Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic
Abstract We simulated the seasonal temperature evolution in the atmosphere of Antarctica and the Arctic focusing on infrared processes. Contributions by other processes were parametrized and kept fixed throughout the simulations. The model was run for current CO2 and CH4 and for doubled concentratio...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2023GL105600 |
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| _version_ | 1849723305731293184 |
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| author | Justus Notholt Holger Schmithüsen Matthias Buschmann Axel Kleidon |
| author_facet | Justus Notholt Holger Schmithüsen Matthias Buschmann Axel Kleidon |
| author_sort | Justus Notholt |
| collection | DOAJ |
| description | Abstract We simulated the seasonal temperature evolution in the atmosphere of Antarctica and the Arctic focusing on infrared processes. Contributions by other processes were parametrized and kept fixed throughout the simulations. The model was run for current CO2 and CH4 and for doubled concentrations. For doubling CH4 the warming in Antarctica is restricted to the lowest few hundred meters above the surface while in the Arctic we find a warming in the whole troposphere. We find that the amount of water is the main driver for the differences between both polar regions. When increasing both, CO2 and CH4 from pre‐industrial values to current concentrations, and averaged over the whole troposphere, we find a warming of 0.42 K for the Arctic and a slight cooling of 0.01 K for Antarctica. Our results contribute to the understanding of the lack of warming seen in Antarctica throughout the last decades. |
| format | Article |
| id | doaj-art-922905f87469485ab80d2eaae206b0bd |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-922905f87469485ab80d2eaae206b0bd2025-08-20T03:11:03ZengWileyGeophysical Research Letters0094-82761944-80072024-01-01512n/an/a10.1029/2023GL105600Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the ArcticJustus Notholt0Holger Schmithüsen1Matthias Buschmann2Axel Kleidon3Institute of Environmental Physics University of Bremen Bremen GermanyAlfred‐Wegener‐Institute for Polar and Marine Research Bremerhaven GermanyInstitute of Environmental Physics University of Bremen Bremen GermanyMax Planck Institute for Biogeochemistry Jena GermanyAbstract We simulated the seasonal temperature evolution in the atmosphere of Antarctica and the Arctic focusing on infrared processes. Contributions by other processes were parametrized and kept fixed throughout the simulations. The model was run for current CO2 and CH4 and for doubled concentrations. For doubling CH4 the warming in Antarctica is restricted to the lowest few hundred meters above the surface while in the Arctic we find a warming in the whole troposphere. We find that the amount of water is the main driver for the differences between both polar regions. When increasing both, CO2 and CH4 from pre‐industrial values to current concentrations, and averaged over the whole troposphere, we find a warming of 0.42 K for the Arctic and a slight cooling of 0.01 K for Antarctica. Our results contribute to the understanding of the lack of warming seen in Antarctica throughout the last decades.https://doi.org/10.1029/2023GL105600 |
| spellingShingle | Justus Notholt Holger Schmithüsen Matthias Buschmann Axel Kleidon Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic Geophysical Research Letters |
| title | Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic |
| title_full | Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic |
| title_fullStr | Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic |
| title_full_unstemmed | Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic |
| title_short | Infrared Radiative Effects of Increasing CO2 and CH4 on the Atmosphere in Antarctica Compared to the Arctic |
| title_sort | infrared radiative effects of increasing co2 and ch4 on the atmosphere in antarctica compared to the arctic |
| url | https://doi.org/10.1029/2023GL105600 |
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