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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American Geophysical Union
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Online Access: | http://hdl.handle.net/10044/1/76099 https://doi.org/10.1002/2014GL060043 |
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/76099 2023-05-15T18:18:21+02:00 The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 Ceppi, P Zelinka, MD Hartmann, DL 2014-04-22 http://hdl.handle.net/10044/1/76099 https://doi.org/10.1002/2014GL060043 English eng American Geophysical Union Geophysical Research Letters 0094-8276 http://hdl.handle.net/10044/1/76099 doi:10.1002/2014GL060043 ©2014. American Geophysical Union. All Rights Reserved. 3250 3244 Science & Technology Physical Sciences Geosciences Multidisciplinary Geology CLIMATE MODELS CLOUD FEEDBACKS POLEWARD SHIFT LATITUDE Meteorology & Atmospheric Sciences Journal Article 2014 ftimperialcol https://doi.org/10.1002/2014GL060043 2020-03-12T23:38:08Z 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 Imperial College London: Spiral Geophysical Research Letters 41 9 3244 3250 |
institution |
Open Polar |
collection |
Imperial College London: Spiral |
op_collection_id |
ftimperialcol |
language |
English |
topic |
Science & Technology Physical Sciences Geosciences Multidisciplinary Geology CLIMATE MODELS CLOUD FEEDBACKS POLEWARD SHIFT LATITUDE Meteorology & Atmospheric Sciences |
spellingShingle |
Science & Technology Physical Sciences Geosciences Multidisciplinary Geology CLIMATE MODELS CLOUD FEEDBACKS POLEWARD SHIFT LATITUDE Meteorology & Atmospheric Sciences Ceppi, P Zelinka, MD Hartmann, DL The response of the Southern Hemispheric eddy-driven jet to future changes in shortwave radiation in CMIP5 |
topic_facet |
Science & Technology Physical Sciences Geosciences Multidisciplinary Geology CLIMATE MODELS CLOUD FEEDBACKS POLEWARD SHIFT LATITUDE Meteorology & Atmospheric Sciences |
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, P Zelinka, MD Hartmann, DL |
author_facet |
Ceppi, P Zelinka, MD Hartmann, DL |
author_sort |
Ceppi, P |
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 |
http://hdl.handle.net/10044/1/76099 https://doi.org/10.1002/2014GL060043 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
3250 3244 |
op_relation |
Geophysical Research Letters 0094-8276 http://hdl.handle.net/10044/1/76099 doi:10.1002/2014GL060043 |
op_rights |
©2014. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.1002/2014GL060043 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
9 |
container_start_page |
3244 |
op_container_end_page |
3250 |
_version_ |
1766194892990578688 |