Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920
Earth’s climate fluctuates considerably on decadal-multidecadal time scales, often causing large damages to our society and environment. These fluctuations usually result from internal dynamics, and many studies have linked them to internal climate modes in the North Atlantic and Pacific oceans. Her...
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ftpubmed:oai:pubmedcentral.nih.gov:7439312 2023-05-15T17:28:04+02:00 Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 Qin, Minhua Dai, Aiguo Hua, Wenjian 2020-07-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7439312/ https://doi.org/10.1126/sciadv.abb0425 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7439312/ http://dx.doi.org/10.1126/sciadv.abb0425 Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/ https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. CC-BY-NC Sci Adv Research Articles Text 2020 ftpubmed https://doi.org/10.1126/sciadv.abb0425 2020-08-23T00:41:58Z Earth’s climate fluctuates considerably on decadal-multidecadal time scales, often causing large damages to our society and environment. These fluctuations usually result from internal dynamics, and many studies have linked them to internal climate modes in the North Atlantic and Pacific oceans. Here, we show that variations in volcanic and anthropogenic aerosols have caused in-phase, multidecadal SST variations since 1920 across all ocean basins. These forced variations resemble the Atlantic Multidecadal Oscillation (AMO) in time. Unlike the North Atlantic, where indirect and direct aerosol effects on surface solar radiation drive the multidecadal SST variations, over the tropical central and western Pacific atmospheric circulation response to aerosol forcing plays an important role, whereas aerosol-induced radiation change is small. Our new finding implies that AMO-like climate variations in Eurasia, North America, and other regions may be partly caused by the aerosol forcing, rather than being originated from the North Atlantic SST variations as previously thought. Text North Atlantic PubMed Central (PMC) Pacific Science Advances 6 29 eabb0425 |
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Research Articles Qin, Minhua Dai, Aiguo Hua, Wenjian Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
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Research Articles |
description |
Earth’s climate fluctuates considerably on decadal-multidecadal time scales, often causing large damages to our society and environment. These fluctuations usually result from internal dynamics, and many studies have linked them to internal climate modes in the North Atlantic and Pacific oceans. Here, we show that variations in volcanic and anthropogenic aerosols have caused in-phase, multidecadal SST variations since 1920 across all ocean basins. These forced variations resemble the Atlantic Multidecadal Oscillation (AMO) in time. Unlike the North Atlantic, where indirect and direct aerosol effects on surface solar radiation drive the multidecadal SST variations, over the tropical central and western Pacific atmospheric circulation response to aerosol forcing plays an important role, whereas aerosol-induced radiation change is small. Our new finding implies that AMO-like climate variations in Eurasia, North America, and other regions may be partly caused by the aerosol forcing, rather than being originated from the North Atlantic SST variations as previously thought. |
format |
Text |
author |
Qin, Minhua Dai, Aiguo Hua, Wenjian |
author_facet |
Qin, Minhua Dai, Aiguo Hua, Wenjian |
author_sort |
Qin, Minhua |
title |
Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
title_short |
Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
title_full |
Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
title_fullStr |
Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
title_full_unstemmed |
Aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
title_sort |
aerosol-forced multidecadal variations across all ocean basins in models and observations since 1920 |
publisher |
American Association for the Advancement of Science |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7439312/ https://doi.org/10.1126/sciadv.abb0425 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
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North Atlantic |
op_source |
Sci Adv |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7439312/ http://dx.doi.org/10.1126/sciadv.abb0425 |
op_rights |
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/ https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
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https://doi.org/10.1126/sciadv.abb0425 |
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Science Advances |
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29 |
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