Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate
The North Atlantic Oscillation and the Arctic Oscillation are modes of climate variability affecting temperature and precipitation in the mid-latitudes. Here we use reanalysis data and climate model simulations of historical and warm climates to show that the relationship between the two oscillation...
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Online Access: | https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37374277 https://doi.org/10.1038/s41558-020-00966-8 |
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ftharvardudash:oai:dash.harvard.edu:1/37374277 2023-05-15T14:25:30+02:00 Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate Hamouda, Mostafa E. Pasquero, Claudia Tziperman, Eli 2021-01-11 application/pdf https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37374277 https://doi.org/10.1038/s41558-020-00966-8 en_US eng Springer Science and Business Media LLC Nature Climate Change Hamouda, Mostafa E, Claudia Pasquero, and Eli Tziperman. 2021. “Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate.” Nature Climate Change 11 (2): 137–42. 1758-678X 1758-6798 https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37374277 doi:10.1038/s41558-020-00966-8 Social Sciences (miscellaneous) Environmental Science (miscellaneous) Journal Article 2021 ftharvardudash https://doi.org/10.1038/s41558-020-00966-8 2023-02-11T23:20:19Z The North Atlantic Oscillation and the Arctic Oscillation are modes of climate variability affecting temperature and precipitation in the mid-latitudes. Here we use reanalysis data and climate model simulations of historical and warm climates to show that the relationship between the two oscillations changes with climate warming. The two modes are currently highly correlated, as both are strongly influenced by the downward propagation of stratospheric polar vortex anomalies into the troposphere. When considering a very warm climate scenario, the hemispherically defined Arctic Oscillation pattern shifts to reflect variability of the North Pacific storm track, while the regionally defined North Atlantic Oscillation pattern remains stable. The stratosphere remains an important precursor for North Atlantic Oscillation, and surface Eurasian and Aleutian pressure anomalies precede stratospheric anomalies. Idealized general circulation model simulations suggest that these modifications are linked to the stronger warming of the Pacific compared with the slower warming of the Atlantic Ocean. Accepted Manuscript Article in Journal/Newspaper Arctic Arctic North Atlantic North Atlantic oscillation Harvard University: DASH - Digital Access to Scholarship at Harvard Arctic Pacific Nature Climate Change 11 2 137 142 |
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Open Polar |
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Harvard University: DASH - Digital Access to Scholarship at Harvard |
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language |
English |
topic |
Social Sciences (miscellaneous) Environmental Science (miscellaneous) |
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Social Sciences (miscellaneous) Environmental Science (miscellaneous) Hamouda, Mostafa E. Pasquero, Claudia Tziperman, Eli Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate |
topic_facet |
Social Sciences (miscellaneous) Environmental Science (miscellaneous) |
description |
The North Atlantic Oscillation and the Arctic Oscillation are modes of climate variability affecting temperature and precipitation in the mid-latitudes. Here we use reanalysis data and climate model simulations of historical and warm climates to show that the relationship between the two oscillations changes with climate warming. The two modes are currently highly correlated, as both are strongly influenced by the downward propagation of stratospheric polar vortex anomalies into the troposphere. When considering a very warm climate scenario, the hemispherically defined Arctic Oscillation pattern shifts to reflect variability of the North Pacific storm track, while the regionally defined North Atlantic Oscillation pattern remains stable. The stratosphere remains an important precursor for North Atlantic Oscillation, and surface Eurasian and Aleutian pressure anomalies precede stratospheric anomalies. Idealized general circulation model simulations suggest that these modifications are linked to the stronger warming of the Pacific compared with the slower warming of the Atlantic Ocean. Accepted Manuscript |
format |
Article in Journal/Newspaper |
author |
Hamouda, Mostafa E. Pasquero, Claudia Tziperman, Eli |
author_facet |
Hamouda, Mostafa E. Pasquero, Claudia Tziperman, Eli |
author_sort |
Hamouda, Mostafa E. |
title |
Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate |
title_short |
Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate |
title_full |
Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate |
title_fullStr |
Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate |
title_full_unstemmed |
Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate |
title_sort |
decoupling of the arctic oscillation and north atlantic oscillation in a warmer climate |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37374277 https://doi.org/10.1038/s41558-020-00966-8 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Arctic North Atlantic North Atlantic oscillation |
op_relation |
Nature Climate Change Hamouda, Mostafa E, Claudia Pasquero, and Eli Tziperman. 2021. “Decoupling of the Arctic Oscillation and North Atlantic Oscillation in a Warmer Climate.” Nature Climate Change 11 (2): 137–42. 1758-678X 1758-6798 https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37374277 doi:10.1038/s41558-020-00966-8 |
op_doi |
https://doi.org/10.1038/s41558-020-00966-8 |
container_title |
Nature Climate Change |
container_volume |
11 |
container_issue |
2 |
container_start_page |
137 |
op_container_end_page |
142 |
_version_ |
1766297889195163648 |