Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index
The Atlantic Multidecadal Oscillation (AMO) has pronounced influences on weather and climate across the globe. This study provides a direct comparison of the observed AMO-related surface temperature and precipitation anomalies to those simulated in the Coupled Model Intercomparison Project Phase 5 (...
Published in: | Geophysical Research Letters |
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2017
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Online Access: | https://escholarship.org/uc/item/4x24m9qr https://escholarship.org/content/qt4x24m9qr/qt4x24m9qr.pdf https://doi.org/10.1002/2017gl072681 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt4x24m9qr 2024-09-15T18:21:54+00:00 Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index Lyu, Kewei Yu, Jin‐Yi 3867 - 3876 2017-04-28 application/pdf https://escholarship.org/uc/item/4x24m9qr https://escholarship.org/content/qt4x24m9qr/qt4x24m9qr.pdf https://doi.org/10.1002/2017gl072681 unknown eScholarship, University of California qt4x24m9qr https://escholarship.org/uc/item/4x24m9qr https://escholarship.org/content/qt4x24m9qr/qt4x24m9qr.pdf doi:10.1002/2017gl072681 CC-BY Geophysical Research Letters, vol 44, iss 8 Climate Action Meteorology & Atmospheric Sciences article 2017 ftcdlib https://doi.org/10.1002/2017gl072681 2024-06-28T06:28:20Z The Atlantic Multidecadal Oscillation (AMO) has pronounced influences on weather and climate across the globe. This study provides a direct comparison of the observed AMO-related surface temperature and precipitation anomalies to those simulated in the Coupled Model Intercomparison Project Phase 5 (CMIP5) models. It is found that the model-simulated AMO-related features are obscured by the global signal in some key regions if the North Atlantic sea surface temperature (SST) itself is used to represent the AMO as in previous studies. After the global mean SST is removed from the North Atlantic SST, the CMIP5 models show substantially better agreement with the observations in terms of the AMO-related worldwide impacts, such as the Pacific SST and the rainfall over the United States and India. These results suggest the removal of the global signal or signals originating in other ocean basins is a necessary procedure to uncover the AMO features in climate model simulations. Article in Journal/Newspaper North Atlantic University of California: eScholarship Geophysical Research Letters 44 8 3867 3876 |
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Open Polar |
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University of California: eScholarship |
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ftcdlib |
language |
unknown |
topic |
Climate Action Meteorology & Atmospheric Sciences |
spellingShingle |
Climate Action Meteorology & Atmospheric Sciences Lyu, Kewei Yu, Jin‐Yi Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index |
topic_facet |
Climate Action Meteorology & Atmospheric Sciences |
description |
The Atlantic Multidecadal Oscillation (AMO) has pronounced influences on weather and climate across the globe. This study provides a direct comparison of the observed AMO-related surface temperature and precipitation anomalies to those simulated in the Coupled Model Intercomparison Project Phase 5 (CMIP5) models. It is found that the model-simulated AMO-related features are obscured by the global signal in some key regions if the North Atlantic sea surface temperature (SST) itself is used to represent the AMO as in previous studies. After the global mean SST is removed from the North Atlantic SST, the CMIP5 models show substantially better agreement with the observations in terms of the AMO-related worldwide impacts, such as the Pacific SST and the rainfall over the United States and India. These results suggest the removal of the global signal or signals originating in other ocean basins is a necessary procedure to uncover the AMO features in climate model simulations. |
format |
Article in Journal/Newspaper |
author |
Lyu, Kewei Yu, Jin‐Yi |
author_facet |
Lyu, Kewei Yu, Jin‐Yi |
author_sort |
Lyu, Kewei |
title |
Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index |
title_short |
Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index |
title_full |
Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index |
title_fullStr |
Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index |
title_full_unstemmed |
Climate impacts of the Atlantic Multidecadal Oscillation simulated in the CMIP5 models: A re‐evaluation based on a revised index |
title_sort |
climate impacts of the atlantic multidecadal oscillation simulated in the cmip5 models: a re‐evaluation based on a revised index |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/4x24m9qr https://escholarship.org/content/qt4x24m9qr/qt4x24m9qr.pdf https://doi.org/10.1002/2017gl072681 |
op_coverage |
3867 - 3876 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geophysical Research Letters, vol 44, iss 8 |
op_relation |
qt4x24m9qr https://escholarship.org/uc/item/4x24m9qr https://escholarship.org/content/qt4x24m9qr/qt4x24m9qr.pdf doi:10.1002/2017gl072681 |
op_rights |
CC-BY |
op_doi |
https://doi.org/10.1002/2017gl072681 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
8 |
container_start_page |
3867 |
op_container_end_page |
3876 |
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1810460938338304000 |