_unstemmed Quantifying Arctic lower stratospheric ozone sources in winter and spring
title_short Quantifying Arctic lower stratospheric ozone sources in winter and spring
title_sort quantifying arctic lower stratospheric ozone sources in winter and spring
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5997751/
https://www.ncbi.nlm.nih.gov/pubmed/29895951
http://dx.doi.org/10.1038/s41598-018-27045-5
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