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
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 t...
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ftawi:oai:epic.awi.de:55861 2023-05-15T14:27:52+02:00 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 2022-03 application/pdf https://epic.awi.de/id/eprint/55861/ https://epic.awi.de/id/eprint/55861/1/Wang_DS_2022.pdf https://doi.org/10.1088/1748-9326%2Fac5562 https://hdl.handle.net/10013/epic.224dafae-e18b-4b0e-ac76-5c33ce945edb https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/55861/1/Wang_DS_2022.pdf https://hdl.handle.net/ Wang, Q. orcid:0000-0002-2704-5394 , Shu, Q. , Danilov, S. orcid:0000-0001-8098-182X and Sidorenko, D. orcid:0000-0001-8579-6068 (2022) 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 , Environmental Research Letters, 17 , 044046 . doi:10.1088/1748-9326/ac5562 <https://doi.org/10.1088/1748-9326%2Fac5562> , hdl:10013/epic.224dafae-e18b-4b0e-ac76-5c33ce945edb EPIC3Environmental Research Letters, 17, pp. 044046, ISSN: 1748-9326 Article NonPeerReviewed 2022 ftawi https://doi.org/10.1088/1748-9326%2Fac5562 https://doi.org/10.1088/1748-9326/ac5562 2022-07-03T23:12:19Z 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 Arctic Ocean Greenland North Atlantic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Greenland |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
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. |
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 |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/55861/ https://epic.awi.de/id/eprint/55861/1/Wang_DS_2022.pdf https://doi.org/10.1088/1748-9326%2Fac5562 https://hdl.handle.net/10013/epic.224dafae-e18b-4b0e-ac76-5c33ce945edb https://hdl.handle.net/ |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Arctic Ocean Greenland North Atlantic Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Greenland North Atlantic Sea ice |
op_source |
EPIC3Environmental Research Letters, 17, pp. 044046, ISSN: 1748-9326 |
op_relation |
https://epic.awi.de/id/eprint/55861/1/Wang_DS_2022.pdf https://hdl.handle.net/ Wang, Q. orcid:0000-0002-2704-5394 , Shu, Q. , Danilov, S. orcid:0000-0001-8098-182X and Sidorenko, D. orcid:0000-0001-8579-6068 (2022) 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 , Environmental Research Letters, 17 , 044046 . doi:10.1088/1748-9326/ac5562 <https://doi.org/10.1088/1748-9326%2Fac5562> , hdl:10013/epic.224dafae-e18b-4b0e-ac76-5c33ce945edb |
op_doi |
https://doi.org/10.1088/1748-9326%2Fac5562 https://doi.org/10.1088/1748-9326/ac5562 |
_version_ |
1766301919270141952 |