An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s
Abstract The North Atlantic subpolar gyre influences the climate in many different ways. Here, we identified that it is also responsible for a recent extreme event of Arctic Ocean freshwater export west of Greenland. A shift in climate regimes occurred in the mid-2000s, with a significant negative t...
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Online Access: | http://dx.doi.org/10.1088/1748-9326/ac5562 https://iopscience.iop.org/article/10.1088/1748-9326/ac5562 https://iopscience.iop.org/article/10.1088/1748-9326/ac5562/pdf |
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crioppubl:10.1088/1748-9326/ac5562 2024-10-13T14:04:35+00:00 An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s Wang, Qiang Shu, Qi Danilov, Sergey Sidorenko, Dmitry German Federal Ministry for Education and Research German Helmholtz Climate Initiative REKLIM 2022 http://dx.doi.org/10.1088/1748-9326/ac5562 https://iopscience.iop.org/article/10.1088/1748-9326/ac5562 https://iopscience.iop.org/article/10.1088/1748-9326/ac5562/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 17, issue 4, page 044046 ISSN 1748-9326 journal-article 2022 crioppubl https://doi.org/10.1088/1748-9326/ac5562 2024-09-17T04:18:23Z Abstract The North Atlantic subpolar gyre influences the climate in many different ways. Here, we identified that it is also responsible for a recent extreme event of Arctic Ocean freshwater export west of Greenland. A shift in climate regimes occurred in the mid-2000s, with a significant negative trend in the dynamic sea level in the subpolar gyre since then. We found that the dynamic sea level drop induced a strong increase in freshwater export west of Greenland, in particular from 2015 to 2017, when the sea level was close to the minimum. Sea ice melting and atmospheric variability in the Arctic had only a small contribution to this event. As the exported water from the Arctic Ocean has low salinity and constituents of chemical tracers very different from those in the North Atlantic, such events might have impacts on the North Atlantic ecosystem and the climate as well. Our study suggests that such events might be predictable if the subpolar gyre sea level has certain predictability. Article in Journal/Newspaper Arctic Arctic Ocean Greenland North Atlantic Sea ice IOP Publishing Arctic Arctic Ocean Greenland Environmental Research Letters 17 4 044046 |
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Abstract The North Atlantic subpolar gyre influences the climate in many different ways. Here, we identified that it is also responsible for a recent extreme event of Arctic Ocean freshwater export west of Greenland. A shift in climate regimes occurred in the mid-2000s, with a significant negative trend in the dynamic sea level in the subpolar gyre since then. We found that the dynamic sea level drop induced a strong increase in freshwater export west of Greenland, in particular from 2015 to 2017, when the sea level was close to the minimum. Sea ice melting and atmospheric variability in the Arctic had only a small contribution to this event. As the exported water from the Arctic Ocean has low salinity and constituents of chemical tracers very different from those in the North Atlantic, such events might have impacts on the North Atlantic ecosystem and the climate as well. Our study suggests that such events might be predictable if the subpolar gyre sea level has certain predictability. |
author2 |
German Federal Ministry for Education and Research German Helmholtz Climate Initiative REKLIM |
format |
Article in Journal/Newspaper |
author |
Wang, Qiang Shu, Qi Danilov, Sergey Sidorenko, Dmitry |
spellingShingle |
Wang, Qiang Shu, Qi Danilov, Sergey Sidorenko, Dmitry An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s |
author_facet |
Wang, Qiang Shu, Qi Danilov, Sergey Sidorenko, Dmitry |
author_sort |
Wang, Qiang |
title |
An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s |
title_short |
An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s |
title_full |
An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s |
title_fullStr |
An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s |
title_full_unstemmed |
An extreme event of enhanced Arctic Ocean export west of Greenland caused by the pronounced dynamic sea level drop in the North Atlantic subpolar gyre in the mid-to-late 2010s |
title_sort |
extreme event of enhanced arctic ocean export west of greenland caused by the pronounced dynamic sea level drop in the north atlantic subpolar gyre in the mid-to-late 2010s |
publisher |
IOP Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1088/1748-9326/ac5562 https://iopscience.iop.org/article/10.1088/1748-9326/ac5562 https://iopscience.iop.org/article/10.1088/1748-9326/ac5562/pdf |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Ocean Greenland North Atlantic Sea ice |
genre_facet |
Arctic Arctic Ocean Greenland North Atlantic Sea ice |
op_source |
Environmental Research Letters volume 17, issue 4, page 044046 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ac5562 |
container_title |
Environmental Research Letters |
container_volume |
17 |
container_issue |
4 |
container_start_page |
044046 |
_version_ |
1812809892986093568 |