The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5
A strong relationship is found between changes in the meridional gradient of absorbed shortwave radiation (ASR) and Southern Hemispheric jet shifts in 21st century climate simulations of CMIP5 (Coupled Model Intercomparison Project phase 5) coupled models. The relationship is such that models with i...
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ftunivreading:oai:centaur.reading.ac.uk:46113 2024-09-09T20:07:43+00:00 The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 Ceppi, Paulo Zelinka, Mark D. Hartmann, Dennis L. 2014 https://centaur.reading.ac.uk/46113/ https://doi.org/10.1002/2014GL060043 unknown American Geophysical Union Ceppi, P. <https://centaur.reading.ac.uk/view/creators/90006578.html>, Zelinka, M. D. and Hartmann, D. L. (2014) The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5. Geophysical Research Letters, 41 (9). pp. 3244-3250. ISSN 0094-8276 doi: https://doi.org/10.1002/2014GL060043 <https://doi.org/10.1002/2014GL060043> Article PeerReviewed 2014 ftunivreading https://doi.org/10.1002/2014GL060043 2024-06-25T14:58:45Z A strong relationship is found between changes in the meridional gradient of absorbed shortwave radiation (ASR) and Southern Hemispheric jet shifts in 21st century climate simulations of CMIP5 (Coupled Model Intercomparison Project phase 5) coupled models. The relationship is such that models with increases in the meridional ASR gradient around the southern midlatitudes, and therefore increases in midlatitude baroclinicity, tend to produce a larger poleward jet shift. The ASR changes are shown to be dominated by changes in cloud properties, with sea ice declines playing a secondary role. We demonstrate that the ASR changes are the cause, and not the result, of the intermodel differences in jet response by comparing coupled simulations with experiments in which sea surface temperature increases are prescribed. Our results highlight the importance of reducing the uncertainty in cloud feedbacks in order to constrain future circulation changes. Article in Journal/Newspaper Sea ice CentAUR: Central Archive at the University of Reading Geophysical Research Letters 41 9 3244 3250 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
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unknown |
description |
A strong relationship is found between changes in the meridional gradient of absorbed shortwave radiation (ASR) and Southern Hemispheric jet shifts in 21st century climate simulations of CMIP5 (Coupled Model Intercomparison Project phase 5) coupled models. The relationship is such that models with increases in the meridional ASR gradient around the southern midlatitudes, and therefore increases in midlatitude baroclinicity, tend to produce a larger poleward jet shift. The ASR changes are shown to be dominated by changes in cloud properties, with sea ice declines playing a secondary role. We demonstrate that the ASR changes are the cause, and not the result, of the intermodel differences in jet response by comparing coupled simulations with experiments in which sea surface temperature increases are prescribed. Our results highlight the importance of reducing the uncertainty in cloud feedbacks in order to constrain future circulation changes. |
format |
Article in Journal/Newspaper |
author |
Ceppi, Paulo Zelinka, Mark D. Hartmann, Dennis L. |
spellingShingle |
Ceppi, Paulo Zelinka, Mark D. Hartmann, Dennis L. The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
author_facet |
Ceppi, Paulo Zelinka, Mark D. Hartmann, Dennis L. |
author_sort |
Ceppi, Paulo |
title |
The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
title_short |
The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
title_full |
The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
title_fullStr |
The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
title_full_unstemmed |
The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
title_sort |
response of the southern hemispheric eddy-driven jet to future changes in shortwave radiation in cmip5 |
publisher |
American Geophysical Union |
publishDate |
2014 |
url |
https://centaur.reading.ac.uk/46113/ https://doi.org/10.1002/2014GL060043 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
Ceppi, P. <https://centaur.reading.ac.uk/view/creators/90006578.html>, Zelinka, M. D. and Hartmann, D. L. (2014) The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5. Geophysical Research Letters, 41 (9). pp. 3244-3250. ISSN 0094-8276 doi: https://doi.org/10.1002/2014GL060043 <https://doi.org/10.1002/2014GL060043> |
op_doi |
https://doi.org/10.1002/2014GL060043 |
container_title |
Geophysical Research Letters |
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41 |
container_issue |
9 |
container_start_page |
3244 |
op_container_end_page |
3250 |
_version_ |
1809941377948057600 |