Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean
Arctic sea-ice loss is a leading indicator of climate change and can be attributed, in large part, to atmospheric forcing. Here, we show that recent ice reductions, weakening of the halocline, and shoaling of the intermediate-depth Atlantic Water layer in the eastern Eurasian Basin have increased wi...
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Online Access: | https://epic.awi.de/id/eprint/44962/ https://doi.org/10.1126/science.aai8204 https://hdl.handle.net/10013/epic.51181 |
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ftawi:oai:epic.awi.de:44962 2024-09-15T17:51:33+00:00 Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean Polyakov, Igor V. Pnyushkov, Andrey V. Alkire, Matthew B. Ashik, Igor M. Baumann, Till M. Carmack, Eddy C. Goszczko, Ilona Guthrie, John Ivanov, Vladimir V. Kanzow, Torsten Krishfield, Richard Kwok, Ronald Sundfjord, Arild Morison, James Rember, Robert Yulin, Alexander 2017-04 https://epic.awi.de/id/eprint/44962/ https://doi.org/10.1126/science.aai8204 https://hdl.handle.net/10013/epic.51181 unknown Polyakov, I. V. , Pnyushkov, A. V. , Alkire, M. B. , Ashik, I. M. , Baumann, T. M. , Carmack, E. C. , Goszczko, I. , Guthrie, J. , Ivanov, V. V. , Kanzow, T. , Krishfield, R. , Kwok, R. , Sundfjord, A. , Morison, J. , Rember, R. and Yulin, A. (2017) Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean , Science, 356 (6335), pp. 285-291 . doi:10.1126/science.aai8204 <https://doi.org/10.1126/science.aai8204> , hdl:10013/epic.51181 EPIC3Science, 356(6335), pp. 285-291, ISSN: 0036-8075 Article peerRev 2017 ftawi https://doi.org/10.1126/science.aai8204 2024-06-24T04:17:43Z Arctic sea-ice loss is a leading indicator of climate change and can be attributed, in large part, to atmospheric forcing. Here, we show that recent ice reductions, weakening of the halocline, and shoaling of the intermediate-depth Atlantic Water layer in the eastern Eurasian Basin have increased winter ventilation in the ocean interior, making this region structurally similar to that of the western Eurasian Basin. The associated enhanced release of oceanic heat has reduced winter sea-ice formation at a rate now comparable to losses from atmospheric thermodynamic forcing, thus explaining the recent reduction in sea-ice cover in the eastern Eurasian Basin. This encroaching "atlantification" of the Eurasian Basin represents an essential step toward a new Arctic climate state, with a substantially greater role for Atlantic inflows. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Science 356 6335 285 291 |
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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 |
Arctic sea-ice loss is a leading indicator of climate change and can be attributed, in large part, to atmospheric forcing. Here, we show that recent ice reductions, weakening of the halocline, and shoaling of the intermediate-depth Atlantic Water layer in the eastern Eurasian Basin have increased winter ventilation in the ocean interior, making this region structurally similar to that of the western Eurasian Basin. The associated enhanced release of oceanic heat has reduced winter sea-ice formation at a rate now comparable to losses from atmospheric thermodynamic forcing, thus explaining the recent reduction in sea-ice cover in the eastern Eurasian Basin. This encroaching "atlantification" of the Eurasian Basin represents an essential step toward a new Arctic climate state, with a substantially greater role for Atlantic inflows. |
format |
Article in Journal/Newspaper |
author |
Polyakov, Igor V. Pnyushkov, Andrey V. Alkire, Matthew B. Ashik, Igor M. Baumann, Till M. Carmack, Eddy C. Goszczko, Ilona Guthrie, John Ivanov, Vladimir V. Kanzow, Torsten Krishfield, Richard Kwok, Ronald Sundfjord, Arild Morison, James Rember, Robert Yulin, Alexander |
spellingShingle |
Polyakov, Igor V. Pnyushkov, Andrey V. Alkire, Matthew B. Ashik, Igor M. Baumann, Till M. Carmack, Eddy C. Goszczko, Ilona Guthrie, John Ivanov, Vladimir V. Kanzow, Torsten Krishfield, Richard Kwok, Ronald Sundfjord, Arild Morison, James Rember, Robert Yulin, Alexander Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean |
author_facet |
Polyakov, Igor V. Pnyushkov, Andrey V. Alkire, Matthew B. Ashik, Igor M. Baumann, Till M. Carmack, Eddy C. Goszczko, Ilona Guthrie, John Ivanov, Vladimir V. Kanzow, Torsten Krishfield, Richard Kwok, Ronald Sundfjord, Arild Morison, James Rember, Robert Yulin, Alexander |
author_sort |
Polyakov, Igor V. |
title |
Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean |
title_short |
Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean |
title_full |
Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean |
title_fullStr |
Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean |
title_full_unstemmed |
Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean |
title_sort |
greater role for atlantic inflows on sea-ice loss in the eurasian basin of the arctic ocean |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/44962/ https://doi.org/10.1126/science.aai8204 https://hdl.handle.net/10013/epic.51181 |
genre |
Arctic Arctic Ocean Climate change Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Sea ice |
op_source |
EPIC3Science, 356(6335), pp. 285-291, ISSN: 0036-8075 |
op_relation |
Polyakov, I. V. , Pnyushkov, A. V. , Alkire, M. B. , Ashik, I. M. , Baumann, T. M. , Carmack, E. C. , Goszczko, I. , Guthrie, J. , Ivanov, V. V. , Kanzow, T. , Krishfield, R. , Kwok, R. , Sundfjord, A. , Morison, J. , Rember, R. and Yulin, A. (2017) Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean , Science, 356 (6335), pp. 285-291 . doi:10.1126/science.aai8204 <https://doi.org/10.1126/science.aai8204> , hdl:10013/epic.51181 |
op_doi |
https://doi.org/10.1126/science.aai8204 |
container_title |
Science |
container_volume |
356 |
container_issue |
6335 |
container_start_page |
285 |
op_container_end_page |
291 |
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1810293468729180160 |