How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s?
We show how changes in the global distribution of anthropogenic aerosols favor different spatial patterns in the North Atlantic sea-surface temperature (NASST). The NASSTs largely show the expected decrease associated with the anthropogenic aerosols in the 1970s, but also an unusual warming response...
Published in: | Geophysical Research Letters |
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AGU (American Geophysical Union)
2021
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Online Access: | https://oceanrep.geomar.de/id/eprint/57637/ https://oceanrep.geomar.de/id/eprint/57637/1/Geophysical%20Research%20Letters_2021_Fiedler%20.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL092142 https://doi.org/10.1029/2020gl092142 |
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ftoceanrep:oai:oceanrep.geomar.de:57637 2024-02-11T10:06:05+01:00 How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? Fiedler, Stephanie Putrasahan, D. 2021-04-16 text https://oceanrep.geomar.de/id/eprint/57637/ https://oceanrep.geomar.de/id/eprint/57637/1/Geophysical%20Research%20Letters_2021_Fiedler%20.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL092142 https://doi.org/10.1029/2020gl092142 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/57637/1/Geophysical%20Research%20Letters_2021_Fiedler%20.pdf Fiedler, S. and Putrasahan, D. (2021) How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s?. Open Access Geophysical Research Letters, 48 (7). Art.Nr. e2020GL092142. DOI 10.1029/2020gl092142 <https://doi.org/10.1029/2020gl092142>. doi:10.1029/2020gl092142 cc_by_nc_nd_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2021 ftoceanrep https://doi.org/10.1029/2020gl092142 2024-01-15T00:26:28Z We show how changes in the global distribution of anthropogenic aerosols favor different spatial patterns in the North Atlantic sea-surface temperature (NASST). The NASSTs largely show the expected decrease associated with the anthropogenic aerosols in the 1970s, but also an unusual warming response in the eastern sub-polar gyre, the region of the North Atlantic warming hole. The NASST response reversed for the anthropogenic aerosols in the 2000s against 1970s. The regional reduction in anthropogenic aerosols favored as follows: (1) a strengthening of the warming hole and (2) a NASST increase at high latitudes associated with changes in the coupled atmosphere-ocean dynamics. We found that the gyre component of the northward Atlantic heat transport in mid-to high latitudes is an important driver for the heat convergence associated with the NASST patterns. At least two-thirds of the NASST response in MPI-ESM1.2 is associated with aerosol-cloud interactions, highlighting the need to better understand them. Key Points: - Anthropogenic aerosol patterns affect the coupled atmosphere-ocean dynamical response - 1970s to 2000s aerosol pattern change enhances North Atlantic warming hole through ocean meridional heat convergence by the sub-polar gyre - Most of the response to anthropogenic aerosols is associated with aerosol-cloud interactions Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Geophysical Research Letters 48 7 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
We show how changes in the global distribution of anthropogenic aerosols favor different spatial patterns in the North Atlantic sea-surface temperature (NASST). The NASSTs largely show the expected decrease associated with the anthropogenic aerosols in the 1970s, but also an unusual warming response in the eastern sub-polar gyre, the region of the North Atlantic warming hole. The NASST response reversed for the anthropogenic aerosols in the 2000s against 1970s. The regional reduction in anthropogenic aerosols favored as follows: (1) a strengthening of the warming hole and (2) a NASST increase at high latitudes associated with changes in the coupled atmosphere-ocean dynamics. We found that the gyre component of the northward Atlantic heat transport in mid-to high latitudes is an important driver for the heat convergence associated with the NASST patterns. At least two-thirds of the NASST response in MPI-ESM1.2 is associated with aerosol-cloud interactions, highlighting the need to better understand them. Key Points: - Anthropogenic aerosol patterns affect the coupled atmosphere-ocean dynamical response - 1970s to 2000s aerosol pattern change enhances North Atlantic warming hole through ocean meridional heat convergence by the sub-polar gyre - Most of the response to anthropogenic aerosols is associated with aerosol-cloud interactions |
format |
Article in Journal/Newspaper |
author |
Fiedler, Stephanie Putrasahan, D. |
spellingShingle |
Fiedler, Stephanie Putrasahan, D. How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? |
author_facet |
Fiedler, Stephanie Putrasahan, D. |
author_sort |
Fiedler, Stephanie |
title |
How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? |
title_short |
How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? |
title_full |
How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? |
title_fullStr |
How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? |
title_full_unstemmed |
How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s? |
title_sort |
how does the north atlantic sst pattern respond to anthropogenic aerosols in the 1970s and 2000s? |
publisher |
AGU (American Geophysical Union) |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/57637/ https://oceanrep.geomar.de/id/eprint/57637/1/Geophysical%20Research%20Letters_2021_Fiedler%20.pdf https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL092142 https://doi.org/10.1029/2020gl092142 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/57637/1/Geophysical%20Research%20Letters_2021_Fiedler%20.pdf Fiedler, S. and Putrasahan, D. (2021) How Does the North Atlantic SST Pattern Respond to Anthropogenic Aerosols in the 1970s and 2000s?. Open Access Geophysical Research Letters, 48 (7). Art.Nr. e2020GL092142. DOI 10.1029/2020gl092142 <https://doi.org/10.1029/2020gl092142>. doi:10.1029/2020gl092142 |
op_rights |
cc_by_nc_nd_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2020gl092142 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
7 |
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1790603543517855744 |