Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration
Abstract The Atlantic Meridional Overturning Circulation (AMOC), a tipping component of the climate system, is projected to slowdown during the 21st century in response to increased atmospheric CO2 concentration. The rate and start of the weakening are associated with relatively large uncertainties....
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ftdoajarticles:oai:doaj.org/article:597726d43173465fa35e30cd19e4ba22 2023-05-15T17:32:27+02:00 Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration Mihai Dima Denis R. Nichita Gerrit Lohmann Monica Ionita Mirela Voiculescu 2021-04-01T00:00:00Z https://doi.org/10.1038/s41612-021-00182-x https://doaj.org/article/597726d43173465fa35e30cd19e4ba22 EN eng Nature Portfolio https://doi.org/10.1038/s41612-021-00182-x https://doaj.org/toc/2397-3722 doi:10.1038/s41612-021-00182-x 2397-3722 https://doaj.org/article/597726d43173465fa35e30cd19e4ba22 npj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-8 (2021) Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2021 ftdoajarticles https://doi.org/10.1038/s41612-021-00182-x 2022-12-31T05:19:39Z Abstract The Atlantic Meridional Overturning Circulation (AMOC), a tipping component of the climate system, is projected to slowdown during the 21st century in response to increased atmospheric CO2 concentration. The rate and start of the weakening are associated with relatively large uncertainties. Observed sea surface temperature-based reconstructions indicate that AMOC has been weakening since the mid-20th century, but its forcing factors are not fully understood. Here we provide dynamical observational evidence that the increasing atmospheric CO2 concentration affects the North Atlantic heat fluxes and precipitation rate, and weakens AMOC, consistent with numerical simulations. The inferred weakening, starting in the late 19th century, earlier than previously suggested, is estimated at 3.7 ± 1.0 Sv over the 1854–2016 period, which is larger than it is shown in numerical simulations (1.4 ± 1.4 Sv). Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles npj Climate and Atmospheric Science 4 1 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
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Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Mihai Dima Denis R. Nichita Gerrit Lohmann Monica Ionita Mirela Voiculescu Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration |
topic_facet |
Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Abstract The Atlantic Meridional Overturning Circulation (AMOC), a tipping component of the climate system, is projected to slowdown during the 21st century in response to increased atmospheric CO2 concentration. The rate and start of the weakening are associated with relatively large uncertainties. Observed sea surface temperature-based reconstructions indicate that AMOC has been weakening since the mid-20th century, but its forcing factors are not fully understood. Here we provide dynamical observational evidence that the increasing atmospheric CO2 concentration affects the North Atlantic heat fluxes and precipitation rate, and weakens AMOC, consistent with numerical simulations. The inferred weakening, starting in the late 19th century, earlier than previously suggested, is estimated at 3.7 ± 1.0 Sv over the 1854–2016 period, which is larger than it is shown in numerical simulations (1.4 ± 1.4 Sv). |
format |
Article in Journal/Newspaper |
author |
Mihai Dima Denis R. Nichita Gerrit Lohmann Monica Ionita Mirela Voiculescu |
author_facet |
Mihai Dima Denis R. Nichita Gerrit Lohmann Monica Ionita Mirela Voiculescu |
author_sort |
Mihai Dima |
title |
Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration |
title_short |
Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration |
title_full |
Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration |
title_fullStr |
Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration |
title_full_unstemmed |
Early-onset of Atlantic Meridional Overturning Circulation weakening in response to atmospheric CO2 concentration |
title_sort |
early-onset of atlantic meridional overturning circulation weakening in response to atmospheric co2 concentration |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41612-021-00182-x https://doaj.org/article/597726d43173465fa35e30cd19e4ba22 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
npj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-8 (2021) |
op_relation |
https://doi.org/10.1038/s41612-021-00182-x https://doaj.org/toc/2397-3722 doi:10.1038/s41612-021-00182-x 2397-3722 https://doaj.org/article/597726d43173465fa35e30cd19e4ba22 |
op_doi |
https://doi.org/10.1038/s41612-021-00182-x |
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npj Climate and Atmospheric Science |
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4 |
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1 |
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1766130600544043008 |