Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC)
There is a growing debate regarding the influence of solar activity on climate change as the solar forcing signal on decadal/multidecadal timescales is not robust in long-term reconstructed climate data or numerical simulations. However, solar forcing could be amplified by ocean–atmosphere coupling...
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Online Access: | http://dx.doi.org/10.3389/feart.2023.1165386 https://www.frontiersin.org/articles/10.3389/feart.2023.1165386/full |
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crfrontiers:10.3389/feart.2023.1165386 2024-09-15T18:23:35+00:00 Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) Ye, Aihua Zhu, Zhipeng Zhang, Ruyi Xiao, Ziniu Zhou, Limin 2023 http://dx.doi.org/10.3389/feart.2023.1165386 https://www.frontiersin.org/articles/10.3389/feart.2023.1165386/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 11 ISSN 2296-6463 journal-article 2023 crfrontiers https://doi.org/10.3389/feart.2023.1165386 2024-07-16T04:03:20Z There is a growing debate regarding the influence of solar activity on climate change as the solar forcing signal on decadal/multidecadal timescales is not robust in long-term reconstructed climate data or numerical simulations. However, solar forcing could be amplified by ocean–atmosphere coupling in sensitive regions, including the North Atlantic Ocean (N.A.). This study assessed the influence of varied total solar irradiance (TSI) due to the effects of solar activity on Atlantic Meridional Overturning Circulation (AMOC) based on an Earth System model with intermediate complexity (PLASIM-GENIE). Three groups of experiments with different TSI series; i.e., constant (NS), decadal varied (DS), and reconstructed whole (AS) for 1610–2000, were conducted and the AMOC response was investigated. The results showed that the internal forcing of the climate system led to quasi-35-year and quasi-65-year AMOC cycles and a significant and stable negative correlation between TSI and AMOC on a multidecadal timescale. The period was significantly extended due to solar forcing. The declining AMOC trend occurred in simulations after 1800. Thus, solar forcing contributed to a weakening AMOC at a rate of 0.41 Sv per century. The decadal variation in TSI was the main contributor to this decline due to solar forcing. Article in Journal/Newspaper North Atlantic Frontiers (Publisher) Frontiers in Earth Science 11 |
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There is a growing debate regarding the influence of solar activity on climate change as the solar forcing signal on decadal/multidecadal timescales is not robust in long-term reconstructed climate data or numerical simulations. However, solar forcing could be amplified by ocean–atmosphere coupling in sensitive regions, including the North Atlantic Ocean (N.A.). This study assessed the influence of varied total solar irradiance (TSI) due to the effects of solar activity on Atlantic Meridional Overturning Circulation (AMOC) based on an Earth System model with intermediate complexity (PLASIM-GENIE). Three groups of experiments with different TSI series; i.e., constant (NS), decadal varied (DS), and reconstructed whole (AS) for 1610–2000, were conducted and the AMOC response was investigated. The results showed that the internal forcing of the climate system led to quasi-35-year and quasi-65-year AMOC cycles and a significant and stable negative correlation between TSI and AMOC on a multidecadal timescale. The period was significantly extended due to solar forcing. The declining AMOC trend occurred in simulations after 1800. Thus, solar forcing contributed to a weakening AMOC at a rate of 0.41 Sv per century. The decadal variation in TSI was the main contributor to this decline due to solar forcing. |
format |
Article in Journal/Newspaper |
author |
Ye, Aihua Zhu, Zhipeng Zhang, Ruyi Xiao, Ziniu Zhou, Limin |
spellingShingle |
Ye, Aihua Zhu, Zhipeng Zhang, Ruyi Xiao, Ziniu Zhou, Limin Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) |
author_facet |
Ye, Aihua Zhu, Zhipeng Zhang, Ruyi Xiao, Ziniu Zhou, Limin |
author_sort |
Ye, Aihua |
title |
Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) |
title_short |
Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) |
title_full |
Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) |
title_fullStr |
Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) |
title_full_unstemmed |
Influence of solar forcing on multidecadal variability in the Atlantic meridional overturning circulation (AMOC) |
title_sort |
influence of solar forcing on multidecadal variability in the atlantic meridional overturning circulation (amoc) |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/feart.2023.1165386 https://www.frontiersin.org/articles/10.3389/feart.2023.1165386/full |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Frontiers in Earth Science volume 11 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2023.1165386 |
container_title |
Frontiers in Earth Science |
container_volume |
11 |
_version_ |
1810463821231292416 |