- Arctic warming was more pronounced than warming in midlatitudes in the last decades making this region a hotspot of climate change. Associated with this, a rapid decline of sea-ice extent and a decrease of its thickness has been observed. Sea-ice retreat allows for an increased transport of heat and momentum from the ocean up to the tropo- and stratosphere by enhanced upward propagation of planetary-scale atmospheric waves. In the upper atmosphere, these waves deposit the momentum transported, disturbing the stratospheric polar vortex, which can lead to a breakdown of this circulation with the potential to also significantly impact the troposphere in mid- to late-winter and early spring. Therefore, an accurate representation of stratospheric processes in climate models is necessary to improve the understanding of the impact of retreating sea ice on the atmospheric circulation. By modeling the atmospheric response to a prescribed decline in Arctic sea ice, we show that including interactive stratospheric ozone chemistry in atmosphericArctic warming was more pronounced than warming in midlatitudes in the last decades making this region a hotspot of climate change. Associated with this, a rapid decline of sea-ice extent and a decrease of its thickness has been observed. Sea-ice retreat allows for an increased transport of heat and momentum from the ocean up to the tropo- and stratosphere by enhanced upward propagation of planetary-scale atmospheric waves. In the upper atmosphere, these waves deposit the momentum transported, disturbing the stratospheric polar vortex, which can lead to a breakdown of this circulation with the potential to also significantly impact the troposphere in mid- to late-winter and early spring. Therefore, an accurate representation of stratospheric processes in climate models is necessary to improve the understanding of the impact of retreating sea ice on the atmospheric circulation. By modeling the atmospheric response to a prescribed decline in Arctic sea ice, we show that including interactive stratospheric ozone chemistry in atmospheric model calculations leads to an improvement in tropo-stratospheric interactions compared to simulations without interactive chemistry. This suggests that stratospheric ozone chemistry is important for the understanding of sea ice related impacts on atmospheric dynamics.…
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MetadatenAuthor details: | Erik RomanowskyORCiD, Dörthe HandorfORCiD, Ralf JaiserORCiDGND, Ingo WohltmannORCiD, Wolfgang DornORCiDGND, Jinro Ukita, Judah CohenORCiD, Klaus Dethloff, Markus RexORCiDGND |
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DOI: | https://doi.org/10.1038/s41598-019-43823-1 |
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ISSN: | 2045-2322 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/31138819 |
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Title of parent work (English): | Scientific reports |
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Publisher: | Nature Publ. Group |
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Place of publishing: | London |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2019/05/28 |
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Publication year: | 2019 |
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Release date: | 2021/02/04 |
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Volume: | 9 |
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Number of pages: | 7 |
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Funding institution: | Helmholtz Climate Initiative REKLIM; German Federal Ministry for Education and Research (BMBF)Federal Ministry of Education & Research (BMBF) [03F0777A]; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), within the Transregional Collaborative Research Center "ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC) 3"German Research Foundation Programme (FP7/2007-2013)European Union (EU) [603557]; ArCS InterDec project; Belmont Forum InterDec project; US National Science FoundationNational Science Foundation (NSF) [AGS-1657748, PLR-1504361] |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Peer review: | Referiert |
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Publishing method: | Open Access / Gold Open-Access |
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| DOAJ gelistet |
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License (German): | CC-BY - Namensnennung 4.0 International |
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